| // |
| // Copyright (c) 2016 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. |
| // |
| |
| // validationES31.cpp: Validation functions for OpenGL ES 3.1 entry point parameters |
| |
| #include "libANGLE/validationES31.h" |
| |
| #include "libANGLE/Context.h" |
| #include "libANGLE/Framebuffer.h" |
| #include "libANGLE/VertexArray.h" |
| #include "libANGLE/validationES.h" |
| #include "libANGLE/validationES3.h" |
| |
| #include "common/utilities.h" |
| |
| using namespace angle; |
| |
| namespace gl |
| { |
| |
| namespace |
| { |
| |
| bool ValidateNamedProgramInterface(GLenum programInterface) |
| { |
| switch (programInterface) |
| { |
| case GL_UNIFORM: |
| case GL_UNIFORM_BLOCK: |
| case GL_PROGRAM_INPUT: |
| case GL_PROGRAM_OUTPUT: |
| case GL_TRANSFORM_FEEDBACK_VARYING: |
| case GL_BUFFER_VARIABLE: |
| case GL_SHADER_STORAGE_BLOCK: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| bool ValidateProgramResourceIndex(const Program *programObject, |
| GLenum programInterface, |
| GLuint index) |
| { |
| switch (programInterface) |
| { |
| case GL_PROGRAM_INPUT: |
| return (index < static_cast<GLuint>(programObject->getActiveAttributeCount())); |
| |
| case GL_PROGRAM_OUTPUT: |
| return (index < static_cast<GLuint>(programObject->getOutputResourceCount())); |
| |
| // TODO(Jie): more interfaces. |
| case GL_UNIFORM: |
| case GL_UNIFORM_BLOCK: |
| case GL_TRANSFORM_FEEDBACK_VARYING: |
| case GL_BUFFER_VARIABLE: |
| case GL_SHADER_STORAGE_BLOCK: |
| UNIMPLEMENTED(); |
| return false; |
| |
| default: |
| UNREACHABLE(); |
| return false; |
| } |
| } |
| |
| } // anonymous namespace |
| |
| bool ValidateGetBooleani_v(Context *context, GLenum target, GLuint index, GLboolean *data) |
| { |
| if (context->getClientVersion() < ES_3_1) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Context does not support GLES3.1")); |
| return false; |
| } |
| |
| if (!ValidateIndexedStateQuery(context, target, index, nullptr)) |
| { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateGetBooleani_vRobustANGLE(Context *context, |
| GLenum target, |
| GLuint index, |
| GLsizei bufSize, |
| GLsizei *length, |
| GLboolean *data) |
| { |
| if (context->getClientVersion() < ES_3_1) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Context does not support GLES3.1")); |
| return false; |
| } |
| |
| if (!ValidateRobustEntryPoint(context, bufSize)) |
| { |
| return false; |
| } |
| |
| if (!ValidateIndexedStateQuery(context, target, index, length)) |
| { |
| return false; |
| } |
| |
| if (!ValidateRobustBufferSize(context, bufSize, *length)) |
| { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateDrawIndirectBase(Context *context, GLenum mode, const void *indirect) |
| { |
| if (context->getClientVersion() < ES_3_1) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Context does not support GLES3.1")); |
| return false; |
| } |
| |
| // Here the third parameter 1 is only to pass the count validation. |
| if (!ValidateDrawBase(context, mode, 1)) |
| { |
| return false; |
| } |
| |
| const State &state = context->getGLState(); |
| |
| // An INVALID_OPERATION error is generated if zero is bound to VERTEX_ARRAY_BINDING, |
| // DRAW_INDIRECT_BUFFER or to any enabled vertex array. |
| if (!state.getVertexArrayId()) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "zero is bound to VERTEX_ARRAY_BINDING")); |
| return false; |
| } |
| |
| gl::Buffer *drawIndirectBuffer = state.getDrawIndirectBuffer(); |
| if (!drawIndirectBuffer) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "zero is bound to DRAW_INDIRECT_BUFFER")); |
| return false; |
| } |
| |
| // An INVALID_VALUE error is generated if indirect is not a multiple of the size, in basic |
| // machine units, of uint. |
| GLint64 offset = reinterpret_cast<GLint64>(indirect); |
| if ((static_cast<GLuint>(offset) % sizeof(GLuint)) != 0) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, |
| "indirect is not a multiple of the size, in basic machine units, of uint")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateDrawArraysIndirect(Context *context, GLenum mode, const void *indirect) |
| { |
| const State &state = context->getGLState(); |
| gl::TransformFeedback *curTransformFeedback = state.getCurrentTransformFeedback(); |
| if (curTransformFeedback && curTransformFeedback->isActive() && |
| !curTransformFeedback->isPaused()) |
| { |
| // An INVALID_OPERATION error is generated if transform feedback is active and not paused. |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "transform feedback is active and not paused.")); |
| return false; |
| } |
| |
| if (!ValidateDrawIndirectBase(context, mode, indirect)) |
| return false; |
| |
| gl::Buffer *drawIndirectBuffer = state.getDrawIndirectBuffer(); |
| CheckedNumeric<size_t> checkedOffset(reinterpret_cast<size_t>(indirect)); |
| // In OpenGL ES3.1 spec, session 10.5, it defines the struct of DrawArraysIndirectCommand |
| // which's size is 4 * sizeof(uint). |
| auto checkedSum = checkedOffset + 4 * sizeof(GLuint); |
| if (!checkedSum.IsValid() || |
| checkedSum.ValueOrDie() > static_cast<size_t>(drawIndirectBuffer->getSize())) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, |
| "the command would source data beyond the end of the buffer object.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateDrawElementsIndirect(Context *context, GLenum mode, GLenum type, const void *indirect) |
| { |
| if (!ValidateDrawElementsBase(context, type)) |
| return false; |
| |
| const State &state = context->getGLState(); |
| const VertexArray *vao = state.getVertexArray(); |
| gl::Buffer *elementArrayBuffer = vao->getElementArrayBuffer().get(); |
| if (!elementArrayBuffer) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "zero is bound to ELEMENT_ARRAY_BUFFER")); |
| return false; |
| } |
| |
| if (!ValidateDrawIndirectBase(context, mode, indirect)) |
| return false; |
| |
| gl::Buffer *drawIndirectBuffer = state.getDrawIndirectBuffer(); |
| CheckedNumeric<size_t> checkedOffset(reinterpret_cast<size_t>(indirect)); |
| // In OpenGL ES3.1 spec, session 10.5, it defines the struct of DrawElementsIndirectCommand |
| // which's size is 5 * sizeof(uint). |
| auto checkedSum = checkedOffset + 5 * sizeof(GLuint); |
| if (!checkedSum.IsValid() || |
| checkedSum.ValueOrDie() > static_cast<size_t>(drawIndirectBuffer->getSize())) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, |
| "the command would source data beyond the end of the buffer object.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateGetTexLevelParameterBase(Context *context, |
| GLenum target, |
| GLint level, |
| GLenum pname, |
| GLsizei *length) |
| { |
| if (context->getClientVersion() < ES_3_1) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Context does not support GLES3.1")); |
| return false; |
| } |
| |
| if (length) |
| { |
| *length = 0; |
| } |
| |
| if (!ValidTexLevelDestinationTarget(context, target)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid texture target")); |
| return false; |
| } |
| |
| if (context->getTargetTexture(IsCubeMapTextureTarget(target) ? GL_TEXTURE_CUBE_MAP : target) == |
| nullptr) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "No texture bound.")); |
| return false; |
| } |
| |
| if (!ValidMipLevel(context, target, level)) |
| { |
| context->handleError(Error(GL_INVALID_VALUE)); |
| return false; |
| } |
| |
| switch (pname) |
| { |
| case GL_TEXTURE_RED_TYPE: |
| case GL_TEXTURE_GREEN_TYPE: |
| case GL_TEXTURE_BLUE_TYPE: |
| case GL_TEXTURE_ALPHA_TYPE: |
| case GL_TEXTURE_DEPTH_TYPE: |
| break; |
| case GL_TEXTURE_RED_SIZE: |
| case GL_TEXTURE_GREEN_SIZE: |
| case GL_TEXTURE_BLUE_SIZE: |
| case GL_TEXTURE_ALPHA_SIZE: |
| case GL_TEXTURE_DEPTH_SIZE: |
| case GL_TEXTURE_STENCIL_SIZE: |
| case GL_TEXTURE_SHARED_SIZE: |
| break; |
| case GL_TEXTURE_INTERNAL_FORMAT: |
| case GL_TEXTURE_WIDTH: |
| case GL_TEXTURE_HEIGHT: |
| case GL_TEXTURE_DEPTH: |
| break; |
| case GL_TEXTURE_SAMPLES: |
| case GL_TEXTURE_FIXED_SAMPLE_LOCATIONS: |
| break; |
| case GL_TEXTURE_COMPRESSED: |
| break; |
| default: |
| context->handleError(Error(GL_INVALID_ENUM, "Unknown pname.")); |
| return false; |
| } |
| |
| if (length) |
| { |
| *length = 1; |
| } |
| return true; |
| } |
| |
| bool ValidateGetTexLevelParameterfv(Context *context, |
| GLenum target, |
| GLint level, |
| GLenum pname, |
| GLfloat *params) |
| { |
| return ValidateGetTexLevelParameterBase(context, target, level, pname, nullptr); |
| } |
| |
| bool ValidateGetTexLevelParameteriv(Context *context, |
| GLenum target, |
| GLint level, |
| GLenum pname, |
| GLint *params) |
| { |
| return ValidateGetTexLevelParameterBase(context, target, level, pname, nullptr); |
| } |
| |
| bool ValidateTexStorage2DMultiSample(Context *context, |
| GLenum target, |
| GLsizei samples, |
| GLint internalFormat, |
| GLsizei width, |
| GLsizei height, |
| GLboolean fixedSampleLocations) |
| { |
| if (context->getClientVersion() < ES_3_1) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Context does not support GLES3.1.")); |
| return false; |
| } |
| |
| if (target != GL_TEXTURE_2D_MULTISAMPLE) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Target must be TEXTURE_2D_MULTISAMPLE.")); |
| return false; |
| } |
| |
| if (width < 1 || height < 1) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Width and height must be positive.")); |
| return false; |
| } |
| |
| const Caps &caps = context->getCaps(); |
| if (static_cast<GLuint>(width) > caps.max2DTextureSize || |
| static_cast<GLuint>(height) > caps.max2DTextureSize) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, |
| "Width and height must be less than or equal to GL_MAX_TEXTURE_SIZE.")); |
| return false; |
| } |
| |
| if (samples == 0) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Samples may not be zero.")); |
| return false; |
| } |
| |
| const TextureCaps &formatCaps = context->getTextureCaps().get(internalFormat); |
| if (!formatCaps.renderable) |
| { |
| context->handleError( |
| Error(GL_INVALID_ENUM, |
| "SizedInternalformat must be color-renderable, depth-renderable, " |
| "or stencil-renderable.")); |
| return false; |
| } |
| |
| // The ES3.1 spec(section 8.8) states that an INVALID_ENUM error is generated if internalformat |
| // is one of the unsized base internalformats listed in table 8.11. |
| const InternalFormat &formatInfo = GetSizedInternalFormatInfo(internalFormat); |
| if (formatInfo.internalFormat == GL_NONE) |
| { |
| context->handleError( |
| Error(GL_INVALID_ENUM, |
| "Internalformat is one of the unsupported unsized base internalformats.")); |
| return false; |
| } |
| |
| if (static_cast<GLuint>(samples) > formatCaps.getMaxSamples()) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, |
| "Samples must not be greater than maximum supported value for the format.")); |
| return false; |
| } |
| |
| Texture *texture = context->getTargetTexture(target); |
| if (!texture || texture->id() == 0) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Zero is bound to target.")); |
| return false; |
| } |
| |
| if (texture->getImmutableFormat()) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, |
| "The value of TEXTURE_IMMUTABLE_FORMAT for the texture " |
| "currently bound to target on the active texture unit is true.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateGetMultisamplefv(Context *context, GLenum pname, GLuint index, GLfloat *val) |
| { |
| if (context->getClientVersion() < ES_3_1) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Context does not support GLES3.1.")); |
| return false; |
| } |
| |
| if (pname != GL_SAMPLE_POSITION) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Pname must be SAMPLE_POSITION.")); |
| return false; |
| } |
| |
| GLint maxSamples = context->getCaps().maxSamples; |
| if (index >= static_cast<GLuint>(maxSamples)) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, "Index must be less than the value of SAMPLES.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidationFramebufferParameteri(Context *context, GLenum target, GLenum pname, GLint param) |
| { |
| if (context->getClientVersion() < ES_3_1) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Context does not support GLES3.1.")); |
| return false; |
| } |
| |
| if (!ValidFramebufferTarget(target)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid framebuffer target.")); |
| return false; |
| } |
| |
| switch (pname) |
| { |
| case GL_FRAMEBUFFER_DEFAULT_WIDTH: |
| { |
| GLint maxWidth = context->getCaps().maxFramebufferWidth; |
| if (param < 0 || param > maxWidth) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, |
| "Params less than 0 or greater than GL_MAX_FRAMEBUFFER_WIDTH.")); |
| return false; |
| } |
| break; |
| } |
| case GL_FRAMEBUFFER_DEFAULT_HEIGHT: |
| { |
| GLint maxHeight = context->getCaps().maxFramebufferHeight; |
| if (param < 0 || param > maxHeight) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, |
| "Params less than 0 or greater than GL_MAX_FRAMEBUFFER_HEIGHT.")); |
| return false; |
| } |
| break; |
| } |
| case GL_FRAMEBUFFER_DEFAULT_SAMPLES: |
| { |
| GLint maxSamples = context->getCaps().maxFramebufferSamples; |
| if (param < 0 || param > maxSamples) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, |
| "Params less than 0 or greater than GL_MAX_FRAMEBUFFER_SAMPLES.")); |
| return false; |
| } |
| break; |
| } |
| case GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS: |
| { |
| break; |
| } |
| default: |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid pname: 0x%X", pname)); |
| return false; |
| } |
| } |
| |
| const Framebuffer *framebuffer = context->getGLState().getTargetFramebuffer(target); |
| ASSERT(framebuffer); |
| if (framebuffer->id() == 0) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "Default framebuffer is bound to target.")); |
| return false; |
| } |
| return true; |
| } |
| |
| bool ValidationGetFramebufferParameteri(Context *context, |
| GLenum target, |
| GLenum pname, |
| GLint *params) |
| { |
| if (context->getClientVersion() < ES_3_1) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Context does not support GLES3.1.")); |
| return false; |
| } |
| |
| if (!ValidFramebufferTarget(target)) |
| { |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid framebuffer target.")); |
| return false; |
| } |
| |
| switch (pname) |
| { |
| case GL_FRAMEBUFFER_DEFAULT_WIDTH: |
| case GL_FRAMEBUFFER_DEFAULT_HEIGHT: |
| case GL_FRAMEBUFFER_DEFAULT_SAMPLES: |
| case GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS: |
| break; |
| default: |
| context->handleError(Error(GL_INVALID_ENUM, "Invalid pname: 0x%X", pname)); |
| return false; |
| } |
| |
| const Framebuffer *framebuffer = context->getGLState().getTargetFramebuffer(target); |
| ASSERT(framebuffer); |
| |
| if (framebuffer->id() == 0) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "Default framebuffer is bound to target.")); |
| return false; |
| } |
| return true; |
| } |
| |
| bool ValidateGetProgramResourceIndex(Context *context, |
| GLuint program, |
| GLenum programInterface, |
| const GLchar *name) |
| { |
| if (context->getClientVersion() < ES_3_1) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Context does not support GLES 3.1.")); |
| return false; |
| } |
| |
| Program *programObject = GetValidProgram(context, program); |
| if (programObject == nullptr) |
| { |
| return false; |
| } |
| |
| if (!ValidateNamedProgramInterface(programInterface)) |
| { |
| context->handleError( |
| Error(GL_INVALID_ENUM, "Invalid program interface: 0x%X", programInterface)); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateBindVertexBuffer(ValidationContext *context, |
| GLuint bindingIndex, |
| GLuint buffer, |
| GLintptr offset, |
| GLsizei stride) |
| { |
| if (context->getClientVersion() < ES_3_1) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Context does not support GLES3.1.")); |
| return false; |
| } |
| |
| if (!context->isBufferGenerated(buffer)) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Buffer is not generated.")); |
| return false; |
| } |
| |
| const Caps &caps = context->getCaps(); |
| if (bindingIndex >= caps.maxVertexAttribBindings) |
| { |
| context->handleError(Error( |
| GL_INVALID_VALUE, "bindingindex must be smaller than MAX_VERTEX_ATTRIB_BINDINGS.")); |
| return false; |
| } |
| |
| if (offset < 0) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "offset cannot be negative.")); |
| return false; |
| } |
| |
| if (stride < 0 || stride > caps.maxVertexAttribStride) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, "stride must be between 0 and MAX_VERTEX_ATTRIB_STRIDE.")); |
| return false; |
| } |
| |
| // [OpenGL ES 3.1] Section 10.3.1 page 244: |
| // An INVALID_OPERATION error is generated if the default vertex array object is bound. |
| if (context->getGLState().getVertexArrayId() == 0) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Default vertex array buffer is bound.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateVertexBindingDivisor(ValidationContext *context, GLuint bindingIndex, GLuint divisor) |
| { |
| if (context->getClientVersion() < ES_3_1) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Context does not support GLES3.1.")); |
| return false; |
| } |
| |
| const Caps &caps = context->getCaps(); |
| if (bindingIndex >= caps.maxVertexAttribBindings) |
| { |
| context->handleError(Error( |
| GL_INVALID_VALUE, "bindingindex must be smaller than MAX_VERTEX_ATTRIB_BINDINGS.")); |
| return false; |
| } |
| |
| // [OpenGL ES 3.1] Section 10.3.1 page 243: |
| // An INVALID_OPERATION error is generated if the default vertex array object is bound. |
| if (context->getGLState().getVertexArrayId() == 0) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Default vertex array object is bound.")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateVertexAttribFormat(ValidationContext *context, |
| GLuint attribIndex, |
| GLint size, |
| GLenum type, |
| GLuint relativeOffset, |
| GLboolean pureInteger) |
| { |
| if (context->getClientVersion() < ES_3_1) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Context does not support GLES3.1.")); |
| return false; |
| } |
| |
| const Caps &caps = context->getCaps(); |
| if (relativeOffset > static_cast<GLuint>(caps.maxVertexAttribRelativeOffset)) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, |
| "relativeOffset cannot be greater than MAX_VERTEX_ATTRIB_RELATIVE_OFFSET.")); |
| return false; |
| } |
| |
| // [OpenGL ES 3.1] Section 10.3.1 page 243: |
| // An INVALID_OPERATION error is generated if the default vertex array object is bound. |
| if (context->getGLState().getVertexArrayId() == 0) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Default vertex array object is bound.")); |
| return false; |
| } |
| |
| return ValidateVertexFormatBase(context, attribIndex, size, type, pureInteger); |
| } |
| |
| bool ValidateVertexAttribBinding(ValidationContext *context, |
| GLuint attribIndex, |
| GLuint bindingIndex) |
| { |
| if (context->getClientVersion() < ES_3_1) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Context does not support GLES3.1.")); |
| return false; |
| } |
| |
| // [OpenGL ES 3.1] Section 10.3.1 page 243: |
| // An INVALID_OPERATION error is generated if the default vertex array object is bound. |
| if (context->getGLState().getVertexArrayId() == 0) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Default vertex array object is bound.")); |
| return false; |
| } |
| |
| const Caps &caps = context->getCaps(); |
| if (attribIndex >= caps.maxVertexAttributes) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, "attribindex must be smaller than MAX_VERTEX_ATTRIBS.")); |
| return false; |
| } |
| |
| if (bindingIndex >= caps.maxVertexAttribBindings) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, |
| "bindingindex must be smaller than MAX_VERTEX_ATTRIB_BINDINGS")); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateGetProgramResourceName(Context *context, |
| GLuint program, |
| GLenum programInterface, |
| GLuint index, |
| GLsizei bufSize, |
| GLsizei *length, |
| GLchar *name) |
| { |
| if (context->getClientVersion() < ES_3_1) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Context does not support GLES3.1.")); |
| return false; |
| } |
| |
| Program *programObject = GetValidProgram(context, program); |
| if (programObject == nullptr) |
| { |
| return false; |
| } |
| |
| if (!ValidateNamedProgramInterface(programInterface)) |
| { |
| context->handleError( |
| Error(GL_INVALID_ENUM, "Invalid program interface: 0x%X", programInterface)); |
| return false; |
| } |
| |
| if (!ValidateProgramResourceIndex(programObject, programInterface, index)) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Invalid index: %d", index)); |
| return false; |
| } |
| |
| if (bufSize < 0) |
| { |
| context->handleError(Error(GL_INVALID_VALUE, "Invalid bufSize: %d", bufSize)); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool ValidateDispatchCompute(Context *context, |
| GLuint numGroupsX, |
| GLuint numGroupsY, |
| GLuint numGroupsZ) |
| { |
| if (context->getClientVersion() < ES_3_1) |
| { |
| context->handleError(Error(GL_INVALID_OPERATION, "Context does not support GLES3.1.")); |
| return false; |
| } |
| |
| const State &state = context->getGLState(); |
| Program *program = state.getProgram(); |
| |
| if (program == nullptr) |
| { |
| context->handleError( |
| Error(GL_INVALID_OPERATION, "No active program object for the compute shader stage.")); |
| return false; |
| } |
| |
| if (program->isLinked() == false || program->getAttachedComputeShader() == nullptr) |
| { |
| context->handleError(Error( |
| GL_INVALID_OPERATION, |
| "Program has not been successfully linked, or program contains no compute shaders.")); |
| return false; |
| } |
| |
| const Caps &caps = context->getCaps(); |
| if (numGroupsX > caps.maxComputeWorkGroupCount[0]) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, |
| "num_groups_x cannot be greater than MAX_COMPUTE_WORK_GROUP_COUNT[0](%u).", |
| caps.maxComputeWorkGroupCount[0])); |
| return false; |
| } |
| if (numGroupsY > caps.maxComputeWorkGroupCount[1]) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, |
| "num_groups_y cannot be greater than MAX_COMPUTE_WORK_GROUP_COUNT[1](%u).", |
| caps.maxComputeWorkGroupCount[1])); |
| return false; |
| } |
| if (numGroupsZ > caps.maxComputeWorkGroupCount[2]) |
| { |
| context->handleError( |
| Error(GL_INVALID_VALUE, |
| "num_groups_z cannot be greater than MAX_COMPUTE_WORK_GROUP_COUNT[2](%u).", |
| caps.maxComputeWorkGroupCount[2])); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| } // namespace gl |
