feature_info.cc revision 0529e5d033099cbfc42635f6f6183833b09dff6e
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)#include "gpu/command_buffer/service/feature_info.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <set> 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/command_line.h" 105d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include "base/macros.h" 110529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch#include "base/metrics/histogram.h" 12c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#include "base/strings/string_number_conversions.h" 13c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#include "base/strings/string_split.h" 14868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)#include "base/strings/string_util.h" 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "gpu/command_buffer/service/gl_utils.h" 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "gpu/command_buffer/service/gpu_switches.h" 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/gl/gl_implementation.h" 187d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_MACOSX) 207d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles)#include "ui/gl/io_surface_support_mac.h" 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace gpu { 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace gles2 { 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace { 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct FormatInfo { 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GLenum format; 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const GLenum* types; 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t count; 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class StringSet { 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) StringSet() {} 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) StringSet(const char* s) { 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Init(s); 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) StringSet(const std::string& str) { 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Init(str); 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void Init(const char* s) { 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string str(s ? s : ""); 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Init(str); 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void Init(const std::string& str) { 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::vector<std::string> tokens; 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Tokenize(str, " ", &tokens); 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) string_set_.insert(tokens.begin(), tokens.end()); 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool Contains(const char* s) { 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return string_set_.find(s) != string_set_.end(); 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool Contains(const std::string& s) { 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return string_set_.find(s) != string_set_.end(); 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::set<std::string> string_set_; 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 69c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// Process a string of wordaround type IDs (seperated by ',') and set up 70c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// the corresponding Workaround flags. 71c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)void StringToWorkarounds( 72c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) const std::string& types, FeatureInfo::Workarounds* workarounds) { 73c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) DCHECK(workarounds); 74c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) std::vector<std::string> pieces; 75c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) base::SplitString(types, ',', &pieces); 76c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) for (size_t i = 0; i < pieces.size(); ++i) { 77c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) int number = 0; 78c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) bool succeed = base::StringToInt(pieces[i], &number); 79c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) DCHECK(succeed); 80c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) switch (number) { 81c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#define GPU_OP(type, name) \ 82c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) case gpu::type: \ 83c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) workarounds->name = true; \ 84c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) break; 85c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) GPU_DRIVER_BUG_WORKAROUNDS(GPU_OP) 86c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#undef GPU_OP 87c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) default: 88c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) NOTIMPLEMENTED(); 89c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) } 90c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) } 91c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (workarounds->max_texture_size_limit_4096) 92c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) workarounds->max_texture_size = 4096; 93c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (workarounds->max_cube_map_texture_size_limit_4096) 94c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) workarounds->max_cube_map_texture_size = 4096; 95c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (workarounds->max_cube_map_texture_size_limit_1024) 96c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) workarounds->max_cube_map_texture_size = 1024; 97c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (workarounds->max_cube_map_texture_size_limit_512) 98c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) workarounds->max_cube_map_texture_size = 512; 990529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch 1000529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch if (workarounds->max_fragment_uniform_vectors_32) 1010529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch workarounds->max_fragment_uniform_vectors = 32; 1020529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch if (workarounds->max_varying_vectors_16) 1030529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch workarounds->max_varying_vectors = 16; 1040529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch if (workarounds->max_vertex_uniform_vectors_256) 1050529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch workarounds->max_vertex_uniform_vectors = 256; 106c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 107c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 1085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // anonymous namespace. 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)FeatureInfo::FeatureFlags::FeatureFlags() 1115d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) : chromium_color_buffer_float_rgba(false), 1125d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) chromium_color_buffer_float_rgb(false), 1135d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) chromium_framebuffer_multisample(false), 1140529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch chromium_sync_query(false), 115f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) use_core_framebuffer_multisample(false), 1167dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch multisampled_render_to_texture(false), 1177dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch use_img_for_multisampled_render_to_texture(false), 1185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) oes_standard_derivatives(false), 1195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) oes_egl_image_external(false), 12068043e1e95eeb07d5cae7aca370b26518b0867d6Torne (Richard Coles) oes_depth24(false), 121a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) oes_compressed_etc1_rgb8_texture(false), 122f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) packed_depth24_stencil8(false), 1235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) npot_ok(false), 1245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enable_texture_float_linear(false), 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enable_texture_half_float_linear(false), 1265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) angle_translated_shader_source(false), 1275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) angle_pack_reverse_row_order(false), 1285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) arb_texture_rectangle(false), 1295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) angle_instanced_arrays(false), 1305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) occlusion_query_boolean(false), 1315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) use_arb_occlusion_query2_for_occlusion_query_boolean(false), 1325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) use_arb_occlusion_query_for_occlusion_query_boolean(false), 1335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) native_vertex_array_object(false), 134a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) ext_texture_format_bgra8888(false), 1352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) enable_shader_name_hashing(false), 1362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) enable_samplers(false), 137868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) ext_draw_buffers(false), 138a3f7b4e666c476898878fa745f637129375cd889Ben Murdoch ext_frag_depth(false), 1390529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch ext_shader_texture_lod(false), 140424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) use_async_readpixels(false), 1410f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) map_buffer_range(false), 142f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) ext_discard_framebuffer(false), 143f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) angle_depth_texture(false), 144f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) is_angle(false), 145a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) is_swiftshader(false), 146a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) angle_texture_usage(false), 147a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) ext_texture_storage(false) { 1485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 150c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)FeatureInfo::Workarounds::Workarounds() : 151c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#define GPU_OP(type, name) name(false), 152c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) GPU_DRIVER_BUG_WORKAROUNDS(GPU_OP) 153c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#undef GPU_OP 154c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) max_texture_size(0), 1550529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch max_cube_map_texture_size(0), 1560529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch max_fragment_uniform_vectors(0), 1570529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch max_varying_vectors(0), 1580529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch max_vertex_uniform_vectors(0) { 1595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)FeatureInfo::FeatureInfo() { 16258537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) InitializeBasicState(*CommandLine::ForCurrentProcess()); 16358537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)} 16458537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) 16558537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)FeatureInfo::FeatureInfo(const CommandLine& command_line) { 16658537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) InitializeBasicState(command_line); 16758537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)} 16858537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) 16958537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)void FeatureInfo::InitializeBasicState(const CommandLine& command_line) { 17058537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) if (command_line.HasSwitch(switches::kGpuDriverBugWorkarounds)) { 17158537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) std::string types = command_line.GetSwitchValueASCII( 17258537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) switches::kGpuDriverBugWorkarounds); 17358537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) StringToWorkarounds(types, &workarounds_); 17458537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) } 17558537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) feature_flags_.enable_shader_name_hashing = 17658537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) !command_line.HasSwitch(switches::kDisableShaderNameHashing); 17758537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) 178f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) feature_flags_.is_swiftshader = 179f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) (command_line.GetSwitchValueASCII(switches::kUseGL) == "swiftshader"); 180f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) 1815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static const GLenum kAlphaTypes[] = { 1825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GL_UNSIGNED_BYTE, 1835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }; 1845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static const GLenum kRGBTypes[] = { 1855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GL_UNSIGNED_BYTE, 1865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GL_UNSIGNED_SHORT_5_6_5, 1875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }; 1885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static const GLenum kRGBATypes[] = { 1895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GL_UNSIGNED_BYTE, 1905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GL_UNSIGNED_SHORT_4_4_4_4, 1915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GL_UNSIGNED_SHORT_5_5_5_1, 1925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }; 1935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static const GLenum kLuminanceTypes[] = { 1945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GL_UNSIGNED_BYTE, 1955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }; 1965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static const GLenum kLuminanceAlphaTypes[] = { 1975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GL_UNSIGNED_BYTE, 1985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }; 1995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static const FormatInfo kFormatTypes[] = { 2005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { GL_ALPHA, kAlphaTypes, arraysize(kAlphaTypes), }, 2015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { GL_RGB, kRGBTypes, arraysize(kRGBTypes), }, 2025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { GL_RGBA, kRGBATypes, arraysize(kRGBATypes), }, 2035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { GL_LUMINANCE, kLuminanceTypes, arraysize(kLuminanceTypes), }, 2045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { GL_LUMINANCE_ALPHA, kLuminanceAlphaTypes, 2055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) arraysize(kLuminanceAlphaTypes), } , 2065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }; 2075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (size_t ii = 0; ii < arraysize(kFormatTypes); ++ii) { 2085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const FormatInfo& info = kFormatTypes[ii]; 2095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ValueValidator<GLenum>& validator = texture_format_validators_[info.format]; 2105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (size_t jj = 0; jj < info.count; ++jj) { 2115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validator.AddValue(info.types[jj]); 2125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 21658537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)bool FeatureInfo::Initialize() { 2175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) disallowed_features_ = DisallowedFeatures(); 21858537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) InitializeFeatures(); 2195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 2205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 22258537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)bool FeatureInfo::Initialize(const DisallowedFeatures& disallowed_features) { 2235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) disallowed_features_ = disallowed_features; 22458537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) InitializeFeatures(); 2255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 2265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 22858537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)void FeatureInfo::InitializeFeatures() { 2295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Figure out what extensions to turn on. 2302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) StringSet extensions( 2312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) reinterpret_cast<const char*>(glGetString(GL_EXTENSIONS))); 2325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool npot_ok = false; 2345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 235f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) const char* renderer_str = 236f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) reinterpret_cast<const char*>(glGetString(GL_RENDERER)); 237f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) if (renderer_str) { 238f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) feature_flags_.is_angle = StartsWithASCII(renderer_str, "ANGLE", true); 239f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) } 240f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) 241f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) bool is_es3 = false; 242f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) const char* version_str = 243f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) reinterpret_cast<const char*>(glGetString(GL_VERSION)); 244f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) if (version_str) { 245f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) std::string lstr(StringToLowerASCII(std::string(version_str))); 246f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) is_es3 = (lstr.substr(0, 12) == "opengl es 3."); 247f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) } 248f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) 2495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_ANGLE_translated_shader_source"); 2502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) AddExtensionString("GL_CHROMIUM_async_pixel_transfers"); 2515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_CHROMIUM_bind_uniform_location"); 2525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_CHROMIUM_command_buffer_query"); 2535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_CHROMIUM_command_buffer_latency_query"); 2545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_CHROMIUM_copy_texture"); 2555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_CHROMIUM_get_error_query"); 2562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) AddExtensionString("GL_CHROMIUM_lose_context"); 2572a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) AddExtensionString("GL_CHROMIUM_pixel_transfer_buffer_object"); 2585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_CHROMIUM_rate_limit_offscreen_context"); 2595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_CHROMIUM_resize"); 2605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_CHROMIUM_resource_safe"); 2615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_CHROMIUM_strict_attribs"); 2625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_CHROMIUM_texture_mailbox"); 2635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_EXT_debug_marker"); 2645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2652a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // OES_vertex_array_object is emulated if not present natively, 2662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // so the extension string is always exposed. 2672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) AddExtensionString("GL_OES_vertex_array_object"); 2682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!disallowed_features_.gpu_memory_manager) 2705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_CHROMIUM_gpu_memory_manager"); 2715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (extensions.Contains("GL_ANGLE_translated_shader_source")) { 2735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) feature_flags_.angle_translated_shader_source = true; 2745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Check if we should allow GL_EXT_texture_compression_dxt1 and 2775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // GL_EXT_texture_compression_s3tc. 2785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool enable_dxt1 = false; 2795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool enable_dxt3 = false; 2805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool enable_dxt5 = false; 2812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool have_s3tc = extensions.Contains("GL_EXT_texture_compression_s3tc"); 2822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool have_dxt3 = 2832a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) have_s3tc || extensions.Contains("GL_ANGLE_texture_compression_dxt3"); 2842a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool have_dxt5 = 2852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) have_s3tc || extensions.Contains("GL_ANGLE_texture_compression_dxt5"); 2865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (extensions.Contains("GL_EXT_texture_compression_dxt1") || have_s3tc) { 2885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enable_dxt1 = true; 2895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (have_dxt3) { 2915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enable_dxt3 = true; 2925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (have_dxt5) { 2945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enable_dxt5 = true; 2955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (enable_dxt1) { 2985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_EXT_texture_compression_dxt1"); 2995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.compressed_texture_format.AddValue( 3005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GL_COMPRESSED_RGB_S3TC_DXT1_EXT); 3015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.compressed_texture_format.AddValue( 3025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GL_COMPRESSED_RGBA_S3TC_DXT1_EXT); 3035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (enable_dxt3) { 3065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The difference between GL_EXT_texture_compression_s3tc and 3075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // GL_CHROMIUM_texture_compression_dxt3 is that the former 3085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // requires on the fly compression. The latter does not. 3095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_CHROMIUM_texture_compression_dxt3"); 3105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.compressed_texture_format.AddValue( 3115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GL_COMPRESSED_RGBA_S3TC_DXT3_EXT); 3125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (enable_dxt5) { 3155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The difference between GL_EXT_texture_compression_s3tc and 3165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // GL_CHROMIUM_texture_compression_dxt5 is that the former 3175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // requires on the fly compression. The latter does not. 3185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_CHROMIUM_texture_compression_dxt5"); 3195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.compressed_texture_format.AddValue( 3205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GL_COMPRESSED_RGBA_S3TC_DXT5_EXT); 3215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Check if we should enable GL_EXT_texture_filter_anisotropic. 3242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (extensions.Contains("GL_EXT_texture_filter_anisotropic")) { 3255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_EXT_texture_filter_anisotropic"); 3265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.texture_parameter.AddValue( 3275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GL_TEXTURE_MAX_ANISOTROPY_EXT); 3285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.g_l_state.AddValue( 3295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT); 3305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Check if we should support GL_OES_packed_depth_stencil and/or 3335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // GL_GOOGLE_depth_texture / GL_CHROMIUM_depth_texture. 3345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // 3355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // NOTE: GL_OES_depth_texture requires support for depth cubemaps. 3365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // GL_ARB_depth_texture requires other features that 3375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // GL_OES_packed_depth_stencil does not provide. 3385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // 3395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Therefore we made up GL_GOOGLE_depth_texture / GL_CHROMIUM_depth_texture. 3405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // 3415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // GL_GOOGLE_depth_texture is legacy. As we exposed it into NaCl we can't 3425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // get rid of it. 3435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // 3445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool enable_depth_texture = false; 34590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) if (!workarounds_.disable_depth_texture && 346c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) (extensions.Contains("GL_ARB_depth_texture") || 347c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) extensions.Contains("GL_OES_depth_texture") || 348f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) extensions.Contains("GL_ANGLE_depth_texture") || is_es3)) { 3495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enable_depth_texture = true; 350f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) feature_flags_.angle_depth_texture = 351f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) extensions.Contains("GL_ANGLE_depth_texture"); 3525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (enable_depth_texture) { 3555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_CHROMIUM_depth_texture"); 3565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_GOOGLE_depth_texture"); 3575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) texture_format_validators_[GL_DEPTH_COMPONENT].AddValue(GL_UNSIGNED_SHORT); 3585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) texture_format_validators_[GL_DEPTH_COMPONENT].AddValue(GL_UNSIGNED_INT); 3595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.texture_internal_format.AddValue(GL_DEPTH_COMPONENT); 3605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.texture_format.AddValue(GL_DEPTH_COMPONENT); 3615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.pixel_type.AddValue(GL_UNSIGNED_SHORT); 3625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.pixel_type.AddValue(GL_UNSIGNED_INT); 3635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3652a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (extensions.Contains("GL_EXT_packed_depth_stencil") || 366f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) extensions.Contains("GL_OES_packed_depth_stencil") || is_es3) { 3675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_OES_packed_depth_stencil"); 368f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) feature_flags_.packed_depth24_stencil8 = true; 3695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (enable_depth_texture) { 370f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) texture_format_validators_[GL_DEPTH_STENCIL] 371f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) .AddValue(GL_UNSIGNED_INT_24_8); 3725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.texture_internal_format.AddValue(GL_DEPTH_STENCIL); 3735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.texture_format.AddValue(GL_DEPTH_STENCIL); 3745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.pixel_type.AddValue(GL_UNSIGNED_INT_24_8); 3755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.render_buffer_format.AddValue(GL_DEPTH24_STENCIL8); 3775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (extensions.Contains("GL_OES_vertex_array_object") || 3802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) extensions.Contains("GL_ARB_vertex_array_object") || 3812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) extensions.Contains("GL_APPLE_vertex_array_object")) { 3822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) feature_flags_.native_vertex_array_object = true; 3832a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 3845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // If we're using client_side_arrays we have to emulate 3862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // vertex array objects since vertex array objects do not work 3872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // with client side arrays. 3882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (workarounds_.use_client_side_arrays_for_stream_buffers) { 3892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) feature_flags_.native_vertex_array_object = false; 3902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 3912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (extensions.Contains("GL_OES_element_index_uint") || 3932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) gfx::HasDesktopGLFeatures()) { 3942a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) AddExtensionString("GL_OES_element_index_uint"); 3952a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) validators_.index_type.AddValue(GL_UNSIGNED_INT); 3965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool enable_texture_format_bgra8888 = false; 3995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool enable_read_format_bgra = false; 4008bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) bool enable_render_buffer_bgra = false; 4018bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 4025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Check if we should allow GL_EXT_texture_format_BGRA8888 4032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (extensions.Contains("GL_EXT_texture_format_BGRA8888") || 4042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) extensions.Contains("GL_APPLE_texture_format_BGRA8888") || 4052a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) extensions.Contains("GL_EXT_bgra")) { 4065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enable_texture_format_bgra8888 = true; 4075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4092a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (extensions.Contains("GL_EXT_bgra")) { 4108bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) enable_render_buffer_bgra = true; 4115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (extensions.Contains("GL_EXT_read_format_bgra") || 4142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) extensions.Contains("GL_EXT_bgra")) { 4155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enable_read_format_bgra = true; 4165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (enable_texture_format_bgra8888) { 419a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) feature_flags_.ext_texture_format_bgra8888 = true; 4205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_EXT_texture_format_BGRA8888"); 4215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) texture_format_validators_[GL_BGRA_EXT].AddValue(GL_UNSIGNED_BYTE); 4225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.texture_internal_format.AddValue(GL_BGRA_EXT); 4235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.texture_format.AddValue(GL_BGRA_EXT); 4245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (enable_read_format_bgra) { 4275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_EXT_read_format_bgra"); 4285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.read_pixel_format.AddValue(GL_BGRA_EXT); 4295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4318bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) if (enable_render_buffer_bgra) { 4328bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) AddExtensionString("GL_CHROMIUM_renderbuffer_format_BGRA8888"); 4338bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) validators_.render_buffer_format.AddValue(GL_BGRA8_EXT); 4348bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) } 4358bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 4362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (extensions.Contains("GL_OES_rgb8_rgba8") || gfx::HasDesktopGLFeatures()) { 4372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) AddExtensionString("GL_OES_rgb8_rgba8"); 4382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) validators_.render_buffer_format.AddValue(GL_RGB8_OES); 4392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) validators_.render_buffer_format.AddValue(GL_RGBA8_OES); 4405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Check if we should allow GL_OES_texture_npot 4432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (extensions.Contains("GL_ARB_texture_non_power_of_two") || 4442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) extensions.Contains("GL_OES_texture_npot")) { 4455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_OES_texture_npot"); 4465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) npot_ok = true; 4475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Check if we should allow GL_OES_texture_float, GL_OES_texture_half_float, 4505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // GL_OES_texture_float_linear, GL_OES_texture_half_float_linear 4515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool enable_texture_float = false; 4525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool enable_texture_float_linear = false; 4535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool enable_texture_half_float = false; 4545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool enable_texture_half_float_linear = false; 4555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4565d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) bool may_enable_chromium_color_buffer_float = false; 4575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4585d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (extensions.Contains("GL_ARB_texture_float")) { 4595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enable_texture_float = true; 4605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enable_texture_float_linear = true; 4615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enable_texture_half_float = true; 4625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enable_texture_half_float_linear = true; 4635d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) may_enable_chromium_color_buffer_float = true; 4645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else { 4655d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (extensions.Contains("GL_OES_texture_float")) { 4665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enable_texture_float = true; 4675d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (extensions.Contains("GL_OES_texture_float_linear")) { 4685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enable_texture_float_linear = true; 4695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4705d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if ((is_es3 && extensions.Contains("GL_EXT_color_buffer_float")) || 4715d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) feature_flags_.is_angle) { 4725d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) may_enable_chromium_color_buffer_float = true; 4735d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 4745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4755d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (extensions.Contains("GL_OES_texture_half_float")) { 4765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enable_texture_half_float = true; 4775d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (extensions.Contains("GL_OES_texture_half_float_linear")) { 4785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enable_texture_half_float_linear = true; 4795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (enable_texture_float) { 4845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) texture_format_validators_[GL_ALPHA].AddValue(GL_FLOAT); 4855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) texture_format_validators_[GL_RGB].AddValue(GL_FLOAT); 4865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) texture_format_validators_[GL_RGBA].AddValue(GL_FLOAT); 4875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) texture_format_validators_[GL_LUMINANCE].AddValue(GL_FLOAT); 4885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) texture_format_validators_[GL_LUMINANCE_ALPHA].AddValue(GL_FLOAT); 4895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.pixel_type.AddValue(GL_FLOAT); 4905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.read_pixel_type.AddValue(GL_FLOAT); 4915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_OES_texture_float"); 4925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (enable_texture_float_linear) { 4935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_OES_texture_float_linear"); 4945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (enable_texture_half_float) { 4985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) texture_format_validators_[GL_ALPHA].AddValue(GL_HALF_FLOAT_OES); 4995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) texture_format_validators_[GL_RGB].AddValue(GL_HALF_FLOAT_OES); 5005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) texture_format_validators_[GL_RGBA].AddValue(GL_HALF_FLOAT_OES); 5015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) texture_format_validators_[GL_LUMINANCE].AddValue(GL_HALF_FLOAT_OES); 5025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) texture_format_validators_[GL_LUMINANCE_ALPHA].AddValue(GL_HALF_FLOAT_OES); 5035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.pixel_type.AddValue(GL_HALF_FLOAT_OES); 5045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.read_pixel_type.AddValue(GL_HALF_FLOAT_OES); 5055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_OES_texture_half_float"); 5065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (enable_texture_half_float_linear) { 5075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_OES_texture_half_float_linear"); 5085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5115d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (may_enable_chromium_color_buffer_float) { 5125d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) COMPILE_ASSERT(GL_RGBA32F_ARB == GL_RGBA32F && 5135d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) GL_RGBA32F_EXT == GL_RGBA32F && 5145d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) GL_RGB32F_ARB == GL_RGB32F && 5155d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) GL_RGB32F_EXT == GL_RGB32F, 5165d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) sized_float_internal_format_variations_must_match); 5175d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // We don't check extension support beyond ARB_texture_float on desktop GL, 5185d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // and format support varies between GL configurations. For example, spec 5195d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // prior to OpenGL 3.0 mandates framebuffer support only for one 5205d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // implementation-chosen format, and ES3.0 EXT_color_buffer_float does not 5215d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // support rendering to RGB32F. Check for framebuffer completeness with 5225d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // formats that the extensions expose, and only enable an extension when a 5235d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // framebuffer created with its texture format is reported as complete. 5245d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) GLint fb_binding = 0; 5255d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) GLint tex_binding = 0; 5265d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) glGetIntegerv(GL_FRAMEBUFFER_BINDING, &fb_binding); 5275d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) glGetIntegerv(GL_TEXTURE_BINDING_2D, &tex_binding); 5285d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 5295d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) GLuint tex_id = 0; 5305d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) GLuint fb_id = 0; 5315d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) GLsizei width = 16; 5325d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 5335d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) glGenTextures(1, &tex_id); 5345d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) glGenFramebuffersEXT(1, &fb_id); 5355d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) glBindTexture(GL_TEXTURE_2D, tex_id); 5365d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Nearest filter needed for framebuffer completeness on some drivers. 5375d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); 5385d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA32F, width, width, 0, GL_RGBA, 5395d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) GL_FLOAT, NULL); 5405d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) glBindFramebufferEXT(GL_FRAMEBUFFER, fb_id); 5415d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) glFramebufferTexture2DEXT(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, 5425d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) GL_TEXTURE_2D, tex_id, 0); 5435d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) GLenum statusRGBA = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER); 5445d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB32F, width, width, 0, GL_RGB, 5455d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) GL_FLOAT, NULL); 5465d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) GLenum statusRGB = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER); 5475d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) glDeleteFramebuffersEXT(1, &fb_id); 5485d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) glDeleteTextures(1, &tex_id); 5495d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 5505d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) glBindFramebufferEXT(GL_FRAMEBUFFER, static_cast<GLuint>(fb_binding)); 5515d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) glBindTexture(GL_TEXTURE_2D, static_cast<GLuint>(tex_binding)); 5525d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 5535d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) DCHECK(glGetError() == GL_NO_ERROR); 5545d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 5555d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (statusRGBA == GL_FRAMEBUFFER_COMPLETE) { 5565d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) validators_.texture_internal_format.AddValue(GL_RGBA32F); 5575d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) feature_flags_.chromium_color_buffer_float_rgba = true; 5585d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) AddExtensionString("GL_CHROMIUM_color_buffer_float_rgba"); 5595d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 5605d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (statusRGB == GL_FRAMEBUFFER_COMPLETE) { 5615d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) validators_.texture_internal_format.AddValue(GL_RGB32F); 5625d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) feature_flags_.chromium_color_buffer_float_rgb = true; 5635d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) AddExtensionString("GL_CHROMIUM_color_buffer_float_rgb"); 5645d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 5655d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 5665d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 5675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Check for multisample support 5685d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (!workarounds_.disable_multisampling) { 5697dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch bool ext_has_multisample = 570f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) extensions.Contains("GL_EXT_framebuffer_multisample") || is_es3; 571f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) if (feature_flags_.is_angle) { 5727dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch ext_has_multisample |= 573f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) extensions.Contains("GL_ANGLE_framebuffer_multisample"); 5747dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch } 575f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) feature_flags_.use_core_framebuffer_multisample = is_es3; 5767dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch if (ext_has_multisample) { 5777dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch feature_flags_.chromium_framebuffer_multisample = true; 5787dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch validators_.frame_buffer_target.AddValue(GL_READ_FRAMEBUFFER_EXT); 5797dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch validators_.frame_buffer_target.AddValue(GL_DRAW_FRAMEBUFFER_EXT); 5807dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch validators_.g_l_state.AddValue(GL_READ_FRAMEBUFFER_BINDING_EXT); 5817dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch validators_.g_l_state.AddValue(GL_MAX_SAMPLES_EXT); 5827dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch validators_.render_buffer_parameter.AddValue(GL_RENDERBUFFER_SAMPLES_EXT); 5837dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch AddExtensionString("GL_CHROMIUM_framebuffer_multisample"); 5845d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 5855d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (extensions.Contains("GL_EXT_multisampled_render_to_texture")) { 5865d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) feature_flags_.multisampled_render_to_texture = true; 5875d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } else if (extensions.Contains("GL_IMG_multisampled_render_to_texture")) { 5885d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) feature_flags_.multisampled_render_to_texture = true; 5895d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) feature_flags_.use_img_for_multisampled_render_to_texture = true; 5905d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 5915d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (feature_flags_.multisampled_render_to_texture) { 5925d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) validators_.render_buffer_parameter.AddValue( 5935d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) GL_RENDERBUFFER_SAMPLES_EXT); 5945d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) validators_.g_l_state.AddValue(GL_MAX_SAMPLES_EXT); 5955d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) validators_.frame_buffer_parameter.AddValue( 5965d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_SAMPLES_EXT); 5975d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) AddExtensionString("GL_EXT_multisampled_render_to_texture"); 5987dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch } 5995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 601f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) if (extensions.Contains("GL_OES_depth24") || gfx::HasDesktopGLFeatures() || 602f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) is_es3) { 6035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_OES_depth24"); 60468043e1e95eeb07d5cae7aca370b26518b0867d6Torne (Richard Coles) feature_flags_.oes_depth24 = true; 6055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.render_buffer_format.AddValue(GL_DEPTH_COMPONENT24); 6065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 60890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) if (!workarounds_.disable_oes_standard_derivatives && 60990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) (extensions.Contains("GL_OES_standard_derivatives") || 61090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) gfx::HasDesktopGLFeatures())) { 6115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_OES_standard_derivatives"); 6125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) feature_flags_.oes_standard_derivatives = true; 6135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.hint_target.AddValue(GL_FRAGMENT_SHADER_DERIVATIVE_HINT_OES); 6145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.g_l_state.AddValue(GL_FRAGMENT_SHADER_DERIVATIVE_HINT_OES); 6155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (extensions.Contains("GL_OES_EGL_image_external")) { 6185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_OES_EGL_image_external"); 6195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) feature_flags_.oes_egl_image_external = true; 6205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.texture_bind_target.AddValue(GL_TEXTURE_EXTERNAL_OES); 6215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.get_tex_param_target.AddValue(GL_TEXTURE_EXTERNAL_OES); 6225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.texture_parameter.AddValue(GL_REQUIRED_TEXTURE_IMAGE_UNITS_OES); 6235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.g_l_state.AddValue(GL_TEXTURE_BINDING_EXTERNAL_OES); 6245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (extensions.Contains("GL_OES_compressed_ETC1_RGB8_texture")) { 6275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_OES_compressed_ETC1_RGB8_texture"); 628a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) feature_flags_.oes_compressed_etc1_rgb8_texture = true; 6295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.compressed_texture_format.AddValue(GL_ETC1_RGB8_OES); 6305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Ideally we would only expose this extension on Mac OS X, to 6335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // support GL_CHROMIUM_iosurface and the compositor. We don't want 6345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // applications to start using it; they should use ordinary non- 6355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // power-of-two textures. However, for unit testing purposes we 6365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // expose it on all supported platforms. 6372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (extensions.Contains("GL_ARB_texture_rectangle")) { 6385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_ARB_texture_rectangle"); 6395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) feature_flags_.arb_texture_rectangle = true; 6405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.texture_bind_target.AddValue(GL_TEXTURE_RECTANGLE_ARB); 6415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // For the moment we don't add this enum to the texture_target 6425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // validator. This implies that the only way to get image data into a 6435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // rectangular texture is via glTexImageIOSurface2DCHROMIUM, which is 6445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // just fine since again we don't want applications depending on this 6455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // extension. 6465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.get_tex_param_target.AddValue(GL_TEXTURE_RECTANGLE_ARB); 6475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.g_l_state.AddValue(GL_TEXTURE_BINDING_RECTANGLE_ARB); 6485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_MACOSX) 6515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (IOSurfaceSupport::Initialize()) { 6525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_CHROMIUM_iosurface"); 6535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 6555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // TODO(gman): Add support for these extensions. 6575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // GL_OES_depth32 6585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) feature_flags_.enable_texture_float_linear |= enable_texture_float_linear; 6605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) feature_flags_.enable_texture_half_float_linear |= 6615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enable_texture_half_float_linear; 6625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) feature_flags_.npot_ok |= npot_ok; 6635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (extensions.Contains("GL_ANGLE_pack_reverse_row_order")) { 6655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_ANGLE_pack_reverse_row_order"); 6665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) feature_flags_.angle_pack_reverse_row_order = true; 6675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.pixel_store.AddValue(GL_PACK_REVERSE_ROW_ORDER_ANGLE); 6685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.g_l_state.AddValue(GL_PACK_REVERSE_ROW_ORDER_ANGLE); 6695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6712a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (extensions.Contains("GL_ANGLE_texture_usage")) { 672a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) feature_flags_.angle_texture_usage = true; 6735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_ANGLE_texture_usage"); 6745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.texture_parameter.AddValue(GL_TEXTURE_USAGE_ANGLE); 6755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (extensions.Contains("GL_EXT_texture_storage")) { 678a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) feature_flags_.ext_texture_storage = true; 6795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_EXT_texture_storage"); 6805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.texture_parameter.AddValue(GL_TEXTURE_IMMUTABLE_FORMAT_EXT); 6815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (enable_texture_format_bgra8888) 6825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.texture_internal_format_storage.AddValue(GL_BGRA8_EXT); 6835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (enable_texture_float) { 6845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.texture_internal_format_storage.AddValue(GL_RGBA32F_EXT); 6855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.texture_internal_format_storage.AddValue(GL_RGB32F_EXT); 6865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.texture_internal_format_storage.AddValue(GL_ALPHA32F_EXT); 6875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.texture_internal_format_storage.AddValue( 6885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GL_LUMINANCE32F_EXT); 6895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.texture_internal_format_storage.AddValue( 6905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GL_LUMINANCE_ALPHA32F_EXT); 6915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (enable_texture_half_float) { 6935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.texture_internal_format_storage.AddValue(GL_RGBA16F_EXT); 6945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.texture_internal_format_storage.AddValue(GL_RGB16F_EXT); 6955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.texture_internal_format_storage.AddValue(GL_ALPHA16F_EXT); 6965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.texture_internal_format_storage.AddValue( 6975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GL_LUMINANCE16F_EXT); 6985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.texture_internal_format_storage.AddValue( 6995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GL_LUMINANCE_ALPHA16F_EXT); 7005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 7015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 7025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool have_ext_occlusion_query_boolean = 7042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) extensions.Contains("GL_EXT_occlusion_query_boolean"); 7052a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool have_arb_occlusion_query2 = 7062a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) extensions.Contains("GL_ARB_occlusion_query2"); 7072a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool have_arb_occlusion_query = 7082a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) extensions.Contains("GL_ARB_occlusion_query"); 7095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 710c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (!workarounds_.disable_ext_occlusion_query && 7115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) (have_ext_occlusion_query_boolean || 7125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) have_arb_occlusion_query2 || 7135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) have_arb_occlusion_query)) { 7145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_EXT_occlusion_query_boolean"); 7155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) feature_flags_.occlusion_query_boolean = true; 7165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) feature_flags_.use_arb_occlusion_query2_for_occlusion_query_boolean = 7175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) !have_ext_occlusion_query_boolean && have_arb_occlusion_query2; 7185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) feature_flags_.use_arb_occlusion_query_for_occlusion_query_boolean = 7195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) !have_ext_occlusion_query_boolean && have_arb_occlusion_query && 7205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) !have_arb_occlusion_query2; 7215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 7225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 723424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) if (!workarounds_.disable_angle_instanced_arrays && 724424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) (extensions.Contains("GL_ANGLE_instanced_arrays") || 725424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) (extensions.Contains("GL_ARB_instanced_arrays") && 726a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch extensions.Contains("GL_ARB_draw_instanced")) || 727a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch is_es3)) { 7285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddExtensionString("GL_ANGLE_instanced_arrays"); 7295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) feature_flags_.angle_instanced_arrays = true; 7305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validators_.vertex_attribute.AddValue(GL_VERTEX_ATTRIB_ARRAY_DIVISOR_ANGLE); 7315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 7325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 733c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (!workarounds_.disable_ext_draw_buffers && 734c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) (extensions.Contains("GL_ARB_draw_buffers") || 735c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) extensions.Contains("GL_EXT_draw_buffers"))) { 7362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) AddExtensionString("GL_EXT_draw_buffers"); 7372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) feature_flags_.ext_draw_buffers = true; 7382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 7392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) GLint max_color_attachments = 0; 7402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS_EXT, &max_color_attachments); 7412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) for (GLenum i = GL_COLOR_ATTACHMENT1_EXT; 7422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) i < static_cast<GLenum>(GL_COLOR_ATTACHMENT0 + max_color_attachments); 7432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ++i) { 7442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) validators_.attachment.AddValue(i); 7452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 7462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 7472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) validators_.g_l_state.AddValue(GL_MAX_COLOR_ATTACHMENTS_EXT); 7482a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) validators_.g_l_state.AddValue(GL_MAX_DRAW_BUFFERS_ARB); 7492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) GLint max_draw_buffers = 0; 7502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) glGetIntegerv(GL_MAX_DRAW_BUFFERS_ARB, &max_draw_buffers); 7512a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) for (GLenum i = GL_DRAW_BUFFER0_ARB; 7522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) i < static_cast<GLenum>(GL_DRAW_BUFFER0_ARB + max_draw_buffers); 7532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ++i) { 7542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) validators_.g_l_state.AddValue(i); 7552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 7562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 7572a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 758868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) if (extensions.Contains("GL_EXT_frag_depth") || gfx::HasDesktopGLFeatures()) { 759868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) AddExtensionString("GL_EXT_frag_depth"); 760868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) feature_flags_.ext_frag_depth = true; 761868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) } 762868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 7630529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch if (extensions.Contains("GL_EXT_shader_texture_lod") || 7640529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch gfx::HasDesktopGLFeatures()) { 7650529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch AddExtensionString("GL_EXT_shader_texture_lod"); 7660529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch feature_flags_.ext_shader_texture_lod = true; 7670529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch } 7680529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch 7690529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch bool ui_gl_fence_works = is_es3 || extensions.Contains("GL_NV_fence") || 770424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) extensions.Contains("GL_ARB_sync") || 771424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) extensions.Contains("EGL_KHR_fence_sync"); 7720529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch UMA_HISTOGRAM_BOOLEAN("GPU.FenceSupport", ui_gl_fence_works); 773424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) 774424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) feature_flags_.map_buffer_range = 775424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) is_es3 || extensions.Contains("GL_ARB_map_buffer_range"); 776424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) 777424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) // Really it's part of core OpenGL 2.1 and up, but let's assume the 778424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) // extension is still advertised. 779424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) bool has_pixel_buffers = 780424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) is_es3 || extensions.Contains("GL_ARB_pixel_buffer_object"); 781424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) 782424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) // We will use either glMapBuffer() or glMapBufferRange() for async readbacks. 783424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) if (has_pixel_buffers && ui_gl_fence_works && 784424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) !workarounds_.disable_async_readpixels) { 785424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) feature_flags_.use_async_readpixels = true; 786424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) } 787424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) 7882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (is_es3 || extensions.Contains("GL_ARB_sampler_objects")) { 7892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) feature_flags_.enable_samplers = true; 7902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // TODO(dsinclair): Add AddExtensionString("GL_CHROMIUM_sampler_objects") 7912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // when available. 7922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 79358537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) 794d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) if ((is_es3 || extensions.Contains("GL_EXT_discard_framebuffer")) && 795d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) !workarounds_.disable_ext_discard_framebuffer) { 79658537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) // DiscardFramebufferEXT is automatically bound to InvalidateFramebuffer. 79758537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) AddExtensionString("GL_EXT_discard_framebuffer"); 7980f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) feature_flags_.ext_discard_framebuffer = true; 79958537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) } 8000529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch 8010529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch if (ui_gl_fence_works) { 8020529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch AddExtensionString("GL_CHROMIUM_sync_query"); 8030529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch feature_flags_.chromium_sync_query = true; 8040529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch } 8055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 8065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void FeatureInfo::AddExtensionString(const std::string& str) { 8085d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) size_t pos = extensions_.find(str); 8095d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) while (pos != std::string::npos && 8105d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) pos + str.length() < extensions_.length() && 8115d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) extensions_.substr(pos + str.length(), 1) != " ") { 8125d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // This extension name is a substring of another. 8135d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) pos = extensions_.find(str, pos + str.length()); 8145d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 8155d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (pos == std::string::npos) { 8165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) extensions_ += (extensions_.empty() ? "" : " ") + str; 8175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 8185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 8195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)FeatureInfo::~FeatureInfo() { 8215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 8225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 8235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace gles2 8245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace gpu 825