gl_helper.h revision 7dbb3d5cf0c15f500944d211057644d6a2f37371
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) 207dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdochnamespace gpu { 217dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdochstruct Mailbox; 227dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch} 237dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 24868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)namespace media { 25868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)class VideoFrame; 26868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)}; 27868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)class SkRegion; 292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace content { 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)class GLHelperScaling; 3390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 3490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)class ScopedWebGLId { 3590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) public: 3690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) typedef void (WebKit::WebGraphicsContext3D::*DeleteFunc)(WebGLId); 3790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ScopedWebGLId(WebKit::WebGraphicsContext3D* context, 3890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebGLId id, 3990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) DeleteFunc delete_func) 4090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) : context_(context), 4190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) id_(id), 4290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) delete_func_(delete_func) { 4390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } 4490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 4590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) operator WebGLId() const { 4690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) return id_; 4790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } 4890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 4990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebGLId id() const { return id_; } 5090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 5190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebGLId Detach() { 5290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebGLId id = id_; 5390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) id_ = 0; 5490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) return id; 5590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } 5690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 5790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ~ScopedWebGLId() { 5890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) if (id_ != 0) { 5990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) (context_->*delete_func_)(id_); 6090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } 6190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } 6290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 6390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) private: 6490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebKit::WebGraphicsContext3D* context_; 6590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebGLId id_; 6690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) DeleteFunc delete_func_; 6790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 6890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(ScopedWebGLId); 6990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)}; 7090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 7190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)class ScopedBuffer : public ScopedWebGLId { 7290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) public: 7390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ScopedBuffer(WebKit::WebGraphicsContext3D* context, 7490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebGLId id) 7590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) : ScopedWebGLId(context, 7690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) id, 7790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) &WebKit::WebGraphicsContext3D::deleteBuffer) {} 7890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)}; 7990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 8090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)class ScopedFramebuffer : public ScopedWebGLId { 8190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) public: 8290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ScopedFramebuffer(WebKit::WebGraphicsContext3D* context, 8390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebGLId id) 8490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) : ScopedWebGLId(context, 8590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) id, 8690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) &WebKit::WebGraphicsContext3D::deleteFramebuffer) {} 8790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)}; 8890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 8990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)class ScopedProgram : public ScopedWebGLId { 9090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) public: 9190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ScopedProgram(WebKit::WebGraphicsContext3D* context, 9290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebGLId id) 9390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) : ScopedWebGLId(context, 9490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) id, 9590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) &WebKit::WebGraphicsContext3D::deleteProgram) {} 9690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)}; 9790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 9890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)class ScopedShader : public ScopedWebGLId { 9990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) public: 10090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ScopedShader(WebKit::WebGraphicsContext3D* context, 10190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebGLId id) 10290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) : ScopedWebGLId(context, 10390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) id, 10490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) &WebKit::WebGraphicsContext3D::deleteShader) {} 10590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)}; 10690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 10790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)class ScopedTexture : public ScopedWebGLId { 10890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) public: 10990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ScopedTexture(WebKit::WebGraphicsContext3D* context, 11090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebGLId id) 11190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) : ScopedWebGLId(context, 11290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) id, 11390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) &WebKit::WebGraphicsContext3D::deleteTexture) {} 11490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)}; 11590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 11690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)template <WebKit::WGC3Denum target> 11790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)class ScopedBinder { 11890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) public: 11990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) typedef void (WebKit::WebGraphicsContext3D::*BindFunc)(WebKit::WGC3Denum, 12090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebGLId); 12190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ScopedBinder(WebKit::WebGraphicsContext3D* context, 12290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebGLId id, 12390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) BindFunc bind_func) 12490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) : context_(context), 12590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) bind_func_(bind_func) { 12690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) (context_->*bind_func_)(target, id); 12790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } 12890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 12990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) virtual ~ScopedBinder() { 13090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) (context_->*bind_func_)(target, 0); 13190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } 13290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 13390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) private: 13490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebKit::WebGraphicsContext3D* context_; 13590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) BindFunc bind_func_; 13690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 13790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(ScopedBinder); 13890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)}; 13990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 14090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)template <WebKit::WGC3Denum target> 14190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)class ScopedBufferBinder : ScopedBinder<target> { 14290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) public: 14390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ScopedBufferBinder(WebKit::WebGraphicsContext3D* context, 14490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebGLId id) 14590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) : ScopedBinder<target>( 14690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) context, 14790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) id, 14890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) &WebKit::WebGraphicsContext3D::bindBuffer) {} 14990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)}; 15090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 15190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)template <WebKit::WGC3Denum target> 15290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)class ScopedFramebufferBinder : ScopedBinder<target> { 15390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) public: 15490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ScopedFramebufferBinder(WebKit::WebGraphicsContext3D* context, 15590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebGLId id) 15690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) : ScopedBinder<target>( 15790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) context, 15890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) id, 15990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) &WebKit::WebGraphicsContext3D::bindFramebuffer) {} 16090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)}; 16190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 16290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)template <WebKit::WGC3Denum target> 16390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)class ScopedTextureBinder : ScopedBinder<target> { 16490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) public: 16590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ScopedTextureBinder(WebKit::WebGraphicsContext3D* context, 16690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebGLId id) 16790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) : ScopedBinder<target>( 16890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) context, 16990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) id, 17090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) &WebKit::WebGraphicsContext3D::bindTexture) {} 17190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)}; 17290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 17390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)class ScopedFlush { 17490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) public: 17590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) explicit ScopedFlush(WebKit::WebGraphicsContext3D* context) 17690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) : context_(context) { 17790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } 17890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 17990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ~ScopedFlush() { 18090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) context_->flush(); 18190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } 18290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 18390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) private: 18490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebKit::WebGraphicsContext3D* context_; 18590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 18690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(ScopedFlush); 18790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)}; 18890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 189868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 190868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)class ReadbackYUVInterface; 191868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 1925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Provides higher level operations on top of the WebKit::WebGraphicsContext3D 1935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// interfaces. 19490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)class CONTENT_EXPORT GLHelper { 1955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 19690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) explicit GLHelper(WebKit::WebGraphicsContext3D* context); 19790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ~GLHelper(); 19890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 19990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) enum ScalerQuality { 20090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Bilinear single pass, fastest possible. 20190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) SCALER_QUALITY_FAST = 1, 20290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 20390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Bilinear upscale + N * 50% bilinear downscales. 20490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // This is still fast enough for most purposes and 20590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Image quality is nearly as good as the BEST option. 20690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) SCALER_QUALITY_GOOD = 2, 20790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 20890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Bicubic upscale + N * 50% bicubic downscales. 20990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Produces very good quality scaled images, but it's 21090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // 2-8x slower than the "GOOD" quality, so it's not always 21190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // worth it. 21290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) SCALER_QUALITY_BEST = 3, 21390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) }; 2145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Copies the block of pixels specified with |src_subrect| from |src_texture|, 2175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // scales it to |dst_size|, and writes it into |out|. 2185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // |src_size| is the size of |src_texture|. The result is of format GL_BGRA 2195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // and is potentially flipped vertically to make it a correct image 2205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // representation. |callback| is invoked with the copy result when the copy 2215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // operation has completed. 22290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Note that the src_texture will have the min/mag filter set to GL_LINEAR 22390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // and wrap_s/t set to CLAMP_TO_EDGE in this call. 2245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void CropScaleReadbackAndCleanTexture( 2255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) WebKit::WebGLId src_texture, 2265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const gfx::Size& src_size, 2275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const gfx::Rect& src_subrect, 2285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const gfx::Size& dst_size, 2295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) unsigned char* out, 2305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const base::Callback<void(bool)>& callback); 2315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2327dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // Copies the block of pixels specified with |src_subrect| from |src_mailbox|, 2337dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // scales it to |dst_size|, and writes it into |out|. 2347dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // |src_size| is the size of |src_mailbox|. The result is of format GL_BGRA 2357dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // and is potentially flipped vertically to make it a correct image 2367dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // representation. |callback| is invoked with the copy result when the copy 2377dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // operation has completed. 2387dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // Note that the texture bound to src_mailbox will have the min/mag filter set 2397dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // to GL_LINEAR and wrap_s/t set to CLAMP_TO_EDGE in this call. src_mailbox is 2407dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // assumed to be GL_TEXTURE_2D. 2417dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch void CropScaleReadbackAndCleanMailbox( 2427dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch const gpu::Mailbox& src_mailbox, 2437dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch uint32 sync_point, 2447dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch const gfx::Size& src_size, 2457dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch const gfx::Rect& src_subrect, 2467dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch const gfx::Size& dst_size, 2477dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch unsigned char* out, 2487dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch const base::Callback<void(bool)>& callback); 2497dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 2505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Copies the texture data out of |texture| into |out|. |size| is the 2515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // size of the texture. No post processing is applied to the pixels. The 2525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // texture is assumed to have a format of GL_RGBA with a pixel type of 2535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // GL_UNSIGNED_BYTE. This is a blocking call that calls glReadPixels on this 2545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // current context. 2555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void ReadbackTextureSync(WebKit::WebGLId texture, 2562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const gfx::Rect& src_rect, 2575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) unsigned char* out); 2585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Creates a copy of the specified texture. |size| is the size of the texture. 26090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Note that the src_texture will have the min/mag filter set to GL_LINEAR 26190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // and wrap_s/t set to CLAMP_TO_EDGE in this call. 2625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) WebKit::WebGLId CopyTexture(WebKit::WebGLId texture, 2635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const gfx::Size& size); 2645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Creates a scaled copy of the specified texture. |src_size| is the size of 2665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // the texture and |dst_size| is the size of the resulting copy. 26790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Note that the src_texture will have the min/mag filter set to GL_LINEAR 26890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // and wrap_s/t set to CLAMP_TO_EDGE in this call. 26990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebKit::WebGLId CopyAndScaleTexture( 27090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebKit::WebGLId texture, 27190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) const gfx::Size& src_size, 27290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) const gfx::Size& dst_size, 27390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) bool vertically_flip_texture, 27490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ScalerQuality quality); 2755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Returns the shader compiled from the source. 2775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) WebKit::WebGLId CompileShaderFromSource(const WebKit::WGC3Dchar* source, 2785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) WebKit::WGC3Denum type); 2795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Copies all pixels from |previous_texture| into |texture| that are 2812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // inside the region covered by |old_damage| but not part of |new_damage|. 2822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) void CopySubBufferDamage(WebKit::WebGLId texture, 2832a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) WebKit::WebGLId previous_texture, 2842a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const SkRegion& new_damage, 2852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const SkRegion& old_damage); 2862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 287868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // Simply creates a texture. 288868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) WebKit::WebGLId CreateTexture(); 289868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 2907dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // Creates a texture and consumes a mailbox into it. Returns 0 on failure. 2917dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch // Note the mailbox is assumed to be GL_TEXTURE_2D. 2927dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch WebKit::WebGLId ConsumeMailboxToTexture(const gpu::Mailbox& mailbox, 2937dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch uint32 sync_point); 2947dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 295868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // Resizes the texture's size to |size|. 296868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) void ResizeTexture(WebKit::WebGLId texture, const gfx::Size& size); 297868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 298868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // Copies the framebuffer data given in |rect| to |texture|. 299868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) void CopyTextureSubImage(WebKit::WebGLId texture, const gfx::Rect& rect); 300868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 301868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // Copies the all framebuffer data to |texture|. |size| specifies the 302868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // size of the framebuffer. 303868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) void CopyTextureFullImage(WebKit::WebGLId texture, const gfx::Size& size); 304868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 30590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // A scaler will cache all intermediate textures and programs 30690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // needed to scale from a specified size to a destination size. 30790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // If the source or destination sizes changes, you must create 30890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // a new scaler. 30990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) class CONTENT_EXPORT ScalerInterface { 31090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) public: 31190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ScalerInterface() {} 31290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) virtual ~ScalerInterface() {} 31390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 31490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Note that the src_texture will have the min/mag filter set to GL_LINEAR 31590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // and wrap_s/t set to CLAMP_TO_EDGE in this call. 31690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) virtual void Scale(WebKit::WebGLId source_texture, 31790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebKit::WebGLId dest_texture) = 0; 31890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) virtual const gfx::Size& SrcSize() = 0; 31990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) virtual const gfx::Rect& SrcSubrect() = 0; 32090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) virtual const gfx::Size& DstSize() = 0; 32190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) }; 32290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 32390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Note that the quality may be adjusted down if texture 32490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // allocations fail or hardware doesn't support the requtested 32590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // quality. Note that ScalerQuality enum is arranged in 32690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // numerical order for simplicity. 32790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) ScalerInterface* CreateScaler(ScalerQuality quality, 32890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) const gfx::Size& src_size, 32990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) const gfx::Rect& src_subrect, 33090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) const gfx::Size& dst_size, 33190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) bool vertically_flip_texture, 33290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) bool swizzle); 33390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 334868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // Create a readback pipeline that will scale a subsection of the source 335868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // texture, then convert it to YUV422 planar form and then read back that. 336868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // This reduces the amount of memory read from GPU to CPU memory by a factor 337868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // 2.6, which can be quite handy since readbacks have very limited speed 338868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // on some platforms. All values in |dst_size| and |dst_subrect| must be 339868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // a multiple of two. If |use_mrt| is true, the pipeline will try to optimize 340868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // the YUV conversion using the multi-render-target extension. |use_mrt| 341868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // should only be set to false for testing. 342868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) ReadbackYUVInterface* CreateReadbackPipelineYUV( 343868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) ScalerQuality quality, 344868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) const gfx::Size& src_size, 345868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) const gfx::Rect& src_subrect, 346868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) const gfx::Size& dst_size, 347868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) const gfx::Rect& dst_subrect, 348868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) bool flip_vertically, 349868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) bool use_mrt); 350868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 351868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // Returns the maximum number of draw buffers available, 352868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // 0 if GL_EXT_draw_buffers is not available. 353868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) WebKit::WGC3Dint MaxDrawBuffers(); 354868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 35590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) protected: 3565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) class CopyTextureToImpl; 3575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Creates |copy_texture_to_impl_| if NULL. 3595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void InitCopyTextToImpl(); 36090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // Creates |scaler_impl_| if NULL. 36190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) void InitScalerImpl(); 3625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 36390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) WebKit::WebGraphicsContext3D* context_; 3645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) scoped_ptr<CopyTextureToImpl> copy_texture_to_impl_; 36590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) scoped_ptr<GLHelperScaling> scaler_impl_; 3665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(GLHelper); 3685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 3695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 370868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)// Similar to a ScalerInterface, a yuv readback pipeline will 371868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)// cache a scaler and all intermediate textures and frame buffers 372868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)// needed to scale, crop, letterbox and read back a texture from 373868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)// the GPU into CPU-accessible RAM. A single readback pipeline 374868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)// can handle multiple outstanding readbacks at the same time, but 375868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)// if the source or destination sizes change, you'll need to create 376868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)// a new readback pipeline. 377868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)class CONTENT_EXPORT ReadbackYUVInterface { 378868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)public: 379868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) ReadbackYUVInterface() {} 380868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) virtual ~ReadbackYUVInterface() {} 381868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 382868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // Note that |target| must use YV12 format. 383868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) virtual void ReadbackYUV( 3847dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch const gpu::Mailbox& mailbox, 3857dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch uint32 sync_point, 386868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) media::VideoFrame* target, 387868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) const base::Callback<void(bool)>& callback) = 0; 388868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) virtual GLHelper::ScalerInterface* scaler() = 0; 389868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)}; 390868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 3915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace content 3925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // CONTENT_COMMON_GPU_CLIENT_GL_HELPER_H_ 394