gl_helper.h revision 868fa2fe829687343ffae624259930155e16dbd8
15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef CONTENT_COMMON_GPU_CLIENT_GL_HELPER_H_ 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define CONTENT_COMMON_GPU_CLIENT_GL_HELPER_H_ 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/atomicops.h" 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/basictypes.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/callback.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/memory/scoped_ptr.h" 1290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)#include "content/common/content_export.h" 13c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#include "content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.h" 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace gfx { 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class Rect; 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class Size; 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 20868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)namespace media { 21868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)class VideoFrame; 22868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)}; 23868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)class SkRegion; 252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace content { 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)class GLHelperScaling; 2990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 3090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)class ScopedWebGLId { 3190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) public: 3290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) typedef void (WebKit::WebGraphicsContext3D::*DeleteFunc)(WebGLId); 3390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ScopedWebGLId(WebKit::WebGraphicsContext3D* context, 3490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebGLId id, 3590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) DeleteFunc delete_func) 3690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) : context_(context), 3790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) id_(id), 3890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) delete_func_(delete_func) { 3990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } 4090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 4190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) operator WebGLId() const { 4290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) return id_; 4390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } 4490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 4590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebGLId id() const { return id_; } 4690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 4790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebGLId Detach() { 4890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebGLId id = id_; 4990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) id_ = 0; 5090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) return id; 5190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } 5290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 5390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ~ScopedWebGLId() { 5490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) if (id_ != 0) { 5590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) (context_->*delete_func_)(id_); 5690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } 5790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } 5890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 5990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) private: 6090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebKit::WebGraphicsContext3D* context_; 6190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebGLId id_; 6290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) DeleteFunc delete_func_; 6390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 6490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(ScopedWebGLId); 6590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)}; 6690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 6790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)class ScopedBuffer : public ScopedWebGLId { 6890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) public: 6990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ScopedBuffer(WebKit::WebGraphicsContext3D* context, 7090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebGLId id) 7190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) : ScopedWebGLId(context, 7290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) id, 7390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) &WebKit::WebGraphicsContext3D::deleteBuffer) {} 7490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)}; 7590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 7690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)class ScopedFramebuffer : public ScopedWebGLId { 7790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) public: 7890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ScopedFramebuffer(WebKit::WebGraphicsContext3D* context, 7990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebGLId id) 8090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) : ScopedWebGLId(context, 8190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) id, 8290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) &WebKit::WebGraphicsContext3D::deleteFramebuffer) {} 8390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)}; 8490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 8590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)class ScopedProgram : public ScopedWebGLId { 8690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) public: 8790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ScopedProgram(WebKit::WebGraphicsContext3D* context, 8890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebGLId id) 8990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) : ScopedWebGLId(context, 9090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) id, 9190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) &WebKit::WebGraphicsContext3D::deleteProgram) {} 9290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)}; 9390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 9490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)class ScopedShader : public ScopedWebGLId { 9590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) public: 9690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ScopedShader(WebKit::WebGraphicsContext3D* context, 9790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebGLId id) 9890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) : ScopedWebGLId(context, 9990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) id, 10090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) &WebKit::WebGraphicsContext3D::deleteShader) {} 10190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)}; 10290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 10390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)class ScopedTexture : public ScopedWebGLId { 10490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) public: 10590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ScopedTexture(WebKit::WebGraphicsContext3D* context, 10690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebGLId id) 10790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) : ScopedWebGLId(context, 10890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) id, 10990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) &WebKit::WebGraphicsContext3D::deleteTexture) {} 11090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)}; 11190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 11290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)template <WebKit::WGC3Denum target> 11390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)class ScopedBinder { 11490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) public: 11590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) typedef void (WebKit::WebGraphicsContext3D::*BindFunc)(WebKit::WGC3Denum, 11690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebGLId); 11790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ScopedBinder(WebKit::WebGraphicsContext3D* context, 11890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebGLId id, 11990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) BindFunc bind_func) 12090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) : context_(context), 12190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) bind_func_(bind_func) { 12290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) (context_->*bind_func_)(target, id); 12390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } 12490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 12590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) virtual ~ScopedBinder() { 12690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) (context_->*bind_func_)(target, 0); 12790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } 12890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 12990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) private: 13090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebKit::WebGraphicsContext3D* context_; 13190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) BindFunc bind_func_; 13290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 13390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(ScopedBinder); 13490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)}; 13590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 13690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)template <WebKit::WGC3Denum target> 13790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)class ScopedBufferBinder : ScopedBinder<target> { 13890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) public: 13990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ScopedBufferBinder(WebKit::WebGraphicsContext3D* context, 14090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebGLId id) 14190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) : ScopedBinder<target>( 14290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) context, 14390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) id, 14490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) &WebKit::WebGraphicsContext3D::bindBuffer) {} 14590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)}; 14690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 14790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)template <WebKit::WGC3Denum target> 14890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)class ScopedFramebufferBinder : ScopedBinder<target> { 14990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) public: 15090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ScopedFramebufferBinder(WebKit::WebGraphicsContext3D* context, 15190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebGLId id) 15290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) : ScopedBinder<target>( 15390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) context, 15490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) id, 15590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) &WebKit::WebGraphicsContext3D::bindFramebuffer) {} 15690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)}; 15790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 15890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)template <WebKit::WGC3Denum target> 15990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)class ScopedTextureBinder : ScopedBinder<target> { 16090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) public: 16190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ScopedTextureBinder(WebKit::WebGraphicsContext3D* context, 16290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebGLId id) 16390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) : ScopedBinder<target>( 16490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) context, 16590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) id, 16690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) &WebKit::WebGraphicsContext3D::bindTexture) {} 16790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)}; 16890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 16990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)class ScopedFlush { 17090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) public: 17190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) explicit ScopedFlush(WebKit::WebGraphicsContext3D* context) 17290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) : context_(context) { 17390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } 17490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 17590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ~ScopedFlush() { 17690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) context_->flush(); 17790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } 17890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 17990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) private: 18090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebKit::WebGraphicsContext3D* context_; 18190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 18290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(ScopedFlush); 18390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)}; 18490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 185868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 186868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)class ReadbackYUVInterface; 187868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 1885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Provides higher level operations on top of the WebKit::WebGraphicsContext3D 1895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// interfaces. 19090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)class CONTENT_EXPORT GLHelper { 1915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 19290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) explicit GLHelper(WebKit::WebGraphicsContext3D* context); 19390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ~GLHelper(); 19490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 19590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) enum ScalerQuality { 19690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Bilinear single pass, fastest possible. 19790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) SCALER_QUALITY_FAST = 1, 19890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 19990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Bilinear upscale + N * 50% bilinear downscales. 20090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // This is still fast enough for most purposes and 20190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Image quality is nearly as good as the BEST option. 20290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) SCALER_QUALITY_GOOD = 2, 20390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 20490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Bicubic upscale + N * 50% bicubic downscales. 20590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Produces very good quality scaled images, but it's 20690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // 2-8x slower than the "GOOD" quality, so it's not always 20790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // worth it. 20890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) SCALER_QUALITY_BEST = 3, 20990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) }; 2105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Copies the block of pixels specified with |src_subrect| from |src_texture|, 2135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // scales it to |dst_size|, and writes it into |out|. 2145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // |src_size| is the size of |src_texture|. The result is of format GL_BGRA 2155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // and is potentially flipped vertically to make it a correct image 2165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // representation. |callback| is invoked with the copy result when the copy 2175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // operation has completed. 21890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Note that the src_texture will have the min/mag filter set to GL_LINEAR 21990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // and wrap_s/t set to CLAMP_TO_EDGE in this call. 2205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void CropScaleReadbackAndCleanTexture( 2215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) WebKit::WebGLId src_texture, 2225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const gfx::Size& src_size, 2235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const gfx::Rect& src_subrect, 2245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const gfx::Size& dst_size, 2255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) unsigned char* out, 2265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const base::Callback<void(bool)>& callback); 2275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Copies the texture data out of |texture| into |out|. |size| is the 2295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // size of the texture. No post processing is applied to the pixels. The 2305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // texture is assumed to have a format of GL_RGBA with a pixel type of 2315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // GL_UNSIGNED_BYTE. This is a blocking call that calls glReadPixels on this 2325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // current context. 2335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void ReadbackTextureSync(WebKit::WebGLId texture, 2342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const gfx::Rect& src_rect, 2355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) unsigned char* out); 2365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Creates a copy of the specified texture. |size| is the size of the texture. 23890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Note that the src_texture will have the min/mag filter set to GL_LINEAR 23990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // and wrap_s/t set to CLAMP_TO_EDGE in this call. 2405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) WebKit::WebGLId CopyTexture(WebKit::WebGLId texture, 2415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const gfx::Size& size); 2425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Creates a scaled copy of the specified texture. |src_size| is the size of 2445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // the texture and |dst_size| is the size of the resulting copy. 24590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Note that the src_texture will have the min/mag filter set to GL_LINEAR 24690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // and wrap_s/t set to CLAMP_TO_EDGE in this call. 24790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebKit::WebGLId CopyAndScaleTexture( 24890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebKit::WebGLId texture, 24990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) const gfx::Size& src_size, 25090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) const gfx::Size& dst_size, 25190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) bool vertically_flip_texture, 25290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ScalerQuality quality); 2535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Returns the shader compiled from the source. 2555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) WebKit::WebGLId CompileShaderFromSource(const WebKit::WGC3Dchar* source, 2565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) WebKit::WGC3Denum type); 2575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2582a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Copies all pixels from |previous_texture| into |texture| that are 2592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // inside the region covered by |old_damage| but not part of |new_damage|. 2602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) void CopySubBufferDamage(WebKit::WebGLId texture, 2612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) WebKit::WebGLId previous_texture, 2622a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const SkRegion& new_damage, 2632a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const SkRegion& old_damage); 2642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 265868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // Simply creates a texture. 266868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) WebKit::WebGLId CreateTexture(); 267868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 268868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // Resizes the texture's size to |size|. 269868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) void ResizeTexture(WebKit::WebGLId texture, const gfx::Size& size); 270868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 271868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // Copies the framebuffer data given in |rect| to |texture|. 272868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) void CopyTextureSubImage(WebKit::WebGLId texture, const gfx::Rect& rect); 273868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 274868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // Copies the all framebuffer data to |texture|. |size| specifies the 275868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // size of the framebuffer. 276868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) void CopyTextureFullImage(WebKit::WebGLId texture, const gfx::Size& size); 277868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 27890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // A scaler will cache all intermediate textures and programs 27990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // needed to scale from a specified size to a destination size. 28090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // If the source or destination sizes changes, you must create 28190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // a new scaler. 28290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) class CONTENT_EXPORT ScalerInterface { 28390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) public: 28490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ScalerInterface() {} 28590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) virtual ~ScalerInterface() {} 28690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 28790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Note that the src_texture will have the min/mag filter set to GL_LINEAR 28890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // and wrap_s/t set to CLAMP_TO_EDGE in this call. 28990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) virtual void Scale(WebKit::WebGLId source_texture, 29090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebKit::WebGLId dest_texture) = 0; 29190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) virtual const gfx::Size& SrcSize() = 0; 29290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) virtual const gfx::Rect& SrcSubrect() = 0; 29390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) virtual const gfx::Size& DstSize() = 0; 29490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) }; 29590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 29690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Note that the quality may be adjusted down if texture 29790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // allocations fail or hardware doesn't support the requtested 29890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // quality. Note that ScalerQuality enum is arranged in 29990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // numerical order for simplicity. 30090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ScalerInterface* CreateScaler(ScalerQuality quality, 30190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) const gfx::Size& src_size, 30290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) const gfx::Rect& src_subrect, 30390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) const gfx::Size& dst_size, 30490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) bool vertically_flip_texture, 30590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) bool swizzle); 30690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 307868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // Create a readback pipeline that will scale a subsection of the source 308868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // texture, then convert it to YUV422 planar form and then read back that. 309868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // This reduces the amount of memory read from GPU to CPU memory by a factor 310868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // 2.6, which can be quite handy since readbacks have very limited speed 311868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // on some platforms. All values in |dst_size| and |dst_subrect| must be 312868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // a multiple of two. If |use_mrt| is true, the pipeline will try to optimize 313868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // the YUV conversion using the multi-render-target extension. |use_mrt| 314868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // should only be set to false for testing. 315868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) ReadbackYUVInterface* CreateReadbackPipelineYUV( 316868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) ScalerQuality quality, 317868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) const gfx::Size& src_size, 318868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) const gfx::Rect& src_subrect, 319868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) const gfx::Size& dst_size, 320868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) const gfx::Rect& dst_subrect, 321868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) bool flip_vertically, 322868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) bool use_mrt); 323868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 324868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // Returns the maximum number of draw buffers available, 325868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // 0 if GL_EXT_draw_buffers is not available. 326868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) WebKit::WGC3Dint MaxDrawBuffers(); 327868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 32890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) protected: 3295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) class CopyTextureToImpl; 3305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Creates |copy_texture_to_impl_| if NULL. 3325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void InitCopyTextToImpl(); 33390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Creates |scaler_impl_| if NULL. 33490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) void InitScalerImpl(); 3355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 33690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebKit::WebGraphicsContext3D* context_; 3375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) scoped_ptr<CopyTextureToImpl> copy_texture_to_impl_; 33890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) scoped_ptr<GLHelperScaling> scaler_impl_; 3395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(GLHelper); 3415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 3425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 343868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)// Similar to a ScalerInterface, a yuv readback pipeline will 344868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)// cache a scaler and all intermediate textures and frame buffers 345868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)// needed to scale, crop, letterbox and read back a texture from 346868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)// the GPU into CPU-accessible RAM. A single readback pipeline 347868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)// can handle multiple outstanding readbacks at the same time, but 348868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)// if the source or destination sizes change, you'll need to create 349868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)// a new readback pipeline. 350868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)class CONTENT_EXPORT ReadbackYUVInterface { 351868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)public: 352868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) ReadbackYUVInterface() {} 353868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) virtual ~ReadbackYUVInterface() {} 354868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 355868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // Note that |target| must use YV12 format. 356868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) virtual void ReadbackYUV( 357868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) WebKit::WebGLId texture, 358868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) media::VideoFrame* target, 359868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) const base::Callback<void(bool)>& callback) = 0; 360868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) virtual GLHelper::ScalerInterface* scaler() = 0; 361868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)}; 362868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 3635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace content 3645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // CONTENT_COMMON_GPU_CLIENT_GL_HELPER_H_ 366