| // |
| // Copyright (c) 2013-2014 The ANGLE Project Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| // |
| |
| // validationES2.cpp: Validation functions for OpenGL ES 2.0 entry point parameters |
| |
| #include "libANGLE/validationES2.h" |
| |
| #include <cstdint> |
| |
| #include "common/mathutil.h" |
| #include "common/string_utils.h" |
| #include "common/utilities.h" |
| #include "libANGLE/Context.h" |
| #include "libANGLE/Framebuffer.h" |
| #include "libANGLE/FramebufferAttachment.h" |
| #include "libANGLE/Renderbuffer.h" |
| #include "libANGLE/Shader.h" |
| #include "libANGLE/Texture.h" |
| #include "libANGLE/Uniform.h" |
| #include "libANGLE/VertexArray.h" |
| #include "libANGLE/formatutils.h" |
| #include "libANGLE/validationES.h" |
| #include "libANGLE/validationES3.h" |
| |
| namespace gl |
| { |
| |
| namespace |
| { |
| |
| bool IsPartialBlit(gl::Context *context, |
| const FramebufferAttachment *readBuffer, |
| const FramebufferAttachment *writeBuffer, |
| GLint srcX0, |
| GLint srcY0, |
| GLint srcX1, |
| GLint srcY1, |
| GLint dstX0, |
| GLint dstY0, |
| GLint dstX1, |
| GLint dstY1) |
| { |
| const Extents &writeSize = writeBuffer->getSize(); |
| const Extents &readSize = readBuffer->getSize(); |
| |
| if (srcX0 != 0 || srcY0 != 0 || dstX0 != 0 || dstY0 != 0 || dstX1 != writeSize.width || |
| dstY1 != writeSize.height || srcX1 != readSize.width || srcY1 != readSize.height) |
| { |
| return true; |
| } |
| |
| if (context->getGLState().isScissorTestEnabled()) |
| { |
| const Rectangle &scissor = context->getGLState().getScissor(); |
| return scissor.x > 0 || scissor.y > 0 || scissor.width < writeSize.width || |
| scissor.height < writeSize.height; |
| } |
| |
| return false; |
| } |
| |
| template <typename T> |
| bool ValidatePathInstances(gl::Context *context, |
| GLsizei numPaths, |
| const void *paths, |
| GLuint pathBase) |
| { |
| const auto *array = static_cast<const T *>(paths); |
| |
| for (GLsizei i = 0; i < numPaths; ++i) |
| { |
| const GLuint pathName = array[i] + pathBase; |
| if (context->hasPath(pathName) && !context->hasPathData(pathName)) |
| { |
| context->handleError(gl::Error(GL_INVALID_OPERATION, "No such path object.")); |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| bool ValidateInstancedPathParameters(gl::Context *context, |
| GLsizei numPaths, |
| GLenum pathNameType, |
| const void *paths, |
| GLuint pathBase, |
| GLenum transformType, |
| const GLfloat *transformValues) |
| { |
| if (!context->getExtensions().pathRendering) |
| { |
| context->handleError( |
| gl::Error(GL_INVALID_OPERATION, "GL_CHROMIUM_path_rendering is not available.")); |
| return false; |
| } |
| |
| if (paths == nullptr) |
| { |
| context->handleError(gl::Error(GL_INVALID_VALUE, "No path name array.")); |
| return false; |
| } |
| |
| if (numPaths < 0) |
| { |
| context->handleError(gl::Error(GL_INVALID_VALUE, "Invalid (negative) numPaths.")); |
| return false; |
| } |
| |
| if (!angle::IsValueInRangeForNumericType<std::uint32_t>(numPaths)) |
| { |
| context->handleError(gl::Error(GL_INVALID_OPERATION, "Overflow in numPaths.")); |
| return false; |
| } |
| |
| std::uint32_t pathNameTypeSize = 0; |
| std::uint32_t componentCount = 0; |
| |
| switch (pathNameType) |
| { |
| case GL_UNSIGNED_BYTE: |
| pathNameTypeSize = sizeof(GLubyte); |
| if (!ValidatePathInstances<GLubyte>(context, numPaths, paths, pathBase)) |
| return false; |
| break; |
| |
| case GL_BYTE: |
| pathNameTypeSize = sizeof(GLbyte); |
| if (!ValidatePathInstances<GLbyte>(context, numPaths, paths, pathBase)) |
| return false; |
| break; |
| |
| case GL_UNSIGNED_SHORT: |
| pathNameTypeSize = sizeof(GLushort); |
| if (!ValidatePathInstances<GLushort>(context, numPaths, paths, pathBase)) |
| return false; |
| break; |
| |
| case GL_SHORT: |
| pathNameTypeSize = sizeof(GLshort); |
| if (!ValidatePathInstances<GLshort>(context, numPaths, paths, pathBase)) |
| return false; |
| break; |
| |
| case GL_UNSIGNED_INT: |
| pathNameTypeSize = sizeof(GLuint); |
| if (!ValidatePathInstances<GLuint>(context, numPaths, paths, pathBase)) |
| return false; |
| break; |
| |
| case GL_INT: |
| pathNameTypeSize = sizeof(GLint); |
| if (!ValidatePathInstances<GLint>(context, numPaths, paths, pathBase)) |
| return false; |
| break; |
| |
| default: |
| context->handleError(gl::Error(GL_INVALID_ENUM, "Invalid path name type.")); |
| return false; |
| } |
| |
| switch (transformType) |
| { |
| case GL_NONE: |
| componentCount = 0; |
| break; |
| case GL_TRANSLATE_X_CHROMIUM: |
| case GL_TRANSLATE_Y_CHROMIUM: |
| componentCount = 1; |
| break; |
| case GL_TRANSLATE_2D_CHROMIUM: |
| componentCount = 2; |
| break; |
| case GL_TRANSLATE_3D_CHROMIUM: |
| componentCount = 3; |
| break; |
| case GL_AFFINE_2D_CHROMIUM: |
| case GL_TRANSPOSE_AFFINE_2D_CHROMIUM: |
| componentCount = 6; |
| break; |
| case GL_AFFINE_3D_CHROMIUM: |
| case GL_TRANSPOSE_AFFINE_3D_CHROMIUM: |
| componentCount = 12; |
| break; |
| default: |
| context->handleError(gl::Error(GL_INVALID_ENUM, "Invalid transformation.")); |
| return false; |
| } |
| if (componentCount != 0 && transformValues == nullptr) |
| { |
| context->handleError(gl::Error(GL_INVALID_VALUE, "No transform array given.")); |
| return false; |
| } |
| |
| angle::CheckedNumeric<std::uint32_t> checkedSize(0); |
| checkedSize += (numPaths * pathNameTypeSize); |
| checkedSize += (numPaths * sizeof(GLfloat) * componentCount); |
| if (!checkedSize.IsValid()) |
| { |
| context->handleError(gl::Error(GL_INVALID_OPERATION, "Overflow in num paths.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool IsValidCopyTextureFormat(Context *context, GLenum internalFormat) |
| { |
| switch (GetUnsizedFormat(internalFormat)) |
| { |
| case GL_ALPHA: |
| case GL_LUMINANCE: |
| case GL_LUMINANCE_ALPHA: |
| case GL_RGB: |
| case GL_RGBA: |
| return true; |
| |
| case GL_RED: |
| return context->getClientMajorVersion() >= 3 || context->getExtensions().textureRG; |
| |
| case GL_BGRA_EXT: |
| return context->getExtensions().textureFormatBGRA8888; |
| |
| default: |
| return false; |
| } |
| } |
| |
| bool IsValidCopyTextureDestinationFormatType(Context *context, GLint internalFormat, GLenum type) |
| { |
| switch (internalFormat) |
| { |
| case GL_RGB: |
| case GL_RGBA: |
| break; |
| |
| case GL_BGRA_EXT: |
| return context->getExtensions().textureFormatBGRA8888; |
| |
| default: |
| return false; |
| } |
| |
| switch (type) |
| { |
| case GL_UNSIGNED_BYTE: |
| break; |
| |
| default: |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool IsValidCopyTextureDestinationTarget(Context *context, GLenum target) |
| { |
| switch (target) |
| { |
| case GL_TEXTURE_2D: |
| return true; |
| |
| // TODO(geofflang): accept GL_TEXTURE_RECTANGLE_ARB if the texture_rectangle extension is |
| // supported |
| |
| default: |
| return false; |
| } |
| } |
| |
| bool IsValidCopyTextureSourceTarget(Context *context, GLenum target) |
| { |
| if (IsValidCopyTextureDestinationTarget(context, target)) |
| { |
| return true; |
| } |
| |
| // TODO(geofflang): accept GL_TEXTURE_EXTERNAL_OES if the texture_external extension is |
| // supported |
| |
| return false; |
| } |
| |
| bool IsValidStencilFunc(GLenum func) |
| { |
| switch (func) |
| { |
| case GL_NEVER: |
| case GL_ALWAYS: |
| case GL_LESS: |
| case GL_LEQUAL: |
| case GL_EQUAL: |
| case GL_GEQUAL: |
| case GL_GREATER: |
| case GL_NOTEQUAL: |
| return true; |
| |
| default: |
| return false; |
| } |
| } |
| |
| bool IsValidStencilFace(GLenum face) |
| { |
| switch (face) |
| { |
| case GL_FRONT: |
| case GL_BACK: |
| case GL_FRONT_AND_BACK: |
| return true; |
| |
| default: |
| return false; |
| } |
| } |
| |
| bool IsValidStencilOp(GLenum op) |
| { |
| switch (op) |
| { |
| case GL_ZERO: |
| case GL_KEEP: |
| case GL_REPLACE: |
| case GL_INCR: |
| case GL_DECR: |
| case GL_INVERT: |
| case GL_INCR_WRAP: |
| case GL_DECR_WRAP: |
| return true; |
| |
| default: |
| return false; |
| } |
| } |
| |
| bool ValidateES2CopyTexImageParameters(ValidationContext *context, |
| GLenum target, |
| GLint level, |
| GLenum internalformat, |
| bool isSubImage, |
| GLint xoffset, |
| GLint yoffset, |
| GLint x, |
| GLint y, |
| GLsizei width, |
| GLsizei height, |
| GLint border) |
| { |
| if (!ValidTexture2DDestinationTarget(context, target)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid texture target")); |
| return false; |
| } |
| |
| if (!ValidImageSizeParameters(context, target, level, width, height, 1, isSubImage)) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Invalid texture dimensions.")); |
| return false; |
| } |
| |
| Format textureFormat = Format::Invalid(); |
| if (!ValidateCopyTexImageParametersBase(context, target, level, internalformat, isSubImage, |
| xoffset, yoffset, 0, x, y, width, height, border, |
| &textureFormat)) |
| { |
| return false; |
| } |
| |
| const gl::Framebuffer *framebuffer = context->getGLState().getReadFramebuffer(); |
| GLenum colorbufferFormat = |
| framebuffer->getReadColorbuffer()->getFormat().info->sizedInternalFormat; |
| const auto &formatInfo = *textureFormat.info; |
| |
| // [OpenGL ES 2.0.24] table 3.9 |
| if (isSubImage) |
| { |
| switch (formatInfo.format) |
| { |
| case GL_ALPHA: |
| if (colorbufferFormat != GL_ALPHA8_EXT && colorbufferFormat != GL_RGBA4 && |
| colorbufferFormat != GL_RGB5_A1 && colorbufferFormat != GL_RGBA8_OES && |
| colorbufferFormat != GL_BGRA8_EXT && colorbufferFormat != GL_BGR5_A1_ANGLEX) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_LUMINANCE: |
| if (colorbufferFormat != GL_R8_EXT && colorbufferFormat != GL_RG8_EXT && |
| colorbufferFormat != GL_RGB565 && colorbufferFormat != GL_RGB8_OES && |
| colorbufferFormat != GL_RGBA4 && colorbufferFormat != GL_RGB5_A1 && |
| colorbufferFormat != GL_RGBA8_OES && colorbufferFormat != GL_BGRA8_EXT && |
| colorbufferFormat != GL_BGR5_A1_ANGLEX) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_RED_EXT: |
| if (colorbufferFormat != GL_R8_EXT && colorbufferFormat != GL_RG8_EXT && |
| colorbufferFormat != GL_RGB565 && colorbufferFormat != GL_RGB8_OES && |
| colorbufferFormat != GL_RGBA4 && colorbufferFormat != GL_RGB5_A1 && |
| colorbufferFormat != GL_RGBA8_OES && colorbufferFormat != GL_R32F && |
| colorbufferFormat != GL_RG32F && colorbufferFormat != GL_RGB32F && |
| colorbufferFormat != GL_RGBA32F && colorbufferFormat != GL_BGRA8_EXT && |
| colorbufferFormat != GL_BGR5_A1_ANGLEX) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_RG_EXT: |
| if (colorbufferFormat != GL_RG8_EXT && colorbufferFormat != GL_RGB565 && |
| colorbufferFormat != GL_RGB8_OES && colorbufferFormat != GL_RGBA4 && |
| colorbufferFormat != GL_RGB5_A1 && colorbufferFormat != GL_RGBA8_OES && |
| colorbufferFormat != GL_RG32F && colorbufferFormat != GL_RGB32F && |
| colorbufferFormat != GL_RGBA32F && colorbufferFormat != GL_BGRA8_EXT && |
| colorbufferFormat != GL_BGR5_A1_ANGLEX) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_RGB: |
| if (colorbufferFormat != GL_RGB565 && colorbufferFormat != GL_RGB8_OES && |
| colorbufferFormat != GL_RGBA4 && colorbufferFormat != GL_RGB5_A1 && |
| colorbufferFormat != GL_RGBA8_OES && colorbufferFormat != GL_RGB32F && |
| colorbufferFormat != GL_RGBA32F && colorbufferFormat != GL_BGRA8_EXT && |
| colorbufferFormat != GL_BGR5_A1_ANGLEX) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_LUMINANCE_ALPHA: |
| case GL_RGBA: |
| if (colorbufferFormat != GL_RGBA4 && colorbufferFormat != GL_RGB5_A1 && |
| colorbufferFormat != GL_RGBA8_OES && colorbufferFormat != GL_RGBA32F && |
| colorbufferFormat != GL_BGRA8_EXT && colorbufferFormat != GL_BGR5_A1_ANGLEX) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: |
| case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: |
| case GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE: |
| case GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE: |
| case GL_ETC1_RGB8_OES: |
| case GL_ETC1_RGB8_LOSSY_DECODE_ANGLE: |
| case GL_COMPRESSED_RGB8_LOSSY_DECODE_ETC2_ANGLE: |
| case GL_COMPRESSED_SRGB8_LOSSY_DECODE_ETC2_ANGLE: |
| case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_LOSSY_DECODE_ETC2_ANGLE: |
| case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_LOSSY_DECODE_ETC2_ANGLE: |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| case GL_DEPTH_COMPONENT: |
| case GL_DEPTH_STENCIL_OES: |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| default: |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| |
| if (formatInfo.type == GL_FLOAT && !context->getExtensions().textureFloat) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| } |
| else |
| { |
| switch (internalformat) |
| { |
| case GL_ALPHA: |
| if (colorbufferFormat != GL_ALPHA8_EXT && colorbufferFormat != GL_RGBA4 && |
| colorbufferFormat != GL_RGB5_A1 && colorbufferFormat != GL_BGRA8_EXT && |
| colorbufferFormat != GL_RGBA8_OES && colorbufferFormat != GL_BGR5_A1_ANGLEX) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_LUMINANCE: |
| if (colorbufferFormat != GL_R8_EXT && colorbufferFormat != GL_RG8_EXT && |
| colorbufferFormat != GL_RGB565 && colorbufferFormat != GL_RGB8_OES && |
| colorbufferFormat != GL_RGBA4 && colorbufferFormat != GL_RGB5_A1 && |
| colorbufferFormat != GL_BGRA8_EXT && colorbufferFormat != GL_RGBA8_OES && |
| colorbufferFormat != GL_BGR5_A1_ANGLEX) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_RED_EXT: |
| if (colorbufferFormat != GL_R8_EXT && colorbufferFormat != GL_RG8_EXT && |
| colorbufferFormat != GL_RGB565 && colorbufferFormat != GL_RGB8_OES && |
| colorbufferFormat != GL_RGBA4 && colorbufferFormat != GL_RGB5_A1 && |
| colorbufferFormat != GL_BGRA8_EXT && colorbufferFormat != GL_RGBA8_OES && |
| colorbufferFormat != GL_BGR5_A1_ANGLEX) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_RG_EXT: |
| if (colorbufferFormat != GL_RG8_EXT && colorbufferFormat != GL_RGB565 && |
| colorbufferFormat != GL_RGB8_OES && colorbufferFormat != GL_RGBA4 && |
| colorbufferFormat != GL_RGB5_A1 && colorbufferFormat != GL_BGRA8_EXT && |
| colorbufferFormat != GL_RGBA8_OES && colorbufferFormat != GL_BGR5_A1_ANGLEX) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_RGB: |
| if (colorbufferFormat != GL_RGB565 && colorbufferFormat != GL_RGB8_OES && |
| colorbufferFormat != GL_RGBA4 && colorbufferFormat != GL_RGB5_A1 && |
| colorbufferFormat != GL_BGRA8_EXT && colorbufferFormat != GL_RGBA8_OES && |
| colorbufferFormat != GL_BGR5_A1_ANGLEX) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_LUMINANCE_ALPHA: |
| case GL_RGBA: |
| if (colorbufferFormat != GL_RGBA4 && colorbufferFormat != GL_RGB5_A1 && |
| colorbufferFormat != GL_BGRA8_EXT && colorbufferFormat != GL_RGBA8_OES && |
| colorbufferFormat != GL_BGR5_A1_ANGLEX) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: |
| case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: |
| if (context->getExtensions().textureCompressionDXT1) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| else |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE: |
| if (context->getExtensions().textureCompressionDXT3) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| else |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE: |
| if (context->getExtensions().textureCompressionDXT5) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| else |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_ETC1_RGB8_OES: |
| if (context->getExtensions().compressedETC1RGB8Texture) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| else |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_ETC1_RGB8_LOSSY_DECODE_ANGLE: |
| case GL_COMPRESSED_RGB8_LOSSY_DECODE_ETC2_ANGLE: |
| case GL_COMPRESSED_SRGB8_LOSSY_DECODE_ETC2_ANGLE: |
| case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_LOSSY_DECODE_ETC2_ANGLE: |
| case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_LOSSY_DECODE_ETC2_ANGLE: |
| if (context->getExtensions().lossyETCDecode) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, |
| "ETC lossy decode formats can't be copied to.")); |
| return false; |
| } |
| else |
| { |
| context->handleError(Error( |
| GL_INVALID_ENUM, "ANGLE_lossy_etc_decode extension is not supported.")); |
| return false; |
| } |
| break; |
| case GL_DEPTH_COMPONENT: |
| case GL_DEPTH_COMPONENT16: |
| case GL_DEPTH_COMPONENT32_OES: |
| case GL_DEPTH_STENCIL_OES: |
| case GL_DEPTH24_STENCIL8_OES: |
| if (context->getExtensions().depthTextures) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| else |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| default: |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| } |
| |
| // If width or height is zero, it is a no-op. Return false without setting an error. |
| return (width > 0 && height > 0); |
| } |
| |
| bool ValidCap(const Context *context, GLenum cap, bool queryOnly) |
| { |
| switch (cap) |
| { |
| // EXT_multisample_compatibility |
| case GL_MULTISAMPLE_EXT: |
| case GL_SAMPLE_ALPHA_TO_ONE_EXT: |
| return context->getExtensions().multisampleCompatibility; |
| |
| case GL_CULL_FACE: |
| case GL_POLYGON_OFFSET_FILL: |
| case GL_SAMPLE_ALPHA_TO_COVERAGE: |
| case GL_SAMPLE_COVERAGE: |
| case GL_SCISSOR_TEST: |
| case GL_STENCIL_TEST: |
| case GL_DEPTH_TEST: |
| case GL_BLEND: |
| case GL_DITHER: |
| return true; |
| |
| case GL_PRIMITIVE_RESTART_FIXED_INDEX: |
| case GL_RASTERIZER_DISCARD: |
| return (context->getClientMajorVersion() >= 3); |
| |
| case GL_DEBUG_OUTPUT_SYNCHRONOUS: |
| case GL_DEBUG_OUTPUT: |
| return context->getExtensions().debug; |
| |
| case GL_BIND_GENERATES_RESOURCE_CHROMIUM: |
| return queryOnly && context->getExtensions().bindGeneratesResource; |
| |
| case GL_CLIENT_ARRAYS_ANGLE: |
| return queryOnly && context->getExtensions().clientArrays; |
| |
| case GL_FRAMEBUFFER_SRGB_EXT: |
| return context->getExtensions().sRGBWriteControl; |
| |
| case GL_SAMPLE_MASK: |
| return context->getClientVersion() >= Version(3, 1); |
| |
| case GL_CONTEXT_ROBUST_RESOURCE_INITIALIZATION_ANGLE: |
| return queryOnly && context->getExtensions().robustResourceInitialization; |
| |
| default: |
| return false; |
| } |
| } |
| |
| } // anonymous namespace |
| |
| bool ValidateES2TexImageParameters(Context *context, |
| GLenum target, |
| GLint level, |
| GLenum internalformat, |
| bool isCompressed, |
| bool isSubImage, |
| GLint xoffset, |
| GLint yoffset, |
| GLsizei width, |
| GLsizei height, |
| GLint border, |
| GLenum format, |
| GLenum type, |
| GLsizei imageSize, |
| const void *pixels) |
| { |
| if (!ValidTexture2DDestinationTarget(context, target)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| |
| if (!ValidImageSizeParameters(context, target, level, width, height, 1, isSubImage)) |
| { |
| context->handleError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| |
| if (level < 0 || xoffset < 0 || std::numeric_limits<GLsizei>::max() - xoffset < width || |
| std::numeric_limits<GLsizei>::max() - yoffset < height) |
| { |
| context->handleError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| |
| if (!isSubImage && !isCompressed && internalformat != format) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| |
| const gl::Caps &caps = context->getCaps(); |
| |
| if (target == GL_TEXTURE_2D) |
| { |
| if (static_cast<GLuint>(width) > (caps.max2DTextureSize >> level) || |
| static_cast<GLuint>(height) > (caps.max2DTextureSize >> level)) |
| { |
| context->handleError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| } |
| else if (IsCubeMapTextureTarget(target)) |
| { |
| if (!isSubImage && width != height) |
| { |
| context->handleError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| |
| if (static_cast<GLuint>(width) > (caps.maxCubeMapTextureSize >> level) || |
| static_cast<GLuint>(height) > (caps.maxCubeMapTextureSize >> level)) |
| { |
| context->handleError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| } |
| else |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| |
| gl::Texture *texture = |
| context->getTargetTexture(IsCubeMapTextureTarget(target) ? GL_TEXTURE_CUBE_MAP : target); |
| if (!texture) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| |
| if (isSubImage) |
| { |
| const InternalFormat &textureInternalFormat = *texture->getFormat(target, level).info; |
| if (textureInternalFormat.internalFormat == GL_NONE) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Texture level does not exist.")); |
| return false; |
| } |
| |
| if (format != GL_NONE) |
| { |
| if (GetInternalFormatInfo(format, type).sizedInternalFormat != |
| textureInternalFormat.sizedInternalFormat) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| } |
| |
| if (static_cast<size_t>(xoffset + width) > texture->getWidth(target, level) || |
| static_cast<size_t>(yoffset + height) > texture->getHeight(target, level)) |
| { |
| context->handleError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| } |
| else |
| { |
| if (texture->getImmutableFormat()) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| } |
| |
| // Verify zero border |
| if (border != 0) |
| { |
| context->handleError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| |
| if (isCompressed) |
| { |
| GLenum actualInternalFormat = |
| isSubImage ? texture->getFormat(target, level).info->sizedInternalFormat |
| : internalformat; |
| switch (actualInternalFormat) |
| { |
| case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: |
| case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: |
| if (!context->getExtensions().textureCompressionDXT1) |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE: |
| if (!context->getExtensions().textureCompressionDXT1) |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE: |
| if (!context->getExtensions().textureCompressionDXT5) |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT: |
| case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT: |
| case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT: |
| case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT: |
| if (!context->getExtensions().textureCompressionS3TCsRGB) |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_ETC1_RGB8_OES: |
| if (!context->getExtensions().compressedETC1RGB8Texture) |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_ETC1_RGB8_LOSSY_DECODE_ANGLE: |
| case GL_COMPRESSED_RGB8_LOSSY_DECODE_ETC2_ANGLE: |
| case GL_COMPRESSED_SRGB8_LOSSY_DECODE_ETC2_ANGLE: |
| case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_LOSSY_DECODE_ETC2_ANGLE: |
| case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_LOSSY_DECODE_ETC2_ANGLE: |
| if (!context->getExtensions().lossyETCDecode) |
| { |
| context->handleError(Error( |
| GL_INVALID_ENUM, "ANGLE_lossy_etc_decode extension is not supported")); |
| return false; |
| } |
| break; |
| default: |
| context->handleError( |
| Error(GL_INVALID_ENUM, |
| "internalformat is not a supported compressed internal format")); |
| return false; |
| } |
| |
| if (isSubImage) |
| { |
| if (!ValidCompressedSubImageSize(context, actualInternalFormat, xoffset, yoffset, width, |
| height, texture->getWidth(target, level), |
| texture->getHeight(target, level))) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "Invalid compressed format dimension.")); |
| return false; |
| } |
| |
| if (format != actualInternalFormat) |
| { |
| context->handleError(Error( |
| GL_INVALID_OPERATION, "Format must match the internal format of the texture.")); |
| return false; |
| } |
| } |
| else |
| { |
| if (!ValidCompressedImageSize(context, actualInternalFormat, level, width, height)) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "Invalid compressed format dimension.")); |
| return false; |
| } |
| } |
| } |
| else |
| { |
| // validate <type> by itself (used as secondary key below) |
| switch (type) |
| { |
| case GL_UNSIGNED_BYTE: |
| case GL_UNSIGNED_SHORT_5_6_5: |
| case GL_UNSIGNED_SHORT_4_4_4_4: |
| case GL_UNSIGNED_SHORT_5_5_5_1: |
| case GL_UNSIGNED_SHORT: |
| case GL_UNSIGNED_INT: |
| case GL_UNSIGNED_INT_24_8_OES: |
| case GL_HALF_FLOAT_OES: |
| case GL_FLOAT: |
| break; |
| default: |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| |
| // validate <format> + <type> combinations |
| // - invalid <format> -> sets INVALID_ENUM |
| // - invalid <format>+<type> combination -> sets INVALID_OPERATION |
| switch (format) |
| { |
| case GL_ALPHA: |
| case GL_LUMINANCE: |
| case GL_LUMINANCE_ALPHA: |
| switch (type) |
| { |
| case GL_UNSIGNED_BYTE: |
| case GL_FLOAT: |
| case GL_HALF_FLOAT_OES: |
| break; |
| default: |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_RED: |
| case GL_RG: |
| if (!context->getExtensions().textureRG) |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| switch (type) |
| { |
| case GL_UNSIGNED_BYTE: |
| case GL_FLOAT: |
| case GL_HALF_FLOAT_OES: |
| break; |
| default: |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_RGB: |
| switch (type) |
| { |
| case GL_UNSIGNED_BYTE: |
| case GL_UNSIGNED_SHORT_5_6_5: |
| case GL_FLOAT: |
| case GL_HALF_FLOAT_OES: |
| break; |
| default: |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_RGBA: |
| switch (type) |
| { |
| case GL_UNSIGNED_BYTE: |
| case GL_UNSIGNED_SHORT_4_4_4_4: |
| case GL_UNSIGNED_SHORT_5_5_5_1: |
| case GL_FLOAT: |
| case GL_HALF_FLOAT_OES: |
| break; |
| default: |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_BGRA_EXT: |
| switch (type) |
| { |
| case GL_UNSIGNED_BYTE: |
| break; |
| default: |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_SRGB_EXT: |
| case GL_SRGB_ALPHA_EXT: |
| if (!context->getExtensions().sRGB) |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| switch (type) |
| { |
| case GL_UNSIGNED_BYTE: |
| break; |
| default: |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: // error cases for compressed textures are |
| // handled below |
| case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: |
| case GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE: |
| case GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE: |
| break; |
| case GL_DEPTH_COMPONENT: |
| switch (type) |
| { |
| case GL_UNSIGNED_SHORT: |
| case GL_UNSIGNED_INT: |
| break; |
| default: |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| case GL_DEPTH_STENCIL_OES: |
| switch (type) |
| { |
| case GL_UNSIGNED_INT_24_8_OES: |
| break; |
| default: |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| default: |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| |
| switch (format) |
| { |
| case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: |
| case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: |
| if (context->getExtensions().textureCompressionDXT1) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| else |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE: |
| if (context->getExtensions().textureCompressionDXT3) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| else |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE: |
| if (context->getExtensions().textureCompressionDXT5) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| else |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_ETC1_RGB8_OES: |
| if (context->getExtensions().compressedETC1RGB8Texture) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| else |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_ETC1_RGB8_LOSSY_DECODE_ANGLE: |
| case GL_COMPRESSED_RGB8_LOSSY_DECODE_ETC2_ANGLE: |
| case GL_COMPRESSED_SRGB8_LOSSY_DECODE_ETC2_ANGLE: |
| case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_LOSSY_DECODE_ETC2_ANGLE: |
| case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_LOSSY_DECODE_ETC2_ANGLE: |
| if (context->getExtensions().lossyETCDecode) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, |
| "ETC lossy decode formats can't work with this type.")); |
| return false; |
| } |
| else |
| { |
| context->handleError(Error( |
| GL_INVALID_ENUM, "ANGLE_lossy_etc_decode extension is not supported.")); |
| return false; |
| } |
| break; |
| case GL_DEPTH_COMPONENT: |
| case GL_DEPTH_STENCIL_OES: |
| if (!context->getExtensions().depthTextures) |
| { |
| context->handleError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| if (target != GL_TEXTURE_2D) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| // OES_depth_texture supports loading depth data and multiple levels, |
| // but ANGLE_depth_texture does not |
| if (pixels != nullptr || level != 0) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| default: |
| break; |
| } |
| |
| if (type == GL_FLOAT) |
| { |
| if (!context->getExtensions().textureFloat) |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| } |
| else if (type == GL_HALF_FLOAT_OES) |
| { |
| if (!context->getExtensions().textureHalfFloat) |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| } |
| } |
| |
| if (!ValidImageDataSize(context, target, width, height, 1, internalformat, type, pixels, |
| imageSize)) |
| { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateES2TexStorageParameters(Context *context, |
| GLenum target, |
| GLsizei levels, |
| GLenum internalformat, |
| GLsizei width, |
| GLsizei height) |
| { |
| if (target != GL_TEXTURE_2D && target != GL_TEXTURE_CUBE_MAP) |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| |
| if (width < 1 || height < 1 || levels < 1) |
| { |
| context->handleError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| |
| if (target == GL_TEXTURE_CUBE_MAP && width != height) |
| { |
| context->handleError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| |
| if (levels != 1 && levels != gl::log2(std::max(width, height)) + 1) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| |
| const gl::InternalFormat &formatInfo = gl::GetSizedInternalFormatInfo(internalformat); |
| if (formatInfo.format == GL_NONE || formatInfo.type == GL_NONE) |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| |
| const gl::Caps &caps = context->getCaps(); |
| |
| switch (target) |
| { |
| case GL_TEXTURE_2D: |
| if (static_cast<GLuint>(width) > caps.max2DTextureSize || |
| static_cast<GLuint>(height) > caps.max2DTextureSize) |
| { |
| context->handleError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| break; |
| case GL_TEXTURE_CUBE_MAP: |
| if (static_cast<GLuint>(width) > caps.maxCubeMapTextureSize || |
| static_cast<GLuint>(height) > caps.maxCubeMapTextureSize) |
| { |
| context->handleError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| break; |
| default: |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| |
| if (levels != 1 && !context->getExtensions().textureNPOT) |
| { |
| if (!gl::isPow2(width) || !gl::isPow2(height)) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| } |
| |
| switch (internalformat) |
| { |
| case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: |
| case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: |
| if (!context->getExtensions().textureCompressionDXT1) |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE: |
| if (!context->getExtensions().textureCompressionDXT3) |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE: |
| if (!context->getExtensions().textureCompressionDXT5) |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_ETC1_RGB8_OES: |
| if (!context->getExtensions().compressedETC1RGB8Texture) |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_ETC1_RGB8_LOSSY_DECODE_ANGLE: |
| case GL_COMPRESSED_RGB8_LOSSY_DECODE_ETC2_ANGLE: |
| case GL_COMPRESSED_SRGB8_LOSSY_DECODE_ETC2_ANGLE: |
| case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_LOSSY_DECODE_ETC2_ANGLE: |
| case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_LOSSY_DECODE_ETC2_ANGLE: |
| if (!context->getExtensions().lossyETCDecode) |
| { |
| context->handleError( |
| Error(GL_INVALID_ENUM, "ANGLE_lossy_etc_decode extension is not supported.")); |
| return false; |
| } |
| break; |
| case GL_RGBA32F_EXT: |
| case GL_RGB32F_EXT: |
| case GL_ALPHA32F_EXT: |
| case GL_LUMINANCE32F_EXT: |
| case GL_LUMINANCE_ALPHA32F_EXT: |
| if (!context->getExtensions().textureFloat) |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_RGBA16F_EXT: |
| case GL_RGB16F_EXT: |
| case GL_ALPHA16F_EXT: |
| case GL_LUMINANCE16F_EXT: |
| case GL_LUMINANCE_ALPHA16F_EXT: |
| if (!context->getExtensions().textureHalfFloat) |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_R8_EXT: |
| case GL_RG8_EXT: |
| if (!context->getExtensions().textureRG) |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_R16F_EXT: |
| case GL_RG16F_EXT: |
| if (!context->getExtensions().textureRG || !context->getExtensions().textureHalfFloat) |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_R32F_EXT: |
| case GL_RG32F_EXT: |
| if (!context->getExtensions().textureRG || !context->getExtensions().textureFloat) |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| case GL_DEPTH_COMPONENT16: |
| case GL_DEPTH_COMPONENT32_OES: |
| case GL_DEPTH24_STENCIL8_OES: |
| if (!context->getExtensions().depthTextures) |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| if (target != GL_TEXTURE_2D) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| // ANGLE_depth_texture only supports 1-level textures |
| if (levels != 1) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| default: |
| break; |
| } |
| |
| gl::Texture *texture = context->getTargetTexture(target); |
| if (!texture || texture->id() == 0) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| |
| if (texture->getImmutableFormat()) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateDiscardFramebufferEXT(Context *context, |
| GLenum target, |
| GLsizei numAttachments, |
| const GLenum *attachments) |
| { |
| if (!context->getExtensions().discardFramebuffer) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Extension not enabled")); |
| return false; |
| } |
| |
| bool defaultFramebuffer = false; |
| |
| switch (target) |
| { |
| case GL_FRAMEBUFFER: |
| defaultFramebuffer = |
| (context->getGLState().getTargetFramebuffer(GL_FRAMEBUFFER)->id() == 0); |
| break; |
| default: |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid framebuffer target")); |
| return false; |
| } |
| |
| return ValidateDiscardFramebufferBase(context, target, numAttachments, attachments, |
| defaultFramebuffer); |
| } |
| |
| bool ValidateBindVertexArrayOES(Context *context, GLuint array) |
| { |
| if (!context->getExtensions().vertexArrayObject) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Extension not enabled")); |
| return false; |
| } |
| |
| return ValidateBindVertexArrayBase(context, array); |
| } |
| |
| bool ValidateDeleteVertexArraysOES(Context *context, GLsizei n) |
| { |
| if (!context->getExtensions().vertexArrayObject) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Extension not enabled")); |
| return false; |
| } |
| |
| return ValidateGenOrDelete(context, n); |
| } |
| |
| bool ValidateGenVertexArraysOES(Context *context, GLsizei n) |
| { |
| if (!context->getExtensions().vertexArrayObject) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Extension not enabled")); |
| return false; |
| } |
| |
| return ValidateGenOrDelete(context, n); |
| } |
| |
| bool ValidateIsVertexArrayOES(Context *context) |
| { |
| if (!context->getExtensions().vertexArrayObject) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Extension not enabled")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateProgramBinaryOES(Context *context, |
| GLuint program, |
| GLenum binaryFormat, |
| const void *binary, |
| GLint length) |
| { |
| if (!context->getExtensions().getProgramBinary) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Extension not enabled")); |
| return false; |
| } |
| |
| return ValidateProgramBinaryBase(context, program, binaryFormat, binary, length); |
| } |
| |
| bool ValidateGetProgramBinaryOES(Context *context, |
| GLuint program, |
| GLsizei bufSize, |
| GLsizei *length, |
| GLenum *binaryFormat, |
| void *binary) |
| { |
| if (!context->getExtensions().getProgramBinary) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Extension not enabled")); |
| return false; |
| } |
| |
| return ValidateGetProgramBinaryBase(context, program, bufSize, length, binaryFormat, binary); |
| } |
| |
| static bool ValidDebugSource(GLenum source, bool mustBeThirdPartyOrApplication) |
| { |
| switch (source) |
| { |
| case GL_DEBUG_SOURCE_API: |
| case GL_DEBUG_SOURCE_SHADER_COMPILER: |
| case GL_DEBUG_SOURCE_WINDOW_SYSTEM: |
| case GL_DEBUG_SOURCE_OTHER: |
| // Only THIRD_PARTY and APPLICATION sources are allowed to be manually inserted |
| return !mustBeThirdPartyOrApplication; |
| |
| case GL_DEBUG_SOURCE_THIRD_PARTY: |
| case GL_DEBUG_SOURCE_APPLICATION: |
| return true; |
| |
| default: |
| return false; |
| } |
| } |
| |
| static bool ValidDebugType(GLenum type) |
| { |
| switch (type) |
| { |
| case GL_DEBUG_TYPE_ERROR: |
| case GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR: |
| case GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR: |
| case GL_DEBUG_TYPE_PERFORMANCE: |
| case GL_DEBUG_TYPE_PORTABILITY: |
| case GL_DEBUG_TYPE_OTHER: |
| case GL_DEBUG_TYPE_MARKER: |
| case GL_DEBUG_TYPE_PUSH_GROUP: |
| case GL_DEBUG_TYPE_POP_GROUP: |
| return true; |
| |
| default: |
| return false; |
| } |
| } |
| |
| static bool ValidDebugSeverity(GLenum severity) |
| { |
| switch (severity) |
| { |
| case GL_DEBUG_SEVERITY_HIGH: |
| case GL_DEBUG_SEVERITY_MEDIUM: |
| case GL_DEBUG_SEVERITY_LOW: |
| case GL_DEBUG_SEVERITY_NOTIFICATION: |
| return true; |
| |
| default: |
| return false; |
| } |
| } |
| |
| bool ValidateDebugMessageControlKHR(Context *context, |
| GLenum source, |
| GLenum type, |
| GLenum severity, |
| GLsizei count, |
| const GLuint *ids, |
| GLboolean enabled) |
| { |
| if (!context->getExtensions().debug) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Extension not enabled")); |
| return false; |
| } |
| |
| if (!ValidDebugSource(source, false) && source != GL_DONT_CARE) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid debug source.")); |
| return false; |
| } |
| |
| if (!ValidDebugType(type) && type != GL_DONT_CARE) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid debug type.")); |
| return false; |
| } |
| |
| if (!ValidDebugSeverity(severity) && severity != GL_DONT_CARE) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid debug severity.")); |
| return false; |
| } |
| |
| if (count > 0) |
| { |
| if (source == GL_DONT_CARE || type == GL_DONT_CARE) |
| { |
| context->handleError(Error( |
| GL_INVALID_OPERATION, |
| "If count is greater than zero, source and severity cannot be GL_DONT_CARE.")); |
| return false; |
| } |
| |
| if (severity != GL_DONT_CARE) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, |
| "If count is greater than zero, severity must be GL_DONT_CARE.")); |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| bool ValidateDebugMessageInsertKHR(Context *context, |
| GLenum source, |
| GLenum type, |
| GLuint id, |
| GLenum severity, |
| GLsizei length, |
| const GLchar *buf) |
| { |
| if (!context->getExtensions().debug) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Extension not enabled")); |
| return false; |
| } |
| |
| if (!context->getGLState().getDebug().isOutputEnabled()) |
| { |
| // If the DEBUG_OUTPUT state is disabled calls to DebugMessageInsert are discarded and do |
| // not generate an error. |
| return false; |
| } |
| |
| if (!ValidDebugSeverity(severity)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid debug severity.")); |
| return false; |
| } |
| |
| if (!ValidDebugType(type)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid debug type.")); |
| return false; |
| } |
| |
| if (!ValidDebugSource(source, true)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid debug source.")); |
| return false; |
| } |
| |
| size_t messageLength = (length < 0) ? strlen(buf) : length; |
| if (messageLength > context->getExtensions().maxDebugMessageLength) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, "Message length is larger than GL_MAX_DEBUG_MESSAGE_LENGTH.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateDebugMessageCallbackKHR(Context *context, |
| GLDEBUGPROCKHR callback, |
| const void *userParam) |
| { |
| if (!context->getExtensions().debug) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Extension not enabled")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateGetDebugMessageLogKHR(Context *context, |
| GLuint count, |
| GLsizei bufSize, |
| GLenum *sources, |
| GLenum *types, |
| GLuint *ids, |
| GLenum *severities, |
| GLsizei *lengths, |
| GLchar *messageLog) |
| { |
| if (!context->getExtensions().debug) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Extension not enabled")); |
| return false; |
| } |
| |
| if (bufSize < 0 && messageLog != nullptr) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, "bufSize must be positive if messageLog is not null.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidatePushDebugGroupKHR(Context *context, |
| GLenum source, |
| GLuint id, |
| GLsizei length, |
| const GLchar *message) |
| { |
| if (!context->getExtensions().debug) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Extension not enabled")); |
| return false; |
| } |
| |
| if (!ValidDebugSource(source, true)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid debug source.")); |
| return false; |
| } |
| |
| size_t messageLength = (length < 0) ? strlen(message) : length; |
| if (messageLength > context->getExtensions().maxDebugMessageLength) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, "Message length is larger than GL_MAX_DEBUG_MESSAGE_LENGTH.")); |
| return false; |
| } |
| |
| size_t currentStackSize = context->getGLState().getDebug().getGroupStackDepth(); |
| if (currentStackSize >= context->getExtensions().maxDebugGroupStackDepth) |
| { |
| context->handleError( |
| Error(GL_STACK_OVERFLOW, |
| "Cannot push more than GL_MAX_DEBUG_GROUP_STACK_DEPTH debug groups.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidatePopDebugGroupKHR(Context *context) |
| { |
| if (!context->getExtensions().debug) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Extension not enabled")); |
| return false; |
| } |
| |
| size_t currentStackSize = context->getGLState().getDebug().getGroupStackDepth(); |
| if (currentStackSize <= 1) |
| { |
| context->handleError(Error(GL_STACK_UNDERFLOW, "Cannot pop the default debug group.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| static bool ValidateObjectIdentifierAndName(Context *context, GLenum identifier, GLuint name) |
| { |
| switch (identifier) |
| { |
| case GL_BUFFER: |
| if (context->getBuffer(name) == nullptr) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "name is not a valid buffer.")); |
| return false; |
| } |
| return true; |
| |
| case GL_SHADER: |
| if (context->getShader(name) == nullptr) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "name is not a valid shader.")); |
| return false; |
| } |
| return true; |
| |
| case GL_PROGRAM: |
| if (context->getProgram(name) == nullptr) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "name is not a valid program.")); |
| return false; |
| } |
| return true; |
| |
| case GL_VERTEX_ARRAY: |
| if (context->getVertexArray(name) == nullptr) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "name is not a valid vertex array.")); |
| return false; |
| } |
| return true; |
| |
| case GL_QUERY: |
| if (context->getQuery(name) == nullptr) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "name is not a valid query.")); |
| return false; |
| } |
| return true; |
| |
| case GL_TRANSFORM_FEEDBACK: |
| if (context->getTransformFeedback(name) == nullptr) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, "name is not a valid transform feedback.")); |
| return false; |
| } |
| return true; |
| |
| case GL_SAMPLER: |
| if (context->getSampler(name) == nullptr) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "name is not a valid sampler.")); |
| return false; |
| } |
| return true; |
| |
| case GL_TEXTURE: |
| if (context->getTexture(name) == nullptr) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "name is not a valid texture.")); |
| return false; |
| } |
| return true; |
| |
| case GL_RENDERBUFFER: |
| if (context->getRenderbuffer(name) == nullptr) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "name is not a valid renderbuffer.")); |
| return false; |
| } |
| return true; |
| |
| case GL_FRAMEBUFFER: |
| if (context->getFramebuffer(name) == nullptr) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "name is not a valid framebuffer.")); |
| return false; |
| } |
| return true; |
| |
| default: |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid identifier.")); |
| return false; |
| } |
| } |
| |
| static bool ValidateLabelLength(Context *context, GLsizei length, const GLchar *label) |
| { |
| size_t labelLength = 0; |
| |
| if (length < 0) |
| { |
| if (label != nullptr) |
| { |
| labelLength = strlen(label); |
| } |
| } |
| else |
| { |
| labelLength = static_cast<size_t>(length); |
| } |
| |
| if (labelLength > context->getExtensions().maxLabelLength) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, "Label length is larger than GL_MAX_LABEL_LENGTH.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateObjectLabelKHR(Context *context, |
| GLenum identifier, |
| GLuint name, |
| GLsizei length, |
| const GLchar *label) |
| { |
| if (!context->getExtensions().debug) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Extension not enabled")); |
| return false; |
| } |
| |
| if (!ValidateObjectIdentifierAndName(context, identifier, name)) |
| { |
| return false; |
| } |
| |
| if (!ValidateLabelLength(context, length, label)) |
| { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateGetObjectLabelKHR(Context *context, |
| GLenum identifier, |
| GLuint name, |
| GLsizei bufSize, |
| GLsizei *length, |
| GLchar *label) |
| { |
| if (!context->getExtensions().debug) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Extension not enabled")); |
| return false; |
| } |
| |
| if (bufSize < 0) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "bufSize cannot be negative.")); |
| return false; |
| } |
| |
| if (!ValidateObjectIdentifierAndName(context, identifier, name)) |
| { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| static bool ValidateObjectPtrName(Context *context, const void *ptr) |
| { |
| if (context->getFenceSync(reinterpret_cast<GLsync>(const_cast<void *>(ptr))) == nullptr) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "name is not a valid sync.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateObjectPtrLabelKHR(Context *context, |
| const void *ptr, |
| GLsizei length, |
| const GLchar *label) |
| { |
| if (!context->getExtensions().debug) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Extension not enabled")); |
| return false; |
| } |
| |
| if (!ValidateObjectPtrName(context, ptr)) |
| { |
| return false; |
| } |
| |
| if (!ValidateLabelLength(context, length, label)) |
| { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateGetObjectPtrLabelKHR(Context *context, |
| const void *ptr, |
| GLsizei bufSize, |
| GLsizei *length, |
| GLchar *label) |
| { |
| if (!context->getExtensions().debug) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Extension not enabled")); |
| return false; |
| } |
| |
| if (bufSize < 0) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "bufSize cannot be negative.")); |
| return false; |
| } |
| |
| if (!ValidateObjectPtrName(context, ptr)) |
| { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateGetPointervKHR(Context *context, GLenum pname, void **params) |
| { |
| if (!context->getExtensions().debug) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Extension not enabled")); |
| return false; |
| } |
| |
| // TODO: represent this in Context::getQueryParameterInfo. |
| switch (pname) |
| { |
| case GL_DEBUG_CALLBACK_FUNCTION: |
| case GL_DEBUG_CALLBACK_USER_PARAM: |
| break; |
| |
| default: |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid pname.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateBlitFramebufferANGLE(Context *context, |
| GLint srcX0, |
| GLint srcY0, |
| GLint srcX1, |
| GLint srcY1, |
| GLint dstX0, |
| GLint dstY0, |
| GLint dstX1, |
| GLint dstY1, |
| GLbitfield mask, |
| GLenum filter) |
| { |
| if (!context->getExtensions().framebufferBlit) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Blit extension not available.")); |
| return false; |
| } |
| |
| if (srcX1 - srcX0 != dstX1 - dstX0 || srcY1 - srcY0 != dstY1 - dstY0) |
| { |
| // TODO(jmadill): Determine if this should be available on other implementations. |
| context->handleError(Error( |
| GL_INVALID_OPERATION, |
| "Scaling and flipping in BlitFramebufferANGLE not supported by this implementation.")); |
| return false; |
| } |
| |
| if (filter == GL_LINEAR) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Linear blit not supported in this extension")); |
| return false; |
| } |
| |
| Framebuffer *readFramebuffer = context->getGLState().getReadFramebuffer(); |
| Framebuffer *drawFramebuffer = context->getGLState().getDrawFramebuffer(); |
| |
| if (mask & GL_COLOR_BUFFER_BIT) |
| { |
| const FramebufferAttachment *readColorAttachment = readFramebuffer->getReadColorbuffer(); |
| const FramebufferAttachment *drawColorAttachment = drawFramebuffer->getFirstColorbuffer(); |
| |
| if (readColorAttachment && drawColorAttachment) |
| { |
| if (!(readColorAttachment->type() == GL_TEXTURE && |
| readColorAttachment->getTextureImageIndex().type == GL_TEXTURE_2D) && |
| readColorAttachment->type() != GL_RENDERBUFFER && |
| readColorAttachment->type() != GL_FRAMEBUFFER_DEFAULT) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| |
| for (size_t drawbufferIdx = 0; |
| drawbufferIdx < drawFramebuffer->getDrawbufferStateCount(); ++drawbufferIdx) |
| { |
| const FramebufferAttachment *attachment = |
| drawFramebuffer->getDrawBuffer(drawbufferIdx); |
| if (attachment) |
| { |
| if (!(attachment->type() == GL_TEXTURE && |
| attachment->getTextureImageIndex().type == GL_TEXTURE_2D) && |
| attachment->type() != GL_RENDERBUFFER && |
| attachment->type() != GL_FRAMEBUFFER_DEFAULT) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| |
| // Return an error if the destination formats do not match |
| if (!Format::SameSized(attachment->getFormat(), |
| readColorAttachment->getFormat())) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| } |
| } |
| |
| if (readFramebuffer->getSamples(context) != 0 && |
| IsPartialBlit(context, readColorAttachment, drawColorAttachment, srcX0, srcY0, |
| srcX1, srcY1, dstX0, dstY0, dstX1, dstY1)) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| } |
| } |
| |
| GLenum masks[] = {GL_DEPTH_BUFFER_BIT, GL_STENCIL_BUFFER_BIT}; |
| GLenum attachments[] = {GL_DEPTH_ATTACHMENT, GL_STENCIL_ATTACHMENT}; |
| for (size_t i = 0; i < 2; i++) |
| { |
| if (mask & masks[i]) |
| { |
| const FramebufferAttachment *readBuffer = |
| readFramebuffer->getAttachment(attachments[i]); |
| const FramebufferAttachment *drawBuffer = |
| drawFramebuffer->getAttachment(attachments[i]); |
| |
| if (readBuffer && drawBuffer) |
| { |
| if (IsPartialBlit(context, readBuffer, drawBuffer, srcX0, srcY0, srcX1, srcY1, |
| dstX0, dstY0, dstX1, dstY1)) |
| { |
| // only whole-buffer copies are permitted |
| context->handleError(Error(GL_INVALID_OPERATION, |
| "Only whole-buffer depth and stencil blits are " |
| "supported by this extension.")); |
| return false; |
| } |
| |
| if (readBuffer->getSamples() != 0 || drawBuffer->getSamples() != 0) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| } |
| } |
| } |
| |
| return ValidateBlitFramebufferParameters(context, srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, |
| dstX1, dstY1, mask, filter); |
| } |
| |
| bool ValidateClear(ValidationContext *context, GLbitfield mask) |
| { |
| auto fbo = context->getGLState().getDrawFramebuffer(); |
| if (fbo->checkStatus(context) != GL_FRAMEBUFFER_COMPLETE) |
| { |
| context->handleError(Error(GL_INVALID_FRAMEBUFFER_OPERATION)); |
| return false; |
| } |
| |
| if ((mask & ~(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT)) != 0) |
| { |
| context->handleError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| |
| if (context->getExtensions().webglCompatibility && (mask & GL_COLOR_BUFFER_BIT) != 0) |
| { |
| constexpr GLenum validComponentTypes[] = {GL_FLOAT, GL_UNSIGNED_NORMALIZED, |
| GL_SIGNED_NORMALIZED}; |
| |
| for (GLuint drawBufferIdx = 0; drawBufferIdx < context->getCaps().maxDrawBuffers; |
| drawBufferIdx++) |
| { |
| if (!ValidateWebGLFramebufferAttachmentClearType( |
| context, drawBufferIdx, validComponentTypes, ArraySize(validComponentTypes))) |
| { |
| return false; |
| } |
| } |
| } |
| |
| return true; |
| } |
| |
| bool ValidateDrawBuffersEXT(ValidationContext *context, GLsizei n, const GLenum *bufs) |
| { |
| if (!context->getExtensions().drawBuffers) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Extension not supported.")); |
| return false; |
| } |
| |
| return ValidateDrawBuffersBase(context, n, bufs); |
| } |
| |
| bool ValidateTexImage2D(Context *context, |
| GLenum target, |
| GLint level, |
| GLint internalformat, |
| GLsizei width, |
| GLsizei height, |
| GLint border, |
| GLenum format, |
| GLenum type, |
| const void *pixels) |
| { |
| if (context->getClientMajorVersion() < 3) |
| { |
| return ValidateES2TexImageParameters(context, target, level, internalformat, false, false, |
| 0, 0, width, height, border, format, type, -1, pixels); |
| } |
| |
| ASSERT(context->getClientMajorVersion() >= 3); |
| return ValidateES3TexImage2DParameters(context, target, level, internalformat, false, false, 0, |
| 0, 0, width, height, 1, border, format, type, -1, |
| pixels); |
| } |
| |
| bool ValidateTexImage2DRobust(Context *context, |
| GLenum target, |
| GLint level, |
| GLint internalformat, |
| GLsizei width, |
| GLsizei height, |
| GLint border, |
| GLenum format, |
| GLenum type, |
| GLsizei bufSize, |
| const void *pixels) |
| { |
| if (!ValidateRobustEntryPoint(context, bufSize)) |
| { |
| return false; |
| } |
| |
| if (context->getClientMajorVersion() < 3) |
| { |
| return ValidateES2TexImageParameters(context, target, level, internalformat, false, false, |
| 0, 0, width, height, border, format, type, bufSize, |
| pixels); |
| } |
| |
| ASSERT(context->getClientMajorVersion() >= 3); |
| return ValidateES3TexImage2DParameters(context, target, level, internalformat, false, false, 0, |
| 0, 0, width, height, 1, border, format, type, bufSize, |
| pixels); |
| } |
| |
| bool ValidateTexSubImage2D(Context *context, |
| GLenum target, |
| GLint level, |
| GLint xoffset, |
| GLint yoffset, |
| GLsizei width, |
| GLsizei height, |
| GLenum format, |
| GLenum type, |
| const void *pixels) |
| { |
| |
| if (context->getClientMajorVersion() < 3) |
| { |
| return ValidateES2TexImageParameters(context, target, level, GL_NONE, false, true, xoffset, |
| yoffset, width, height, 0, format, type, -1, pixels); |
| } |
| |
| ASSERT(context->getClientMajorVersion() >= 3); |
| return ValidateES3TexImage2DParameters(context, target, level, GL_NONE, false, true, xoffset, |
| yoffset, 0, width, height, 1, 0, format, type, -1, |
| pixels); |
| } |
| |
| bool ValidateTexSubImage2DRobustANGLE(Context *context, |
| GLenum target, |
| GLint level, |
| GLint xoffset, |
| GLint yoffset, |
| GLsizei width, |
| GLsizei height, |
| GLenum format, |
| GLenum type, |
| GLsizei bufSize, |
| const void *pixels) |
| { |
| if (!ValidateRobustEntryPoint(context, bufSize)) |
| { |
| return false; |
| } |
| |
| if (context->getClientMajorVersion() < 3) |
| { |
| return ValidateES2TexImageParameters(context, target, level, GL_NONE, false, true, xoffset, |
| yoffset, width, height, 0, format, type, bufSize, |
| pixels); |
| } |
| |
| ASSERT(context->getClientMajorVersion() >= 3); |
| return ValidateES3TexImage2DParameters(context, target, level, GL_NONE, false, true, xoffset, |
| yoffset, 0, width, height, 1, 0, format, type, bufSize, |
| pixels); |
| } |
| |
| bool ValidateCompressedTexImage2D(Context *context, |
| GLenum target, |
| GLint level, |
| GLenum internalformat, |
| GLsizei width, |
| GLsizei height, |
| GLint border, |
| GLsizei imageSize, |
| const void *data) |
| { |
| if (context->getClientMajorVersion() < 3) |
| { |
| if (!ValidateES2TexImageParameters(context, target, level, internalformat, true, false, 0, |
| 0, width, height, border, GL_NONE, GL_NONE, -1, data)) |
| { |
| return false; |
| } |
| } |
| else |
| { |
| ASSERT(context->getClientMajorVersion() >= 3); |
| if (!ValidateES3TexImage2DParameters(context, target, level, internalformat, true, false, 0, |
| 0, 0, width, height, 1, border, GL_NONE, GL_NONE, -1, |
| data)) |
| { |
| return false; |
| } |
| } |
| |
| const InternalFormat &formatInfo = GetSizedInternalFormatInfo(internalformat); |
| auto blockSizeOrErr = |
| formatInfo.computeCompressedImageSize(GL_UNSIGNED_BYTE, gl::Extents(width, height, 1)); |
| if (blockSizeOrErr.isError()) |
| { |
| context->handleError(blockSizeOrErr.getError()); |
| return false; |
| } |
| |
| if (imageSize < 0 || static_cast<GLuint>(imageSize) != blockSizeOrErr.getResult()) |
| { |
| context->handleError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateCompressedTexImage2DRobustANGLE(Context *context, |
| GLenum target, |
| GLint level, |
| GLenum internalformat, |
| GLsizei width, |
| GLsizei height, |
| GLint border, |
| GLsizei imageSize, |
| GLsizei dataSize, |
| const void *data) |
| { |
| if (!ValidateRobustCompressedTexImageBase(context, imageSize, dataSize)) |
| { |
| return false; |
| } |
| |
| return ValidateCompressedTexImage2D(context, target, level, internalformat, width, height, |
| border, imageSize, data); |
| } |
| bool ValidateCompressedTexSubImage2DRobustANGLE(Context *context, |
| GLenum target, |
| GLint level, |
| GLint xoffset, |
| GLint yoffset, |
| GLsizei width, |
| GLsizei height, |
| GLenum format, |
| GLsizei imageSize, |
| GLsizei dataSize, |
| const void *data) |
| { |
| if (!ValidateRobustCompressedTexImageBase(context, imageSize, dataSize)) |
| { |
| return false; |
| } |
| |
| return ValidateCompressedTexSubImage2D(context, target, level, xoffset, yoffset, width, height, |
| format, imageSize, data); |
| } |
| |
| bool ValidateCompressedTexSubImage2D(Context *context, |
| GLenum target, |
| GLint level, |
| GLint xoffset, |
| GLint yoffset, |
| GLsizei width, |
| GLsizei height, |
| GLenum format, |
| GLsizei imageSize, |
| const void *data) |
| { |
| if (context->getClientMajorVersion() < 3) |
| { |
| if (!ValidateES2TexImageParameters(context, target, level, GL_NONE, true, true, xoffset, |
| yoffset, width, height, 0, format, GL_NONE, -1, data)) |
| { |
| return false; |
| } |
| } |
| else |
| { |
| ASSERT(context->getClientMajorVersion() >= 3); |
| if (!ValidateES3TexImage2DParameters(context, target, level, GL_NONE, true, true, xoffset, |
| yoffset, 0, width, height, 1, 0, format, GL_NONE, -1, |
| data)) |
| { |
| return false; |
| } |
| } |
| |
| const InternalFormat &formatInfo = GetSizedInternalFormatInfo(format); |
| auto blockSizeOrErr = |
| formatInfo.computeCompressedImageSize(GL_UNSIGNED_BYTE, gl::Extents(width, height, 1)); |
| if (blockSizeOrErr.isError()) |
| { |
| context->handleError(blockSizeOrErr.getError()); |
| return false; |
| } |
| |
| if (imageSize < 0 || static_cast<GLuint>(imageSize) != blockSizeOrErr.getResult()) |
| { |
| context->handleError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateGetBufferPointervOES(Context *context, GLenum target, GLenum pname, void **params) |
| { |
| return ValidateGetBufferPointervBase(context, target, pname, nullptr, params); |
| } |
| |
| bool ValidateMapBufferOES(Context *context, GLenum target, GLenum access) |
| { |
| if (!context->getExtensions().mapBuffer) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Map buffer extension not available.")); |
| return false; |
| } |
| |
| if (!ValidBufferTarget(context, target)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid buffer target.")); |
| return false; |
| } |
| |
| Buffer *buffer = context->getGLState().getTargetBuffer(target); |
| |
| if (buffer == nullptr) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Attempted to map buffer object zero.")); |
| return false; |
| } |
| |
| if (access != GL_WRITE_ONLY_OES) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Non-write buffer mapping not supported.")); |
| return false; |
| } |
| |
| if (buffer->isMapped()) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Buffer is already mapped.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateUnmapBufferOES(Context *context, GLenum target) |
| { |
| if (!context->getExtensions().mapBuffer) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Map buffer extension not available.")); |
| return false; |
| } |
| |
| return ValidateUnmapBufferBase(context, target); |
| } |
| |
| bool ValidateMapBufferRangeEXT(Context *context, |
| GLenum target, |
| GLintptr offset, |
| GLsizeiptr length, |
| GLbitfield access) |
| { |
| if (!context->getExtensions().mapBufferRange) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "Map buffer range extension not available.")); |
| return false; |
| } |
| |
| return ValidateMapBufferRangeBase(context, target, offset, length, access); |
| } |
| |
| bool ValidateFlushMappedBufferRangeEXT(Context *context, |
| GLenum target, |
| GLintptr offset, |
| GLsizeiptr length) |
| { |
| if (!context->getExtensions().mapBufferRange) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "Map buffer range extension not available.")); |
| return false; |
| } |
| |
| return ValidateFlushMappedBufferRangeBase(context, target, offset, length); |
| } |
| |
| bool ValidateBindTexture(Context *context, GLenum target, GLuint texture) |
| { |
| Texture *textureObject = context->getTexture(texture); |
| if (textureObject && textureObject->getTarget() != target && texture != 0) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Invalid texture")); |
| return false; |
| } |
| |
| if (!context->getGLState().isBindGeneratesResourceEnabled() && |
| !context->isTextureGenerated(texture)) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Texture was not generated")); |
| return false; |
| } |
| |
| switch (target) |
| { |
| case GL_TEXTURE_2D: |
| case GL_TEXTURE_CUBE_MAP: |
| break; |
| |
| case GL_TEXTURE_3D: |
| case GL_TEXTURE_2D_ARRAY: |
| if (context->getClientMajorVersion() < 3) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "GLES 3.0 disabled")); |
| return false; |
| } |
| break; |
| |
| case GL_TEXTURE_2D_MULTISAMPLE: |
| if (context->getClientVersion() < Version(3, 1)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Context does not support GLES3.1")); |
| return false; |
| } |
| break; |
| |
| case GL_TEXTURE_EXTERNAL_OES: |
| if (!context->getExtensions().eglImageExternal && |
| !context->getExtensions().eglStreamConsumerExternal) |
| { |
| context->handleError( |
| Error(GL_INVALID_ENUM, "External texture extension not enabled")); |
| return false; |
| } |
| break; |
| default: |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid target")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateBindUniformLocationCHROMIUM(Context *context, |
| GLuint program, |
| GLint location, |
| const GLchar *name) |
| { |
| if (!context->getExtensions().bindUniformLocation) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "GL_CHROMIUM_bind_uniform_location is not available.")); |
| return false; |
| } |
| |
| Program *programObject = GetValidProgram(context, program); |
| if (!programObject) |
| { |
| return false; |
| } |
| |
| if (location < 0) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Location cannot be less than 0.")); |
| return false; |
| } |
| |
| const Caps &caps = context->getCaps(); |
| if (static_cast<size_t>(location) >= |
| (caps.maxVertexUniformVectors + caps.maxFragmentUniformVectors) * 4) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, |
| "Location must be less than (MAX_VERTEX_UNIFORM_VECTORS + " |
| "MAX_FRAGMENT_UNIFORM_VECTORS) * 4")); |
| return false; |
| } |
| |
| if (strncmp(name, "gl_", 3) == 0) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "Name cannot start with the reserved \"gl_\" prefix.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateCoverageModulationCHROMIUM(Context *context, GLenum components) |
| { |
| if (!context->getExtensions().framebufferMixedSamples) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "GL_CHROMIUM_framebuffer_mixed_samples is not available.")); |
| return false; |
| } |
| switch (components) |
| { |
| case GL_RGB: |
| case GL_RGBA: |
| case GL_ALPHA: |
| case GL_NONE: |
| break; |
| default: |
| context->handleError( |
| Error(GL_INVALID_ENUM, |
| "GLenum components is not one of GL_RGB, GL_RGBA, GL_ALPHA or GL_NONE.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| // CHROMIUM_path_rendering |
| |
| bool ValidateMatrix(Context *context, GLenum matrixMode, const GLfloat *matrix) |
| { |
| if (!context->getExtensions().pathRendering) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "GL_CHROMIUM_path_rendering is not available.")); |
| return false; |
| } |
| if (matrixMode != GL_PATH_MODELVIEW_CHROMIUM && matrixMode != GL_PATH_PROJECTION_CHROMIUM) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid matrix mode.")); |
| return false; |
| } |
| if (matrix == nullptr) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Invalid matrix.")); |
| return false; |
| } |
| return true; |
| } |
| |
| bool ValidateMatrixMode(Context *context, GLenum matrixMode) |
| { |
| if (!context->getExtensions().pathRendering) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "GL_CHROMIUM_path_rendering is not available.")); |
| return false; |
| } |
| if (matrixMode != GL_PATH_MODELVIEW_CHROMIUM && matrixMode != GL_PATH_PROJECTION_CHROMIUM) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid matrix mode.")); |
| return false; |
| } |
| return true; |
| } |
| |
| bool ValidateGenPaths(Context *context, GLsizei range) |
| { |
| if (!context->getExtensions().pathRendering) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "GL_CHROMIUM_path_rendering is not available.")); |
| return false; |
| } |
| |
| // range = 0 is undefined in NV_path_rendering. |
| // we add stricter semantic check here and require a non zero positive range. |
| if (range <= 0) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Invalid range.")); |
| return false; |
| } |
| |
| if (!angle::IsValueInRangeForNumericType<std::uint32_t>(range)) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Range overflow.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateDeletePaths(Context *context, GLuint path, GLsizei range) |
| { |
| if (!context->getExtensions().pathRendering) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "GL_CHROMIUM_path_rendering is not available.")); |
| return false; |
| } |
| |
| // range = 0 is undefined in NV_path_rendering. |
| // we add stricter semantic check here and require a non zero positive range. |
| if (range <= 0) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Invalid range.")); |
| return false; |
| } |
| |
| angle::CheckedNumeric<std::uint32_t> checkedRange(path); |
| checkedRange += range; |
| |
| if (!angle::IsValueInRangeForNumericType<std::uint32_t>(range) || !checkedRange.IsValid()) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Range overflow.")); |
| return false; |
| } |
| return true; |
| } |
| |
| bool ValidatePathCommands(Context *context, |
| GLuint path, |
| GLsizei numCommands, |
| const GLubyte *commands, |
| GLsizei numCoords, |
| GLenum coordType, |
| const void *coords) |
| { |
| if (!context->getExtensions().pathRendering) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "GL_CHROMIUM_path_rendering is not available.")); |
| return false; |
| } |
| if (!context->hasPath(path)) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "No such path object.")); |
| return false; |
| } |
| |
| if (numCommands < 0) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Invalid number of commands.")); |
| return false; |
| } |
| else if (numCommands > 0) |
| { |
| if (!commands) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "No commands array given.")); |
| return false; |
| } |
| } |
| |
| if (numCoords < 0) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Invalid number of coordinates.")); |
| return false; |
| } |
| else if (numCoords > 0) |
| { |
| if (!coords) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "No coordinate array given.")); |
| return false; |
| } |
| } |
| |
| std::uint32_t coordTypeSize = 0; |
| switch (coordType) |
| { |
| case GL_BYTE: |
| coordTypeSize = sizeof(GLbyte); |
| break; |
| |
| case GL_UNSIGNED_BYTE: |
| coordTypeSize = sizeof(GLubyte); |
| break; |
| |
| case GL_SHORT: |
| coordTypeSize = sizeof(GLshort); |
| break; |
| |
| case GL_UNSIGNED_SHORT: |
| coordTypeSize = sizeof(GLushort); |
| break; |
| |
| case GL_FLOAT: |
| coordTypeSize = sizeof(GLfloat); |
| break; |
| |
| default: |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid coordinate type.")); |
| return false; |
| } |
| |
| angle::CheckedNumeric<std::uint32_t> checkedSize(numCommands); |
| checkedSize += (coordTypeSize * numCoords); |
| if (!checkedSize.IsValid()) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Coord size overflow.")); |
| return false; |
| } |
| |
| // early return skips command data validation when it doesn't exist. |
| if (!commands) |
| return true; |
| |
| GLsizei expectedNumCoords = 0; |
| for (GLsizei i = 0; i < numCommands; ++i) |
| { |
| switch (commands[i]) |
| { |
| case GL_CLOSE_PATH_CHROMIUM: // no coordinates. |
| break; |
| case GL_MOVE_TO_CHROMIUM: |
| case GL_LINE_TO_CHROMIUM: |
| expectedNumCoords += 2; |
| break; |
| case GL_QUADRATIC_CURVE_TO_CHROMIUM: |
| expectedNumCoords += 4; |
| break; |
| case GL_CUBIC_CURVE_TO_CHROMIUM: |
| expectedNumCoords += 6; |
| break; |
| case GL_CONIC_CURVE_TO_CHROMIUM: |
| expectedNumCoords += 5; |
| break; |
| default: |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid command.")); |
| return false; |
| } |
| } |
| if (expectedNumCoords != numCoords) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Invalid number of coordinates.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateSetPathParameter(Context *context, GLuint path, GLenum pname, GLfloat value) |
| { |
| if (!context->getExtensions().pathRendering) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "GL_CHROMIUM_path_rendering is not available.")); |
| return false; |
| } |
| if (!context->hasPath(path)) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "No such path object.")); |
| return false; |
| } |
| |
| switch (pname) |
| { |
| case GL_PATH_STROKE_WIDTH_CHROMIUM: |
| if (value < 0.0f) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Invalid stroke width.")); |
| return false; |
| } |
| break; |
| case GL_PATH_END_CAPS_CHROMIUM: |
| switch (static_cast<GLenum>(value)) |
| { |
| case GL_FLAT_CHROMIUM: |
| case GL_SQUARE_CHROMIUM: |
| case GL_ROUND_CHROMIUM: |
| break; |
| default: |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid end caps.")); |
| return false; |
| } |
| break; |
| case GL_PATH_JOIN_STYLE_CHROMIUM: |
| switch (static_cast<GLenum>(value)) |
| { |
| case GL_MITER_REVERT_CHROMIUM: |
| case GL_BEVEL_CHROMIUM: |
| case GL_ROUND_CHROMIUM: |
| break; |
| default: |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid join style.")); |
| return false; |
| } |
| case GL_PATH_MITER_LIMIT_CHROMIUM: |
| if (value < 0.0f) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Invalid miter limit.")); |
| return false; |
| } |
| break; |
| |
| case GL_PATH_STROKE_BOUND_CHROMIUM: |
| // no errors, only clamping. |
| break; |
| |
| default: |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid path parameter.")); |
| return false; |
| } |
| return true; |
| } |
| |
| bool ValidateGetPathParameter(Context *context, GLuint path, GLenum pname, GLfloat *value) |
| { |
| if (!context->getExtensions().pathRendering) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "GL_CHROMIUM_path_rendering is not available.")); |
| return false; |
| } |
| |
| if (!context->hasPath(path)) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "No such path object.")); |
| return false; |
| } |
| if (!value) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "No value array.")); |
| return false; |
| } |
| |
| switch (pname) |
| { |
| case GL_PATH_STROKE_WIDTH_CHROMIUM: |
| case GL_PATH_END_CAPS_CHROMIUM: |
| case GL_PATH_JOIN_STYLE_CHROMIUM: |
| case GL_PATH_MITER_LIMIT_CHROMIUM: |
| case GL_PATH_STROKE_BOUND_CHROMIUM: |
| break; |
| |
| default: |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid path parameter.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidatePathStencilFunc(Context *context, GLenum func, GLint ref, GLuint mask) |
| { |
| if (!context->getExtensions().pathRendering) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "GL_CHROMIUM_path_rendering is not available.")); |
| return false; |
| } |
| |
| switch (func) |
| { |
| case GL_NEVER: |
| case GL_ALWAYS: |
| case GL_LESS: |
| case GL_LEQUAL: |
| case GL_EQUAL: |
| case GL_GEQUAL: |
| case GL_GREATER: |
| case GL_NOTEQUAL: |
| break; |
| default: |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid stencil function.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| // Note that the spec specifies that for the path drawing commands |
| // if the path object is not an existing path object the command |
| // does nothing and no error is generated. |
| // However if the path object exists but has not been specified any |
| // commands then an error is generated. |
| |
| bool ValidateStencilFillPath(Context *context, GLuint path, GLenum fillMode, GLuint mask) |
| { |
| if (!context->getExtensions().pathRendering) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "GL_CHROMIUM_path_rendering is not available.")); |
| return false; |
| } |
| if (context->hasPath(path) && !context->hasPathData(path)) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "No such path object.")); |
| return false; |
| } |
| |
| switch (fillMode) |
| { |
| case GL_COUNT_UP_CHROMIUM: |
| case GL_COUNT_DOWN_CHROMIUM: |
| break; |
| default: |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid fill mode.")); |
| return false; |
| } |
| |
| if (!isPow2(mask + 1)) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Invalid stencil bit mask.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateStencilStrokePath(Context *context, GLuint path, GLint reference, GLuint mask) |
| { |
| if (!context->getExtensions().pathRendering) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "GL_CHROMIUM_path_rendering is not available.")); |
| return false; |
| } |
| if (context->hasPath(path) && !context->hasPathData(path)) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "No such path or path has no data.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateCoverPath(Context *context, GLuint path, GLenum coverMode) |
| { |
| if (!context->getExtensions().pathRendering) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "GL_CHROMIUM_path_rendering is not available.")); |
| return false; |
| } |
| if (context->hasPath(path) && !context->hasPathData(path)) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "No such path object.")); |
| return false; |
| } |
| |
| switch (coverMode) |
| { |
| case GL_CONVEX_HULL_CHROMIUM: |
| case GL_BOUNDING_BOX_CHROMIUM: |
| break; |
| default: |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid cover mode.")); |
| return false; |
| } |
| return true; |
| } |
| |
| bool ValidateStencilThenCoverFillPath(Context *context, |
| GLuint path, |
| GLenum fillMode, |
| GLuint mask, |
| GLenum coverMode) |
| { |
| return ValidateStencilFillPath(context, path, fillMode, mask) && |
| ValidateCoverPath(context, path, coverMode); |
| } |
| |
| bool ValidateStencilThenCoverStrokePath(Context *context, |
| GLuint path, |
| GLint reference, |
| GLuint mask, |
| GLenum coverMode) |
| { |
| return ValidateStencilStrokePath(context, path, reference, mask) && |
| ValidateCoverPath(context, path, coverMode); |
| } |
| |
| bool ValidateIsPath(Context *context) |
| { |
| if (!context->getExtensions().pathRendering) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "GL_CHROMIUM_path_rendering is not available.")); |
| return false; |
| } |
| return true; |
| } |
| |
| bool ValidateCoverFillPathInstanced(Context *context, |
| GLsizei numPaths, |
| GLenum pathNameType, |
| const void *paths, |
| GLuint pathBase, |
| GLenum coverMode, |
| GLenum transformType, |
| const GLfloat *transformValues) |
| { |
| if (!ValidateInstancedPathParameters(context, numPaths, pathNameType, paths, pathBase, |
| transformType, transformValues)) |
| return false; |
| |
| switch (coverMode) |
| { |
| case GL_CONVEX_HULL_CHROMIUM: |
| case GL_BOUNDING_BOX_CHROMIUM: |
| case GL_BOUNDING_BOX_OF_BOUNDING_BOXES_CHROMIUM: |
| break; |
| default: |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid cover mode.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateCoverStrokePathInstanced(Context *context, |
| GLsizei numPaths, |
| GLenum pathNameType, |
| const void *paths, |
| GLuint pathBase, |
| GLenum coverMode, |
| GLenum transformType, |
| const GLfloat *transformValues) |
| { |
| if (!ValidateInstancedPathParameters(context, numPaths, pathNameType, paths, pathBase, |
| transformType, transformValues)) |
| return false; |
| |
| switch (coverMode) |
| { |
| case GL_CONVEX_HULL_CHROMIUM: |
| case GL_BOUNDING_BOX_CHROMIUM: |
| case GL_BOUNDING_BOX_OF_BOUNDING_BOXES_CHROMIUM: |
| break; |
| default: |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid cover mode.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateStencilFillPathInstanced(Context *context, |
| GLsizei numPaths, |
| GLenum pathNameType, |
| const void *paths, |
| GLuint pathBase, |
| GLenum fillMode, |
| GLuint mask, |
| GLenum transformType, |
| const GLfloat *transformValues) |
| { |
| |
| if (!ValidateInstancedPathParameters(context, numPaths, pathNameType, paths, pathBase, |
| transformType, transformValues)) |
| return false; |
| |
| switch (fillMode) |
| { |
| case GL_COUNT_UP_CHROMIUM: |
| case GL_COUNT_DOWN_CHROMIUM: |
| break; |
| default: |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid fill mode.")); |
| return false; |
| } |
| if (!isPow2(mask + 1)) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Invalid stencil bit mask.")); |
| return false; |
| } |
| return true; |
| } |
| |
| bool ValidateStencilStrokePathInstanced(Context *context, |
| GLsizei numPaths, |
| GLenum pathNameType, |
| const void *paths, |
| GLuint pathBase, |
| GLint reference, |
| GLuint mask, |
| GLenum transformType, |
| const GLfloat *transformValues) |
| { |
| if (!ValidateInstancedPathParameters(context, numPaths, pathNameType, paths, pathBase, |
| transformType, transformValues)) |
| return false; |
| |
| // no more validation here. |
| |
| return true; |
| } |
| |
| bool ValidateStencilThenCoverFillPathInstanced(Context *context, |
| GLsizei numPaths, |
| GLenum pathNameType, |
| const void *paths, |
| GLuint pathBase, |
| GLenum fillMode, |
| GLuint mask, |
| GLenum coverMode, |
| GLenum transformType, |
| const GLfloat *transformValues) |
| { |
| if (!ValidateInstancedPathParameters(context, numPaths, pathNameType, paths, pathBase, |
| transformType, transformValues)) |
| return false; |
| |
| switch (coverMode) |
| { |
| case GL_CONVEX_HULL_CHROMIUM: |
| case GL_BOUNDING_BOX_CHROMIUM: |
| case GL_BOUNDING_BOX_OF_BOUNDING_BOXES_CHROMIUM: |
| break; |
| default: |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid cover mode.")); |
| return false; |
| } |
| |
| switch (fillMode) |
| { |
| case GL_COUNT_UP_CHROMIUM: |
| case GL_COUNT_DOWN_CHROMIUM: |
| break; |
| default: |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid fill mode.")); |
| return false; |
| } |
| if (!isPow2(mask + 1)) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Invalid stencil bit mask.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateStencilThenCoverStrokePathInstanced(Context *context, |
| GLsizei numPaths, |
| GLenum pathNameType, |
| const void *paths, |
| GLuint pathBase, |
| GLint reference, |
| GLuint mask, |
| GLenum coverMode, |
| GLenum transformType, |
| const GLfloat *transformValues) |
| { |
| if (!ValidateInstancedPathParameters(context, numPaths, pathNameType, paths, pathBase, |
| transformType, transformValues)) |
| return false; |
| |
| switch (coverMode) |
| { |
| case GL_CONVEX_HULL_CHROMIUM: |
| case GL_BOUNDING_BOX_CHROMIUM: |
| case GL_BOUNDING_BOX_OF_BOUNDING_BOXES_CHROMIUM: |
| break; |
| default: |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid cover mode.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateBindFragmentInputLocation(Context *context, |
| GLuint program, |
| GLint location, |
| const GLchar *name) |
| { |
| if (!context->getExtensions().pathRendering) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "GL_CHROMIUM_path_rendering is not available.")); |
| return false; |
| } |
| |
| const GLint MaxLocation = context->getCaps().maxVaryingVectors * 4; |
| if (location >= MaxLocation) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Location exceeds max varying.")); |
| return false; |
| } |
| |
| const auto *programObject = context->getProgram(program); |
| if (!programObject) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "No such program.")); |
| return false; |
| } |
| |
| if (!name) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "No name given.")); |
| return false; |
| } |
| |
| if (angle::BeginsWith(name, "gl_")) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Cannot bind a built-in variable.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateProgramPathFragmentInputGen(Context *context, |
| GLuint program, |
| GLint location, |
| GLenum genMode, |
| GLint components, |
| const GLfloat *coeffs) |
| { |
| if (!context->getExtensions().pathRendering) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "GL_CHROMIUM_path_rendering is not available.")); |
| return false; |
| } |
| |
| const auto *programObject = context->getProgram(program); |
| if (!programObject || programObject->isFlaggedForDeletion()) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "No such program.")); |
| return false; |
| } |
| |
| if (!programObject->isLinked()) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Program is not linked.")); |
| return false; |
| } |
| |
| switch (genMode) |
| { |
| case GL_NONE: |
| if (components != 0) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Invalid components.")); |
| return false; |
| } |
| break; |
| |
| case GL_OBJECT_LINEAR_CHROMIUM: |
| case GL_EYE_LINEAR_CHROMIUM: |
| case GL_CONSTANT_CHROMIUM: |
| if (components < 1 || components > 4) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Invalid components.")); |
| return false; |
| } |
| if (!coeffs) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "No coefficients array given.")); |
| return false; |
| } |
| break; |
| |
| default: |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid gen mode.")); |
| return false; |
| } |
| |
| // If the location is -1 then the command is silently ignored |
| // and no further validation is needed. |
| if (location == -1) |
| return true; |
| |
| const auto &binding = programObject->getFragmentInputBindingInfo(location); |
| |
| if (!binding.valid) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "No such binding.")); |
| return false; |
| } |
| |
| if (binding.type != GL_NONE) |
| { |
| GLint expectedComponents = 0; |
| switch (binding.type) |
| { |
| case GL_FLOAT: |
| expectedComponents = 1; |
| break; |
| case GL_FLOAT_VEC2: |
| expectedComponents = 2; |
| break; |
| case GL_FLOAT_VEC3: |
| expectedComponents = 3; |
| break; |
| case GL_FLOAT_VEC4: |
| expectedComponents = 4; |
| break; |
| default: |
| context->handleError( |
| Error(GL_INVALID_OPERATION, |
| "Fragment input type is not a floating point scalar or vector.")); |
| return false; |
| } |
| if (expectedComponents != components && genMode != GL_NONE) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Unexpected number of components")); |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| bool ValidateCopyTextureCHROMIUM(Context *context, |
| GLuint sourceId, |
| GLint sourceLevel, |
| GLenum destTarget, |
| GLuint destId, |
| GLint destLevel, |
| GLint internalFormat, |
| GLenum destType, |
| GLboolean unpackFlipY, |
| GLboolean unpackPremultiplyAlpha, |
| GLboolean unpackUnmultiplyAlpha) |
| { |
| if (!context->getExtensions().copyTexture) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "GL_CHROMIUM_copy_texture extension not available.")); |
| return false; |
| } |
| |
| const gl::Texture *source = context->getTexture(sourceId); |
| if (source == nullptr) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, "Source texture is not a valid texture object.")); |
| return false; |
| } |
| |
| if (!IsValidCopyTextureSourceTarget(context, source->getTarget())) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Source texture a valid texture type.")); |
| return false; |
| } |
| |
| GLenum sourceTarget = source->getTarget(); |
| ASSERT(sourceTarget != GL_TEXTURE_CUBE_MAP); |
| if (source->getWidth(sourceTarget, 0) == 0 || source->getHeight(sourceTarget, 0) == 0) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, "Level 0 of the source texture must be defined.")); |
| return false; |
| } |
| |
| const gl::InternalFormat &sourceFormat = *source->getFormat(sourceTarget, 0).info; |
| if (!IsValidCopyTextureFormat(context, sourceFormat.format)) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "Source texture internal format is invalid.")); |
| return false; |
| } |
| |
| const gl::Texture *dest = context->getTexture(destId); |
| if (dest == nullptr) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, "Destination texture is not a valid texture object.")); |
| return false; |
| } |
| |
| if (!IsValidCopyTextureDestinationTarget(context, dest->getTarget())) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Destination texture a valid texture type.")); |
| return false; |
| } |
| |
| if (!IsValidCopyTextureDestinationFormatType(context, internalFormat, destType)) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, |
| "Destination internal format and type combination is not valid.")); |
| return false; |
| } |
| |
| if (dest->getImmutableFormat()) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Destination texture is immutable.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateCopySubTextureCHROMIUM(Context *context, |
| GLuint sourceId, |
| GLint sourceLevel, |
| GLenum destTarget, |
| GLuint destId, |
| GLint destLevel, |
| GLint xoffset, |
| GLint yoffset, |
| GLint x, |
| GLint y, |
| GLsizei width, |
| GLsizei height, |
| GLboolean unpackFlipY, |
| GLboolean unpackPremultiplyAlpha, |
| GLboolean unpackUnmultiplyAlpha) |
| { |
| if (!context->getExtensions().copyTexture) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "GL_CHROMIUM_copy_texture extension not available.")); |
| return false; |
| } |
| |
| const gl::Texture *source = context->getTexture(sourceId); |
| if (source == nullptr) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, "Source texture is not a valid texture object.")); |
| return false; |
| } |
| |
| if (!IsValidCopyTextureSourceTarget(context, source->getTarget())) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Source texture a valid texture type.")); |
| return false; |
| } |
| |
| GLenum sourceTarget = source->getTarget(); |
| ASSERT(sourceTarget != GL_TEXTURE_CUBE_MAP); |
| if (source->getWidth(sourceTarget, 0) == 0 || source->getHeight(sourceTarget, 0) == 0) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, "Level 0 of the source texture must be defined.")); |
| return false; |
| } |
| |
| if (x < 0 || y < 0) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "x and y cannot be negative.")); |
| return false; |
| } |
| |
| if (width < 0 || height < 0) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "width and height cannot be negative.")); |
| return false; |
| } |
| |
| if (static_cast<size_t>(x + width) > source->getWidth(sourceTarget, 0) || |
| static_cast<size_t>(y + height) > source->getHeight(sourceTarget, 0)) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, "Source texture not large enough to copy from.")); |
| return false; |
| } |
| |
| const gl::Format &sourceFormat = source->getFormat(sourceTarget, 0); |
| if (!IsValidCopyTextureFormat(context, sourceFormat.info->internalFormat)) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "Source texture internal format is invalid.")); |
| return false; |
| } |
| |
| const gl::Texture *dest = context->getTexture(destId); |
| if (dest == nullptr) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, "Destination texture is not a valid texture object.")); |
| return false; |
| } |
| |
| if (!IsValidCopyTextureDestinationTarget(context, dest->getTarget())) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Destination texture a valid texture type.")); |
| return false; |
| } |
| |
| ASSERT(destTarget != GL_TEXTURE_CUBE_MAP); |
| if (dest->getWidth(sourceTarget, 0) == 0 || dest->getHeight(sourceTarget, 0) == 0) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, "Level 0 of the destination texture must be defined.")); |
| return false; |
| } |
| |
| const gl::InternalFormat &destFormat = *dest->getFormat(destTarget, 0).info; |
| if (!IsValidCopyTextureDestinationFormatType(context, destFormat.format, destFormat.type)) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, |
| "Destination internal format and type combination is not valid.")); |
| return false; |
| } |
| |
| if (xoffset < 0 || yoffset < 0) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "xoffset and yoffset cannot be negative.")); |
| return false; |
| } |
| |
| if (static_cast<size_t>(xoffset + width) > dest->getWidth(destTarget, 0) || |
| static_cast<size_t>(yoffset + height) > dest->getHeight(destTarget, 0)) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, "Destination texture not large enough to copy to.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateCompressedCopyTextureCHROMIUM(Context *context, GLuint sourceId, GLuint destId) |
| { |
| if (!context->getExtensions().copyCompressedTexture) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, |
| "GL_CHROMIUM_copy_compressed_texture extension not available.")); |
| return false; |
| } |
| |
| const gl::Texture *source = context->getTexture(sourceId); |
| if (source == nullptr) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, "Source texture is not a valid texture object.")); |
| return false; |
| } |
| |
| if (source->getTarget() != GL_TEXTURE_2D) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, "Source texture must be of type GL_TEXTURE_2D.")); |
| return false; |
| } |
| |
| if (source->getWidth(GL_TEXTURE_2D, 0) == 0 || source->getHeight(GL_TEXTURE_2D, 0) == 0) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Source texture must level 0 defined.")); |
| return false; |
| } |
| |
| const gl::Format &sourceFormat = source->getFormat(GL_TEXTURE_2D, 0); |
| if (!sourceFormat.info->compressed) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "Source texture must have a compressed internal format.")); |
| return false; |
| } |
| |
| const gl::Texture *dest = context->getTexture(destId); |
| if (dest == nullptr) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, "Destination texture is not a valid texture object.")); |
| return false; |
| } |
| |
| if (dest->getTarget() != GL_TEXTURE_2D) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, "Destination texture must be of type GL_TEXTURE_2D.")); |
| return false; |
| } |
| |
| if (dest->getImmutableFormat()) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Destination cannot be immutable.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateCreateShader(Context *context, GLenum type) |
| { |
| switch (type) |
| { |
| case GL_VERTEX_SHADER: |
| case GL_FRAGMENT_SHADER: |
| break; |
| |
| case GL_COMPUTE_SHADER: |
| if (context->getClientVersion() < Version(3, 1)) |
| { |
| context->handleError( |
| Error(GL_INVALID_ENUM, "GL_COMPUTE_SHADER requires OpenGL ES 3.1.")); |
| return false; |
| } |
| break; |
| |
| default: |
| context->handleError(Error(GL_INVALID_ENUM, "Unknown shader type.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateBufferData(ValidationContext *context, |
| GLenum target, |
| GLsizeiptr size, |
| const void *data, |
| GLenum usage) |
| { |
| if (size < 0) |
| { |
| context->handleError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| |
| switch (usage) |
| { |
| case GL_STREAM_DRAW: |
| case GL_STATIC_DRAW: |
| case GL_DYNAMIC_DRAW: |
| break; |
| |
| case GL_STREAM_READ: |
| case GL_STREAM_COPY: |
| case GL_STATIC_READ: |
| case GL_STATIC_COPY: |
| case GL_DYNAMIC_READ: |
| case GL_DYNAMIC_COPY: |
| if (context->getClientMajorVersion() < 3) |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| |
| default: |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| |
| if (!ValidBufferTarget(context, target)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| |
| Buffer *buffer = context->getGLState().getTargetBuffer(target); |
| |
| if (!buffer) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateBufferSubData(ValidationContext *context, |
| GLenum target, |
| GLintptr offset, |
| GLsizeiptr size, |
| const void *data) |
| { |
| if (size < 0 || offset < 0) |
| { |
| context->handleError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| |
| if (!ValidBufferTarget(context, target)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| |
| Buffer *buffer = context->getGLState().getTargetBuffer(target); |
| |
| if (!buffer) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| |
| if (buffer->isMapped()) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| |
| // Check for possible overflow of size + offset |
| angle::CheckedNumeric<size_t> checkedSize(size); |
| checkedSize += offset; |
| if (!checkedSize.IsValid()) |
| { |
| context->handleError(Error(GL_OUT_OF_MEMORY)); |
| return false; |
| } |
| |
| if (size + offset > buffer->getSize()) |
| { |
| context->handleError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateRequestExtensionANGLE(ValidationContext *context, const GLchar *name) |
| { |
| if (!context->getExtensions().requestExtension) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "GL_ANGLE_request_extension is not available.")); |
| return false; |
| } |
| |
| const ExtensionInfoMap &extensionInfos = GetExtensionInfoMap(); |
| auto extension = extensionInfos.find(name); |
| if (extension == extensionInfos.end() || !extension->second.Requestable) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Extension %s is not requestable.", name)); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateActiveTexture(ValidationContext *context, GLenum texture) |
| { |
| if (texture < GL_TEXTURE0 || |
| texture > GL_TEXTURE0 + context->getCaps().maxCombinedTextureImageUnits - 1) |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateAttachShader(ValidationContext *context, GLuint program, GLuint shader) |
| { |
| Program *programObject = GetValidProgram(context, program); |
| if (!programObject) |
| { |
| return false; |
| } |
| |
| Shader *shaderObject = GetValidShader(context, shader); |
| if (!shaderObject) |
| { |
| return false; |
| } |
| |
| switch (shaderObject->getType()) |
| { |
| case GL_VERTEX_SHADER: |
| { |
| if (programObject->getAttachedVertexShader()) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| } |
| case GL_FRAGMENT_SHADER: |
| { |
| if (programObject->getAttachedFragmentShader()) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| } |
| case GL_COMPUTE_SHADER: |
| { |
| if (programObject->getAttachedComputeShader()) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| break; |
| } |
| default: |
| UNREACHABLE(); |
| break; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateBindAttribLocation(ValidationContext *context, |
| GLuint program, |
| GLuint index, |
| const GLchar *name) |
| { |
| if (index >= MAX_VERTEX_ATTRIBS) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Index exceeds MAX_VERTEX_ATTRIBS")); |
| return false; |
| } |
| |
| if (strncmp(name, "gl_", 3) == 0) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Cannot Bind built-in attributes")); |
| return false; |
| } |
| |
| return GetValidProgram(context, program) != nullptr; |
| } |
| |
| bool ValidateBindBuffer(ValidationContext *context, GLenum target, GLuint buffer) |
| { |
| if (!ValidBufferTarget(context, target)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid Buffer target")); |
| return false; |
| } |
| |
| if (!context->getGLState().isBindGeneratesResourceEnabled() && |
| !context->isBufferGenerated(buffer)) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Buffer was not generated")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateBindFramebuffer(ValidationContext *context, GLenum target, GLuint framebuffer) |
| { |
| if (!ValidFramebufferTarget(target)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid Framebuffer target")); |
| return false; |
| } |
| |
| if (!context->getGLState().isBindGeneratesResourceEnabled() && |
| !context->isFramebufferGenerated(framebuffer)) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Framebuffer was not generated")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateBindRenderbuffer(ValidationContext *context, GLenum target, GLuint renderbuffer) |
| { |
| if (target != GL_RENDERBUFFER) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid Renderbuffer target")); |
| return false; |
| } |
| |
| if (!context->getGLState().isBindGeneratesResourceEnabled() && |
| !context->isRenderbufferGenerated(renderbuffer)) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Renderbuffer was not generated")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| static bool ValidBlendEquationMode(GLenum mode) |
| { |
| switch (mode) |
| { |
| case GL_FUNC_ADD: |
| case GL_FUNC_SUBTRACT: |
| case GL_FUNC_REVERSE_SUBTRACT: |
| case GL_MIN: |
| case GL_MAX: |
| return true; |
| |
| default: |
| return false; |
| } |
| } |
| |
| bool ValidateBlendColor(ValidationContext *context, |
| GLfloat red, |
| GLfloat green, |
| GLfloat blue, |
| GLfloat alpha) |
| { |
| return true; |
| } |
| |
| bool ValidateBlendEquation(ValidationContext *context, GLenum mode) |
| { |
| if (!ValidBlendEquationMode(mode)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid blend equation")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateBlendEquationSeparate(ValidationContext *context, GLenum modeRGB, GLenum modeAlpha) |
| { |
| if (!ValidBlendEquationMode(modeRGB)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid RGB blend equation")); |
| return false; |
| } |
| |
| if (!ValidBlendEquationMode(modeAlpha)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid alpha blend equation")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateBlendFunc(ValidationContext *context, GLenum sfactor, GLenum dfactor) |
| { |
| return ValidateBlendFuncSeparate(context, sfactor, dfactor, sfactor, dfactor); |
| } |
| |
| static bool ValidSrcBlendFunc(GLenum srcBlend) |
| { |
| switch (srcBlend) |
| { |
| case GL_ZERO: |
| case GL_ONE: |
| case GL_SRC_COLOR: |
| case GL_ONE_MINUS_SRC_COLOR: |
| case GL_DST_COLOR: |
| case GL_ONE_MINUS_DST_COLOR: |
| case GL_SRC_ALPHA: |
| case GL_ONE_MINUS_SRC_ALPHA: |
| case GL_DST_ALPHA: |
| case GL_ONE_MINUS_DST_ALPHA: |
| case GL_CONSTANT_COLOR: |
| case GL_ONE_MINUS_CONSTANT_COLOR: |
| case GL_CONSTANT_ALPHA: |
| case GL_ONE_MINUS_CONSTANT_ALPHA: |
| case GL_SRC_ALPHA_SATURATE: |
| return true; |
| |
| default: |
| return false; |
| } |
| } |
| |
| static bool ValidDstBlendFunc(GLenum dstBlend, GLint contextMajorVersion) |
| { |
| switch (dstBlend) |
| { |
| case GL_ZERO: |
| case GL_ONE: |
| case GL_SRC_COLOR: |
| case GL_ONE_MINUS_SRC_COLOR: |
| case GL_DST_COLOR: |
| case GL_ONE_MINUS_DST_COLOR: |
| case GL_SRC_ALPHA: |
| case GL_ONE_MINUS_SRC_ALPHA: |
| case GL_DST_ALPHA: |
| case GL_ONE_MINUS_DST_ALPHA: |
| case GL_CONSTANT_COLOR: |
| case GL_ONE_MINUS_CONSTANT_COLOR: |
| case GL_CONSTANT_ALPHA: |
| case GL_ONE_MINUS_CONSTANT_ALPHA: |
| return true; |
| |
| case GL_SRC_ALPHA_SATURATE: |
| return (contextMajorVersion >= 3); |
| |
| default: |
| return false; |
| } |
| } |
| |
| bool ValidateBlendFuncSeparate(ValidationContext *context, |
| GLenum srcRGB, |
| GLenum dstRGB, |
| GLenum srcAlpha, |
| GLenum dstAlpha) |
| { |
| if (!ValidSrcBlendFunc(srcRGB)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid blend function")); |
| return false; |
| } |
| |
| if (!ValidDstBlendFunc(dstRGB, context->getClientMajorVersion())) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid blend function")); |
| return false; |
| } |
| |
| if (!ValidSrcBlendFunc(srcAlpha)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid blend function")); |
| return false; |
| } |
| |
| if (!ValidDstBlendFunc(dstAlpha, context->getClientMajorVersion())) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid blend function")); |
| return false; |
| } |
| |
| if (context->getLimitations().noSimultaneousConstantColorAndAlphaBlendFunc || |
| context->getExtensions().webglCompatibility) |
| { |
| bool constantColorUsed = |
| (srcRGB == GL_CONSTANT_COLOR || srcRGB == GL_ONE_MINUS_CONSTANT_COLOR || |
| dstRGB == GL_CONSTANT_COLOR || dstRGB == GL_ONE_MINUS_CONSTANT_COLOR); |
| |
| bool constantAlphaUsed = |
| (srcRGB == GL_CONSTANT_ALPHA || srcRGB == GL_ONE_MINUS_CONSTANT_ALPHA || |
| dstRGB == GL_CONSTANT_ALPHA || dstRGB == GL_ONE_MINUS_CONSTANT_ALPHA); |
| |
| if (constantColorUsed && constantAlphaUsed) |
| { |
| const char *msg; |
| if (context->getExtensions().webglCompatibility) |
| { |
| msg = |
| "Invalid simultaneous use of GL_CONSTANT_ALPHA/GL_ONE_MINUS_CONSTANT_ALPHA and " |
| "GL_CONSTANT_COLOR/GL_ONE_MINUS_CONSTANT_COLOR."; |
| } |
| else |
| { |
| msg = |
| "Simultaneous use of GL_CONSTANT_ALPHA/GL_ONE_MINUS_CONSTANT_ALPHA and " |
| "GL_CONSTANT_COLOR/GL_ONE_MINUS_CONSTANT_COLOR not supported by this " |
| "implementation."; |
| ERR() << msg; |
| } |
| context->handleError(Error(GL_INVALID_OPERATION, msg)); |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| bool ValidateGetString(Context *context, GLenum name) |
| { |
| switch (name) |
| { |
| case GL_VENDOR: |
| case GL_RENDERER: |
| case GL_VERSION: |
| case GL_SHADING_LANGUAGE_VERSION: |
| case GL_EXTENSIONS: |
| break; |
| |
| case GL_REQUESTABLE_EXTENSIONS_ANGLE: |
| if (!context->getExtensions().requestExtension) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid name.")); |
| return false; |
| } |
| break; |
| |
| default: |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid name.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateLineWidth(ValidationContext *context, GLfloat width) |
| { |
| if (width <= 0.0f || isNaN(width)) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Invalid width value.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateVertexAttribPointer(ValidationContext *context, |
| GLuint index, |
| GLint size, |
| GLenum type, |
| GLboolean normalized, |
| GLsizei stride, |
| const void *ptr) |
| { |
| if (!ValidateVertexFormatBase(context, index, size, type, false)) |
| { |
| return false; |
| } |
| |
| if (stride < 0) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "stride cannot be negative.")); |
| return false; |
| } |
| |
| const Caps &caps = context->getCaps(); |
| if (context->getClientVersion() >= ES_3_1) |
| { |
| if (stride > caps.maxVertexAttribStride) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, "stride cannot be greater than MAX_VERTEX_ATTRIB_STRIDE.")); |
| return false; |
| } |
| |
| if (index >= caps.maxVertexAttribBindings) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, "index must be smaller than MAX_VERTEX_ATTRIB_BINDINGS.")); |
| return false; |
| } |
| } |
| |
| // [OpenGL ES 3.0.2] Section 2.8 page 24: |
| // An INVALID_OPERATION error is generated when a non-zero vertex array object |
| // is bound, zero is bound to the ARRAY_BUFFER buffer object binding point, |
| // and the pointer argument is not NULL. |
| bool nullBufferAllowed = context->getGLState().areClientArraysEnabled() && |
| context->getGLState().getVertexArray()->id() == 0; |
| if (!nullBufferAllowed && context->getGLState().getArrayBufferId() == 0 && ptr != nullptr) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, |
| "Client data cannot be used with a non-default vertex array object.")); |
| return false; |
| } |
| |
| if (context->getExtensions().webglCompatibility) |
| { |
| // WebGL 1.0 [Section 6.14] Fixed point support |
| // The WebGL API does not support the GL_FIXED data type. |
| if (type == GL_FIXED) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "GL_FIXED is not supported in WebGL.")); |
| return false; |
| } |
| |
| if (!ValidateWebGLVertexAttribPointer(context, type, normalized, stride, ptr, false)) |
| { |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| bool ValidateDepthRangef(ValidationContext *context, GLfloat zNear, GLfloat zFar) |
| { |
| if (context->getExtensions().webglCompatibility && zNear > zFar) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Depth near > far.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateRenderbufferStorage(ValidationContext *context, |
| GLenum target, |
| GLenum internalformat, |
| GLsizei width, |
| GLsizei height) |
| { |
| return ValidateRenderbufferStorageParametersBase(context, target, 0, internalformat, width, |
| height); |
| } |
| |
| bool ValidateRenderbufferStorageMultisampleANGLE(ValidationContext *context, |
| GLenum target, |
| GLsizei samples, |
| GLenum internalformat, |
| GLsizei width, |
| GLsizei height) |
| { |
| if (!context->getExtensions().framebufferMultisample) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "GL_ANGLE_framebuffer_multisample not available")); |
| return false; |
| } |
| |
| // ANGLE_framebuffer_multisample states that the value of samples must be less than or equal |
| // to MAX_SAMPLES_ANGLE (Context::getCaps().maxSamples) otherwise GL_INVALID_OPERATION is |
| // generated. |
| if (static_cast<GLuint>(samples) > context->getCaps().maxSamples) |
| { |
| context->handleError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| |
| // ANGLE_framebuffer_multisample states GL_OUT_OF_MEMORY is generated on a failure to create |
| // the specified storage. This is different than ES 3.0 in which a sample number higher |
| // than the maximum sample number supported by this format generates a GL_INVALID_VALUE. |
| // The TextureCaps::getMaxSamples method is only guarenteed to be valid when the context is ES3. |
| if (context->getClientMajorVersion() >= 3) |
| { |
| const TextureCaps &formatCaps = context->getTextureCaps().get(internalformat); |
| if (static_cast<GLuint>(samples) > formatCaps.getMaxSamples()) |
| { |
| context->handleError(Error(GL_OUT_OF_MEMORY)); |
| return false; |
| } |
| } |
| |
| return ValidateRenderbufferStorageParametersBase(context, target, samples, internalformat, |
| width, height); |
| } |
| |
| bool ValidateCheckFramebufferStatus(ValidationContext *context, GLenum target) |
| { |
| if (!ValidFramebufferTarget(target)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid Framebuffer target")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateClearColor(ValidationContext *context, |
| GLfloat red, |
| GLfloat green, |
| GLfloat blue, |
| GLfloat alpha) |
| { |
| return true; |
| } |
| |
| bool ValidateClearDepthf(ValidationContext *context, GLfloat depth) |
| { |
| return true; |
| } |
| |
| bool ValidateClearStencil(ValidationContext *context, GLint s) |
| { |
| return true; |
| } |
| |
| bool ValidateColorMask(ValidationContext *context, |
| GLboolean red, |
| GLboolean green, |
| GLboolean blue, |
| GLboolean alpha) |
| { |
| return true; |
| } |
| |
| bool ValidateCompileShader(ValidationContext *context, GLuint shader) |
| { |
| return true; |
| } |
| |
| bool ValidateCreateProgram(ValidationContext *context) |
| { |
| return true; |
| } |
| |
| bool ValidateCullFace(ValidationContext *context, GLenum mode) |
| { |
| switch (mode) |
| { |
| case GL_FRONT: |
| case GL_BACK: |
| case GL_FRONT_AND_BACK: |
| break; |
| |
| default: |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid cull face parameter")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateDeleteProgram(ValidationContext *context, GLuint program) |
| { |
| if (program == 0) |
| { |
| return false; |
| } |
| |
| if (!context->getProgram(program)) |
| { |
| if (context->getShader(program)) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "Shader handle passed to DeleteProgram")); |
| return false; |
| } |
| else |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Invalid program handle")); |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| bool ValidateDeleteShader(ValidationContext *context, GLuint shader) |
| { |
| if (shader == 0) |
| { |
| return false; |
| } |
| |
| if (!context->getShader(shader)) |
| { |
| if (context->getProgram(shader)) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "Program handle passed to DeleteShader")); |
| return false; |
| } |
| else |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Invalid shader handle")); |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| bool ValidateDepthFunc(ValidationContext *context, GLenum func) |
| { |
| switch (func) |
| { |
| case GL_NEVER: |
| case GL_ALWAYS: |
| case GL_LESS: |
| case GL_LEQUAL: |
| case GL_EQUAL: |
| case GL_GREATER: |
| case GL_GEQUAL: |
| case GL_NOTEQUAL: |
| break; |
| |
| default: |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid depth function")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateDepthMask(ValidationContext *context, GLboolean flag) |
| { |
| return true; |
| } |
| |
| bool ValidateDetachShader(ValidationContext *context, GLuint program, GLuint shader) |
| { |
| Program *programObject = GetValidProgram(context, program); |
| if (!programObject) |
| { |
| return false; |
| } |
| |
| Shader *shaderObject = GetValidShader(context, shader); |
| if (!shaderObject) |
| { |
| return false; |
| } |
| |
| const Shader *attachedShader = nullptr; |
| |
| switch (shaderObject->getType()) |
| { |
| case GL_VERTEX_SHADER: |
| { |
| attachedShader = programObject->getAttachedVertexShader(); |
| break; |
| } |
| case GL_FRAGMENT_SHADER: |
| { |
| attachedShader = programObject->getAttachedFragmentShader(); |
| break; |
| } |
| case GL_COMPUTE_SHADER: |
| { |
| attachedShader = programObject->getAttachedComputeShader(); |
| break; |
| } |
| default: |
| UNREACHABLE(); |
| return false; |
| } |
| |
| if (attachedShader != shaderObject) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Cannot detach non-attached shader.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateDisableVertexAttribArray(ValidationContext *context, GLuint index) |
| { |
| if (index >= MAX_VERTEX_ATTRIBS) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Attrib array index out of range")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateEnableVertexAttribArray(ValidationContext *context, GLuint index) |
| { |
| if (index >= MAX_VERTEX_ATTRIBS) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Attrib array index out of range")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateFinish(ValidationContext *context) |
| { |
| return true; |
| } |
| |
| bool ValidateFlush(ValidationContext *context) |
| { |
| return true; |
| } |
| |
| bool ValidateFrontFace(ValidationContext *context, GLenum mode) |
| { |
| switch (mode) |
| { |
| case GL_CW: |
| case GL_CCW: |
| break; |
| default: |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid mode for FrontFace")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateGetActiveAttrib(ValidationContext *context, |
| GLuint program, |
| GLuint index, |
| GLsizei bufsize, |
| GLsizei *length, |
| GLint *size, |
| GLenum *type, |
| GLchar *name) |
| { |
| if (bufsize < 0) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "bufsize must be non-negative.")); |
| return false; |
| } |
| |
| Program *programObject = GetValidProgram(context, program); |
| |
| if (!programObject) |
| { |
| return false; |
| } |
| |
| if (index >= static_cast<GLuint>(programObject->getActiveAttributeCount())) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, "index exeeds program active attribute count.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateGetActiveUniform(ValidationContext *context, |
| GLuint program, |
| GLuint index, |
| GLsizei bufsize, |
| GLsizei *length, |
| GLint *size, |
| GLenum *type, |
| GLchar *name) |
| { |
| if (bufsize < 0) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "bufsize must be non-negative.")); |
| return false; |
| } |
| |
| Program *programObject = GetValidProgram(context, program); |
| |
| if (!programObject) |
| { |
| return false; |
| } |
| |
| if (index >= static_cast<GLuint>(programObject->getActiveUniformCount())) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, "index exceeds program active uniform count.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateGetAttachedShaders(ValidationContext *context, |
| GLuint program, |
| GLsizei maxcount, |
| GLsizei *count, |
| GLuint *shaders) |
| { |
| if (maxcount < 0) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "max count must be non-negative.")); |
| return false; |
| } |
| |
| Program *programObject = GetValidProgram(context, program); |
| |
| if (!programObject) |
| { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateGetAttribLocation(ValidationContext *context, GLuint program, const GLchar *name) |
| { |
| Program *programObject = GetValidProgram(context, program); |
| |
| if (!programObject) |
| { |
| return false; |
| } |
| |
| if (!programObject->isLinked()) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "program not linked.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateGetBooleanv(ValidationContext *context, GLenum pname, GLboolean *params) |
| { |
| GLenum nativeType; |
| unsigned int numParams = 0; |
| return ValidateStateQuery(context, pname, &nativeType, &numParams); |
| } |
| |
| bool ValidateGetError(ValidationContext *context) |
| { |
| return true; |
| } |
| |
| bool ValidateGetFloatv(ValidationContext *context, GLenum pname, GLfloat *params) |
| { |
| GLenum nativeType; |
| unsigned int numParams = 0; |
| return ValidateStateQuery(context, pname, &nativeType, &numParams); |
| } |
| |
| bool ValidateGetIntegerv(ValidationContext *context, GLenum pname, GLint *params) |
| { |
| GLenum nativeType; |
| unsigned int numParams = 0; |
| return ValidateStateQuery(context, pname, &nativeType, &numParams); |
| } |
| |
| bool ValidateGetProgramInfoLog(ValidationContext *context, |
| GLuint program, |
| GLsizei bufsize, |
| GLsizei *length, |
| GLchar *infolog) |
| { |
| if (bufsize < 0) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "bufsize must be non-negative.")); |
| return false; |
| } |
| |
| Program *programObject = GetValidProgram(context, program); |
| if (!programObject) |
| { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateGetShaderInfoLog(ValidationContext *context, |
| GLuint shader, |
| GLsizei bufsize, |
| GLsizei *length, |
| GLchar *infolog) |
| { |
| if (bufsize < 0) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "bufsize must be non-negative.")); |
| return false; |
| } |
| |
| Shader *shaderObject = GetValidShader(context, shader); |
| if (!shaderObject) |
| { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateGetShaderPrecisionFormat(ValidationContext *context, |
| GLenum shadertype, |
| GLenum precisiontype, |
| GLint *range, |
| GLint *precision) |
| { |
| switch (shadertype) |
| { |
| case GL_VERTEX_SHADER: |
| case GL_FRAGMENT_SHADER: |
| break; |
| case GL_COMPUTE_SHADER: |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "compute shader precision not yet implemented.")); |
| return false; |
| default: |
| context->handleError(Error(GL_INVALID_ENUM, "invalid shader type.")); |
| return false; |
| } |
| |
| switch (precisiontype) |
| { |
| case GL_LOW_FLOAT: |
| case GL_MEDIUM_FLOAT: |
| case GL_HIGH_FLOAT: |
| case GL_LOW_INT: |
| case GL_MEDIUM_INT: |
| case GL_HIGH_INT: |
| break; |
| |
| default: |
| context->handleError(Error(GL_INVALID_ENUM, "invalid precision type.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateGetShaderSource(ValidationContext *context, |
| GLuint shader, |
| GLsizei bufsize, |
| GLsizei *length, |
| GLchar *source) |
| { |
| if (bufsize < 0) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "bufsize must be non-negative.")); |
| return false; |
| } |
| |
| Shader *shaderObject = GetValidShader(context, shader); |
| if (!shaderObject) |
| { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateGetUniformLocation(ValidationContext *context, GLuint program, const GLchar *name) |
| { |
| if (strstr(name, "gl_") == name) |
| { |
| return false; |
| } |
| |
| Program *programObject = GetValidProgram(context, program); |
| |
| if (!programObject) |
| { |
| return false; |
| } |
| |
| if (!programObject->isLinked()) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "program is not linked.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateHint(ValidationContext *context, GLenum target, GLenum mode) |
| { |
| switch (mode) |
| { |
| case GL_FASTEST: |
| case GL_NICEST: |
| case GL_DONT_CARE: |
| break; |
| |
| default: |
| context->handleError(Error(GL_INVALID_ENUM, "invalid hint mode.")); |
| return false; |
| } |
| |
| switch (target) |
| { |
| case GL_GENERATE_MIPMAP_HINT: |
| break; |
| |
| case GL_FRAGMENT_SHADER_DERIVATIVE_HINT_OES: |
| if (!context->getExtensions().standardDerivatives) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "hint requires OES_standard_derivatives.")); |
| return false; |
| } |
| break; |
| |
| default: |
| context->handleError(Error(GL_INVALID_ENUM, "invalid hint target.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateIsBuffer(ValidationContext *context, GLuint buffer) |
| { |
| return true; |
| } |
| |
| bool ValidateIsFramebuffer(ValidationContext *context, GLuint framebuffer) |
| { |
| return true; |
| } |
| |
| bool ValidateIsProgram(ValidationContext *context, GLuint program) |
| { |
| return true; |
| } |
| |
| bool ValidateIsRenderbuffer(ValidationContext *context, GLuint renderbuffer) |
| { |
| return true; |
| } |
| |
| bool ValidateIsShader(ValidationContext *context, GLuint shader) |
| { |
| return true; |
| } |
| |
| bool ValidateIsTexture(ValidationContext *context, GLuint texture) |
| { |
| return true; |
| } |
| |
| bool ValidatePixelStorei(ValidationContext *context, GLenum pname, GLint param) |
| { |
| if (context->getClientMajorVersion() < 3) |
| { |
| switch (pname) |
| { |
| case GL_UNPACK_IMAGE_HEIGHT: |
| case GL_UNPACK_SKIP_IMAGES: |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| |
| case GL_UNPACK_ROW_LENGTH: |
| case GL_UNPACK_SKIP_ROWS: |
| case GL_UNPACK_SKIP_PIXELS: |
| if (!context->getExtensions().unpackSubimage) |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| |
| case GL_PACK_ROW_LENGTH: |
| case GL_PACK_SKIP_ROWS: |
| case GL_PACK_SKIP_PIXELS: |
| if (!context->getExtensions().packSubimage) |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| break; |
| } |
| } |
| |
| if (param < 0) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Cannot use negative values in PixelStorei")); |
| return false; |
| } |
| |
| switch (pname) |
| { |
| case GL_UNPACK_ALIGNMENT: |
| if (param != 1 && param != 2 && param != 4 && param != 8) |
| { |
| context->handleError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| break; |
| |
| case GL_PACK_ALIGNMENT: |
| if (param != 1 && param != 2 && param != 4 && param != 8) |
| { |
| context->handleError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| break; |
| |
| case GL_PACK_REVERSE_ROW_ORDER_ANGLE: |
| case GL_UNPACK_ROW_LENGTH: |
| case GL_UNPACK_IMAGE_HEIGHT: |
| case GL_UNPACK_SKIP_IMAGES: |
| case GL_UNPACK_SKIP_ROWS: |
| case GL_UNPACK_SKIP_PIXELS: |
| case GL_PACK_ROW_LENGTH: |
| case GL_PACK_SKIP_ROWS: |
| case GL_PACK_SKIP_PIXELS: |
| break; |
| |
| default: |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidatePolygonOffset(ValidationContext *context, GLfloat factor, GLfloat units) |
| { |
| return true; |
| } |
| |
| bool ValidateReleaseShaderCompiler(ValidationContext *context) |
| { |
| return true; |
| } |
| |
| bool ValidateSampleCoverage(ValidationContext *context, GLfloat value, GLboolean invert) |
| { |
| return true; |
| } |
| |
| bool ValidateScissor(ValidationContext *context, GLint x, GLint y, GLsizei width, GLsizei height) |
| { |
| if (width < 0 || height < 0) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, "Scissor width and height must be non-negative.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateShaderBinary(ValidationContext *context, |
| GLsizei n, |
| const GLuint *shaders, |
| GLenum binaryformat, |
| const void *binary, |
| GLsizei length) |
| { |
| const std::vector<GLenum> &shaderBinaryFormats = context->getCaps().shaderBinaryFormats; |
| if (std::find(shaderBinaryFormats.begin(), shaderBinaryFormats.end(), binaryformat) == |
| shaderBinaryFormats.end()) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid shader binary format.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateShaderSource(ValidationContext *context, |
| GLuint shader, |
| GLsizei count, |
| const GLchar *const *string, |
| const GLint *length) |
| { |
| if (count < 0) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Count must be non-negative.")); |
| return false; |
| } |
| |
| Shader *shaderObject = GetValidShader(context, shader); |
| if (!shaderObject) |
| { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateStencilFunc(ValidationContext *context, GLenum func, GLint ref, GLuint mask) |
| { |
| if (!IsValidStencilFunc(func)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid stencil function.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateStencilFuncSeparate(ValidationContext *context, |
| GLenum face, |
| GLenum func, |
| GLint ref, |
| GLuint mask) |
| { |
| if (!IsValidStencilFace(face)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid stencil face.")); |
| return false; |
| } |
| |
| if (!IsValidStencilFunc(func)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid stencil function.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateStencilMask(ValidationContext *context, GLuint mask) |
| { |
| return true; |
| } |
| |
| bool ValidateStencilMaskSeparate(ValidationContext *context, GLenum face, GLuint mask) |
| { |
| if (!IsValidStencilFace(face)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid stencil face.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateStencilOp(ValidationContext *context, GLenum fail, GLenum zfail, GLenum zpass) |
| { |
| if (!IsValidStencilOp(fail)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid stencil fail op.")); |
| return false; |
| } |
| |
| if (!IsValidStencilOp(zfail)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid stencil z fail op.")); |
| return false; |
| } |
| |
| if (!IsValidStencilOp(zpass)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid stencil z pass op.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateStencilOpSeparate(ValidationContext *context, |
| GLenum face, |
| GLenum fail, |
| GLenum zfail, |
| GLenum zpass) |
| { |
| if (!IsValidStencilFace(face)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid stencil face.")); |
| return false; |
| } |
| |
| return ValidateStencilOp(context, fail, zfail, zpass); |
| } |
| |
| bool ValidateUniform1f(ValidationContext *context, GLint location, GLfloat x) |
| { |
| return ValidateUniform(context, GL_FLOAT, location, 1); |
| } |
| |
| bool ValidateUniform1fv(ValidationContext *context, GLint location, GLsizei count, const GLfloat *v) |
| { |
| return ValidateUniform(context, GL_FLOAT, location, count); |
| } |
| |
| bool ValidateUniform1i(ValidationContext *context, GLint location, GLint x) |
| { |
| return ValidateUniform1iv(context, location, 1, &x); |
| } |
| |
| bool ValidateUniform2f(ValidationContext *context, GLint location, GLfloat x, GLfloat y) |
| { |
| return ValidateUniform(context, GL_FLOAT_VEC2, location, 1); |
| } |
| |
| bool ValidateUniform2fv(ValidationContext *context, GLint location, GLsizei count, const GLfloat *v) |
| { |
| return ValidateUniform(context, GL_FLOAT_VEC2, location, count); |
| } |
| |
| bool ValidateUniform2i(ValidationContext *context, GLint location, GLint x, GLint y) |
| { |
| return ValidateUniform(context, GL_INT_VEC2, location, 1); |
| } |
| |
| bool ValidateUniform2iv(ValidationContext *context, GLint location, GLsizei count, const GLint *v) |
| { |
| return ValidateUniform(context, GL_INT_VEC2, location, count); |
| } |
| |
| bool ValidateUniform3f(ValidationContext *context, GLint location, GLfloat x, GLfloat y, GLfloat z) |
| { |
| return ValidateUniform(context, GL_FLOAT_VEC3, location, 1); |
| } |
| |
| bool ValidateUniform3fv(ValidationContext *context, GLint location, GLsizei count, const GLfloat *v) |
| { |
| return ValidateUniform(context, GL_FLOAT_VEC3, location, count); |
| } |
| |
| bool ValidateUniform3i(ValidationContext *context, GLint location, GLint x, GLint y, GLint z) |
| { |
| return ValidateUniform(context, GL_INT_VEC3, location, 1); |
| } |
| |
| bool ValidateUniform3iv(ValidationContext *context, GLint location, GLsizei count, const GLint *v) |
| { |
| return ValidateUniform(context, GL_INT_VEC3, location, count); |
| } |
| |
| bool ValidateUniform4f(ValidationContext *context, |
| GLint location, |
| GLfloat x, |
| GLfloat y, |
| GLfloat z, |
| GLfloat w) |
| { |
| return ValidateUniform(context, GL_FLOAT_VEC4, location, 1); |
| } |
| |
| bool ValidateUniform4fv(ValidationContext *context, GLint location, GLsizei count, const GLfloat *v) |
| { |
| return ValidateUniform(context, GL_FLOAT_VEC4, location, count); |
| } |
| |
| bool ValidateUniform4i(ValidationContext *context, |
| GLint location, |
| GLint x, |
| GLint y, |
| GLint z, |
| GLint w) |
| { |
| return ValidateUniform(context, GL_INT_VEC4, location, 1); |
| } |
| |
| bool ValidateUniform4iv(ValidationContext *context, GLint location, GLsizei count, const GLint *v) |
| { |
| return ValidateUniform(context, GL_INT_VEC4, location, count); |
| } |
| |
| bool ValidateUniformMatrix2fv(ValidationContext *context, |
| GLint location, |
| GLsizei count, |
| GLboolean transpose, |
| const GLfloat *value) |
| { |
| return ValidateUniformMatrix(context, GL_FLOAT_MAT2, location, count, transpose); |
| } |
| |
| bool ValidateUniformMatrix3fv(ValidationContext *context, |
| GLint location, |
| GLsizei count, |
| GLboolean transpose, |
| const GLfloat *value) |
| { |
| return ValidateUniformMatrix(context, GL_FLOAT_MAT3, location, count, transpose); |
| } |
| |
| bool ValidateUniformMatrix4fv(ValidationContext *context, |
| GLint location, |
| GLsizei count, |
| GLboolean transpose, |
| const GLfloat *value) |
| { |
| return ValidateUniformMatrix(context, GL_FLOAT_MAT4, location, count, transpose); |
| } |
| |
| bool ValidateValidateProgram(ValidationContext *context, GLuint program) |
| { |
| Program *programObject = GetValidProgram(context, program); |
| |
| if (!programObject) |
| { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateVertexAttribIndex(ValidationContext *context, GLuint index) |
| { |
| if (index >= MAX_VERTEX_ATTRIBS) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Vertex attrib index out of range.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateVertexAttrib1f(ValidationContext *context, GLuint index, GLfloat x) |
| { |
| return ValidateVertexAttribIndex(context, index); |
| } |
| |
| bool ValidateVertexAttrib1fv(ValidationContext *context, GLuint index, const GLfloat *values) |
| { |
| return ValidateVertexAttribIndex(context, index); |
| } |
| |
| bool ValidateVertexAttrib2f(ValidationContext *context, GLuint index, GLfloat x, GLfloat y) |
| { |
| return ValidateVertexAttribIndex(context, index); |
| } |
| |
| bool ValidateVertexAttrib2fv(ValidationContext *context, GLuint index, const GLfloat *values) |
| { |
| return ValidateVertexAttribIndex(context, index); |
| } |
| |
| bool ValidateVertexAttrib3f(ValidationContext *context, |
| GLuint index, |
| GLfloat x, |
| GLfloat y, |
| GLfloat z) |
| { |
| return ValidateVertexAttribIndex(context, index); |
| } |
| |
| bool ValidateVertexAttrib3fv(ValidationContext *context, GLuint index, const GLfloat *values) |
| { |
| return ValidateVertexAttribIndex(context, index); |
| } |
| |
| bool ValidateVertexAttrib4f(ValidationContext *context, |
| GLuint index, |
| GLfloat x, |
| GLfloat y, |
| GLfloat z, |
| GLfloat w) |
| { |
| return ValidateVertexAttribIndex(context, index); |
| } |
| |
| bool ValidateVertexAttrib4fv(ValidationContext *context, GLuint index, const GLfloat *values) |
| { |
| return ValidateVertexAttribIndex(context, index); |
| } |
| |
| bool ValidateViewport(ValidationContext *context, GLint x, GLint y, GLsizei width, GLsizei height) |
| { |
| if (width < 0 || height < 0) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, "Viewport width and height must be non-negative.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateDrawArrays(ValidationContext *context, GLenum mode, GLint first, GLsizei count) |
| { |
| return ValidateDrawArraysCommon(context, mode, first, count, 1); |
| } |
| |
| bool ValidateDrawElements(ValidationContext *context, |
| GLenum mode, |
| GLsizei count, |
| GLenum type, |
| const void *indices) |
| { |
| return ValidateDrawElementsCommon(context, mode, count, type, indices, 1); |
| } |
| |
| bool ValidateGetFramebufferAttachmentParameteriv(ValidationContext *context, |
| GLenum target, |
| GLenum attachment, |
| GLenum pname, |
| GLint *params) |
| { |
| return ValidateGetFramebufferAttachmentParameterivBase(context, target, attachment, pname, |
| nullptr); |
| } |
| |
| bool ValidateGetProgramiv(ValidationContext *context, GLuint program, GLenum pname, GLint *params) |
| { |
| return ValidateGetProgramivBase(context, program, pname, nullptr); |
| } |
| |
| bool ValidateCopyTexImage2D(ValidationContext *context, |
| GLenum target, |
| GLint level, |
| GLenum internalformat, |
| GLint x, |
| GLint y, |
| GLsizei width, |
| GLsizei height, |
| GLint border) |
| { |
| if (context->getClientMajorVersion() < 3) |
| { |
| return ValidateES2CopyTexImageParameters(context, target, level, internalformat, false, 0, |
| 0, x, y, width, height, border); |
| } |
| |
| ASSERT(context->getClientMajorVersion() == 3); |
| return ValidateES3CopyTexImage2DParameters(context, target, level, internalformat, false, 0, 0, |
| 0, x, y, width, height, border); |
| } |
| |
| bool ValidateCopyTexSubImage2D(Context *context, |
| GLenum target, |
| GLint level, |
| GLint xoffset, |
| GLint yoffset, |
| GLint x, |
| GLint y, |
| GLsizei width, |
| GLsizei height) |
| { |
| if (context->getClientMajorVersion() < 3) |
| { |
| return ValidateES2CopyTexImageParameters(context, target, level, GL_NONE, true, xoffset, |
| yoffset, x, y, width, height, 0); |
| } |
| |
| return ValidateES3CopyTexImage2DParameters(context, target, level, GL_NONE, true, xoffset, |
| yoffset, 0, x, y, width, height, 0); |
| } |
| |
| bool ValidateDeleteBuffers(Context *context, GLint n, const GLuint *) |
| { |
| return ValidateGenOrDelete(context, n); |
| } |
| |
| bool ValidateDeleteFramebuffers(Context *context, GLint n, const GLuint *) |
| { |
| return ValidateGenOrDelete(context, n); |
| } |
| |
| bool ValidateDeleteRenderbuffers(Context *context, GLint n, const GLuint *) |
| { |
| return ValidateGenOrDelete(context, n); |
| } |
| |
| bool ValidateDeleteTextures(Context *context, GLint n, const GLuint *) |
| { |
| return ValidateGenOrDelete(context, n); |
| } |
| |
| bool ValidateDisable(Context *context, GLenum cap) |
| { |
| if (!ValidCap(context, cap, false)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid cap.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateEnable(Context *context, GLenum cap) |
| { |
| if (!ValidCap(context, cap, false)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid cap.")); |
| return false; |
| } |
| |
| if (context->getLimitations().noSampleAlphaToCoverageSupport && |
| cap == GL_SAMPLE_ALPHA_TO_COVERAGE) |
| { |
| const char *errorMessage = "Current renderer doesn't support alpha-to-coverage"; |
| context->handleError(Error(GL_INVALID_OPERATION, errorMessage)); |
| |
| // We also output an error message to the debugger window if tracing is active, so that |
| // developers can see the error message. |
| ERR() << errorMessage; |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateFramebufferRenderbuffer(Context *context, |
| GLenum target, |
| GLenum attachment, |
| GLenum renderbuffertarget, |
| GLuint renderbuffer) |
| { |
| if (!ValidFramebufferTarget(target) || |
| (renderbuffertarget != GL_RENDERBUFFER && renderbuffer != 0)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| |
| return ValidateFramebufferRenderbufferParameters(context, target, attachment, |
| renderbuffertarget, renderbuffer); |
| } |
| |
| bool ValidateFramebufferTexture2D(Context *context, |
| GLenum target, |
| GLenum attachment, |
| GLenum textarget, |
| GLuint texture, |
| GLint level) |
| { |
| // Attachments are required to be bound to level 0 without ES3 or the GL_OES_fbo_render_mipmap |
| // extension |
| if (context->getClientMajorVersion() < 3 && !context->getExtensions().fboRenderMipmap && |
| level != 0) |
| { |
| context->handleError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| |
| if (!ValidateFramebufferTextureBase(context, target, attachment, texture, level)) |
| { |
| return false; |
| } |
| |
| if (texture != 0) |
| { |
| gl::Texture *tex = context->getTexture(texture); |
| ASSERT(tex); |
| |
| const gl::Caps &caps = context->getCaps(); |
| |
| switch (textarget) |
| { |
| case GL_TEXTURE_2D: |
| { |
| if (level > gl::log2(caps.max2DTextureSize)) |
| { |
| context->handleError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| if (tex->getTarget() != GL_TEXTURE_2D) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, |
| "Textarget must match the texture target type.")); |
| return false; |
| } |
| } |
| break; |
| |
| case GL_TEXTURE_CUBE_MAP_POSITIVE_X: |
| case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: |
| case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: |
| case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: |
| case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: |
| case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: |
| { |
| if (level > gl::log2(caps.maxCubeMapTextureSize)) |
| { |
| context->handleError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| if (tex->getTarget() != GL_TEXTURE_CUBE_MAP) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, |
| "Textarget must match the texture target type.")); |
| return false; |
| } |
| } |
| break; |
| |
| case GL_TEXTURE_2D_MULTISAMPLE: |
| { |
| if (context->getClientVersion() < ES_3_1) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, |
| "Texture target requires at least OpenGL ES 3.1.")); |
| return false; |
| } |
| |
| if (level != 0) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, "Level must be 0 for TEXTURE_2D_MULTISAMPLE.")); |
| return false; |
| } |
| if (tex->getTarget() != GL_TEXTURE_2D_MULTISAMPLE) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, |
| "Textarget must match the texture target type.")); |
| return false; |
| } |
| } |
| break; |
| |
| default: |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| |
| const Format &format = tex->getFormat(textarget, level); |
| if (format.info->compressed) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| bool ValidateGenBuffers(Context *context, GLint n, GLuint *) |
| { |
| return ValidateGenOrDelete(context, n); |
| } |
| |
| bool ValidateGenFramebuffers(Context *context, GLint n, GLuint *) |
| { |
| return ValidateGenOrDelete(context, n); |
| } |
| |
| bool ValidateGenRenderbuffers(Context *context, GLint n, GLuint *) |
| { |
| return ValidateGenOrDelete(context, n); |
| } |
| |
| bool ValidateGenTextures(Context *context, GLint n, GLuint *) |
| { |
| return ValidateGenOrDelete(context, n); |
| } |
| |
| bool ValidateGenerateMipmap(Context *context, GLenum target) |
| { |
| if (!ValidTextureTarget(context, target)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM)); |
| return false; |
| } |
| |
| Texture *texture = context->getTargetTexture(target); |
| |
| if (texture == nullptr) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| |
| const GLuint effectiveBaseLevel = texture->getTextureState().getEffectiveBaseLevel(); |
| |
| // This error isn't spelled out in the spec in a very explicit way, but we interpret the spec so |
| // that out-of-range base level has a non-color-renderable / non-texture-filterable format. |
| if (effectiveBaseLevel >= gl::IMPLEMENTATION_MAX_TEXTURE_LEVELS) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| |
| GLenum baseTarget = (target == GL_TEXTURE_CUBE_MAP) ? GL_TEXTURE_CUBE_MAP_POSITIVE_X : target; |
| const auto &format = texture->getFormat(baseTarget, effectiveBaseLevel); |
| const TextureCaps &formatCaps = context->getTextureCaps().get(format.info->sizedInternalFormat); |
| |
| // GenerateMipmap should not generate an INVALID_OPERATION for textures created with |
| // unsized formats or that are color renderable and filterable. Since we do not track if |
| // the texture was created with sized or unsized format (only sized formats are stored), |
| // it is not possible to make sure the the LUMA formats can generate mipmaps (they should |
| // be able to) because they aren't color renderable. Simply do a special case for LUMA |
| // textures since they're the only texture format that can be created with unsized formats |
| // that is not color renderable. New unsized formats are unlikely to be added, since ES2 |
| // was the last version to use add them. |
| if (format.info->depthBits > 0 || format.info->stencilBits > 0 || !formatCaps.filterable || |
| (!formatCaps.renderable && !format.info->isLUMA()) || format.info->compressed) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| |
| // ES3 and WebGL grant mipmap generation for sRGB textures but GL_EXT_sRGB does not. |
| bool supportsSRGBMipmapGeneration = |
| context->getClientVersion() >= ES_3_0 || context->getExtensions().webglCompatibility; |
| if (!supportsSRGBMipmapGeneration && format.info->colorEncoding == GL_SRGB) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "Mipmap generation of sRGB textures is not allowed.")); |
| return false; |
| } |
| |
| // Non-power of 2 ES2 check |
| if (context->getClientVersion() < Version(3, 0) && !context->getExtensions().textureNPOT && |
| (!isPow2(static_cast<int>(texture->getWidth(baseTarget, 0))) || |
| !isPow2(static_cast<int>(texture->getHeight(baseTarget, 0))))) |
| { |
| ASSERT(target == GL_TEXTURE_2D || target == GL_TEXTURE_CUBE_MAP); |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| |
| // Cube completeness check |
| if (target == GL_TEXTURE_CUBE_MAP && !texture->getTextureState().isCubeComplete()) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION)); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateGetBufferParameteriv(ValidationContext *context, |
| GLenum target, |
| GLenum pname, |
| GLint *params) |
| { |
| return ValidateGetBufferParameterBase(context, target, pname, false, nullptr); |
| } |
| |
| bool ValidateGetRenderbufferParameteriv(Context *context, |
| GLenum target, |
| GLenum pname, |
| GLint *params) |
| { |
| return ValidateGetRenderbufferParameterivBase(context, target, pname, nullptr); |
| } |
| |
| bool ValidateGetShaderiv(Context *context, GLuint shader, GLenum pname, GLint *params) |
| { |
| return ValidateGetShaderivBase(context, shader, pname, nullptr); |
| } |
| |
| bool ValidateGetTexParameterfv(Context *context, GLenum target, GLenum pname, GLfloat *params) |
| { |
| return ValidateGetTexParameterBase(context, target, pname, nullptr); |
| } |
| |
| bool ValidateGetTexParameteriv(Context *context, GLenum target, GLenum pname, GLint *params) |
| { |
| return ValidateGetTexParameterBase(context, target, pname, nullptr); |
| } |
| |
| bool ValidateGetUniformfv(Context *context, GLuint program, GLint location, GLfloat *params) |
| { |
| return ValidateGetUniformBase(context, program, location); |
| } |
| |
| bool ValidateGetUniformiv(Context *context, GLuint program, GLint location, GLint *params) |
| { |
| return ValidateGetUniformBase(context, program, location); |
| } |
| |
| bool ValidateGetVertexAttribfv(Context *context, GLuint index, GLenum pname, GLfloat *params) |
| { |
| return ValidateGetVertexAttribBase(context, index, pname, nullptr, false, false); |
| } |
| |
| bool ValidateGetVertexAttribiv(Context *context, GLuint index, GLenum pname, GLint *params) |
| { |
| return ValidateGetVertexAttribBase(context, index, pname, nullptr, false, false); |
| } |
| |
| bool ValidateGetVertexAttribPointerv(Context *context, GLuint index, GLenum pname, void **pointer) |
| { |
| return ValidateGetVertexAttribBase(context, index, pname, nullptr, true, false); |
| } |
| |
| bool ValidateIsEnabled(Context *context, GLenum cap) |
| { |
| if (!ValidCap(context, cap, true)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid cap.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateLinkProgram(Context *context, GLuint program) |
| { |
| if (context->hasActiveTransformFeedback(program)) |
| { |
| // ES 3.0.4 section 2.15 page 91 |
| context->handleError(Error(GL_INVALID_OPERATION, |
| "Cannot link program while program is associated with an active " |
| "transform feedback object.")); |
| return false; |
| } |
| |
| Program *programObject = GetValidProgram(context, program); |
| if (!programObject) |
| { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateReadPixels(ValidationContext *context, |
| GLint x, |
| GLint y, |
| GLsizei width, |
| GLsizei height, |
| GLenum format, |
| GLenum type, |
| void *pixels) |
| { |
| return ValidateReadPixelsBase(context, x, y, width, height, format, type, -1, nullptr, nullptr, |
| nullptr, pixels); |
| } |
| |
| bool ValidateTexParameterf(Context *context, GLenum target, GLenum pname, GLfloat param) |
| { |
| return ValidateTexParameterBase(context, target, pname, -1, ¶m); |
| } |
| |
| bool ValidateTexParameterfv(Context *context, GLenum target, GLenum pname, const GLfloat *params) |
| { |
| return ValidateTexParameterBase(context, target, pname, -1, params); |
| } |
| |
| bool ValidateTexParameteri(Context *context, GLenum target, GLenum pname, GLint param) |
| { |
| return ValidateTexParameterBase(context, target, pname, -1, ¶m); |
| } |
| |
| bool ValidateTexParameteriv(Context *context, GLenum target, GLenum pname, const GLint *params) |
| { |
| return ValidateTexParameterBase(context, target, pname, -1, params); |
| } |
| |
| bool ValidateUseProgram(Context *context, GLuint program) |
| { |
| if (program != 0) |
| { |
| Program *programObject = context->getProgram(program); |
| if (!programObject) |
| { |
| // ES 3.1.0 section 7.3 page 72 |
| if (context->getShader(program)) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, |
| "Attempted to use a single shader instead of a shader program.")); |
| return false; |
| } |
| else |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Program invalid.")); |
| return false; |
| } |
| } |
| if (!programObject->isLinked()) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Program not linked.")); |
| return false; |
| } |
| } |
| if (context->getGLState().isTransformFeedbackActiveUnpaused()) |
| { |
| // ES 3.0.4 section 2.15 page 91 |
| context->handleError( |
| Error(GL_INVALID_OPERATION, |
| "Cannot change active program while transform feedback is unpaused.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| } // namespace gl |
