//
// Copyright(c) 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.
//

// entry_points_gles_3_0.cpp : Implements the GLES 3.0 entry points.

#include "libGLESv2/entry_points_gles_3_0.h"
#include "libGLESv2/entry_points_gles_2_0_ext.h"
#include "libGLESv2/global_state.h"

#include "libANGLE/Buffer.h"
#include "libANGLE/Context.h"
#include "libANGLE/Error.h"
#include "libANGLE/Fence.h"
#include "libANGLE/Framebuffer.h"
#include "libANGLE/Query.h"
#include "libANGLE/VertexArray.h"
#include "libANGLE/formatutils.h"

#include "libANGLE/queryconversions.h"
#include "libANGLE/queryutils.h"
#include "libANGLE/validationES.h"
#include "libANGLE/validationES3.h"

#include "common/debug.h"

namespace gl
{

void GL_APIENTRY ReadBuffer(GLenum mode)
{
    EVENT("(GLenum mode = 0x%X)", mode);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() && !ValidateReadBuffer(context, mode))
        {
            return;
        }

        context->readBuffer(mode);
    }
}

void GL_APIENTRY DrawRangeElements(GLenum mode,
                                   GLuint start,
                                   GLuint end,
                                   GLsizei count,
                                   GLenum type,
                                   const void *indices)
{
    EVENT(
        "(GLenum mode = 0x%X, GLuint start = %u, GLuint end = %u, GLsizei count = %d, GLenum type "
        "= 0x%X, "
        "const void* indices = 0x%0.8p)",
        mode, start, end, count, type, indices);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        context->gatherParams<EntryPoint::DrawRangeElements>(mode, start, end, count, type,
                                                             indices);

        if (!context->skipValidation() &&
            !ValidateDrawRangeElements(context, mode, start, end, count, type, indices))
        {
            return;
        }

        context->drawRangeElements(mode, start, end, count, type, indices);
    }
}

void GL_APIENTRY TexImage3D(GLenum target,
                            GLint level,
                            GLint internalformat,
                            GLsizei width,
                            GLsizei height,
                            GLsizei depth,
                            GLint border,
                            GLenum format,
                            GLenum type,
                            const void *pixels)
{
    EVENT(
        "(GLenum target = 0x%X, GLint level = %d, GLint internalformat = %d, GLsizei width = %d, "
        "GLsizei height = %d, GLsizei depth = %d, GLint border = %d, GLenum format = 0x%X, "
        "GLenum type = 0x%X, const void* pixels = 0x%0.8p)",
        target, level, internalformat, width, height, depth, border, format, type, pixels);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() &&
            !ValidateTexImage3D(context, target, level, internalformat, width, height, depth,
                                border, format, type, pixels))
        {
            return;
        }

        context->texImage3D(target, level, internalformat, width, height, depth, border, format,
                            type, pixels);
    }
}

void GL_APIENTRY TexSubImage3D(GLenum target,
                               GLint level,
                               GLint xoffset,
                               GLint yoffset,
                               GLint zoffset,
                               GLsizei width,
                               GLsizei height,
                               GLsizei depth,
                               GLenum format,
                               GLenum type,
                               const void *pixels)
{
    EVENT(
        "(GLenum target = 0x%X, GLint level = %d, GLint xoffset = %d, GLint yoffset = %d, "
        "GLint zoffset = %d, GLsizei width = %d, GLsizei height = %d, GLsizei depth = %d, "
        "GLenum format = 0x%X, GLenum type = 0x%X, const void* pixels = 0x%0.8p)",
        target, level, xoffset, yoffset, zoffset, width, height, depth, format, type, pixels);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() &&
            !ValidateTexSubImage3D(context, target, level, xoffset, yoffset, zoffset, width, height,
                                   depth, format, type, pixels))
        {
            return;
        }

        context->texSubImage3D(target, level, xoffset, yoffset, zoffset, width, height, depth,
                               format, type, pixels);
    }
}

void GL_APIENTRY CopyTexSubImage3D(GLenum target,
                                   GLint level,
                                   GLint xoffset,
                                   GLint yoffset,
                                   GLint zoffset,
                                   GLint x,
                                   GLint y,
                                   GLsizei width,
                                   GLsizei height)
{
    EVENT(
        "(GLenum target = 0x%X, GLint level = %d, GLint xoffset = %d, GLint yoffset = %d, "
        "GLint zoffset = %d, GLint x = %d, GLint y = %d, GLsizei width = %d, GLsizei height = %d)",
        target, level, xoffset, yoffset, zoffset, x, y, width, height);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() &&
            !ValidateCopyTexSubImage3D(context, target, level, xoffset, yoffset, zoffset, x, y,
                                       width, height))
        {
            return;
        }

        context->copyTexSubImage3D(target, level, xoffset, yoffset, zoffset, x, y, width, height);
    }
}

void GL_APIENTRY CompressedTexImage3D(GLenum target,
                                      GLint level,
                                      GLenum internalformat,
                                      GLsizei width,
                                      GLsizei height,
                                      GLsizei depth,
                                      GLint border,
                                      GLsizei imageSize,
                                      const void *data)
{
    EVENT(
        "(GLenum target = 0x%X, GLint level = %d, GLenum internalformat = 0x%X, GLsizei width = "
        "%d, "
        "GLsizei height = %d, GLsizei depth = %d, GLint border = %d, GLsizei imageSize = %d, "
        "const void* data = 0x%0.8p)",
        target, level, internalformat, width, height, depth, border, imageSize, data);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() &&
            !ValidateCompressedTexImage3D(context, target, level, internalformat, width, height,
                                          depth, border, imageSize, data))
        {
            return;
        }

        context->compressedTexImage3D(target, level, internalformat, width, height, depth, border,
                                      imageSize, data);
    }
}

void GL_APIENTRY CompressedTexSubImage3D(GLenum target,
                                         GLint level,
                                         GLint xoffset,
                                         GLint yoffset,
                                         GLint zoffset,
                                         GLsizei width,
                                         GLsizei height,
                                         GLsizei depth,
                                         GLenum format,
                                         GLsizei imageSize,
                                         const void *data)
{
    EVENT(
        "(GLenum target = 0x%X, GLint level = %d, GLint xoffset = %d, GLint yoffset = %d, "
        "GLint zoffset = %d, GLsizei width = %d, GLsizei height = %d, GLsizei depth = %d, "
        "GLenum format = 0x%X, GLsizei imageSize = %d, const void* data = 0x%0.8p)",
        target, level, xoffset, yoffset, zoffset, width, height, depth, format, imageSize, data);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() &&
            !ValidateCompressedTexSubImage3D(context, target, level, xoffset, yoffset, zoffset,
                                             width, height, depth, format, imageSize, data))
        {
            return;
        }

        context->compressedTexSubImage3D(target, level, xoffset, yoffset, zoffset, width, height,
                                         depth, format, imageSize, data);
    }
}

void GL_APIENTRY GenQueries(GLsizei n, GLuint *ids)
{
    EVENT("(GLsizei n = %d, GLuint* ids = 0x%0.8p)", n, ids);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() && !ValidateGenQueries(context, n, ids))
        {
            return;
        }

        for (GLsizei i = 0; i < n; i++)
        {
            ids[i] = context->createQuery();
        }
    }
}

void GL_APIENTRY DeleteQueries(GLsizei n, const GLuint *ids)
{
    EVENT("(GLsizei n = %d, GLuint* ids = 0x%0.8p)", n, ids);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() && !ValidateDeleteQueries(context, n, ids))
        {
            return;
        }

        for (int i = 0; i < n; i++)
        {
            context->deleteQuery(ids[i]);
        }
    }
}

GLboolean GL_APIENTRY IsQuery(GLuint id)
{
    EVENT("(GLuint id = %u)", id);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (context->getClientMajorVersion() < 3)
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return GL_FALSE;
        }

        return (context->getQuery(id, false, GL_NONE) != nullptr) ? GL_TRUE : GL_FALSE;
    }

    return GL_FALSE;
}

void GL_APIENTRY BeginQuery(GLenum target, GLuint id)
{
    EVENT("(GLenum target = 0x%X, GLuint id = %u)", target, id);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!ValidateBeginQuery(context, target, id))
        {
            return;
        }

        Error error = context->beginQuery(target, id);
        if (error.isError())
        {
            context->handleError(error);
            return;
        }
    }
}

void GL_APIENTRY EndQuery(GLenum target)
{
    EVENT("(GLenum target = 0x%X)", target);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!ValidateEndQuery(context, target))
        {
            return;
        }

        Error error = context->endQuery(target);
        if (error.isError())
        {
            context->handleError(error);
            return;
        }
    }
}

void GL_APIENTRY GetQueryiv(GLenum target, GLenum pname, GLint *params)
{
    EVENT("(GLenum target = 0x%X, GLenum pname = 0x%X, GLint* params = 0x%0.8p)", target, pname,
          params);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!ValidateGetQueryiv(context, target, pname, params))
        {
            return;
        }

        context->getQueryiv(target, pname, params);
    }
}

void GL_APIENTRY GetQueryObjectuiv(GLuint id, GLenum pname, GLuint *params)
{
    EVENT("(GLuint id = %u, GLenum pname = 0x%X, GLint* params = 0x%0.8p)", id, pname, params);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!ValidateGetQueryObjectuiv(context, id, pname, params))
        {
            return;
        }

        context->getQueryObjectuiv(id, pname, params);
    }
}

GLboolean GL_APIENTRY UnmapBuffer(GLenum target)
{
    EVENT("(GLenum target = 0x%X)", target);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() && !ValidateUnmapBuffer(context, target))
        {
            return GL_FALSE;
        }

        return context->unmapBuffer(target);
    }

    return GL_FALSE;
}

void GL_APIENTRY GetBufferPointerv(GLenum target, GLenum pname, void **params)
{
    EVENT("(GLenum target = 0x%X, GLenum pname = 0x%X, void** params = 0x%0.8p)", target, pname,
          params);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() &&
            !ValidateGetBufferPointerv(context, target, pname, params))
        {
            return;
        }

        context->getBufferPointerv(target, pname, params);
    }
}

void GL_APIENTRY DrawBuffers(GLsizei n, const GLenum *bufs)
{
    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() && !ValidateDrawBuffers(context, n, bufs))
        {
            return;
        }

        context->drawBuffers(n, bufs);
    }
}

void GL_APIENTRY UniformMatrix2x3fv(GLint location,
                                    GLsizei count,
                                    GLboolean transpose,
                                    const GLfloat *value)
{
    EVENT(
        "(GLint location = %d, GLsizei count = %d, GLboolean transpose = %u, const GLfloat* value "
        "= 0x%0.8p)",
        location, count, transpose, value);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!ValidateUniformMatrix(context, GL_FLOAT_MAT2x3, location, count, transpose))
        {
            return;
        }

        Program *program = context->getGLState().getProgram();
        program->setUniformMatrix2x3fv(location, count, transpose, value);
    }
}

void GL_APIENTRY UniformMatrix3x2fv(GLint location,
                                    GLsizei count,
                                    GLboolean transpose,
                                    const GLfloat *value)
{
    EVENT(
        "(GLint location = %d, GLsizei count = %d, GLboolean transpose = %u, const GLfloat* value "
        "= 0x%0.8p)",
        location, count, transpose, value);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!ValidateUniformMatrix(context, GL_FLOAT_MAT3x2, location, count, transpose))
        {
            return;
        }

        Program *program = context->getGLState().getProgram();
        program->setUniformMatrix3x2fv(location, count, transpose, value);
    }
}

void GL_APIENTRY UniformMatrix2x4fv(GLint location,
                                    GLsizei count,
                                    GLboolean transpose,
                                    const GLfloat *value)
{
    EVENT(
        "(GLint location = %d, GLsizei count = %d, GLboolean transpose = %u, const GLfloat* value "
        "= 0x%0.8p)",
        location, count, transpose, value);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!ValidateUniformMatrix(context, GL_FLOAT_MAT2x4, location, count, transpose))
        {
            return;
        }

        Program *program = context->getGLState().getProgram();
        program->setUniformMatrix2x4fv(location, count, transpose, value);
    }
}

void GL_APIENTRY UniformMatrix4x2fv(GLint location,
                                    GLsizei count,
                                    GLboolean transpose,
                                    const GLfloat *value)
{
    EVENT(
        "(GLint location = %d, GLsizei count = %d, GLboolean transpose = %u, const GLfloat* value "
        "= 0x%0.8p)",
        location, count, transpose, value);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!ValidateUniformMatrix(context, GL_FLOAT_MAT4x2, location, count, transpose))
        {
            return;
        }

        Program *program = context->getGLState().getProgram();
        program->setUniformMatrix4x2fv(location, count, transpose, value);
    }
}

void GL_APIENTRY UniformMatrix3x4fv(GLint location,
                                    GLsizei count,
                                    GLboolean transpose,
                                    const GLfloat *value)
{
    EVENT(
        "(GLint location = %d, GLsizei count = %d, GLboolean transpose = %u, const GLfloat* value "
        "= 0x%0.8p)",
        location, count, transpose, value);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!ValidateUniformMatrix(context, GL_FLOAT_MAT3x4, location, count, transpose))
        {
            return;
        }

        Program *program = context->getGLState().getProgram();
        program->setUniformMatrix3x4fv(location, count, transpose, value);
    }
}

void GL_APIENTRY UniformMatrix4x3fv(GLint location,
                                    GLsizei count,
                                    GLboolean transpose,
                                    const GLfloat *value)
{
    EVENT(
        "(GLint location = %d, GLsizei count = %d, GLboolean transpose = %u, const GLfloat* value "
        "= 0x%0.8p)",
        location, count, transpose, value);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!ValidateUniformMatrix(context, GL_FLOAT_MAT4x3, location, count, transpose))
        {
            return;
        }

        Program *program = context->getGLState().getProgram();
        program->setUniformMatrix4x3fv(location, count, transpose, value);
    }
}

void GL_APIENTRY BlitFramebuffer(GLint srcX0,
                                 GLint srcY0,
                                 GLint srcX1,
                                 GLint srcY1,
                                 GLint dstX0,
                                 GLint dstY0,
                                 GLint dstX1,
                                 GLint dstY1,
                                 GLbitfield mask,
                                 GLenum filter)
{
    EVENT(
        "(GLint srcX0 = %d, GLint srcY0 = %d, GLint srcX1 = %d, GLint srcY1 = %d, GLint dstX0 = "
        "%d, "
        "GLint dstY0 = %d, GLint dstX1 = %d, GLint dstY1 = %d, GLbitfield mask = 0x%X, GLenum "
        "filter = 0x%X)",
        srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask, filter);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() &&
            !ValidateBlitFramebuffer(context, srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1,
                                     dstY1, mask, filter))
        {
            return;
        }

        context->blitFramebuffer(srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask,
                                 filter);
    }
}

void GL_APIENTRY RenderbufferStorageMultisample(GLenum target,
                                                GLsizei samples,
                                                GLenum internalformat,
                                                GLsizei width,
                                                GLsizei height)
{
    EVENT(
        "(GLenum target = 0x%X, GLsizei samples = %d, GLenum internalformat = 0x%X, GLsizei width "
        "= %d, GLsizei height = %d)",
        target, samples, internalformat, width, height);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() &&
            !ValidateRenderbufferStorageMultisample(context, target, samples, internalformat, width,
                                                    height))
        {
            return;
        }

        context->renderbufferStorageMultisample(target, samples, internalformat, width, height);
    }
}

void GL_APIENTRY
FramebufferTextureLayer(GLenum target, GLenum attachment, GLuint texture, GLint level, GLint layer)
{
    EVENT(
        "(GLenum target = 0x%X, GLenum attachment = 0x%X, GLuint texture = %u, GLint level = %d, "
        "GLint layer = %d)",
        target, attachment, texture, level, layer);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() &&
            !ValidateFramebufferTextureLayer(context, target, attachment, texture, level, layer))
        {
            return;
        }

        context->framebufferTextureLayer(target, attachment, texture, level, layer);
    }
}

void *GL_APIENTRY MapBufferRange(GLenum target,
                                 GLintptr offset,
                                 GLsizeiptr length,
                                 GLbitfield access)
{
    EVENT(
        "(GLenum target = 0x%X, GLintptr offset = %d, GLsizeiptr length = %d, GLbitfield access = "
        "0x%X)",
        target, offset, length, access);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() &&
            !ValidateMapBufferRange(context, target, offset, length, access))
        {
            return nullptr;
        }

        return context->mapBufferRange(target, offset, length, access);
    }

    return nullptr;
}

void GL_APIENTRY FlushMappedBufferRange(GLenum target, GLintptr offset, GLsizeiptr length)
{
    EVENT("(GLenum target = 0x%X, GLintptr offset = %d, GLsizeiptr length = %d)", target, offset,
          length);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() &&
            !ValidateFlushMappedBufferRange(context, target, offset, length))
        {
            return;
        }

        context->flushMappedBufferRange(target, offset, length);
    }
}

void GL_APIENTRY BindVertexArray(GLuint array)
{
    EVENT("(GLuint array = %u)", array);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!ValidateBindVertexArray(context, array))
        {
            return;
        }

        context->bindVertexArray(array);
    }
}

void GL_APIENTRY DeleteVertexArrays(GLsizei n, const GLuint *arrays)
{
    EVENT("(GLsizei n = %d, const GLuint* arrays = 0x%0.8p)", n, arrays);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() && !ValidateDeleteVertexArrays(context, n, arrays))
        {
            return;
        }

        for (int arrayIndex = 0; arrayIndex < n; arrayIndex++)
        {
            if (arrays[arrayIndex] != 0)
            {
                context->deleteVertexArray(arrays[arrayIndex]);
            }
        }
    }
}

void GL_APIENTRY GenVertexArrays(GLsizei n, GLuint *arrays)
{
    EVENT("(GLsizei n = %d, GLuint* arrays = 0x%0.8p)", n, arrays);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() && !ValidateGenVertexArrays(context, n, arrays))
        {
            return;
        }

        for (int arrayIndex = 0; arrayIndex < n; arrayIndex++)
        {
            arrays[arrayIndex] = context->createVertexArray();
        }
    }
}

GLboolean GL_APIENTRY IsVertexArray(GLuint array)
{
    EVENT("(GLuint array = %u)", array);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!ValidateIsVertexArray(context))
        {
            return GL_FALSE;
        }

        if (array == 0)
        {
            return GL_FALSE;
        }

        VertexArray *vao = context->getVertexArray(array);

        return (vao != nullptr ? GL_TRUE : GL_FALSE);
    }

    return GL_FALSE;
}

void GL_APIENTRY GetIntegeri_v(GLenum target, GLuint index, GLint *data)
{
    EVENT("(GLenum target = 0x%X, GLuint index = %u, GLint* data = 0x%0.8p)", target, index, data);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() && !ValidateGetIntegeri_v(context, target, index, data))
        {
            return;
        }
        context->getIntegeri_v(target, index, data);
    }
}

void GL_APIENTRY BeginTransformFeedback(GLenum primitiveMode)
{
    EVENT("(GLenum primitiveMode = 0x%X)", primitiveMode);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() && !ValidateBeginTransformFeedback(context, primitiveMode))
        {
            return;
        }

        context->beginTransformFeedback(primitiveMode);
    }
}

void GL_APIENTRY EndTransformFeedback(void)
{
    EVENT("(void)");

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (context->getClientMajorVersion() < 3)
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return;
        }

        TransformFeedback *transformFeedback = context->getGLState().getCurrentTransformFeedback();
        ASSERT(transformFeedback != nullptr);

        if (!transformFeedback->isActive())
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return;
        }

        transformFeedback->end(context);
    }
}

void GL_APIENTRY
BindBufferRange(GLenum target, GLuint index, GLuint buffer, GLintptr offset, GLsizeiptr size)
{
    EVENT(
        "(GLenum target = 0x%X, GLuint index = %u, GLuint buffer = %u, GLintptr offset = %d, "
        "GLsizeiptr size = %d)",
        target, index, buffer, offset, size);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() &&
            !ValidateBindBufferRange(context, target, index, buffer, offset, size))
        {
            return;
        }
        context->bindBufferRange(target, index, buffer, offset, size);
    }
}

void GL_APIENTRY BindBufferBase(GLenum target, GLuint index, GLuint buffer)
{
    EVENT("(GLenum target = 0x%X, GLuint index = %u, GLuint buffer = %u)", target, index, buffer);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() && !ValidateBindBufferBase(context, target, index, buffer))
        {
            return;
        }
        context->bindBufferBase(target, index, buffer);
    }
}

void GL_APIENTRY TransformFeedbackVaryings(GLuint program,
                                           GLsizei count,
                                           const GLchar *const *varyings,
                                           GLenum bufferMode)
{
    EVENT(
        "(GLuint program = %u, GLsizei count = %d, const GLchar* const* varyings = 0x%0.8p, GLenum "
        "bufferMode = 0x%X)",
        program, count, varyings, bufferMode);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (context->getClientMajorVersion() < 3)
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return;
        }

        if (count < 0)
        {
            context->handleError(Error(GL_INVALID_VALUE));
            return;
        }

        const Caps &caps = context->getCaps();
        switch (bufferMode)
        {
            case GL_INTERLEAVED_ATTRIBS:
                break;
            case GL_SEPARATE_ATTRIBS:
                if (static_cast<GLuint>(count) > caps.maxTransformFeedbackSeparateAttributes)
                {
                    context->handleError(Error(GL_INVALID_VALUE));
                    return;
                }
                break;
            default:
                context->handleError(Error(GL_INVALID_ENUM));
                return;
        }

        Program *programObject = GetValidProgram(context, program);
        if (!programObject)
        {
            return;
        }

        programObject->setTransformFeedbackVaryings(count, varyings, bufferMode);
    }
}

void GL_APIENTRY GetTransformFeedbackVarying(GLuint program,
                                             GLuint index,
                                             GLsizei bufSize,
                                             GLsizei *length,
                                             GLsizei *size,
                                             GLenum *type,
                                             GLchar *name)
{
    EVENT(
        "(GLuint program = %u, GLuint index = %u, GLsizei bufSize = %d, GLsizei* length = 0x%0.8p, "
        "GLsizei* size = 0x%0.8p, GLenum* type = 0x%0.8p, GLchar* name = 0x%0.8p)",
        program, index, bufSize, length, size, type, name);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (context->getClientMajorVersion() < 3)
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return;
        }

        if (bufSize < 0)
        {
            context->handleError(Error(GL_INVALID_VALUE));
            return;
        }

        Program *programObject = GetValidProgram(context, program);
        if (!programObject)
        {
            return;
        }

        if (index >= static_cast<GLuint>(programObject->getTransformFeedbackVaryingCount()))
        {
            context->handleError(Error(GL_INVALID_VALUE));
            return;
        }

        programObject->getTransformFeedbackVarying(index, bufSize, length, size, type, name);
    }
}

void GL_APIENTRY
VertexAttribIPointer(GLuint index, GLint size, GLenum type, GLsizei stride, const void *pointer)
{
    EVENT(
        "(GLuint index = %u, GLint size = %d, GLenum type = 0x%X, GLsizei stride = %d, const void* "
        "pointer = 0x%0.8p)",
        index, size, type, stride, pointer);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() &&
            !ValidateVertexAttribIPointer(context, index, size, type, stride, pointer))
        {
            return;
        }

        context->vertexAttribIPointer(index, size, type, stride, pointer);
    }
}

void GL_APIENTRY GetVertexAttribIiv(GLuint index, GLenum pname, GLint *params)
{
    EVENT("(GLuint index = %u, GLenum pname = 0x%X, GLint* params = 0x%0.8p)", index, pname,
          params);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() &&
            !ValidateGetVertexAttribIiv(context, index, pname, params))
        {
            return;
        }

        context->getVertexAttribIiv(index, pname, params);
    }
}

void GL_APIENTRY GetVertexAttribIuiv(GLuint index, GLenum pname, GLuint *params)
{
    EVENT("(GLuint index = %u, GLenum pname = 0x%X, GLuint* params = 0x%0.8p)", index, pname,
          params);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() &&
            !ValidateGetVertexAttribIuiv(context, index, pname, params))
        {
            return;
        }

        context->getVertexAttribIuiv(index, pname, params);
    }
}

void GL_APIENTRY VertexAttribI4i(GLuint index, GLint x, GLint y, GLint z, GLint w)
{
    EVENT("(GLuint index = %u, GLint x = %d, GLint y = %d, GLint z = %d, GLint w = %d)", index, x,
          y, z, w);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (context->getClientMajorVersion() < 3)
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return;
        }

        if (index >= MAX_VERTEX_ATTRIBS)
        {
            context->handleError(Error(GL_INVALID_VALUE));
            return;
        }

        context->vertexAttribI4i(index, x, y, z, w);
    }
}

void GL_APIENTRY VertexAttribI4ui(GLuint index, GLuint x, GLuint y, GLuint z, GLuint w)
{
    EVENT("(GLuint index = %u, GLuint x = %u, GLuint y = %u, GLuint z = %u, GLuint w = %u)", index,
          x, y, z, w);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (context->getClientMajorVersion() < 3)
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return;
        }

        if (index >= MAX_VERTEX_ATTRIBS)
        {
            context->handleError(Error(GL_INVALID_VALUE));
            return;
        }

        context->vertexAttribI4ui(index, x, y, z, w);
    }
}

void GL_APIENTRY VertexAttribI4iv(GLuint index, const GLint *v)
{
    EVENT("(GLuint index = %u, const GLint* v = 0x%0.8p)", index, v);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (context->getClientMajorVersion() < 3)
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return;
        }

        if (index >= MAX_VERTEX_ATTRIBS)
        {
            context->handleError(Error(GL_INVALID_VALUE));
            return;
        }

        context->vertexAttribI4iv(index, v);
    }
}

void GL_APIENTRY VertexAttribI4uiv(GLuint index, const GLuint *v)
{
    EVENT("(GLuint index = %u, const GLuint* v = 0x%0.8p)", index, v);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (context->getClientMajorVersion() < 3)
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return;
        }

        if (index >= MAX_VERTEX_ATTRIBS)
        {
            context->handleError(Error(GL_INVALID_VALUE));
            return;
        }

        context->vertexAttribI4uiv(index, v);
    }
}

void GL_APIENTRY GetUniformuiv(GLuint program, GLint location, GLuint *params)
{
    EVENT("(GLuint program = %u, GLint location = %d, GLuint* params = 0x%0.8p)", program, location,
          params);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!ValidateGetUniformuiv(context, program, location, params))
        {
            return;
        }

        Program *programObject = context->getProgram(program);
        ASSERT(programObject);

        programObject->getUniformuiv(location, params);
    }
}

GLint GL_APIENTRY GetFragDataLocation(GLuint program, const GLchar *name)
{
    EVENT("(GLuint program = %u, const GLchar *name = 0x%0.8p)", program, name);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (context->getClientMajorVersion() < 3)
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return -1;
        }

        if (program == 0)
        {
            context->handleError(Error(GL_INVALID_VALUE));
            return -1;
        }

        Program *programObject = context->getProgram(program);

        if (!programObject || !programObject->isLinked())
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return -1;
        }

        return programObject->getFragDataLocation(name);
    }

    return 0;
}

void GL_APIENTRY Uniform1ui(GLint location, GLuint v0)
{
    Uniform1uiv(location, 1, &v0);
}

void GL_APIENTRY Uniform2ui(GLint location, GLuint v0, GLuint v1)
{
    const GLuint xy[] = {v0, v1};
    Uniform2uiv(location, 1, xy);
}

void GL_APIENTRY Uniform3ui(GLint location, GLuint v0, GLuint v1, GLuint v2)
{
    const GLuint xyz[] = {v0, v1, v2};
    Uniform3uiv(location, 1, xyz);
}

void GL_APIENTRY Uniform4ui(GLint location, GLuint v0, GLuint v1, GLuint v2, GLuint v3)
{
    const GLuint xyzw[] = {v0, v1, v2, v3};
    Uniform4uiv(location, 1, xyzw);
}

void GL_APIENTRY Uniform1uiv(GLint location, GLsizei count, const GLuint *value)
{
    EVENT("(GLint location = %d, GLsizei count = %d, const GLuint* value = 0x%0.8p)", location,
          count, value);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!ValidateUniform(context, GL_UNSIGNED_INT, location, count))
        {
            return;
        }

        Program *program = context->getGLState().getProgram();
        program->setUniform1uiv(location, count, value);
    }
}

void GL_APIENTRY Uniform2uiv(GLint location, GLsizei count, const GLuint *value)
{
    EVENT("(GLint location = %d, GLsizei count = %d, const GLuint* value = 0x%0.8p)", location,
          count, value);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!ValidateUniform(context, GL_UNSIGNED_INT_VEC2, location, count))
        {
            return;
        }

        Program *program = context->getGLState().getProgram();
        program->setUniform2uiv(location, count, value);
    }
}

void GL_APIENTRY Uniform3uiv(GLint location, GLsizei count, const GLuint *value)
{
    EVENT("(GLint location = %d, GLsizei count = %d, const GLuint* value)", location, count, value);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!ValidateUniform(context, GL_UNSIGNED_INT_VEC3, location, count))
        {
            return;
        }

        Program *program = context->getGLState().getProgram();
        program->setUniform3uiv(location, count, value);
    }
}

void GL_APIENTRY Uniform4uiv(GLint location, GLsizei count, const GLuint *value)
{
    EVENT("(GLint location = %d, GLsizei count = %d, const GLuint* value = 0x%0.8p)", location,
          count, value);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!ValidateUniform(context, GL_UNSIGNED_INT_VEC4, location, count))
        {
            return;
        }

        Program *program = context->getGLState().getProgram();
        program->setUniform4uiv(location, count, value);
    }
}

void GL_APIENTRY ClearBufferiv(GLenum buffer, GLint drawbuffer, const GLint *value)
{
    EVENT("(GLenum buffer = 0x%X, GLint drawbuffer = %d, const GLint* value = 0x%0.8p)", buffer,
          drawbuffer, value);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() &&
            !ValidateClearBufferiv(context, buffer, drawbuffer, value))
        {
            return;
        }

        context->clearBufferiv(buffer, drawbuffer, value);
    }
}

void GL_APIENTRY ClearBufferuiv(GLenum buffer, GLint drawbuffer, const GLuint *value)
{
    EVENT("(GLenum buffer = 0x%X, GLint drawbuffer = %d, const GLuint* value = 0x%0.8p)", buffer,
          drawbuffer, value);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() &&
            !ValidateClearBufferuiv(context, buffer, drawbuffer, value))
        {
            return;
        }

        context->clearBufferuiv(buffer, drawbuffer, value);
    }
}

void GL_APIENTRY ClearBufferfv(GLenum buffer, GLint drawbuffer, const GLfloat *value)
{
    EVENT("(GLenum buffer = 0x%X, GLint drawbuffer = %d, const GLfloat* value = 0x%0.8p)", buffer,
          drawbuffer, value);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() &&
            !ValidateClearBufferfv(context, buffer, drawbuffer, value))
        {
            return;
        }

        context->clearBufferfv(buffer, drawbuffer, value);
    }
}

void GL_APIENTRY ClearBufferfi(GLenum buffer, GLint drawbuffer, GLfloat depth, GLint stencil)
{
    EVENT("(GLenum buffer = 0x%X, GLint drawbuffer = %d, GLfloat depth, GLint stencil = %d)",
          buffer, drawbuffer, depth, stencil);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() &&
            !ValidateClearBufferfi(context, buffer, drawbuffer, depth, stencil))
        {
            return;
        }

        context->clearBufferfi(buffer, drawbuffer, depth, stencil);
    }
}

const GLubyte *GL_APIENTRY GetStringi(GLenum name, GLuint index)
{
    EVENT("(GLenum name = 0x%X, GLuint index = %u)", name, index);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() && !ValidateGetStringi(context, name, index))
        {
            return nullptr;
        }

        return context->getStringi(name, index);
    }

    return nullptr;
}

void GL_APIENTRY CopyBufferSubData(GLenum readTarget,
                                   GLenum writeTarget,
                                   GLintptr readOffset,
                                   GLintptr writeOffset,
                                   GLsizeiptr size)
{
    EVENT(
        "(GLenum readTarget = 0x%X, GLenum writeTarget = 0x%X, GLintptr readOffset = %d, GLintptr "
        "writeOffset = %d, GLsizeiptr size = %d)",
        readTarget, writeTarget, readOffset, writeOffset, size);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() &&
            !ValidateCopyBufferSubData(context, readTarget, writeTarget, readOffset, writeOffset,
                                       size))
        {
            return;
        }

        context->copyBufferSubData(readTarget, writeTarget, readOffset, writeOffset, size);
    }
}

void GL_APIENTRY GetUniformIndices(GLuint program,
                                   GLsizei uniformCount,
                                   const GLchar *const *uniformNames,
                                   GLuint *uniformIndices)
{
    EVENT(
        "(GLuint program = %u, GLsizei uniformCount = %d, const GLchar* const* uniformNames = "
        "0x%0.8p, GLuint* uniformIndices = 0x%0.8p)",
        program, uniformCount, uniformNames, uniformIndices);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (context->getClientMajorVersion() < 3)
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return;
        }

        if (uniformCount < 0)
        {
            context->handleError(Error(GL_INVALID_VALUE));
            return;
        }

        Program *programObject = GetValidProgram(context, program);

        if (!programObject)
        {
            return;
        }

        if (!programObject->isLinked())
        {
            for (int uniformId = 0; uniformId < uniformCount; uniformId++)
            {
                uniformIndices[uniformId] = GL_INVALID_INDEX;
            }
        }
        else
        {
            for (int uniformId = 0; uniformId < uniformCount; uniformId++)
            {
                uniformIndices[uniformId] = programObject->getUniformIndex(uniformNames[uniformId]);
            }
        }
    }
}

void GL_APIENTRY GetActiveUniformsiv(GLuint program,
                                     GLsizei uniformCount,
                                     const GLuint *uniformIndices,
                                     GLenum pname,
                                     GLint *params)
{
    EVENT(
        "(GLuint program = %u, GLsizei uniformCount = %d, const GLuint* uniformIndices = 0x%0.8p, "
        "GLenum pname = 0x%X, GLint* params = 0x%0.8p)",
        program, uniformCount, uniformIndices, pname, params);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (context->getClientMajorVersion() < 3)
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return;
        }

        if (uniformCount < 0)
        {
            context->handleError(Error(GL_INVALID_VALUE));
            return;
        }

        Program *programObject = GetValidProgram(context, program);

        if (!programObject)
        {
            return;
        }

        switch (pname)
        {
            case GL_UNIFORM_TYPE:
            case GL_UNIFORM_SIZE:
            case GL_UNIFORM_NAME_LENGTH:
            case GL_UNIFORM_BLOCK_INDEX:
            case GL_UNIFORM_OFFSET:
            case GL_UNIFORM_ARRAY_STRIDE:
            case GL_UNIFORM_MATRIX_STRIDE:
            case GL_UNIFORM_IS_ROW_MAJOR:
                break;

            default:
                context->handleError(Error(GL_INVALID_ENUM));
                return;
        }

        if (uniformCount > programObject->getActiveUniformCount())
        {
            context->handleError(Error(GL_INVALID_VALUE));
            return;
        }

        for (int uniformId = 0; uniformId < uniformCount; uniformId++)
        {
            const GLuint index = uniformIndices[uniformId];

            if (index >= static_cast<GLuint>(programObject->getActiveUniformCount()))
            {
                context->handleError(Error(GL_INVALID_VALUE));
                return;
            }
        }

        for (int uniformId = 0; uniformId < uniformCount; uniformId++)
        {
            const GLuint index = uniformIndices[uniformId];
            params[uniformId]  = programObject->getActiveUniformi(index, pname);
        }
    }
}

GLuint GL_APIENTRY GetUniformBlockIndex(GLuint program, const GLchar *uniformBlockName)
{
    EVENT("(GLuint program = %u, const GLchar* uniformBlockName = 0x%0.8p)", program,
          uniformBlockName);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (context->getClientMajorVersion() < 3)
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return GL_INVALID_INDEX;
        }

        Program *programObject = GetValidProgram(context, program);
        if (!programObject)
        {
            return GL_INVALID_INDEX;
        }

        return programObject->getUniformBlockIndex(uniformBlockName);
    }

    return 0;
}

void GL_APIENTRY GetActiveUniformBlockiv(GLuint program,
                                         GLuint uniformBlockIndex,
                                         GLenum pname,
                                         GLint *params)
{
    EVENT(
        "(GLuint program = %u, GLuint uniformBlockIndex = %u, GLenum pname = 0x%X, GLint* params = "
        "0x%0.8p)",
        program, uniformBlockIndex, pname, params);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() &&
            !ValidateGetActiveUniformBlockiv(context, program, uniformBlockIndex, pname, params))
        {
            return;
        }

        const Program *programObject = context->getProgram(program);
        QueryActiveUniformBlockiv(programObject, uniformBlockIndex, pname, params);
    }
}

void GL_APIENTRY GetActiveUniformBlockName(GLuint program,
                                           GLuint uniformBlockIndex,
                                           GLsizei bufSize,
                                           GLsizei *length,
                                           GLchar *uniformBlockName)
{
    EVENT(
        "(GLuint program = %u, GLuint uniformBlockIndex = %u, GLsizei bufSize = %d, GLsizei* "
        "length = 0x%0.8p, GLchar* uniformBlockName = 0x%0.8p)",
        program, uniformBlockIndex, bufSize, length, uniformBlockName);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (context->getClientMajorVersion() < 3)
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return;
        }

        Program *programObject = GetValidProgram(context, program);

        if (!programObject)
        {
            return;
        }

        if (uniformBlockIndex >= programObject->getActiveUniformBlockCount())
        {
            context->handleError(Error(GL_INVALID_VALUE));
            return;
        }

        programObject->getActiveUniformBlockName(uniformBlockIndex, bufSize, length,
                                                 uniformBlockName);
    }
}

void GL_APIENTRY UniformBlockBinding(GLuint program,
                                     GLuint uniformBlockIndex,
                                     GLuint uniformBlockBinding)
{
    EVENT("(GLuint program = %u, GLuint uniformBlockIndex = %u, GLuint uniformBlockBinding = %u)",
          program, uniformBlockIndex, uniformBlockBinding);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (context->getClientMajorVersion() < 3)
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return;
        }

        if (uniformBlockBinding >= context->getCaps().maxUniformBufferBindings)
        {
            context->handleError(Error(GL_INVALID_VALUE));
            return;
        }

        Program *programObject = GetValidProgram(context, program);

        if (!programObject)
        {
            return;
        }

        // if never linked, there won't be any uniform blocks
        if (uniformBlockIndex >= programObject->getActiveUniformBlockCount())
        {
            context->handleError(Error(GL_INVALID_VALUE));
            return;
        }

        programObject->bindUniformBlock(uniformBlockIndex, uniformBlockBinding);
    }
}

void GL_APIENTRY DrawArraysInstanced(GLenum mode, GLint first, GLsizei count, GLsizei instanceCount)
{
    EVENT("(GLenum mode = 0x%X, GLint first = %d, GLsizei count = %d, GLsizei instanceCount = %d)",
          mode, first, count, instanceCount);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (context->getClientMajorVersion() < 3)
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return;
        }

        if (!ValidateDrawArraysInstanced(context, mode, first, count, instanceCount))
        {
            return;
        }

        context->drawArraysInstanced(mode, first, count, instanceCount);
    }
}

void GL_APIENTRY DrawElementsInstanced(GLenum mode,
                                       GLsizei count,
                                       GLenum type,
                                       const void *indices,
                                       GLsizei instanceCount)
{
    EVENT(
        "(GLenum mode = 0x%X, GLsizei count = %d, GLenum type = 0x%X, const void* indices = "
        "0x%0.8p, GLsizei instanceCount = %d)",
        mode, count, type, indices, instanceCount);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        context->gatherParams<EntryPoint::DrawElementsInstanced>(mode, count, type, indices,
                                                                 instanceCount);

        if (!context->skipValidation() &&
            !ValidateDrawElementsInstanced(context, mode, count, type, indices, instanceCount))
        {
            return;
        }

        context->drawElementsInstanced(mode, count, type, indices, instanceCount);
    }
}

GLsync GL_APIENTRY FenceSync_(GLenum condition, GLbitfield flags)
{
    EVENT("(GLenum condition = 0x%X, GLbitfield flags = 0x%X)", condition, flags);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (context->getClientMajorVersion() < 3)
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return 0;
        }

        if (condition != GL_SYNC_GPU_COMMANDS_COMPLETE)
        {
            context->handleError(Error(GL_INVALID_ENUM));
            return 0;
        }

        if (flags != 0)
        {
            context->handleError(Error(GL_INVALID_VALUE));
            return 0;
        }

        GLsync fenceSync = context->createFenceSync();

        FenceSync *fenceSyncObject = context->getFenceSync(fenceSync);
        Error error                = fenceSyncObject->set(condition, flags);
        if (error.isError())
        {
            context->deleteFenceSync(fenceSync);
            context->handleError(error);
            return nullptr;
        }

        return fenceSync;
    }

    return nullptr;
}

GLboolean GL_APIENTRY IsSync(GLsync sync)
{
    EVENT("(GLsync sync = 0x%0.8p)", sync);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (context->getClientMajorVersion() < 3)
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return GL_FALSE;
        }

        return (context->getFenceSync(sync) != nullptr);
    }

    return GL_FALSE;
}

void GL_APIENTRY DeleteSync(GLsync sync)
{
    EVENT("(GLsync sync = 0x%0.8p)", sync);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (context->getClientMajorVersion() < 3)
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return;
        }

        if (sync != static_cast<GLsync>(0) && !context->getFenceSync(sync))
        {
            context->handleError(Error(GL_INVALID_VALUE));
            return;
        }

        context->deleteFenceSync(sync);
    }
}

GLenum GL_APIENTRY ClientWaitSync(GLsync sync, GLbitfield flags, GLuint64 timeout)
{
    EVENT("(GLsync sync = 0x%0.8p, GLbitfield flags = 0x%X, GLuint64 timeout = %llu)", sync, flags,
          timeout);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (context->getClientMajorVersion() < 3)
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return GL_WAIT_FAILED;
        }

        if ((flags & ~(GL_SYNC_FLUSH_COMMANDS_BIT)) != 0)
        {
            context->handleError(Error(GL_INVALID_VALUE));
            return GL_WAIT_FAILED;
        }

        FenceSync *fenceSync = context->getFenceSync(sync);

        if (!fenceSync)
        {
            context->handleError(Error(GL_INVALID_VALUE));
            return GL_WAIT_FAILED;
        }

        GLenum result = GL_WAIT_FAILED;
        Error error   = fenceSync->clientWait(flags, timeout, &result);
        if (error.isError())
        {
            context->handleError(error);
            return GL_WAIT_FAILED;
        }

        return result;
    }

    return GL_FALSE;
}

void GL_APIENTRY WaitSync(GLsync sync, GLbitfield flags, GLuint64 timeout)
{
    EVENT("(GLsync sync = 0x%0.8p, GLbitfield flags = 0x%X, GLuint64 timeout = %llu)", sync, flags,
          timeout);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (context->getClientMajorVersion() < 3)
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return;
        }

        if (flags != 0)
        {
            context->handleError(Error(GL_INVALID_VALUE));
            return;
        }

        if (timeout != GL_TIMEOUT_IGNORED)
        {
            context->handleError(Error(GL_INVALID_VALUE));
            return;
        }

        FenceSync *fenceSync = context->getFenceSync(sync);

        if (!fenceSync)
        {
            context->handleError(Error(GL_INVALID_VALUE));
            return;
        }

        Error error = fenceSync->serverWait(flags, timeout);
        if (error.isError())
        {
            context->handleError(error);
        }
    }
}

void GL_APIENTRY GetInteger64v(GLenum pname, GLint64 *params)
{
    EVENT("(GLenum pname = 0x%X, GLint64* params = 0x%0.8p)", pname, params);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (context->getClientMajorVersion() < 3)
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return;
        }

        GLenum nativeType;
        unsigned int numParams = 0;
        if (!ValidateStateQuery(context, pname, &nativeType, &numParams))
        {
            return;
        }

        if (nativeType == GL_INT_64_ANGLEX)
        {
            context->getInteger64v(pname, params);
        }
        else
        {
            CastStateValues(context, nativeType, pname, numParams, params);
        }
    }
}

void GL_APIENTRY
GetSynciv(GLsync sync, GLenum pname, GLsizei bufSize, GLsizei *length, GLint *values)
{
    EVENT(
        "(GLsync sync = 0x%0.8p, GLenum pname = 0x%X, GLsizei bufSize = %d, GLsizei* length = "
        "0x%0.8p, GLint* values = 0x%0.8p)",
        sync, pname, bufSize, length, values);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() &&
            !ValidateGetSynciv(context, sync, pname, bufSize, length, values))
        {
            return;
        }

        context->getSynciv(sync, pname, bufSize, length, values);
    }
}

void GL_APIENTRY GetInteger64i_v(GLenum target, GLuint index, GLint64 *data)
{
    EVENT("(GLenum target = 0x%X, GLuint index = %u, GLint64* data = 0x%0.8p)", target, index,
          data);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() && !ValidateGetInteger64i_v(context, target, index, data))
        {
            return;
        }
        context->getInteger64i_v(target, index, data);
    }
}

void GL_APIENTRY GetBufferParameteri64v(GLenum target, GLenum pname, GLint64 *params)
{
    EVENT("(GLenum target = 0x%X, GLenum pname = 0x%X, GLint64* params = 0x%0.8p)", target, pname,
          params);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() &&
            !ValidateGetBufferParameteri64v(context, target, pname, params))
        {
            return;
        }

        Buffer *buffer = context->getGLState().getTargetBuffer(target);
        QueryBufferParameteri64v(buffer, pname, params);
    }
}

void GL_APIENTRY GenSamplers(GLsizei count, GLuint *samplers)
{
    EVENT("(GLsizei count = %d, GLuint* samplers = 0x%0.8p)", count, samplers);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() && !ValidateGenSamplers(context, count, samplers))
        {
            return;
        }

        for (int i = 0; i < count; i++)
        {
            samplers[i] = context->createSampler();
        }
    }
}

void GL_APIENTRY DeleteSamplers(GLsizei count, const GLuint *samplers)
{
    EVENT("(GLsizei count = %d, const GLuint* samplers = 0x%0.8p)", count, samplers);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() && !ValidateDeleteSamplers(context, count, samplers))
        {
            return;
        }

        for (int i = 0; i < count; i++)
        {
            context->deleteSampler(samplers[i]);
        }
    }
}

GLboolean GL_APIENTRY IsSampler(GLuint sampler)
{
    EVENT("(GLuint sampler = %u)", sampler);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (context->getClientMajorVersion() < 3)
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return GL_FALSE;
        }

        return context->isSampler(sampler);
    }

    return GL_FALSE;
}

void GL_APIENTRY BindSampler(GLuint unit, GLuint sampler)
{
    EVENT("(GLuint unit = %u, GLuint sampler = %u)", unit, sampler);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (context->getClientMajorVersion() < 3)
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return;
        }

        if (sampler != 0 && !context->isSampler(sampler))
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return;
        }

        if (unit >= context->getCaps().maxCombinedTextureImageUnits)
        {
            context->handleError(Error(GL_INVALID_VALUE));
            return;
        }

        context->bindSampler(unit, sampler);
    }
}

void GL_APIENTRY SamplerParameteri(GLuint sampler, GLenum pname, GLint param)
{
    EVENT("(GLuint sampler = %u, GLenum pname = 0x%X, GLint param = %d)", sampler, pname, param);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() &&
            !ValidateSamplerParameteri(context, sampler, pname, param))
        {
            return;
        }

        context->samplerParameteri(sampler, pname, param);
    }
}

void GL_APIENTRY SamplerParameteriv(GLuint sampler, GLenum pname, const GLint *param)
{
    EVENT("(GLuint sampler = %u, GLenum pname = 0x%X, const GLint* params = 0x%0.8p)", sampler,
          pname, param);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() &&
            !ValidateSamplerParameteriv(context, sampler, pname, param))
        {
            return;
        }

        context->samplerParameteriv(sampler, pname, param);
    }
}

void GL_APIENTRY SamplerParameterf(GLuint sampler, GLenum pname, GLfloat param)
{
    EVENT("(GLuint sampler = %u, GLenum pname = 0x%X, GLfloat param = %g)", sampler, pname, param);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() &&
            !ValidateSamplerParameterf(context, sampler, pname, param))
        {
            return;
        }

        context->samplerParameterf(sampler, pname, param);
    }
}

void GL_APIENTRY SamplerParameterfv(GLuint sampler, GLenum pname, const GLfloat *param)
{
    EVENT("(GLuint sampler = %u, GLenum pname = 0x%X, const GLfloat* params = 0x%0.8p)", sampler,
          pname, param);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() &&
            !ValidateSamplerParameterfv(context, sampler, pname, param))
        {
            return;
        }

        context->samplerParameterfv(sampler, pname, param);
    }
}

void GL_APIENTRY GetSamplerParameteriv(GLuint sampler, GLenum pname, GLint *params)
{
    EVENT("(GLuint sampler = %u, GLenum pname = 0x%X, GLint* params = 0x%0.8p)", sampler, pname,
          params);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() &&
            !ValidateGetSamplerParameteriv(context, sampler, pname, params))
        {
            return;
        }

        context->getSamplerParameteriv(sampler, pname, params);
    }
}

void GL_APIENTRY GetSamplerParameterfv(GLuint sampler, GLenum pname, GLfloat *params)
{
    EVENT("(GLuint sample = %ur, GLenum pname = 0x%X, GLfloat* params = 0x%0.8p)", sampler, pname,
          params);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() &&
            !ValidateGetSamplerParameterfv(context, sampler, pname, params))
        {
            return;
        }

        context->getSamplerParameterfv(sampler, pname, params);
    }
}

void GL_APIENTRY VertexAttribDivisor(GLuint index, GLuint divisor)
{
    EVENT("(GLuint index = %u, GLuint divisor = %u)", index, divisor);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (context->getClientMajorVersion() < 3)
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return;
        }

        if (index >= MAX_VERTEX_ATTRIBS)
        {
            context->handleError(Error(GL_INVALID_VALUE));
            return;
        }

        context->setVertexAttribDivisor(index, divisor);
    }
}

void GL_APIENTRY BindTransformFeedback(GLenum target, GLuint id)
{
    EVENT("(GLenum target = 0x%X, GLuint id = %u)", target, id);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (context->getClientMajorVersion() < 3)
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return;
        }

        switch (target)
        {
            case GL_TRANSFORM_FEEDBACK:
            {
                // Cannot bind a transform feedback object if the current one is started and not
                // paused (3.0.2 pg 85 section 2.14.1)
                TransformFeedback *curTransformFeedback =
                    context->getGLState().getCurrentTransformFeedback();
                if (curTransformFeedback && curTransformFeedback->isActive() &&
                    !curTransformFeedback->isPaused())
                {
                    context->handleError(Error(GL_INVALID_OPERATION));
                    return;
                }

                // Cannot bind a transform feedback object that does not exist (3.0.2 pg 85 section
                // 2.14.1)
                if (!context->isTransformFeedbackGenerated(id))
                {
                    context->handleError(
                        Error(GL_INVALID_OPERATION,
                              "Cannot bind a transform feedback object that does not exist."));
                    return;
                }

                context->bindTransformFeedback(id);
            }
            break;

            default:
                context->handleError(Error(GL_INVALID_ENUM));
                return;
        }
    }
}

void GL_APIENTRY DeleteTransformFeedbacks(GLsizei n, const GLuint *ids)
{
    EVENT("(GLsizei n = %d, const GLuint* ids = 0x%0.8p)", n, ids);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() && !ValidateDeleteTransformFeedbacks(context, n, ids))
        {
            return;
        }

        for (int i = 0; i < n; i++)
        {
            context->deleteTransformFeedback(ids[i]);
        }
    }
}

void GL_APIENTRY GenTransformFeedbacks(GLsizei n, GLuint *ids)
{
    EVENT("(GLsizei n = %d, GLuint* ids = 0x%0.8p)", n, ids);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() && !ValidateGenTransformFeedbacks(context, n, ids))
        {
            return;
        }

        for (int i = 0; i < n; i++)
        {
            ids[i] = context->createTransformFeedback();
        }
    }
}

GLboolean GL_APIENTRY IsTransformFeedback(GLuint id)
{
    EVENT("(GLuint id = %u)", id);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (context->getClientMajorVersion() < 3)
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return GL_FALSE;
        }

        if (id == 0)
        {
            // The 3.0.4 spec [section 6.1.11] states that if ID is zero, IsTransformFeedback
            // returns FALSE
            return GL_FALSE;
        }

        const TransformFeedback *transformFeedback = context->getTransformFeedback(id);
        return ((transformFeedback != nullptr) ? GL_TRUE : GL_FALSE);
    }

    return GL_FALSE;
}

void GL_APIENTRY PauseTransformFeedback(void)
{
    EVENT("(void)");

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (context->getClientMajorVersion() < 3)
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return;
        }

        TransformFeedback *transformFeedback = context->getGLState().getCurrentTransformFeedback();
        ASSERT(transformFeedback != nullptr);

        // Current transform feedback must be active and not paused in order to pause (3.0.2 pg 86)
        if (!transformFeedback->isActive() || transformFeedback->isPaused())
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return;
        }

        transformFeedback->pause();
    }
}

void GL_APIENTRY ResumeTransformFeedback(void)
{
    EVENT("(void)");

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (context->getClientMajorVersion() < 3)
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return;
        }

        TransformFeedback *transformFeedback = context->getGLState().getCurrentTransformFeedback();
        ASSERT(transformFeedback != nullptr);

        // Current transform feedback must be active and paused in order to resume (3.0.2 pg 86)
        if (!transformFeedback->isActive() || !transformFeedback->isPaused())
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return;
        }

        transformFeedback->resume();
    }
}

void GL_APIENTRY GetProgramBinary(GLuint program,
                                  GLsizei bufSize,
                                  GLsizei *length,
                                  GLenum *binaryFormat,
                                  void *binary)
{
    EVENT(
        "(GLuint program = %u, GLsizei bufSize = %d, GLsizei* length = 0x%0.8p, GLenum* "
        "binaryFormat = 0x%0.8p, void* binary = 0x%0.8p)",
        program, bufSize, length, binaryFormat, binary);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!ValidateGetProgramBinary(context, program, bufSize, length, binaryFormat, binary))
        {
            return;
        }

        Program *programObject = context->getProgram(program);
        ASSERT(programObject != nullptr);

        Error error = programObject->saveBinary(context, binaryFormat, binary, bufSize, length);
        if (error.isError())
        {
            context->handleError(error);
            return;
        }
    }
}

void GL_APIENTRY ProgramBinary(GLuint program,
                               GLenum binaryFormat,
                               const void *binary,
                               GLsizei length)
{
    EVENT(
        "(GLuint program = %u, GLenum binaryFormat = 0x%X, const void* binary = 0x%0.8p, GLsizei "
        "length = %d)",
        program, binaryFormat, binary, length);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!ValidateProgramBinary(context, program, binaryFormat, binary, length))
        {
            return;
        }

        Program *programObject = context->getProgram(program);
        ASSERT(programObject != nullptr);

        Error error = programObject->loadBinary(context, binaryFormat, binary, length);
        if (error.isError())
        {
            context->handleError(error);
            return;
        }
    }
}

void GL_APIENTRY ProgramParameteri(GLuint program, GLenum pname, GLint value)
{
    EVENT("(GLuint program = %u, GLenum pname = 0x%X, GLint value = %d)", program, pname, value);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() &&
            !ValidateProgramParameteri(context, program, pname, value))
        {
            return;
        }

        context->programParameteri(program, pname, value);
    }
}

void GL_APIENTRY InvalidateFramebuffer(GLenum target,
                                       GLsizei numAttachments,
                                       const GLenum *attachments)
{
    EVENT(
        "(GLenum target = 0x%X, GLsizei numAttachments = %d, const GLenum* attachments = 0x%0.8p)",
        target, numAttachments, attachments);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() &&
            !ValidateInvalidateFramebuffer(context, target, numAttachments, attachments))
        {
            return;
        }

        context->invalidateFramebuffer(target, numAttachments, attachments);
    }
}

void GL_APIENTRY InvalidateSubFramebuffer(GLenum target,
                                          GLsizei numAttachments,
                                          const GLenum *attachments,
                                          GLint x,
                                          GLint y,
                                          GLsizei width,
                                          GLsizei height)
{
    EVENT(
        "(GLenum target = 0x%X, GLsizei numAttachments = %d, const GLenum* attachments = 0x%0.8p, "
        "GLint x = %d, "
        "GLint y = %d, GLsizei width = %d, GLsizei height = %d)",
        target, numAttachments, attachments, x, y, width, height);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() &&
            !ValidateInvalidateFramebuffer(context, target, numAttachments, attachments))
        {
            return;
        }

        context->invalidateSubFramebuffer(target, numAttachments, attachments, x, y, width, height);
    }
}

void GL_APIENTRY
TexStorage2D(GLenum target, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height)
{
    EVENT(
        "(GLenum target = 0x%X, GLsizei levels = %d, GLenum internalformat = 0x%X, GLsizei width = "
        "%d, GLsizei height = %d)",
        target, levels, internalformat, width, height);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (context->getClientMajorVersion() < 3)
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return;
        }

        if (!ValidateES3TexStorage2DParameters(context, target, levels, internalformat, width,
                                               height, 1))
        {
            return;
        }

        Extents size(width, height, 1);
        Texture *texture = context->getTargetTexture(target);
        Error error      = texture->setStorage(context, target, levels, internalformat, size);
        if (error.isError())
        {
            context->handleError(error);
            return;
        }
    }
}

void GL_APIENTRY TexStorage3D(GLenum target,
                              GLsizei levels,
                              GLenum internalformat,
                              GLsizei width,
                              GLsizei height,
                              GLsizei depth)
{
    EVENT(
        "(GLenum target = 0x%X, GLsizei levels = %d, GLenum internalformat = 0x%X, GLsizei width = "
        "%d, "
        "GLsizei height = %d, GLsizei depth = %d)",
        target, levels, internalformat, width, height, depth);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (context->getClientMajorVersion() < 3)
        {
            context->handleError(Error(GL_INVALID_OPERATION));
            return;
        }

        if (!ValidateES3TexStorage3DParameters(context, target, levels, internalformat, width,
                                               height, depth))
        {
            return;
        }

        Extents size(width, height, depth);
        Texture *texture = context->getTargetTexture(target);
        Error error      = texture->setStorage(context, target, levels, internalformat, size);
        if (error.isError())
        {
            context->handleError(error);
            return;
        }
    }
}

void GL_APIENTRY GetInternalformativ(GLenum target,
                                     GLenum internalformat,
                                     GLenum pname,
                                     GLsizei bufSize,
                                     GLint *params)
{
    EVENT(
        "(GLenum target = 0x%X, GLenum internalformat = 0x%X, GLenum pname = 0x%X, GLsizei bufSize "
        "= %d, "
        "GLint* params = 0x%0.8p)",
        target, internalformat, pname, bufSize, params);

    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (!context->skipValidation() &&
            !ValidateGetInternalFormativ(context, target, internalformat, pname, bufSize, params))
        {
            return;
        }

        const TextureCaps &formatCaps = context->getTextureCaps().get(internalformat);
        QueryInternalFormativ(formatCaps, pname, bufSize, params);
    }
}
}