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1 // Copyright 2012 The Chromium Authors. All rights reserved. | 1 // Copyright 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "cc/output/texture_copier.h" | 5 #include "cc/output/texture_copier.h" |
6 | 6 |
7 #include "base/debug/trace_event.h" | 7 #include "base/debug/trace_event.h" |
8 #include "build/build_config.h" | 8 #include "build/build_config.h" |
9 #include "cc/output/gl_renderer.h" // For the GLC() macro. | 9 #include "cc/output/gl_renderer.h" // For the GLC() macro. |
10 #include "third_party/WebKit/Source/Platform/chromium/public/WebGraphicsContext3
D.h" | 10 #include "third_party/WebKit/Source/Platform/chromium/public/WebGraphicsContext3
D.h" |
11 #include "third_party/khronos/GLES2/gl2.h" | 11 #include "third_party/khronos/GLES2/gl2.h" |
12 | 12 |
13 namespace cc { | 13 namespace cc { |
14 | 14 |
15 AcceleratedTextureCopier::AcceleratedTextureCopier( | 15 AcceleratedTextureCopier::AcceleratedTextureCopier( |
16 WebKit::WebGraphicsContext3D* context, | 16 WebKit::WebGraphicsContext3D* context, |
17 bool using_bind_uniforms, | 17 bool using_bind_uniforms, |
18 int highp_threshold_min) | 18 int highp_threshold_min) |
19 : context_(context) | 19 : context_(context) |
20 , using_bind_uniforms_(using_bind_uniforms) | 20 , using_bind_uniforms_(using_bind_uniforms) |
21 , highp_threshold_min_(highp_threshold_min) { | 21 , highp_threshold_min_(highp_threshold_min) |
| 22 , highp_threshold_cache_(0) { |
22 DCHECK(context_); | 23 DCHECK(context_); |
23 GLC(context_, fbo_ = context_->createFramebuffer()); | 24 GLC(context_, fbo_ = context_->createFramebuffer()); |
24 GLC(context_, position_buffer_ = context_->createBuffer()); | 25 GLC(context_, position_buffer_ = context_->createBuffer()); |
25 | 26 |
26 static const float kPositions[4][4] = { { -1, -1, 0, 1 }, { 1, -1, 0, 1 }, | 27 static const float kPositions[4][4] = { { -1, -1, 0, 1 }, { 1, -1, 0, 1 }, |
27 { 1, 1, 0, 1 }, { -1, 1, 0, 1 } }; | 28 { 1, 1, 0, 1 }, { -1, 1, 0, 1 } }; |
28 | 29 |
29 GLC(context_, context_->bindBuffer(GL_ARRAY_BUFFER, position_buffer_)); | 30 GLC(context_, context_->bindBuffer(GL_ARRAY_BUFFER, position_buffer_)); |
30 GLC(context_, | 31 GLC(context_, |
31 context_->bufferData( | 32 context_->bufferData( |
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72 GLC(context_, | 73 GLC(context_, |
73 context_->bindTexture(GL_TEXTURE_2D, parameters.source_texture)); | 74 context_->bindTexture(GL_TEXTURE_2D, parameters.source_texture)); |
74 GLC(context_, | 75 GLC(context_, |
75 context_->texParameteri( | 76 context_->texParameteri( |
76 GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST)); | 77 GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST)); |
77 GLC(context_, | 78 GLC(context_, |
78 context_->texParameteri( | 79 context_->texParameteri( |
79 GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST)); | 80 GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST)); |
80 | 81 |
81 TexCoordPrecision texCoordPrecision = TexCoordPrecisionRequired( | 82 TexCoordPrecision texCoordPrecision = TexCoordPrecisionRequired( |
82 context_, highp_threshold_min_, parameters.size); | 83 context_, &highp_threshold_cache_, highp_threshold_min_, parameters.size); |
83 if (texCoordPrecision == TexCoordPrecisionHigh) { | 84 if (texCoordPrecision == TexCoordPrecisionHigh) { |
84 if (!blit_program_highp_->initialized()) | 85 if (!blit_program_highp_->initialized()) |
85 blit_program_highp_->Initialize(context_, using_bind_uniforms_); | 86 blit_program_highp_->Initialize(context_, using_bind_uniforms_); |
86 | 87 |
87 // TODO(danakj): Use EXT_framebuffer_blit if available. | 88 // TODO(danakj): Use EXT_framebuffer_blit if available. |
88 GLC(context_, context_->useProgram(blit_program_highp_->program())); | 89 GLC(context_, context_->useProgram(blit_program_highp_->program())); |
89 } else { | 90 } else { |
90 if (!blit_program_->initialized()) | 91 if (!blit_program_->initialized()) |
91 blit_program_->Initialize(context_, using_bind_uniforms_); | 92 blit_program_->Initialize(context_, using_bind_uniforms_); |
92 | 93 |
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123 GLC(context_, context_->bindTexture(GL_TEXTURE_2D, 0)); | 124 GLC(context_, context_->bindTexture(GL_TEXTURE_2D, 0)); |
124 | 125 |
125 GLC(context_, context_->enable(GL_SCISSOR_TEST)); | 126 GLC(context_, context_->enable(GL_SCISSOR_TEST)); |
126 } | 127 } |
127 | 128 |
128 void AcceleratedTextureCopier::Flush() { | 129 void AcceleratedTextureCopier::Flush() { |
129 GLC(context_, context_->flush()); | 130 GLC(context_, context_->flush()); |
130 } | 131 } |
131 | 132 |
132 } // namespace cc | 133 } // namespace cc |
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