chromium/third_party/blink/renderer/modules/webgl/webgl2_rendering_context.cc

// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "third_party/blink/renderer/modules/webgl/webgl2_rendering_context.h"

#include <memory>

#include "gpu/command_buffer/client/gles2_interface.h"
#include "third_party/blink/public/platform/platform.h"
#include "third_party/blink/public/platform/web_graphics_context_3d_provider.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_union_canvasrenderingcontext2d_gpucanvascontext_imagebitmaprenderingcontext_webgl2renderingcontext_webglrenderingcontext.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_union_gpucanvascontext_imagebitmaprenderingcontext_offscreencanvasrenderingcontext2d_webgl2renderingcontext_webglrenderingcontext.h"
#include "third_party/blink/renderer/core/frame/local_frame.h"
#include "third_party/blink/renderer/core/frame/local_frame_client.h"
#include "third_party/blink/renderer/core/frame/settings.h"
#include "third_party/blink/renderer/core/loader/frame_loader.h"
#include "third_party/blink/renderer/modules/webgl/ext_clip_control.h"
#include "third_party/blink/renderer/modules/webgl/ext_color_buffer_float.h"
#include "third_party/blink/renderer/modules/webgl/ext_color_buffer_half_float.h"
#include "third_party/blink/renderer/modules/webgl/ext_conservative_depth.h"
#include "third_party/blink/renderer/modules/webgl/ext_depth_clamp.h"
#include "third_party/blink/renderer/modules/webgl/ext_disjoint_timer_query_webgl2.h"
#include "third_party/blink/renderer/modules/webgl/ext_float_blend.h"
#include "third_party/blink/renderer/modules/webgl/ext_polygon_offset_clamp.h"
#include "third_party/blink/renderer/modules/webgl/ext_render_snorm.h"
#include "third_party/blink/renderer/modules/webgl/ext_texture_compression_bptc.h"
#include "third_party/blink/renderer/modules/webgl/ext_texture_compression_rgtc.h"
#include "third_party/blink/renderer/modules/webgl/ext_texture_filter_anisotropic.h"
#include "third_party/blink/renderer/modules/webgl/ext_texture_mirror_clamp_to_edge.h"
#include "third_party/blink/renderer/modules/webgl/ext_texture_norm_16.h"
#include "third_party/blink/renderer/modules/webgl/khr_parallel_shader_compile.h"
#include "third_party/blink/renderer/modules/webgl/nv_shader_noperspective_interpolation.h"
#include "third_party/blink/renderer/modules/webgl/oes_draw_buffers_indexed.h"
#include "third_party/blink/renderer/modules/webgl/oes_sample_variables.h"
#include "third_party/blink/renderer/modules/webgl/oes_shader_multisample_interpolation.h"
#include "third_party/blink/renderer/modules/webgl/oes_texture_float_linear.h"
#include "third_party/blink/renderer/modules/webgl/ovr_multiview_2.h"
#include "third_party/blink/renderer/modules/webgl/webgl_blend_func_extended.h"
#include "third_party/blink/renderer/modules/webgl/webgl_clip_cull_distance.h"
#include "third_party/blink/renderer/modules/webgl/webgl_compressed_texture_astc.h"
#include "third_party/blink/renderer/modules/webgl/webgl_compressed_texture_etc.h"
#include "third_party/blink/renderer/modules/webgl/webgl_compressed_texture_etc1.h"
#include "third_party/blink/renderer/modules/webgl/webgl_compressed_texture_pvrtc.h"
#include "third_party/blink/renderer/modules/webgl/webgl_compressed_texture_s3tc.h"
#include "third_party/blink/renderer/modules/webgl/webgl_compressed_texture_s3tc_srgb.h"
#include "third_party/blink/renderer/modules/webgl/webgl_context_attribute_helpers.h"
#include "third_party/blink/renderer/modules/webgl/webgl_context_event.h"
#include "third_party/blink/renderer/modules/webgl/webgl_debug_renderer_info.h"
#include "third_party/blink/renderer/modules/webgl/webgl_debug_shaders.h"
#include "third_party/blink/renderer/modules/webgl/webgl_draw_instanced_base_vertex_base_instance.h"
#include "third_party/blink/renderer/modules/webgl/webgl_lose_context.h"
#include "third_party/blink/renderer/modules/webgl/webgl_multi_draw.h"
#include "third_party/blink/renderer/modules/webgl/webgl_multi_draw_instanced_base_vertex_base_instance.h"
#include "third_party/blink/renderer/modules/webgl/webgl_polygon_mode.h"
#include "third_party/blink/renderer/modules/webgl/webgl_provoking_vertex.h"
#include "third_party/blink/renderer/modules/webgl/webgl_render_shared_exponent.h"
#include "third_party/blink/renderer/modules/webgl/webgl_shader_pixel_local_storage.h"
#include "third_party/blink/renderer/modules/webgl/webgl_stencil_texturing.h"
#include "third_party/blink/renderer/platform/graphics/gpu/drawing_buffer.h"

namespace blink {

class ExceptionState;

// An helper function for the two create() methods. The return value is an
// indicate of whether the create() should return nullptr or not.
static bool ShouldCreateContext(WebGraphicsContext3DProvider* context_provider,
                                CanvasRenderingContextHost* host) { … }

CanvasRenderingContext* WebGL2RenderingContext::Factory::Create(
    CanvasRenderingContextHost* host,
    const CanvasContextCreationAttributesCore& attrs) { … }

void WebGL2RenderingContext::Factory::OnError(HTMLCanvasElement* canvas,
                                              const String& error) { … }

WebGL2RenderingContext::WebGL2RenderingContext(
    CanvasRenderingContextHost* host,
    std::unique_ptr<WebGraphicsContext3DProvider> context_provider,
    const Platform::GraphicsInfo& graphics_info,
    const CanvasContextCreationAttributesCore& requested_attributes)
    : … { … }

V8RenderingContext* WebGL2RenderingContext::AsV8RenderingContext() { … }

V8OffscreenRenderingContext*
WebGL2RenderingContext::AsV8OffscreenRenderingContext() { … }

ImageBitmap* WebGL2RenderingContext::TransferToImageBitmap(
    ScriptState* script_state,
    ExceptionState& exception_state) { … }

void WebGL2RenderingContext::RegisterContextExtensions() { … }

}  // namespace blink