Gitiles
Code Review Sign In
gerrit-public.fairphone.software / platform / external / angle / d3f0f1ec8179603757b96a851f3b7d9d9152dfd8 / . / src / libGLESv2 / formatutils.cpp
blob: 0526af4b323aade9f678fe95e226e20ceccb384b [file] [log] [blame]
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1#include "precompiled.h"
2//
3// Copyright (c) 2013 The ANGLE Project Authors. All rights reserved.
4// Use of this source code is governed by a BSD-style license that can be
5// found in the LICENSE file.
6//
7
8// formatutils.cpp: Queries for GL image formats.
9
10#include "libGLESv2/formatutils.h"
11#include "libGLESv2/Context.h"
shannonwoods@chromium.orga2ecfcc2013-05-30 00:11:59 +0000[diff] [blame]12#include "common/mathutil.h"
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]13#include "libGLESv2/renderer/Renderer.h"
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]14#include "libGLESv2/renderer/imageformats.h"
15#include "libGLESv2/renderer/copyimage.h"
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]16
17namespace gl
18{
19
20// ES2 requires that format is equal to internal format at all glTex*Image2D entry points and the implementation
21// can decide the true, sized, internal format. The ES2FormatMap determines the internal format for all valid
22// format and type combinations.
23
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]24struct FormatTypeInfo
25{
26 GLint mInternalFormat;
27 ColorWriteFunction mColorWriteFunction;
28
29 FormatTypeInfo(GLint internalFormat, ColorWriteFunction writeFunc)
30 : mInternalFormat(internalFormat), mColorWriteFunction(writeFunc)
31 { }
32};
33
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]34typedef std::pair<GLenum, GLenum> FormatTypePair;
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]35typedef std::pair<FormatTypePair, FormatTypeInfo> FormatPair;
36typedef std::map<FormatTypePair, FormatTypeInfo> FormatMap;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]37
38// A helper function to insert data into the D3D11LoadFunctionMap with fewer characters.
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]39static inline void InsertFormatMapping(FormatMap *map, GLenum format, GLenum type, GLint internalFormat, ColorWriteFunction writeFunc)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]40{
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]41 map->insert(FormatPair(FormatTypePair(format, type), FormatTypeInfo(internalFormat, writeFunc)));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]42}
43
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]44FormatMap BuildES2FormatMap()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]45{
46 FormatMap map;
47
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]48 using namespace rx;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]49
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]50 // | Format | Type | Internal format | Color write function |
51 InsertFormatMapping(&map, GL_ALPHA, GL_UNSIGNED_BYTE, GL_ALPHA8_EXT, WriteColor<A8, GLfloat> );
52 InsertFormatMapping(&map, GL_ALPHA, GL_FLOAT, GL_ALPHA32F_EXT, WriteColor<A32F, GLfloat> );
53 InsertFormatMapping(&map, GL_ALPHA, GL_HALF_FLOAT_OES, GL_ALPHA16F_EXT, WriteColor<A16F, GLfloat> );
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]54
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]55 InsertFormatMapping(&map, GL_LUMINANCE, GL_UNSIGNED_BYTE, GL_LUMINANCE8_EXT, WriteColor<L8, GLfloat> );
56 InsertFormatMapping(&map, GL_LUMINANCE, GL_FLOAT, GL_LUMINANCE32F_EXT, WriteColor<L32F, GLfloat> );
57 InsertFormatMapping(&map, GL_LUMINANCE, GL_HALF_FLOAT_OES, GL_LUMINANCE16F_EXT, WriteColor<L16F, GLfloat> );
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]58
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]59 InsertFormatMapping(&map, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, GL_LUMINANCE8_ALPHA8_EXT, WriteColor<L8A8, GLfloat> );
60 InsertFormatMapping(&map, GL_LUMINANCE_ALPHA, GL_FLOAT, GL_LUMINANCE_ALPHA32F_EXT, WriteColor<L32A32F, GLfloat> );
61 InsertFormatMapping(&map, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT_OES, GL_LUMINANCE_ALPHA16F_EXT, WriteColor<L16A16F, GLfloat> );
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]62
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]63 InsertFormatMapping(&map, GL_RGB, GL_UNSIGNED_BYTE, GL_RGB8_OES, WriteColor<R8G8B8, GLfloat> );
64 InsertFormatMapping(&map, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, GL_RGB565, WriteColor<R5G6B5, GLfloat> );
65 InsertFormatMapping(&map, GL_RGB, GL_FLOAT, GL_RGB32F_EXT, WriteColor<R32G32B32F, GLfloat> );
66 InsertFormatMapping(&map, GL_RGB, GL_HALF_FLOAT_OES, GL_RGB16F_EXT, WriteColor<R16G16B16F, GLfloat> );
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]67
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]68 InsertFormatMapping(&map, GL_RGBA, GL_UNSIGNED_BYTE, GL_RGBA8_OES, WriteColor<R8G8B8A8, GLfloat> );
69 InsertFormatMapping(&map, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, GL_RGBA4, WriteColor<R4G4B4A4, GLfloat> );
70 InsertFormatMapping(&map, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, GL_RGB5_A1, WriteColor<R5G5B5A1, GLfloat> );
71 InsertFormatMapping(&map, GL_RGBA, GL_FLOAT, GL_RGBA32F_EXT, WriteColor<R32G32B32A32F, GLfloat>);
72 InsertFormatMapping(&map, GL_RGBA, GL_HALF_FLOAT_OES, GL_RGBA16F_EXT, WriteColor<R16G16B16A16F, GLfloat>);
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]73
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]74 InsertFormatMapping(&map, GL_BGRA_EXT, GL_UNSIGNED_BYTE, GL_BGRA8_EXT, WriteColor<B8G8R8A8, GLfloat> );
75 InsertFormatMapping(&map, GL_BGRA_EXT, GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT, GL_BGRA4_ANGLEX, WriteColor<B4G4R4A4, GLfloat> );
76 InsertFormatMapping(&map, GL_BGRA_EXT, GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT, GL_BGR5_A1_ANGLEX, WriteColor<B5G5R5A1, GLfloat> );
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]77
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]78 InsertFormatMapping(&map, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, NULL );
79 InsertFormatMapping(&map, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, NULL );
80 InsertFormatMapping(&map, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, GL_UNSIGNED_BYTE, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, NULL );
81 InsertFormatMapping(&map, GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, GL_UNSIGNED_BYTE, GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, NULL );
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]82
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]83 InsertFormatMapping(&map, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, GL_DEPTH_COMPONENT16, NULL );
84 InsertFormatMapping(&map, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, GL_DEPTH_COMPONENT32_OES, NULL );
85
86 InsertFormatMapping(&map, GL_DEPTH_STENCIL_OES, GL_UNSIGNED_INT_24_8_OES, GL_DEPTH24_STENCIL8_OES, NULL );
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]87
88 return map;
89}
90
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]91FormatMap BuildES3FormatMap()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]92{
93 FormatMap map;
94
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]95 using namespace rx;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]96
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]97 // | Format | Type | Internal format | Color write function |
98 InsertFormatMapping(&map, GL_RGBA, GL_UNSIGNED_BYTE, GL_RGBA8, WriteColor<R8G8B8A8, GLfloat> );
99 InsertFormatMapping(&map, GL_RGBA, GL_BYTE, GL_RGBA8_SNORM, WriteColor<R8G8B8A8S, GLfloat> );
100 InsertFormatMapping(&map, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, GL_RGBA4, WriteColor<R4G4B4A4, GLfloat> );
101 InsertFormatMapping(&map, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, GL_RGB5_A1, WriteColor<R5G5B5A1, GLfloat> );
102 InsertFormatMapping(&map, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, GL_RGB10_A2, WriteColor<R10G10B10A2, GLfloat> );
103 InsertFormatMapping(&map, GL_RGBA, GL_FLOAT, GL_RGBA32F, WriteColor<R32G32B32A32F, GLfloat>);
104 InsertFormatMapping(&map, GL_RGBA, GL_HALF_FLOAT, GL_RGBA16F, WriteColor<R16G16B16A16F, GLfloat>);
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]105
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]106 InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE, GL_RGBA8UI, WriteColor<R8G8B8A8, GLuint> );
107 InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_BYTE, GL_RGBA8I, WriteColor<R8G8B8A8S, GLint> );
108 InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_UNSIGNED_SHORT, GL_RGBA16UI, WriteColor<R16G16B16A16, GLuint> );
109 InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_SHORT, GL_RGBA16I, WriteColor<R16G16B16A16S, GLint> );
110 InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_UNSIGNED_INT, GL_RGBA32UI, WriteColor<R32G32B32A32, GLuint> );
111 InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_INT, GL_RGBA32I, WriteColor<R32G32B32A32S, GLint> );
Jamie Madill18a44702013-09-09 16:24:04 -0400[diff] [blame]112 InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_UNSIGNED_INT_2_10_10_10_REV, GL_RGB10_A2UI, WriteColor<R10G10B10A2, GLuint> );
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]113
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]114 InsertFormatMapping(&map, GL_RGB, GL_UNSIGNED_BYTE, GL_RGB8, WriteColor<R8G8B8, GLfloat> );
115 InsertFormatMapping(&map, GL_RGB, GL_BYTE, GL_RGB8_SNORM, WriteColor<R8G8B8S, GLfloat> );
116 InsertFormatMapping(&map, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, GL_RGB565, WriteColor<R5G6B5, GLfloat> );
117 InsertFormatMapping(&map, GL_RGB, GL_UNSIGNED_INT_10F_11F_11F_REV, GL_R11F_G11F_B10F, WriteColor<R11G11B10F, GLfloat> );
118 InsertFormatMapping(&map, GL_RGB, GL_UNSIGNED_INT_5_9_9_9_REV, GL_RGB9_E5, WriteColor<R9G9B9E5, GLfloat> );
119 InsertFormatMapping(&map, GL_RGB, GL_FLOAT, GL_RGB32F, WriteColor<R32G32B32F, GLfloat> );
120 InsertFormatMapping(&map, GL_RGB, GL_HALF_FLOAT, GL_RGB16F, WriteColor<R16G16B16F, GLfloat> );
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]121
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]122 InsertFormatMapping(&map, GL_RGB_INTEGER, GL_UNSIGNED_BYTE, GL_RGB8UI, WriteColor<R8G8B8, GLuint> );
123 InsertFormatMapping(&map, GL_RGB_INTEGER, GL_BYTE, GL_RGB8I, WriteColor<R8G8B8S, GLint> );
124 InsertFormatMapping(&map, GL_RGB_INTEGER, GL_UNSIGNED_SHORT, GL_RGB16UI, WriteColor<R16G16B16, GLuint> );
125 InsertFormatMapping(&map, GL_RGB_INTEGER, GL_SHORT, GL_RGB16I, WriteColor<R16G16B16S, GLint> );
126 InsertFormatMapping(&map, GL_RGB_INTEGER, GL_UNSIGNED_INT, GL_RGB32UI, WriteColor<R32G32B32, GLuint> );
127 InsertFormatMapping(&map, GL_RGB_INTEGER, GL_INT, GL_RGB32I, WriteColor<R32G32B32S, GLint> );
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]128
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]129 InsertFormatMapping(&map, GL_RG, GL_UNSIGNED_BYTE, GL_RG8, WriteColor<R8G8, GLfloat> );
130 InsertFormatMapping(&map, GL_RG, GL_BYTE, GL_RG8_SNORM, WriteColor<R8G8S, GLfloat> );
131 InsertFormatMapping(&map, GL_RG, GL_FLOAT, GL_RG32F, WriteColor<R32G32F, GLfloat> );
132 InsertFormatMapping(&map, GL_RG, GL_HALF_FLOAT, GL_RG16F, WriteColor<R16G16F, GLfloat> );
133
134 InsertFormatMapping(&map, GL_RG_INTEGER, GL_UNSIGNED_BYTE, GL_RG8UI, WriteColor<R8G8, GLuint> );
135 InsertFormatMapping(&map, GL_RG_INTEGER, GL_BYTE, GL_RG8I, WriteColor<R8G8S, GLint> );
136 InsertFormatMapping(&map, GL_RG_INTEGER, GL_UNSIGNED_SHORT, GL_RG16UI, WriteColor<R16G16, GLuint> );
137 InsertFormatMapping(&map, GL_RG_INTEGER, GL_SHORT, GL_RG16I, WriteColor<R16G16S, GLint> );
138 InsertFormatMapping(&map, GL_RG_INTEGER, GL_UNSIGNED_INT, GL_RG32UI, WriteColor<R32G32, GLuint> );
139 InsertFormatMapping(&map, GL_RG_INTEGER, GL_INT, GL_RG32I, WriteColor<R32G32S, GLint> );
140
141 InsertFormatMapping(&map, GL_RED, GL_UNSIGNED_BYTE, GL_R8, WriteColor<R8, GLfloat> );
142 InsertFormatMapping(&map, GL_RED, GL_BYTE, GL_R8_SNORM, WriteColor<R8S, GLfloat> );
143 InsertFormatMapping(&map, GL_RED, GL_FLOAT, GL_R32F, WriteColor<R32F, GLfloat> );
144 InsertFormatMapping(&map, GL_RED, GL_HALF_FLOAT, GL_R16F, WriteColor<R16F, GLfloat> );
145
146 InsertFormatMapping(&map, GL_RED_INTEGER, GL_UNSIGNED_BYTE, GL_R8UI, WriteColor<R8, GLuint> );
147 InsertFormatMapping(&map, GL_RED_INTEGER, GL_BYTE, GL_R8I, WriteColor<R8S, GLint> );
148 InsertFormatMapping(&map, GL_RED_INTEGER, GL_UNSIGNED_SHORT, GL_R16UI, WriteColor<R16, GLuint> );
149 InsertFormatMapping(&map, GL_RED_INTEGER, GL_SHORT, GL_R16I, WriteColor<R16S, GLint> );
150 InsertFormatMapping(&map, GL_RED_INTEGER, GL_UNSIGNED_INT, GL_R32UI, WriteColor<R32, GLuint> );
151 InsertFormatMapping(&map, GL_RED_INTEGER, GL_INT, GL_R32I, WriteColor<R32S, GLint> );
152
153 InsertFormatMapping(&map, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, GL_LUMINANCE8_ALPHA8_EXT, WriteColor<L8A8, GLfloat> );
154 InsertFormatMapping(&map, GL_LUMINANCE, GL_UNSIGNED_BYTE, GL_LUMINANCE8_EXT, WriteColor<L8, GLfloat> );
155 InsertFormatMapping(&map, GL_ALPHA, GL_UNSIGNED_BYTE, GL_ALPHA8_EXT, WriteColor<A8, GLfloat> );
156 InsertFormatMapping(&map, GL_LUMINANCE_ALPHA, GL_FLOAT, GL_LUMINANCE_ALPHA32F_EXT, WriteColor<L32A32F, GLfloat> );
157 InsertFormatMapping(&map, GL_LUMINANCE, GL_FLOAT, GL_LUMINANCE32F_EXT, WriteColor<L32F, GLfloat> );
158 InsertFormatMapping(&map, GL_ALPHA, GL_FLOAT, GL_ALPHA32F_EXT, WriteColor<A32F, GLfloat> );
159 InsertFormatMapping(&map, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT, GL_LUMINANCE_ALPHA16F_EXT, WriteColor<L16A16F, GLfloat> );
160 InsertFormatMapping(&map, GL_LUMINANCE, GL_HALF_FLOAT, GL_LUMINANCE16F_EXT, WriteColor<L16F, GLfloat> );
161 InsertFormatMapping(&map, GL_ALPHA, GL_HALF_FLOAT, GL_ALPHA16F_EXT, WriteColor<A16F, GLfloat> );
162
163 InsertFormatMapping(&map, GL_BGRA_EXT, GL_UNSIGNED_BYTE, GL_BGRA8_EXT, WriteColor<B8G8R8A8, GLfloat> );
164 InsertFormatMapping(&map, GL_BGRA_EXT, GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT, GL_BGRA4_ANGLEX, WriteColor<B4G4R4A4, GLfloat> );
165 InsertFormatMapping(&map, GL_BGRA_EXT, GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT, GL_BGR5_A1_ANGLEX, WriteColor<B5G5R5A1, GLfloat> );
166
167 InsertFormatMapping(&map, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, GL_DEPTH_COMPONENT16, NULL );
168 InsertFormatMapping(&map, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, GL_DEPTH_COMPONENT24, NULL );
169 InsertFormatMapping(&map, GL_DEPTH_COMPONENT, GL_FLOAT, GL_DEPTH_COMPONENT32F, NULL );
170
171 InsertFormatMapping(&map, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, GL_DEPTH24_STENCIL8, NULL );
172 InsertFormatMapping(&map, GL_DEPTH_STENCIL, GL_FLOAT_32_UNSIGNED_INT_24_8_REV, GL_DEPTH32F_STENCIL8, NULL );
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]173
174 return map;
175}
176
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]177static const FormatMap &GetFormatMap(GLuint clientVersion)
178{
179 if (clientVersion == 2)
180 {
181 static const FormatMap formats = BuildES2FormatMap();
182 return formats;
183 }
184 else if (clientVersion == 3)
185 {
186 static const FormatMap formats = BuildES3FormatMap();
187 return formats;
188 }
189 else
190 {
191 UNREACHABLE();
192 static FormatMap emptyMap;
193 return emptyMap;
194 }
195}
196
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]197struct FormatInfo
198{
199 GLint mInternalformat;
200 GLenum mFormat;
201 GLenum mType;
202
203 FormatInfo(GLint internalformat, GLenum format, GLenum type)
204 : mInternalformat(internalformat), mFormat(format), mType(type) { }
205
206 bool operator<(const FormatInfo& other) const
207 {
208 return memcmp(this, &other, sizeof(FormatInfo)) < 0;
209 }
210};
211
212// ES3 has a specific set of permutations of internal formats, formats and types which are acceptable.
213typedef std::set<FormatInfo> ES3FormatSet;
214
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]215ES3FormatSet BuildES3FormatSet()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]216{
217 ES3FormatSet set;
218
219 // Format combinations from ES 3.0.1 spec, table 3.2
220
221 // | Internal format | Format | Type |
222 // | | | |
223 set.insert(FormatInfo(GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE ));
224 set.insert(FormatInfo(GL_RGB5_A1, GL_RGBA, GL_UNSIGNED_BYTE ));
225 set.insert(FormatInfo(GL_RGBA4, GL_RGBA, GL_UNSIGNED_BYTE ));
226 set.insert(FormatInfo(GL_SRGB8_ALPHA8, GL_RGBA, GL_UNSIGNED_BYTE ));
227 set.insert(FormatInfo(GL_RGBA8_SNORM, GL_RGBA, GL_BYTE ));
228 set.insert(FormatInfo(GL_RGBA4, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4 ));
229 set.insert(FormatInfo(GL_RGB10_A2, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV ));
230 set.insert(FormatInfo(GL_RGB5_A1, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV ));
shannonwoods@chromium.orgd03f8972013-05-30 00:17:07 +0000[diff] [blame]231 set.insert(FormatInfo(GL_RGB5_A1, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1 ));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]232 set.insert(FormatInfo(GL_RGBA16F, GL_RGBA, GL_HALF_FLOAT ));
233 set.insert(FormatInfo(GL_RGBA32F, GL_RGBA, GL_FLOAT ));
234 set.insert(FormatInfo(GL_RGBA16F, GL_RGBA, GL_FLOAT ));
235 set.insert(FormatInfo(GL_RGBA8UI, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE ));
236 set.insert(FormatInfo(GL_RGBA8I, GL_RGBA_INTEGER, GL_BYTE ));
237 set.insert(FormatInfo(GL_RGBA16UI, GL_RGBA_INTEGER, GL_UNSIGNED_SHORT ));
238 set.insert(FormatInfo(GL_RGBA16I, GL_RGBA_INTEGER, GL_SHORT ));
239 set.insert(FormatInfo(GL_RGBA32UI, GL_RGBA_INTEGER, GL_UNSIGNED_INT ));
240 set.insert(FormatInfo(GL_RGBA32I, GL_RGBA_INTEGER, GL_INT ));
241 set.insert(FormatInfo(GL_RGB10_A2UI, GL_RGBA_INTEGER, GL_UNSIGNED_INT_2_10_10_10_REV ));
242 set.insert(FormatInfo(GL_RGB8, GL_RGB, GL_UNSIGNED_BYTE ));
243 set.insert(FormatInfo(GL_RGB565, GL_RGB, GL_UNSIGNED_BYTE ));
244 set.insert(FormatInfo(GL_SRGB8, GL_RGB, GL_UNSIGNED_BYTE ));
245 set.insert(FormatInfo(GL_RGB8_SNORM, GL_RGB, GL_BYTE ));
246 set.insert(FormatInfo(GL_RGB565, GL_RGB, GL_UNSIGNED_SHORT_5_6_5 ));
247 set.insert(FormatInfo(GL_R11F_G11F_B10F, GL_RGB, GL_UNSIGNED_INT_10F_11F_11F_REV ));
248 set.insert(FormatInfo(GL_RGB9_E5, GL_RGB, GL_UNSIGNED_INT_5_9_9_9_REV ));
249 set.insert(FormatInfo(GL_RGB16F, GL_RGB, GL_HALF_FLOAT ));
250 set.insert(FormatInfo(GL_R11F_G11F_B10F, GL_RGB, GL_HALF_FLOAT ));
251 set.insert(FormatInfo(GL_RGB9_E5, GL_RGB, GL_HALF_FLOAT ));
252 set.insert(FormatInfo(GL_RGB32F, GL_RGB, GL_FLOAT ));
253 set.insert(FormatInfo(GL_RGB16F, GL_RGB, GL_FLOAT ));
254 set.insert(FormatInfo(GL_R11F_G11F_B10F, GL_RGB, GL_FLOAT ));
255 set.insert(FormatInfo(GL_RGB9_E5, GL_RGB, GL_FLOAT ));
256 set.insert(FormatInfo(GL_RGB8UI, GL_RGB_INTEGER, GL_UNSIGNED_BYTE ));
257 set.insert(FormatInfo(GL_RGB8I, GL_RGB_INTEGER, GL_BYTE ));
258 set.insert(FormatInfo(GL_RGB16UI, GL_RGB_INTEGER, GL_UNSIGNED_SHORT ));
259 set.insert(FormatInfo(GL_RGB16I, GL_RGB_INTEGER, GL_SHORT ));
260 set.insert(FormatInfo(GL_RGB32UI, GL_RGB_INTEGER, GL_UNSIGNED_INT ));
261 set.insert(FormatInfo(GL_RGB32I, GL_RGB_INTEGER, GL_INT ));
262 set.insert(FormatInfo(GL_RG8, GL_RG, GL_UNSIGNED_BYTE ));
263 set.insert(FormatInfo(GL_RG8_SNORM, GL_RG, GL_BYTE ));
264 set.insert(FormatInfo(GL_RG16F, GL_RG, GL_HALF_FLOAT ));
265 set.insert(FormatInfo(GL_RG32F, GL_RG, GL_FLOAT ));
266 set.insert(FormatInfo(GL_RG16F, GL_RG, GL_FLOAT ));
267 set.insert(FormatInfo(GL_RG8UI, GL_RG_INTEGER, GL_UNSIGNED_BYTE ));
268 set.insert(FormatInfo(GL_RG8I, GL_RG_INTEGER, GL_BYTE ));
269 set.insert(FormatInfo(GL_RG16UI, GL_RG_INTEGER, GL_UNSIGNED_SHORT ));
270 set.insert(FormatInfo(GL_RG16I, GL_RG_INTEGER, GL_SHORT ));
271 set.insert(FormatInfo(GL_RG32UI, GL_RG_INTEGER, GL_UNSIGNED_INT ));
272 set.insert(FormatInfo(GL_RG32I, GL_RG_INTEGER, GL_INT ));
273 set.insert(FormatInfo(GL_R8, GL_RED, GL_UNSIGNED_BYTE ));
274 set.insert(FormatInfo(GL_R8_SNORM, GL_RED, GL_BYTE ));
275 set.insert(FormatInfo(GL_R16F, GL_RED, GL_HALF_FLOAT ));
276 set.insert(FormatInfo(GL_R32F, GL_RED, GL_FLOAT ));
277 set.insert(FormatInfo(GL_R16F, GL_RED, GL_FLOAT ));
278 set.insert(FormatInfo(GL_R8UI, GL_RED_INTEGER, GL_UNSIGNED_BYTE ));
279 set.insert(FormatInfo(GL_R8I, GL_RED_INTEGER, GL_BYTE ));
280 set.insert(FormatInfo(GL_R16UI, GL_RED_INTEGER, GL_UNSIGNED_SHORT ));
281 set.insert(FormatInfo(GL_R16I, GL_RED_INTEGER, GL_SHORT ));
282 set.insert(FormatInfo(GL_R32UI, GL_RED_INTEGER, GL_UNSIGNED_INT ));
283 set.insert(FormatInfo(GL_R32I, GL_RED_INTEGER, GL_INT ));
284
285 // Unsized formats
286 set.insert(FormatInfo(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE ));
287 set.insert(FormatInfo(GL_RGBA, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4 ));
288 set.insert(FormatInfo(GL_RGBA, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1 ));
289 set.insert(FormatInfo(GL_RGB, GL_RGB, GL_UNSIGNED_BYTE ));
290 set.insert(FormatInfo(GL_RGB, GL_RGB, GL_UNSIGNED_SHORT_5_6_5 ));
291 set.insert(FormatInfo(GL_LUMINANCE_ALPHA, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE ));
292 set.insert(FormatInfo(GL_LUMINANCE, GL_LUMINANCE, GL_UNSIGNED_BYTE ));
293 set.insert(FormatInfo(GL_ALPHA, GL_ALPHA, GL_UNSIGNED_BYTE ));
294
295 // Depth stencil formats
296 set.insert(FormatInfo(GL_DEPTH_COMPONENT16, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT ));
297 set.insert(FormatInfo(GL_DEPTH_COMPONENT24, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT ));
298 set.insert(FormatInfo(GL_DEPTH_COMPONENT16, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT ));
299 set.insert(FormatInfo(GL_DEPTH_COMPONENT32F, GL_DEPTH_COMPONENT, GL_FLOAT ));
300 set.insert(FormatInfo(GL_DEPTH24_STENCIL8, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8 ));
301 set.insert(FormatInfo(GL_DEPTH32F_STENCIL8, GL_DEPTH_STENCIL, GL_FLOAT_32_UNSIGNED_INT_24_8_REV));
302
303 // From GL_OES_texture_float
304 set.insert(FormatInfo(GL_LUMINANCE_ALPHA, GL_LUMINANCE_ALPHA, GL_FLOAT ));
305 set.insert(FormatInfo(GL_LUMINANCE, GL_LUMINANCE, GL_FLOAT ));
306 set.insert(FormatInfo(GL_ALPHA, GL_ALPHA, GL_FLOAT ));
307
308 // From GL_OES_texture_half_float
309 set.insert(FormatInfo(GL_LUMINANCE_ALPHA, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT ));
310 set.insert(FormatInfo(GL_LUMINANCE, GL_LUMINANCE, GL_HALF_FLOAT ));
311 set.insert(FormatInfo(GL_ALPHA, GL_ALPHA, GL_HALF_FLOAT ));
312
313 // From GL_EXT_texture_storage
314 // | Internal format | Format | Type |
315 // | | | |
316 set.insert(FormatInfo(GL_ALPHA8_EXT, GL_ALPHA, GL_UNSIGNED_BYTE ));
317 set.insert(FormatInfo(GL_LUMINANCE8_EXT, GL_LUMINANCE, GL_UNSIGNED_BYTE ));
318 set.insert(FormatInfo(GL_LUMINANCE8_ALPHA8_EXT, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE ));
319 set.insert(FormatInfo(GL_ALPHA32F_EXT, GL_ALPHA, GL_FLOAT ));
320 set.insert(FormatInfo(GL_LUMINANCE32F_EXT, GL_LUMINANCE, GL_FLOAT ));
321 set.insert(FormatInfo(GL_LUMINANCE_ALPHA32F_EXT, GL_LUMINANCE_ALPHA, GL_FLOAT ));
322 set.insert(FormatInfo(GL_ALPHA16F_EXT, GL_ALPHA, GL_HALF_FLOAT ));
323 set.insert(FormatInfo(GL_LUMINANCE16F_EXT, GL_LUMINANCE, GL_HALF_FLOAT ));
324 set.insert(FormatInfo(GL_LUMINANCE_ALPHA16F_EXT, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT ));
325
326 set.insert(FormatInfo(GL_BGRA8_EXT, GL_BGRA_EXT, GL_UNSIGNED_BYTE ));
327 set.insert(FormatInfo(GL_BGRA4_ANGLEX, GL_BGRA_EXT, GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT));
328 set.insert(FormatInfo(GL_BGRA4_ANGLEX, GL_BGRA_EXT, GL_UNSIGNED_BYTE ));
329 set.insert(FormatInfo(GL_BGR5_A1_ANGLEX, GL_BGRA_EXT, GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT));
330 set.insert(FormatInfo(GL_BGR5_A1_ANGLEX, GL_BGRA_EXT, GL_UNSIGNED_BYTE ));
331
332 // From GL_ANGLE_depth_texture
333 set.insert(FormatInfo(GL_DEPTH_COMPONENT32_OES, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT_24_8_OES ));
334
335 // Compressed formats
336 // From ES 3.0.1 spec, table 3.16
337 // | Internal format | Format | Type |
338 // | | | |
339 set.insert(FormatInfo(GL_COMPRESSED_R11_EAC, GL_COMPRESSED_R11_EAC, GL_UNSIGNED_BYTE));
340 set.insert(FormatInfo(GL_COMPRESSED_R11_EAC, GL_COMPRESSED_R11_EAC, GL_UNSIGNED_BYTE));
341 set.insert(FormatInfo(GL_COMPRESSED_SIGNED_R11_EAC, GL_COMPRESSED_SIGNED_R11_EAC, GL_UNSIGNED_BYTE));
342 set.insert(FormatInfo(GL_COMPRESSED_RG11_EAC, GL_COMPRESSED_RG11_EAC, GL_UNSIGNED_BYTE));
343 set.insert(FormatInfo(GL_COMPRESSED_SIGNED_RG11_EAC, GL_COMPRESSED_SIGNED_RG11_EAC, GL_UNSIGNED_BYTE));
344 set.insert(FormatInfo(GL_COMPRESSED_RGB8_ETC2, GL_COMPRESSED_RGB8_ETC2, GL_UNSIGNED_BYTE));
345 set.insert(FormatInfo(GL_COMPRESSED_SRGB8_ETC2, GL_COMPRESSED_SRGB8_ETC2, GL_UNSIGNED_BYTE));
346 set.insert(FormatInfo(GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_UNSIGNED_BYTE));
347 set.insert(FormatInfo(GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_UNSIGNED_BYTE));
348 set.insert(FormatInfo(GL_COMPRESSED_RGBA8_ETC2_EAC, GL_COMPRESSED_RGBA8_ETC2_EAC, GL_UNSIGNED_BYTE));
349 set.insert(FormatInfo(GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC, GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC, GL_UNSIGNED_BYTE));
350
351
352 // From GL_EXT_texture_compression_dxt1
353 set.insert(FormatInfo(GL_COMPRESSED_RGB_S3TC_DXT1_EXT, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE));
354 set.insert(FormatInfo(GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE));
355
356 // From GL_ANGLE_texture_compression_dxt3
357 set.insert(FormatInfo(GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, GL_UNSIGNED_BYTE));
358
359 // From GL_ANGLE_texture_compression_dxt5
360 set.insert(FormatInfo(GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, GL_UNSIGNED_BYTE));
361
362 return set;
363}
364
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]365static const ES3FormatSet &GetES3FormatSet()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]366{
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]367 static const ES3FormatSet es3FormatSet = BuildES3FormatSet();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]368 return es3FormatSet;
369}
370
371// Map of sizes of input types
372struct TypeInfo
373{
374 GLuint mTypeBytes;
375 bool mSpecialInterpretation;
376
377 TypeInfo()
378 : mTypeBytes(0), mSpecialInterpretation(false) { }
379
380 TypeInfo(GLuint typeBytes, bool specialInterpretation)
381 : mTypeBytes(typeBytes), mSpecialInterpretation(specialInterpretation) { }
382
383 bool operator<(const TypeInfo& other) const
384 {
385 return memcmp(this, &other, sizeof(TypeInfo)) < 0;
386 }
387};
388
389typedef std::pair<GLenum, TypeInfo> TypeInfoPair;
390typedef std::map<GLenum, TypeInfo> TypeInfoMap;
391
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]392static TypeInfoMap BuildTypeInfoMap()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]393{
394 TypeInfoMap map;
395
396 map.insert(TypeInfoPair(GL_UNSIGNED_BYTE, TypeInfo( 1, false)));
397 map.insert(TypeInfoPair(GL_BYTE, TypeInfo( 1, false)));
398 map.insert(TypeInfoPair(GL_UNSIGNED_SHORT, TypeInfo( 2, false)));
399 map.insert(TypeInfoPair(GL_SHORT, TypeInfo( 2, false)));
400 map.insert(TypeInfoPair(GL_UNSIGNED_INT, TypeInfo( 4, false)));
401 map.insert(TypeInfoPair(GL_INT, TypeInfo( 4, false)));
402 map.insert(TypeInfoPair(GL_HALF_FLOAT, TypeInfo( 2, false)));
Jamie Madilla940ae42013-07-08 17:48:34 -0400[diff] [blame]403 map.insert(TypeInfoPair(GL_HALF_FLOAT_OES, TypeInfo( 2, false)));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]404 map.insert(TypeInfoPair(GL_FLOAT, TypeInfo( 4, false)));
405 map.insert(TypeInfoPair(GL_UNSIGNED_SHORT_5_6_5, TypeInfo( 2, true )));
406 map.insert(TypeInfoPair(GL_UNSIGNED_SHORT_4_4_4_4, TypeInfo( 2, true )));
407 map.insert(TypeInfoPair(GL_UNSIGNED_SHORT_5_5_5_1, TypeInfo( 2, true )));
408 map.insert(TypeInfoPair(GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT, TypeInfo( 2, true )));
409 map.insert(TypeInfoPair(GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT, TypeInfo( 2, true )));
410 map.insert(TypeInfoPair(GL_UNSIGNED_INT_2_10_10_10_REV, TypeInfo( 4, true )));
411 map.insert(TypeInfoPair(GL_UNSIGNED_INT_24_8, TypeInfo( 4, true )));
412 map.insert(TypeInfoPair(GL_UNSIGNED_INT_10F_11F_11F_REV, TypeInfo( 4, true )));
413 map.insert(TypeInfoPair(GL_UNSIGNED_INT_5_9_9_9_REV, TypeInfo( 4, true )));
414 map.insert(TypeInfoPair(GL_FLOAT_32_UNSIGNED_INT_24_8_REV, TypeInfo( 4, true )));
415 map.insert(TypeInfoPair(GL_UNSIGNED_INT_24_8_OES, TypeInfo( 4, true )));
416
417 return map;
418}
419
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]420static bool GetTypeInfo(GLenum type, TypeInfo *outTypeInfo)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]421{
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]422 static const TypeInfoMap infoMap = BuildTypeInfoMap();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]423 TypeInfoMap::const_iterator iter = infoMap.find(type);
424 if (iter != infoMap.end())
425 {
426 if (outTypeInfo)
427 {
428 *outTypeInfo = iter->second;
429 }
430 return true;
431 }
432 else
433 {
434 return false;
435 }
436}
437
438// Information about internal formats
439typedef bool ((Context::*ContextSupportCheckMemberFunction)(void) const);
440typedef bool (*ContextSupportCheckFunction)(const Context *context);
441
442typedef bool ((rx::Renderer::*RendererSupportCheckMemberFunction)(void) const);
443typedef bool (*ContextRendererSupportCheckFunction)(const Context *context, const rx::Renderer *renderer);
444
445template <ContextSupportCheckMemberFunction func>
446bool CheckSupport(const Context *context)
447{
448 return (context->*func)();
449}
450
451template <ContextSupportCheckMemberFunction contextFunc, RendererSupportCheckMemberFunction rendererFunc>
452bool CheckSupport(const Context *context, const rx::Renderer *renderer)
453{
454 if (context)
455 {
456 return (context->*contextFunc)();
457 }
458 else if (renderer)
459 {
460 return (renderer->*rendererFunc)();
461 }
462 else
463 {
464 UNREACHABLE();
465 return false;
466 }
467}
468
469template <typename objectType>
470bool AlwaysSupported(const objectType*)
471{
472 return true;
473}
474
475template <typename objectTypeA, typename objectTypeB>
476bool AlwaysSupported(const objectTypeA*, const objectTypeB*)
477{
478 return true;
479}
480
481template <typename objectType>
482bool NeverSupported(const objectType*)
483{
484 return false;
485}
486
487template <typename objectTypeA, typename objectTypeB>
488bool NeverSupported(const objectTypeA *, const objectTypeB *)
489{
490 return false;
491}
492
493template <typename objectType>
494bool UnimplementedSupport(const objectType*)
495{
496 UNIMPLEMENTED();
497 return false;
498}
499
500template <typename objectTypeA, typename objectTypeB>
501bool UnimplementedSupport(const objectTypeA*, const objectTypeB*)
502{
503 UNIMPLEMENTED();
504 return false;
505}
506
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]507struct InternalFormatInfo
508{
509 GLuint mRedBits;
510 GLuint mGreenBits;
511 GLuint mBlueBits;
512
513 GLuint mLuminanceBits;
514
515 GLuint mAlphaBits;
516 GLuint mSharedBits;
517
518 GLuint mDepthBits;
519 GLuint mStencilBits;
520
521 GLuint mPixelBits;
522
523 GLuint mComponentCount;
524
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]525 GLuint mCompressedBlockWidth;
526 GLuint mCompressedBlockHeight;
527
528 GLenum mFormat;
529 GLenum mType;
530
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]531 GLenum mComponentType;
532 GLenum mColorEncoding;
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]533
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]534 bool mIsCompressed;
shannonwoods@chromium.orge81ea502013-05-30 00:16:53 +0000[diff] [blame]535
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]536 ContextRendererSupportCheckFunction mIsColorRenderable;
537 ContextRendererSupportCheckFunction mIsDepthRenderable;
538 ContextRendererSupportCheckFunction mIsStencilRenderable;
539 ContextRendererSupportCheckFunction mIsTextureFilterable;
540
541 ContextSupportCheckFunction mSupportFunction;
542
543 InternalFormatInfo() : mRedBits(0), mGreenBits(0), mBlueBits(0), mLuminanceBits(0), mAlphaBits(0), mSharedBits(0), mDepthBits(0), mStencilBits(0),
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]544 mPixelBits(0), mComponentCount(0), mCompressedBlockWidth(0), mCompressedBlockHeight(0), mFormat(GL_NONE), mType(GL_NONE),
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]545 mComponentType(GL_NONE), mColorEncoding(GL_NONE), mIsCompressed(false), mIsColorRenderable(NeverSupported),
546 mIsDepthRenderable(NeverSupported), mIsStencilRenderable(NeverSupported), mIsTextureFilterable(NeverSupported),
547 mSupportFunction(NeverSupported)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]548 {
549 }
550
551 static InternalFormatInfo UnsizedFormat(GLenum format, ContextSupportCheckFunction supportFunction)
552 {
553 InternalFormatInfo formatInfo;
554 formatInfo.mFormat = format;
555 formatInfo.mSupportFunction = supportFunction;
Shannon Woods9e73b212013-07-08 10:32:19 -0400[diff] [blame]556
557 if (format == GL_RGB || format == GL_RGBA)
558 formatInfo.mIsColorRenderable = AlwaysSupported;
559
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]560 return formatInfo;
561 }
562
563 static InternalFormatInfo RGBAFormat(GLuint red, GLuint green, GLuint blue, GLuint alpha, GLuint shared,
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]564 GLenum format, GLenum type, GLenum componentType, bool srgb,
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]565 ContextRendererSupportCheckFunction colorRenderable,
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]566 ContextRendererSupportCheckFunction textureFilterable,
567 ContextSupportCheckFunction supportFunction)
568 {
569 InternalFormatInfo formatInfo;
570 formatInfo.mRedBits = red;
571 formatInfo.mGreenBits = green;
572 formatInfo.mBlueBits = blue;
573 formatInfo.mAlphaBits = alpha;
574 formatInfo.mSharedBits = shared;
575 formatInfo.mPixelBits = red + green + blue + alpha + shared;
576 formatInfo.mComponentCount = ((red > 0) ? 1 : 0) + ((green > 0) ? 1 : 0) + ((blue > 0) ? 1 : 0) + ((alpha > 0) ? 1 : 0);
577 formatInfo.mFormat = format;
578 formatInfo.mType = type;
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]579 formatInfo.mComponentType = componentType;
580 formatInfo.mColorEncoding = (srgb ? GL_SRGB : GL_LINEAR);
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]581 formatInfo.mIsColorRenderable = colorRenderable;
582 formatInfo.mIsTextureFilterable = textureFilterable;
583 formatInfo.mSupportFunction = supportFunction;
584 return formatInfo;
585 }
586
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]587 static InternalFormatInfo LUMAFormat(GLuint luminance, GLuint alpha, GLenum format, GLenum type, GLenum componentType,
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]588 ContextSupportCheckFunction supportFunction)
589 {
590 InternalFormatInfo formatInfo;
591 formatInfo.mLuminanceBits = luminance;
592 formatInfo.mAlphaBits = alpha;
593 formatInfo.mPixelBits = luminance + alpha;
594 formatInfo.mComponentCount = ((luminance > 0) ? 1 : 0) + ((alpha > 0) ? 1 : 0);
595 formatInfo.mFormat = format;
596 formatInfo.mType = type;
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]597 formatInfo.mComponentType = componentType;
598 formatInfo.mColorEncoding = GL_LINEAR;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]599 formatInfo.mIsTextureFilterable = AlwaysSupported;
600 formatInfo.mSupportFunction = supportFunction;
601 return formatInfo;
602 }
603
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]604 static InternalFormatInfo DepthStencilFormat(GLuint depth, GLuint stencil, GLenum format, GLenum type, GLenum componentType,
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]605 ContextRendererSupportCheckFunction depthRenderable,
606 ContextRendererSupportCheckFunction stencilRenderable,
607 ContextSupportCheckFunction supportFunction)
608 {
609 InternalFormatInfo formatInfo;
610 formatInfo.mDepthBits = depth;
611 formatInfo.mStencilBits = stencil;
612 formatInfo.mPixelBits = depth + stencil;
613 formatInfo.mComponentCount = ((depth > 0) ? 1 : 0) + ((stencil > 0) ? 1 : 0);
614 formatInfo.mFormat = format;
615 formatInfo.mType = type;
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]616 formatInfo.mComponentType = componentType;
617 formatInfo.mColorEncoding = GL_LINEAR;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]618 formatInfo.mIsDepthRenderable = depthRenderable;
619 formatInfo.mIsStencilRenderable = stencilRenderable;
Nicolas Capens08be89d2013-07-16 16:17:31 -0400[diff] [blame]620 formatInfo.mIsTextureFilterable = AlwaysSupported;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]621 formatInfo.mSupportFunction = supportFunction;
622 return formatInfo;
623 }
624
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]625 static InternalFormatInfo CompressedFormat(GLuint compressedBlockWidth, GLuint compressedBlockHeight, GLuint compressedBlockSize,
626 GLuint componentCount, GLenum format, GLenum type, bool srgb,
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]627 ContextSupportCheckFunction supportFunction)
628 {
629 InternalFormatInfo formatInfo;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]630 formatInfo.mCompressedBlockWidth = compressedBlockWidth;
631 formatInfo.mCompressedBlockHeight = compressedBlockHeight;
632 formatInfo.mPixelBits = compressedBlockSize;
633 formatInfo.mComponentCount = componentCount;
634 formatInfo.mFormat = format;
635 formatInfo.mType = type;
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]636 formatInfo.mComponentType = GL_UNSIGNED_NORMALIZED;
637 formatInfo.mColorEncoding = (srgb ? GL_SRGB : GL_LINEAR);
638 formatInfo.mIsCompressed = true;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]639 formatInfo.mIsTextureFilterable = AlwaysSupported;
640 formatInfo.mSupportFunction = supportFunction;
641 return formatInfo;
642 }
643};
644
645typedef std::pair<GLuint, InternalFormatInfo> InternalFormatInfoPair;
646typedef std::map<GLuint, InternalFormatInfo> InternalFormatInfoMap;
647
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]648static InternalFormatInfoMap BuildES3InternalFormatInfoMap()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]649{
650 InternalFormatInfoMap map;
651
652 // From ES 3.0.1 spec, table 3.12
653 map.insert(InternalFormatInfoPair(GL_NONE, InternalFormatInfo()));
654
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]655 // | Internal format | | R | G | B | A |S | Format | Type | Component type | SRGB | Color | Texture | Supported |
656 // | | | | | | | | | | | | renderable | filterable | |
657 map.insert(InternalFormatInfoPair(GL_R8, InternalFormatInfo::RGBAFormat( 8, 0, 0, 0, 0, GL_RED, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
658 map.insert(InternalFormatInfoPair(GL_R8_SNORM, InternalFormatInfo::RGBAFormat( 8, 0, 0, 0, 0, GL_RED, GL_BYTE, GL_SIGNED_NORMALIZED, false, NeverSupported, AlwaysSupported, AlwaysSupported )));
659 map.insert(InternalFormatInfoPair(GL_RG8, InternalFormatInfo::RGBAFormat( 8, 8, 0, 0, 0, GL_RG, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
660 map.insert(InternalFormatInfoPair(GL_RG8_SNORM, InternalFormatInfo::RGBAFormat( 8, 8, 0, 0, 0, GL_RG, GL_BYTE, GL_SIGNED_NORMALIZED, false, NeverSupported, AlwaysSupported, AlwaysSupported )));
661 map.insert(InternalFormatInfoPair(GL_RGB8, InternalFormatInfo::RGBAFormat( 8, 8, 8, 0, 0, GL_RGB, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
662 map.insert(InternalFormatInfoPair(GL_RGB8_SNORM, InternalFormatInfo::RGBAFormat( 8, 8, 8, 0, 0, GL_RGB, GL_BYTE, GL_SIGNED_NORMALIZED, false, NeverSupported, AlwaysSupported, AlwaysSupported )));
Jamie Madill1d855fe2013-09-09 16:24:05 -0400[diff] [blame]663 map.insert(InternalFormatInfoPair(GL_RGB565, InternalFormatInfo::RGBAFormat( 5, 6, 5, 0, 0, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]664 map.insert(InternalFormatInfoPair(GL_RGBA4, InternalFormatInfo::RGBAFormat( 4, 4, 4, 4, 0, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
665 map.insert(InternalFormatInfoPair(GL_RGB5_A1, InternalFormatInfo::RGBAFormat( 5, 5, 5, 1, 0, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
666 map.insert(InternalFormatInfoPair(GL_RGBA8, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
667 map.insert(InternalFormatInfoPair(GL_RGBA8_SNORM, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA, GL_BYTE, GL_SIGNED_NORMALIZED, false, NeverSupported, AlwaysSupported, AlwaysSupported )));
668 map.insert(InternalFormatInfoPair(GL_RGB10_A2, InternalFormatInfo::RGBAFormat(10, 10, 10, 2, 0, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
Jamie Madill18a44702013-09-09 16:24:04 -0400[diff] [blame]669 map.insert(InternalFormatInfoPair(GL_RGB10_A2UI, InternalFormatInfo::RGBAFormat(10, 10, 10, 2, 0, GL_RGBA_INTEGER, GL_UNSIGNED_INT_2_10_10_10_REV, GL_UNSIGNED_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]670 map.insert(InternalFormatInfoPair(GL_SRGB8, InternalFormatInfo::RGBAFormat( 8, 8, 8, 0, 0, GL_RGB, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, true, NeverSupported, AlwaysSupported, AlwaysSupported )));
671 map.insert(InternalFormatInfoPair(GL_SRGB8_ALPHA8, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, true, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
672 map.insert(InternalFormatInfoPair(GL_R11F_G11F_B10F, InternalFormatInfo::RGBAFormat(11, 11, 10, 0, 0, GL_RGB, GL_UNSIGNED_INT_10F_11F_11F_REV, GL_FLOAT, false, NeverSupported, AlwaysSupported, AlwaysSupported )));
673 map.insert(InternalFormatInfoPair(GL_RGB9_E5, InternalFormatInfo::RGBAFormat( 9, 9, 9, 0, 5, GL_RGB, GL_UNSIGNED_INT_5_9_9_9_REV, GL_FLOAT, false, NeverSupported, AlwaysSupported, AlwaysSupported )));
674 map.insert(InternalFormatInfoPair(GL_R8I, InternalFormatInfo::RGBAFormat( 8, 0, 0, 0, 0, GL_RED_INTEGER, GL_BYTE, GL_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
675 map.insert(InternalFormatInfoPair(GL_R8UI, InternalFormatInfo::RGBAFormat( 8, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
676 map.insert(InternalFormatInfoPair(GL_R16I, InternalFormatInfo::RGBAFormat(16, 0, 0, 0, 0, GL_RED_INTEGER, GL_SHORT, GL_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
677 map.insert(InternalFormatInfoPair(GL_R16UI, InternalFormatInfo::RGBAFormat(16, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
678 map.insert(InternalFormatInfoPair(GL_R32I, InternalFormatInfo::RGBAFormat(32, 0, 0, 0, 0, GL_RED_INTEGER, GL_INT, GL_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
679 map.insert(InternalFormatInfoPair(GL_R32UI, InternalFormatInfo::RGBAFormat(32, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
680 map.insert(InternalFormatInfoPair(GL_RG8I, InternalFormatInfo::RGBAFormat( 8, 8, 0, 0, 0, GL_RG_INTEGER, GL_BYTE, GL_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
681 map.insert(InternalFormatInfoPair(GL_RG8UI, InternalFormatInfo::RGBAFormat( 8, 8, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
682 map.insert(InternalFormatInfoPair(GL_RG16I, InternalFormatInfo::RGBAFormat(16, 16, 0, 0, 0, GL_RG_INTEGER, GL_SHORT, GL_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
683 map.insert(InternalFormatInfoPair(GL_RG16UI, InternalFormatInfo::RGBAFormat(16, 16, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
684 map.insert(InternalFormatInfoPair(GL_RG32I, InternalFormatInfo::RGBAFormat(32, 32, 0, 0, 0, GL_RG_INTEGER, GL_INT, GL_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
685 map.insert(InternalFormatInfoPair(GL_RG32UI, InternalFormatInfo::RGBAFormat(32, 32, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
686 map.insert(InternalFormatInfoPair(GL_RGB8I, InternalFormatInfo::RGBAFormat( 8, 8, 8, 0, 0, GL_RGB_INTEGER, GL_BYTE, GL_INT, false, NeverSupported, NeverSupported, AlwaysSupported )));
687 map.insert(InternalFormatInfoPair(GL_RGB8UI, InternalFormatInfo::RGBAFormat( 8, 8, 8, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, NeverSupported, NeverSupported, AlwaysSupported )));
688 map.insert(InternalFormatInfoPair(GL_RGB16I, InternalFormatInfo::RGBAFormat(16, 16, 16, 0, 0, GL_RGB_INTEGER, GL_SHORT, GL_INT, false, NeverSupported, NeverSupported, AlwaysSupported )));
689 map.insert(InternalFormatInfoPair(GL_RGB16UI, InternalFormatInfo::RGBAFormat(16, 16, 16, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, NeverSupported, NeverSupported, AlwaysSupported )));
690 map.insert(InternalFormatInfoPair(GL_RGB32I, InternalFormatInfo::RGBAFormat(32, 32, 32, 0, 0, GL_RGB_INTEGER, GL_INT, GL_INT, false, NeverSupported, NeverSupported, AlwaysSupported )));
691 map.insert(InternalFormatInfoPair(GL_RGB32UI, InternalFormatInfo::RGBAFormat(32, 32, 32, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, NeverSupported, NeverSupported, AlwaysSupported )));
692 map.insert(InternalFormatInfoPair(GL_RGBA8I, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA_INTEGER, GL_BYTE, GL_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
693 map.insert(InternalFormatInfoPair(GL_RGBA8UI, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
694 map.insert(InternalFormatInfoPair(GL_RGBA16I, InternalFormatInfo::RGBAFormat(16, 16, 16, 16, 0, GL_RGBA_INTEGER, GL_SHORT, GL_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
695 map.insert(InternalFormatInfoPair(GL_RGBA16UI, InternalFormatInfo::RGBAFormat(16, 16, 16, 16, 0, GL_RGBA_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
696 map.insert(InternalFormatInfoPair(GL_RGBA32I, InternalFormatInfo::RGBAFormat(32, 32, 32, 32, 0, GL_RGBA_INTEGER, GL_INT, GL_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
697 map.insert(InternalFormatInfoPair(GL_RGBA32UI, InternalFormatInfo::RGBAFormat(32, 32, 32, 32, 0, GL_RGBA_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]698
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]699 map.insert(InternalFormatInfoPair(GL_BGRA8_EXT, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
700 map.insert(InternalFormatInfoPair(GL_BGRA4_ANGLEX, InternalFormatInfo::RGBAFormat( 4, 4, 4, 4, 0, GL_BGRA_EXT, GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
701 map.insert(InternalFormatInfoPair(GL_BGR5_A1_ANGLEX, InternalFormatInfo::RGBAFormat( 5, 5, 5, 1, 0, GL_BGRA_EXT, GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]702
703 // Floating point renderability and filtering is provided by OES_texture_float and OES_texture_half_float
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]704 // | Internal format | | D |S | Format | Type | Comp | SRGB | Color renderable | Texture filterable | Supported |
705 // | | | | | | | type | | | | |
706 map.insert(InternalFormatInfoPair(GL_R16F, InternalFormatInfo::RGBAFormat(16, 0, 0, 0, 0, GL_RED, GL_HALF_FLOAT, GL_FLOAT, false, CheckSupport<&Context::supportsFloat16RenderableTextures, &rx::Renderer::getFloat16TextureRenderingSupport>, CheckSupport<&Context::supportsFloat16LinearFilter, &rx::Renderer::getFloat16TextureFilteringSupport>, AlwaysSupported )));
707 map.insert(InternalFormatInfoPair(GL_RG16F, InternalFormatInfo::RGBAFormat(16, 16, 0, 0, 0, GL_RG, GL_HALF_FLOAT, GL_FLOAT, false, CheckSupport<&Context::supportsFloat16RenderableTextures, &rx::Renderer::getFloat16TextureRenderingSupport>, CheckSupport<&Context::supportsFloat16LinearFilter, &rx::Renderer::getFloat16TextureFilteringSupport>, AlwaysSupported )));
708 map.insert(InternalFormatInfoPair(GL_RGB16F, InternalFormatInfo::RGBAFormat(16, 16, 16, 0, 0, GL_RGB, GL_HALF_FLOAT, GL_FLOAT, false, CheckSupport<&Context::supportsFloat16RenderableTextures, &rx::Renderer::getFloat16TextureRenderingSupport>, CheckSupport<&Context::supportsFloat16LinearFilter, &rx::Renderer::getFloat16TextureFilteringSupport>, AlwaysSupported )));
709 map.insert(InternalFormatInfoPair(GL_RGBA16F, InternalFormatInfo::RGBAFormat(16, 16, 16, 16, 0, GL_RGBA, GL_HALF_FLOAT, GL_FLOAT, false, CheckSupport<&Context::supportsFloat16RenderableTextures, &rx::Renderer::getFloat16TextureRenderingSupport>, CheckSupport<&Context::supportsFloat16LinearFilter, &rx::Renderer::getFloat16TextureFilteringSupport>, AlwaysSupported )));
710 map.insert(InternalFormatInfoPair(GL_R32F, InternalFormatInfo::RGBAFormat(32, 0, 0, 0, 0, GL_RED, GL_FLOAT, GL_FLOAT, false, CheckSupport<&Context::supportsFloat32RenderableTextures, &rx::Renderer::getFloat32TextureRenderingSupport>, CheckSupport<&Context::supportsFloat32LinearFilter, &rx::Renderer::getFloat32TextureFilteringSupport>, AlwaysSupported )));
711 map.insert(InternalFormatInfoPair(GL_RG32F, InternalFormatInfo::RGBAFormat(32, 32, 0, 0, 0, GL_RG, GL_FLOAT, GL_FLOAT, false, CheckSupport<&Context::supportsFloat32RenderableTextures, &rx::Renderer::getFloat32TextureRenderingSupport>, CheckSupport<&Context::supportsFloat32LinearFilter, &rx::Renderer::getFloat32TextureFilteringSupport>, AlwaysSupported )));
712 map.insert(InternalFormatInfoPair(GL_RGB32F, InternalFormatInfo::RGBAFormat(32, 32, 32, 0, 0, GL_RGB, GL_FLOAT, GL_FLOAT, false, CheckSupport<&Context::supportsFloat32RenderableTextures, &rx::Renderer::getFloat32TextureRenderingSupport>, CheckSupport<&Context::supportsFloat32LinearFilter, &rx::Renderer::getFloat32TextureFilteringSupport>, AlwaysSupported )));
713 map.insert(InternalFormatInfoPair(GL_RGBA32F, InternalFormatInfo::RGBAFormat(32, 32, 32, 32, 0, GL_RGBA, GL_FLOAT, GL_FLOAT, false, CheckSupport<&Context::supportsFloat32RenderableTextures, &rx::Renderer::getFloat32TextureRenderingSupport>, CheckSupport<&Context::supportsFloat32LinearFilter, &rx::Renderer::getFloat32TextureFilteringSupport>, AlwaysSupported )));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]714
715 // Depth stencil formats
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]716 // | Internal format | | D |S | Format | Type | Component type | Depth | Stencil | Supported |
717 // | | | | | | | | renderable | renderable | |
718 map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT16, InternalFormatInfo::DepthStencilFormat(16, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, AlwaysSupported, NeverSupported, AlwaysSupported)));
719 map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT24, InternalFormatInfo::DepthStencilFormat(24, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, GL_UNSIGNED_NORMALIZED, AlwaysSupported, NeverSupported, AlwaysSupported)));
720 map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT32F, InternalFormatInfo::DepthStencilFormat(32, 0, GL_DEPTH_COMPONENT, GL_FLOAT, GL_FLOAT, AlwaysSupported, NeverSupported, AlwaysSupported)));
721 map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT32_OES, InternalFormatInfo::DepthStencilFormat(32, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, GL_UNSIGNED_NORMALIZED, AlwaysSupported, NeverSupported, AlwaysSupported)));
722 map.insert(InternalFormatInfoPair(GL_DEPTH24_STENCIL8, InternalFormatInfo::DepthStencilFormat(24, 8, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, GL_UNSIGNED_NORMALIZED, AlwaysSupported, AlwaysSupported, AlwaysSupported)));
723 map.insert(InternalFormatInfoPair(GL_DEPTH32F_STENCIL8, InternalFormatInfo::DepthStencilFormat(32, 8, GL_DEPTH_STENCIL, GL_FLOAT_32_UNSIGNED_INT_24_8_REV, GL_FLOAT, AlwaysSupported, AlwaysSupported, AlwaysSupported)));
724 map.insert(InternalFormatInfoPair(GL_STENCIL_INDEX8, InternalFormatInfo::DepthStencilFormat( 0, 8, GL_DEPTH_STENCIL, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, NeverSupported, AlwaysSupported, AlwaysSupported)));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]725
726 // Luminance alpha formats
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]727 // | Internal format | | L | A | Format | Type | Component type | Supported |
728 map.insert(InternalFormatInfoPair(GL_ALPHA8_EXT, InternalFormatInfo::LUMAFormat( 0, 8, GL_ALPHA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, AlwaysSupported)));
729 map.insert(InternalFormatInfoPair(GL_LUMINANCE8_EXT, InternalFormatInfo::LUMAFormat( 8, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, AlwaysSupported)));
730 map.insert(InternalFormatInfoPair(GL_ALPHA32F_EXT, InternalFormatInfo::LUMAFormat( 0, 32, GL_ALPHA, GL_FLOAT, GL_FLOAT, AlwaysSupported)));
731 map.insert(InternalFormatInfoPair(GL_LUMINANCE32F_EXT, InternalFormatInfo::LUMAFormat(32, 0, GL_LUMINANCE, GL_FLOAT, GL_FLOAT, AlwaysSupported)));
732 map.insert(InternalFormatInfoPair(GL_ALPHA16F_EXT, InternalFormatInfo::LUMAFormat( 0, 16, GL_ALPHA, GL_HALF_FLOAT, GL_FLOAT, AlwaysSupported)));
733 map.insert(InternalFormatInfoPair(GL_LUMINANCE16F_EXT, InternalFormatInfo::LUMAFormat(16, 0, GL_LUMINANCE, GL_HALF_FLOAT, GL_FLOAT, AlwaysSupported)));
734 map.insert(InternalFormatInfoPair(GL_LUMINANCE8_ALPHA8_EXT, InternalFormatInfo::LUMAFormat( 8, 8, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, AlwaysSupported)));
735 map.insert(InternalFormatInfoPair(GL_LUMINANCE_ALPHA32F_EXT, InternalFormatInfo::LUMAFormat(32, 32, GL_LUMINANCE_ALPHA, GL_FLOAT, GL_FLOAT, AlwaysSupported)));
736 map.insert(InternalFormatInfoPair(GL_LUMINANCE_ALPHA16F_EXT, InternalFormatInfo::LUMAFormat(16, 16, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT, GL_FLOAT, AlwaysSupported)));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]737
738 // Unsized formats
739 // | Internal format | | Format | Supported |
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]740 map.insert(InternalFormatInfoPair(GL_ALPHA, InternalFormatInfo::UnsizedFormat(GL_ALPHA, AlwaysSupported)));
741 map.insert(InternalFormatInfoPair(GL_LUMINANCE, InternalFormatInfo::UnsizedFormat(GL_LUMINANCE, AlwaysSupported)));
742 map.insert(InternalFormatInfoPair(GL_LUMINANCE_ALPHA, InternalFormatInfo::UnsizedFormat(GL_LUMINANCE_ALPHA, AlwaysSupported)));
743 map.insert(InternalFormatInfoPair(GL_RGB, InternalFormatInfo::UnsizedFormat(GL_RGB, AlwaysSupported)));
744 map.insert(InternalFormatInfoPair(GL_RGBA, InternalFormatInfo::UnsizedFormat(GL_RGBA, AlwaysSupported)));
745 map.insert(InternalFormatInfoPair(GL_BGRA_EXT, InternalFormatInfo::UnsizedFormat(GL_BGRA_EXT, AlwaysSupported)));
746
747 // Compressed formats, From ES 3.0.1 spec, table 3.16
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]748 // | Internal format | |W |H | BS |CC| Format | Type | SRGB | Supported |
749 map.insert(InternalFormatInfoPair(GL_COMPRESSED_R11_EAC, InternalFormatInfo::CompressedFormat(4, 4, 64, 1, GL_COMPRESSED_R11_EAC, GL_UNSIGNED_BYTE, false, UnimplementedSupport)));
750 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SIGNED_R11_EAC, InternalFormatInfo::CompressedFormat(4, 4, 64, 1, GL_COMPRESSED_SIGNED_R11_EAC, GL_UNSIGNED_BYTE, false, UnimplementedSupport)));
751 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RG11_EAC, InternalFormatInfo::CompressedFormat(4, 4, 128, 2, GL_COMPRESSED_RG11_EAC, GL_UNSIGNED_BYTE, false, UnimplementedSupport)));
752 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SIGNED_RG11_EAC, InternalFormatInfo::CompressedFormat(4, 4, 128, 2, GL_COMPRESSED_SIGNED_RG11_EAC, GL_UNSIGNED_BYTE, false, UnimplementedSupport)));
753 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGB8_ETC2, InternalFormatInfo::CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_RGB8_ETC2, GL_UNSIGNED_BYTE, false, UnimplementedSupport)));
754 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SRGB8_ETC2, InternalFormatInfo::CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_SRGB8_ETC2, GL_UNSIGNED_BYTE, true, UnimplementedSupport)));
755 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, InternalFormatInfo::CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_UNSIGNED_BYTE, false, UnimplementedSupport)));
756 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, InternalFormatInfo::CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_UNSIGNED_BYTE, true, UnimplementedSupport)));
757 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA8_ETC2_EAC, InternalFormatInfo::CompressedFormat(4, 4, 128, 4, GL_COMPRESSED_RGBA8_ETC2_EAC, GL_UNSIGNED_BYTE, false, UnimplementedSupport)));
758 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC, InternalFormatInfo::CompressedFormat(4, 4, 128, 4, GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC, GL_UNSIGNED_BYTE, true, UnimplementedSupport)));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]759
760 // From GL_EXT_texture_compression_dxt1
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]761 // | Internal format | |W |H | BS |CC| Format | Type | SRGB | Supported |
762 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGB_S3TC_DXT1_EXT, InternalFormatInfo::CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE, false, AlwaysSupported)));
763 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, InternalFormatInfo::CompressedFormat(4, 4, 64, 4, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE, false, AlwaysSupported)));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]764
765 // From GL_ANGLE_texture_compression_dxt3
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]766 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, InternalFormatInfo::CompressedFormat(4, 4, 128, 4, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, GL_UNSIGNED_BYTE, false, AlwaysSupported)));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]767
768 // From GL_ANGLE_texture_compression_dxt5
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]769 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, InternalFormatInfo::CompressedFormat(4, 4, 128, 4, GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, GL_UNSIGNED_BYTE, false, AlwaysSupported)));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]770
771 return map;
772}
773
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]774static InternalFormatInfoMap BuildES2InternalFormatInfoMap()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]775{
776 InternalFormatInfoMap map;
777
778 // From ES 2.0.25 table 4.5
779 map.insert(InternalFormatInfoPair(GL_NONE, InternalFormatInfo()));
780
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]781 // | Internal format | | R | G | B | A |S | Format | Type | Component type | SRGB | Color | Texture | Supported |
782 // | | | | | | | | | | | | renderable | filterable | |
783 map.insert(InternalFormatInfoPair(GL_RGBA4, InternalFormatInfo::RGBAFormat( 4, 4, 4, 4, 0, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported)));
784 map.insert(InternalFormatInfoPair(GL_RGB5_A1, InternalFormatInfo::RGBAFormat( 5, 5, 5, 1, 0, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported)));
785 map.insert(InternalFormatInfoPair(GL_RGB565, InternalFormatInfo::RGBAFormat( 5, 6, 5, 0, 0, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported)));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]786
787 // Extension formats
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]788 map.insert(InternalFormatInfoPair(GL_RGB8_OES, InternalFormatInfo::RGBAFormat( 8, 8, 8, 0, 0, GL_RGB, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported)));
789 map.insert(InternalFormatInfoPair(GL_RGBA8_OES, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported)));
790 map.insert(InternalFormatInfoPair(GL_BGRA8_EXT, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, AlwaysSupported, AlwaysSupported, AlwaysSupported)));
791 map.insert(InternalFormatInfoPair(GL_BGRA4_ANGLEX, InternalFormatInfo::RGBAFormat( 4, 4, 4, 4, 0, GL_BGRA_EXT, GL_UNSIGNED_SHORT_4_4_4_4, GL_UNSIGNED_NORMALIZED, false, NeverSupported, AlwaysSupported, AlwaysSupported)));
792 map.insert(InternalFormatInfoPair(GL_BGR5_A1_ANGLEX, InternalFormatInfo::RGBAFormat( 5, 5, 5, 1, 0, GL_BGRA_EXT, GL_UNSIGNED_SHORT_5_5_5_1, GL_UNSIGNED_NORMALIZED, false, NeverSupported, AlwaysSupported, AlwaysSupported)));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]793
794 // Floating point formats have to query the renderer for support
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]795 // | Internal format | | R | G | B | A |S | Format | Type | Comp | SRGB | Color renderable | Texture filterable | Supported |
796 // | | | | | | | | | | type | | | | |
797 map.insert(InternalFormatInfoPair(GL_RGB16F_EXT, InternalFormatInfo::RGBAFormat(16, 16, 16, 0, 0, GL_RGB, GL_HALF_FLOAT_OES, GL_FLOAT, false, CheckSupport<&Context::supportsFloat16RenderableTextures, &rx::Renderer::getFloat16TextureRenderingSupport>, CheckSupport<&Context::supportsFloat16LinearFilter, &rx::Renderer::getFloat16TextureFilteringSupport>, CheckSupport<&Context::supportsFloat16Textures>)));
798 map.insert(InternalFormatInfoPair(GL_RGB32F_EXT, InternalFormatInfo::RGBAFormat(32, 32, 32, 0, 0, GL_RGB, GL_FLOAT, GL_FLOAT, false, CheckSupport<&Context::supportsFloat32RenderableTextures, &rx::Renderer::getFloat32TextureRenderingSupport>, CheckSupport<&Context::supportsFloat32LinearFilter, &rx::Renderer::getFloat32TextureFilteringSupport>, CheckSupport<&Context::supportsFloat32Textures>)));
799 map.insert(InternalFormatInfoPair(GL_RGBA16F_EXT, InternalFormatInfo::RGBAFormat(16, 16, 16, 16, 0, GL_RGBA, GL_HALF_FLOAT_OES, GL_FLOAT, false, CheckSupport<&Context::supportsFloat16RenderableTextures, &rx::Renderer::getFloat16TextureRenderingSupport>, CheckSupport<&Context::supportsFloat16LinearFilter, &rx::Renderer::getFloat16TextureFilteringSupport>, CheckSupport<&Context::supportsFloat16Textures>)));
800 map.insert(InternalFormatInfoPair(GL_RGBA32F_EXT, InternalFormatInfo::RGBAFormat(32, 32, 32, 32, 0, GL_RGBA, GL_FLOAT, GL_FLOAT, false, CheckSupport<&Context::supportsFloat32RenderableTextures, &rx::Renderer::getFloat32TextureRenderingSupport>, CheckSupport<&Context::supportsFloat32LinearFilter, &rx::Renderer::getFloat32TextureFilteringSupport>, CheckSupport<&Context::supportsFloat32Textures>)));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]801
802 // Depth and stencil formats
Shannon Woods9e73b212013-07-08 10:32:19 -0400[diff] [blame]803 // | Internal format | | D |S | Format | Type | Internal format | Depth | Stencil | Supported |
804 // | | | | | | | type | renderable | renderable | |
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]805 map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT32_OES,InternalFormatInfo::DepthStencilFormat(32, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, GL_UNSIGNED_NORMALIZED, AlwaysSupported, NeverSupported, CheckSupport<&Context::supportsDepthTextures>)));
806 map.insert(InternalFormatInfoPair(GL_DEPTH24_STENCIL8_OES, InternalFormatInfo::DepthStencilFormat(24, 8, GL_DEPTH_STENCIL_OES, GL_UNSIGNED_INT_24_8_OES, GL_UNSIGNED_NORMALIZED, AlwaysSupported, AlwaysSupported, CheckSupport<&Context::supportsDepthTextures>)));
807 map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT16, InternalFormatInfo::DepthStencilFormat(16, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, AlwaysSupported, NeverSupported, AlwaysSupported)));
808 map.insert(InternalFormatInfoPair(GL_STENCIL_INDEX8, InternalFormatInfo::DepthStencilFormat( 0, 8, GL_DEPTH_STENCIL_OES, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, NeverSupported, AlwaysSupported, AlwaysSupported)));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]809
810 // Unsized formats
811 // | Internal format | | Format | Supported |
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]812 map.insert(InternalFormatInfoPair(GL_ALPHA, InternalFormatInfo::UnsizedFormat(GL_ALPHA, AlwaysSupported)));
813 map.insert(InternalFormatInfoPair(GL_LUMINANCE, InternalFormatInfo::UnsizedFormat(GL_LUMINANCE, AlwaysSupported)));
814 map.insert(InternalFormatInfoPair(GL_LUMINANCE_ALPHA, InternalFormatInfo::UnsizedFormat(GL_LUMINANCE_ALPHA, AlwaysSupported)));
815 map.insert(InternalFormatInfoPair(GL_RGB, InternalFormatInfo::UnsizedFormat(GL_RGB, AlwaysSupported)));
816 map.insert(InternalFormatInfoPair(GL_RGBA, InternalFormatInfo::UnsizedFormat(GL_RGBA, AlwaysSupported)));
817 map.insert(InternalFormatInfoPair(GL_BGRA_EXT, InternalFormatInfo::UnsizedFormat(GL_BGRA_EXT, AlwaysSupported)));
818 map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT, InternalFormatInfo::UnsizedFormat(GL_DEPTH_COMPONENT, AlwaysSupported)));
819 map.insert(InternalFormatInfoPair(GL_DEPTH_STENCIL_OES, InternalFormatInfo::UnsizedFormat(GL_DEPTH_STENCIL_OES, AlwaysSupported)));
820
821 // Luminance alpha formats from GL_EXT_texture_storage
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]822 // | Internal format | | L | A | Format | Type | Component type | Supported |
823 map.insert(InternalFormatInfoPair(GL_ALPHA8_EXT, InternalFormatInfo::LUMAFormat( 0, 8, GL_ALPHA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, AlwaysSupported)));
824 map.insert(InternalFormatInfoPair(GL_LUMINANCE8_EXT, InternalFormatInfo::LUMAFormat( 8, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, AlwaysSupported)));
825 map.insert(InternalFormatInfoPair(GL_ALPHA32F_EXT, InternalFormatInfo::LUMAFormat( 0, 32, GL_ALPHA, GL_FLOAT, GL_FLOAT, AlwaysSupported)));
826 map.insert(InternalFormatInfoPair(GL_LUMINANCE32F_EXT, InternalFormatInfo::LUMAFormat(32, 0, GL_LUMINANCE, GL_FLOAT, GL_FLOAT, AlwaysSupported)));
827 map.insert(InternalFormatInfoPair(GL_ALPHA16F_EXT, InternalFormatInfo::LUMAFormat( 0, 16, GL_ALPHA, GL_HALF_FLOAT_OES, GL_FLOAT, AlwaysSupported)));
828 map.insert(InternalFormatInfoPair(GL_LUMINANCE16F_EXT, InternalFormatInfo::LUMAFormat(16, 0, GL_LUMINANCE, GL_HALF_FLOAT_OES, GL_FLOAT, AlwaysSupported)));
829 map.insert(InternalFormatInfoPair(GL_LUMINANCE8_ALPHA8_EXT, InternalFormatInfo::LUMAFormat( 8, 8, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, AlwaysSupported)));
830 map.insert(InternalFormatInfoPair(GL_LUMINANCE_ALPHA32F_EXT, InternalFormatInfo::LUMAFormat(32, 32, GL_LUMINANCE_ALPHA, GL_FLOAT, GL_FLOAT, AlwaysSupported)));
831 map.insert(InternalFormatInfoPair(GL_LUMINANCE_ALPHA16F_EXT, InternalFormatInfo::LUMAFormat(16, 16, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT_OES, GL_FLOAT, AlwaysSupported)));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]832
833 // From GL_EXT_texture_compression_dxt1
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]834 // | Internal format | |W |H | BS |CC|Format | Type | SRGB | Supported |
835 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGB_S3TC_DXT1_EXT, InternalFormatInfo::CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE, false, CheckSupport<&Context::supportsDXT1Textures>)));
836 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, InternalFormatInfo::CompressedFormat(4, 4, 64, 4, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE, false, CheckSupport<&Context::supportsDXT1Textures>)));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]837
838 // From GL_ANGLE_texture_compression_dxt3
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]839 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, InternalFormatInfo::CompressedFormat(4, 4, 128, 4, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, GL_UNSIGNED_BYTE, false, CheckSupport<&Context::supportsDXT3Textures>)));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]840
841 // From GL_ANGLE_texture_compression_dxt5
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]842 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, InternalFormatInfo::CompressedFormat(4, 4, 128, 4, GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, GL_UNSIGNED_BYTE, false, CheckSupport<&Context::supportsDXT5Textures>)));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]843
844 return map;
845}
846
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]847static bool GetInternalFormatInfo(GLint internalFormat, GLuint clientVersion, InternalFormatInfo *outFormatInfo)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]848{
849 const InternalFormatInfoMap* map = NULL;
850
851 if (clientVersion == 2)
852 {
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]853 static const InternalFormatInfoMap formatMap = BuildES2InternalFormatInfoMap();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]854 map = &formatMap;
855 }
856 else if (clientVersion == 3)
857 {
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]858 static const InternalFormatInfoMap formatMap = BuildES3InternalFormatInfoMap();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]859 map = &formatMap;
860 }
861 else
862 {
863 UNREACHABLE();
864 }
865
866 InternalFormatInfoMap::const_iterator iter = map->find(internalFormat);
867 if (iter != map->end())
868 {
869 if (outFormatInfo)
870 {
871 *outFormatInfo = iter->second;
872 }
873 return true;
874 }
875 else
876 {
877 return false;
878 }
879}
880
881typedef std::set<GLenum> FormatSet;
882
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]883static FormatSet BuildES2ValidFormatSet()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]884{
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]885 static const FormatMap &formatMap = GetFormatMap(2);
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]886
887 FormatSet set;
888
889 for (FormatMap::const_iterator i = formatMap.begin(); i != formatMap.end(); i++)
890 {
891 const FormatTypePair& formatPair = i->first;
892 set.insert(formatPair.first);
893 }
894
895 return set;
896}
897
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]898static FormatSet BuildES3ValidFormatSet()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]899{
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]900 static const ES3FormatSet &formatSet = GetES3FormatSet();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]901
902 FormatSet set;
903
904 for (ES3FormatSet::const_iterator i = formatSet.begin(); i != formatSet.end(); i++)
905 {
906 const FormatInfo& formatInfo = *i;
907 set.insert(formatInfo.mFormat);
908 }
909
910 return set;
911}
912
913typedef std::set<GLenum> TypeSet;
914
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]915static TypeSet BuildES2ValidTypeSet()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]916{
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]917 static const FormatMap &formatMap = GetFormatMap(2);
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]918
919 TypeSet set;
920
921 for (FormatMap::const_iterator i = formatMap.begin(); i != formatMap.end(); i++)
922 {
923 const FormatTypePair& formatPair = i->first;
924 set.insert(formatPair.second);
925 }
926
927 return set;
928}
929
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]930static TypeSet BuildES3ValidTypeSet()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]931{
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]932 static const ES3FormatSet &formatSet = GetES3FormatSet();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]933
934 TypeSet set;
935
936 for (ES3FormatSet::const_iterator i = formatSet.begin(); i != formatSet.end(); i++)
937 {
938 const FormatInfo& formatInfo = *i;
939 set.insert(formatInfo.mType);
940 }
941
942 return set;
943}
944
945struct CopyConversion
946{
947 GLenum mTextureFormat;
948 GLenum mFramebufferFormat;
949
950 CopyConversion(GLenum textureFormat, GLenum framebufferFormat)
951 : mTextureFormat(textureFormat), mFramebufferFormat(framebufferFormat) { }
952
953 bool operator<(const CopyConversion& other) const
954 {
955 return memcmp(this, &other, sizeof(CopyConversion)) < 0;
956 }
957};
958
959typedef std::set<CopyConversion> CopyConversionSet;
960
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]961static CopyConversionSet BuildValidES3CopyTexImageCombinations()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]962{
963 CopyConversionSet set;
964
965 // From ES 3.0.1 spec, table 3.15
966 set.insert(CopyConversion(GL_ALPHA, GL_RGBA));
967 set.insert(CopyConversion(GL_LUMINANCE, GL_RED));
968 set.insert(CopyConversion(GL_LUMINANCE, GL_RG));
969 set.insert(CopyConversion(GL_LUMINANCE, GL_RGB));
970 set.insert(CopyConversion(GL_LUMINANCE, GL_RGBA));
971 set.insert(CopyConversion(GL_LUMINANCE_ALPHA, GL_RGBA));
972 set.insert(CopyConversion(GL_RED, GL_RED));
973 set.insert(CopyConversion(GL_RED, GL_RG));
974 set.insert(CopyConversion(GL_RED, GL_RGB));
975 set.insert(CopyConversion(GL_RED, GL_RGBA));
976 set.insert(CopyConversion(GL_RG, GL_RG));
977 set.insert(CopyConversion(GL_RG, GL_RGB));
978 set.insert(CopyConversion(GL_RG, GL_RGBA));
979 set.insert(CopyConversion(GL_RGB, GL_RGB));
980 set.insert(CopyConversion(GL_RGB, GL_RGBA));
981 set.insert(CopyConversion(GL_RGBA, GL_RGBA));
982
Jamie Madillb70e5f72013-07-10 16:57:52 -0400[diff] [blame]983 // Necessary for ANGLE back-buffers
984 set.insert(CopyConversion(GL_ALPHA, GL_BGRA_EXT));
985 set.insert(CopyConversion(GL_LUMINANCE, GL_BGRA_EXT));
986 set.insert(CopyConversion(GL_LUMINANCE_ALPHA, GL_BGRA_EXT));
987 set.insert(CopyConversion(GL_RED, GL_BGRA_EXT));
988 set.insert(CopyConversion(GL_RG, GL_BGRA_EXT));
989 set.insert(CopyConversion(GL_RGB, GL_BGRA_EXT));
990 set.insert(CopyConversion(GL_RGBA, GL_BGRA_EXT));
991
shannonwoods@chromium.orgffab47d2013-05-30 00:16:22 +0000[diff] [blame]992 set.insert(CopyConversion(GL_RED_INTEGER, GL_RED_INTEGER));
993 set.insert(CopyConversion(GL_RED_INTEGER, GL_RG_INTEGER));
994 set.insert(CopyConversion(GL_RED_INTEGER, GL_RGB_INTEGER));
995 set.insert(CopyConversion(GL_RED_INTEGER, GL_RGBA_INTEGER));
996 set.insert(CopyConversion(GL_RG_INTEGER, GL_RG_INTEGER));
997 set.insert(CopyConversion(GL_RG_INTEGER, GL_RGB_INTEGER));
998 set.insert(CopyConversion(GL_RG_INTEGER, GL_RGBA_INTEGER));
999 set.insert(CopyConversion(GL_RGB_INTEGER, GL_RGB_INTEGER));
1000 set.insert(CopyConversion(GL_RGB_INTEGER, GL_RGBA_INTEGER));
1001 set.insert(CopyConversion(GL_RGBA_INTEGER, GL_RGBA_INTEGER));
1002
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1003 return set;
1004}
1005
1006bool IsValidInternalFormat(GLint internalFormat, const Context *context)
1007{
1008 if (!context)
1009 {
1010 return false;
1011 }
1012
1013 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1014 if (GetInternalFormatInfo(internalFormat, context->getClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1015 {
1016 ASSERT(internalFormatInfo.mSupportFunction != NULL);
1017 return internalFormatInfo.mSupportFunction(context);
1018 }
1019 else
1020 {
1021 return false;
1022 }
1023}
1024
1025bool IsValidFormat(GLenum format, GLuint clientVersion)
1026{
1027 if (clientVersion == 2)
1028 {
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1029 static const FormatSet formatSet = BuildES2ValidFormatSet();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1030 return formatSet.find(format) != formatSet.end();
1031 }
1032 else if (clientVersion == 3)
1033 {
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1034 static const FormatSet formatSet = BuildES3ValidFormatSet();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1035 return formatSet.find(format) != formatSet.end();
1036 }
1037 else
1038 {
1039 UNREACHABLE();
1040 return false;
1041 }
1042}
1043
1044bool IsValidType(GLenum type, GLuint clientVersion)
1045{
1046 if (clientVersion == 2)
1047 {
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1048 static const TypeSet typeSet = BuildES2ValidTypeSet();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1049 return typeSet.find(type) != typeSet.end();
1050 }
1051 else if (clientVersion == 3)
1052 {
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1053 static const TypeSet typeSet = BuildES3ValidTypeSet();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1054 return typeSet.find(type) != typeSet.end();
1055 }
1056 else
1057 {
1058 UNREACHABLE();
1059 return false;
1060 }
1061}
1062
1063bool IsValidFormatCombination(GLint internalFormat, GLenum format, GLenum type, GLuint clientVersion)
1064{
1065 if (clientVersion == 2)
1066 {
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]1067 static const FormatMap &formats = GetFormatMap(clientVersion);
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1068 FormatMap::const_iterator iter = formats.find(FormatTypePair(format, type));
1069
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]1070 return (iter != formats.end()) && ((internalFormat == (GLint)type) || (internalFormat == iter->second.mInternalFormat));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1071 }
1072 else if (clientVersion == 3)
1073 {
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1074 static const ES3FormatSet &formats = GetES3FormatSet();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1075 return formats.find(FormatInfo(internalFormat, format, type)) != formats.end();
1076 }
1077 else
1078 {
1079 UNREACHABLE();
1080 return false;
1081 }
1082}
1083
shannonwoods@chromium.orgffab47d2013-05-30 00:16:22 +0000[diff] [blame]1084bool IsValidCopyTexImageCombination(GLenum textureInternalFormat, GLenum frameBufferInternalFormat, GLuint clientVersion)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1085{
shannonwoods@chromium.orgffab47d2013-05-30 00:16:22 +0000[diff] [blame]1086 InternalFormatInfo textureInternalFormatInfo;
1087 InternalFormatInfo framebufferInternalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1088 if (GetInternalFormatInfo(textureInternalFormat, clientVersion, &textureInternalFormatInfo) &&
1089 GetInternalFormatInfo(frameBufferInternalFormat, clientVersion, &framebufferInternalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1090 {
shannonwoods@chromium.orgffab47d2013-05-30 00:16:22 +0000[diff] [blame]1091 if (clientVersion == 2)
1092 {
1093 UNIMPLEMENTED();
1094 return false;
1095 }
1096 else if (clientVersion == 3)
1097 {
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1098 static const CopyConversionSet conversionSet = BuildValidES3CopyTexImageCombinations();
shannonwoods@chromium.orgffab47d2013-05-30 00:16:22 +0000[diff] [blame]1099 const CopyConversion conversion = CopyConversion(textureInternalFormatInfo.mFormat,
1100 framebufferInternalFormatInfo.mFormat);
1101 if (conversionSet.find(conversion) != conversionSet.end())
1102 {
1103 // Section 3.8.5 of the GLES3 3.0.2 spec states that source and destination formats
shannonwoods@chromium.org96c62912013-05-30 00:17:00 +0000[diff] [blame]1104 // must both be signed or unsigned or fixed/floating point and both source and destinations
1105 // must be either both SRGB or both not SRGB
1106
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]1107 if ((textureInternalFormatInfo.mColorEncoding == GL_SRGB) != (framebufferInternalFormatInfo.mColorEncoding == GL_SRGB))
shannonwoods@chromium.org96c62912013-05-30 00:17:00 +0000[diff] [blame]1108 {
1109 return false;
1110 }
shannonwoods@chromium.orgffab47d2013-05-30 00:16:22 +0000[diff] [blame]1111
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]1112 if ((textureInternalFormatInfo.mComponentType == GL_INT && framebufferInternalFormatInfo.mComponentType == GL_INT ) ||
1113 (textureInternalFormatInfo.mComponentType == GL_UNSIGNED_INT && framebufferInternalFormatInfo.mComponentType == GL_UNSIGNED_INT))
shannonwoods@chromium.orgffab47d2013-05-30 00:16:22 +0000[diff] [blame]1114 {
1115 return true;
1116 }
1117
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]1118 if ((textureInternalFormatInfo.mComponentType == GL_UNSIGNED_NORMALIZED ||
1119 textureInternalFormatInfo.mComponentType == GL_SIGNED_NORMALIZED ||
1120 textureInternalFormatInfo.mComponentType == GL_FLOAT ) &&
1121 (framebufferInternalFormatInfo.mComponentType == GL_UNSIGNED_NORMALIZED ||
1122 framebufferInternalFormatInfo.mComponentType == GL_SIGNED_NORMALIZED ||
1123 framebufferInternalFormatInfo.mComponentType == GL_FLOAT ))
shannonwoods@chromium.orgffab47d2013-05-30 00:16:22 +0000[diff] [blame]1124 {
1125 return true;
1126 }
1127 }
1128
1129 return false;
1130 }
1131 else
1132 {
1133 UNREACHABLE();
1134 return false;
1135 }
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1136 }
1137 else
1138 {
1139 UNREACHABLE();
1140 return false;
1141 }
1142}
1143
1144bool IsSizedInternalFormat(GLint internalFormat, GLuint clientVersion)
1145{
1146 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1147 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1148 {
1149 return internalFormatInfo.mPixelBits > 0;
1150 }
1151 else
1152 {
1153 UNREACHABLE();
1154 return false;
1155 }
1156}
1157
1158GLint GetSizedInternalFormat(GLenum format, GLenum type, GLuint clientVersion)
1159{
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]1160 const FormatMap &formats = GetFormatMap(clientVersion);
1161 FormatMap::const_iterator iter = formats.find(FormatTypePair(format, type));
1162 return (iter != formats.end()) ? iter->second.mInternalFormat : GL_NONE;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1163}
1164
1165GLuint GetPixelBytes(GLint internalFormat, GLuint clientVersion)
1166{
1167 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1168 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1169 {
1170 return internalFormatInfo.mPixelBits / 8;
1171 }
1172 else
1173 {
1174 UNREACHABLE();
1175 return 0;
1176 }
1177}
1178
1179GLuint GetAlphaBits(GLint internalFormat, GLuint clientVersion)
1180{
1181 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1182 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1183 {
1184 return internalFormatInfo.mAlphaBits;
1185 }
1186 else
1187 {
1188 UNREACHABLE();
1189 return 0;
1190 }
1191}
1192
1193GLuint GetRedBits(GLint internalFormat, GLuint clientVersion)
1194{
1195 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1196 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1197 {
1198 return internalFormatInfo.mRedBits;
1199 }
1200 else
1201 {
1202 UNREACHABLE();
1203 return 0;
1204 }
1205}
1206
1207GLuint GetGreenBits(GLint internalFormat, GLuint clientVersion)
1208{
1209 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1210 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1211 {
1212 return internalFormatInfo.mGreenBits;
1213 }
1214 else
1215 {
1216 UNREACHABLE();
1217 return 0;
1218 }
1219}
1220
1221GLuint GetBlueBits(GLint internalFormat, GLuint clientVersion)
1222{
1223 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1224 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1225 {
Geoff Lang24159222013-06-05 14:56:32 -0400[diff] [blame]1226 return internalFormatInfo.mBlueBits;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1227 }
1228 else
1229 {
1230 UNREACHABLE();
1231 return 0;
1232 }
1233}
1234
1235GLuint GetLuminanceBits(GLint internalFormat, GLuint clientVersion)
1236{
1237 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1238 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1239 {
1240 return internalFormatInfo.mLuminanceBits;
1241 }
1242 else
1243 {
1244 UNREACHABLE();
1245 return 0;
1246 }
1247}
1248
1249GLuint GetDepthBits(GLint internalFormat, GLuint clientVersion)
1250{
1251 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1252 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1253 {
1254 return internalFormatInfo.mDepthBits;
1255 }
1256 else
1257 {
1258 UNREACHABLE();
1259 return 0;
1260 }
1261}
1262
1263GLuint GetStencilBits(GLint internalFormat, GLuint clientVersion)
1264{
1265 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1266 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1267 {
1268 return internalFormatInfo.mStencilBits;
1269 }
1270 else
1271 {
1272 UNREACHABLE();
1273 return 0;
1274 }
1275}
1276
Geoff Langf23eb282013-07-22 10:52:19 -0400[diff] [blame]1277GLuint GetTypeBytes(GLenum type)
1278{
1279 TypeInfo typeInfo;
1280 if (GetTypeInfo(type, &typeInfo))
1281 {
1282 return typeInfo.mTypeBytes;
1283 }
1284 else
1285 {
1286 UNREACHABLE();
1287 return 0;
1288 }
1289}
1290
1291bool IsSpecialInterpretationType(GLenum type)
1292{
1293 TypeInfo typeInfo;
1294 if (GetTypeInfo(type, &typeInfo))
1295 {
1296 return typeInfo.mSpecialInterpretation;
1297 }
1298 else
1299 {
1300 UNREACHABLE();
1301 return false;
1302 }
1303}
1304
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1305GLenum GetFormat(GLint internalFormat, GLuint clientVersion)
1306{
1307 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1308 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1309 {
1310 return internalFormatInfo.mFormat;
1311 }
1312 else
1313 {
1314 UNREACHABLE();
1315 return GL_NONE;
1316 }
1317}
1318
1319GLenum GetType(GLint internalFormat, GLuint clientVersion)
1320{
1321 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1322 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1323 {
1324 return internalFormatInfo.mType;
1325 }
1326 else
1327 {
1328 UNREACHABLE();
1329 return GL_NONE;
1330 }
1331}
1332
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]1333GLuint GetComponentType(GLint internalFormat, GLuint clientVersion)
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]1334{
1335 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1336 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]1337 {
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]1338 return internalFormatInfo.mComponentType;
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]1339 }
1340 else
1341 {
1342 UNREACHABLE();
1343 return false;
1344 }
1345}
1346
Jamie Madill3466a4d2013-09-18 14:36:20 -0400[diff] [blame]1347GLuint GetComponentCount(GLint internalFormat, GLuint clientVersion)
1348{
1349 InternalFormatInfo internalFormatInfo;
1350 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
1351 {
1352 return internalFormatInfo.mComponentCount;
1353 }
1354 else
1355 {
1356 UNREACHABLE();
1357 return false;
1358 }
1359}
1360
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]1361GLenum GetColorEncoding(GLint internalFormat, GLuint clientVersion)
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]1362{
1363 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1364 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]1365 {
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]1366 return internalFormatInfo.mColorEncoding;
shannonwoods@chromium.orge81ea502013-05-30 00:16:53 +0000[diff] [blame]1367 }
1368 else
1369 {
1370 UNREACHABLE();
1371 return false;
1372 }
1373}
1374
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1375bool IsColorRenderingSupported(GLint internalFormat, const rx::Renderer *renderer)
1376{
1377 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1378 if (renderer && GetInternalFormatInfo(internalFormat, renderer->getCurrentClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1379 {
1380 return internalFormatInfo.mIsColorRenderable(NULL, renderer);
1381 }
1382 else
1383 {
1384 UNREACHABLE();
1385 return false;
1386 }
1387}
1388
1389bool IsColorRenderingSupported(GLint internalFormat, const Context *context)
1390{
1391 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1392 if (context && GetInternalFormatInfo(internalFormat, context->getClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1393 {
1394 return internalFormatInfo.mIsColorRenderable(context, NULL);
1395 }
1396 else
1397 {
1398 UNREACHABLE();
1399 return false;
1400 }
1401}
1402
1403bool IsTextureFilteringSupported(GLint internalFormat, const rx::Renderer *renderer)
1404{
1405 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1406 if (renderer && GetInternalFormatInfo(internalFormat, renderer->getCurrentClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1407 {
1408 return internalFormatInfo.mIsTextureFilterable(NULL, renderer);
1409 }
1410 else
1411 {
1412 UNREACHABLE();
1413 return false;
1414 }
1415}
1416
1417bool IsTextureFilteringSupported(GLint internalFormat, const Context *context)
1418{
1419 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1420 if (context && GetInternalFormatInfo(internalFormat, context->getClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1421 {
1422 return internalFormatInfo.mIsTextureFilterable(context, NULL);
1423 }
1424 else
1425 {
1426 UNREACHABLE();
1427 return false;
1428 }
1429}
1430
1431bool IsDepthRenderingSupported(GLint internalFormat, const rx::Renderer *renderer)
1432{
1433 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1434 if (renderer && GetInternalFormatInfo(internalFormat, renderer->getCurrentClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1435 {
1436 return internalFormatInfo.mIsDepthRenderable(NULL, renderer);
1437 }
1438 else
1439 {
1440 UNREACHABLE();
1441 return false;
1442 }
1443}
1444
1445bool IsDepthRenderingSupported(GLint internalFormat, const Context *context)
1446{
1447 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1448 if (context && GetInternalFormatInfo(internalFormat, context->getClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1449 {
1450 return internalFormatInfo.mIsDepthRenderable(context, NULL);
1451 }
1452 else
1453 {
1454 UNREACHABLE();
1455 return false;
1456 }
1457}
1458
1459bool IsStencilRenderingSupported(GLint internalFormat, const rx::Renderer *renderer)
1460{
1461 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1462 if (renderer && GetInternalFormatInfo(internalFormat, renderer->getCurrentClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1463 {
1464 return internalFormatInfo.mIsStencilRenderable(NULL, renderer);
1465 }
1466 else
1467 {
1468 UNREACHABLE();
1469 return false;
1470 }
1471}
1472
1473bool IsStencilRenderingSupported(GLint internalFormat, const Context *context)
1474{
1475 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1476 if (context && GetInternalFormatInfo(internalFormat, context->getClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1477 {
1478 return internalFormatInfo.mIsStencilRenderable(context, NULL);
1479 }
1480 else
1481 {
1482 UNREACHABLE();
1483 return false;
1484 }
1485}
1486
1487GLuint GetRowPitch(GLint internalFormat, GLenum type, GLuint clientVersion, GLsizei width, GLint alignment)
1488{
1489 ASSERT(alignment > 0 && isPow2(alignment));
1490 return (GetBlockSize(internalFormat, type, clientVersion, width, 1) + alignment - 1) & ~(alignment - 1);
1491}
1492
1493GLuint GetDepthPitch(GLint internalFormat, GLenum type, GLuint clientVersion, GLsizei width, GLsizei height, GLint alignment)
1494{
Jamie Madill666e2862013-09-10 12:04:29 -0400[diff] [blame]1495 return GetRowPitch(internalFormat, type, clientVersion, width, alignment) * height;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1496}
1497
1498GLuint GetBlockSize(GLint internalFormat, GLenum type, GLuint clientVersion, GLsizei width, GLsizei height)
1499{
1500 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1501 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1502 {
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]1503 if (internalFormatInfo.mIsCompressed)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1504 {
1505 GLsizei numBlocksWide = (width + internalFormatInfo.mCompressedBlockWidth - 1) / internalFormatInfo.mCompressedBlockWidth;
1506 GLsizei numBlocksHight = (height + internalFormatInfo.mCompressedBlockHeight - 1) / internalFormatInfo.mCompressedBlockHeight;
1507
1508 return (internalFormatInfo.mPixelBits * numBlocksWide * numBlocksHight) / 8;
1509 }
1510 else
1511 {
1512 TypeInfo typeInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1513 if (GetTypeInfo(type, &typeInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1514 {
1515 if (typeInfo.mSpecialInterpretation)
1516 {
1517 return typeInfo.mTypeBytes * width * height;
1518 }
1519 else
1520 {
1521 return internalFormatInfo.mComponentCount * typeInfo.mTypeBytes * width * height;
1522 }
1523 }
1524 else
1525 {
1526 UNREACHABLE();
1527 return 0;
1528 }
1529 }
1530 }
1531 else
1532 {
1533 UNREACHABLE();
1534 return 0;
1535 }
1536}
1537
1538bool IsFormatCompressed(GLint internalFormat, GLuint clientVersion)
1539{
1540 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1541 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1542 {
Geoff Langb2f3d052013-08-13 12:49:27 -0400[diff] [blame]1543 return internalFormatInfo.mIsCompressed;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1544 }
1545 else
1546 {
1547 UNREACHABLE();
1548 return false;
1549 }
1550}
1551
1552GLuint GetCompressedBlockWidth(GLint internalFormat, GLuint clientVersion)
1553{
1554 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1555 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1556 {
1557 return internalFormatInfo.mCompressedBlockWidth;
1558 }
1559 else
1560 {
1561 UNREACHABLE();
1562 return 0;
1563 }
1564}
1565
1566GLuint GetCompressedBlockHeight(GLint internalFormat, GLuint clientVersion)
1567{
1568 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1569 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1570 {
1571 return internalFormatInfo.mCompressedBlockHeight;
1572 }
1573 else
1574 {
1575 UNREACHABLE();
1576 return 0;
1577 }
1578}
1579
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]1580ColorWriteFunction GetColorWriteFunction(GLenum format, GLenum type, GLuint clientVersion)
1581{
1582 static const FormatMap &formats = GetFormatMap(clientVersion);
1583 FormatMap::const_iterator iter = formats.find(FormatTypePair(format, type));
1584 return (iter != formats.end()) ? iter->second.mColorWriteFunction : NULL;
1585}
1586
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1587}