chromium/gpu/command_buffer/service/multi_draw_manager.cc

// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/40285824): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif

#include "gpu/command_buffer/service/multi_draw_manager.h"

#include <algorithm>

#include "base/check.h"
#include "base/notreached.h"
#include "base/numerics/checked_math.h"

namespace gpu {
namespace gles2 {

MultiDrawManager::ResultData::ResultData() = default;
MultiDrawManager::ResultData::~ResultData() = default;

MultiDrawManager::ResultData::ResultData(ResultData&& rhs)
    : … { … }

MultiDrawManager::ResultData& MultiDrawManager::ResultData::operator=(
    ResultData&& rhs) { … }

MultiDrawManager::MultiDrawManager(IndexStorageType index_type)
    : … { … }

bool MultiDrawManager::Begin(GLsizei drawcount) { … }

bool MultiDrawManager::End(ResultData* result) { … }

bool MultiDrawManager::MultiDrawArrays(GLenum mode,
                                       const GLint* firsts,
                                       const GLsizei* counts,
                                       GLsizei drawcount) { … }

bool MultiDrawManager::MultiDrawArraysInstanced(GLenum mode,
                                                const GLint* firsts,
                                                const GLsizei* counts,
                                                const GLsizei* instance_counts,
                                                GLsizei drawcount) { … }

bool MultiDrawManager::MultiDrawArraysInstancedBaseInstance(
    GLenum mode,
    const GLint* firsts,
    const GLsizei* counts,
    const GLsizei* instance_counts,
    const GLuint* baseinstances,
    GLsizei drawcount) { … }

bool MultiDrawManager::MultiDrawElements(GLenum mode,
                                         const GLsizei* counts,
                                         GLenum type,
                                         const GLsizei* offsets,
                                         GLsizei drawcount) { … }

bool MultiDrawManager::MultiDrawElementsInstanced(
    GLenum mode,
    const GLsizei* counts,
    GLenum type,
    const GLsizei* offsets,
    const GLsizei* instance_counts,
    GLsizei drawcount) { … }

bool MultiDrawManager::MultiDrawElementsInstancedBaseVertexBaseInstance(
    GLenum mode,
    const GLsizei* counts,
    GLenum type,
    const GLsizei* offsets,
    const GLsizei* instance_counts,
    const GLint* basevertices,
    const GLuint* baseinstances,
    GLsizei drawcount) { … }

void MultiDrawManager::ResizeArrays() { … }

bool MultiDrawManager::ValidateDrawcount(GLsizei drawcount) const { … }

bool MultiDrawManager::EnsureDrawArraysFunction(DrawFunction draw_function,
                                                GLenum mode,
                                                GLsizei drawcount) { … }

bool MultiDrawManager::EnsureDrawElementsFunction(DrawFunction draw_function,
                                                  GLenum mode,
                                                  GLenum type,
                                                  GLsizei drawcount) { … }

void MultiDrawManager::CopyArraysHelper(GLsizei drawcount,
                                        const GLint* firsts,
                                        const GLsizei* counts,
                                        const GLsizei* offsets,
                                        const GLsizei* instance_counts,
                                        const GLint* basevertices,
                                        const GLuint* baseinstances) { … }

}  // namespace gles2
}  // namespace gpu