/lib_angle/src/libGLESv2/entry_points_gles_3_0.cpp

Large files files are truncated, but you can click here to view the full file

//
// 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/formatutils.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/validationES.h"
#include "libANGLE/validationES3.h"
#include "libANGLE/queryconversions.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->getClientVersion() < 3)
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return;
        }

        // glReadBuffer
        UNIMPLEMENTED();
    }
}

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

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

        // glDrawRangeElements
        UNIMPLEMENTED();
    }
}

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

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

        // validateES3TexImageFormat sets the error code if there is an error
        if (!ValidateES3TexImageParameters(context, target, level, internalformat, false, false,
                                           0, 0, 0, width, height, depth, border, format, type, pixels))
        {
            return;
        }

        Extents size(width, height, depth);
        Texture *texture = context->getTargetTexture(target);
        Error error = texture->setImage(target, level, internalformat, size, format, type, context->getState().getUnpackState(),
                                        reinterpret_cast<const uint8_t *>(pixels));
        if (error.isError())
        {
            context->recordError(error);
            return;
        }
    }
}

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 GLvoid* 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 GLvoid* pixels = 0x%0.8p)",
          target, level, xoffset, yoffset, zoffset, width, height, depth, format, type, pixels);

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

        // validateES3TexImageFormat sets the error code if there is an error
        if (!ValidateES3TexImageParameters(context, target, level, GL_NONE, false, true,
                                           xoffset, yoffset, zoffset, width, height, depth, 0,
                                           format, type, pixels))
        {
            return;
        }

        // Zero sized uploads are valid but no-ops
        if (width == 0 || height == 0 || depth == 0)
        {
            return;
        }

        Box area(xoffset, yoffset, zoffset, width, height, depth);
        Texture *texture = context->getTargetTexture(target);
        Error error = texture->setSubImage(target, level, area, format, type, context->getState().getUnpackState(),
                                           reinterpret_cast<const uint8_t *>(pixels));
        if (error.isError())
        {
            context->recordError(error);
            return;
        }
    }
}

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->getClientVersion() < 3)
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return;
        }

        if (!ValidateES3CopyTexImageParameters(context, target, level, GL_NONE, true, xoffset, yoffset, zoffset,
                                               x, y, width, height, 0))
        {
            return;
        }

        Offset destOffset(xoffset, yoffset, zoffset);
        Rectangle sourceArea(x, y, width, height);

        const Framebuffer *framebuffer = context->getState().getReadFramebuffer();
        Texture *texture = context->getTargetTexture(target);
        Error error = texture->copySubImage(target, level, destOffset, sourceArea, framebuffer);
        if (error.isError())
        {
            context->recordError(error);
            return;
        }
    }
}

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

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

        const InternalFormat &formatInfo = GetInternalFormatInfo(internalformat);
        if (imageSize < 0 || static_cast<GLuint>(imageSize) != formatInfo.computeBlockSize(GL_UNSIGNED_BYTE, width, height))
        {
            context->recordError(Error(GL_INVALID_VALUE));
            return;
        }

        // validateES3TexImageFormat sets the error code if there is an error
        if (!ValidateES3TexImageParameters(context, target, level, internalformat, true, false,
                                           0, 0, 0, width, height, depth, border, GL_NONE, GL_NONE, data))
        {
            return;
        }

        Extents size(width, height, depth);
        Texture *texture = context->getTargetTexture(target);
        Error error = texture->setCompressedImage(target, level, internalformat, size, context->getState().getUnpackState(),
                                                  reinterpret_cast<const uint8_t *>(data));
        if (error.isError())
        {
            context->recordError(error);
            return;
        }
    }
}

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 GLvoid* 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 GLvoid* data = 0x%0.8p)",
        target, level, xoffset, yoffset, zoffset, width, height, depth, format, imageSize, data);

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

        const InternalFormat &formatInfo = GetInternalFormatInfo(format);
        if (imageSize < 0 || static_cast<GLuint>(imageSize) != formatInfo.computeBlockSize(GL_UNSIGNED_BYTE, width, height))
        {
            context->recordError(Error(GL_INVALID_VALUE));
            return;
        }

        if (!data)
        {
            context->recordError(Error(GL_INVALID_VALUE));
            return;
        }

        // validateES3TexImageFormat sets the error code if there is an error
        if (!ValidateES3TexImageParameters(context, target, level, GL_NONE, true, true,
                                           0, 0, 0, width, height, depth, 0, GL_NONE, GL_NONE, data))
        {
            return;
        }

        // Zero sized uploads are valid but no-ops
        if (width == 0 || height == 0)
        {
            return;
        }

        Box area(xoffset, yoffset, zoffset, width, height, depth);
        Texture *texture = context->getTargetTexture(target);
        Error error = texture->setCompressedSubImage(target, level, area, format, context->getState().getUnpackState(),
                                                     reinterpret_cast<const uint8_t *>(data));
        if (error.isError())
        {
            context->recordError(error);
            return;
        }
    }
}

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->getClientVersion() < 3)
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return;
        }

        if (n < 0)
        {
            context->recordError(Error(GL_INVALID_VALUE));
            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->getClientVersion() < 3)
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return;
        }

        if (n < 0)
        {
            context->recordError(Error(GL_INVALID_VALUE));
            return;
        }

        for (GLsizei 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->getClientVersion() < 3)
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return GL_FALSE;
        }

        return (context->getQuery(id, false, GL_NONE) != NULL) ? 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 (context->getClientVersion() < 3)
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return;
        }

        if (!ValidateBeginQuery(context, target, id))
        {
            return;
        }

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

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

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

        if (!ValidateEndQuery(context, target))
        {
            return;
        }

        Error error = context->endQuery(target);
        if (error.isError())
        {
            context->recordError(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 (context->getClientVersion() < 3)
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return;
        }

        if (!ValidQueryType(context, target))
        {
            context->recordError(Error(GL_INVALID_ENUM));
            return;
        }

        switch (pname)
        {
          case GL_CURRENT_QUERY:
            params[0] = static_cast<GLint>(context->getState().getActiveQueryId(target));
            break;

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

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 (context->getClientVersion() < 3)
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return;
        }

        Query *queryObject = context->getQuery(id, false, GL_NONE);

        if (!queryObject)
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return;
        }

        if (context->getState().getActiveQueryId(queryObject->getType()) == id)
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return;
        }

        switch(pname)
        {
          case GL_QUERY_RESULT_EXT:
            {
                Error error = queryObject->getResult(params);
                if (error.isError())
                {
                    context->recordError(error);
                    return;
                }
            }
            break;

          case GL_QUERY_RESULT_AVAILABLE_EXT:
            {
                Error error = queryObject->isResultAvailable(params);
                if (error.isError())
                {
                    context->recordError(error);
                    return;
                }
            }
            break;

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

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

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

        return UnmapBufferOES(target);
    }

    return GL_FALSE;
}

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

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

        GetBufferPointervOES(target, pname, params);
    }
}

void GL_APIENTRY DrawBuffers(GLsizei n, const GLenum* bufs)
{
    Context *context = GetValidGlobalContext();
    if (context)
    {
        if (context->getClientVersion() < 3)
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return;
        }

        DrawBuffersEXT(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->getState().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->getState().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->getState().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->getState().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->getState().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->getState().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->getClientVersion() < 3)
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return;
        }

        if (!ValidateBlitFramebufferParameters(context, srcX0, srcY0, srcX1, srcY1,
                                               dstX0, dstY0, dstX1, dstY1, mask, filter,
                                               false))
        {
            return;
        }

        Framebuffer *readFramebuffer = context->getState().getReadFramebuffer();
        ASSERT(readFramebuffer);

        Framebuffer *drawFramebuffer = context->getState().getDrawFramebuffer();
        ASSERT(drawFramebuffer);

        Rectangle srcArea(srcX0, srcY0, srcX1 - srcX0, srcY1 - srcY0);
        Rectangle dstArea(dstX0, dstY0, dstX1 - dstX0, dstY1 - dstY0);

        Error error = drawFramebuffer->blit(context->getState(), srcArea, dstArea, mask, filter, readFramebuffer);
        if (error.isError())
        {
            context->recordError(error);
            return;
        }
    }
}

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->getClientVersion() < 3)
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return;
        }

        if (!ValidateES3RenderbufferStorageParameters(context, target, samples, internalformat, width, height))
        {
            return;
        }

        Renderbuffer *renderbuffer = context->getState().getCurrentRenderbuffer();
        renderbuffer->setStorage(width, height, internalformat, samples);
    }
}

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 (!ValidateFramebufferTextureLayer(context, target, attachment, texture,
                                             level, layer))
        {
            return;
        }

        Framebuffer *framebuffer = context->getState().getTargetFramebuffer(target);
        ASSERT(framebuffer);

        if (texture != 0)
        {
            Texture *textureObject = context->getTexture(texture);

            ImageIndex index = ImageIndex::MakeInvalid();

            if (textureObject->getTarget() == GL_TEXTURE_3D)
            {
                index = ImageIndex::Make3D(level, layer);
            }
            else
            {
                ASSERT(textureObject->getTarget() == GL_TEXTURE_2D_ARRAY);
                index = ImageIndex::Make2DArray(level, layer);
            }

            framebuffer->setTextureAttachment(attachment, textureObject, index);
        }
        else
        {
            framebuffer->setNULLAttachment(attachment);
        }
    }
}

GLvoid *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->getClientVersion() < 3)
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return NULL;
        }

        return MapBufferRangeEXT(target, offset, length, access);
    }

    return NULL;
}

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->getClientVersion() < 3)
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return;
        }

        FlushMappedBufferRangeEXT(target, offset, length);
    }
}

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

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

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

        if (!vao)
        {
            // The default VAO should always exist
            ASSERT(array != 0);
            context->recordError(Error(GL_INVALID_OPERATION));
            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->getClientVersion() < 3)
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return;
        }

        if (n < 0)
        {
            context->recordError(Error(GL_INVALID_VALUE));
            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->getClientVersion() < 3)
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return;
        }

        if (n < 0)
        {
            context->recordError(Error(GL_INVALID_VALUE));
            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 (context->getClientVersion() < 3)
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return GL_FALSE;
        }

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

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

        return (vao != NULL ? 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->getClientVersion() < 3)
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return;
        }

        const Caps &caps = context->getCaps();
        switch (target)
        {
          case GL_TRANSFORM_FEEDBACK_BUFFER_START:
          case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE:
          case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
            if (index >= caps.maxTransformFeedbackSeparateAttributes)
            {
                context->recordError(Error(GL_INVALID_VALUE));
                return;
            }
            break;

          case GL_UNIFORM_BUFFER_START:
          case GL_UNIFORM_BUFFER_SIZE:
          case GL_UNIFORM_BUFFER_BINDING:
            if (index >= caps.maxCombinedUniformBlocks)
            {
                context->recordError(Error(GL_INVALID_VALUE));
                return;
            }
            break;

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

        if (!(context->getIndexedIntegerv(target, index, data)))
        {
            GLenum nativeType;
            unsigned int numParams = 0;
            if (!context->getIndexedQueryParameterInfo(target, &nativeType, &numParams))
            {
                context->recordError(Error(GL_INVALID_ENUM));
                return;
            }

            if (numParams == 0)
            {
                return; // it is known that pname is valid, but there are no parameters to return
            }

            if (nativeType == GL_INT_64_ANGLEX)
            {
                GLint64 minIntValue = static_cast<GLint64>(std::numeric_limits<int>::min());
                GLint64 maxIntValue = static_cast<GLint64>(std::numeric_limits<int>::max());
                GLint64 *int64Params = new GLint64[numParams];

                context->getIndexedInteger64v(target, index, int64Params);

                for (unsigned int i = 0; i < numParams; ++i)
                {
                    GLint64 clampedValue = std::max(std::min(int64Params[i], maxIntValue), minIntValue);
                    data[i] = static_cast<GLint>(clampedValue);
                }

                delete [] int64Params;
            }
            else
            {
                UNREACHABLE();
            }
        }
    }
}

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

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

        switch (primitiveMode)
        {
          case GL_TRIANGLES:
          case GL_LINES:
          case GL_POINTS:
            break;

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

        TransformFeedback *transformFeedback = context->getState().getCurrentTransformFeedback();
        ASSERT(transformFeedback != NULL);

        if (transformFeedback->isStarted())
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return;
        }

        if (transformFeedback->isPaused())
        {
            transformFeedback->resume();
        }
        else
        {
            transformFeedback->start(primitiveMode);
        }
    }
}

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

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

        TransformFeedback *transformFeedback = context->getState().getCurrentTransformFeedback();
        ASSERT(transformFeedback != NULL);

        if (!transformFeedback->isStarted())
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return;
        }

        transformFeedback->stop();
    }
}

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->getClientVersion() < 3)
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return;
        }

        const Caps &caps = context->getCaps();
        switch (target)
        {
          case GL_TRANSFORM_FEEDBACK_BUFFER:
            if (index >= caps.maxTransformFeedbackSeparateAttributes)
            {
                context->recordError(Error(GL_INVALID_VALUE));
                return;
            }
            break;

          case GL_UNIFORM_BUFFER:
            if (index >= caps.maxUniformBufferBindings)
            {
                context->recordError(Error(GL_INVALID_VALUE));
                return;
            }
            break;

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

        if (buffer != 0 && size <= 0)
        {
            context->recordError(Error(GL_INVALID_VALUE));
            return;
        }

        switch (target)
        {
          case GL_TRANSFORM_FEEDBACK_BUFFER:
            {
                // size and offset must be a multiple of 4
                if (buffer != 0 && ((offset % 4) != 0 || (size % 4) != 0))
                {
                    context->recordError(Error(GL_INVALID_VALUE));
                    return;
                }

                // Cannot bind a transform feedback buffer if the current transform feedback is active (3.0.4 pg 91 section 2.15.2)
                TransformFeedback *curTransformFeedback = context->getState().getCurrentTransformFeedback();
                if (curTransformFeedback && curTransformFeedback->isStarted())
                {
                    context->recordError(Error(GL_INVALID_OPERATION));
                    return;
                }

                context->bindIndexedTransformFeedbackBuffer(buffer, index, offset, size);
                context->bindGenericTransformFeedbackBuffer(buffer);
                break;
            }

          case GL_UNIFORM_BUFFER:

            // it is an error to bind an offset not a multiple of the alignment
            if (buffer != 0 && (offset % caps.uniformBufferOffsetAlignment) != 0)
            {
                context->recordError(Error(GL_INVALID_VALUE));
                return;
            }

            context->bindIndexedUniformBuffer(buffer, index, offset, size);
            context->bindGenericUniformBuffer(buffer);
            break;

          default:
            UNREACHABLE();
        }
    }
}

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->getClientVersion() < 3)
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return;
        }

        const Caps &caps = context->getCaps();
        switch (target)
        {
          case GL_TRANSFORM_FEEDBACK_BUFFER:
            if (index >= caps.maxTransformFeedbackSeparateAttributes)
            {
                context->recordError(Error(GL_INVALID_VALUE));
                return;
            }
            break;

          case GL_UNIFORM_BUFFER:
            if (index >= caps.maxUniformBufferBindings)
            {
                context->recordError(Error(GL_INVALID_VALUE));
                return;
            }
            break;

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

        switch (target)
        {
          case GL_TRANSFORM_FEEDBACK_BUFFER:
            {
                // Cannot bind a transform feedback buffer if the current transform feedback is active (3.0.4 pg 91 section 2.15.2)
                TransformFeedback *curTransformFeedback = context->getState().getCurrentTransformFeedback();
                if (curTransformFeedback && curTransformFeedback->isStarted())
                {
                    context->recordError(Error(GL_INVALID_OPERATION));
                    return;
                }

                context->bindIndexedTransformFeedbackBuffer(buffer, index, 0, 0);
                context->bindGenericTransformFeedbackBuffer(buffer);
                break;
            }
          case GL_UNIFORM_BUFFER:
            context->bindIndexedUniformBuffer(buffer, index, 0, 0);
            context->bindGenericUniformBuffer(buffer);
            break;

          default:
            UNREACHABLE();
        }
    }
}

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->getClientVersion() < 3)
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return;
        }

        if (count < 0)
        {
            context->recordError(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->recordError(Error(GL_INVALID_VALUE));
                return;
            }
            break;
          default:
            context->recordError(Error(GL_INVALID_ENUM));
            return;
        }

        if (!ValidProgram(context, program))
        {
            return;
        }

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

        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->getClientVersion() < 3)
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return;
        }

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

        if (!ValidProgram(context, program))
        {
            return;
        }

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

        if (index >= static_cast<GLuint>(programObject->getTransformFeedbackVaryingCount()))
        {
            context->recordError(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 GLvoid* pointer)
{
    EVENT("(GLuint index = %u, GLint size = %d, GLenum type = 0x%X, GLsizei stride = %d, const GLvoid* pointer = 0x%0.8p)",
          index, size, type, stride, pointer);

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

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

        if (size < 1 || size > 4)
        {
            context->recordError(Error(GL_INVALID_VALUE));
            return;
        }

        switch (type)
        {
          case GL_BYTE:
          case GL_UNSIGNED_BYTE:
          case GL_SHORT:
          case GL_UNSIGNED_SHORT:
          case GL_INT:
          case GL_UNSIGNED_INT:
          case GL_INT_2_10_10_10_REV:
          case GL_UNSIGNED_INT_2_10_10_10_REV:
            break;

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

        if (stride < 0)
        {
            context->recordError(Error(GL_INVALID_VALUE));
            return;
        }

        if ((type == GL_INT_2_10_10_10_REV || type == GL_UNSIGNED_INT_2_10_10_10_REV) && size != 4)
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return;
        }

        // [OpenGL ES 3.0.2] Section 2.8 page 24:
        // An INVALID_OPERATION error is generated when a non-zero vertex array object
        // is bound, zero is bound to the ARRAY_BUFFER buffer object binding point,
        // and the pointer argument is not NULL.
        if (context->getState().getVertexArray()->id() != 0 && context->getState().getArrayBufferId() == 0 && pointer != NULL)
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return;
        }

        context->getState().setVertexAttribState(index, context->getState().getTargetBuffer(GL_ARRAY_BUFFER), size, type, false, true,
                                                 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->getClientVersion() < 3)
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return;
        }

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

        const VertexAttribute &attribState = context->getState().getVertexAttribState(index);

        if (!ValidateGetVertexAttribParameters(context, pname))
        {
            return;
        }

        if (pname == GL_CURRENT_VERTEX_ATTRIB)
        {
            const VertexAttribCurrentValueData &currentValueData = context->getState().getVertexAttribCurrentValue(index);
            for (int i = 0; i < 4; ++i)
            {
                params[i] = currentValueData.IntValues[i];
            }
        }
        else
        {
            *params = QuerySingleVertexAttributeParameter<GLint>(attribState, pname);
        }
    }
}

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->getClientVersion() < 3)
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return;
        }

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

        const VertexAttribute &attribState = context->getState().getVertexAttribState(index);

        if (!ValidateGetVertexAttribParameters(context, pname))
        {
            return;
        }

        if (pname == GL_CURRENT_VERTEX_ATTRIB)
        {
            const VertexAttribCurrentValueData &currentValueData = context->getState().getVertexAttribCurrentValue(index);
            for (int i = 0; i < 4; ++i)
            {
                params[i] = currentValueData.UnsignedIntValues[i];
            }
        }
        else
        {
            *params = QuerySingleVertexAttributeParameter<GLuint>(attribState, pname);
        }
    }
}

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->getClientVersion() < 3)
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return;
        }

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

        GLint vals[4] = { x, y, z, w };
        context->getState().setVertexAttribi(index, vals);
    }
}

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->getClientVersion() < 3)
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return;
        }

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

        GLuint vals[4] = { x, y, z, w };
        context->getState().setVertexAttribu(index, vals);
    }
}

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->getClientVersion() < 3)
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return;
        }

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

        context->getState().setVertexAttribi(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->getClientVersion() < 3)
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return;
        }

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

        context->getState().setVertexAttribu(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->getClientVersion() < 3)
        {
            context->recordError(Error(GL_INVALID_OPERATION));
            return -1;
        }

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

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

        if (!programObject || !programObject->isLinked())
        {
            context->recordError(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->getState().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->getState().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))
        {…