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Side by Side Diff: gpu/command_buffer/service/feature_info.cc

Issue 8680002: Added minimal support to command buffer for GL_ARB_texture_rectangle (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: Created 9 years ago
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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2011 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 <set> 5 #include <set>
6 #include <string> 6 #include <string>
7 #include "gpu/command_buffer/service/feature_info.h" 7 #include "gpu/command_buffer/service/feature_info.h"
8 #include "gpu/command_buffer/service/gl_utils.h" 8 #include "gpu/command_buffer/service/gl_utils.h"
9 #include "ui/gfx/gl/gl_context.h" 9 #include "ui/gfx/gl/gl_context.h"
10 #include "ui/gfx/gl/gl_implementation.h" 10 #include "ui/gfx/gl/gl_implementation.h"
11 #if defined(OS_MACOSX)
12 #include "ui/gfx/surface/io_surface_support_mac.h"
13 #endif
11 14
12 namespace gpu { 15 namespace gpu {
13 namespace gles2 { 16 namespace gles2 {
14 17
15 FeatureInfo::FeatureInfo() { 18 FeatureInfo::FeatureInfo() {
16 } 19 }
17 20
18 FeatureInfo::~FeatureInfo() { 21 FeatureInfo::~FeatureInfo() {
19 } 22 }
20 23
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347 validators_.get_tex_param_target.AddValue(GL_TEXTURE_EXTERNAL_OES); 350 validators_.get_tex_param_target.AddValue(GL_TEXTURE_EXTERNAL_OES);
348 validators_.texture_parameter.AddValue(GL_REQUIRED_TEXTURE_IMAGE_UNITS_OES); 351 validators_.texture_parameter.AddValue(GL_REQUIRED_TEXTURE_IMAGE_UNITS_OES);
349 validators_.g_l_state.AddValue(GL_TEXTURE_BINDING_EXTERNAL_OES); 352 validators_.g_l_state.AddValue(GL_TEXTURE_BINDING_EXTERNAL_OES);
350 } 353 }
351 354
352 if (ext.Desire("GL_CHROMIUM_stream_texture")) { 355 if (ext.Desire("GL_CHROMIUM_stream_texture")) {
353 AddExtensionString("GL_CHROMIUM_stream_texture"); 356 AddExtensionString("GL_CHROMIUM_stream_texture");
354 feature_flags_.chromium_stream_texture = true; 357 feature_flags_.chromium_stream_texture = true;
355 } 358 }
356 359
360 // Ideally we would only expose this extension on Mac OS X, to
361 // support GL_CHROMIUM_iosurface and the compositor. We don't want
362 // applications to start using it; they should use ordinary non-
363 // power-of-two textures. However, for unit testing purposes we
364 // expose it on all supported platforms.
365 if (ext.HaveAndDesire("GL_ARB_texture_rectangle")) {
366 AddExtensionString("GL_ARB_texture_rectangle");
367 feature_flags_.arb_texture_rectangle = true;
368 validators_.texture_bind_target.AddValue(GL_TEXTURE_RECTANGLE_ARB);
369 // For the moment we don't add this enum to the texture_target
370 // validator. This implies that the only way to get image data into a
371 // rectangular texture is via glTexImageIOSurface2DCHROMIUM, which is
372 // just fine since again we don't want applications depending on this
373 // extension.
374 validators_.get_tex_param_target.AddValue(GL_TEXTURE_RECTANGLE_ARB);
375 validators_.g_l_state.AddValue(GL_TEXTURE_BINDING_RECTANGLE_ARB);
376 }
377
378 #if defined(OS_MACOSX)
379 if (IOSurfaceSupport::Initialize()) {
380 AddExtensionString("GL_CHROMIUM_iosurface");
381 }
382 #endif
383
357 // TODO(gman): Add support for these extensions. 384 // TODO(gman): Add support for these extensions.
358 // GL_OES_depth32 385 // GL_OES_depth32
359 // GL_OES_element_index_uint 386 // GL_OES_element_index_uint
360 387
361 feature_flags_.enable_texture_float_linear = enable_texture_float_linear; 388 feature_flags_.enable_texture_float_linear = enable_texture_float_linear;
362 feature_flags_.enable_texture_half_float_linear = 389 feature_flags_.enable_texture_half_float_linear =
363 enable_texture_half_float_linear; 390 enable_texture_half_float_linear;
364 feature_flags_.npot_ok = npot_ok; 391 feature_flags_.npot_ok = npot_ok;
365 392
366 if (ext.HaveAndDesire("GL_CHROMIUM_post_sub_buffer")) { 393 if (ext.HaveAndDesire("GL_CHROMIUM_post_sub_buffer")) {
367 AddExtensionString("GL_CHROMIUM_post_sub_buffer"); 394 AddExtensionString("GL_CHROMIUM_post_sub_buffer");
368 } 395 }
369 } 396 }
370 397
371 void FeatureInfo::AddExtensionString(const std::string& str) { 398 void FeatureInfo::AddExtensionString(const std::string& str) {
372 if (extensions_.find(str) == std::string::npos) { 399 if (extensions_.find(str) == std::string::npos) {
373 extensions_ += (extensions_.empty() ? "" : " ") + str; 400 extensions_ += (extensions_.empty() ? "" : " ") + str;
374 } 401 }
375 } 402 }
376 403
377 } // namespace gles2 404 } // namespace gles2
378 } // namespace gpu 405 } // namespace gpu
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