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gerrit-public.fairphone.software / platform / external / angle / 9e73b21010fa77f2ecbff28da242a6e00da946fa / . / src / libGLESv2 / formatutils.cpp
blob: eea397b3dab156a3702d82d7f30345dbf372ec13 [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> );
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]112
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]113 InsertFormatMapping(&map, GL_RGB, GL_UNSIGNED_BYTE, GL_RGB8, WriteColor<R8G8B8, GLfloat> );
114 InsertFormatMapping(&map, GL_RGB, GL_BYTE, GL_RGB8_SNORM, WriteColor<R8G8B8S, GLfloat> );
115 InsertFormatMapping(&map, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, GL_RGB565, WriteColor<R5G6B5, GLfloat> );
116 InsertFormatMapping(&map, GL_RGB, GL_UNSIGNED_INT_10F_11F_11F_REV, GL_R11F_G11F_B10F, WriteColor<R11G11B10F, GLfloat> );
117 InsertFormatMapping(&map, GL_RGB, GL_UNSIGNED_INT_5_9_9_9_REV, GL_RGB9_E5, WriteColor<R9G9B9E5, GLfloat> );
118 InsertFormatMapping(&map, GL_RGB, GL_FLOAT, GL_RGB32F, WriteColor<R32G32B32F, GLfloat> );
119 InsertFormatMapping(&map, GL_RGB, GL_HALF_FLOAT, GL_RGB16F, WriteColor<R16G16B16F, GLfloat> );
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]120
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]121 InsertFormatMapping(&map, GL_RGB_INTEGER, GL_UNSIGNED_BYTE, GL_RGB8UI, WriteColor<R8G8B8, GLuint> );
122 InsertFormatMapping(&map, GL_RGB_INTEGER, GL_BYTE, GL_RGB8I, WriteColor<R8G8B8S, GLint> );
123 InsertFormatMapping(&map, GL_RGB_INTEGER, GL_UNSIGNED_SHORT, GL_RGB16UI, WriteColor<R16G16B16, GLuint> );
124 InsertFormatMapping(&map, GL_RGB_INTEGER, GL_SHORT, GL_RGB16I, WriteColor<R16G16B16S, GLint> );
125 InsertFormatMapping(&map, GL_RGB_INTEGER, GL_UNSIGNED_INT, GL_RGB32UI, WriteColor<R32G32B32, GLuint> );
126 InsertFormatMapping(&map, GL_RGB_INTEGER, GL_INT, GL_RGB32I, WriteColor<R32G32B32S, GLint> );
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]127
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]128 InsertFormatMapping(&map, GL_RG, GL_UNSIGNED_BYTE, GL_RG8, WriteColor<R8G8, GLfloat> );
129 InsertFormatMapping(&map, GL_RG, GL_BYTE, GL_RG8_SNORM, WriteColor<R8G8S, GLfloat> );
130 InsertFormatMapping(&map, GL_RG, GL_FLOAT, GL_RG32F, WriteColor<R32G32F, GLfloat> );
131 InsertFormatMapping(&map, GL_RG, GL_HALF_FLOAT, GL_RG16F, WriteColor<R16G16F, GLfloat> );
132
133 InsertFormatMapping(&map, GL_RG_INTEGER, GL_UNSIGNED_BYTE, GL_RG8UI, WriteColor<R8G8, GLuint> );
134 InsertFormatMapping(&map, GL_RG_INTEGER, GL_BYTE, GL_RG8I, WriteColor<R8G8S, GLint> );
135 InsertFormatMapping(&map, GL_RG_INTEGER, GL_UNSIGNED_SHORT, GL_RG16UI, WriteColor<R16G16, GLuint> );
136 InsertFormatMapping(&map, GL_RG_INTEGER, GL_SHORT, GL_RG16I, WriteColor<R16G16S, GLint> );
137 InsertFormatMapping(&map, GL_RG_INTEGER, GL_UNSIGNED_INT, GL_RG32UI, WriteColor<R32G32, GLuint> );
138 InsertFormatMapping(&map, GL_RG_INTEGER, GL_INT, GL_RG32I, WriteColor<R32G32S, GLint> );
139
140 InsertFormatMapping(&map, GL_RED, GL_UNSIGNED_BYTE, GL_R8, WriteColor<R8, GLfloat> );
141 InsertFormatMapping(&map, GL_RED, GL_BYTE, GL_R8_SNORM, WriteColor<R8S, GLfloat> );
142 InsertFormatMapping(&map, GL_RED, GL_FLOAT, GL_R32F, WriteColor<R32F, GLfloat> );
143 InsertFormatMapping(&map, GL_RED, GL_HALF_FLOAT, GL_R16F, WriteColor<R16F, GLfloat> );
144
145 InsertFormatMapping(&map, GL_RED_INTEGER, GL_UNSIGNED_BYTE, GL_R8UI, WriteColor<R8, GLuint> );
146 InsertFormatMapping(&map, GL_RED_INTEGER, GL_BYTE, GL_R8I, WriteColor<R8S, GLint> );
147 InsertFormatMapping(&map, GL_RED_INTEGER, GL_UNSIGNED_SHORT, GL_R16UI, WriteColor<R16, GLuint> );
148 InsertFormatMapping(&map, GL_RED_INTEGER, GL_SHORT, GL_R16I, WriteColor<R16S, GLint> );
149 InsertFormatMapping(&map, GL_RED_INTEGER, GL_UNSIGNED_INT, GL_R32UI, WriteColor<R32, GLuint> );
150 InsertFormatMapping(&map, GL_RED_INTEGER, GL_INT, GL_R32I, WriteColor<R32S, GLint> );
151
152 InsertFormatMapping(&map, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, GL_LUMINANCE8_ALPHA8_EXT, WriteColor<L8A8, GLfloat> );
153 InsertFormatMapping(&map, GL_LUMINANCE, GL_UNSIGNED_BYTE, GL_LUMINANCE8_EXT, WriteColor<L8, GLfloat> );
154 InsertFormatMapping(&map, GL_ALPHA, GL_UNSIGNED_BYTE, GL_ALPHA8_EXT, WriteColor<A8, GLfloat> );
155 InsertFormatMapping(&map, GL_LUMINANCE_ALPHA, GL_FLOAT, GL_LUMINANCE_ALPHA32F_EXT, WriteColor<L32A32F, GLfloat> );
156 InsertFormatMapping(&map, GL_LUMINANCE, GL_FLOAT, GL_LUMINANCE32F_EXT, WriteColor<L32F, GLfloat> );
157 InsertFormatMapping(&map, GL_ALPHA, GL_FLOAT, GL_ALPHA32F_EXT, WriteColor<A32F, GLfloat> );
158 InsertFormatMapping(&map, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT, GL_LUMINANCE_ALPHA16F_EXT, WriteColor<L16A16F, GLfloat> );
159 InsertFormatMapping(&map, GL_LUMINANCE, GL_HALF_FLOAT, GL_LUMINANCE16F_EXT, WriteColor<L16F, GLfloat> );
160 InsertFormatMapping(&map, GL_ALPHA, GL_HALF_FLOAT, GL_ALPHA16F_EXT, WriteColor<A16F, GLfloat> );
161
162 InsertFormatMapping(&map, GL_BGRA_EXT, GL_UNSIGNED_BYTE, GL_BGRA8_EXT, WriteColor<B8G8R8A8, GLfloat> );
163 InsertFormatMapping(&map, GL_BGRA_EXT, GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT, GL_BGRA4_ANGLEX, WriteColor<B4G4R4A4, GLfloat> );
164 InsertFormatMapping(&map, GL_BGRA_EXT, GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT, GL_BGR5_A1_ANGLEX, WriteColor<B5G5R5A1, GLfloat> );
165
166 InsertFormatMapping(&map, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, GL_DEPTH_COMPONENT16, NULL );
167 InsertFormatMapping(&map, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, GL_DEPTH_COMPONENT24, NULL );
168 InsertFormatMapping(&map, GL_DEPTH_COMPONENT, GL_FLOAT, GL_DEPTH_COMPONENT32F, NULL );
169
170 InsertFormatMapping(&map, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, GL_DEPTH24_STENCIL8, NULL );
171 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]172
173 return map;
174}
175
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]176static const FormatMap &GetFormatMap(GLuint clientVersion)
177{
178 if (clientVersion == 2)
179 {
180 static const FormatMap formats = BuildES2FormatMap();
181 return formats;
182 }
183 else if (clientVersion == 3)
184 {
185 static const FormatMap formats = BuildES3FormatMap();
186 return formats;
187 }
188 else
189 {
190 UNREACHABLE();
191 static FormatMap emptyMap;
192 return emptyMap;
193 }
194}
195
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]196struct FormatInfo
197{
198 GLint mInternalformat;
199 GLenum mFormat;
200 GLenum mType;
201
202 FormatInfo(GLint internalformat, GLenum format, GLenum type)
203 : mInternalformat(internalformat), mFormat(format), mType(type) { }
204
205 bool operator<(const FormatInfo& other) const
206 {
207 return memcmp(this, &other, sizeof(FormatInfo)) < 0;
208 }
209};
210
211// ES3 has a specific set of permutations of internal formats, formats and types which are acceptable.
212typedef std::set<FormatInfo> ES3FormatSet;
213
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]214ES3FormatSet BuildES3FormatSet()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]215{
216 ES3FormatSet set;
217
218 // Format combinations from ES 3.0.1 spec, table 3.2
219
220 // | Internal format | Format | Type |
221 // | | | |
222 set.insert(FormatInfo(GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE ));
223 set.insert(FormatInfo(GL_RGB5_A1, GL_RGBA, GL_UNSIGNED_BYTE ));
224 set.insert(FormatInfo(GL_RGBA4, GL_RGBA, GL_UNSIGNED_BYTE ));
225 set.insert(FormatInfo(GL_SRGB8_ALPHA8, GL_RGBA, GL_UNSIGNED_BYTE ));
226 set.insert(FormatInfo(GL_RGBA8_SNORM, GL_RGBA, GL_BYTE ));
227 set.insert(FormatInfo(GL_RGBA4, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4 ));
228 set.insert(FormatInfo(GL_RGB10_A2, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV ));
229 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]230 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]231 set.insert(FormatInfo(GL_RGBA16F, GL_RGBA, GL_HALF_FLOAT ));
232 set.insert(FormatInfo(GL_RGBA32F, GL_RGBA, GL_FLOAT ));
233 set.insert(FormatInfo(GL_RGBA16F, GL_RGBA, GL_FLOAT ));
234 set.insert(FormatInfo(GL_RGBA8UI, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE ));
235 set.insert(FormatInfo(GL_RGBA8I, GL_RGBA_INTEGER, GL_BYTE ));
236 set.insert(FormatInfo(GL_RGBA16UI, GL_RGBA_INTEGER, GL_UNSIGNED_SHORT ));
237 set.insert(FormatInfo(GL_RGBA16I, GL_RGBA_INTEGER, GL_SHORT ));
238 set.insert(FormatInfo(GL_RGBA32UI, GL_RGBA_INTEGER, GL_UNSIGNED_INT ));
239 set.insert(FormatInfo(GL_RGBA32I, GL_RGBA_INTEGER, GL_INT ));
240 set.insert(FormatInfo(GL_RGB10_A2UI, GL_RGBA_INTEGER, GL_UNSIGNED_INT_2_10_10_10_REV ));
241 set.insert(FormatInfo(GL_RGB8, GL_RGB, GL_UNSIGNED_BYTE ));
242 set.insert(FormatInfo(GL_RGB565, GL_RGB, GL_UNSIGNED_BYTE ));
243 set.insert(FormatInfo(GL_SRGB8, GL_RGB, GL_UNSIGNED_BYTE ));
244 set.insert(FormatInfo(GL_RGB8_SNORM, GL_RGB, GL_BYTE ));
245 set.insert(FormatInfo(GL_RGB565, GL_RGB, GL_UNSIGNED_SHORT_5_6_5 ));
246 set.insert(FormatInfo(GL_R11F_G11F_B10F, GL_RGB, GL_UNSIGNED_INT_10F_11F_11F_REV ));
247 set.insert(FormatInfo(GL_RGB9_E5, GL_RGB, GL_UNSIGNED_INT_5_9_9_9_REV ));
248 set.insert(FormatInfo(GL_RGB16F, GL_RGB, GL_HALF_FLOAT ));
249 set.insert(FormatInfo(GL_R11F_G11F_B10F, GL_RGB, GL_HALF_FLOAT ));
250 set.insert(FormatInfo(GL_RGB9_E5, GL_RGB, GL_HALF_FLOAT ));
251 set.insert(FormatInfo(GL_RGB32F, GL_RGB, GL_FLOAT ));
252 set.insert(FormatInfo(GL_RGB16F, GL_RGB, GL_FLOAT ));
253 set.insert(FormatInfo(GL_R11F_G11F_B10F, GL_RGB, GL_FLOAT ));
254 set.insert(FormatInfo(GL_RGB9_E5, GL_RGB, GL_FLOAT ));
255 set.insert(FormatInfo(GL_RGB8UI, GL_RGB_INTEGER, GL_UNSIGNED_BYTE ));
256 set.insert(FormatInfo(GL_RGB8I, GL_RGB_INTEGER, GL_BYTE ));
257 set.insert(FormatInfo(GL_RGB16UI, GL_RGB_INTEGER, GL_UNSIGNED_SHORT ));
258 set.insert(FormatInfo(GL_RGB16I, GL_RGB_INTEGER, GL_SHORT ));
259 set.insert(FormatInfo(GL_RGB32UI, GL_RGB_INTEGER, GL_UNSIGNED_INT ));
260 set.insert(FormatInfo(GL_RGB32I, GL_RGB_INTEGER, GL_INT ));
261 set.insert(FormatInfo(GL_RG8, GL_RG, GL_UNSIGNED_BYTE ));
262 set.insert(FormatInfo(GL_RG8_SNORM, GL_RG, GL_BYTE ));
263 set.insert(FormatInfo(GL_RG16F, GL_RG, GL_HALF_FLOAT ));
264 set.insert(FormatInfo(GL_RG32F, GL_RG, GL_FLOAT ));
265 set.insert(FormatInfo(GL_RG16F, GL_RG, GL_FLOAT ));
266 set.insert(FormatInfo(GL_RG8UI, GL_RG_INTEGER, GL_UNSIGNED_BYTE ));
267 set.insert(FormatInfo(GL_RG8I, GL_RG_INTEGER, GL_BYTE ));
268 set.insert(FormatInfo(GL_RG16UI, GL_RG_INTEGER, GL_UNSIGNED_SHORT ));
269 set.insert(FormatInfo(GL_RG16I, GL_RG_INTEGER, GL_SHORT ));
270 set.insert(FormatInfo(GL_RG32UI, GL_RG_INTEGER, GL_UNSIGNED_INT ));
271 set.insert(FormatInfo(GL_RG32I, GL_RG_INTEGER, GL_INT ));
272 set.insert(FormatInfo(GL_R8, GL_RED, GL_UNSIGNED_BYTE ));
273 set.insert(FormatInfo(GL_R8_SNORM, GL_RED, GL_BYTE ));
274 set.insert(FormatInfo(GL_R16F, GL_RED, GL_HALF_FLOAT ));
275 set.insert(FormatInfo(GL_R32F, GL_RED, GL_FLOAT ));
276 set.insert(FormatInfo(GL_R16F, GL_RED, GL_FLOAT ));
277 set.insert(FormatInfo(GL_R8UI, GL_RED_INTEGER, GL_UNSIGNED_BYTE ));
278 set.insert(FormatInfo(GL_R8I, GL_RED_INTEGER, GL_BYTE ));
279 set.insert(FormatInfo(GL_R16UI, GL_RED_INTEGER, GL_UNSIGNED_SHORT ));
280 set.insert(FormatInfo(GL_R16I, GL_RED_INTEGER, GL_SHORT ));
281 set.insert(FormatInfo(GL_R32UI, GL_RED_INTEGER, GL_UNSIGNED_INT ));
282 set.insert(FormatInfo(GL_R32I, GL_RED_INTEGER, GL_INT ));
283
284 // Unsized formats
285 set.insert(FormatInfo(GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE ));
286 set.insert(FormatInfo(GL_RGBA, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4 ));
287 set.insert(FormatInfo(GL_RGBA, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1 ));
288 set.insert(FormatInfo(GL_RGB, GL_RGB, GL_UNSIGNED_BYTE ));
289 set.insert(FormatInfo(GL_RGB, GL_RGB, GL_UNSIGNED_SHORT_5_6_5 ));
290 set.insert(FormatInfo(GL_LUMINANCE_ALPHA, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE ));
291 set.insert(FormatInfo(GL_LUMINANCE, GL_LUMINANCE, GL_UNSIGNED_BYTE ));
292 set.insert(FormatInfo(GL_ALPHA, GL_ALPHA, GL_UNSIGNED_BYTE ));
293
294 // Depth stencil formats
295 set.insert(FormatInfo(GL_DEPTH_COMPONENT16, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT ));
296 set.insert(FormatInfo(GL_DEPTH_COMPONENT24, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT ));
297 set.insert(FormatInfo(GL_DEPTH_COMPONENT16, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT ));
298 set.insert(FormatInfo(GL_DEPTH_COMPONENT32F, GL_DEPTH_COMPONENT, GL_FLOAT ));
299 set.insert(FormatInfo(GL_DEPTH24_STENCIL8, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8 ));
300 set.insert(FormatInfo(GL_DEPTH32F_STENCIL8, GL_DEPTH_STENCIL, GL_FLOAT_32_UNSIGNED_INT_24_8_REV));
301
302 // From GL_OES_texture_float
303 set.insert(FormatInfo(GL_LUMINANCE_ALPHA, GL_LUMINANCE_ALPHA, GL_FLOAT ));
304 set.insert(FormatInfo(GL_LUMINANCE, GL_LUMINANCE, GL_FLOAT ));
305 set.insert(FormatInfo(GL_ALPHA, GL_ALPHA, GL_FLOAT ));
306
307 // From GL_OES_texture_half_float
308 set.insert(FormatInfo(GL_LUMINANCE_ALPHA, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT ));
309 set.insert(FormatInfo(GL_LUMINANCE, GL_LUMINANCE, GL_HALF_FLOAT ));
310 set.insert(FormatInfo(GL_ALPHA, GL_ALPHA, GL_HALF_FLOAT ));
311
312 // From GL_EXT_texture_storage
313 // | Internal format | Format | Type |
314 // | | | |
315 set.insert(FormatInfo(GL_ALPHA8_EXT, GL_ALPHA, GL_UNSIGNED_BYTE ));
316 set.insert(FormatInfo(GL_LUMINANCE8_EXT, GL_LUMINANCE, GL_UNSIGNED_BYTE ));
317 set.insert(FormatInfo(GL_LUMINANCE8_ALPHA8_EXT, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE ));
318 set.insert(FormatInfo(GL_ALPHA32F_EXT, GL_ALPHA, GL_FLOAT ));
319 set.insert(FormatInfo(GL_LUMINANCE32F_EXT, GL_LUMINANCE, GL_FLOAT ));
320 set.insert(FormatInfo(GL_LUMINANCE_ALPHA32F_EXT, GL_LUMINANCE_ALPHA, GL_FLOAT ));
321 set.insert(FormatInfo(GL_ALPHA16F_EXT, GL_ALPHA, GL_HALF_FLOAT ));
322 set.insert(FormatInfo(GL_LUMINANCE16F_EXT, GL_LUMINANCE, GL_HALF_FLOAT ));
323 set.insert(FormatInfo(GL_LUMINANCE_ALPHA16F_EXT, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT ));
324
325 set.insert(FormatInfo(GL_BGRA8_EXT, GL_BGRA_EXT, GL_UNSIGNED_BYTE ));
326 set.insert(FormatInfo(GL_BGRA4_ANGLEX, GL_BGRA_EXT, GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT));
327 set.insert(FormatInfo(GL_BGRA4_ANGLEX, GL_BGRA_EXT, GL_UNSIGNED_BYTE ));
328 set.insert(FormatInfo(GL_BGR5_A1_ANGLEX, GL_BGRA_EXT, GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT));
329 set.insert(FormatInfo(GL_BGR5_A1_ANGLEX, GL_BGRA_EXT, GL_UNSIGNED_BYTE ));
330
331 // From GL_ANGLE_depth_texture
332 set.insert(FormatInfo(GL_DEPTH_COMPONENT32_OES, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT_24_8_OES ));
333
334 // Compressed formats
335 // From ES 3.0.1 spec, table 3.16
336 // | Internal format | Format | Type |
337 // | | | |
338 set.insert(FormatInfo(GL_COMPRESSED_R11_EAC, GL_COMPRESSED_R11_EAC, GL_UNSIGNED_BYTE));
339 set.insert(FormatInfo(GL_COMPRESSED_R11_EAC, GL_COMPRESSED_R11_EAC, GL_UNSIGNED_BYTE));
340 set.insert(FormatInfo(GL_COMPRESSED_SIGNED_R11_EAC, GL_COMPRESSED_SIGNED_R11_EAC, GL_UNSIGNED_BYTE));
341 set.insert(FormatInfo(GL_COMPRESSED_RG11_EAC, GL_COMPRESSED_RG11_EAC, GL_UNSIGNED_BYTE));
342 set.insert(FormatInfo(GL_COMPRESSED_SIGNED_RG11_EAC, GL_COMPRESSED_SIGNED_RG11_EAC, GL_UNSIGNED_BYTE));
343 set.insert(FormatInfo(GL_COMPRESSED_RGB8_ETC2, GL_COMPRESSED_RGB8_ETC2, GL_UNSIGNED_BYTE));
344 set.insert(FormatInfo(GL_COMPRESSED_SRGB8_ETC2, GL_COMPRESSED_SRGB8_ETC2, GL_UNSIGNED_BYTE));
345 set.insert(FormatInfo(GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_UNSIGNED_BYTE));
346 set.insert(FormatInfo(GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_UNSIGNED_BYTE));
347 set.insert(FormatInfo(GL_COMPRESSED_RGBA8_ETC2_EAC, GL_COMPRESSED_RGBA8_ETC2_EAC, GL_UNSIGNED_BYTE));
348 set.insert(FormatInfo(GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC, GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC, GL_UNSIGNED_BYTE));
349
350
351 // From GL_EXT_texture_compression_dxt1
352 set.insert(FormatInfo(GL_COMPRESSED_RGB_S3TC_DXT1_EXT, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE));
353 set.insert(FormatInfo(GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE));
354
355 // From GL_ANGLE_texture_compression_dxt3
356 set.insert(FormatInfo(GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, GL_UNSIGNED_BYTE));
357
358 // From GL_ANGLE_texture_compression_dxt5
359 set.insert(FormatInfo(GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, GL_UNSIGNED_BYTE));
360
361 return set;
362}
363
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]364static const ES3FormatSet &GetES3FormatSet()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]365{
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]366 static const ES3FormatSet es3FormatSet = BuildES3FormatSet();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]367 return es3FormatSet;
368}
369
370// Map of sizes of input types
371struct TypeInfo
372{
373 GLuint mTypeBytes;
374 bool mSpecialInterpretation;
375
376 TypeInfo()
377 : mTypeBytes(0), mSpecialInterpretation(false) { }
378
379 TypeInfo(GLuint typeBytes, bool specialInterpretation)
380 : mTypeBytes(typeBytes), mSpecialInterpretation(specialInterpretation) { }
381
382 bool operator<(const TypeInfo& other) const
383 {
384 return memcmp(this, &other, sizeof(TypeInfo)) < 0;
385 }
386};
387
388typedef std::pair<GLenum, TypeInfo> TypeInfoPair;
389typedef std::map<GLenum, TypeInfo> TypeInfoMap;
390
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]391static TypeInfoMap BuildTypeInfoMap()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]392{
393 TypeInfoMap map;
394
395 map.insert(TypeInfoPair(GL_UNSIGNED_BYTE, TypeInfo( 1, false)));
396 map.insert(TypeInfoPair(GL_BYTE, TypeInfo( 1, false)));
397 map.insert(TypeInfoPair(GL_UNSIGNED_SHORT, TypeInfo( 2, false)));
398 map.insert(TypeInfoPair(GL_SHORT, TypeInfo( 2, false)));
399 map.insert(TypeInfoPair(GL_UNSIGNED_INT, TypeInfo( 4, false)));
400 map.insert(TypeInfoPair(GL_INT, TypeInfo( 4, false)));
401 map.insert(TypeInfoPair(GL_HALF_FLOAT, TypeInfo( 2, false)));
402 map.insert(TypeInfoPair(GL_FLOAT, TypeInfo( 4, false)));
403 map.insert(TypeInfoPair(GL_UNSIGNED_SHORT_5_6_5, TypeInfo( 2, true )));
404 map.insert(TypeInfoPair(GL_UNSIGNED_SHORT_4_4_4_4, TypeInfo( 2, true )));
405 map.insert(TypeInfoPair(GL_UNSIGNED_SHORT_5_5_5_1, TypeInfo( 2, true )));
406 map.insert(TypeInfoPair(GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT, TypeInfo( 2, true )));
407 map.insert(TypeInfoPair(GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT, TypeInfo( 2, true )));
408 map.insert(TypeInfoPair(GL_UNSIGNED_INT_2_10_10_10_REV, TypeInfo( 4, true )));
409 map.insert(TypeInfoPair(GL_UNSIGNED_INT_24_8, TypeInfo( 4, true )));
410 map.insert(TypeInfoPair(GL_UNSIGNED_INT_10F_11F_11F_REV, TypeInfo( 4, true )));
411 map.insert(TypeInfoPair(GL_UNSIGNED_INT_5_9_9_9_REV, TypeInfo( 4, true )));
412 map.insert(TypeInfoPair(GL_FLOAT_32_UNSIGNED_INT_24_8_REV, TypeInfo( 4, true )));
413 map.insert(TypeInfoPair(GL_UNSIGNED_INT_24_8_OES, TypeInfo( 4, true )));
414
415 return map;
416}
417
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]418static bool GetTypeInfo(GLenum type, TypeInfo *outTypeInfo)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]419{
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]420 static const TypeInfoMap infoMap = BuildTypeInfoMap();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]421 TypeInfoMap::const_iterator iter = infoMap.find(type);
422 if (iter != infoMap.end())
423 {
424 if (outTypeInfo)
425 {
426 *outTypeInfo = iter->second;
427 }
428 return true;
429 }
430 else
431 {
432 return false;
433 }
434}
435
436// Information about internal formats
437typedef bool ((Context::*ContextSupportCheckMemberFunction)(void) const);
438typedef bool (*ContextSupportCheckFunction)(const Context *context);
439
440typedef bool ((rx::Renderer::*RendererSupportCheckMemberFunction)(void) const);
441typedef bool (*ContextRendererSupportCheckFunction)(const Context *context, const rx::Renderer *renderer);
442
443template <ContextSupportCheckMemberFunction func>
444bool CheckSupport(const Context *context)
445{
446 return (context->*func)();
447}
448
449template <ContextSupportCheckMemberFunction contextFunc, RendererSupportCheckMemberFunction rendererFunc>
450bool CheckSupport(const Context *context, const rx::Renderer *renderer)
451{
452 if (context)
453 {
454 return (context->*contextFunc)();
455 }
456 else if (renderer)
457 {
458 return (renderer->*rendererFunc)();
459 }
460 else
461 {
462 UNREACHABLE();
463 return false;
464 }
465}
466
467template <typename objectType>
468bool AlwaysSupported(const objectType*)
469{
470 return true;
471}
472
473template <typename objectTypeA, typename objectTypeB>
474bool AlwaysSupported(const objectTypeA*, const objectTypeB*)
475{
476 return true;
477}
478
479template <typename objectType>
480bool NeverSupported(const objectType*)
481{
482 return false;
483}
484
485template <typename objectTypeA, typename objectTypeB>
486bool NeverSupported(const objectTypeA *, const objectTypeB *)
487{
488 return false;
489}
490
491template <typename objectType>
492bool UnimplementedSupport(const objectType*)
493{
494 UNIMPLEMENTED();
495 return false;
496}
497
498template <typename objectTypeA, typename objectTypeB>
499bool UnimplementedSupport(const objectTypeA*, const objectTypeB*)
500{
501 UNIMPLEMENTED();
502 return false;
503}
504
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]505enum InternalFormatStorageType
506{
507 Unknown,
508 NormalizedFixedPoint,
509 FloatingPoint,
510 SignedInteger,
511 UnsignedInteger,
512 Compressed,
513};
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]514
515struct InternalFormatInfo
516{
517 GLuint mRedBits;
518 GLuint mGreenBits;
519 GLuint mBlueBits;
520
521 GLuint mLuminanceBits;
522
523 GLuint mAlphaBits;
524 GLuint mSharedBits;
525
526 GLuint mDepthBits;
527 GLuint mStencilBits;
528
529 GLuint mPixelBits;
530
531 GLuint mComponentCount;
532
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]533 GLuint mCompressedBlockWidth;
534 GLuint mCompressedBlockHeight;
535
536 GLenum mFormat;
537 GLenum mType;
538
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]539 InternalFormatStorageType mStorageType;
540
shannonwoods@chromium.orge81ea502013-05-30 00:16:53 +0000[diff] [blame]541 bool mIsSRGB;
542
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]543 ContextRendererSupportCheckFunction mIsColorRenderable;
544 ContextRendererSupportCheckFunction mIsDepthRenderable;
545 ContextRendererSupportCheckFunction mIsStencilRenderable;
546 ContextRendererSupportCheckFunction mIsTextureFilterable;
547
548 ContextSupportCheckFunction mSupportFunction;
549
550 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]551 mPixelBits(0), mComponentCount(0), mCompressedBlockWidth(0), mCompressedBlockHeight(0), mFormat(GL_NONE), mType(GL_NONE),
shannonwoods@chromium.orge81ea502013-05-30 00:16:53 +0000[diff] [blame]552 mStorageType(Unknown), mIsSRGB(false), mIsColorRenderable(NeverSupported), mIsDepthRenderable(NeverSupported), mIsStencilRenderable(NeverSupported),
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]553 mIsTextureFilterable(NeverSupported), mSupportFunction(NeverSupported)
554 {
555 }
556
557 static InternalFormatInfo UnsizedFormat(GLenum format, ContextSupportCheckFunction supportFunction)
558 {
559 InternalFormatInfo formatInfo;
560 formatInfo.mFormat = format;
561 formatInfo.mSupportFunction = supportFunction;
Shannon Woods9e73b212013-07-08 10:32:19 -0400[diff] [blame^]562
563 if (format == GL_RGB || format == GL_RGBA)
564 formatInfo.mIsColorRenderable = AlwaysSupported;
565
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]566 return formatInfo;
567 }
568
569 static InternalFormatInfo RGBAFormat(GLuint red, GLuint green, GLuint blue, GLuint alpha, GLuint shared,
shannonwoods@chromium.orge81ea502013-05-30 00:16:53 +0000[diff] [blame]570 GLenum format, GLenum type, InternalFormatStorageType storageType, bool srgb,
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]571 ContextRendererSupportCheckFunction colorRenderable,
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]572 ContextRendererSupportCheckFunction textureFilterable,
573 ContextSupportCheckFunction supportFunction)
574 {
575 InternalFormatInfo formatInfo;
576 formatInfo.mRedBits = red;
577 formatInfo.mGreenBits = green;
578 formatInfo.mBlueBits = blue;
579 formatInfo.mAlphaBits = alpha;
580 formatInfo.mSharedBits = shared;
581 formatInfo.mPixelBits = red + green + blue + alpha + shared;
582 formatInfo.mComponentCount = ((red > 0) ? 1 : 0) + ((green > 0) ? 1 : 0) + ((blue > 0) ? 1 : 0) + ((alpha > 0) ? 1 : 0);
583 formatInfo.mFormat = format;
584 formatInfo.mType = type;
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]585 formatInfo.mStorageType = storageType;
shannonwoods@chromium.orge81ea502013-05-30 00:16:53 +0000[diff] [blame]586 formatInfo.mIsSRGB = srgb;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]587 formatInfo.mIsColorRenderable = colorRenderable;
588 formatInfo.mIsTextureFilterable = textureFilterable;
589 formatInfo.mSupportFunction = supportFunction;
590 return formatInfo;
591 }
592
593 static InternalFormatInfo LUMAFormat(GLuint luminance, GLuint alpha, GLenum format, GLenum type,
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]594 InternalFormatStorageType storageType,
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]595 ContextSupportCheckFunction supportFunction)
596 {
597 InternalFormatInfo formatInfo;
598 formatInfo.mLuminanceBits = luminance;
599 formatInfo.mAlphaBits = alpha;
600 formatInfo.mPixelBits = luminance + alpha;
601 formatInfo.mComponentCount = ((luminance > 0) ? 1 : 0) + ((alpha > 0) ? 1 : 0);
602 formatInfo.mFormat = format;
603 formatInfo.mType = type;
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]604 formatInfo.mStorageType = storageType;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]605 formatInfo.mIsTextureFilterable = AlwaysSupported;
606 formatInfo.mSupportFunction = supportFunction;
607 return formatInfo;
608 }
609
610 static InternalFormatInfo DepthStencilFormat(GLuint depth, GLuint stencil, GLenum format, GLenum type,
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]611 InternalFormatStorageType storageType,
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]612 ContextRendererSupportCheckFunction depthRenderable,
613 ContextRendererSupportCheckFunction stencilRenderable,
614 ContextSupportCheckFunction supportFunction)
615 {
616 InternalFormatInfo formatInfo;
617 formatInfo.mDepthBits = depth;
618 formatInfo.mStencilBits = stencil;
619 formatInfo.mPixelBits = depth + stencil;
620 formatInfo.mComponentCount = ((depth > 0) ? 1 : 0) + ((stencil > 0) ? 1 : 0);
621 formatInfo.mFormat = format;
622 formatInfo.mType = type;
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]623 formatInfo.mStorageType = storageType;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]624 formatInfo.mIsDepthRenderable = depthRenderable;
625 formatInfo.mIsStencilRenderable = stencilRenderable;
626 formatInfo.mSupportFunction = supportFunction;
627 return formatInfo;
628 }
629
630 static InternalFormatInfo CompressedFormat(GLuint compressedBlockWidth, GLuint compressedBlockHeight,
631 GLuint compressedBlockSize, GLuint componentCount, GLenum format, GLenum type,
632 ContextSupportCheckFunction supportFunction)
633 {
634 InternalFormatInfo formatInfo;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]635 formatInfo.mCompressedBlockWidth = compressedBlockWidth;
636 formatInfo.mCompressedBlockHeight = compressedBlockHeight;
637 formatInfo.mPixelBits = compressedBlockSize;
638 formatInfo.mComponentCount = componentCount;
639 formatInfo.mFormat = format;
640 formatInfo.mType = type;
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]641 formatInfo.mStorageType = Compressed;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]642 formatInfo.mIsTextureFilterable = AlwaysSupported;
643 formatInfo.mSupportFunction = supportFunction;
644 return formatInfo;
645 }
646};
647
648typedef std::pair<GLuint, InternalFormatInfo> InternalFormatInfoPair;
649typedef std::map<GLuint, InternalFormatInfo> InternalFormatInfoMap;
650
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]651static InternalFormatInfoMap BuildES3InternalFormatInfoMap()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]652{
653 InternalFormatInfoMap map;
654
655 // From ES 3.0.1 spec, table 3.12
656 map.insert(InternalFormatInfoPair(GL_NONE, InternalFormatInfo()));
657
shannonwoods@chromium.orge81ea502013-05-30 00:16:53 +0000[diff] [blame]658 // | Internal format | | R | G | B | A |S | Format | Type | Internal format | SRGB | Color | Texture | Supported |
659 // | | | | | | | | | | type | | renderable | filterable | |
660 map.insert(InternalFormatInfoPair(GL_R8, InternalFormatInfo::RGBAFormat( 8, 0, 0, 0, 0, GL_RED, GL_UNSIGNED_BYTE, NormalizedFixedPoint, false, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
661 map.insert(InternalFormatInfoPair(GL_R8_SNORM, InternalFormatInfo::RGBAFormat( 8, 0, 0, 0, 0, GL_RED, GL_BYTE, NormalizedFixedPoint, false, NeverSupported, AlwaysSupported, AlwaysSupported )));
662 map.insert(InternalFormatInfoPair(GL_RG8, InternalFormatInfo::RGBAFormat( 8, 8, 0, 0, 0, GL_RG, GL_UNSIGNED_BYTE, NormalizedFixedPoint, false, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
663 map.insert(InternalFormatInfoPair(GL_RG8_SNORM, InternalFormatInfo::RGBAFormat( 8, 8, 0, 0, 0, GL_RG, GL_BYTE, NormalizedFixedPoint, false, NeverSupported, AlwaysSupported, AlwaysSupported )));
664 map.insert(InternalFormatInfoPair(GL_RGB8, InternalFormatInfo::RGBAFormat( 8, 8, 8, 0, 0, GL_RGB, GL_UNSIGNED_BYTE, NormalizedFixedPoint, false, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
665 map.insert(InternalFormatInfoPair(GL_RGB8_SNORM, InternalFormatInfo::RGBAFormat( 8, 8, 8, 0, 0, GL_RGB, GL_BYTE, NormalizedFixedPoint, false, NeverSupported, AlwaysSupported, AlwaysSupported )));
Shannon Woods9e73b212013-07-08 10:32:19 -0400[diff] [blame^]666 map.insert(InternalFormatInfoPair(GL_RGB565, InternalFormatInfo::RGBAFormat( 5, 6, 5, 0, 0, GL_RGB, GL_UNSIGNED_SHORT_5_5_5_1, NormalizedFixedPoint, false, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
Geoff Lang74eb9152013-05-29 16:09:05 -0400[diff] [blame]667 map.insert(InternalFormatInfoPair(GL_RGBA4, InternalFormatInfo::RGBAFormat( 4, 4, 4, 4, 0, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, NormalizedFixedPoint, false, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
shannonwoods@chromium.orge81ea502013-05-30 00:16:53 +0000[diff] [blame]668 map.insert(InternalFormatInfoPair(GL_RGB5_A1, InternalFormatInfo::RGBAFormat( 5, 5, 5, 1, 0, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, NormalizedFixedPoint, false, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
669 map.insert(InternalFormatInfoPair(GL_RGBA8, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, NormalizedFixedPoint, false, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
670 map.insert(InternalFormatInfoPair(GL_RGBA8_SNORM, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA, GL_BYTE, NormalizedFixedPoint, false, NeverSupported, AlwaysSupported, AlwaysSupported )));
671 map.insert(InternalFormatInfoPair(GL_RGB10_A2, InternalFormatInfo::RGBAFormat(10, 10, 10, 2, 0, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, NormalizedFixedPoint, false, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
672 map.insert(InternalFormatInfoPair(GL_RGB10_A2UI, InternalFormatInfo::RGBAFormat(10, 10, 10, 2, 0, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, UnsignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
673 map.insert(InternalFormatInfoPair(GL_SRGB8, InternalFormatInfo::RGBAFormat( 8, 8, 8, 0, 0, GL_RGB, GL_UNSIGNED_BYTE, NormalizedFixedPoint, true, NeverSupported, AlwaysSupported, AlwaysSupported )));
674 map.insert(InternalFormatInfoPair(GL_SRGB8_ALPHA8, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, NormalizedFixedPoint, true, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
675 map.insert(InternalFormatInfoPair(GL_R11F_G11F_B10F, InternalFormatInfo::RGBAFormat(11, 11, 10, 0, 0, GL_RGB, GL_UNSIGNED_INT_10F_11F_11F_REV, FloatingPoint, false, NeverSupported, AlwaysSupported, AlwaysSupported )));
676 map.insert(InternalFormatInfoPair(GL_RGB9_E5, InternalFormatInfo::RGBAFormat( 9, 9, 9, 0, 5, GL_RGB, GL_UNSIGNED_INT_5_9_9_9_REV, FloatingPoint, false, NeverSupported, AlwaysSupported, AlwaysSupported )));
677 map.insert(InternalFormatInfoPair(GL_R8I, InternalFormatInfo::RGBAFormat( 8, 0, 0, 0, 0, GL_RED_INTEGER, GL_BYTE, SignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
678 map.insert(InternalFormatInfoPair(GL_R8UI, InternalFormatInfo::RGBAFormat( 8, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_BYTE, UnsignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
679 map.insert(InternalFormatInfoPair(GL_R16I, InternalFormatInfo::RGBAFormat(16, 0, 0, 0, 0, GL_RED_INTEGER, GL_SHORT, SignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
680 map.insert(InternalFormatInfoPair(GL_R16UI, InternalFormatInfo::RGBAFormat(16, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_SHORT, UnsignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
681 map.insert(InternalFormatInfoPair(GL_R32I, InternalFormatInfo::RGBAFormat(32, 0, 0, 0, 0, GL_RED_INTEGER, GL_INT, SignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
682 map.insert(InternalFormatInfoPair(GL_R32UI, InternalFormatInfo::RGBAFormat(32, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_INT, UnsignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
683 map.insert(InternalFormatInfoPair(GL_RG8I, InternalFormatInfo::RGBAFormat( 8, 8, 0, 0, 0, GL_RG_INTEGER, GL_BYTE, SignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
684 map.insert(InternalFormatInfoPair(GL_RG8UI, InternalFormatInfo::RGBAFormat( 8, 8, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_BYTE, UnsignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
685 map.insert(InternalFormatInfoPair(GL_RG16I, InternalFormatInfo::RGBAFormat(16, 16, 0, 0, 0, GL_RG_INTEGER, GL_SHORT, SignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
686 map.insert(InternalFormatInfoPair(GL_RG16UI, InternalFormatInfo::RGBAFormat(16, 16, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_SHORT, UnsignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
687 map.insert(InternalFormatInfoPair(GL_RG32I, InternalFormatInfo::RGBAFormat(32, 32, 0, 0, 0, GL_RG_INTEGER, GL_INT, SignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
688 map.insert(InternalFormatInfoPair(GL_RG32UI, InternalFormatInfo::RGBAFormat(32, 32, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_INT, UnsignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
689 map.insert(InternalFormatInfoPair(GL_RGB8I, InternalFormatInfo::RGBAFormat( 8, 8, 8, 0, 0, GL_RGB_INTEGER, GL_BYTE, SignedInteger, false, NeverSupported, NeverSupported, AlwaysSupported )));
690 map.insert(InternalFormatInfoPair(GL_RGB8UI, InternalFormatInfo::RGBAFormat( 8, 8, 8, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_BYTE, UnsignedInteger, false, NeverSupported, NeverSupported, AlwaysSupported )));
691 map.insert(InternalFormatInfoPair(GL_RGB16I, InternalFormatInfo::RGBAFormat(16, 16, 16, 0, 0, GL_RGB_INTEGER, GL_SHORT, SignedInteger, false, NeverSupported, NeverSupported, AlwaysSupported )));
692 map.insert(InternalFormatInfoPair(GL_RGB16UI, InternalFormatInfo::RGBAFormat(16, 16, 16, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_SHORT, UnsignedInteger, false, NeverSupported, NeverSupported, AlwaysSupported )));
693 map.insert(InternalFormatInfoPair(GL_RGB32I, InternalFormatInfo::RGBAFormat(32, 32, 32, 0, 0, GL_RGB_INTEGER, GL_INT, SignedInteger, false, NeverSupported, NeverSupported, AlwaysSupported )));
694 map.insert(InternalFormatInfoPair(GL_RGB32UI, InternalFormatInfo::RGBAFormat(32, 32, 32, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_INT, UnsignedInteger, false, NeverSupported, NeverSupported, AlwaysSupported )));
695 map.insert(InternalFormatInfoPair(GL_RGBA8I, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA_INTEGER, GL_BYTE, SignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
696 map.insert(InternalFormatInfoPair(GL_RGBA8UI, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE, UnsignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
697 map.insert(InternalFormatInfoPair(GL_RGBA16I, InternalFormatInfo::RGBAFormat(16, 16, 16, 16, 0, GL_RGBA_INTEGER, GL_SHORT, SignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
698 map.insert(InternalFormatInfoPair(GL_RGBA16UI, InternalFormatInfo::RGBAFormat(16, 16, 16, 16, 0, GL_RGBA_INTEGER, GL_UNSIGNED_SHORT, UnsignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
699 map.insert(InternalFormatInfoPair(GL_RGBA32I, InternalFormatInfo::RGBAFormat(32, 32, 32, 32, 0, GL_RGBA_INTEGER, GL_INT, SignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
700 map.insert(InternalFormatInfoPair(GL_RGBA32UI, InternalFormatInfo::RGBAFormat(32, 32, 32, 32, 0, GL_RGBA_INTEGER, GL_UNSIGNED_INT, UnsignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]701
shannonwoods@chromium.orge81ea502013-05-30 00:16:53 +0000[diff] [blame]702 map.insert(InternalFormatInfoPair(GL_BGRA8_EXT, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, NormalizedFixedPoint, false, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
703 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, NormalizedFixedPoint, false, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
704 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, NormalizedFixedPoint, false, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]705
706 // Floating point renderability and filtering is provided by OES_texture_float and OES_texture_half_float
shannonwoods@chromium.orge81ea502013-05-30 00:16:53 +0000[diff] [blame]707 // | Internal format | | D |S | Format | Type | Internal fmt | SRGB | Color | Texture | Supported |
708 // | | | | | | | type | | renderable | filterable | |
709 map.insert(InternalFormatInfoPair(GL_R16F, InternalFormatInfo::RGBAFormat(16, 0, 0, 0, 0, GL_RED, GL_HALF_FLOAT, FloatingPoint, false, CheckSupport<&Context::supportsFloat16RenderableTextures, &rx::Renderer::getFloat16TextureRenderingSupport>, CheckSupport<&Context::supportsFloat16LinearFilter, &rx::Renderer::getFloat16TextureFilteringSupport>, AlwaysSupported )));
710 map.insert(InternalFormatInfoPair(GL_RG16F, InternalFormatInfo::RGBAFormat(16, 16, 0, 0, 0, GL_RG, GL_HALF_FLOAT, FloatingPoint, false, CheckSupport<&Context::supportsFloat16RenderableTextures, &rx::Renderer::getFloat16TextureRenderingSupport>, CheckSupport<&Context::supportsFloat16LinearFilter, &rx::Renderer::getFloat16TextureFilteringSupport>, AlwaysSupported )));
711 map.insert(InternalFormatInfoPair(GL_RGB16F, InternalFormatInfo::RGBAFormat(16, 16, 16, 0, 0, GL_RGB, GL_HALF_FLOAT, FloatingPoint, false, CheckSupport<&Context::supportsFloat16RenderableTextures, &rx::Renderer::getFloat16TextureRenderingSupport>, CheckSupport<&Context::supportsFloat16LinearFilter, &rx::Renderer::getFloat16TextureFilteringSupport>, AlwaysSupported )));
712 map.insert(InternalFormatInfoPair(GL_RGBA16F, InternalFormatInfo::RGBAFormat(16, 16, 16, 16, 0, GL_RGBA, GL_HALF_FLOAT, FloatingPoint, false, CheckSupport<&Context::supportsFloat16RenderableTextures, &rx::Renderer::getFloat16TextureRenderingSupport>, CheckSupport<&Context::supportsFloat16LinearFilter, &rx::Renderer::getFloat16TextureFilteringSupport>, AlwaysSupported )));
713 map.insert(InternalFormatInfoPair(GL_R32F, InternalFormatInfo::RGBAFormat(32, 0, 0, 0, 0, GL_RED, GL_FLOAT, FloatingPoint, false, CheckSupport<&Context::supportsFloat32RenderableTextures, &rx::Renderer::getFloat32TextureRenderingSupport>, CheckSupport<&Context::supportsFloat32LinearFilter, &rx::Renderer::getFloat32TextureFilteringSupport>, AlwaysSupported )));
714 map.insert(InternalFormatInfoPair(GL_RG32F, InternalFormatInfo::RGBAFormat(32, 32, 0, 0, 0, GL_RG, GL_FLOAT, FloatingPoint, false, CheckSupport<&Context::supportsFloat32RenderableTextures, &rx::Renderer::getFloat32TextureRenderingSupport>, CheckSupport<&Context::supportsFloat32LinearFilter, &rx::Renderer::getFloat32TextureFilteringSupport>, AlwaysSupported )));
715 map.insert(InternalFormatInfoPair(GL_RGB32F, InternalFormatInfo::RGBAFormat(32, 32, 32, 0, 0, GL_RGB, GL_FLOAT, FloatingPoint, false, CheckSupport<&Context::supportsFloat32RenderableTextures, &rx::Renderer::getFloat32TextureRenderingSupport>, CheckSupport<&Context::supportsFloat32LinearFilter, &rx::Renderer::getFloat32TextureFilteringSupport>, AlwaysSupported )));
716 map.insert(InternalFormatInfoPair(GL_RGBA32F, InternalFormatInfo::RGBAFormat(32, 32, 32, 32, 0, GL_RGBA, GL_FLOAT, FloatingPoint, 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]717
718 // Depth stencil formats
Shannon Woods9e73b212013-07-08 10:32:19 -0400[diff] [blame^]719 // | Internal format | | D |S | Format | Type | Internal format | Depth | Stencil | Supported |
720 // | | | | | | | type | renderable | renderable | |
Geoff Langa3495322013-06-18 15:16:15 -0400[diff] [blame]721 map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT16, InternalFormatInfo::DepthStencilFormat(16, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, NormalizedFixedPoint, AlwaysSupported, NeverSupported, AlwaysSupported)));
722 map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT24, InternalFormatInfo::DepthStencilFormat(24, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NormalizedFixedPoint, AlwaysSupported, NeverSupported, AlwaysSupported)));
723 map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT32F, InternalFormatInfo::DepthStencilFormat(32, 0, GL_DEPTH_COMPONENT, GL_FLOAT, FloatingPoint, AlwaysSupported, NeverSupported, AlwaysSupported)));
724 map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT32_OES, InternalFormatInfo::DepthStencilFormat(32, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NormalizedFixedPoint, AlwaysSupported, NeverSupported, AlwaysSupported)));
725 map.insert(InternalFormatInfoPair(GL_DEPTH24_STENCIL8, InternalFormatInfo::DepthStencilFormat(24, 8, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, NormalizedFixedPoint, AlwaysSupported, AlwaysSupported, AlwaysSupported)));
726 map.insert(InternalFormatInfoPair(GL_DEPTH32F_STENCIL8, InternalFormatInfo::DepthStencilFormat(32, 8, GL_DEPTH_STENCIL, GL_FLOAT_32_UNSIGNED_INT_24_8_REV, FloatingPoint, AlwaysSupported, AlwaysSupported, AlwaysSupported)));
Shannon Woods9e73b212013-07-08 10:32:19 -0400[diff] [blame^]727 map.insert(InternalFormatInfoPair(GL_STENCIL_INDEX8, InternalFormatInfo::DepthStencilFormat( 0, 8, GL_DEPTH_STENCIL, GL_UNSIGNED_BYTE, NormalizedFixedPoint, NeverSupported, AlwaysSupported, AlwaysSupported)));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]728
729 // Luminance alpha formats
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]730 // | Internal format | | L | A | Format | Type | Internal format | Supported |
731 // | | | | | | | type | |
732 map.insert(InternalFormatInfoPair(GL_ALPHA8_EXT, InternalFormatInfo::LUMAFormat( 0, 8, GL_ALPHA, GL_UNSIGNED_BYTE, NormalizedFixedPoint, AlwaysSupported)));
733 map.insert(InternalFormatInfoPair(GL_LUMINANCE8_EXT, InternalFormatInfo::LUMAFormat( 8, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, NormalizedFixedPoint, AlwaysSupported)));
734 map.insert(InternalFormatInfoPair(GL_ALPHA32F_EXT, InternalFormatInfo::LUMAFormat( 0, 32, GL_ALPHA, GL_FLOAT, FloatingPoint, AlwaysSupported)));
735 map.insert(InternalFormatInfoPair(GL_LUMINANCE32F_EXT, InternalFormatInfo::LUMAFormat(32, 0, GL_LUMINANCE, GL_FLOAT, FloatingPoint, AlwaysSupported)));
736 map.insert(InternalFormatInfoPair(GL_ALPHA16F_EXT, InternalFormatInfo::LUMAFormat( 0, 16, GL_ALPHA, GL_HALF_FLOAT, FloatingPoint, AlwaysSupported)));
737 map.insert(InternalFormatInfoPair(GL_LUMINANCE16F_EXT, InternalFormatInfo::LUMAFormat(16, 0, GL_LUMINANCE, GL_HALF_FLOAT, FloatingPoint, AlwaysSupported)));
738 map.insert(InternalFormatInfoPair(GL_LUMINANCE8_ALPHA8_EXT, InternalFormatInfo::LUMAFormat( 8, 8, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, NormalizedFixedPoint, AlwaysSupported)));
739 map.insert(InternalFormatInfoPair(GL_LUMINANCE_ALPHA32F_EXT, InternalFormatInfo::LUMAFormat(32, 32, GL_LUMINANCE_ALPHA, GL_FLOAT, FloatingPoint, AlwaysSupported)));
740 map.insert(InternalFormatInfoPair(GL_LUMINANCE_ALPHA16F_EXT, InternalFormatInfo::LUMAFormat(16, 16, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT, FloatingPoint, AlwaysSupported)));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]741
742 // Unsized formats
743 // | Internal format | | Format | Supported |
744 // | | | | |
745 map.insert(InternalFormatInfoPair(GL_ALPHA, InternalFormatInfo::UnsizedFormat(GL_ALPHA, AlwaysSupported)));
746 map.insert(InternalFormatInfoPair(GL_LUMINANCE, InternalFormatInfo::UnsizedFormat(GL_LUMINANCE, AlwaysSupported)));
747 map.insert(InternalFormatInfoPair(GL_LUMINANCE_ALPHA, InternalFormatInfo::UnsizedFormat(GL_LUMINANCE_ALPHA, AlwaysSupported)));
748 map.insert(InternalFormatInfoPair(GL_RGB, InternalFormatInfo::UnsizedFormat(GL_RGB, AlwaysSupported)));
749 map.insert(InternalFormatInfoPair(GL_RGBA, InternalFormatInfo::UnsizedFormat(GL_RGBA, AlwaysSupported)));
750 map.insert(InternalFormatInfoPair(GL_BGRA_EXT, InternalFormatInfo::UnsizedFormat(GL_BGRA_EXT, AlwaysSupported)));
751
752 // Compressed formats, From ES 3.0.1 spec, table 3.16
753 // | Internal format | |W |H | B |C | Format | Type | Supported |
754 // | | | | | S |C | | | |
755 map.insert(InternalFormatInfoPair(GL_COMPRESSED_R11_EAC, InternalFormatInfo::CompressedFormat(4, 4, 64, 1, GL_COMPRESSED_R11_EAC, GL_UNSIGNED_BYTE, UnimplementedSupport)));
756 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SIGNED_R11_EAC, InternalFormatInfo::CompressedFormat(4, 4, 64, 1, GL_COMPRESSED_SIGNED_R11_EAC, GL_UNSIGNED_BYTE, UnimplementedSupport)));
757 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RG11_EAC, InternalFormatInfo::CompressedFormat(4, 4, 128, 2, GL_COMPRESSED_RG11_EAC, GL_UNSIGNED_BYTE, UnimplementedSupport)));
758 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SIGNED_RG11_EAC, InternalFormatInfo::CompressedFormat(4, 4, 128, 2, GL_COMPRESSED_SIGNED_RG11_EAC, GL_UNSIGNED_BYTE, UnimplementedSupport)));
759 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGB8_ETC2, InternalFormatInfo::CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_RGB8_ETC2, GL_UNSIGNED_BYTE, UnimplementedSupport)));
760 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SRGB8_ETC2, InternalFormatInfo::CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_SRGB8_ETC2, GL_UNSIGNED_BYTE, UnimplementedSupport)));
761 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, InternalFormatInfo::CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_UNSIGNED_BYTE, UnimplementedSupport)));
762 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, InternalFormatInfo::CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_UNSIGNED_BYTE, UnimplementedSupport)));
763 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA8_ETC2_EAC, InternalFormatInfo::CompressedFormat(4, 4, 128, 4, GL_COMPRESSED_RGBA8_ETC2_EAC, GL_UNSIGNED_BYTE, UnimplementedSupport)));
764 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC, InternalFormatInfo::CompressedFormat(4, 4, 128, 4, GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC, GL_UNSIGNED_BYTE, UnimplementedSupport)));
765
766 // From GL_EXT_texture_compression_dxt1
767 // | Internal format | |W |H | B |C | Format | Type | Supported |
768 // | | | | | S |C | | | |
769 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGB_S3TC_DXT1_EXT, InternalFormatInfo::CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE, AlwaysSupported)));
770 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, InternalFormatInfo::CompressedFormat(4, 4, 64, 4, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE, AlwaysSupported)));
771
772 // From GL_ANGLE_texture_compression_dxt3
773 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, InternalFormatInfo::CompressedFormat(4, 4, 128, 4, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, GL_UNSIGNED_BYTE, AlwaysSupported)));
774
775 // From GL_ANGLE_texture_compression_dxt5
776 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, InternalFormatInfo::CompressedFormat(4, 4, 128, 4, GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, GL_UNSIGNED_BYTE, AlwaysSupported)));
777
778 return map;
779}
780
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]781static InternalFormatInfoMap BuildES2InternalFormatInfoMap()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]782{
783 InternalFormatInfoMap map;
784
785 // From ES 2.0.25 table 4.5
786 map.insert(InternalFormatInfoPair(GL_NONE, InternalFormatInfo()));
787
shannonwoods@chromium.orge81ea502013-05-30 00:16:53 +0000[diff] [blame]788 // | Internal format | | R | G | B | A |S | Format | Type | Internal format | SRGB | Color | Texture | Supported |
789 // | | | | | | | | | | type | | renderable | filterable | |
790 map.insert(InternalFormatInfoPair(GL_RGBA4, InternalFormatInfo::RGBAFormat( 4, 4, 4, 4, 0, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, NormalizedFixedPoint, false, AlwaysSupported, AlwaysSupported, AlwaysSupported)));
791 map.insert(InternalFormatInfoPair(GL_RGB5_A1, InternalFormatInfo::RGBAFormat( 5, 5, 5, 1, 0, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, NormalizedFixedPoint, false, AlwaysSupported, AlwaysSupported, AlwaysSupported)));
Geoff Lang42b8b902013-06-05 16:08:21 -0400[diff] [blame]792 map.insert(InternalFormatInfoPair(GL_RGB565, InternalFormatInfo::RGBAFormat( 5, 6, 5, 0, 0, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, NormalizedFixedPoint, false, AlwaysSupported, AlwaysSupported, AlwaysSupported)));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]793
794 // Extension formats
shannonwoods@chromium.orge81ea502013-05-30 00:16:53 +0000[diff] [blame]795 map.insert(InternalFormatInfoPair(GL_RGB8_OES, InternalFormatInfo::RGBAFormat( 8, 8, 8, 0, 0, GL_RGB, GL_UNSIGNED_BYTE, NormalizedFixedPoint, false, AlwaysSupported, AlwaysSupported, AlwaysSupported)));
796 map.insert(InternalFormatInfoPair(GL_RGBA8_OES, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, NormalizedFixedPoint, false, AlwaysSupported, AlwaysSupported, AlwaysSupported)));
797 map.insert(InternalFormatInfoPair(GL_BGRA8_EXT, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, NormalizedFixedPoint, false, AlwaysSupported, AlwaysSupported, AlwaysSupported)));
798 map.insert(InternalFormatInfoPair(GL_BGRA4_ANGLEX, InternalFormatInfo::RGBAFormat( 4, 4, 4, 4, 0, GL_BGRA_EXT, GL_UNSIGNED_SHORT_4_4_4_4, NormalizedFixedPoint, false, NeverSupported, AlwaysSupported, AlwaysSupported)));
799 map.insert(InternalFormatInfoPair(GL_BGR5_A1_ANGLEX, InternalFormatInfo::RGBAFormat( 5, 5, 5, 1, 0, GL_BGRA_EXT, GL_UNSIGNED_SHORT_5_5_5_1, NormalizedFixedPoint, false, NeverSupported, AlwaysSupported, AlwaysSupported)));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]800
801 // Floating point formats have to query the renderer for support
shannonwoods@chromium.orge81ea502013-05-30 00:16:53 +0000[diff] [blame]802 // | Internal format | | R | G | B | A |S | Format | Type | Internal fmt | SRGB | Color | Texture | Supported |
803 // | | | | | | | | | | type | | renderable | filterable | |
804 map.insert(InternalFormatInfoPair(GL_RGB16F_EXT, InternalFormatInfo::RGBAFormat(16, 16, 16, 0, 0, GL_RGB, GL_HALF_FLOAT_OES, FloatingPoint, false, CheckSupport<&Context::supportsFloat16RenderableTextures, &rx::Renderer::getFloat16TextureRenderingSupport>, CheckSupport<&Context::supportsFloat16LinearFilter, &rx::Renderer::getFloat16TextureFilteringSupport>, CheckSupport<&Context::supportsFloat16Textures>)));
805 map.insert(InternalFormatInfoPair(GL_RGB32F_EXT, InternalFormatInfo::RGBAFormat(32, 32, 32, 0, 0, GL_RGB, GL_FLOAT, FloatingPoint, false, CheckSupport<&Context::supportsFloat32RenderableTextures, &rx::Renderer::getFloat32TextureRenderingSupport>, CheckSupport<&Context::supportsFloat32LinearFilter, &rx::Renderer::getFloat32TextureFilteringSupport>, CheckSupport<&Context::supportsFloat32Textures>)));
806 map.insert(InternalFormatInfoPair(GL_RGBA16F_EXT, InternalFormatInfo::RGBAFormat(16, 16, 16, 16, 0, GL_RGBA, GL_HALF_FLOAT_OES, FloatingPoint, false, CheckSupport<&Context::supportsFloat16RenderableTextures, &rx::Renderer::getFloat16TextureRenderingSupport>, CheckSupport<&Context::supportsFloat16LinearFilter, &rx::Renderer::getFloat16TextureFilteringSupport>, CheckSupport<&Context::supportsFloat16Textures>)));
807 map.insert(InternalFormatInfoPair(GL_RGBA32F_EXT, InternalFormatInfo::RGBAFormat(32, 32, 32, 32, 0, GL_RGBA, GL_FLOAT, FloatingPoint, 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]808
809 // Depth and stencil formats
Shannon Woods9e73b212013-07-08 10:32:19 -0400[diff] [blame^]810 // | Internal format | | D |S | Format | Type | Internal format | Depth | Stencil | Supported |
811 // | | | | | | | type | renderable | renderable | |
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]812 map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT32_OES,InternalFormatInfo::DepthStencilFormat(32, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NormalizedFixedPoint, AlwaysSupported, NeverSupported, CheckSupport<&Context::supportsDepthTextures>)));
813 map.insert(InternalFormatInfoPair(GL_DEPTH24_STENCIL8_OES, InternalFormatInfo::DepthStencilFormat(24, 8, GL_DEPTH_STENCIL_OES, GL_UNSIGNED_INT_24_8_OES, NormalizedFixedPoint, AlwaysSupported, AlwaysSupported, CheckSupport<&Context::supportsDepthTextures>)));
814 map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT16, InternalFormatInfo::DepthStencilFormat(16, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, NormalizedFixedPoint, AlwaysSupported, NeverSupported, AlwaysSupported)));
815 map.insert(InternalFormatInfoPair(GL_STENCIL_INDEX8, InternalFormatInfo::DepthStencilFormat( 0, 8, GL_DEPTH_STENCIL_OES, GL_UNSIGNED_BYTE, NormalizedFixedPoint, NeverSupported, AlwaysSupported, AlwaysSupported)));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]816
817 // Unsized formats
818 // | Internal format | | Format | Supported |
819 // | | | | |
820 map.insert(InternalFormatInfoPair(GL_ALPHA, InternalFormatInfo::UnsizedFormat(GL_ALPHA, AlwaysSupported)));
821 map.insert(InternalFormatInfoPair(GL_LUMINANCE, InternalFormatInfo::UnsizedFormat(GL_LUMINANCE, AlwaysSupported)));
822 map.insert(InternalFormatInfoPair(GL_LUMINANCE_ALPHA, InternalFormatInfo::UnsizedFormat(GL_LUMINANCE_ALPHA, AlwaysSupported)));
823 map.insert(InternalFormatInfoPair(GL_RGB, InternalFormatInfo::UnsizedFormat(GL_RGB, AlwaysSupported)));
824 map.insert(InternalFormatInfoPair(GL_RGBA, InternalFormatInfo::UnsizedFormat(GL_RGBA, AlwaysSupported)));
825 map.insert(InternalFormatInfoPair(GL_BGRA_EXT, InternalFormatInfo::UnsizedFormat(GL_BGRA_EXT, AlwaysSupported)));
826 map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT, InternalFormatInfo::UnsizedFormat(GL_DEPTH_COMPONENT, AlwaysSupported)));
827 map.insert(InternalFormatInfoPair(GL_DEPTH_STENCIL_OES, InternalFormatInfo::UnsizedFormat(GL_DEPTH_STENCIL_OES, AlwaysSupported)));
828
829 // Luminance alpha formats from GL_EXT_texture_storage
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]830 // | Internal format | | L | A | Format | Type | Internal format | Supported |
831 // | | | | | | | type | |
832 map.insert(InternalFormatInfoPair(GL_ALPHA8_EXT, InternalFormatInfo::LUMAFormat( 0, 8, GL_ALPHA, GL_UNSIGNED_BYTE, NormalizedFixedPoint, AlwaysSupported)));
833 map.insert(InternalFormatInfoPair(GL_LUMINANCE8_EXT, InternalFormatInfo::LUMAFormat( 8, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, NormalizedFixedPoint, AlwaysSupported)));
834 map.insert(InternalFormatInfoPair(GL_ALPHA32F_EXT, InternalFormatInfo::LUMAFormat( 0, 32, GL_ALPHA, GL_FLOAT, FloatingPoint, AlwaysSupported)));
835 map.insert(InternalFormatInfoPair(GL_LUMINANCE32F_EXT, InternalFormatInfo::LUMAFormat(32, 0, GL_LUMINANCE, GL_FLOAT, FloatingPoint, AlwaysSupported)));
836 map.insert(InternalFormatInfoPair(GL_ALPHA16F_EXT, InternalFormatInfo::LUMAFormat( 0, 16, GL_ALPHA, GL_HALF_FLOAT_OES, FloatingPoint, AlwaysSupported)));
837 map.insert(InternalFormatInfoPair(GL_LUMINANCE16F_EXT, InternalFormatInfo::LUMAFormat(16, 0, GL_LUMINANCE, GL_HALF_FLOAT_OES, FloatingPoint, AlwaysSupported)));
838 map.insert(InternalFormatInfoPair(GL_LUMINANCE8_ALPHA8_EXT, InternalFormatInfo::LUMAFormat( 8, 8, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, NormalizedFixedPoint, AlwaysSupported)));
839 map.insert(InternalFormatInfoPair(GL_LUMINANCE_ALPHA32F_EXT, InternalFormatInfo::LUMAFormat(32, 32, GL_LUMINANCE_ALPHA, GL_FLOAT, FloatingPoint, AlwaysSupported)));
840 map.insert(InternalFormatInfoPair(GL_LUMINANCE_ALPHA16F_EXT, InternalFormatInfo::LUMAFormat(16, 16, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT_OES, FloatingPoint, AlwaysSupported)));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]841
842 // From GL_EXT_texture_compression_dxt1
843 // | Internal format | |W |H | B |C |Format | Type | Supported |
844 // | | | | | S |C | | | |
845 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGB_S3TC_DXT1_EXT, InternalFormatInfo::CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE, CheckSupport<&Context::supportsDXT1Textures>)));
846 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, InternalFormatInfo::CompressedFormat(4, 4, 64, 4, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE, CheckSupport<&Context::supportsDXT1Textures>)));
847
848 // From GL_ANGLE_texture_compression_dxt3
849 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, InternalFormatInfo::CompressedFormat(4, 4, 128, 4, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, GL_UNSIGNED_BYTE, CheckSupport<&Context::supportsDXT3Textures>)));
850
851 // From GL_ANGLE_texture_compression_dxt5
852 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, InternalFormatInfo::CompressedFormat(4, 4, 128, 4, GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, GL_UNSIGNED_BYTE, CheckSupport<&Context::supportsDXT5Textures>)));
853
854 return map;
855}
856
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]857static bool GetInternalFormatInfo(GLint internalFormat, GLuint clientVersion, InternalFormatInfo *outFormatInfo)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]858{
859 const InternalFormatInfoMap* map = NULL;
860
861 if (clientVersion == 2)
862 {
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]863 static const InternalFormatInfoMap formatMap = BuildES2InternalFormatInfoMap();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]864 map = &formatMap;
865 }
866 else if (clientVersion == 3)
867 {
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]868 static const InternalFormatInfoMap formatMap = BuildES3InternalFormatInfoMap();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]869 map = &formatMap;
870 }
871 else
872 {
873 UNREACHABLE();
874 }
875
876 InternalFormatInfoMap::const_iterator iter = map->find(internalFormat);
877 if (iter != map->end())
878 {
879 if (outFormatInfo)
880 {
881 *outFormatInfo = iter->second;
882 }
883 return true;
884 }
885 else
886 {
887 return false;
888 }
889}
890
891typedef std::set<GLenum> FormatSet;
892
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]893static FormatSet BuildES2ValidFormatSet()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]894{
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]895 static const FormatMap &formatMap = GetFormatMap(2);
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]896
897 FormatSet set;
898
899 for (FormatMap::const_iterator i = formatMap.begin(); i != formatMap.end(); i++)
900 {
901 const FormatTypePair& formatPair = i->first;
902 set.insert(formatPair.first);
903 }
904
905 return set;
906}
907
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]908static FormatSet BuildES3ValidFormatSet()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]909{
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]910 static const ES3FormatSet &formatSet = GetES3FormatSet();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]911
912 FormatSet set;
913
914 for (ES3FormatSet::const_iterator i = formatSet.begin(); i != formatSet.end(); i++)
915 {
916 const FormatInfo& formatInfo = *i;
917 set.insert(formatInfo.mFormat);
918 }
919
920 return set;
921}
922
923typedef std::set<GLenum> TypeSet;
924
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]925static TypeSet BuildES2ValidTypeSet()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]926{
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]927 static const FormatMap &formatMap = GetFormatMap(2);
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]928
929 TypeSet set;
930
931 for (FormatMap::const_iterator i = formatMap.begin(); i != formatMap.end(); i++)
932 {
933 const FormatTypePair& formatPair = i->first;
934 set.insert(formatPair.second);
935 }
936
937 return set;
938}
939
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]940static TypeSet BuildES3ValidTypeSet()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]941{
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]942 static const ES3FormatSet &formatSet = GetES3FormatSet();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]943
944 TypeSet set;
945
946 for (ES3FormatSet::const_iterator i = formatSet.begin(); i != formatSet.end(); i++)
947 {
948 const FormatInfo& formatInfo = *i;
949 set.insert(formatInfo.mType);
950 }
951
952 return set;
953}
954
955struct CopyConversion
956{
957 GLenum mTextureFormat;
958 GLenum mFramebufferFormat;
959
960 CopyConversion(GLenum textureFormat, GLenum framebufferFormat)
961 : mTextureFormat(textureFormat), mFramebufferFormat(framebufferFormat) { }
962
963 bool operator<(const CopyConversion& other) const
964 {
965 return memcmp(this, &other, sizeof(CopyConversion)) < 0;
966 }
967};
968
969typedef std::set<CopyConversion> CopyConversionSet;
970
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]971static CopyConversionSet BuildValidES3CopyTexImageCombinations()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]972{
973 CopyConversionSet set;
974
975 // From ES 3.0.1 spec, table 3.15
976 set.insert(CopyConversion(GL_ALPHA, GL_RGBA));
977 set.insert(CopyConversion(GL_LUMINANCE, GL_RED));
978 set.insert(CopyConversion(GL_LUMINANCE, GL_RG));
979 set.insert(CopyConversion(GL_LUMINANCE, GL_RGB));
980 set.insert(CopyConversion(GL_LUMINANCE, GL_RGBA));
981 set.insert(CopyConversion(GL_LUMINANCE_ALPHA, GL_RGBA));
982 set.insert(CopyConversion(GL_RED, GL_RED));
983 set.insert(CopyConversion(GL_RED, GL_RG));
984 set.insert(CopyConversion(GL_RED, GL_RGB));
985 set.insert(CopyConversion(GL_RED, GL_RGBA));
986 set.insert(CopyConversion(GL_RG, GL_RG));
987 set.insert(CopyConversion(GL_RG, GL_RGB));
988 set.insert(CopyConversion(GL_RG, GL_RGBA));
989 set.insert(CopyConversion(GL_RGB, GL_RGB));
990 set.insert(CopyConversion(GL_RGB, GL_RGBA));
991 set.insert(CopyConversion(GL_RGBA, GL_RGBA));
992
shannonwoods@chromium.orgffab47d2013-05-30 00:16:22 +0000[diff] [blame]993 set.insert(CopyConversion(GL_RED_INTEGER, GL_RED_INTEGER));
994 set.insert(CopyConversion(GL_RED_INTEGER, GL_RG_INTEGER));
995 set.insert(CopyConversion(GL_RED_INTEGER, GL_RGB_INTEGER));
996 set.insert(CopyConversion(GL_RED_INTEGER, GL_RGBA_INTEGER));
997 set.insert(CopyConversion(GL_RG_INTEGER, GL_RG_INTEGER));
998 set.insert(CopyConversion(GL_RG_INTEGER, GL_RGB_INTEGER));
999 set.insert(CopyConversion(GL_RG_INTEGER, GL_RGBA_INTEGER));
1000 set.insert(CopyConversion(GL_RGB_INTEGER, GL_RGB_INTEGER));
1001 set.insert(CopyConversion(GL_RGB_INTEGER, GL_RGBA_INTEGER));
1002 set.insert(CopyConversion(GL_RGBA_INTEGER, GL_RGBA_INTEGER));
1003
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1004 return set;
1005}
1006
1007bool IsValidInternalFormat(GLint internalFormat, const Context *context)
1008{
1009 if (!context)
1010 {
1011 return false;
1012 }
1013
1014 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1015 if (GetInternalFormatInfo(internalFormat, context->getClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1016 {
1017 ASSERT(internalFormatInfo.mSupportFunction != NULL);
1018 return internalFormatInfo.mSupportFunction(context);
1019 }
1020 else
1021 {
1022 return false;
1023 }
1024}
1025
1026bool IsValidFormat(GLenum format, GLuint clientVersion)
1027{
1028 if (clientVersion == 2)
1029 {
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1030 static const FormatSet formatSet = BuildES2ValidFormatSet();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1031 return formatSet.find(format) != formatSet.end();
1032 }
1033 else if (clientVersion == 3)
1034 {
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1035 static const FormatSet formatSet = BuildES3ValidFormatSet();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1036 return formatSet.find(format) != formatSet.end();
1037 }
1038 else
1039 {
1040 UNREACHABLE();
1041 return false;
1042 }
1043}
1044
1045bool IsValidType(GLenum type, GLuint clientVersion)
1046{
1047 if (clientVersion == 2)
1048 {
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1049 static const TypeSet typeSet = BuildES2ValidTypeSet();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1050 return typeSet.find(type) != typeSet.end();
1051 }
1052 else if (clientVersion == 3)
1053 {
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1054 static const TypeSet typeSet = BuildES3ValidTypeSet();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1055 return typeSet.find(type) != typeSet.end();
1056 }
1057 else
1058 {
1059 UNREACHABLE();
1060 return false;
1061 }
1062}
1063
1064bool IsValidFormatCombination(GLint internalFormat, GLenum format, GLenum type, GLuint clientVersion)
1065{
1066 if (clientVersion == 2)
1067 {
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]1068 static const FormatMap &formats = GetFormatMap(clientVersion);
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1069 FormatMap::const_iterator iter = formats.find(FormatTypePair(format, type));
1070
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]1071 return (iter != formats.end()) && ((internalFormat == (GLint)type) || (internalFormat == iter->second.mInternalFormat));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1072 }
1073 else if (clientVersion == 3)
1074 {
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1075 static const ES3FormatSet &formats = GetES3FormatSet();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1076 return formats.find(FormatInfo(internalFormat, format, type)) != formats.end();
1077 }
1078 else
1079 {
1080 UNREACHABLE();
1081 return false;
1082 }
1083}
1084
shannonwoods@chromium.orgffab47d2013-05-30 00:16:22 +0000[diff] [blame]1085bool IsValidCopyTexImageCombination(GLenum textureInternalFormat, GLenum frameBufferInternalFormat, GLuint clientVersion)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1086{
shannonwoods@chromium.orgffab47d2013-05-30 00:16:22 +0000[diff] [blame]1087 InternalFormatInfo textureInternalFormatInfo;
1088 InternalFormatInfo framebufferInternalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1089 if (GetInternalFormatInfo(textureInternalFormat, clientVersion, &textureInternalFormatInfo) &&
1090 GetInternalFormatInfo(frameBufferInternalFormat, clientVersion, &framebufferInternalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1091 {
shannonwoods@chromium.orgffab47d2013-05-30 00:16:22 +0000[diff] [blame]1092 if (clientVersion == 2)
1093 {
1094 UNIMPLEMENTED();
1095 return false;
1096 }
1097 else if (clientVersion == 3)
1098 {
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1099 static const CopyConversionSet conversionSet = BuildValidES3CopyTexImageCombinations();
shannonwoods@chromium.orgffab47d2013-05-30 00:16:22 +0000[diff] [blame]1100 const CopyConversion conversion = CopyConversion(textureInternalFormatInfo.mFormat,
1101 framebufferInternalFormatInfo.mFormat);
1102 if (conversionSet.find(conversion) != conversionSet.end())
1103 {
1104 // 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]1105 // must both be signed or unsigned or fixed/floating point and both source and destinations
1106 // must be either both SRGB or both not SRGB
1107
1108 if (textureInternalFormatInfo.mIsSRGB != framebufferInternalFormatInfo.mIsSRGB)
1109 {
1110 return false;
1111 }
shannonwoods@chromium.orgffab47d2013-05-30 00:16:22 +0000[diff] [blame]1112
1113 if ((textureInternalFormatInfo.mStorageType == SignedInteger && framebufferInternalFormatInfo.mStorageType == SignedInteger ) ||
1114 (textureInternalFormatInfo.mStorageType == UnsignedInteger && framebufferInternalFormatInfo.mStorageType == UnsignedInteger))
1115 {
1116 return true;
1117 }
1118
1119 if ((textureInternalFormatInfo.mStorageType == NormalizedFixedPoint || textureInternalFormatInfo.mStorageType == FloatingPoint) &&
1120 (framebufferInternalFormatInfo.mStorageType == NormalizedFixedPoint || framebufferInternalFormatInfo.mStorageType == FloatingPoint))
1121 {
1122 return true;
1123 }
1124 }
1125
1126 return false;
1127 }
1128 else
1129 {
1130 UNREACHABLE();
1131 return false;
1132 }
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1133 }
1134 else
1135 {
1136 UNREACHABLE();
1137 return false;
1138 }
1139}
1140
1141bool IsSizedInternalFormat(GLint internalFormat, GLuint clientVersion)
1142{
1143 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1144 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1145 {
1146 return internalFormatInfo.mPixelBits > 0;
1147 }
1148 else
1149 {
1150 UNREACHABLE();
1151 return false;
1152 }
1153}
1154
1155GLint GetSizedInternalFormat(GLenum format, GLenum type, GLuint clientVersion)
1156{
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]1157 const FormatMap &formats = GetFormatMap(clientVersion);
1158 FormatMap::const_iterator iter = formats.find(FormatTypePair(format, type));
1159 return (iter != formats.end()) ? iter->second.mInternalFormat : GL_NONE;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1160}
1161
1162GLuint GetPixelBytes(GLint internalFormat, GLuint clientVersion)
1163{
1164 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1165 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1166 {
1167 return internalFormatInfo.mPixelBits / 8;
1168 }
1169 else
1170 {
1171 UNREACHABLE();
1172 return 0;
1173 }
1174}
1175
1176GLuint GetAlphaBits(GLint internalFormat, GLuint clientVersion)
1177{
1178 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1179 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1180 {
1181 return internalFormatInfo.mAlphaBits;
1182 }
1183 else
1184 {
1185 UNREACHABLE();
1186 return 0;
1187 }
1188}
1189
1190GLuint GetRedBits(GLint internalFormat, GLuint clientVersion)
1191{
1192 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1193 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1194 {
1195 return internalFormatInfo.mRedBits;
1196 }
1197 else
1198 {
1199 UNREACHABLE();
1200 return 0;
1201 }
1202}
1203
1204GLuint GetGreenBits(GLint internalFormat, GLuint clientVersion)
1205{
1206 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1207 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1208 {
1209 return internalFormatInfo.mGreenBits;
1210 }
1211 else
1212 {
1213 UNREACHABLE();
1214 return 0;
1215 }
1216}
1217
1218GLuint GetBlueBits(GLint internalFormat, GLuint clientVersion)
1219{
1220 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1221 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1222 {
Geoff Lang24159222013-06-05 14:56:32 -0400[diff] [blame]1223 return internalFormatInfo.mBlueBits;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1224 }
1225 else
1226 {
1227 UNREACHABLE();
1228 return 0;
1229 }
1230}
1231
1232GLuint GetLuminanceBits(GLint internalFormat, GLuint clientVersion)
1233{
1234 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1235 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1236 {
1237 return internalFormatInfo.mLuminanceBits;
1238 }
1239 else
1240 {
1241 UNREACHABLE();
1242 return 0;
1243 }
1244}
1245
1246GLuint GetDepthBits(GLint internalFormat, GLuint clientVersion)
1247{
1248 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1249 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1250 {
1251 return internalFormatInfo.mDepthBits;
1252 }
1253 else
1254 {
1255 UNREACHABLE();
1256 return 0;
1257 }
1258}
1259
1260GLuint GetStencilBits(GLint internalFormat, GLuint clientVersion)
1261{
1262 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1263 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1264 {
1265 return internalFormatInfo.mStencilBits;
1266 }
1267 else
1268 {
1269 UNREACHABLE();
1270 return 0;
1271 }
1272}
1273
1274GLenum GetFormat(GLint internalFormat, GLuint clientVersion)
1275{
1276 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1277 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1278 {
1279 return internalFormatInfo.mFormat;
1280 }
1281 else
1282 {
1283 UNREACHABLE();
1284 return GL_NONE;
1285 }
1286}
1287
1288GLenum GetType(GLint internalFormat, GLuint clientVersion)
1289{
1290 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1291 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1292 {
1293 return internalFormatInfo.mType;
1294 }
1295 else
1296 {
1297 UNREACHABLE();
1298 return GL_NONE;
1299 }
1300}
1301
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]1302bool IsNormalizedFixedPointFormat(GLint internalFormat, GLuint clientVersion)
1303{
1304 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1305 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]1306 {
1307 return internalFormatInfo.mStorageType == NormalizedFixedPoint;
1308 }
1309 else
1310 {
1311 UNREACHABLE();
1312 return false;
1313 }
1314}
1315
1316bool IsIntegerFormat(GLint internalFormat, GLuint clientVersion)
1317{
1318 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1319 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]1320 {
1321 return internalFormatInfo.mStorageType == UnsignedInteger ||
1322 internalFormatInfo.mStorageType == SignedInteger;
1323 }
1324 else
1325 {
1326 UNREACHABLE();
1327 return false;
1328 }
1329}
1330
1331bool IsSignedIntegerFormat(GLint internalFormat, GLuint clientVersion)
1332{
1333 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1334 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]1335 {
1336 return internalFormatInfo.mStorageType == SignedInteger;
1337 }
1338 else
1339 {
1340 UNREACHABLE();
1341 return false;
1342 }
1343}
1344
1345bool IsUnsignedIntegerFormat(GLint internalFormat, GLuint clientVersion)
1346{
1347 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1348 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]1349 {
1350 return internalFormatInfo.mStorageType == UnsignedInteger;
1351 }
1352 else
1353 {
1354 UNREACHABLE();
1355 return false;
1356 }
1357}
1358
1359bool IsFloatingPointFormat(GLint internalFormat, GLuint clientVersion)
1360{
1361 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1362 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]1363 {
1364 return internalFormatInfo.mStorageType == FloatingPoint;
1365 }
1366 else
1367 {
1368 UNREACHABLE();
1369 return false;
1370 }
1371}
1372
shannonwoods@chromium.orge81ea502013-05-30 00:16:53 +0000[diff] [blame]1373bool IsSRGBFormat(GLint internalFormat, GLuint clientVersion)
1374{
1375 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1376 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orge81ea502013-05-30 00:16:53 +0000[diff] [blame]1377 {
1378 return internalFormatInfo.mIsSRGB;
1379 }
1380 else
1381 {
1382 UNREACHABLE();
1383 return false;
1384 }
1385}
1386
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1387bool IsColorRenderingSupported(GLint internalFormat, const rx::Renderer *renderer)
1388{
1389 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1390 if (renderer && GetInternalFormatInfo(internalFormat, renderer->getCurrentClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1391 {
1392 return internalFormatInfo.mIsColorRenderable(NULL, renderer);
1393 }
1394 else
1395 {
1396 UNREACHABLE();
1397 return false;
1398 }
1399}
1400
1401bool IsColorRenderingSupported(GLint internalFormat, const Context *context)
1402{
1403 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1404 if (context && GetInternalFormatInfo(internalFormat, context->getClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1405 {
1406 return internalFormatInfo.mIsColorRenderable(context, NULL);
1407 }
1408 else
1409 {
1410 UNREACHABLE();
1411 return false;
1412 }
1413}
1414
1415bool IsTextureFilteringSupported(GLint internalFormat, const rx::Renderer *renderer)
1416{
1417 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1418 if (renderer && GetInternalFormatInfo(internalFormat, renderer->getCurrentClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1419 {
1420 return internalFormatInfo.mIsTextureFilterable(NULL, renderer);
1421 }
1422 else
1423 {
1424 UNREACHABLE();
1425 return false;
1426 }
1427}
1428
1429bool IsTextureFilteringSupported(GLint internalFormat, const Context *context)
1430{
1431 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1432 if (context && GetInternalFormatInfo(internalFormat, context->getClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1433 {
1434 return internalFormatInfo.mIsTextureFilterable(context, NULL);
1435 }
1436 else
1437 {
1438 UNREACHABLE();
1439 return false;
1440 }
1441}
1442
1443bool IsDepthRenderingSupported(GLint internalFormat, const rx::Renderer *renderer)
1444{
1445 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1446 if (renderer && GetInternalFormatInfo(internalFormat, renderer->getCurrentClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1447 {
1448 return internalFormatInfo.mIsDepthRenderable(NULL, renderer);
1449 }
1450 else
1451 {
1452 UNREACHABLE();
1453 return false;
1454 }
1455}
1456
1457bool IsDepthRenderingSupported(GLint internalFormat, const Context *context)
1458{
1459 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1460 if (context && GetInternalFormatInfo(internalFormat, context->getClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1461 {
1462 return internalFormatInfo.mIsDepthRenderable(context, NULL);
1463 }
1464 else
1465 {
1466 UNREACHABLE();
1467 return false;
1468 }
1469}
1470
1471bool IsStencilRenderingSupported(GLint internalFormat, const rx::Renderer *renderer)
1472{
1473 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1474 if (renderer && GetInternalFormatInfo(internalFormat, renderer->getCurrentClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1475 {
1476 return internalFormatInfo.mIsStencilRenderable(NULL, renderer);
1477 }
1478 else
1479 {
1480 UNREACHABLE();
1481 return false;
1482 }
1483}
1484
1485bool IsStencilRenderingSupported(GLint internalFormat, const Context *context)
1486{
1487 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1488 if (context && GetInternalFormatInfo(internalFormat, context->getClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1489 {
1490 return internalFormatInfo.mIsStencilRenderable(context, NULL);
1491 }
1492 else
1493 {
1494 UNREACHABLE();
1495 return false;
1496 }
1497}
1498
1499GLuint GetRowPitch(GLint internalFormat, GLenum type, GLuint clientVersion, GLsizei width, GLint alignment)
1500{
1501 ASSERT(alignment > 0 && isPow2(alignment));
1502 return (GetBlockSize(internalFormat, type, clientVersion, width, 1) + alignment - 1) & ~(alignment - 1);
1503}
1504
1505GLuint GetDepthPitch(GLint internalFormat, GLenum type, GLuint clientVersion, GLsizei width, GLsizei height, GLint alignment)
1506{
1507 return (GetBlockSize(internalFormat, type, clientVersion, width, height) + alignment - 1) & ~(alignment - 1);
1508}
1509
1510GLuint GetBlockSize(GLint internalFormat, GLenum type, GLuint clientVersion, GLsizei width, GLsizei height)
1511{
1512 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1513 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1514 {
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]1515 if (internalFormatInfo.mStorageType == Compressed)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1516 {
1517 GLsizei numBlocksWide = (width + internalFormatInfo.mCompressedBlockWidth - 1) / internalFormatInfo.mCompressedBlockWidth;
1518 GLsizei numBlocksHight = (height + internalFormatInfo.mCompressedBlockHeight - 1) / internalFormatInfo.mCompressedBlockHeight;
1519
1520 return (internalFormatInfo.mPixelBits * numBlocksWide * numBlocksHight) / 8;
1521 }
1522 else
1523 {
1524 TypeInfo typeInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1525 if (GetTypeInfo(type, &typeInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1526 {
1527 if (typeInfo.mSpecialInterpretation)
1528 {
1529 return typeInfo.mTypeBytes * width * height;
1530 }
1531 else
1532 {
1533 return internalFormatInfo.mComponentCount * typeInfo.mTypeBytes * width * height;
1534 }
1535 }
1536 else
1537 {
1538 UNREACHABLE();
1539 return 0;
1540 }
1541 }
1542 }
1543 else
1544 {
1545 UNREACHABLE();
1546 return 0;
1547 }
1548}
1549
1550bool IsFormatCompressed(GLint internalFormat, GLuint clientVersion)
1551{
1552 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1553 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1554 {
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]1555 return internalFormatInfo.mStorageType == Compressed;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1556 }
1557 else
1558 {
1559 UNREACHABLE();
1560 return false;
1561 }
1562}
1563
1564GLuint GetCompressedBlockWidth(GLint internalFormat, GLuint clientVersion)
1565{
1566 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1567 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1568 {
1569 return internalFormatInfo.mCompressedBlockWidth;
1570 }
1571 else
1572 {
1573 UNREACHABLE();
1574 return 0;
1575 }
1576}
1577
1578GLuint GetCompressedBlockHeight(GLint internalFormat, GLuint clientVersion)
1579{
1580 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1581 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1582 {
1583 return internalFormatInfo.mCompressedBlockHeight;
1584 }
1585 else
1586 {
1587 UNREACHABLE();
1588 return 0;
1589 }
1590}
1591
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]1592ColorWriteFunction GetColorWriteFunction(GLenum format, GLenum type, GLuint clientVersion)
1593{
1594 static const FormatMap &formats = GetFormatMap(clientVersion);
1595 FormatMap::const_iterator iter = formats.find(FormatTypePair(format, type));
1596 return (iter != formats.end()) ? iter->second.mColorWriteFunction : NULL;
1597}
1598
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1599}