Gitiles
Code Review Sign In
gerrit-public.fairphone.software / platform / external / angle / f23eb28c3ad98344e340b97dcad268a7ec362e8b / . / src / libGLESv2 / formatutils.cpp
blob: c3cc615d1f702c8638f93e74aa8c908777f5afc8 [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;
Nicolas Capens08be89d2013-07-16 16:17:31 -0400[diff] [blame]627 formatInfo.mIsTextureFilterable = AlwaysSupported;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]628 formatInfo.mSupportFunction = supportFunction;
629 return formatInfo;
630 }
631
632 static InternalFormatInfo CompressedFormat(GLuint compressedBlockWidth, GLuint compressedBlockHeight,
633 GLuint compressedBlockSize, GLuint componentCount, GLenum format, GLenum type,
634 ContextSupportCheckFunction supportFunction)
635 {
636 InternalFormatInfo formatInfo;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]637 formatInfo.mCompressedBlockWidth = compressedBlockWidth;
638 formatInfo.mCompressedBlockHeight = compressedBlockHeight;
639 formatInfo.mPixelBits = compressedBlockSize;
640 formatInfo.mComponentCount = componentCount;
641 formatInfo.mFormat = format;
642 formatInfo.mType = type;
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]643 formatInfo.mStorageType = Compressed;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]644 formatInfo.mIsTextureFilterable = AlwaysSupported;
645 formatInfo.mSupportFunction = supportFunction;
646 return formatInfo;
647 }
648};
649
650typedef std::pair<GLuint, InternalFormatInfo> InternalFormatInfoPair;
651typedef std::map<GLuint, InternalFormatInfo> InternalFormatInfoMap;
652
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]653static InternalFormatInfoMap BuildES3InternalFormatInfoMap()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]654{
655 InternalFormatInfoMap map;
656
657 // From ES 3.0.1 spec, table 3.12
658 map.insert(InternalFormatInfoPair(GL_NONE, InternalFormatInfo()));
659
shannonwoods@chromium.orge81ea502013-05-30 00:16:53 +0000[diff] [blame]660 // | Internal format | | R | G | B | A |S | Format | Type | Internal format | SRGB | Color | Texture | Supported |
661 // | | | | | | | | | | type | | renderable | filterable | |
662 map.insert(InternalFormatInfoPair(GL_R8, InternalFormatInfo::RGBAFormat( 8, 0, 0, 0, 0, GL_RED, GL_UNSIGNED_BYTE, NormalizedFixedPoint, false, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
663 map.insert(InternalFormatInfoPair(GL_R8_SNORM, InternalFormatInfo::RGBAFormat( 8, 0, 0, 0, 0, GL_RED, GL_BYTE, NormalizedFixedPoint, false, NeverSupported, AlwaysSupported, AlwaysSupported )));
664 map.insert(InternalFormatInfoPair(GL_RG8, InternalFormatInfo::RGBAFormat( 8, 8, 0, 0, 0, GL_RG, GL_UNSIGNED_BYTE, NormalizedFixedPoint, false, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
665 map.insert(InternalFormatInfoPair(GL_RG8_SNORM, InternalFormatInfo::RGBAFormat( 8, 8, 0, 0, 0, GL_RG, GL_BYTE, NormalizedFixedPoint, false, NeverSupported, AlwaysSupported, AlwaysSupported )));
666 map.insert(InternalFormatInfoPair(GL_RGB8, InternalFormatInfo::RGBAFormat( 8, 8, 8, 0, 0, GL_RGB, GL_UNSIGNED_BYTE, NormalizedFixedPoint, false, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
667 map.insert(InternalFormatInfoPair(GL_RGB8_SNORM, InternalFormatInfo::RGBAFormat( 8, 8, 8, 0, 0, GL_RGB, GL_BYTE, NormalizedFixedPoint, false, NeverSupported, AlwaysSupported, AlwaysSupported )));
Nicolas Capens08be89d2013-07-16 16:17:31 -0400[diff] [blame]668 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]669 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]670 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 )));
671 map.insert(InternalFormatInfoPair(GL_RGBA8, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, NormalizedFixedPoint, false, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
672 map.insert(InternalFormatInfoPair(GL_RGBA8_SNORM, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA, GL_BYTE, NormalizedFixedPoint, false, NeverSupported, AlwaysSupported, AlwaysSupported )));
673 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 )));
674 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 )));
675 map.insert(InternalFormatInfoPair(GL_SRGB8, InternalFormatInfo::RGBAFormat( 8, 8, 8, 0, 0, GL_RGB, GL_UNSIGNED_BYTE, NormalizedFixedPoint, true, NeverSupported, AlwaysSupported, AlwaysSupported )));
676 map.insert(InternalFormatInfoPair(GL_SRGB8_ALPHA8, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, NormalizedFixedPoint, true, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
677 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 )));
678 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 )));
679 map.insert(InternalFormatInfoPair(GL_R8I, InternalFormatInfo::RGBAFormat( 8, 0, 0, 0, 0, GL_RED_INTEGER, GL_BYTE, SignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
680 map.insert(InternalFormatInfoPair(GL_R8UI, InternalFormatInfo::RGBAFormat( 8, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_BYTE, UnsignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
681 map.insert(InternalFormatInfoPair(GL_R16I, InternalFormatInfo::RGBAFormat(16, 0, 0, 0, 0, GL_RED_INTEGER, GL_SHORT, SignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
682 map.insert(InternalFormatInfoPair(GL_R16UI, InternalFormatInfo::RGBAFormat(16, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_SHORT, UnsignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
683 map.insert(InternalFormatInfoPair(GL_R32I, InternalFormatInfo::RGBAFormat(32, 0, 0, 0, 0, GL_RED_INTEGER, GL_INT, SignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
684 map.insert(InternalFormatInfoPair(GL_R32UI, InternalFormatInfo::RGBAFormat(32, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_INT, UnsignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
685 map.insert(InternalFormatInfoPair(GL_RG8I, InternalFormatInfo::RGBAFormat( 8, 8, 0, 0, 0, GL_RG_INTEGER, GL_BYTE, SignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
686 map.insert(InternalFormatInfoPair(GL_RG8UI, InternalFormatInfo::RGBAFormat( 8, 8, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_BYTE, UnsignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
687 map.insert(InternalFormatInfoPair(GL_RG16I, InternalFormatInfo::RGBAFormat(16, 16, 0, 0, 0, GL_RG_INTEGER, GL_SHORT, SignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
688 map.insert(InternalFormatInfoPair(GL_RG16UI, InternalFormatInfo::RGBAFormat(16, 16, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_SHORT, UnsignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
689 map.insert(InternalFormatInfoPair(GL_RG32I, InternalFormatInfo::RGBAFormat(32, 32, 0, 0, 0, GL_RG_INTEGER, GL_INT, SignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
690 map.insert(InternalFormatInfoPair(GL_RG32UI, InternalFormatInfo::RGBAFormat(32, 32, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_INT, UnsignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
691 map.insert(InternalFormatInfoPair(GL_RGB8I, InternalFormatInfo::RGBAFormat( 8, 8, 8, 0, 0, GL_RGB_INTEGER, GL_BYTE, SignedInteger, false, NeverSupported, NeverSupported, AlwaysSupported )));
692 map.insert(InternalFormatInfoPair(GL_RGB8UI, InternalFormatInfo::RGBAFormat( 8, 8, 8, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_BYTE, UnsignedInteger, false, NeverSupported, NeverSupported, AlwaysSupported )));
693 map.insert(InternalFormatInfoPair(GL_RGB16I, InternalFormatInfo::RGBAFormat(16, 16, 16, 0, 0, GL_RGB_INTEGER, GL_SHORT, SignedInteger, false, NeverSupported, NeverSupported, AlwaysSupported )));
694 map.insert(InternalFormatInfoPair(GL_RGB16UI, InternalFormatInfo::RGBAFormat(16, 16, 16, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_SHORT, UnsignedInteger, false, NeverSupported, NeverSupported, AlwaysSupported )));
695 map.insert(InternalFormatInfoPair(GL_RGB32I, InternalFormatInfo::RGBAFormat(32, 32, 32, 0, 0, GL_RGB_INTEGER, GL_INT, SignedInteger, false, NeverSupported, NeverSupported, AlwaysSupported )));
696 map.insert(InternalFormatInfoPair(GL_RGB32UI, InternalFormatInfo::RGBAFormat(32, 32, 32, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_INT, UnsignedInteger, false, NeverSupported, NeverSupported, AlwaysSupported )));
697 map.insert(InternalFormatInfoPair(GL_RGBA8I, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA_INTEGER, GL_BYTE, SignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
698 map.insert(InternalFormatInfoPair(GL_RGBA8UI, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE, UnsignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
699 map.insert(InternalFormatInfoPair(GL_RGBA16I, InternalFormatInfo::RGBAFormat(16, 16, 16, 16, 0, GL_RGBA_INTEGER, GL_SHORT, SignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
700 map.insert(InternalFormatInfoPair(GL_RGBA16UI, InternalFormatInfo::RGBAFormat(16, 16, 16, 16, 0, GL_RGBA_INTEGER, GL_UNSIGNED_SHORT, UnsignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
701 map.insert(InternalFormatInfoPair(GL_RGBA32I, InternalFormatInfo::RGBAFormat(32, 32, 32, 32, 0, GL_RGBA_INTEGER, GL_INT, SignedInteger, false, AlwaysSupported, NeverSupported, AlwaysSupported )));
702 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]703
shannonwoods@chromium.orge81ea502013-05-30 00:16:53 +0000[diff] [blame]704 map.insert(InternalFormatInfoPair(GL_BGRA8_EXT, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, NormalizedFixedPoint, false, AlwaysSupported, AlwaysSupported, AlwaysSupported )));
705 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 )));
706 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]707
708 // 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]709 // | Internal format | | D |S | Format | Type | Internal fmt | SRGB | Color | Texture | Supported |
Nicolas Capens08be89d2013-07-16 16:17:31 -0400[diff] [blame]710 // | | | | | | | type | | renderable | filterable | |
shannonwoods@chromium.orge81ea502013-05-30 00:16:53 +0000[diff] [blame]711 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 )));
712 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 )));
713 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 )));
714 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 )));
715 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 )));
716 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 )));
717 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 )));
718 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]719
720 // Depth stencil formats
Shannon Woods9e73b212013-07-08 10:32:19 -0400[diff] [blame]721 // | Internal format | | D |S | Format | Type | Internal format | Depth | Stencil | Supported |
722 // | | | | | | | type | renderable | renderable | |
Geoff Langa3495322013-06-18 15:16:15 -0400[diff] [blame]723 map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT16, InternalFormatInfo::DepthStencilFormat(16, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, NormalizedFixedPoint, AlwaysSupported, NeverSupported, AlwaysSupported)));
724 map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT24, InternalFormatInfo::DepthStencilFormat(24, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NormalizedFixedPoint, AlwaysSupported, NeverSupported, AlwaysSupported)));
725 map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT32F, InternalFormatInfo::DepthStencilFormat(32, 0, GL_DEPTH_COMPONENT, GL_FLOAT, FloatingPoint, AlwaysSupported, NeverSupported, AlwaysSupported)));
726 map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT32_OES, InternalFormatInfo::DepthStencilFormat(32, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NormalizedFixedPoint, AlwaysSupported, NeverSupported, AlwaysSupported)));
727 map.insert(InternalFormatInfoPair(GL_DEPTH24_STENCIL8, InternalFormatInfo::DepthStencilFormat(24, 8, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, NormalizedFixedPoint, AlwaysSupported, AlwaysSupported, AlwaysSupported)));
728 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]729 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]730
731 // Luminance alpha formats
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]732 // | Internal format | | L | A | Format | Type | Internal format | Supported |
733 // | | | | | | | type | |
734 map.insert(InternalFormatInfoPair(GL_ALPHA8_EXT, InternalFormatInfo::LUMAFormat( 0, 8, GL_ALPHA, GL_UNSIGNED_BYTE, NormalizedFixedPoint, AlwaysSupported)));
735 map.insert(InternalFormatInfoPair(GL_LUMINANCE8_EXT, InternalFormatInfo::LUMAFormat( 8, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, NormalizedFixedPoint, AlwaysSupported)));
736 map.insert(InternalFormatInfoPair(GL_ALPHA32F_EXT, InternalFormatInfo::LUMAFormat( 0, 32, GL_ALPHA, GL_FLOAT, FloatingPoint, AlwaysSupported)));
737 map.insert(InternalFormatInfoPair(GL_LUMINANCE32F_EXT, InternalFormatInfo::LUMAFormat(32, 0, GL_LUMINANCE, GL_FLOAT, FloatingPoint, AlwaysSupported)));
738 map.insert(InternalFormatInfoPair(GL_ALPHA16F_EXT, InternalFormatInfo::LUMAFormat( 0, 16, GL_ALPHA, GL_HALF_FLOAT, FloatingPoint, AlwaysSupported)));
739 map.insert(InternalFormatInfoPair(GL_LUMINANCE16F_EXT, InternalFormatInfo::LUMAFormat(16, 0, GL_LUMINANCE, GL_HALF_FLOAT, FloatingPoint, AlwaysSupported)));
740 map.insert(InternalFormatInfoPair(GL_LUMINANCE8_ALPHA8_EXT, InternalFormatInfo::LUMAFormat( 8, 8, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, NormalizedFixedPoint, AlwaysSupported)));
741 map.insert(InternalFormatInfoPair(GL_LUMINANCE_ALPHA32F_EXT, InternalFormatInfo::LUMAFormat(32, 32, GL_LUMINANCE_ALPHA, GL_FLOAT, FloatingPoint, AlwaysSupported)));
742 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]743
744 // Unsized formats
745 // | Internal format | | Format | Supported |
746 // | | | | |
747 map.insert(InternalFormatInfoPair(GL_ALPHA, InternalFormatInfo::UnsizedFormat(GL_ALPHA, AlwaysSupported)));
748 map.insert(InternalFormatInfoPair(GL_LUMINANCE, InternalFormatInfo::UnsizedFormat(GL_LUMINANCE, AlwaysSupported)));
749 map.insert(InternalFormatInfoPair(GL_LUMINANCE_ALPHA, InternalFormatInfo::UnsizedFormat(GL_LUMINANCE_ALPHA, AlwaysSupported)));
750 map.insert(InternalFormatInfoPair(GL_RGB, InternalFormatInfo::UnsizedFormat(GL_RGB, AlwaysSupported)));
751 map.insert(InternalFormatInfoPair(GL_RGBA, InternalFormatInfo::UnsizedFormat(GL_RGBA, AlwaysSupported)));
752 map.insert(InternalFormatInfoPair(GL_BGRA_EXT, InternalFormatInfo::UnsizedFormat(GL_BGRA_EXT, AlwaysSupported)));
753
754 // Compressed formats, From ES 3.0.1 spec, table 3.16
755 // | Internal format | |W |H | B |C | Format | Type | Supported |
756 // | | | | | S |C | | | |
757 map.insert(InternalFormatInfoPair(GL_COMPRESSED_R11_EAC, InternalFormatInfo::CompressedFormat(4, 4, 64, 1, GL_COMPRESSED_R11_EAC, GL_UNSIGNED_BYTE, UnimplementedSupport)));
758 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SIGNED_R11_EAC, InternalFormatInfo::CompressedFormat(4, 4, 64, 1, GL_COMPRESSED_SIGNED_R11_EAC, GL_UNSIGNED_BYTE, UnimplementedSupport)));
759 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RG11_EAC, InternalFormatInfo::CompressedFormat(4, 4, 128, 2, GL_COMPRESSED_RG11_EAC, GL_UNSIGNED_BYTE, UnimplementedSupport)));
760 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SIGNED_RG11_EAC, InternalFormatInfo::CompressedFormat(4, 4, 128, 2, GL_COMPRESSED_SIGNED_RG11_EAC, GL_UNSIGNED_BYTE, UnimplementedSupport)));
761 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGB8_ETC2, InternalFormatInfo::CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_RGB8_ETC2, GL_UNSIGNED_BYTE, UnimplementedSupport)));
762 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SRGB8_ETC2, InternalFormatInfo::CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_SRGB8_ETC2, GL_UNSIGNED_BYTE, UnimplementedSupport)));
763 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)));
764 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)));
765 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA8_ETC2_EAC, InternalFormatInfo::CompressedFormat(4, 4, 128, 4, GL_COMPRESSED_RGBA8_ETC2_EAC, GL_UNSIGNED_BYTE, UnimplementedSupport)));
766 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)));
767
768 // From GL_EXT_texture_compression_dxt1
769 // | Internal format | |W |H | B |C | Format | Type | Supported |
770 // | | | | | S |C | | | |
771 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)));
772 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)));
773
774 // From GL_ANGLE_texture_compression_dxt3
775 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)));
776
777 // From GL_ANGLE_texture_compression_dxt5
778 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)));
779
780 return map;
781}
782
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]783static InternalFormatInfoMap BuildES2InternalFormatInfoMap()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]784{
785 InternalFormatInfoMap map;
786
787 // From ES 2.0.25 table 4.5
788 map.insert(InternalFormatInfoPair(GL_NONE, InternalFormatInfo()));
789
shannonwoods@chromium.orge81ea502013-05-30 00:16:53 +0000[diff] [blame]790 // | Internal format | | R | G | B | A |S | Format | Type | Internal format | SRGB | Color | Texture | Supported |
791 // | | | | | | | | | | type | | renderable | filterable | |
792 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)));
793 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]794 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]795
796 // Extension formats
shannonwoods@chromium.orge81ea502013-05-30 00:16:53 +0000[diff] [blame]797 map.insert(InternalFormatInfoPair(GL_RGB8_OES, InternalFormatInfo::RGBAFormat( 8, 8, 8, 0, 0, GL_RGB, GL_UNSIGNED_BYTE, NormalizedFixedPoint, false, AlwaysSupported, AlwaysSupported, AlwaysSupported)));
798 map.insert(InternalFormatInfoPair(GL_RGBA8_OES, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, NormalizedFixedPoint, false, AlwaysSupported, AlwaysSupported, AlwaysSupported)));
799 map.insert(InternalFormatInfoPair(GL_BGRA8_EXT, InternalFormatInfo::RGBAFormat( 8, 8, 8, 8, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, NormalizedFixedPoint, false, AlwaysSupported, AlwaysSupported, AlwaysSupported)));
800 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)));
801 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]802
803 // Floating point formats have to query the renderer for support
shannonwoods@chromium.orge81ea502013-05-30 00:16:53 +0000[diff] [blame]804 // | Internal format | | R | G | B | A |S | Format | Type | Internal fmt | SRGB | Color | Texture | Supported |
805 // | | | | | | | | | | type | | renderable | filterable | |
806 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>)));
807 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>)));
808 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>)));
809 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]810
811 // Depth and stencil formats
Shannon Woods9e73b212013-07-08 10:32:19 -0400[diff] [blame]812 // | Internal format | | D |S | Format | Type | Internal format | Depth | Stencil | Supported |
813 // | | | | | | | type | renderable | renderable | |
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]814 map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT32_OES,InternalFormatInfo::DepthStencilFormat(32, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NormalizedFixedPoint, AlwaysSupported, NeverSupported, CheckSupport<&Context::supportsDepthTextures>)));
815 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>)));
816 map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT16, InternalFormatInfo::DepthStencilFormat(16, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, NormalizedFixedPoint, AlwaysSupported, NeverSupported, AlwaysSupported)));
817 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]818
819 // Unsized formats
820 // | Internal format | | Format | Supported |
821 // | | | | |
822 map.insert(InternalFormatInfoPair(GL_ALPHA, InternalFormatInfo::UnsizedFormat(GL_ALPHA, AlwaysSupported)));
823 map.insert(InternalFormatInfoPair(GL_LUMINANCE, InternalFormatInfo::UnsizedFormat(GL_LUMINANCE, AlwaysSupported)));
824 map.insert(InternalFormatInfoPair(GL_LUMINANCE_ALPHA, InternalFormatInfo::UnsizedFormat(GL_LUMINANCE_ALPHA, AlwaysSupported)));
825 map.insert(InternalFormatInfoPair(GL_RGB, InternalFormatInfo::UnsizedFormat(GL_RGB, AlwaysSupported)));
826 map.insert(InternalFormatInfoPair(GL_RGBA, InternalFormatInfo::UnsizedFormat(GL_RGBA, AlwaysSupported)));
827 map.insert(InternalFormatInfoPair(GL_BGRA_EXT, InternalFormatInfo::UnsizedFormat(GL_BGRA_EXT, AlwaysSupported)));
828 map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT, InternalFormatInfo::UnsizedFormat(GL_DEPTH_COMPONENT, AlwaysSupported)));
829 map.insert(InternalFormatInfoPair(GL_DEPTH_STENCIL_OES, InternalFormatInfo::UnsizedFormat(GL_DEPTH_STENCIL_OES, AlwaysSupported)));
830
831 // Luminance alpha formats from GL_EXT_texture_storage
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]832 // | Internal format | | L | A | Format | Type | Internal format | Supported |
833 // | | | | | | | type | |
834 map.insert(InternalFormatInfoPair(GL_ALPHA8_EXT, InternalFormatInfo::LUMAFormat( 0, 8, GL_ALPHA, GL_UNSIGNED_BYTE, NormalizedFixedPoint, AlwaysSupported)));
835 map.insert(InternalFormatInfoPair(GL_LUMINANCE8_EXT, InternalFormatInfo::LUMAFormat( 8, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, NormalizedFixedPoint, AlwaysSupported)));
836 map.insert(InternalFormatInfoPair(GL_ALPHA32F_EXT, InternalFormatInfo::LUMAFormat( 0, 32, GL_ALPHA, GL_FLOAT, FloatingPoint, AlwaysSupported)));
837 map.insert(InternalFormatInfoPair(GL_LUMINANCE32F_EXT, InternalFormatInfo::LUMAFormat(32, 0, GL_LUMINANCE, GL_FLOAT, FloatingPoint, AlwaysSupported)));
838 map.insert(InternalFormatInfoPair(GL_ALPHA16F_EXT, InternalFormatInfo::LUMAFormat( 0, 16, GL_ALPHA, GL_HALF_FLOAT_OES, FloatingPoint, AlwaysSupported)));
839 map.insert(InternalFormatInfoPair(GL_LUMINANCE16F_EXT, InternalFormatInfo::LUMAFormat(16, 0, GL_LUMINANCE, GL_HALF_FLOAT_OES, FloatingPoint, AlwaysSupported)));
840 map.insert(InternalFormatInfoPair(GL_LUMINANCE8_ALPHA8_EXT, InternalFormatInfo::LUMAFormat( 8, 8, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, NormalizedFixedPoint, AlwaysSupported)));
841 map.insert(InternalFormatInfoPair(GL_LUMINANCE_ALPHA32F_EXT, InternalFormatInfo::LUMAFormat(32, 32, GL_LUMINANCE_ALPHA, GL_FLOAT, FloatingPoint, AlwaysSupported)));
842 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]843
844 // From GL_EXT_texture_compression_dxt1
845 // | Internal format | |W |H | B |C |Format | Type | Supported |
846 // | | | | | S |C | | | |
847 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>)));
848 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>)));
849
850 // From GL_ANGLE_texture_compression_dxt3
851 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>)));
852
853 // From GL_ANGLE_texture_compression_dxt5
854 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>)));
855
856 return map;
857}
858
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]859static bool GetInternalFormatInfo(GLint internalFormat, GLuint clientVersion, InternalFormatInfo *outFormatInfo)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]860{
861 const InternalFormatInfoMap* map = NULL;
862
863 if (clientVersion == 2)
864 {
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]865 static const InternalFormatInfoMap formatMap = BuildES2InternalFormatInfoMap();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]866 map = &formatMap;
867 }
868 else if (clientVersion == 3)
869 {
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]870 static const InternalFormatInfoMap formatMap = BuildES3InternalFormatInfoMap();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]871 map = &formatMap;
872 }
873 else
874 {
875 UNREACHABLE();
876 }
877
878 InternalFormatInfoMap::const_iterator iter = map->find(internalFormat);
879 if (iter != map->end())
880 {
881 if (outFormatInfo)
882 {
883 *outFormatInfo = iter->second;
884 }
885 return true;
886 }
887 else
888 {
889 return false;
890 }
891}
892
893typedef std::set<GLenum> FormatSet;
894
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]895static FormatSet BuildES2ValidFormatSet()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]896{
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]897 static const FormatMap &formatMap = GetFormatMap(2);
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]898
899 FormatSet set;
900
901 for (FormatMap::const_iterator i = formatMap.begin(); i != formatMap.end(); i++)
902 {
903 const FormatTypePair& formatPair = i->first;
904 set.insert(formatPair.first);
905 }
906
907 return set;
908}
909
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]910static FormatSet BuildES3ValidFormatSet()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]911{
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]912 static const ES3FormatSet &formatSet = GetES3FormatSet();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]913
914 FormatSet set;
915
916 for (ES3FormatSet::const_iterator i = formatSet.begin(); i != formatSet.end(); i++)
917 {
918 const FormatInfo& formatInfo = *i;
919 set.insert(formatInfo.mFormat);
920 }
921
922 return set;
923}
924
925typedef std::set<GLenum> TypeSet;
926
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]927static TypeSet BuildES2ValidTypeSet()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]928{
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]929 static const FormatMap &formatMap = GetFormatMap(2);
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]930
931 TypeSet set;
932
933 for (FormatMap::const_iterator i = formatMap.begin(); i != formatMap.end(); i++)
934 {
935 const FormatTypePair& formatPair = i->first;
936 set.insert(formatPair.second);
937 }
938
939 return set;
940}
941
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]942static TypeSet BuildES3ValidTypeSet()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]943{
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]944 static const ES3FormatSet &formatSet = GetES3FormatSet();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]945
946 TypeSet set;
947
948 for (ES3FormatSet::const_iterator i = formatSet.begin(); i != formatSet.end(); i++)
949 {
950 const FormatInfo& formatInfo = *i;
951 set.insert(formatInfo.mType);
952 }
953
954 return set;
955}
956
957struct CopyConversion
958{
959 GLenum mTextureFormat;
960 GLenum mFramebufferFormat;
961
962 CopyConversion(GLenum textureFormat, GLenum framebufferFormat)
963 : mTextureFormat(textureFormat), mFramebufferFormat(framebufferFormat) { }
964
965 bool operator<(const CopyConversion& other) const
966 {
967 return memcmp(this, &other, sizeof(CopyConversion)) < 0;
968 }
969};
970
971typedef std::set<CopyConversion> CopyConversionSet;
972
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]973static CopyConversionSet BuildValidES3CopyTexImageCombinations()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]974{
975 CopyConversionSet set;
976
977 // From ES 3.0.1 spec, table 3.15
978 set.insert(CopyConversion(GL_ALPHA, GL_RGBA));
979 set.insert(CopyConversion(GL_LUMINANCE, GL_RED));
980 set.insert(CopyConversion(GL_LUMINANCE, GL_RG));
981 set.insert(CopyConversion(GL_LUMINANCE, GL_RGB));
982 set.insert(CopyConversion(GL_LUMINANCE, GL_RGBA));
983 set.insert(CopyConversion(GL_LUMINANCE_ALPHA, GL_RGBA));
984 set.insert(CopyConversion(GL_RED, GL_RED));
985 set.insert(CopyConversion(GL_RED, GL_RG));
986 set.insert(CopyConversion(GL_RED, GL_RGB));
987 set.insert(CopyConversion(GL_RED, GL_RGBA));
988 set.insert(CopyConversion(GL_RG, GL_RG));
989 set.insert(CopyConversion(GL_RG, GL_RGB));
990 set.insert(CopyConversion(GL_RG, GL_RGBA));
991 set.insert(CopyConversion(GL_RGB, GL_RGB));
992 set.insert(CopyConversion(GL_RGB, GL_RGBA));
993 set.insert(CopyConversion(GL_RGBA, GL_RGBA));
994
Jamie Madillb70e5f72013-07-10 16:57:52 -0400[diff] [blame]995 // Necessary for ANGLE back-buffers
996 set.insert(CopyConversion(GL_ALPHA, GL_BGRA_EXT));
997 set.insert(CopyConversion(GL_LUMINANCE, GL_BGRA_EXT));
998 set.insert(CopyConversion(GL_LUMINANCE_ALPHA, GL_BGRA_EXT));
999 set.insert(CopyConversion(GL_RED, GL_BGRA_EXT));
1000 set.insert(CopyConversion(GL_RG, GL_BGRA_EXT));
1001 set.insert(CopyConversion(GL_RGB, GL_BGRA_EXT));
1002 set.insert(CopyConversion(GL_RGBA, GL_BGRA_EXT));
1003
shannonwoods@chromium.orgffab47d2013-05-30 00:16:22 +0000[diff] [blame]1004 set.insert(CopyConversion(GL_RED_INTEGER, GL_RED_INTEGER));
1005 set.insert(CopyConversion(GL_RED_INTEGER, GL_RG_INTEGER));
1006 set.insert(CopyConversion(GL_RED_INTEGER, GL_RGB_INTEGER));
1007 set.insert(CopyConversion(GL_RED_INTEGER, GL_RGBA_INTEGER));
1008 set.insert(CopyConversion(GL_RG_INTEGER, GL_RG_INTEGER));
1009 set.insert(CopyConversion(GL_RG_INTEGER, GL_RGB_INTEGER));
1010 set.insert(CopyConversion(GL_RG_INTEGER, GL_RGBA_INTEGER));
1011 set.insert(CopyConversion(GL_RGB_INTEGER, GL_RGB_INTEGER));
1012 set.insert(CopyConversion(GL_RGB_INTEGER, GL_RGBA_INTEGER));
1013 set.insert(CopyConversion(GL_RGBA_INTEGER, GL_RGBA_INTEGER));
1014
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1015 return set;
1016}
1017
1018bool IsValidInternalFormat(GLint internalFormat, const Context *context)
1019{
1020 if (!context)
1021 {
1022 return false;
1023 }
1024
1025 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1026 if (GetInternalFormatInfo(internalFormat, context->getClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1027 {
1028 ASSERT(internalFormatInfo.mSupportFunction != NULL);
1029 return internalFormatInfo.mSupportFunction(context);
1030 }
1031 else
1032 {
1033 return false;
1034 }
1035}
1036
1037bool IsValidFormat(GLenum format, GLuint clientVersion)
1038{
1039 if (clientVersion == 2)
1040 {
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1041 static const FormatSet formatSet = BuildES2ValidFormatSet();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1042 return formatSet.find(format) != formatSet.end();
1043 }
1044 else if (clientVersion == 3)
1045 {
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1046 static const FormatSet formatSet = BuildES3ValidFormatSet();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1047 return formatSet.find(format) != formatSet.end();
1048 }
1049 else
1050 {
1051 UNREACHABLE();
1052 return false;
1053 }
1054}
1055
1056bool IsValidType(GLenum type, GLuint clientVersion)
1057{
1058 if (clientVersion == 2)
1059 {
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1060 static const TypeSet typeSet = BuildES2ValidTypeSet();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1061 return typeSet.find(type) != typeSet.end();
1062 }
1063 else if (clientVersion == 3)
1064 {
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1065 static const TypeSet typeSet = BuildES3ValidTypeSet();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1066 return typeSet.find(type) != typeSet.end();
1067 }
1068 else
1069 {
1070 UNREACHABLE();
1071 return false;
1072 }
1073}
1074
1075bool IsValidFormatCombination(GLint internalFormat, GLenum format, GLenum type, GLuint clientVersion)
1076{
1077 if (clientVersion == 2)
1078 {
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]1079 static const FormatMap &formats = GetFormatMap(clientVersion);
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1080 FormatMap::const_iterator iter = formats.find(FormatTypePair(format, type));
1081
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]1082 return (iter != formats.end()) && ((internalFormat == (GLint)type) || (internalFormat == iter->second.mInternalFormat));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1083 }
1084 else if (clientVersion == 3)
1085 {
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1086 static const ES3FormatSet &formats = GetES3FormatSet();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1087 return formats.find(FormatInfo(internalFormat, format, type)) != formats.end();
1088 }
1089 else
1090 {
1091 UNREACHABLE();
1092 return false;
1093 }
1094}
1095
shannonwoods@chromium.orgffab47d2013-05-30 00:16:22 +0000[diff] [blame]1096bool IsValidCopyTexImageCombination(GLenum textureInternalFormat, GLenum frameBufferInternalFormat, GLuint clientVersion)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1097{
shannonwoods@chromium.orgffab47d2013-05-30 00:16:22 +0000[diff] [blame]1098 InternalFormatInfo textureInternalFormatInfo;
1099 InternalFormatInfo framebufferInternalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1100 if (GetInternalFormatInfo(textureInternalFormat, clientVersion, &textureInternalFormatInfo) &&
1101 GetInternalFormatInfo(frameBufferInternalFormat, clientVersion, &framebufferInternalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1102 {
shannonwoods@chromium.orgffab47d2013-05-30 00:16:22 +0000[diff] [blame]1103 if (clientVersion == 2)
1104 {
1105 UNIMPLEMENTED();
1106 return false;
1107 }
1108 else if (clientVersion == 3)
1109 {
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1110 static const CopyConversionSet conversionSet = BuildValidES3CopyTexImageCombinations();
shannonwoods@chromium.orgffab47d2013-05-30 00:16:22 +0000[diff] [blame]1111 const CopyConversion conversion = CopyConversion(textureInternalFormatInfo.mFormat,
1112 framebufferInternalFormatInfo.mFormat);
1113 if (conversionSet.find(conversion) != conversionSet.end())
1114 {
1115 // 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]1116 // must both be signed or unsigned or fixed/floating point and both source and destinations
1117 // must be either both SRGB or both not SRGB
1118
1119 if (textureInternalFormatInfo.mIsSRGB != framebufferInternalFormatInfo.mIsSRGB)
1120 {
1121 return false;
1122 }
shannonwoods@chromium.orgffab47d2013-05-30 00:16:22 +0000[diff] [blame]1123
1124 if ((textureInternalFormatInfo.mStorageType == SignedInteger && framebufferInternalFormatInfo.mStorageType == SignedInteger ) ||
1125 (textureInternalFormatInfo.mStorageType == UnsignedInteger && framebufferInternalFormatInfo.mStorageType == UnsignedInteger))
1126 {
1127 return true;
1128 }
1129
1130 if ((textureInternalFormatInfo.mStorageType == NormalizedFixedPoint || textureInternalFormatInfo.mStorageType == FloatingPoint) &&
1131 (framebufferInternalFormatInfo.mStorageType == NormalizedFixedPoint || framebufferInternalFormatInfo.mStorageType == FloatingPoint))
1132 {
1133 return true;
1134 }
1135 }
1136
1137 return false;
1138 }
1139 else
1140 {
1141 UNREACHABLE();
1142 return false;
1143 }
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1144 }
1145 else
1146 {
1147 UNREACHABLE();
1148 return false;
1149 }
1150}
1151
1152bool IsSizedInternalFormat(GLint internalFormat, GLuint clientVersion)
1153{
1154 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1155 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1156 {
1157 return internalFormatInfo.mPixelBits > 0;
1158 }
1159 else
1160 {
1161 UNREACHABLE();
1162 return false;
1163 }
1164}
1165
1166GLint GetSizedInternalFormat(GLenum format, GLenum type, GLuint clientVersion)
1167{
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]1168 const FormatMap &formats = GetFormatMap(clientVersion);
1169 FormatMap::const_iterator iter = formats.find(FormatTypePair(format, type));
1170 return (iter != formats.end()) ? iter->second.mInternalFormat : GL_NONE;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1171}
1172
1173GLuint GetPixelBytes(GLint internalFormat, GLuint clientVersion)
1174{
1175 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1176 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1177 {
1178 return internalFormatInfo.mPixelBits / 8;
1179 }
1180 else
1181 {
1182 UNREACHABLE();
1183 return 0;
1184 }
1185}
1186
1187GLuint GetAlphaBits(GLint internalFormat, GLuint clientVersion)
1188{
1189 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1190 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1191 {
1192 return internalFormatInfo.mAlphaBits;
1193 }
1194 else
1195 {
1196 UNREACHABLE();
1197 return 0;
1198 }
1199}
1200
1201GLuint GetRedBits(GLint internalFormat, GLuint clientVersion)
1202{
1203 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1204 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1205 {
1206 return internalFormatInfo.mRedBits;
1207 }
1208 else
1209 {
1210 UNREACHABLE();
1211 return 0;
1212 }
1213}
1214
1215GLuint GetGreenBits(GLint internalFormat, GLuint clientVersion)
1216{
1217 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1218 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1219 {
1220 return internalFormatInfo.mGreenBits;
1221 }
1222 else
1223 {
1224 UNREACHABLE();
1225 return 0;
1226 }
1227}
1228
1229GLuint GetBlueBits(GLint internalFormat, GLuint clientVersion)
1230{
1231 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1232 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1233 {
Geoff Lang24159222013-06-05 14:56:32 -0400[diff] [blame]1234 return internalFormatInfo.mBlueBits;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1235 }
1236 else
1237 {
1238 UNREACHABLE();
1239 return 0;
1240 }
1241}
1242
1243GLuint GetLuminanceBits(GLint internalFormat, GLuint clientVersion)
1244{
1245 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1246 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1247 {
1248 return internalFormatInfo.mLuminanceBits;
1249 }
1250 else
1251 {
1252 UNREACHABLE();
1253 return 0;
1254 }
1255}
1256
1257GLuint GetDepthBits(GLint internalFormat, GLuint clientVersion)
1258{
1259 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1260 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1261 {
1262 return internalFormatInfo.mDepthBits;
1263 }
1264 else
1265 {
1266 UNREACHABLE();
1267 return 0;
1268 }
1269}
1270
1271GLuint GetStencilBits(GLint internalFormat, GLuint clientVersion)
1272{
1273 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1274 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1275 {
1276 return internalFormatInfo.mStencilBits;
1277 }
1278 else
1279 {
1280 UNREACHABLE();
1281 return 0;
1282 }
1283}
1284
Geoff Langf23eb282013-07-22 10:52:19 -0400[diff] [blame^]1285GLuint GetTypeBytes(GLenum type)
1286{
1287 TypeInfo typeInfo;
1288 if (GetTypeInfo(type, &typeInfo))
1289 {
1290 return typeInfo.mTypeBytes;
1291 }
1292 else
1293 {
1294 UNREACHABLE();
1295 return 0;
1296 }
1297}
1298
1299bool IsSpecialInterpretationType(GLenum type)
1300{
1301 TypeInfo typeInfo;
1302 if (GetTypeInfo(type, &typeInfo))
1303 {
1304 return typeInfo.mSpecialInterpretation;
1305 }
1306 else
1307 {
1308 UNREACHABLE();
1309 return false;
1310 }
1311}
1312
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1313GLenum GetFormat(GLint internalFormat, GLuint clientVersion)
1314{
1315 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1316 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1317 {
1318 return internalFormatInfo.mFormat;
1319 }
1320 else
1321 {
1322 UNREACHABLE();
1323 return GL_NONE;
1324 }
1325}
1326
1327GLenum GetType(GLint internalFormat, GLuint clientVersion)
1328{
1329 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1330 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1331 {
1332 return internalFormatInfo.mType;
1333 }
1334 else
1335 {
1336 UNREACHABLE();
1337 return GL_NONE;
1338 }
1339}
1340
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]1341bool IsNormalizedFixedPointFormat(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 == NormalizedFixedPoint;
1347 }
1348 else
1349 {
1350 UNREACHABLE();
1351 return false;
1352 }
1353}
1354
1355bool IsIntegerFormat(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 internalFormatInfo.mStorageType == SignedInteger;
1362 }
1363 else
1364 {
1365 UNREACHABLE();
1366 return false;
1367 }
1368}
1369
1370bool IsSignedIntegerFormat(GLint internalFormat, GLuint clientVersion)
1371{
1372 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1373 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]1374 {
1375 return internalFormatInfo.mStorageType == SignedInteger;
1376 }
1377 else
1378 {
1379 UNREACHABLE();
1380 return false;
1381 }
1382}
1383
1384bool IsUnsignedIntegerFormat(GLint internalFormat, GLuint clientVersion)
1385{
1386 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1387 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]1388 {
1389 return internalFormatInfo.mStorageType == UnsignedInteger;
1390 }
1391 else
1392 {
1393 UNREACHABLE();
1394 return false;
1395 }
1396}
1397
1398bool IsFloatingPointFormat(GLint internalFormat, GLuint clientVersion)
1399{
1400 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1401 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]1402 {
1403 return internalFormatInfo.mStorageType == FloatingPoint;
1404 }
1405 else
1406 {
1407 UNREACHABLE();
1408 return false;
1409 }
1410}
1411
shannonwoods@chromium.orge81ea502013-05-30 00:16:53 +0000[diff] [blame]1412bool IsSRGBFormat(GLint internalFormat, GLuint clientVersion)
1413{
1414 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1415 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orge81ea502013-05-30 00:16:53 +0000[diff] [blame]1416 {
1417 return internalFormatInfo.mIsSRGB;
1418 }
1419 else
1420 {
1421 UNREACHABLE();
1422 return false;
1423 }
1424}
1425
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1426bool IsColorRenderingSupported(GLint internalFormat, const rx::Renderer *renderer)
1427{
1428 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1429 if (renderer && GetInternalFormatInfo(internalFormat, renderer->getCurrentClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1430 {
1431 return internalFormatInfo.mIsColorRenderable(NULL, renderer);
1432 }
1433 else
1434 {
1435 UNREACHABLE();
1436 return false;
1437 }
1438}
1439
1440bool IsColorRenderingSupported(GLint internalFormat, const Context *context)
1441{
1442 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1443 if (context && GetInternalFormatInfo(internalFormat, context->getClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1444 {
1445 return internalFormatInfo.mIsColorRenderable(context, NULL);
1446 }
1447 else
1448 {
1449 UNREACHABLE();
1450 return false;
1451 }
1452}
1453
1454bool IsTextureFilteringSupported(GLint internalFormat, const rx::Renderer *renderer)
1455{
1456 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1457 if (renderer && GetInternalFormatInfo(internalFormat, renderer->getCurrentClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1458 {
1459 return internalFormatInfo.mIsTextureFilterable(NULL, renderer);
1460 }
1461 else
1462 {
1463 UNREACHABLE();
1464 return false;
1465 }
1466}
1467
1468bool IsTextureFilteringSupported(GLint internalFormat, const Context *context)
1469{
1470 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1471 if (context && GetInternalFormatInfo(internalFormat, context->getClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1472 {
1473 return internalFormatInfo.mIsTextureFilterable(context, NULL);
1474 }
1475 else
1476 {
1477 UNREACHABLE();
1478 return false;
1479 }
1480}
1481
1482bool IsDepthRenderingSupported(GLint internalFormat, const rx::Renderer *renderer)
1483{
1484 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1485 if (renderer && GetInternalFormatInfo(internalFormat, renderer->getCurrentClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1486 {
1487 return internalFormatInfo.mIsDepthRenderable(NULL, renderer);
1488 }
1489 else
1490 {
1491 UNREACHABLE();
1492 return false;
1493 }
1494}
1495
1496bool IsDepthRenderingSupported(GLint internalFormat, const Context *context)
1497{
1498 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1499 if (context && GetInternalFormatInfo(internalFormat, context->getClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1500 {
1501 return internalFormatInfo.mIsDepthRenderable(context, NULL);
1502 }
1503 else
1504 {
1505 UNREACHABLE();
1506 return false;
1507 }
1508}
1509
1510bool IsStencilRenderingSupported(GLint internalFormat, const rx::Renderer *renderer)
1511{
1512 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1513 if (renderer && GetInternalFormatInfo(internalFormat, renderer->getCurrentClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1514 {
1515 return internalFormatInfo.mIsStencilRenderable(NULL, renderer);
1516 }
1517 else
1518 {
1519 UNREACHABLE();
1520 return false;
1521 }
1522}
1523
1524bool IsStencilRenderingSupported(GLint internalFormat, const Context *context)
1525{
1526 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1527 if (context && GetInternalFormatInfo(internalFormat, context->getClientVersion(), &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1528 {
1529 return internalFormatInfo.mIsStencilRenderable(context, NULL);
1530 }
1531 else
1532 {
1533 UNREACHABLE();
1534 return false;
1535 }
1536}
1537
1538GLuint GetRowPitch(GLint internalFormat, GLenum type, GLuint clientVersion, GLsizei width, GLint alignment)
1539{
1540 ASSERT(alignment > 0 && isPow2(alignment));
1541 return (GetBlockSize(internalFormat, type, clientVersion, width, 1) + alignment - 1) & ~(alignment - 1);
1542}
1543
1544GLuint GetDepthPitch(GLint internalFormat, GLenum type, GLuint clientVersion, GLsizei width, GLsizei height, GLint alignment)
1545{
1546 return (GetBlockSize(internalFormat, type, clientVersion, width, height) + alignment - 1) & ~(alignment - 1);
1547}
1548
1549GLuint GetBlockSize(GLint internalFormat, GLenum type, GLuint clientVersion, GLsizei width, GLsizei height)
1550{
1551 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1552 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1553 {
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]1554 if (internalFormatInfo.mStorageType == Compressed)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1555 {
1556 GLsizei numBlocksWide = (width + internalFormatInfo.mCompressedBlockWidth - 1) / internalFormatInfo.mCompressedBlockWidth;
1557 GLsizei numBlocksHight = (height + internalFormatInfo.mCompressedBlockHeight - 1) / internalFormatInfo.mCompressedBlockHeight;
1558
1559 return (internalFormatInfo.mPixelBits * numBlocksWide * numBlocksHight) / 8;
1560 }
1561 else
1562 {
1563 TypeInfo typeInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1564 if (GetTypeInfo(type, &typeInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1565 {
1566 if (typeInfo.mSpecialInterpretation)
1567 {
1568 return typeInfo.mTypeBytes * width * height;
1569 }
1570 else
1571 {
1572 return internalFormatInfo.mComponentCount * typeInfo.mTypeBytes * width * height;
1573 }
1574 }
1575 else
1576 {
1577 UNREACHABLE();
1578 return 0;
1579 }
1580 }
1581 }
1582 else
1583 {
1584 UNREACHABLE();
1585 return 0;
1586 }
1587}
1588
1589bool IsFormatCompressed(GLint internalFormat, GLuint clientVersion)
1590{
1591 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1592 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1593 {
shannonwoods@chromium.orge19409b2013-05-30 00:16:15 +0000[diff] [blame]1594 return internalFormatInfo.mStorageType == Compressed;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1595 }
1596 else
1597 {
1598 UNREACHABLE();
1599 return false;
1600 }
1601}
1602
1603GLuint GetCompressedBlockWidth(GLint internalFormat, GLuint clientVersion)
1604{
1605 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1606 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1607 {
1608 return internalFormatInfo.mCompressedBlockWidth;
1609 }
1610 else
1611 {
1612 UNREACHABLE();
1613 return 0;
1614 }
1615}
1616
1617GLuint GetCompressedBlockHeight(GLint internalFormat, GLuint clientVersion)
1618{
1619 InternalFormatInfo internalFormatInfo;
Geoff Lang18591b72013-06-07 12:00:15 -0400[diff] [blame]1620 if (GetInternalFormatInfo(internalFormat, clientVersion, &internalFormatInfo))
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1621 {
1622 return internalFormatInfo.mCompressedBlockHeight;
1623 }
1624 else
1625 {
1626 UNREACHABLE();
1627 return 0;
1628 }
1629}
1630
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]1631ColorWriteFunction GetColorWriteFunction(GLenum format, GLenum type, GLuint clientVersion)
1632{
1633 static const FormatMap &formats = GetFormatMap(clientVersion);
1634 FormatMap::const_iterator iter = formats.find(FormatTypePair(format, type));
1635 return (iter != formats.end()) ? iter->second.mColorWriteFunction : NULL;
1636}
1637
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1638}