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gerrit-public.fairphone.software / platform / external / angle / cb127d3d185a5073962cc58bb13e1ee8b5458be7 / . / src / libGLESv2 / formatutils.cpp
blob: 39ead6818b249dba1f69f78abd51ee1cc5a7989a [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)));
Jamie Madilla940ae42013-07-08 17:48:34 -0400[diff] [blame]402 map.insert(TypeInfoPair(GL_HALF_FLOAT_OES, TypeInfo( 2, false)));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]403 map.insert(TypeInfoPair(GL_FLOAT, TypeInfo( 4, false)));
404 map.insert(TypeInfoPair(GL_UNSIGNED_SHORT_5_6_5, TypeInfo( 2, true )));
405 map.insert(TypeInfoPair(GL_UNSIGNED_SHORT_4_4_4_4, TypeInfo( 2, true )));
406 map.insert(TypeInfoPair(GL_UNSIGNED_SHORT_5_5_5_1, TypeInfo( 2, true )));
407 map.insert(TypeInfoPair(GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT, TypeInfo( 2, true )));
408 map.insert(TypeInfoPair(GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT, TypeInfo( 2, true )));
409 map.insert(TypeInfoPair(GL_UNSIGNED_INT_2_10_10_10_REV, TypeInfo( 4, true )));
410 map.insert(TypeInfoPair(GL_UNSIGNED_INT_24_8, TypeInfo( 4, true )));
411 map.insert(TypeInfoPair(GL_UNSIGNED_INT_10F_11F_11F_REV, TypeInfo( 4, true )));
412 map.insert(TypeInfoPair(GL_UNSIGNED_INT_5_9_9_9_REV, TypeInfo( 4, true )));
413 map.insert(TypeInfoPair(GL_FLOAT_32_UNSIGNED_INT_24_8_REV, TypeInfo( 4, true )));
414 map.insert(TypeInfoPair(GL_UNSIGNED_INT_24_8_OES, TypeInfo( 4, true )));
415
416 return map;
417}
418
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]419static bool GetTypeInfo(GLenum type, TypeInfo *outTypeInfo)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]420{
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]421 static const TypeInfoMap infoMap = BuildTypeInfoMap();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]422 TypeInfoMap::const_iterator iter = infoMap.find(type);
423 if (iter != infoMap.end())
424 {
425 if (outTypeInfo)
426 {
427 *outTypeInfo = iter->second;
428 }
429 return true;
430 }
431 else
432 {
433 return false;
434 }
435}
436
437// Information about internal formats
438typedef bool ((Context::*ContextSupportCheckMemberFunction)(void) const);
439typedef bool (*ContextSupportCheckFunction)(const Context *context);
440
441typedef bool ((rx::Renderer::*RendererSupportCheckMemberFunction)(void) const);
442typedef bool (*ContextRendererSupportCheckFunction)(const Context *context, const rx::Renderer *renderer);
443
444template <ContextSupportCheckMemberFunction func>
445bool CheckSupport(const Context *context)
446{
447 return (context->*func)();
448}
449
450template <ContextSupportCheckMemberFunction contextFunc, RendererSupportCheckMemberFunction rendererFunc>
451bool CheckSupport(const Context *context, const rx::Renderer *renderer)
452{
453 if (context)
454 {
455 return (context->*contextFunc)();
456 }
457 else if (renderer)
458 {
459 return (renderer->*rendererFunc)();
460 }
461 else
462 {
463 UNREACHABLE();
464 return false;
465 }
466}
467
468template <typename objectType>
469bool AlwaysSupported(const objectType*)
470{
471 return true;
472}
473
474template <typename objectTypeA, typename objectTypeB>
475bool AlwaysSupported(const objectTypeA*, const objectTypeB*)
476{
477 return true;
478}
479
480template <typename objectType>
481bool NeverSupported(const objectType*)
482{
483 return false;
484}
485
486template <typename objectTypeA, typename objectTypeB>
487bool NeverSupported(const objectTypeA *, const objectTypeB *)
488{
489 return false;
490}
491
492template <typename objectType>
493bool UnimplementedSupport(const objectType*)
494{
495 UNIMPLEMENTED();
496 return false;
497}
498
499template <typename objectTypeA, typename objectTypeB>
500bool UnimplementedSupport(const objectTypeA*, const objectTypeB*)
501{
502 UNIMPLEMENTED();
503 return false;
504}
505
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]506enum InternalFormatStorageType
507{
508 Unknown,
509 NormalizedFixedPoint,
510 FloatingPoint,
511 SignedInteger,
512 UnsignedInteger,
513 Compressed,
514};
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]515
516struct InternalFormatInfo
517{
518 GLuint mRedBits;
519 GLuint mGreenBits;
520 GLuint mBlueBits;
521
522 GLuint mLuminanceBits;
523
524 GLuint mAlphaBits;
525 GLuint mSharedBits;
526
527 GLuint mDepthBits;
528 GLuint mStencilBits;
529
530 GLuint mPixelBits;
531
532 GLuint mComponentCount;
533
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]534 GLuint mCompressedBlockWidth;
535 GLuint mCompressedBlockHeight;
536
537 GLenum mFormat;
538 GLenum mType;
539
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]540 InternalFormatStorageType mStorageType;
541
shannonwoods@chromium.orge81ea502013-05-30 00:16:53 +0000[diff] [blame]542 bool mIsSRGB;
543
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]544 ContextRendererSupportCheckFunction mIsColorRenderable;
545 ContextRendererSupportCheckFunction mIsDepthRenderable;
546 ContextRendererSupportCheckFunction mIsStencilRenderable;
547 ContextRendererSupportCheckFunction mIsTextureFilterable;
548
549 ContextSupportCheckFunction mSupportFunction;
550
551 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]552 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]553 mStorageType(Unknown), mIsSRGB(false), mIsColorRenderable(NeverSupported), mIsDepthRenderable(NeverSupported), mIsStencilRenderable(NeverSupported),
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]554 mIsTextureFilterable(NeverSupported), mSupportFunction(NeverSupported)
555 {
556 }
557
558 static InternalFormatInfo UnsizedFormat(GLenum format, ContextSupportCheckFunction supportFunction)
559 {
560 InternalFormatInfo formatInfo;
561 formatInfo.mFormat = format;
562 formatInfo.mSupportFunction = supportFunction;
Shannon Woods9e73b212013-07-08 10:32:19 -0400[diff] [blame]563
564 if (format == GL_RGB || format == GL_RGBA)
565 formatInfo.mIsColorRenderable = AlwaysSupported;
566
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]567 return formatInfo;
568 }
569
570 static InternalFormatInfo RGBAFormat(GLuint red, GLuint green, GLuint blue, GLuint alpha, GLuint shared,
shannonwoods@chromium.orge81ea502013-05-30 00:16:53 +0000[diff] [blame]571 GLenum format, GLenum type, InternalFormatStorageType storageType, bool srgb,
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]572 ContextRendererSupportCheckFunction colorRenderable,
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]573 ContextRendererSupportCheckFunction textureFilterable,
574 ContextSupportCheckFunction supportFunction)
575 {
576 InternalFormatInfo formatInfo;
577 formatInfo.mRedBits = red;
578 formatInfo.mGreenBits = green;
579 formatInfo.mBlueBits = blue;
580 formatInfo.mAlphaBits = alpha;
581 formatInfo.mSharedBits = shared;
582 formatInfo.mPixelBits = red + green + blue + alpha + shared;
583 formatInfo.mComponentCount = ((red > 0) ? 1 : 0) + ((green > 0) ? 1 : 0) + ((blue > 0) ? 1 : 0) + ((alpha > 0) ? 1 : 0);
584 formatInfo.mFormat = format;
585 formatInfo.mType = type;
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]586 formatInfo.mStorageType = storageType;
shannonwoods@chromium.orge81ea502013-05-30 00:16:53 +0000[diff] [blame]587 formatInfo.mIsSRGB = srgb;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]588 formatInfo.mIsColorRenderable = colorRenderable;
589 formatInfo.mIsTextureFilterable = textureFilterable;
590 formatInfo.mSupportFunction = supportFunction;
591 return formatInfo;
592 }
593
594 static InternalFormatInfo LUMAFormat(GLuint luminance, GLuint alpha, GLenum format, GLenum type,
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]595 InternalFormatStorageType storageType,
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]596 ContextSupportCheckFunction supportFunction)
597 {
598 InternalFormatInfo formatInfo;
599 formatInfo.mLuminanceBits = luminance;
600 formatInfo.mAlphaBits = alpha;
601 formatInfo.mPixelBits = luminance + alpha;
602 formatInfo.mComponentCount = ((luminance > 0) ? 1 : 0) + ((alpha > 0) ? 1 : 0);
603 formatInfo.mFormat = format;
604 formatInfo.mType = type;
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]605 formatInfo.mStorageType = storageType;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]606 formatInfo.mIsTextureFilterable = AlwaysSupported;
607 formatInfo.mSupportFunction = supportFunction;
608 return formatInfo;
609 }
610
611 static InternalFormatInfo DepthStencilFormat(GLuint depth, GLuint stencil, GLenum format, GLenum type,
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]612 InternalFormatStorageType storageType,
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]613 ContextRendererSupportCheckFunction depthRenderable,
614 ContextRendererSupportCheckFunction stencilRenderable,
615 ContextSupportCheckFunction supportFunction)
616 {
617 InternalFormatInfo formatInfo;
618 formatInfo.mDepthBits = depth;
619 formatInfo.mStencilBits = stencil;
620 formatInfo.mPixelBits = depth + stencil;
621 formatInfo.mComponentCount = ((depth > 0) ? 1 : 0) + ((stencil > 0) ? 1 : 0);
622 formatInfo.mFormat = format;
623 formatInfo.mType = type;
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]624 formatInfo.mStorageType = storageType;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]625 formatInfo.mIsDepthRenderable = depthRenderable;
626 formatInfo.mIsStencilRenderable = stencilRenderable;
627 formatInfo.mSupportFunction = supportFunction;
628 return formatInfo;
629 }
630
631 static InternalFormatInfo CompressedFormat(GLuint compressedBlockWidth, GLuint compressedBlockHeight,
632 GLuint compressedBlockSize, GLuint componentCount, GLenum format, GLenum type,
633 ContextSupportCheckFunction supportFunction)
634 {
635 InternalFormatInfo formatInfo;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]636 formatInfo.mCompressedBlockWidth = compressedBlockWidth;
637 formatInfo.mCompressedBlockHeight = compressedBlockHeight;
638 formatInfo.mPixelBits = compressedBlockSize;
639 formatInfo.mComponentCount = componentCount;
640 formatInfo.mFormat = format;
641 formatInfo.mType = type;
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]642 formatInfo.mStorageType = Compressed;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]643 formatInfo.mIsTextureFilterable = AlwaysSupported;
644 formatInfo.mSupportFunction = supportFunction;
645 return formatInfo;
646 }
647};
648
649typedef std::pair<GLuint, InternalFormatInfo> InternalFormatInfoPair;
650typedef std::map<GLuint, InternalFormatInfo> InternalFormatInfoMap;
651
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]652static InternalFormatInfoMap BuildES3InternalFormatInfoMap()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]653{
654 InternalFormatInfoMap map;
655
656 // From ES 3.0.1 spec, table 3.12
657 map.insert(InternalFormatInfoPair(GL_NONE, InternalFormatInfo()));
658
shannonwoods@chromium.orge81ea502013-05-30 00:16:53 +0000[diff] [blame]659 // | Internal format | | R | G | B | A |S | Format | Type | Internal format | SRGB | Color | Texture | Supported |
660 // | | | | | | | | | | type | | renderable | filterable | |
661 map.insert(InternalFormatInfoPair(GL_R8, InternalFormatInfo::RGBAFormat( 8, 0, 0, 0, 0, GL_RED, GL_UNSIGNED_BYTE, NormalizedFixedPoint, false, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
662 map.insert(InternalFormatInfoPair(GL_R8_SNORM, InternalFormatInfo::RGBAFormat( 8, 0, 0, 0, 0, GL_RED, GL_BYTE, NormalizedFixedPoint, false, NeverSupported, AlwaysSupported, AlwaysSupported )));
663 map.insert(InternalFormatInfoPair(GL_RG8, InternalFormatInfo::RGBAFormat( 8, 8, 0, 0, 0, GL_RG, GL_UNSIGNED_BYTE, NormalizedFixedPoint, false, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
664 map.insert(InternalFormatInfoPair(GL_RG8_SNORM, InternalFormatInfo::RGBAFormat( 8, 8, 0, 0, 0, GL_RG, GL_BYTE, NormalizedFixedPoint, false, NeverSupported, AlwaysSupported, AlwaysSupported )));
665 map.insert(InternalFormatInfoPair(GL_RGB8, InternalFormatInfo::RGBAFormat( 8, 8, 8, 0, 0, GL_RGB, GL_UNSIGNED_BYTE, NormalizedFixedPoint, false, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
666 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]667 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]668 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]669 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 )));
670 map.insert(InternalFormatInfoPair(GL_RGBA8, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, NormalizedFixedPoint, false, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
671 map.insert(InternalFormatInfoPair(GL_RGBA8_SNORM, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA, GL_BYTE, NormalizedFixedPoint, false, NeverSupported, AlwaysSupported, AlwaysSupported )));
672 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 )));
673 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 )));
674 map.insert(InternalFormatInfoPair(GL_SRGB8, InternalFormatInfo::RGBAFormat( 8, 8, 8, 0, 0, GL_RGB, GL_UNSIGNED_BYTE, NormalizedFixedPoint, true, NeverSupported, AlwaysSupported, AlwaysSupported )));
675 map.insert(InternalFormatInfoPair(GL_SRGB8_ALPHA8, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, NormalizedFixedPoint, true, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
676 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 )));
677 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 )));
678 map.insert(InternalFormatInfoPair(GL_R8I, InternalFormatInfo::RGBAFormat( 8, 0, 0, 0, 0, GL_RED_INTEGER, GL_BYTE, SignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
679 map.insert(InternalFormatInfoPair(GL_R8UI, InternalFormatInfo::RGBAFormat( 8, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_BYTE, UnsignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
680 map.insert(InternalFormatInfoPair(GL_R16I, InternalFormatInfo::RGBAFormat(16, 0, 0, 0, 0, GL_RED_INTEGER, GL_SHORT, SignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
681 map.insert(InternalFormatInfoPair(GL_R16UI, InternalFormatInfo::RGBAFormat(16, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_SHORT, UnsignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
682 map.insert(InternalFormatInfoPair(GL_R32I, InternalFormatInfo::RGBAFormat(32, 0, 0, 0, 0, GL_RED_INTEGER, GL_INT, SignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
683 map.insert(InternalFormatInfoPair(GL_R32UI, InternalFormatInfo::RGBAFormat(32, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_INT, UnsignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
684 map.insert(InternalFormatInfoPair(GL_RG8I, InternalFormatInfo::RGBAFormat( 8, 8, 0, 0, 0, GL_RG_INTEGER, GL_BYTE, SignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
685 map.insert(InternalFormatInfoPair(GL_RG8UI, InternalFormatInfo::RGBAFormat( 8, 8, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_BYTE, UnsignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
686 map.insert(InternalFormatInfoPair(GL_RG16I, InternalFormatInfo::RGBAFormat(16, 16, 0, 0, 0, GL_RG_INTEGER, GL_SHORT, SignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
687 map.insert(InternalFormatInfoPair(GL_RG16UI, InternalFormatInfo::RGBAFormat(16, 16, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_SHORT, UnsignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
688 map.insert(InternalFormatInfoPair(GL_RG32I, InternalFormatInfo::RGBAFormat(32, 32, 0, 0, 0, GL_RG_INTEGER, GL_INT, SignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
689 map.insert(InternalFormatInfoPair(GL_RG32UI, InternalFormatInfo::RGBAFormat(32, 32, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_INT, UnsignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
690 map.insert(InternalFormatInfoPair(GL_RGB8I, InternalFormatInfo::RGBAFormat( 8, 8, 8, 0, 0, GL_RGB_INTEGER, GL_BYTE, SignedInteger, false, NeverSupported, NeverSupported, AlwaysSupported )));
691 map.insert(InternalFormatInfoPair(GL_RGB8UI, InternalFormatInfo::RGBAFormat( 8, 8, 8, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_BYTE, UnsignedInteger, false, NeverSupported, NeverSupported, AlwaysSupported )));
692 map.insert(InternalFormatInfoPair(GL_RGB16I, InternalFormatInfo::RGBAFormat(16, 16, 16, 0, 0, GL_RGB_INTEGER, GL_SHORT, SignedInteger, false, NeverSupported, NeverSupported, AlwaysSupported )));
693 map.insert(InternalFormatInfoPair(GL_RGB16UI, InternalFormatInfo::RGBAFormat(16, 16, 16, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_SHORT, UnsignedInteger, false, NeverSupported, NeverSupported, AlwaysSupported )));
694 map.insert(InternalFormatInfoPair(GL_RGB32I, InternalFormatInfo::RGBAFormat(32, 32, 32, 0, 0, GL_RGB_INTEGER, GL_INT, SignedInteger, false, NeverSupported, NeverSupported, AlwaysSupported )));
695 map.insert(InternalFormatInfoPair(GL_RGB32UI, InternalFormatInfo::RGBAFormat(32, 32, 32, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_INT, UnsignedInteger, false, NeverSupported, NeverSupported, AlwaysSupported )));
696 map.insert(InternalFormatInfoPair(GL_RGBA8I, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA_INTEGER, GL_BYTE, SignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
697 map.insert(InternalFormatInfoPair(GL_RGBA8UI, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE, UnsignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
698 map.insert(InternalFormatInfoPair(GL_RGBA16I, InternalFormatInfo::RGBAFormat(16, 16, 16, 16, 0, GL_RGBA_INTEGER, GL_SHORT, SignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
699 map.insert(InternalFormatInfoPair(GL_RGBA16UI, InternalFormatInfo::RGBAFormat(16, 16, 16, 16, 0, GL_RGBA_INTEGER, GL_UNSIGNED_SHORT, UnsignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
700 map.insert(InternalFormatInfoPair(GL_RGBA32I, InternalFormatInfo::RGBAFormat(32, 32, 32, 32, 0, GL_RGBA_INTEGER, GL_INT, SignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
701 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]702
shannonwoods@chromium.orge81ea502013-05-30 00:16:53 +0000[diff] [blame]703 map.insert(InternalFormatInfoPair(GL_BGRA8_EXT, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, NormalizedFixedPoint, false, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
704 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 )));
705 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]706
707 // 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]708 // | Internal format | | D |S | Format | Type | Internal fmt | SRGB | Color | Texture | Supported |
709 // | | | | | | | type | | renderable | filterable | |
710 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 )));
711 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 )));
712 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 )));
713 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 )));
714 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 )));
715 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 )));
716 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 )));
717 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]718
719 // Depth stencil formats
Shannon Woods9e73b212013-07-08 10:32:19 -0400[diff] [blame]720 // | Internal format | | D |S | Format | Type | Internal format | Depth | Stencil | Supported |
721 // | | | | | | | type | renderable | renderable | |
Geoff Langa3495322013-06-18 15:16:15 -0400[diff] [blame]722 map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT16, InternalFormatInfo::DepthStencilFormat(16, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, NormalizedFixedPoint, AlwaysSupported, NeverSupported, AlwaysSupported)));
723 map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT24, InternalFormatInfo::DepthStencilFormat(24, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NormalizedFixedPoint, AlwaysSupported, NeverSupported, AlwaysSupported)));
724 map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT32F, InternalFormatInfo::DepthStencilFormat(32, 0, GL_DEPTH_COMPONENT, GL_FLOAT, FloatingPoint, AlwaysSupported, NeverSupported, AlwaysSupported)));
725 map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT32_OES, InternalFormatInfo::DepthStencilFormat(32, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NormalizedFixedPoint, AlwaysSupported, NeverSupported, AlwaysSupported)));
726 map.insert(InternalFormatInfoPair(GL_DEPTH24_STENCIL8, InternalFormatInfo::DepthStencilFormat(24, 8, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, NormalizedFixedPoint, AlwaysSupported, AlwaysSupported, AlwaysSupported)));
727 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]728 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]729
730 // Luminance alpha formats
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]731 // | Internal format | | L | A | Format | Type | Internal format | Supported |
732 // | | | | | | | type | |
733 map.insert(InternalFormatInfoPair(GL_ALPHA8_EXT, InternalFormatInfo::LUMAFormat( 0, 8, GL_ALPHA, GL_UNSIGNED_BYTE, NormalizedFixedPoint, AlwaysSupported)));
734 map.insert(InternalFormatInfoPair(GL_LUMINANCE8_EXT, InternalFormatInfo::LUMAFormat( 8, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, NormalizedFixedPoint, AlwaysSupported)));
735 map.insert(InternalFormatInfoPair(GL_ALPHA32F_EXT, InternalFormatInfo::LUMAFormat( 0, 32, GL_ALPHA, GL_FLOAT, FloatingPoint, AlwaysSupported)));
736 map.insert(InternalFormatInfoPair(GL_LUMINANCE32F_EXT, InternalFormatInfo::LUMAFormat(32, 0, GL_LUMINANCE, GL_FLOAT, FloatingPoint, AlwaysSupported)));
737 map.insert(InternalFormatInfoPair(GL_ALPHA16F_EXT, InternalFormatInfo::LUMAFormat( 0, 16, GL_ALPHA, GL_HALF_FLOAT, FloatingPoint, AlwaysSupported)));
738 map.insert(InternalFormatInfoPair(GL_LUMINANCE16F_EXT, InternalFormatInfo::LUMAFormat(16, 0, GL_LUMINANCE, GL_HALF_FLOAT, FloatingPoint, AlwaysSupported)));
739 map.insert(InternalFormatInfoPair(GL_LUMINANCE8_ALPHA8_EXT, InternalFormatInfo::LUMAFormat( 8, 8, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, NormalizedFixedPoint, AlwaysSupported)));
740 map.insert(InternalFormatInfoPair(GL_LUMINANCE_ALPHA32F_EXT, InternalFormatInfo::LUMAFormat(32, 32, GL_LUMINANCE_ALPHA, GL_FLOAT, FloatingPoint, AlwaysSupported)));
741 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]742
743 // Unsized formats
744 // | Internal format | | Format | Supported |
745 // | | | | |
746 map.insert(InternalFormatInfoPair(GL_ALPHA, InternalFormatInfo::UnsizedFormat(GL_ALPHA, AlwaysSupported)));
747 map.insert(InternalFormatInfoPair(GL_LUMINANCE, InternalFormatInfo::UnsizedFormat(GL_LUMINANCE, AlwaysSupported)));
748 map.insert(InternalFormatInfoPair(GL_LUMINANCE_ALPHA, InternalFormatInfo::UnsizedFormat(GL_LUMINANCE_ALPHA, AlwaysSupported)));
749 map.insert(InternalFormatInfoPair(GL_RGB, InternalFormatInfo::UnsizedFormat(GL_RGB, AlwaysSupported)));
750 map.insert(InternalFormatInfoPair(GL_RGBA, InternalFormatInfo::UnsizedFormat(GL_RGBA, AlwaysSupported)));
751 map.insert(InternalFormatInfoPair(GL_BGRA_EXT, InternalFormatInfo::UnsizedFormat(GL_BGRA_EXT, AlwaysSupported)));
752
753 // Compressed formats, From ES 3.0.1 spec, table 3.16
754 // | Internal format | |W |H | B |C | Format | Type | Supported |
755 // | | | | | S |C | | | |
756 map.insert(InternalFormatInfoPair(GL_COMPRESSED_R11_EAC, InternalFormatInfo::CompressedFormat(4, 4, 64, 1, GL_COMPRESSED_R11_EAC, GL_UNSIGNED_BYTE, UnimplementedSupport)));
757 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SIGNED_R11_EAC, InternalFormatInfo::CompressedFormat(4, 4, 64, 1, GL_COMPRESSED_SIGNED_R11_EAC, GL_UNSIGNED_BYTE, UnimplementedSupport)));
758 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RG11_EAC, InternalFormatInfo::CompressedFormat(4, 4, 128, 2, GL_COMPRESSED_RG11_EAC, GL_UNSIGNED_BYTE, UnimplementedSupport)));
759 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SIGNED_RG11_EAC, InternalFormatInfo::CompressedFormat(4, 4, 128, 2, GL_COMPRESSED_SIGNED_RG11_EAC, GL_UNSIGNED_BYTE, UnimplementedSupport)));
760 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGB8_ETC2, InternalFormatInfo::CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_RGB8_ETC2, GL_UNSIGNED_BYTE, UnimplementedSupport)));
761 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SRGB8_ETC2, InternalFormatInfo::CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_SRGB8_ETC2, GL_UNSIGNED_BYTE, UnimplementedSupport)));
762 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)));
763 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)));
764 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA8_ETC2_EAC, InternalFormatInfo::CompressedFormat(4, 4, 128, 4, GL_COMPRESSED_RGBA8_ETC2_EAC, GL_UNSIGNED_BYTE, UnimplementedSupport)));
765 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)));
766
767 // From GL_EXT_texture_compression_dxt1
768 // | Internal format | |W |H | B |C | Format | Type | Supported |
769 // | | | | | S |C | | | |
770 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)));
771 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)));
772
773 // From GL_ANGLE_texture_compression_dxt3
774 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)));
775
776 // From GL_ANGLE_texture_compression_dxt5
777 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)));
778
779 return map;
780}
781
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]782static InternalFormatInfoMap BuildES2InternalFormatInfoMap()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]783{
784 InternalFormatInfoMap map;
785
786 // From ES 2.0.25 table 4.5
787 map.insert(InternalFormatInfoPair(GL_NONE, InternalFormatInfo()));
788
shannonwoods@chromium.orge81ea502013-05-30 00:16:53 +0000[diff] [blame]789 // | Internal format | | R | G | B | A |S | Format | Type | Internal format | SRGB | Color | Texture | Supported |
790 // | | | | | | | | | | type | | renderable | filterable | |
791 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)));
792 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]793 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]794
795 // Extension formats
shannonwoods@chromium.orge81ea502013-05-30 00:16:53 +0000[diff] [blame]796 map.insert(InternalFormatInfoPair(GL_RGB8_OES, InternalFormatInfo::RGBAFormat( 8, 8, 8, 0, 0, GL_RGB, GL_UNSIGNED_BYTE, NormalizedFixedPoint, false, AlwaysSupported, AlwaysSupported, AlwaysSupported)));
797 map.insert(InternalFormatInfoPair(GL_RGBA8_OES, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, NormalizedFixedPoint, false, AlwaysSupported, AlwaysSupported, AlwaysSupported)));
798 map.insert(InternalFormatInfoPair(GL_BGRA8_EXT, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, NormalizedFixedPoint, false, AlwaysSupported, AlwaysSupported, AlwaysSupported)));
799 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)));
800 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]801
802 // Floating point formats have to query the renderer for support
shannonwoods@chromium.orge81ea502013-05-30 00:16:53 +0000[diff] [blame]803 // | Internal format | | R | G | B | A |S | Format | Type | Internal fmt | SRGB | Color | Texture | Supported |
804 // | | | | | | | | | | type | | renderable | filterable | |
805 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>)));
806 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>)));
807 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>)));
808 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]809
810 // Depth and stencil formats
Shannon Woods9e73b212013-07-08 10:32:19 -0400[diff] [blame]811 // | Internal format | | D |S | Format | Type | Internal format | Depth | Stencil | Supported |
812 // | | | | | | | type | renderable | renderable | |
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]813 map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT32_OES,InternalFormatInfo::DepthStencilFormat(32, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NormalizedFixedPoint, AlwaysSupported, NeverSupported, CheckSupport<&Context::supportsDepthTextures>)));
814 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>)));
815 map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT16, InternalFormatInfo::DepthStencilFormat(16, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, NormalizedFixedPoint, AlwaysSupported, NeverSupported, AlwaysSupported)));
816 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]817
818 // Unsized formats
819 // | Internal format | | Format | Supported |
820 // | | | | |
821 map.insert(InternalFormatInfoPair(GL_ALPHA, InternalFormatInfo::UnsizedFormat(GL_ALPHA, AlwaysSupported)));
822 map.insert(InternalFormatInfoPair(GL_LUMINANCE, InternalFormatInfo::UnsizedFormat(GL_LUMINANCE, AlwaysSupported)));
823 map.insert(InternalFormatInfoPair(GL_LUMINANCE_ALPHA, InternalFormatInfo::UnsizedFormat(GL_LUMINANCE_ALPHA, AlwaysSupported)));
824 map.insert(InternalFormatInfoPair(GL_RGB, InternalFormatInfo::UnsizedFormat(GL_RGB, AlwaysSupported)));
825 map.insert(InternalFormatInfoPair(GL_RGBA, InternalFormatInfo::UnsizedFormat(GL_RGBA, AlwaysSupported)));
826 map.insert(InternalFormatInfoPair(GL_BGRA_EXT, InternalFormatInfo::UnsizedFormat(GL_BGRA_EXT, AlwaysSupported)));
827 map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT, InternalFormatInfo::UnsizedFormat(GL_DEPTH_COMPONENT, AlwaysSupported)));
828 map.insert(InternalFormatInfoPair(GL_DEPTH_STENCIL_OES, InternalFormatInfo::UnsizedFormat(GL_DEPTH_STENCIL_OES, AlwaysSupported)));
829
830 // Luminance alpha formats from GL_EXT_texture_storage
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]831 // | Internal format | | L | A | Format | Type | Internal format | Supported |
832 // | | | | | | | type | |
833 map.insert(InternalFormatInfoPair(GL_ALPHA8_EXT, InternalFormatInfo::LUMAFormat( 0, 8, GL_ALPHA, GL_UNSIGNED_BYTE, NormalizedFixedPoint, AlwaysSupported)));
834 map.insert(InternalFormatInfoPair(GL_LUMINANCE8_EXT, InternalFormatInfo::LUMAFormat( 8, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, NormalizedFixedPoint, AlwaysSupported)));
835 map.insert(InternalFormatInfoPair(GL_ALPHA32F_EXT, InternalFormatInfo::LUMAFormat( 0, 32, GL_ALPHA, GL_FLOAT, FloatingPoint, AlwaysSupported)));
836 map.insert(InternalFormatInfoPair(GL_LUMINANCE32F_EXT, InternalFormatInfo::LUMAFormat(32, 0, GL_LUMINANCE, GL_FLOAT, FloatingPoint, AlwaysSupported)));
837 map.insert(InternalFormatInfoPair(GL_ALPHA16F_EXT, InternalFormatInfo::LUMAFormat( 0, 16, GL_ALPHA, GL_HALF_FLOAT_OES, FloatingPoint, AlwaysSupported)));
838 map.insert(InternalFormatInfoPair(GL_LUMINANCE16F_EXT, InternalFormatInfo::LUMAFormat(16, 0, GL_LUMINANCE, GL_HALF_FLOAT_OES, FloatingPoint, AlwaysSupported)));
839 map.insert(InternalFormatInfoPair(GL_LUMINANCE8_ALPHA8_EXT, InternalFormatInfo::LUMAFormat( 8, 8, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, NormalizedFixedPoint, AlwaysSupported)));
840 map.insert(InternalFormatInfoPair(GL_LUMINANCE_ALPHA32F_EXT, InternalFormatInfo::LUMAFormat(32, 32, GL_LUMINANCE_ALPHA, GL_FLOAT, FloatingPoint, AlwaysSupported)));
841 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]842
843 // From GL_EXT_texture_compression_dxt1
844 // | Internal format | |W |H | B |C |Format | Type | Supported |
845 // | | | | | S |C | | | |
846 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>)));
847 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>)));
848
849 // From GL_ANGLE_texture_compression_dxt3
850 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>)));
851
852 // From GL_ANGLE_texture_compression_dxt5
853 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>)));
854
855 return map;
856}
857
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]858static bool GetInternalFormatInfo(GLint internalFormat, GLuint clientVersion, InternalFormatInfo *outFormatInfo)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]859{
860 const InternalFormatInfoMap* map = NULL;
861
862 if (clientVersion == 2)
863 {
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]864 static const InternalFormatInfoMap formatMap = BuildES2InternalFormatInfoMap();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]865 map = &formatMap;
866 }
867 else if (clientVersion == 3)
868 {
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]869 static const InternalFormatInfoMap formatMap = BuildES3InternalFormatInfoMap();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]870 map = &formatMap;
871 }
872 else
873 {
874 UNREACHABLE();
875 }
876
877 InternalFormatInfoMap::const_iterator iter = map->find(internalFormat);
878 if (iter != map->end())
879 {
880 if (outFormatInfo)
881 {
882 *outFormatInfo = iter->second;
883 }
884 return true;
885 }
886 else
887 {
888 return false;
889 }
890}
891
892typedef std::set<GLenum> FormatSet;
893
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]894static FormatSet BuildES2ValidFormatSet()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]895{
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]896 static const FormatMap &formatMap = GetFormatMap(2);
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]897
898 FormatSet set;
899
900 for (FormatMap::const_iterator i = formatMap.begin(); i != formatMap.end(); i++)
901 {
902 const FormatTypePair& formatPair = i->first;
903 set.insert(formatPair.first);
904 }
905
906 return set;
907}
908
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]909static FormatSet BuildES3ValidFormatSet()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]910{
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]911 static const ES3FormatSet &formatSet = GetES3FormatSet();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]912
913 FormatSet set;
914
915 for (ES3FormatSet::const_iterator i = formatSet.begin(); i != formatSet.end(); i++)
916 {
917 const FormatInfo& formatInfo = *i;
918 set.insert(formatInfo.mFormat);
919 }
920
921 return set;
922}
923
924typedef std::set<GLenum> TypeSet;
925
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]926static TypeSet BuildES2ValidTypeSet()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]927{
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]928 static const FormatMap &formatMap = GetFormatMap(2);
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]929
930 TypeSet set;
931
932 for (FormatMap::const_iterator i = formatMap.begin(); i != formatMap.end(); i++)
933 {
934 const FormatTypePair& formatPair = i->first;
935 set.insert(formatPair.second);
936 }
937
938 return set;
939}
940
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]941static TypeSet BuildES3ValidTypeSet()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]942{
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]943 static const ES3FormatSet &formatSet = GetES3FormatSet();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]944
945 TypeSet set;
946
947 for (ES3FormatSet::const_iterator i = formatSet.begin(); i != formatSet.end(); i++)
948 {
949 const FormatInfo& formatInfo = *i;
950 set.insert(formatInfo.mType);
951 }
952
953 return set;
954}
955
956struct CopyConversion
957{
958 GLenum mTextureFormat;
959 GLenum mFramebufferFormat;
960
961 CopyConversion(GLenum textureFormat, GLenum framebufferFormat)
962 : mTextureFormat(textureFormat), mFramebufferFormat(framebufferFormat) { }
963
964 bool operator<(const CopyConversion& other) const
965 {
966 return memcmp(this, &other, sizeof(CopyConversion)) < 0;
967 }
968};
969
970typedef std::set<CopyConversion> CopyConversionSet;
971
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]972static CopyConversionSet BuildValidES3CopyTexImageCombinations()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]973{
974 CopyConversionSet set;
975
976 // From ES 3.0.1 spec, table 3.15
977 set.insert(CopyConversion(GL_ALPHA, GL_RGBA));
978 set.insert(CopyConversion(GL_LUMINANCE, GL_RED));
979 set.insert(CopyConversion(GL_LUMINANCE, GL_RG));
980 set.insert(CopyConversion(GL_LUMINANCE, GL_RGB));
981 set.insert(CopyConversion(GL_LUMINANCE, GL_RGBA));
982 set.insert(CopyConversion(GL_LUMINANCE_ALPHA, GL_RGBA));
983 set.insert(CopyConversion(GL_RED, GL_RED));
984 set.insert(CopyConversion(GL_RED, GL_RG));
985 set.insert(CopyConversion(GL_RED, GL_RGB));
986 set.insert(CopyConversion(GL_RED, GL_RGBA));
987 set.insert(CopyConversion(GL_RG, GL_RG));
988 set.insert(CopyConversion(GL_RG, GL_RGB));
989 set.insert(CopyConversion(GL_RG, GL_RGBA));
990 set.insert(CopyConversion(GL_RGB, GL_RGB));
991 set.insert(CopyConversion(GL_RGB, GL_RGBA));
992 set.insert(CopyConversion(GL_RGBA, GL_RGBA));
993
Jamie Madillb70e5f72013-07-10 16:57:52 -0400[diff] [blame]994 // Necessary for ANGLE back-buffers
995 set.insert(CopyConversion(GL_ALPHA, GL_BGRA_EXT));
996 set.insert(CopyConversion(GL_LUMINANCE, GL_BGRA_EXT));
997 set.insert(CopyConversion(GL_LUMINANCE_ALPHA, GL_BGRA_EXT));
998 set.insert(CopyConversion(GL_RED, GL_BGRA_EXT));
999 set.insert(CopyConversion(GL_RG, GL_BGRA_EXT));
1000 set.insert(CopyConversion(GL_RGB, GL_BGRA_EXT));
1001 set.insert(CopyConversion(GL_RGBA, GL_BGRA_EXT));
1002
shannonwoods@chromium.orgffab47d2013-05-30 00:16:22 +0000[diff] [blame]1003 set.insert(CopyConversion(GL_RED_INTEGER, GL_RED_INTEGER));
1004 set.insert(CopyConversion(GL_RED_INTEGER, GL_RG_INTEGER));
1005 set.insert(CopyConversion(GL_RED_INTEGER, GL_RGB_INTEGER));
1006 set.insert(CopyConversion(GL_RED_INTEGER, GL_RGBA_INTEGER));
1007 set.insert(CopyConversion(GL_RG_INTEGER, GL_RG_INTEGER));
1008 set.insert(CopyConversion(GL_RG_INTEGER, GL_RGB_INTEGER));
1009 set.insert(CopyConversion(GL_RG_INTEGER, GL_RGBA_INTEGER));
1010 set.insert(CopyConversion(GL_RGB_INTEGER, GL_RGB_INTEGER));
1011 set.insert(CopyConversion(GL_RGB_INTEGER, GL_RGBA_INTEGER));
1012 set.insert(CopyConversion(GL_RGBA_INTEGER, GL_RGBA_INTEGER));
1013
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1014 return set;
1015}
1016
1017bool IsValidInternalFormat(GLint internalFormat, const Context *context)
1018{
1019 if (!context)
1020 {
1021 return false;
1022 }
1023
1024 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1025 if (GetInternalFormatInfo(internalFormat, context->getClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1026 {
1027 ASSERT(internalFormatInfo.mSupportFunction != NULL);
1028 return internalFormatInfo.mSupportFunction(context);
1029 }
1030 else
1031 {
1032 return false;
1033 }
1034}
1035
1036bool IsValidFormat(GLenum format, GLuint clientVersion)
1037{
1038 if (clientVersion == 2)
1039 {
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1040 static const FormatSet formatSet = BuildES2ValidFormatSet();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1041 return formatSet.find(format) != formatSet.end();
1042 }
1043 else if (clientVersion == 3)
1044 {
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1045 static const FormatSet formatSet = BuildES3ValidFormatSet();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1046 return formatSet.find(format) != formatSet.end();
1047 }
1048 else
1049 {
1050 UNREACHABLE();
1051 return false;
1052 }
1053}
1054
1055bool IsValidType(GLenum type, GLuint clientVersion)
1056{
1057 if (clientVersion == 2)
1058 {
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1059 static const TypeSet typeSet = BuildES2ValidTypeSet();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1060 return typeSet.find(type) != typeSet.end();
1061 }
1062 else if (clientVersion == 3)
1063 {
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1064 static const TypeSet typeSet = BuildES3ValidTypeSet();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1065 return typeSet.find(type) != typeSet.end();
1066 }
1067 else
1068 {
1069 UNREACHABLE();
1070 return false;
1071 }
1072}
1073
1074bool IsValidFormatCombination(GLint internalFormat, GLenum format, GLenum type, GLuint clientVersion)
1075{
1076 if (clientVersion == 2)
1077 {
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]1078 static const FormatMap &formats = GetFormatMap(clientVersion);
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1079 FormatMap::const_iterator iter = formats.find(FormatTypePair(format, type));
1080
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]1081 return (iter != formats.end()) && ((internalFormat == (GLint)type) || (internalFormat == iter->second.mInternalFormat));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1082 }
1083 else if (clientVersion == 3)
1084 {
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1085 static const ES3FormatSet &formats = GetES3FormatSet();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1086 return formats.find(FormatInfo(internalFormat, format, type)) != formats.end();
1087 }
1088 else
1089 {
1090 UNREACHABLE();
1091 return false;
1092 }
1093}
1094
shannonwoods@chromium.orgffab47d2013-05-30 00:16:22 +0000[diff] [blame]1095bool IsValidCopyTexImageCombination(GLenum textureInternalFormat, GLenum frameBufferInternalFormat, GLuint clientVersion)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1096{
shannonwoods@chromium.orgffab47d2013-05-30 00:16:22 +0000[diff] [blame]1097 InternalFormatInfo textureInternalFormatInfo;
1098 InternalFormatInfo framebufferInternalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1099 if (GetInternalFormatInfo(textureInternalFormat, clientVersion, &textureInternalFormatInfo) &&
1100 GetInternalFormatInfo(frameBufferInternalFormat, clientVersion, &framebufferInternalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1101 {
shannonwoods@chromium.orgffab47d2013-05-30 00:16:22 +0000[diff] [blame]1102 if (clientVersion == 2)
1103 {
1104 UNIMPLEMENTED();
1105 return false;
1106 }
1107 else if (clientVersion == 3)
1108 {
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1109 static const CopyConversionSet conversionSet = BuildValidES3CopyTexImageCombinations();
shannonwoods@chromium.orgffab47d2013-05-30 00:16:22 +0000[diff] [blame]1110 const CopyConversion conversion = CopyConversion(textureInternalFormatInfo.mFormat,
1111 framebufferInternalFormatInfo.mFormat);
1112 if (conversionSet.find(conversion) != conversionSet.end())
1113 {
1114 // 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]1115 // must both be signed or unsigned or fixed/floating point and both source and destinations
1116 // must be either both SRGB or both not SRGB
1117
1118 if (textureInternalFormatInfo.mIsSRGB != framebufferInternalFormatInfo.mIsSRGB)
1119 {
1120 return false;
1121 }
shannonwoods@chromium.orgffab47d2013-05-30 00:16:22 +0000[diff] [blame]1122
1123 if ((textureInternalFormatInfo.mStorageType == SignedInteger && framebufferInternalFormatInfo.mStorageType == SignedInteger ) ||
1124 (textureInternalFormatInfo.mStorageType == UnsignedInteger && framebufferInternalFormatInfo.mStorageType == UnsignedInteger))
1125 {
1126 return true;
1127 }
1128
1129 if ((textureInternalFormatInfo.mStorageType == NormalizedFixedPoint || textureInternalFormatInfo.mStorageType == FloatingPoint) &&
1130 (framebufferInternalFormatInfo.mStorageType == NormalizedFixedPoint || framebufferInternalFormatInfo.mStorageType == FloatingPoint))
1131 {
1132 return true;
1133 }
1134 }
1135
1136 return false;
1137 }
1138 else
1139 {
1140 UNREACHABLE();
1141 return false;
1142 }
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1143 }
1144 else
1145 {
1146 UNREACHABLE();
1147 return false;
1148 }
1149}
1150
1151bool IsSizedInternalFormat(GLint internalFormat, GLuint clientVersion)
1152{
1153 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1154 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1155 {
1156 return internalFormatInfo.mPixelBits > 0;
1157 }
1158 else
1159 {
1160 UNREACHABLE();
1161 return false;
1162 }
1163}
1164
1165GLint GetSizedInternalFormat(GLenum format, GLenum type, GLuint clientVersion)
1166{
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]1167 const FormatMap &formats = GetFormatMap(clientVersion);
1168 FormatMap::const_iterator iter = formats.find(FormatTypePair(format, type));
1169 return (iter != formats.end()) ? iter->second.mInternalFormat : GL_NONE;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1170}
1171
1172GLuint GetPixelBytes(GLint internalFormat, GLuint clientVersion)
1173{
1174 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1175 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1176 {
1177 return internalFormatInfo.mPixelBits / 8;
1178 }
1179 else
1180 {
1181 UNREACHABLE();
1182 return 0;
1183 }
1184}
1185
1186GLuint GetAlphaBits(GLint internalFormat, GLuint clientVersion)
1187{
1188 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1189 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1190 {
1191 return internalFormatInfo.mAlphaBits;
1192 }
1193 else
1194 {
1195 UNREACHABLE();
1196 return 0;
1197 }
1198}
1199
1200GLuint GetRedBits(GLint internalFormat, GLuint clientVersion)
1201{
1202 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1203 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1204 {
1205 return internalFormatInfo.mRedBits;
1206 }
1207 else
1208 {
1209 UNREACHABLE();
1210 return 0;
1211 }
1212}
1213
1214GLuint GetGreenBits(GLint internalFormat, GLuint clientVersion)
1215{
1216 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1217 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1218 {
1219 return internalFormatInfo.mGreenBits;
1220 }
1221 else
1222 {
1223 UNREACHABLE();
1224 return 0;
1225 }
1226}
1227
1228GLuint GetBlueBits(GLint internalFormat, GLuint clientVersion)
1229{
1230 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1231 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1232 {
Geoff Lang24159222013-06-05 14:56:32 -0400[diff] [blame]1233 return internalFormatInfo.mBlueBits;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1234 }
1235 else
1236 {
1237 UNREACHABLE();
1238 return 0;
1239 }
1240}
1241
1242GLuint GetLuminanceBits(GLint internalFormat, GLuint clientVersion)
1243{
1244 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1245 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1246 {
1247 return internalFormatInfo.mLuminanceBits;
1248 }
1249 else
1250 {
1251 UNREACHABLE();
1252 return 0;
1253 }
1254}
1255
1256GLuint GetDepthBits(GLint internalFormat, GLuint clientVersion)
1257{
1258 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1259 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1260 {
1261 return internalFormatInfo.mDepthBits;
1262 }
1263 else
1264 {
1265 UNREACHABLE();
1266 return 0;
1267 }
1268}
1269
1270GLuint GetStencilBits(GLint internalFormat, GLuint clientVersion)
1271{
1272 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1273 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1274 {
1275 return internalFormatInfo.mStencilBits;
1276 }
1277 else
1278 {
1279 UNREACHABLE();
1280 return 0;
1281 }
1282}
1283
1284GLenum GetFormat(GLint internalFormat, GLuint clientVersion)
1285{
1286 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1287 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1288 {
1289 return internalFormatInfo.mFormat;
1290 }
1291 else
1292 {
1293 UNREACHABLE();
1294 return GL_NONE;
1295 }
1296}
1297
1298GLenum GetType(GLint internalFormat, GLuint clientVersion)
1299{
1300 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1301 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1302 {
1303 return internalFormatInfo.mType;
1304 }
1305 else
1306 {
1307 UNREACHABLE();
1308 return GL_NONE;
1309 }
1310}
1311
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]1312bool IsNormalizedFixedPointFormat(GLint internalFormat, GLuint clientVersion)
1313{
1314 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1315 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]1316 {
1317 return internalFormatInfo.mStorageType == NormalizedFixedPoint;
1318 }
1319 else
1320 {
1321 UNREACHABLE();
1322 return false;
1323 }
1324}
1325
1326bool IsIntegerFormat(GLint internalFormat, GLuint clientVersion)
1327{
1328 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1329 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]1330 {
1331 return internalFormatInfo.mStorageType == UnsignedInteger ||
1332 internalFormatInfo.mStorageType == SignedInteger;
1333 }
1334 else
1335 {
1336 UNREACHABLE();
1337 return false;
1338 }
1339}
1340
1341bool IsSignedIntegerFormat(GLint internalFormat, GLuint clientVersion)
1342{
1343 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1344 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]1345 {
1346 return internalFormatInfo.mStorageType == SignedInteger;
1347 }
1348 else
1349 {
1350 UNREACHABLE();
1351 return false;
1352 }
1353}
1354
1355bool IsUnsignedIntegerFormat(GLint internalFormat, GLuint clientVersion)
1356{
1357 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1358 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]1359 {
1360 return internalFormatInfo.mStorageType == UnsignedInteger;
1361 }
1362 else
1363 {
1364 UNREACHABLE();
1365 return false;
1366 }
1367}
1368
1369bool IsFloatingPointFormat(GLint internalFormat, GLuint clientVersion)
1370{
1371 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1372 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]1373 {
1374 return internalFormatInfo.mStorageType == FloatingPoint;
1375 }
1376 else
1377 {
1378 UNREACHABLE();
1379 return false;
1380 }
1381}
1382
shannonwoods@chromium.orge81ea502013-05-30 00:16:53 +0000[diff] [blame]1383bool IsSRGBFormat(GLint internalFormat, GLuint clientVersion)
1384{
1385 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1386 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orge81ea502013-05-30 00:16:53 +0000[diff] [blame]1387 {
1388 return internalFormatInfo.mIsSRGB;
1389 }
1390 else
1391 {
1392 UNREACHABLE();
1393 return false;
1394 }
1395}
1396
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1397bool IsColorRenderingSupported(GLint internalFormat, const rx::Renderer *renderer)
1398{
1399 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1400 if (renderer && GetInternalFormatInfo(internalFormat, renderer->getCurrentClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1401 {
1402 return internalFormatInfo.mIsColorRenderable(NULL, renderer);
1403 }
1404 else
1405 {
1406 UNREACHABLE();
1407 return false;
1408 }
1409}
1410
1411bool IsColorRenderingSupported(GLint internalFormat, const Context *context)
1412{
1413 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1414 if (context && GetInternalFormatInfo(internalFormat, context->getClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1415 {
1416 return internalFormatInfo.mIsColorRenderable(context, NULL);
1417 }
1418 else
1419 {
1420 UNREACHABLE();
1421 return false;
1422 }
1423}
1424
1425bool IsTextureFilteringSupported(GLint internalFormat, const rx::Renderer *renderer)
1426{
1427 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1428 if (renderer && GetInternalFormatInfo(internalFormat, renderer->getCurrentClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1429 {
1430 return internalFormatInfo.mIsTextureFilterable(NULL, renderer);
1431 }
1432 else
1433 {
1434 UNREACHABLE();
1435 return false;
1436 }
1437}
1438
1439bool IsTextureFilteringSupported(GLint internalFormat, const Context *context)
1440{
1441 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1442 if (context && GetInternalFormatInfo(internalFormat, context->getClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1443 {
1444 return internalFormatInfo.mIsTextureFilterable(context, NULL);
1445 }
1446 else
1447 {
1448 UNREACHABLE();
1449 return false;
1450 }
1451}
1452
1453bool IsDepthRenderingSupported(GLint internalFormat, const rx::Renderer *renderer)
1454{
1455 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1456 if (renderer && GetInternalFormatInfo(internalFormat, renderer->getCurrentClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1457 {
1458 return internalFormatInfo.mIsDepthRenderable(NULL, renderer);
1459 }
1460 else
1461 {
1462 UNREACHABLE();
1463 return false;
1464 }
1465}
1466
1467bool IsDepthRenderingSupported(GLint internalFormat, const Context *context)
1468{
1469 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1470 if (context && GetInternalFormatInfo(internalFormat, context->getClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1471 {
1472 return internalFormatInfo.mIsDepthRenderable(context, NULL);
1473 }
1474 else
1475 {
1476 UNREACHABLE();
1477 return false;
1478 }
1479}
1480
1481bool IsStencilRenderingSupported(GLint internalFormat, const rx::Renderer *renderer)
1482{
1483 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1484 if (renderer && GetInternalFormatInfo(internalFormat, renderer->getCurrentClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1485 {
1486 return internalFormatInfo.mIsStencilRenderable(NULL, renderer);
1487 }
1488 else
1489 {
1490 UNREACHABLE();
1491 return false;
1492 }
1493}
1494
1495bool IsStencilRenderingSupported(GLint internalFormat, const Context *context)
1496{
1497 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1498 if (context && GetInternalFormatInfo(internalFormat, context->getClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1499 {
1500 return internalFormatInfo.mIsStencilRenderable(context, NULL);
1501 }
1502 else
1503 {
1504 UNREACHABLE();
1505 return false;
1506 }
1507}
1508
1509GLuint GetRowPitch(GLint internalFormat, GLenum type, GLuint clientVersion, GLsizei width, GLint alignment)
1510{
1511 ASSERT(alignment > 0 && isPow2(alignment));
1512 return (GetBlockSize(internalFormat, type, clientVersion, width, 1) + alignment - 1) & ~(alignment - 1);
1513}
1514
1515GLuint GetDepthPitch(GLint internalFormat, GLenum type, GLuint clientVersion, GLsizei width, GLsizei height, GLint alignment)
1516{
1517 return (GetBlockSize(internalFormat, type, clientVersion, width, height) + alignment - 1) & ~(alignment - 1);
1518}
1519
1520GLuint GetBlockSize(GLint internalFormat, GLenum type, GLuint clientVersion, GLsizei width, GLsizei height)
1521{
1522 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1523 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1524 {
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]1525 if (internalFormatInfo.mStorageType == Compressed)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1526 {
1527 GLsizei numBlocksWide = (width + internalFormatInfo.mCompressedBlockWidth - 1) / internalFormatInfo.mCompressedBlockWidth;
1528 GLsizei numBlocksHight = (height + internalFormatInfo.mCompressedBlockHeight - 1) / internalFormatInfo.mCompressedBlockHeight;
1529
1530 return (internalFormatInfo.mPixelBits * numBlocksWide * numBlocksHight) / 8;
1531 }
1532 else
1533 {
1534 TypeInfo typeInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1535 if (GetTypeInfo(type, &typeInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1536 {
1537 if (typeInfo.mSpecialInterpretation)
1538 {
1539 return typeInfo.mTypeBytes * width * height;
1540 }
1541 else
1542 {
1543 return internalFormatInfo.mComponentCount * typeInfo.mTypeBytes * width * height;
1544 }
1545 }
1546 else
1547 {
1548 UNREACHABLE();
1549 return 0;
1550 }
1551 }
1552 }
1553 else
1554 {
1555 UNREACHABLE();
1556 return 0;
1557 }
1558}
1559
1560bool IsFormatCompressed(GLint internalFormat, GLuint clientVersion)
1561{
1562 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1563 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1564 {
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]1565 return internalFormatInfo.mStorageType == Compressed;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1566 }
1567 else
1568 {
1569 UNREACHABLE();
1570 return false;
1571 }
1572}
1573
1574GLuint GetCompressedBlockWidth(GLint internalFormat, GLuint clientVersion)
1575{
1576 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1577 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1578 {
1579 return internalFormatInfo.mCompressedBlockWidth;
1580 }
1581 else
1582 {
1583 UNREACHABLE();
1584 return 0;
1585 }
1586}
1587
1588GLuint GetCompressedBlockHeight(GLint internalFormat, GLuint clientVersion)
1589{
1590 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1591 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1592 {
1593 return internalFormatInfo.mCompressedBlockHeight;
1594 }
1595 else
1596 {
1597 UNREACHABLE();
1598 return 0;
1599 }
1600}
1601
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]1602ColorWriteFunction GetColorWriteFunction(GLenum format, GLenum type, GLuint clientVersion)
1603{
1604 static const FormatMap &formats = GetFormatMap(clientVersion);
1605 FormatMap::const_iterator iter = formats.find(FormatTypePair(format, type));
1606 return (iter != formats.end()) ? iter->second.mColorWriteFunction : NULL;
1607}
1608
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1609}