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gerrit-public.fairphone.software / platform / external / angle / f607c60a1e14d1519ad5055680a80be027db7a46 / . / src / libANGLE / formatutils.cpp
blob: 067b224a346632f520a72d8836935aeed0923bd4 [file] [log] [blame]
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1//
Geoff Langcec35902014-04-16 10:52:36 -0400[diff] [blame]2// Copyright (c) 2013-2014 The ANGLE Project Authors. All rights reserved.
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]3// Use of this source code is governed by a BSD-style license that can be
4// found in the LICENSE file.
5//
6
7// formatutils.cpp: Queries for GL image formats.
8
Shannon Woods4d161ba2014-03-17 18:13:30 -0400[diff] [blame]9#include "common/mathutil.h"
Geoff Lang2b5420c2014-11-19 14:20:15 -0500[diff] [blame]10#include "libANGLE/formatutils.h"
11#include "libANGLE/Context.h"
12#include "libANGLE/Framebuffer.h"
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]13
Jamie Madille2e406c2016-06-02 13:04:10 -0400[diff] [blame]14using namespace angle;
15
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]16namespace gl
17{
18
Jamie Madilla3944d42016-07-22 22:13:26 -0400[diff] [blame]19namespace
20{
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]21// ES2 requires that format is equal to internal format at all glTex*Image2D entry points and the implementation
22// can decide the true, sized, internal format. The ES2FormatMap determines the internal format for all valid
23// format and type combinations.
24
Jamie Madilld2b50a02016-06-09 00:13:35 -0700[diff] [blame]25typedef std::pair<FormatType, GLenum> FormatPair;
26typedef std::map<FormatType, GLenum> FormatMap;
27
Jamie Madill89a0bf52013-09-18 14:36:24 -0400[diff] [blame]28// A helper function to insert data into the format map with fewer characters.
Jamie Madilla3944d42016-07-22 22:13:26 -0400[diff] [blame]29void InsertFormatMapping(FormatMap *map, GLenum format, GLenum type, GLenum internalFormat)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]30{
Jamie Madilld2b50a02016-06-09 00:13:35 -0700[diff] [blame]31 map->insert(FormatPair(FormatType(format, type), internalFormat));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]32}
33
Geoff Lange4a492b2014-06-19 14:14:41 -0400[diff] [blame]34FormatMap BuildFormatMap()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]35{
36 FormatMap map;
37
Jamie Madill1e8dcb52016-07-22 12:01:41 -0400[diff] [blame]38 // clang-format off
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]39 // | Format | Type | Internal format |
40 InsertFormatMapping(&map, GL_RGBA, GL_UNSIGNED_BYTE, GL_RGBA8);
41 InsertFormatMapping(&map, GL_RGBA, GL_BYTE, GL_RGBA8_SNORM);
42 InsertFormatMapping(&map, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, GL_RGBA4);
43 InsertFormatMapping(&map, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, GL_RGB5_A1);
44 InsertFormatMapping(&map, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, GL_RGB10_A2);
45 InsertFormatMapping(&map, GL_RGBA, GL_FLOAT, GL_RGBA32F);
46 InsertFormatMapping(&map, GL_RGBA, GL_HALF_FLOAT, GL_RGBA16F);
47 InsertFormatMapping(&map, GL_RGBA, GL_HALF_FLOAT_OES, GL_RGBA16F);
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]48
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]49 InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE, GL_RGBA8UI);
50 InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_BYTE, GL_RGBA8I);
51 InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_UNSIGNED_SHORT, GL_RGBA16UI);
52 InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_SHORT, GL_RGBA16I);
53 InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_UNSIGNED_INT, GL_RGBA32UI);
54 InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_INT, GL_RGBA32I);
55 InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_UNSIGNED_INT_2_10_10_10_REV, GL_RGB10_A2UI);
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]56
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]57 InsertFormatMapping(&map, GL_RGB, GL_UNSIGNED_BYTE, GL_RGB8);
58 InsertFormatMapping(&map, GL_RGB, GL_BYTE, GL_RGB8_SNORM);
59 InsertFormatMapping(&map, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, GL_RGB565);
60 InsertFormatMapping(&map, GL_RGB, GL_UNSIGNED_INT_10F_11F_11F_REV, GL_R11F_G11F_B10F);
61 InsertFormatMapping(&map, GL_RGB, GL_UNSIGNED_INT_5_9_9_9_REV, GL_RGB9_E5);
62 InsertFormatMapping(&map, GL_RGB, GL_FLOAT, GL_RGB32F);
63 InsertFormatMapping(&map, GL_RGB, GL_HALF_FLOAT, GL_RGB16F);
64 InsertFormatMapping(&map, GL_RGB, GL_HALF_FLOAT_OES, GL_RGB16F);
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]65
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]66 InsertFormatMapping(&map, GL_RGB_INTEGER, GL_UNSIGNED_BYTE, GL_RGB8UI);
67 InsertFormatMapping(&map, GL_RGB_INTEGER, GL_BYTE, GL_RGB8I);
68 InsertFormatMapping(&map, GL_RGB_INTEGER, GL_UNSIGNED_SHORT, GL_RGB16UI);
69 InsertFormatMapping(&map, GL_RGB_INTEGER, GL_SHORT, GL_RGB16I);
70 InsertFormatMapping(&map, GL_RGB_INTEGER, GL_UNSIGNED_INT, GL_RGB32UI);
71 InsertFormatMapping(&map, GL_RGB_INTEGER, GL_INT, GL_RGB32I);
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]72
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]73 InsertFormatMapping(&map, GL_RG, GL_UNSIGNED_BYTE, GL_RG8);
74 InsertFormatMapping(&map, GL_RG, GL_BYTE, GL_RG8_SNORM);
75 InsertFormatMapping(&map, GL_RG, GL_FLOAT, GL_RG32F);
76 InsertFormatMapping(&map, GL_RG, GL_HALF_FLOAT, GL_RG16F);
77 InsertFormatMapping(&map, GL_RG, GL_HALF_FLOAT_OES, GL_RG16F);
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]78
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]79 InsertFormatMapping(&map, GL_RG_INTEGER, GL_UNSIGNED_BYTE, GL_RG8UI);
80 InsertFormatMapping(&map, GL_RG_INTEGER, GL_BYTE, GL_RG8I);
81 InsertFormatMapping(&map, GL_RG_INTEGER, GL_UNSIGNED_SHORT, GL_RG16UI);
82 InsertFormatMapping(&map, GL_RG_INTEGER, GL_SHORT, GL_RG16I);
83 InsertFormatMapping(&map, GL_RG_INTEGER, GL_UNSIGNED_INT, GL_RG32UI);
84 InsertFormatMapping(&map, GL_RG_INTEGER, GL_INT, GL_RG32I);
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]85
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]86 InsertFormatMapping(&map, GL_RED, GL_UNSIGNED_BYTE, GL_R8);
87 InsertFormatMapping(&map, GL_RED, GL_BYTE, GL_R8_SNORM);
88 InsertFormatMapping(&map, GL_RED, GL_FLOAT, GL_R32F);
89 InsertFormatMapping(&map, GL_RED, GL_HALF_FLOAT, GL_R16F);
90 InsertFormatMapping(&map, GL_RED, GL_HALF_FLOAT_OES, GL_R16F);
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]91
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]92 InsertFormatMapping(&map, GL_RED_INTEGER, GL_UNSIGNED_BYTE, GL_R8UI);
93 InsertFormatMapping(&map, GL_RED_INTEGER, GL_BYTE, GL_R8I);
94 InsertFormatMapping(&map, GL_RED_INTEGER, GL_UNSIGNED_SHORT, GL_R16UI);
95 InsertFormatMapping(&map, GL_RED_INTEGER, GL_SHORT, GL_R16I);
96 InsertFormatMapping(&map, GL_RED_INTEGER, GL_UNSIGNED_INT, GL_R32UI);
97 InsertFormatMapping(&map, GL_RED_INTEGER, GL_INT, GL_R32I);
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]98
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]99 InsertFormatMapping(&map, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, GL_LUMINANCE8_ALPHA8_EXT);
100 InsertFormatMapping(&map, GL_LUMINANCE, GL_UNSIGNED_BYTE, GL_LUMINANCE8_EXT);
101 InsertFormatMapping(&map, GL_ALPHA, GL_UNSIGNED_BYTE, GL_ALPHA8_EXT);
102 InsertFormatMapping(&map, GL_LUMINANCE_ALPHA, GL_FLOAT, GL_LUMINANCE_ALPHA32F_EXT);
103 InsertFormatMapping(&map, GL_LUMINANCE, GL_FLOAT, GL_LUMINANCE32F_EXT);
104 InsertFormatMapping(&map, GL_ALPHA, GL_FLOAT, GL_ALPHA32F_EXT);
105 InsertFormatMapping(&map, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT, GL_LUMINANCE_ALPHA16F_EXT);
106 InsertFormatMapping(&map, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT_OES, GL_LUMINANCE_ALPHA16F_EXT);
107 InsertFormatMapping(&map, GL_LUMINANCE, GL_HALF_FLOAT, GL_LUMINANCE16F_EXT);
108 InsertFormatMapping(&map, GL_LUMINANCE, GL_HALF_FLOAT_OES, GL_LUMINANCE16F_EXT);
109 InsertFormatMapping(&map, GL_ALPHA, GL_HALF_FLOAT, GL_ALPHA16F_EXT);
110 InsertFormatMapping(&map, GL_ALPHA, GL_HALF_FLOAT_OES, GL_ALPHA16F_EXT);
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]111
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]112 InsertFormatMapping(&map, GL_BGRA_EXT, GL_UNSIGNED_BYTE, GL_BGRA8_EXT);
113 InsertFormatMapping(&map, GL_BGRA_EXT, GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT, GL_BGRA4_ANGLEX);
114 InsertFormatMapping(&map, GL_BGRA_EXT, GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT, GL_BGR5_A1_ANGLEX);
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]115
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]116 InsertFormatMapping(&map, GL_SRGB_EXT, GL_UNSIGNED_BYTE, GL_SRGB8);
117 InsertFormatMapping(&map, GL_SRGB_ALPHA_EXT, GL_UNSIGNED_BYTE, GL_SRGB8_ALPHA8);
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]118
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]119 InsertFormatMapping(&map, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE, GL_COMPRESSED_RGB_S3TC_DXT1_EXT);
120 InsertFormatMapping(&map, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT);
121 InsertFormatMapping(&map, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, GL_UNSIGNED_BYTE, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE);
122 InsertFormatMapping(&map, GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, GL_UNSIGNED_BYTE, GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE);
Geoff Lang05b05022014-06-11 15:31:45 -0400[diff] [blame]123
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]124 InsertFormatMapping(&map, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, GL_DEPTH_COMPONENT16);
125 InsertFormatMapping(&map, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, GL_DEPTH_COMPONENT32_OES);
126 InsertFormatMapping(&map, GL_DEPTH_COMPONENT, GL_FLOAT, GL_DEPTH_COMPONENT32F);
Geoff Langcec35902014-04-16 10:52:36 -0400[diff] [blame]127
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]128 InsertFormatMapping(&map, GL_STENCIL, GL_UNSIGNED_BYTE, GL_STENCIL_INDEX8);
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]129
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]130 InsertFormatMapping(&map, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, GL_DEPTH24_STENCIL8);
131 InsertFormatMapping(&map, GL_DEPTH_STENCIL, GL_FLOAT_32_UNSIGNED_INT_24_8_REV, GL_DEPTH32F_STENCIL8);
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]132
Jamie Madill1e8dcb52016-07-22 12:01:41 -0400[diff] [blame]133 // From GL_EXT_texture_norm16
134 InsertFormatMapping(&map, GL_RED, GL_UNSIGNED_SHORT, GL_R16_EXT);
135 InsertFormatMapping(&map, GL_RED, GL_SHORT, GL_R16_SNORM_EXT);
136 InsertFormatMapping(&map, GL_RG, GL_UNSIGNED_SHORT, GL_RG16_EXT);
137 InsertFormatMapping(&map, GL_RG, GL_SHORT, GL_RG16_SNORM_EXT);
138 InsertFormatMapping(&map, GL_RGB, GL_UNSIGNED_SHORT, GL_RGB16_EXT);
139 InsertFormatMapping(&map, GL_RGB, GL_SHORT, GL_RGB16_SNORM_EXT);
140 InsertFormatMapping(&map, GL_RGBA, GL_UNSIGNED_SHORT, GL_RGBA16_EXT);
141 InsertFormatMapping(&map, GL_RGBA, GL_SHORT, GL_RGBA16_SNORM_EXT);
142 // clang-format on
143
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]144 return map;
145}
146
Jamie Madilla3944d42016-07-22 22:13:26 -0400[diff] [blame]147GLenum GetSizedFormatInternal(GLenum format, GLenum type)
148{
149 static const FormatMap formatMap = BuildFormatMap();
150 auto iter = formatMap.find(FormatType(format, type));
151 if (iter != formatMap.end())
152 {
153 return iter->second;
154 }
155
156 // TODO(jmadill): Fix this hack.
157 if (format == GL_BGRA_EXT && type == GL_UNSIGNED_SHORT_5_6_5)
158 return GL_BGR565_ANGLEX;
159
160 if (format == GL_NONE)
161 return GL_NONE;
162
163 UNREACHABLE();
164 return GL_NONE;
165}
166
167typedef std::pair<GLenum, InternalFormat> InternalFormatInfoPair;
168typedef std::map<GLenum, InternalFormat> InternalFormatInfoMap;
169
170} // anonymous namespace
171
172FormatType::FormatType() : format(GL_NONE), type(GL_NONE)
173{
174}
175
176FormatType::FormatType(GLenum format_, GLenum type_) : format(format_), type(type_)
177{
178}
179
180bool FormatType::operator<(const FormatType &other) const
181{
182 if (format != other.format)
183 return format < other.format;
184 return type < other.type;
185}
186
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]187Type::Type()
188 : bytes(0),
Olli Etuaho11ffe1b2015-03-24 17:28:18 +0200[diff] [blame]189 bytesShift(0),
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]190 specialInterpretation(false)
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]191{
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]192}
193
Olli Etuaho31f8f4f2015-03-25 16:03:57 +0200[diff] [blame]194static Type GenTypeInfo(GLuint bytes, bool specialInterpretation)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]195{
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]196 Type info;
197 info.bytes = bytes;
Olli Etuaho11ffe1b2015-03-24 17:28:18 +0200[diff] [blame]198 GLuint i = 0;
199 while ((1u << i) < bytes)
200 {
201 ++i;
202 }
203 info.bytesShift = i;
204 ASSERT((1u << info.bytesShift) == bytes);
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]205 info.specialInterpretation = specialInterpretation;
Olli Etuaho31f8f4f2015-03-25 16:03:57 +0200[diff] [blame]206 return info;
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]207}
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]208
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]209bool operator<(const Type& a, const Type& b)
210{
211 return memcmp(&a, &b, sizeof(Type)) < 0;
212}
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]213
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]214// Information about internal formats
Geoff Lang493daf52014-07-03 13:38:44 -0400[diff] [blame]215static bool AlwaysSupported(GLuint, const Extensions &)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]216{
Geoff Lang493daf52014-07-03 13:38:44 -0400[diff] [blame]217 return true;
218}
219
Geoff Lang493daf52014-07-03 13:38:44 -0400[diff] [blame]220static bool NeverSupported(GLuint, const Extensions &)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]221{
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]222 return false;
223}
224
Geoff Lange4a492b2014-06-19 14:14:41 -0400[diff] [blame]225template <GLuint minCoreGLVersion>
Geoff Langabce7622014-09-19 16:13:00 -0400[diff] [blame]226static bool RequireES(GLuint clientVersion, const Extensions &)
Geoff Lange4a492b2014-06-19 14:14:41 -0400[diff] [blame]227{
228 return clientVersion >= minCoreGLVersion;
229}
230
Geoff Langcec35902014-04-16 10:52:36 -0400[diff] [blame]231// Pointer to a boolean memeber of the Extensions struct
232typedef bool(Extensions::*ExtensionBool);
233
234// Check support for a single extension
235template <ExtensionBool bool1>
Geoff Langabce7622014-09-19 16:13:00 -0400[diff] [blame]236static bool RequireExt(GLuint, const Extensions & extensions)
Geoff Langcec35902014-04-16 10:52:36 -0400[diff] [blame]237{
Geoff Lange4a492b2014-06-19 14:14:41 -0400[diff] [blame]238 return extensions.*bool1;
239}
240
241// Check for a minimum client version or a single extension
242template <GLuint minCoreGLVersion, ExtensionBool bool1>
Geoff Langabce7622014-09-19 16:13:00 -0400[diff] [blame]243static bool RequireESOrExt(GLuint clientVersion, const Extensions &extensions)
Geoff Lange4a492b2014-06-19 14:14:41 -0400[diff] [blame]244{
245 return clientVersion >= minCoreGLVersion || extensions.*bool1;
246}
247
248// Check for a minimum client version or two extensions
249template <GLuint minCoreGLVersion, ExtensionBool bool1, ExtensionBool bool2>
Geoff Langabce7622014-09-19 16:13:00 -0400[diff] [blame]250static bool RequireESOrExtAndExt(GLuint clientVersion, const Extensions &extensions)
Geoff Lange4a492b2014-06-19 14:14:41 -0400[diff] [blame]251{
Geoff Langabce7622014-09-19 16:13:00 -0400[diff] [blame]252 return clientVersion >= minCoreGLVersion || (extensions.*bool1 && extensions.*bool2);
253}
254
255// Check for a minimum client version or at least one of two extensions
256template <GLuint minCoreGLVersion, ExtensionBool bool1, ExtensionBool bool2>
257static bool RequireESOrExtOrExt(GLuint clientVersion, const Extensions &extensions)
258{
259 return clientVersion >= minCoreGLVersion || extensions.*bool1 || extensions.*bool2;
Geoff Langcec35902014-04-16 10:52:36 -0400[diff] [blame]260}
261
262// Check support for two extensions
263template <ExtensionBool bool1, ExtensionBool bool2>
Geoff Langabce7622014-09-19 16:13:00 -0400[diff] [blame]264static bool RequireExtAndExt(GLuint, const Extensions &extensions)
Geoff Langcec35902014-04-16 10:52:36 -0400[diff] [blame]265{
Geoff Langabce7622014-09-19 16:13:00 -0400[diff] [blame]266 return extensions.*bool1 && extensions.*bool2;
Geoff Langcec35902014-04-16 10:52:36 -0400[diff] [blame]267}
268
Geoff Lang60ad73d2015-10-23 10:08:44 -0400[diff] [blame]269// Check support for either of two extensions
270template <ExtensionBool bool1, ExtensionBool bool2>
271static bool RequireExtOrExt(GLuint, const Extensions &extensions)
272{
273 return extensions.*bool1 || extensions.*bool2;
274}
275
Jamie Madillcd089732015-12-17 09:53:09 -0500[diff] [blame]276// Special function for half float formats with three or four channels.
277static bool HalfFloatSupport(GLuint clientVersion, const Extensions &extensions)
278{
279 return clientVersion >= 3 || extensions.textureHalfFloat;
280}
281
282static bool HalfFloatRenderableSupport(GLuint clientVersion, const Extensions &extensions)
283{
284 return HalfFloatSupport(clientVersion, extensions) && extensions.colorBufferHalfFloat;
285}
286
287// Special function for half float formats with one or two channels.
288static bool HalfFloatSupportRG(GLuint clientVersion, const Extensions &extensions)
289{
290 return clientVersion >= 3 || (extensions.textureHalfFloat && extensions.textureRG);
291}
292
293static bool HalfFloatRenderableSupportRG(GLuint clientVersion, const Extensions &extensions)
294{
295 return HalfFloatSupportRG(clientVersion, extensions) && extensions.colorBufferHalfFloat;
296}
297
298// Special function for float formats with three or four channels.
299static bool FloatSupport(GLuint clientVersion, const Extensions &extensions)
300{
301 return clientVersion >= 3 || extensions.textureFloat;
302}
303
304static bool FloatRenderableSupport(GLuint clientVersion, const Extensions &extensions)
305{
306 // We don't expose colorBufferFloat in ES2, but we silently support rendering to float.
307 return FloatSupport(clientVersion, extensions) &&
308 (extensions.colorBufferFloat || clientVersion == 2);
309}
310
311// Special function for float formats with one or two channels.
312static bool FloatSupportRG(GLuint clientVersion, const Extensions &extensions)
313{
314 return clientVersion >= 3 || (extensions.textureFloat && extensions.textureRG);
315}
316
317static bool FloatRenderableSupportRG(GLuint clientVersion, const Extensions &extensions)
318{
319 // We don't expose colorBufferFloat in ES2, but we silently support rendering to float.
320 return FloatSupportRG(clientVersion, extensions) &&
321 (extensions.colorBufferFloat || clientVersion == 2);
322}
323
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]324InternalFormat::InternalFormat()
Jamie Madilla3944d42016-07-22 22:13:26 -0400[diff] [blame]325 : internalFormat(GL_NONE),
326 redBits(0),
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]327 greenBits(0),
328 blueBits(0),
329 luminanceBits(0),
330 alphaBits(0),
331 sharedBits(0),
332 depthBits(0),
333 stencilBits(0),
334 pixelBytes(0),
335 componentCount(0),
Corentin Wallezbc99bb62015-05-14 17:42:20 -0400[diff] [blame]336 compressed(false),
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]337 compressedBlockWidth(0),
338 compressedBlockHeight(0),
339 format(GL_NONE),
340 type(GL_NONE),
341 componentType(GL_NONE),
342 colorEncoding(GL_NONE),
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]343 textureSupport(NeverSupported),
344 renderSupport(NeverSupported),
345 filterSupport(NeverSupported)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]346{
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]347}
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]348
Jamie Madilla3944d42016-07-22 22:13:26 -0400[diff] [blame]349bool InternalFormat::isLUMA() const
350{
351 return ((redBits + greenBits + blueBits + depthBits + stencilBits) == 0 &&
352 (luminanceBits + alphaBits) > 0);
353}
354
Geoff Langf607c602016-09-21 11:46:48 -0400[diff] [blame^]355GLenum InternalFormat::getReadPixelsFormat() const
356{
357 return format;
358}
359
360GLenum InternalFormat::getReadPixelsType() const
361{
362 switch (type)
363 {
364 case GL_HALF_FLOAT:
365 // The internal format may have a type of GL_HALF_FLOAT but when exposing this type as
366 // the IMPLEMENTATION_READ_TYPE, only HALF_FLOAT_OES is allowed by
367 // OES_texture_half_float
368 return GL_HALF_FLOAT_OES;
369
370 default:
371 return type;
372 }
373}
374
Jamie Madilla3944d42016-07-22 22:13:26 -0400[diff] [blame]375Format::Format(GLenum internalFormat) : Format(GetInternalFormatInfo(internalFormat))
376{
377}
378
379Format::Format(const InternalFormat &internalFormat)
380 : info(&internalFormat), format(info->format), type(info->type), sized(true)
381{
382 ASSERT((info->pixelBytes > 0 && format != GL_NONE && type != GL_NONE) ||
383 internalFormat.format == GL_NONE);
384}
385
386Format::Format(GLenum internalFormat, GLenum format, GLenum type)
387 : info(nullptr), format(format), type(type), sized(false)
388{
389 const auto &plainInfo = GetInternalFormatInfo(internalFormat);
390 sized = plainInfo.pixelBytes > 0;
391 info = (sized ? &plainInfo : &GetInternalFormatInfo(GetSizedFormatInternal(format, type)));
392 ASSERT(format == GL_NONE || info->pixelBytes > 0);
393}
394
395Format::Format(const Format &other) = default;
396Format &Format::operator=(const Format &other) = default;
397
398GLenum Format::asSized() const
399{
400 return sized ? info->internalFormat : GetSizedFormatInternal(format, type);
401}
402
403bool Format::valid() const
404{
405 return info->format != GL_NONE;
406}
407
408// static
409bool Format::SameSized(const Format &a, const Format &b)
410{
411 return (a.info == b.info);
412}
413
414// static
415Format Format::Invalid()
416{
417 static Format invalid(GL_NONE, GL_NONE, GL_NONE);
418 return invalid;
419}
420
421bool InternalFormat::operator==(const InternalFormat &other) const
422{
423 // We assume there are no duplicates.
424 ASSERT((this == &other) == (internalFormat == other.internalFormat));
425 return internalFormat == other.internalFormat;
426}
427
428bool InternalFormat::operator!=(const InternalFormat &other) const
429{
430 // We assume there are no duplicates.
431 ASSERT((this != &other) == (internalFormat != other.internalFormat));
432 return internalFormat != other.internalFormat;
433}
434
435static void AddUnsizedFormat(InternalFormatInfoMap *map,
436 GLenum internalFormat,
437 GLenum format,
438 InternalFormat::SupportCheckFunction textureSupport,
439 InternalFormat::SupportCheckFunction renderSupport,
440 InternalFormat::SupportCheckFunction filterSupport)
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]441{
442 InternalFormat formatInfo;
Jamie Madilla3944d42016-07-22 22:13:26 -0400[diff] [blame]443 formatInfo.internalFormat = internalFormat;
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]444 formatInfo.format = format;
445 formatInfo.textureSupport = textureSupport;
446 formatInfo.renderSupport = renderSupport;
447 formatInfo.filterSupport = filterSupport;
Jamie Madilla3944d42016-07-22 22:13:26 -0400[diff] [blame]448 ASSERT(map->count(internalFormat) == 0);
449 (*map)[internalFormat] = formatInfo;
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]450}
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]451
Jamie Madilla3944d42016-07-22 22:13:26 -0400[diff] [blame]452void AddRGBAFormat(InternalFormatInfoMap *map,
453 GLenum internalFormat,
454 GLuint red,
455 GLuint green,
456 GLuint blue,
457 GLuint alpha,
458 GLuint shared,
459 GLenum format,
460 GLenum type,
461 GLenum componentType,
462 bool srgb,
463 InternalFormat::SupportCheckFunction textureSupport,
464 InternalFormat::SupportCheckFunction renderSupport,
465 InternalFormat::SupportCheckFunction filterSupport)
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]466{
467 InternalFormat formatInfo;
Jamie Madilla3944d42016-07-22 22:13:26 -0400[diff] [blame]468 formatInfo.internalFormat = internalFormat;
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]469 formatInfo.redBits = red;
470 formatInfo.greenBits = green;
471 formatInfo.blueBits = blue;
472 formatInfo.alphaBits = alpha;
473 formatInfo.sharedBits = shared;
474 formatInfo.pixelBytes = (red + green + blue + alpha + shared) / 8;
475 formatInfo.componentCount = ((red > 0) ? 1 : 0) + ((green > 0) ? 1 : 0) + ((blue > 0) ? 1 : 0) + ((alpha > 0) ? 1 : 0);
476 formatInfo.format = format;
477 formatInfo.type = type;
478 formatInfo.componentType = componentType;
479 formatInfo.colorEncoding = (srgb ? GL_SRGB : GL_LINEAR);
480 formatInfo.textureSupport = textureSupport;
481 formatInfo.renderSupport = renderSupport;
482 formatInfo.filterSupport = filterSupport;
Jamie Madilla3944d42016-07-22 22:13:26 -0400[diff] [blame]483 ASSERT(map->count(internalFormat) == 0);
484 (*map)[internalFormat] = formatInfo;
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]485}
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]486
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]487static InternalFormat LUMAFormat(GLuint luminance, GLuint alpha, GLenum format, GLenum type, GLenum componentType,
488 InternalFormat::SupportCheckFunction textureSupport,
489 InternalFormat::SupportCheckFunction renderSupport,
490 InternalFormat::SupportCheckFunction filterSupport)
491{
492 InternalFormat formatInfo;
Jamie Madilla3944d42016-07-22 22:13:26 -0400[diff] [blame]493 formatInfo.internalFormat = GetSizedFormatInternal(format, type);
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]494 formatInfo.luminanceBits = luminance;
495 formatInfo.alphaBits = alpha;
496 formatInfo.pixelBytes = (luminance + alpha) / 8;
497 formatInfo.componentCount = ((luminance > 0) ? 1 : 0) + ((alpha > 0) ? 1 : 0);
498 formatInfo.format = format;
499 formatInfo.type = type;
500 formatInfo.componentType = componentType;
501 formatInfo.colorEncoding = GL_LINEAR;
502 formatInfo.textureSupport = textureSupport;
503 formatInfo.renderSupport = renderSupport;
504 formatInfo.filterSupport = filterSupport;
505 return formatInfo;
506}
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]507
Jamie Madilla3944d42016-07-22 22:13:26 -0400[diff] [blame]508void AddDepthStencilFormat(InternalFormatInfoMap *map,
509 GLenum internalFormat,
510 GLuint depthBits,
511 GLuint stencilBits,
512 GLuint unusedBits,
513 GLenum format,
514 GLenum type,
515 GLenum componentType,
516 InternalFormat::SupportCheckFunction textureSupport,
517 InternalFormat::SupportCheckFunction renderSupport,
518 InternalFormat::SupportCheckFunction filterSupport)
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]519{
520 InternalFormat formatInfo;
Jamie Madilla3944d42016-07-22 22:13:26 -0400[diff] [blame]521 formatInfo.internalFormat = internalFormat;
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]522 formatInfo.depthBits = depthBits;
523 formatInfo.stencilBits = stencilBits;
524 formatInfo.pixelBytes = (depthBits + stencilBits + unusedBits) / 8;
525 formatInfo.componentCount = ((depthBits > 0) ? 1 : 0) + ((stencilBits > 0) ? 1 : 0);
526 formatInfo.format = format;
527 formatInfo.type = type;
528 formatInfo.componentType = componentType;
529 formatInfo.colorEncoding = GL_LINEAR;
530 formatInfo.textureSupport = textureSupport;
531 formatInfo.renderSupport = renderSupport;
532 formatInfo.filterSupport = filterSupport;
Jamie Madilla3944d42016-07-22 22:13:26 -0400[diff] [blame]533 ASSERT(map->count(internalFormat) == 0);
534 (*map)[internalFormat] = formatInfo;
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]535}
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]536
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]537static InternalFormat CompressedFormat(GLuint compressedBlockWidth, GLuint compressedBlockHeight, GLuint compressedBlockSize,
538 GLuint componentCount, GLenum format, GLenum type, bool srgb,
539 InternalFormat::SupportCheckFunction textureSupport,
540 InternalFormat::SupportCheckFunction renderSupport,
541 InternalFormat::SupportCheckFunction filterSupport)
542{
543 InternalFormat formatInfo;
Jamie Madilla3944d42016-07-22 22:13:26 -0400[diff] [blame]544 formatInfo.internalFormat = format;
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]545 formatInfo.compressedBlockWidth = compressedBlockWidth;
546 formatInfo.compressedBlockHeight = compressedBlockHeight;
547 formatInfo.pixelBytes = compressedBlockSize / 8;
548 formatInfo.componentCount = componentCount;
549 formatInfo.format = format;
550 formatInfo.type = type;
551 formatInfo.componentType = GL_UNSIGNED_NORMALIZED;
552 formatInfo.colorEncoding = (srgb ? GL_SRGB : GL_LINEAR);
553 formatInfo.compressed = true;
554 formatInfo.textureSupport = textureSupport;
555 formatInfo.renderSupport = renderSupport;
556 formatInfo.filterSupport = filterSupport;
557 return formatInfo;
558}
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]559
Geoff Lange4a492b2014-06-19 14:14:41 -0400[diff] [blame]560static InternalFormatInfoMap BuildInternalFormatInfoMap()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]561{
562 InternalFormatInfoMap map;
563
564 // From ES 3.0.1 spec, table 3.12
Jamie Madilla3944d42016-07-22 22:13:26 -0400[diff] [blame]565 map.insert(InternalFormatInfoPair(GL_NONE, InternalFormat()));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]566
Jamie Madilla3944d42016-07-22 22:13:26 -0400[diff] [blame]567 // clang-format off
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]568
Jamie Madilla3944d42016-07-22 22:13:26 -0400[diff] [blame]569 // | Internal format | R | G | B | A |S | Format | Type | Component type | SRGB | Texture supported | Renderable | Filterable |
570 AddRGBAFormat(&map, GL_R8, 8, 0, 0, 0, 0, GL_RED, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireESOrExt<3, &Extensions::textureRG>, RequireESOrExt<3, &Extensions::textureRG>, AlwaysSupported);
571 AddRGBAFormat(&map, GL_R8_SNORM, 8, 0, 0, 0, 0, GL_RED, GL_BYTE, GL_SIGNED_NORMALIZED, false, RequireES<3>, NeverSupported, AlwaysSupported);
572 AddRGBAFormat(&map, GL_RG8, 8, 8, 0, 0, 0, GL_RG, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireESOrExt<3, &Extensions::textureRG>, RequireESOrExt<3, &Extensions::textureRG>, AlwaysSupported);
573 AddRGBAFormat(&map, GL_RG8_SNORM, 8, 8, 0, 0, 0, GL_RG, GL_BYTE, GL_SIGNED_NORMALIZED, false, RequireES<3>, NeverSupported, AlwaysSupported);
574 AddRGBAFormat(&map, GL_RGB8, 8, 8, 8, 0, 0, GL_RGB, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireESOrExt<3, &Extensions::rgb8rgba8>, RequireESOrExt<3, &Extensions::rgb8rgba8>, AlwaysSupported);
575 AddRGBAFormat(&map, GL_RGB8_SNORM, 8, 8, 8, 0, 0, GL_RGB, GL_BYTE, GL_SIGNED_NORMALIZED, false, RequireES<3>, NeverSupported, AlwaysSupported);
576 AddRGBAFormat(&map, GL_RGB565, 5, 6, 5, 0, 0, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, GL_UNSIGNED_NORMALIZED, false, RequireES<2>, RequireES<2>, AlwaysSupported);
577 AddRGBAFormat(&map, GL_RGBA4, 4, 4, 4, 4, 0, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, GL_UNSIGNED_NORMALIZED, false, RequireES<2>, RequireES<2>, AlwaysSupported);
578 AddRGBAFormat(&map, GL_RGB5_A1, 5, 5, 5, 1, 0, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, GL_UNSIGNED_NORMALIZED, false, RequireES<2>, RequireES<2>, AlwaysSupported);
579 AddRGBAFormat(&map, GL_RGBA8, 8, 8, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireESOrExt<3, &Extensions::rgb8rgba8>, RequireESOrExt<3, &Extensions::rgb8rgba8>, AlwaysSupported);
580 AddRGBAFormat(&map, GL_RGBA8_SNORM, 8, 8, 8, 8, 0, GL_RGBA, GL_BYTE, GL_SIGNED_NORMALIZED, false, RequireES<3>, NeverSupported, AlwaysSupported);
581 AddRGBAFormat(&map, GL_RGB10_A2, 10, 10, 10, 2, 0, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, GL_UNSIGNED_NORMALIZED, false, RequireES<3>, RequireES<3>, AlwaysSupported);
582 AddRGBAFormat(&map, GL_RGB10_A2UI, 10, 10, 10, 2, 0, GL_RGBA_INTEGER, GL_UNSIGNED_INT_2_10_10_10_REV, GL_UNSIGNED_INT, false, RequireES<3>, RequireES<3>, NeverSupported);
583 AddRGBAFormat(&map, GL_SRGB8, 8, 8, 8, 0, 0, GL_RGB, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, true, RequireESOrExt<3, &Extensions::sRGB>, NeverSupported, AlwaysSupported);
584 AddRGBAFormat(&map, GL_SRGB8_ALPHA8, 8, 8, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, true, RequireESOrExt<3, &Extensions::sRGB>, RequireESOrExt<3, &Extensions::sRGB>, AlwaysSupported);
585 AddRGBAFormat(&map, GL_RGB9_E5, 9, 9, 9, 0, 5, GL_RGB, GL_UNSIGNED_INT_5_9_9_9_REV, GL_FLOAT, false, RequireES<3>, NeverSupported, AlwaysSupported);
586 AddRGBAFormat(&map, GL_R8I, 8, 0, 0, 0, 0, GL_RED_INTEGER, GL_BYTE, GL_INT, false, RequireES<3>, RequireES<3>, NeverSupported);
587 AddRGBAFormat(&map, GL_R8UI, 8, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, RequireES<3>, RequireES<3>, NeverSupported);
588 AddRGBAFormat(&map, GL_R16I, 16, 0, 0, 0, 0, GL_RED_INTEGER, GL_SHORT, GL_INT, false, RequireES<3>, RequireES<3>, NeverSupported);
589 AddRGBAFormat(&map, GL_R16UI, 16, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, RequireES<3>, RequireES<3>, NeverSupported);
590 AddRGBAFormat(&map, GL_R32I, 32, 0, 0, 0, 0, GL_RED_INTEGER, GL_INT, GL_INT, false, RequireES<3>, RequireES<3>, NeverSupported);
591 AddRGBAFormat(&map, GL_R32UI, 32, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, RequireES<3>, RequireES<3>, NeverSupported);
592 AddRGBAFormat(&map, GL_RG8I, 8, 8, 0, 0, 0, GL_RG_INTEGER, GL_BYTE, GL_INT, false, RequireES<3>, RequireES<3>, NeverSupported);
593 AddRGBAFormat(&map, GL_RG8UI, 8, 8, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, RequireES<3>, RequireES<3>, NeverSupported);
594 AddRGBAFormat(&map, GL_RG16I, 16, 16, 0, 0, 0, GL_RG_INTEGER, GL_SHORT, GL_INT, false, RequireES<3>, RequireES<3>, NeverSupported);
595 AddRGBAFormat(&map, GL_RG16UI, 16, 16, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, RequireES<3>, RequireES<3>, NeverSupported);
596 AddRGBAFormat(&map, GL_RG32I, 32, 32, 0, 0, 0, GL_RG_INTEGER, GL_INT, GL_INT, false, RequireES<3>, RequireES<3>, NeverSupported);
597 AddRGBAFormat(&map, GL_R11F_G11F_B10F, 11, 11, 10, 0, 0, GL_RGB, GL_UNSIGNED_INT_10F_11F_11F_REV, GL_FLOAT, false, RequireES<3>, RequireExt<&Extensions::colorBufferFloat>, AlwaysSupported);
598 AddRGBAFormat(&map, GL_RG32UI, 32, 32, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, RequireES<3>, RequireES<3>, NeverSupported);
599 AddRGBAFormat(&map, GL_RGB8I, 8, 8, 8, 0, 0, GL_RGB_INTEGER, GL_BYTE, GL_INT, false, RequireES<3>, NeverSupported, NeverSupported);
600 AddRGBAFormat(&map, GL_RGB8UI, 8, 8, 8, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, RequireES<3>, NeverSupported, NeverSupported);
601 AddRGBAFormat(&map, GL_RGB16I, 16, 16, 16, 0, 0, GL_RGB_INTEGER, GL_SHORT, GL_INT, false, RequireES<3>, NeverSupported, NeverSupported);
602 AddRGBAFormat(&map, GL_RGB16UI, 16, 16, 16, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, RequireES<3>, NeverSupported, NeverSupported);
603 AddRGBAFormat(&map, GL_RGB32I, 32, 32, 32, 0, 0, GL_RGB_INTEGER, GL_INT, GL_INT, false, RequireES<3>, NeverSupported, NeverSupported);
604 AddRGBAFormat(&map, GL_RGB32UI, 32, 32, 32, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, RequireES<3>, NeverSupported, NeverSupported);
605 AddRGBAFormat(&map, GL_RGBA8I, 8, 8, 8, 8, 0, GL_RGBA_INTEGER, GL_BYTE, GL_INT, false, RequireES<3>, RequireES<3>, NeverSupported);
606 AddRGBAFormat(&map, GL_RGBA8UI, 8, 8, 8, 8, 0, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, RequireES<3>, RequireES<3>, NeverSupported);
607 AddRGBAFormat(&map, GL_RGBA16I, 16, 16, 16, 16, 0, GL_RGBA_INTEGER, GL_SHORT, GL_INT, false, RequireES<3>, RequireES<3>, NeverSupported);
608 AddRGBAFormat(&map, GL_RGBA16UI, 16, 16, 16, 16, 0, GL_RGBA_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, RequireES<3>, RequireES<3>, NeverSupported);
609 AddRGBAFormat(&map, GL_RGBA32I, 32, 32, 32, 32, 0, GL_RGBA_INTEGER, GL_INT, GL_INT, false, RequireES<3>, RequireES<3>, NeverSupported);
610 AddRGBAFormat(&map, GL_RGBA32UI, 32, 32, 32, 32, 0, GL_RGBA_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, RequireES<3>, RequireES<3>, NeverSupported);
611
612 AddRGBAFormat(&map, GL_BGRA8_EXT, 8, 8, 8, 8, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureFormatBGRA8888>, RequireExt<&Extensions::textureFormatBGRA8888>, AlwaysSupported);
613 AddRGBAFormat(&map, GL_BGRA4_ANGLEX, 4, 4, 4, 4, 0, GL_BGRA_EXT, GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureFormatBGRA8888>, RequireExt<&Extensions::textureFormatBGRA8888>, AlwaysSupported);
614 AddRGBAFormat(&map, GL_BGR5_A1_ANGLEX, 5, 5, 5, 1, 0, GL_BGRA_EXT, GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureFormatBGRA8888>, RequireExt<&Extensions::textureFormatBGRA8888>, AlwaysSupported);
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]615
Jamie Madillec0b5802016-07-04 13:11:59 -0400[diff] [blame]616 // Special format which is not really supported, so always false for all supports.
Jamie Madilla3944d42016-07-22 22:13:26 -0400[diff] [blame]617 AddRGBAFormat(&map, GL_BGR565_ANGLEX, 5, 6, 5, 1, 0, GL_BGRA_EXT, GL_UNSIGNED_SHORT_5_6_5, GL_UNSIGNED_NORMALIZED, false, NeverSupported, NeverSupported, NeverSupported);
Jamie Madillec0b5802016-07-04 13:11:59 -0400[diff] [blame]618
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]619 // Floating point renderability and filtering is provided by OES_texture_float and OES_texture_half_float
Jamie Madilla3944d42016-07-22 22:13:26 -0400[diff] [blame]620 // | Internal format | D |S | Format | Type | Comp | SRGB | Texture supported | Renderable | Filterable |
621 // | | | | | | type | | | | |
622 AddRGBAFormat(&map, GL_R16F, 16, 0, 0, 0, 0, GL_RED, GL_HALF_FLOAT, GL_FLOAT, false, HalfFloatSupportRG, HalfFloatRenderableSupportRG, RequireExt<&Extensions::textureHalfFloatLinear>);
623 AddRGBAFormat(&map, GL_RG16F, 16, 16, 0, 0, 0, GL_RG, GL_HALF_FLOAT, GL_FLOAT, false, HalfFloatSupportRG, HalfFloatRenderableSupportRG, RequireExt<&Extensions::textureHalfFloatLinear>);
624 AddRGBAFormat(&map, GL_RGB16F, 16, 16, 16, 0, 0, GL_RGB, GL_HALF_FLOAT, GL_FLOAT, false, HalfFloatSupport, HalfFloatRenderableSupport, RequireExt<&Extensions::textureHalfFloatLinear>);
625 AddRGBAFormat(&map, GL_RGBA16F, 16, 16, 16, 16, 0, GL_RGBA, GL_HALF_FLOAT, GL_FLOAT, false, HalfFloatSupport, HalfFloatRenderableSupport, RequireExt<&Extensions::textureHalfFloatLinear>);
626 AddRGBAFormat(&map, GL_R32F, 32, 0, 0, 0, 0, GL_RED, GL_FLOAT, GL_FLOAT, false, FloatSupportRG, FloatRenderableSupportRG, RequireExt<&Extensions::textureFloatLinear> );
627 AddRGBAFormat(&map, GL_RG32F, 32, 32, 0, 0, 0, GL_RG, GL_FLOAT, GL_FLOAT, false, FloatSupportRG, FloatRenderableSupportRG, RequireExt<&Extensions::textureFloatLinear> );
628 AddRGBAFormat(&map, GL_RGB32F, 32, 32, 32, 0, 0, GL_RGB, GL_FLOAT, GL_FLOAT, false, FloatSupport, FloatRenderableSupport, RequireExt<&Extensions::textureFloatLinear> );
629 AddRGBAFormat(&map, GL_RGBA32F, 32, 32, 32, 32, 0, GL_RGBA, GL_FLOAT, GL_FLOAT, false, FloatSupport, FloatRenderableSupport, RequireExt<&Extensions::textureFloatLinear> );
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]630
631 // Depth stencil formats
Jamie Madilla3944d42016-07-22 22:13:26 -0400[diff] [blame]632 // | Internal format | D |S | X | Format | Type | Component type | Supported | Renderable | Filterable |
633 AddDepthStencilFormat(&map, GL_DEPTH_COMPONENT16, 16, 0, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, RequireES<2>, RequireES<2>, RequireESOrExt<3, &Extensions::depthTextures>);
634 AddDepthStencilFormat(&map, GL_DEPTH_COMPONENT24, 24, 0, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, GL_UNSIGNED_NORMALIZED, RequireES<3>, RequireES<3>, RequireESOrExt<3, &Extensions::depthTextures>);
635 AddDepthStencilFormat(&map, GL_DEPTH_COMPONENT32F, 32, 0, 0, GL_DEPTH_COMPONENT, GL_FLOAT, GL_FLOAT, RequireES<3>, RequireES<3>, RequireESOrExt<3, &Extensions::depthTextures>);
636 AddDepthStencilFormat(&map, GL_DEPTH_COMPONENT32_OES, 32, 0, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, GL_UNSIGNED_NORMALIZED, RequireExtOrExt<&Extensions::depthTextures, &Extensions::depth32>, RequireExtOrExt<&Extensions::depthTextures, &Extensions::depth32>, AlwaysSupported );
637 AddDepthStencilFormat(&map, GL_DEPTH24_STENCIL8, 24, 8, 0, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, GL_UNSIGNED_NORMALIZED, RequireESOrExt<3, &Extensions::depthTextures>, RequireESOrExtOrExt<3, &Extensions::depthTextures, &Extensions::packedDepthStencil>, AlwaysSupported );
638 AddDepthStencilFormat(&map, GL_DEPTH32F_STENCIL8, 32, 8, 24, GL_DEPTH_STENCIL, GL_FLOAT_32_UNSIGNED_INT_24_8_REV, GL_FLOAT, RequireES<3>, RequireES<3>, AlwaysSupported );
Corentin Walleze0902642014-11-04 12:32:15 -0800[diff] [blame]639 // STENCIL_INDEX8 is special-cased, see around the bottom of the list.
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]640
641 // Luminance alpha formats
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]642 // | Internal format | | L | A | Format | Type | Component type | Supported | Renderable | Filterable |
Geoff Langabce7622014-09-19 16:13:00 -0400[diff] [blame]643 map.insert(InternalFormatInfoPair(GL_ALPHA8_EXT, LUMAFormat( 0, 8, GL_ALPHA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireExt<&Extensions::textureStorage>, NeverSupported, AlwaysSupported)));
644 map.insert(InternalFormatInfoPair(GL_LUMINANCE8_EXT, LUMAFormat( 8, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireExt<&Extensions::textureStorage>, NeverSupported, AlwaysSupported)));
645 map.insert(InternalFormatInfoPair(GL_ALPHA32F_EXT, LUMAFormat( 0, 32, GL_ALPHA, GL_FLOAT, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureFloat>, NeverSupported, AlwaysSupported)));
646 map.insert(InternalFormatInfoPair(GL_LUMINANCE32F_EXT, LUMAFormat(32, 0, GL_LUMINANCE, GL_FLOAT, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureFloat>, NeverSupported, AlwaysSupported)));
647 map.insert(InternalFormatInfoPair(GL_ALPHA16F_EXT, LUMAFormat( 0, 16, GL_ALPHA, GL_HALF_FLOAT, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureHalfFloat>, NeverSupported, AlwaysSupported)));
648 map.insert(InternalFormatInfoPair(GL_LUMINANCE16F_EXT, LUMAFormat(16, 0, GL_LUMINANCE, GL_HALF_FLOAT, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureHalfFloat>, NeverSupported, AlwaysSupported)));
649 map.insert(InternalFormatInfoPair(GL_LUMINANCE8_ALPHA8_EXT, LUMAFormat( 8, 8, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireExt<&Extensions::textureStorage>, NeverSupported, AlwaysSupported)));
650 map.insert(InternalFormatInfoPair(GL_LUMINANCE_ALPHA32F_EXT, LUMAFormat(32, 32, GL_LUMINANCE_ALPHA, GL_FLOAT, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureFloat>, NeverSupported, AlwaysSupported)));
651 map.insert(InternalFormatInfoPair(GL_LUMINANCE_ALPHA16F_EXT, LUMAFormat(16, 16, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureHalfFloat>, NeverSupported, AlwaysSupported)));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]652
653 // Unsized formats
Jamie Madilla3944d42016-07-22 22:13:26 -0400[diff] [blame]654 // | Internal format | Format | Supported | Renderable | Filterable |
655 AddUnsizedFormat(&map, GL_ALPHA, GL_ALPHA, RequireES<2>, NeverSupported, AlwaysSupported);
656 AddUnsizedFormat(&map, GL_LUMINANCE, GL_LUMINANCE, RequireES<2>, NeverSupported, AlwaysSupported);
657 AddUnsizedFormat(&map, GL_LUMINANCE_ALPHA, GL_LUMINANCE_ALPHA, RequireES<2>, NeverSupported, AlwaysSupported);
658 AddUnsizedFormat(&map, GL_RED, GL_RED, RequireESOrExt<3, &Extensions::textureRG>, NeverSupported, AlwaysSupported);
659 AddUnsizedFormat(&map, GL_RG, GL_RG, RequireESOrExt<3, &Extensions::textureRG>, NeverSupported, AlwaysSupported);
660 AddUnsizedFormat(&map, GL_RGB, GL_RGB, RequireES<2>, RequireES<2>, AlwaysSupported);
661 AddUnsizedFormat(&map, GL_RGBA, GL_RGBA, RequireES<2>, RequireES<2>, AlwaysSupported);
662 AddUnsizedFormat(&map, GL_RED_INTEGER, GL_RED_INTEGER, RequireES<3>, NeverSupported, NeverSupported );
663 AddUnsizedFormat(&map, GL_RG_INTEGER, GL_RG_INTEGER, RequireES<3>, NeverSupported, NeverSupported );
664 AddUnsizedFormat(&map, GL_RGB_INTEGER, GL_RGB_INTEGER, RequireES<3>, NeverSupported, NeverSupported );
665 AddUnsizedFormat(&map, GL_RGBA_INTEGER, GL_RGBA_INTEGER, RequireES<3>, NeverSupported, NeverSupported );
666 AddUnsizedFormat(&map, GL_BGRA_EXT, GL_BGRA_EXT, RequireExt<&Extensions::textureFormatBGRA8888>, RequireExt<&Extensions::textureFormatBGRA8888>, AlwaysSupported);
667 AddUnsizedFormat(&map, GL_DEPTH_COMPONENT, GL_DEPTH_COMPONENT, RequireES<2>, RequireES<2>, AlwaysSupported);
668 AddUnsizedFormat(&map, GL_DEPTH_STENCIL, GL_DEPTH_STENCIL, RequireESOrExt<3, &Extensions::packedDepthStencil>, RequireESOrExt<3, &Extensions::packedDepthStencil>, AlwaysSupported);
669 AddUnsizedFormat(&map, GL_SRGB_EXT, GL_RGB, RequireESOrExt<3, &Extensions::sRGB>, NeverSupported, AlwaysSupported);
670 AddUnsizedFormat(&map, GL_SRGB_ALPHA_EXT, GL_RGBA, RequireESOrExt<3, &Extensions::sRGB>, RequireESOrExt<3, &Extensions::sRGB>, AlwaysSupported);
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]671
672 // Compressed formats, From ES 3.0.1 spec, table 3.16
Geoff Lang0d8b7242015-09-09 14:56:53 -0400[diff] [blame]673 // | Internal format | |W |H | BS |CC| Format | Type | SRGB | Supported | Renderable | Filterable |
674 map.insert(InternalFormatInfoPair(GL_COMPRESSED_R11_EAC, CompressedFormat(4, 4, 64, 1, GL_COMPRESSED_R11_EAC, GL_UNSIGNED_BYTE, false, RequireES<3>, NeverSupported, AlwaysSupported)));
675 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SIGNED_R11_EAC, CompressedFormat(4, 4, 64, 1, GL_COMPRESSED_SIGNED_R11_EAC, GL_UNSIGNED_BYTE, false, RequireES<3>, NeverSupported, AlwaysSupported)));
676 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RG11_EAC, CompressedFormat(4, 4, 128, 2, GL_COMPRESSED_RG11_EAC, GL_UNSIGNED_BYTE, false, RequireES<3>, NeverSupported, AlwaysSupported)));
677 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SIGNED_RG11_EAC, CompressedFormat(4, 4, 128, 2, GL_COMPRESSED_SIGNED_RG11_EAC, GL_UNSIGNED_BYTE, false, RequireES<3>, NeverSupported, AlwaysSupported)));
678 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGB8_ETC2, CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_RGB8_ETC2, GL_UNSIGNED_BYTE, false, RequireES<3>, NeverSupported, AlwaysSupported)));
679 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SRGB8_ETC2, CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_SRGB8_ETC2, GL_UNSIGNED_BYTE, true, RequireES<3>, NeverSupported, AlwaysSupported)));
680 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_UNSIGNED_BYTE, false, RequireES<3>, NeverSupported, AlwaysSupported)));
681 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_UNSIGNED_BYTE, true, RequireES<3>, NeverSupported, AlwaysSupported)));
682 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA8_ETC2_EAC, CompressedFormat(4, 4, 128, 4, GL_COMPRESSED_RGBA8_ETC2_EAC, GL_UNSIGNED_BYTE, false, RequireES<3>, NeverSupported, AlwaysSupported)));
683 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC, CompressedFormat(4, 4, 128, 4, GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC, GL_UNSIGNED_BYTE, true, RequireES<3>, NeverSupported, AlwaysSupported)));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]684
685 // From GL_EXT_texture_compression_dxt1
Geoff Lang6ea6f942015-09-11 13:11:22 -0400[diff] [blame]686 // | Internal format | |W |H | BS |CC| Format | Type | SRGB | Supported | Renderable | Filterable |
687 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGB_S3TC_DXT1_EXT, CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE, false, RequireExt<&Extensions::textureCompressionDXT1>, NeverSupported, AlwaysSupported)));
688 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, CompressedFormat(4, 4, 64, 4, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE, false, RequireExt<&Extensions::textureCompressionDXT1>, NeverSupported, AlwaysSupported)));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]689
690 // From GL_ANGLE_texture_compression_dxt3
Geoff Lang6ea6f942015-09-11 13:11:22 -0400[diff] [blame]691 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, CompressedFormat(4, 4, 128, 4, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, GL_UNSIGNED_BYTE, false, RequireExt<&Extensions::textureCompressionDXT5>, NeverSupported, AlwaysSupported)));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]692
693 // From GL_ANGLE_texture_compression_dxt5
Geoff Lang6ea6f942015-09-11 13:11:22 -0400[diff] [blame]694 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, CompressedFormat(4, 4, 128, 4, GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, GL_UNSIGNED_BYTE, false, RequireExt<&Extensions::textureCompressionDXT5>, NeverSupported, AlwaysSupported)));
695
696 // From GL_OES_compressed_ETC1_RGB8_texture
697 map.insert(InternalFormatInfoPair(GL_ETC1_RGB8_OES, CompressedFormat(4, 4, 64, 3, GL_ETC1_RGB8_OES, GL_UNSIGNED_BYTE, false, RequireExt<&Extensions::compressedETC1RGB8Texture>, NeverSupported, AlwaysSupported)));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]698
Geoff Lang60ad73d2015-10-23 10:08:44 -0400[diff] [blame]699 // From KHR_texture_compression_astc_hdr
700 // | Internal format | | W | H | BS |CC| Format | Type | SRGB | Supported | Renderable | Filterable |
701 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_ASTC_4x4_KHR, CompressedFormat( 4, 4, 128, 4, GL_COMPRESSED_RGBA_ASTC_4x4_KHR, GL_UNSIGNED_BYTE, false, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported)));
702 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_ASTC_5x4_KHR, CompressedFormat( 5, 4, 128, 4, GL_COMPRESSED_RGBA_ASTC_5x4_KHR, GL_UNSIGNED_BYTE, false, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported)));
703 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_ASTC_5x5_KHR, CompressedFormat( 5, 5, 128, 4, GL_COMPRESSED_RGBA_ASTC_5x5_KHR, GL_UNSIGNED_BYTE, false, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported)));
704 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_ASTC_6x5_KHR, CompressedFormat( 6, 5, 128, 4, GL_COMPRESSED_RGBA_ASTC_6x5_KHR, GL_UNSIGNED_BYTE, false, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported)));
705 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_ASTC_6x6_KHR, CompressedFormat( 6, 6, 128, 4, GL_COMPRESSED_RGBA_ASTC_6x6_KHR, GL_UNSIGNED_BYTE, false, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported)));
706 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_ASTC_8x5_KHR, CompressedFormat( 8, 5, 128, 4, GL_COMPRESSED_RGBA_ASTC_8x5_KHR, GL_UNSIGNED_BYTE, false, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported)));
707 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_ASTC_8x6_KHR, CompressedFormat( 8, 6, 128, 4, GL_COMPRESSED_RGBA_ASTC_8x6_KHR, GL_UNSIGNED_BYTE, false, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported)));
708 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_ASTC_8x8_KHR, CompressedFormat( 8, 8, 128, 4, GL_COMPRESSED_RGBA_ASTC_8x8_KHR, GL_UNSIGNED_BYTE, false, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported)));
709 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_ASTC_10x5_KHR, CompressedFormat(10, 5, 128, 4, GL_COMPRESSED_RGBA_ASTC_10x5_KHR, GL_UNSIGNED_BYTE, false, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported)));
710 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_ASTC_10x6_KHR, CompressedFormat(10, 6, 128, 4, GL_COMPRESSED_RGBA_ASTC_10x6_KHR, GL_UNSIGNED_BYTE, false, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported)));
711 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_ASTC_10x8_KHR, CompressedFormat(10, 8, 128, 4, GL_COMPRESSED_RGBA_ASTC_10x8_KHR, GL_UNSIGNED_BYTE, false, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported)));
712 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_ASTC_10x10_KHR, CompressedFormat(10, 10, 128, 4, GL_COMPRESSED_RGBA_ASTC_10x10_KHR, GL_UNSIGNED_BYTE, false, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported)));
713 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_ASTC_12x10_KHR, CompressedFormat(12, 10, 128, 4, GL_COMPRESSED_RGBA_ASTC_12x10_KHR, GL_UNSIGNED_BYTE, false, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported)));
714 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGBA_ASTC_12x12_KHR, CompressedFormat(12, 12, 128, 4, GL_COMPRESSED_RGBA_ASTC_12x12_KHR, GL_UNSIGNED_BYTE, false, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported)));
715
716 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR, CompressedFormat( 4, 4, 128, 4, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR, GL_UNSIGNED_BYTE, true, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported)));
717 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR, CompressedFormat( 5, 4, 128, 4, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR, GL_UNSIGNED_BYTE, true, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported)));
718 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR, CompressedFormat( 5, 5, 128, 4, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR, GL_UNSIGNED_BYTE, true, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported)));
719 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR, CompressedFormat( 6, 5, 128, 4, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR, GL_UNSIGNED_BYTE, true, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported)));
720 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR, CompressedFormat( 6, 6, 128, 4, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR, GL_UNSIGNED_BYTE, true, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported)));
721 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR, CompressedFormat( 8, 5, 128, 4, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR, GL_UNSIGNED_BYTE, true, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported)));
722 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR, CompressedFormat( 8, 6, 128, 4, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR, GL_UNSIGNED_BYTE, true, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported)));
723 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR, CompressedFormat( 8, 8, 128, 4, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR, GL_UNSIGNED_BYTE, true, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported)));
724 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR, CompressedFormat(10, 5, 128, 4, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR, GL_UNSIGNED_BYTE, true, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported)));
725 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR, CompressedFormat(10, 6, 128, 4, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR, GL_UNSIGNED_BYTE, true, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported)));
726 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR, CompressedFormat(10, 8, 128, 4, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR, GL_UNSIGNED_BYTE, true, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported)));
727 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR, CompressedFormat(10, 10, 128, 4, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR, GL_UNSIGNED_BYTE, true, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported)));
728 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR, CompressedFormat(12, 10, 128, 4, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR, GL_UNSIGNED_BYTE, true, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported)));
729 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR, CompressedFormat(12, 12, 128, 4, GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR, GL_UNSIGNED_BYTE, true, RequireExtOrExt<&Extensions::textureCompressionASTCHDR, &Extensions::textureCompressionASTCLDR>, NeverSupported, AlwaysSupported)));
730
Corentin Walleze0902642014-11-04 12:32:15 -0800[diff] [blame]731 // For STENCIL_INDEX8 we chose a normalized component type for the following reasons:
732 // - Multisampled buffer are disallowed for non-normalized integer component types and we want to support it for STENCIL_INDEX8
733 // - All other stencil formats (all depth-stencil) are either float or normalized
734 // - It affects only validation of internalformat in RenderbufferStorageMultisample.
Jamie Madilla3944d42016-07-22 22:13:26 -0400[diff] [blame]735 // | Internal format |D |S |X | Format | Type | Component type | Supported | Renderable | Filterable |
736 AddDepthStencilFormat(&map, GL_STENCIL_INDEX8, 0, 8, 0, GL_STENCIL, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireES<2>, RequireES<2>, NeverSupported);
Minmin Gonge3939b92015-12-01 15:36:51 -0800[diff] [blame]737
738 // From GL_ANGLE_lossy_etc_decode
Geoff Langd13ca302016-09-08 09:35:57 -0400[diff] [blame]739 map.insert(InternalFormatInfoPair(GL_ETC1_RGB8_LOSSY_DECODE_ANGLE, CompressedFormat(4, 4, 64, 3, GL_ETC1_RGB8_LOSSY_DECODE_ANGLE, GL_UNSIGNED_BYTE, false, RequireExt<&Extensions::lossyETCDecode>, NeverSupported, AlwaysSupported)));
Minmin Gonge3939b92015-12-01 15:36:51 -0800[diff] [blame]740
Vincent Lang25ab4512016-05-13 18:13:59 +0200[diff] [blame]741 // From GL_EXT_texture_norm16
Jamie Madilla3944d42016-07-22 22:13:26 -0400[diff] [blame]742 // | Internal format | R | G | B | A |S | Format | Type | Component type | SRGB | Texture supported | Renderable | Filterable |
743 AddRGBAFormat(&map, GL_R16_EXT, 16, 0, 0, 0, 0, GL_RED, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16>, RequireExt<&Extensions::textureNorm16>, AlwaysSupported);
744 AddRGBAFormat(&map, GL_R16_SNORM_EXT, 16, 0, 0, 0, 0, GL_RED, GL_SHORT, GL_SIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16>, NeverSupported, AlwaysSupported);
745 AddRGBAFormat(&map, GL_RG16_EXT, 16, 16, 0, 0, 0, GL_RG, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16>, RequireExt<&Extensions::textureNorm16>, AlwaysSupported);
746 AddRGBAFormat(&map, GL_RG16_SNORM_EXT, 16, 16, 0, 0, 0, GL_RG, GL_SHORT, GL_SIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16>, NeverSupported, AlwaysSupported);
747 AddRGBAFormat(&map, GL_RGB16_EXT, 16, 16, 16, 0, 0, GL_RGB, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16>, NeverSupported, AlwaysSupported);
748 AddRGBAFormat(&map, GL_RGB16_SNORM_EXT, 16, 16, 16, 0, 0, GL_RGB, GL_SHORT, GL_SIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16>, NeverSupported, AlwaysSupported);
749 AddRGBAFormat(&map, GL_RGBA16_EXT, 16, 16, 16, 16, 0, GL_RGBA, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16>, RequireExt<&Extensions::textureNorm16>, AlwaysSupported);
750 AddRGBAFormat(&map, GL_RGBA16_SNORM_EXT, 16, 16, 16, 16, 0, GL_RGBA, GL_SHORT, GL_SIGNED_NORMALIZED, false, RequireExt<&Extensions::textureNorm16>, NeverSupported, AlwaysSupported);
Vincent Lang25ab4512016-05-13 18:13:59 +0200[diff] [blame]751
Geoff Lang9bbad182015-09-04 11:07:29 -0400[diff] [blame]752 // clang-format on
Corentin Walleze0902642014-11-04 12:32:15 -0800[diff] [blame]753
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]754 return map;
755}
756
Geoff Lange4a492b2014-06-19 14:14:41 -0400[diff] [blame]757static const InternalFormatInfoMap &GetInternalFormatMap()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]758{
Geoff Lange4a492b2014-06-19 14:14:41 -0400[diff] [blame]759 static const InternalFormatInfoMap formatMap = BuildInternalFormatInfoMap();
760 return formatMap;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]761}
762
Geoff Lange4a492b2014-06-19 14:14:41 -0400[diff] [blame]763static FormatSet BuildAllSizedInternalFormatSet()
Geoff Langcec35902014-04-16 10:52:36 -0400[diff] [blame]764{
765 FormatSet result;
766
Jamie Madillec0b5802016-07-04 13:11:59 -0400[diff] [blame]767 for (auto iter : GetInternalFormatMap())
Geoff Langcec35902014-04-16 10:52:36 -0400[diff] [blame]768 {
Jamie Madillec0b5802016-07-04 13:11:59 -0400[diff] [blame]769 if (iter.second.pixelBytes > 0)
Geoff Langcec35902014-04-16 10:52:36 -0400[diff] [blame]770 {
Jamie Madillec0b5802016-07-04 13:11:59 -0400[diff] [blame]771 // TODO(jmadill): Fix this hack.
772 if (iter.first == GL_BGR565_ANGLEX)
773 continue;
774
775 result.insert(iter.first);
Geoff Langcec35902014-04-16 10:52:36 -0400[diff] [blame]776 }
777 }
778
779 return result;
780}
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]781
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]782const Type &GetTypeInfo(GLenum type)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]783{
Olli Etuaho31f8f4f2015-03-25 16:03:57 +0200[diff] [blame]784 switch (type)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]785 {
Olli Etuaho31f8f4f2015-03-25 16:03:57 +0200[diff] [blame]786 case GL_UNSIGNED_BYTE:
787 case GL_BYTE:
788 {
789 static const Type info = GenTypeInfo(1, false);
790 return info;
791 }
792 case GL_UNSIGNED_SHORT:
793 case GL_SHORT:
794 case GL_HALF_FLOAT:
795 case GL_HALF_FLOAT_OES:
796 {
797 static const Type info = GenTypeInfo(2, false);
798 return info;
799 }
800 case GL_UNSIGNED_INT:
801 case GL_INT:
802 case GL_FLOAT:
803 {
804 static const Type info = GenTypeInfo(4, false);
805 return info;
806 }
807 case GL_UNSIGNED_SHORT_5_6_5:
808 case GL_UNSIGNED_SHORT_4_4_4_4:
809 case GL_UNSIGNED_SHORT_5_5_5_1:
810 case GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT:
811 case GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT:
812 {
813 static const Type info = GenTypeInfo(2, true);
814 return info;
815 }
816 case GL_UNSIGNED_INT_2_10_10_10_REV:
817 case GL_UNSIGNED_INT_24_8:
818 case GL_UNSIGNED_INT_10F_11F_11F_REV:
819 case GL_UNSIGNED_INT_5_9_9_9_REV:
820 {
821 ASSERT(GL_UNSIGNED_INT_24_8_OES == GL_UNSIGNED_INT_24_8);
822 static const Type info = GenTypeInfo(4, true);
823 return info;
824 }
825 case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
826 {
827 static const Type info = GenTypeInfo(8, true);
828 return info;
829 }
830 default:
831 {
832 static const Type defaultInfo;
833 return defaultInfo;
834 }
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]835 }
836}
837
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]838const InternalFormat &GetInternalFormatInfo(GLenum internalFormat)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]839{
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]840 const InternalFormatInfoMap &formatMap = GetInternalFormatMap();
Jamie Madillec0b5802016-07-04 13:11:59 -0400[diff] [blame]841 auto iter = formatMap.find(internalFormat);
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]842 if (iter != formatMap.end())
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]843 {
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]844 return iter->second;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]845 }
846 else
847 {
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]848 static const InternalFormat defaultInternalFormat;
Jamie Madillec0b5802016-07-04 13:11:59 -0400[diff] [blame]849 UNREACHABLE();
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]850 return defaultInternalFormat;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]851 }
852}
853
Corentin Wallezc5cacd62016-09-14 14:50:24 -0400[diff] [blame]854GLuint InternalFormat::computePixelBytes(GLenum formatType) const
855{
856 const auto &typeInfo = GetTypeInfo(formatType);
857 GLuint components = typeInfo.specialInterpretation ? 1u : componentCount;
858 return components * typeInfo.bytes;
859}
860
Jamie Madille2e406c2016-06-02 13:04:10 -0400[diff] [blame]861gl::ErrorOrResult<GLuint> InternalFormat::computeRowPitch(GLenum formatType,
862 GLsizei width,
863 GLint alignment,
864 GLint rowLength) const
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]865{
Jamie Madill4b4cdff2016-06-06 13:53:38 -0700[diff] [blame]866 // Compressed images do not use pack/unpack parameters.
867 if (compressed)
868 {
869 ASSERT(rowLength == 0);
870 return computeCompressedImageSize(formatType, gl::Extents(width, 1, 1));
871 }
872
Geoff Lang3f234062016-07-13 15:35:45 -0400[diff] [blame]873 CheckedNumeric<GLuint> checkedWidth(rowLength > 0 ? rowLength : width);
Corentin Wallezc5cacd62016-09-14 14:50:24 -0400[diff] [blame]874 CheckedNumeric<GLuint> checkedRowBytes = checkedWidth * computePixelBytes(formatType);
Jamie Madill4b4cdff2016-06-06 13:53:38 -0700[diff] [blame]875
876 ASSERT(alignment > 0 && isPow2(alignment));
877 CheckedNumeric<GLuint> checkedAlignment(alignment);
878 auto aligned = rx::roundUp(checkedRowBytes, checkedAlignment);
879 ANGLE_TRY_CHECKED_MATH(aligned);
880 return aligned.ValueOrDie();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]881}
882
Jamie Madille2e406c2016-06-02 13:04:10 -0400[diff] [blame]883gl::ErrorOrResult<GLuint> InternalFormat::computeDepthPitch(GLenum formatType,
884 GLsizei width,
885 GLsizei height,
886 GLint alignment,
887 GLint rowLength,
888 GLint imageHeight) const
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]889{
Jamie Madill4b4cdff2016-06-06 13:53:38 -0700[diff] [blame]890 GLuint rows =
891 (imageHeight > 0 ? static_cast<GLuint>(imageHeight) : static_cast<GLuint>(height));
Jamie Madille2e406c2016-06-02 13:04:10 -0400[diff] [blame]892 GLuint rowPitch = 0;
893 ANGLE_TRY_RESULT(computeRowPitch(formatType, width, alignment, rowLength), rowPitch);
894
895 CheckedNumeric<GLuint> checkedRowPitch(rowPitch);
896 auto depthPitch = checkedRowPitch * rows;
897 ANGLE_TRY_CHECKED_MATH(depthPitch);
898 return depthPitch.ValueOrDie();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]899}
900
Jamie Madill4b4cdff2016-06-06 13:53:38 -0700[diff] [blame]901gl::ErrorOrResult<GLuint> InternalFormat::computeCompressedImageSize(GLenum formatType,
902 const gl::Extents &size) const
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]903{
Jamie Madill513558d2016-06-02 13:04:11 -0400[diff] [blame]904 CheckedNumeric<GLuint> checkedWidth(size.width);
905 CheckedNumeric<GLuint> checkedHeight(size.height);
906 CheckedNumeric<GLuint> checkedDepth(size.depth);
Jamie Madill4b4cdff2016-06-06 13:53:38 -0700[diff] [blame]907 CheckedNumeric<GLuint> checkedBlockWidth(compressedBlockWidth);
908 CheckedNumeric<GLuint> checkedBlockHeight(compressedBlockHeight);
Jamie Madille2e406c2016-06-02 13:04:10 -0400[diff] [blame]909
Jamie Madill4b4cdff2016-06-06 13:53:38 -0700[diff] [blame]910 ASSERT(compressed);
911 auto numBlocksWide = (checkedWidth + checkedBlockWidth - 1u) / checkedBlockWidth;
912 auto numBlocksHigh = (checkedHeight + checkedBlockHeight - 1u) / checkedBlockHeight;
913 auto bytes = numBlocksWide * numBlocksHigh * pixelBytes * checkedDepth;
914 ANGLE_TRY_CHECKED_MATH(bytes);
915 return bytes.ValueOrDie();
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]916}
917
Olli Etuaho989cac32016-06-08 16:18:49 -0700[diff] [blame]918gl::ErrorOrResult<GLuint> InternalFormat::computeSkipBytes(GLuint rowPitch,
919 GLuint depthPitch,
920 GLint skipImages,
921 GLint skipRows,
922 GLint skipPixels,
923 bool applySkipImages) const
Minmin Gongadff67b2015-10-14 10:34:45 -0400[diff] [blame]924{
Olli Etuaho989cac32016-06-08 16:18:49 -0700[diff] [blame]925 CheckedNumeric<GLuint> checkedRowPitch(rowPitch);
926 CheckedNumeric<GLuint> checkedDepthPitch(depthPitch);
927 CheckedNumeric<GLuint> checkedSkipImages(static_cast<GLuint>(skipImages));
928 CheckedNumeric<GLuint> checkedSkipRows(static_cast<GLuint>(skipRows));
929 CheckedNumeric<GLuint> checkedSkipPixels(static_cast<GLuint>(skipPixels));
930 CheckedNumeric<GLuint> checkedPixelBytes(pixelBytes);
931 auto checkedSkipImagesBytes = checkedSkipImages * checkedDepthPitch;
932 if (!applySkipImages)
933 {
934 checkedSkipImagesBytes = 0;
935 }
936 auto skipBytes = checkedSkipImagesBytes + checkedSkipRows * checkedRowPitch +
937 checkedSkipPixels * checkedPixelBytes;
938 ANGLE_TRY_CHECKED_MATH(skipBytes);
939 return skipBytes.ValueOrDie();
Minmin Gongadff67b2015-10-14 10:34:45 -0400[diff] [blame]940}
941
Jamie Madill4b4cdff2016-06-06 13:53:38 -0700[diff] [blame]942gl::ErrorOrResult<GLuint> InternalFormat::computeUnpackSize(
943 GLenum formatType,
944 const gl::Extents &size,
945 const gl::PixelUnpackState &unpack) const
946{
947 // Compressed images do not use unpack parameters.
948 if (compressed)
949 {
950 return computeCompressedImageSize(formatType, size);
951 }
952
Corentin Wallezc5cacd62016-09-14 14:50:24 -0400[diff] [blame]953 CheckedNumeric<GLuint> rowPitch;
954 CheckedNumeric<GLuint> depthPitch;
955 ANGLE_TRY_RESULT(computeRowPitch(formatType, size.width, unpack.alignment, unpack.rowLength),
956 rowPitch);
957 ANGLE_TRY_RESULT(computeDepthPitch(formatType, size.width, size.height, unpack.alignment,
958 unpack.rowLength, unpack.imageHeight),
959 depthPitch);
Jamie Madill4b4cdff2016-06-06 13:53:38 -0700[diff] [blame]960
Corentin Wallezc5cacd62016-09-14 14:50:24 -0400[diff] [blame]961 CheckedNumeric<GLuint> depthMinusOne = size.depth - 1;
962 CheckedNumeric<GLuint> heightMinusOne = size.height - 1;
963 CheckedNumeric<GLuint> pixelBytes = computePixelBytes(formatType);
Jamie Madill4b4cdff2016-06-06 13:53:38 -0700[diff] [blame]964
Corentin Wallezc5cacd62016-09-14 14:50:24 -0400[diff] [blame]965 CheckedNumeric<GLuint> totalSize = depthMinusOne * depthPitch;
966 totalSize += heightMinusOne * rowPitch;
967 totalSize += size.width * pixelBytes;
Jamie Madill4b4cdff2016-06-06 13:53:38 -0700[diff] [blame]968
969 ANGLE_TRY_CHECKED_MATH(totalSize);
970
971 return totalSize.ValueOrDie();
972}
973
Corentin Wallezc5cacd62016-09-14 14:50:24 -0400[diff] [blame]974gl::ErrorOrResult<GLuint> InternalFormat::computeUnpackEndByte(GLenum formatType,
975 const gl::Extents &size,
976 const gl::PixelUnpackState &unpack,
977 bool applySkipImages) const
978{
979 GLuint rowPitch;
980 GLuint depthPitch;
981 CheckedNumeric<GLuint> checkedSkipBytes;
982 CheckedNumeric<GLuint> checkedCopyBytes;
983
984 ANGLE_TRY_RESULT(computeRowPitch(formatType, size.width, unpack.alignment, unpack.rowLength),
985 rowPitch);
986 ANGLE_TRY_RESULT(computeDepthPitch(formatType, size.width, size.height, unpack.alignment,
987 unpack.rowLength, unpack.imageHeight),
988 depthPitch);
989 ANGLE_TRY_RESULT(computeSkipBytes(rowPitch, depthPitch, unpack.skipImages, unpack.skipRows,
990 unpack.skipPixels, applySkipImages),
991 checkedSkipBytes);
992 ANGLE_TRY_RESULT(computeUnpackSize(formatType, size, unpack), checkedCopyBytes);
993
994 CheckedNumeric<GLuint> endByte = checkedCopyBytes + checkedSkipBytes;
995
996 ANGLE_TRY_CHECKED_MATH(endByte);
997 return endByte.ValueOrDie();
998}
999
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]1000GLenum GetSizedInternalFormat(GLenum internalFormat, GLenum type)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1001{
Jamie Madill4b4cdff2016-06-06 13:53:38 -0700[diff] [blame]1002 const InternalFormat &formatInfo = GetInternalFormatInfo(internalFormat);
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]1003 if (formatInfo.pixelBytes > 0)
1004 {
1005 return internalFormat;
1006 }
Jamie Madilla3944d42016-07-22 22:13:26 -0400[diff] [blame]1007 return GetSizedFormatInternal(internalFormat, type);
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1008}
1009
Geoff Lange4a492b2014-06-19 14:14:41 -0400[diff] [blame]1010const FormatSet &GetAllSizedInternalFormats()
Geoff Langcec35902014-04-16 10:52:36 -0400[diff] [blame]1011{
Geoff Lange4a492b2014-06-19 14:14:41 -0400[diff] [blame]1012 static FormatSet formatSet = BuildAllSizedInternalFormatSet();
Geoff Langcec35902014-04-16 10:52:36 -0400[diff] [blame]1013 return formatSet;
1014}
1015
Jamie Madill09e2d932015-07-14 16:40:31 -0400[diff] [blame]1016AttributeType GetAttributeType(GLenum enumValue)
1017{
1018 switch (enumValue)
1019 {
1020 case GL_FLOAT:
1021 return ATTRIBUTE_FLOAT;
1022 case GL_FLOAT_VEC2:
1023 return ATTRIBUTE_VEC2;
1024 case GL_FLOAT_VEC3:
1025 return ATTRIBUTE_VEC3;
1026 case GL_FLOAT_VEC4:
1027 return ATTRIBUTE_VEC4;
1028 case GL_INT:
1029 return ATTRIBUTE_INT;
1030 case GL_INT_VEC2:
1031 return ATTRIBUTE_IVEC2;
1032 case GL_INT_VEC3:
1033 return ATTRIBUTE_IVEC3;
1034 case GL_INT_VEC4:
1035 return ATTRIBUTE_IVEC4;
1036 case GL_UNSIGNED_INT:
1037 return ATTRIBUTE_UINT;
1038 case GL_UNSIGNED_INT_VEC2:
1039 return ATTRIBUTE_UVEC2;
1040 case GL_UNSIGNED_INT_VEC3:
1041 return ATTRIBUTE_UVEC3;
1042 case GL_UNSIGNED_INT_VEC4:
1043 return ATTRIBUTE_UVEC4;
1044 case GL_FLOAT_MAT2:
1045 return ATTRIBUTE_MAT2;
1046 case GL_FLOAT_MAT3:
1047 return ATTRIBUTE_MAT3;
1048 case GL_FLOAT_MAT4:
1049 return ATTRIBUTE_MAT4;
1050 case GL_FLOAT_MAT2x3:
1051 return ATTRIBUTE_MAT2x3;
1052 case GL_FLOAT_MAT2x4:
1053 return ATTRIBUTE_MAT2x4;
1054 case GL_FLOAT_MAT3x2:
1055 return ATTRIBUTE_MAT3x2;
1056 case GL_FLOAT_MAT3x4:
1057 return ATTRIBUTE_MAT3x4;
1058 case GL_FLOAT_MAT4x2:
1059 return ATTRIBUTE_MAT4x2;
1060 case GL_FLOAT_MAT4x3:
1061 return ATTRIBUTE_MAT4x3;
1062 default:
1063 UNREACHABLE();
1064 return ATTRIBUTE_FLOAT;
1065 }
1066}
1067
Jamie Madilld3dfda22015-07-06 08:28:49 -0400[diff] [blame]1068VertexFormatType GetVertexFormatType(GLenum type, GLboolean normalized, GLuint components, bool pureInteger)
1069{
1070 switch (type)
1071 {
1072 case GL_BYTE:
1073 switch (components)
1074 {
1075 case 1:
1076 if (pureInteger)
1077 return VERTEX_FORMAT_SBYTE1_INT;
1078 if (normalized)
1079 return VERTEX_FORMAT_SBYTE1_NORM;
1080 return VERTEX_FORMAT_SBYTE1;
1081 case 2:
1082 if (pureInteger)
1083 return VERTEX_FORMAT_SBYTE2_INT;
1084 if (normalized)
1085 return VERTEX_FORMAT_SBYTE2_NORM;
1086 return VERTEX_FORMAT_SBYTE2;
1087 case 3:
1088 if (pureInteger)
1089 return VERTEX_FORMAT_SBYTE3_INT;
1090 if (normalized)
1091 return VERTEX_FORMAT_SBYTE3_NORM;
1092 return VERTEX_FORMAT_SBYTE3;
1093 case 4:
1094 if (pureInteger)
1095 return VERTEX_FORMAT_SBYTE4_INT;
1096 if (normalized)
1097 return VERTEX_FORMAT_SBYTE4_NORM;
1098 return VERTEX_FORMAT_SBYTE4;
1099 default:
1100 UNREACHABLE();
1101 break;
1102 }
1103 case GL_UNSIGNED_BYTE:
1104 switch (components)
1105 {
1106 case 1:
1107 if (pureInteger)
1108 return VERTEX_FORMAT_UBYTE1_INT;
1109 if (normalized)
1110 return VERTEX_FORMAT_UBYTE1_NORM;
1111 return VERTEX_FORMAT_UBYTE1;
1112 case 2:
1113 if (pureInteger)
1114 return VERTEX_FORMAT_UBYTE2_INT;
1115 if (normalized)
1116 return VERTEX_FORMAT_UBYTE2_NORM;
1117 return VERTEX_FORMAT_UBYTE2;
1118 case 3:
1119 if (pureInteger)
1120 return VERTEX_FORMAT_UBYTE3_INT;
1121 if (normalized)
1122 return VERTEX_FORMAT_UBYTE3_NORM;
1123 return VERTEX_FORMAT_UBYTE3;
1124 case 4:
1125 if (pureInteger)
1126 return VERTEX_FORMAT_UBYTE4_INT;
1127 if (normalized)
1128 return VERTEX_FORMAT_UBYTE4_NORM;
1129 return VERTEX_FORMAT_UBYTE4;
1130 default:
1131 UNREACHABLE();
1132 break;
1133 }
1134 case GL_SHORT:
1135 switch (components)
1136 {
1137 case 1:
1138 if (pureInteger)
1139 return VERTEX_FORMAT_SSHORT1_INT;
1140 if (normalized)
1141 return VERTEX_FORMAT_SSHORT1_NORM;
1142 return VERTEX_FORMAT_SSHORT1;
1143 case 2:
1144 if (pureInteger)
1145 return VERTEX_FORMAT_SSHORT2_INT;
1146 if (normalized)
1147 return VERTEX_FORMAT_SSHORT2_NORM;
1148 return VERTEX_FORMAT_SSHORT2;
1149 case 3:
1150 if (pureInteger)
1151 return VERTEX_FORMAT_SSHORT3_INT;
1152 if (normalized)
1153 return VERTEX_FORMAT_SSHORT3_NORM;
1154 return VERTEX_FORMAT_SSHORT3;
1155 case 4:
1156 if (pureInteger)
1157 return VERTEX_FORMAT_SSHORT4_INT;
1158 if (normalized)
1159 return VERTEX_FORMAT_SSHORT4_NORM;
1160 return VERTEX_FORMAT_SSHORT4;
1161 default:
1162 UNREACHABLE();
1163 break;
1164 }
1165 case GL_UNSIGNED_SHORT:
1166 switch (components)
1167 {
1168 case 1:
1169 if (pureInteger)
1170 return VERTEX_FORMAT_USHORT1_INT;
1171 if (normalized)
1172 return VERTEX_FORMAT_USHORT1_NORM;
1173 return VERTEX_FORMAT_USHORT1;
1174 case 2:
1175 if (pureInteger)
1176 return VERTEX_FORMAT_USHORT2_INT;
1177 if (normalized)
1178 return VERTEX_FORMAT_USHORT2_NORM;
1179 return VERTEX_FORMAT_USHORT2;
1180 case 3:
1181 if (pureInteger)
1182 return VERTEX_FORMAT_USHORT3_INT;
1183 if (normalized)
1184 return VERTEX_FORMAT_USHORT3_NORM;
1185 return VERTEX_FORMAT_USHORT3;
1186 case 4:
1187 if (pureInteger)
1188 return VERTEX_FORMAT_USHORT4_INT;
1189 if (normalized)
1190 return VERTEX_FORMAT_USHORT4_NORM;
1191 return VERTEX_FORMAT_USHORT4;
1192 default:
1193 UNREACHABLE();
1194 break;
1195 }
1196 case GL_INT:
1197 switch (components)
1198 {
1199 case 1:
1200 if (pureInteger)
1201 return VERTEX_FORMAT_SINT1_INT;
1202 if (normalized)
1203 return VERTEX_FORMAT_SINT1_NORM;
1204 return VERTEX_FORMAT_SINT1;
1205 case 2:
1206 if (pureInteger)
1207 return VERTEX_FORMAT_SINT2_INT;
1208 if (normalized)
1209 return VERTEX_FORMAT_SINT2_NORM;
1210 return VERTEX_FORMAT_SINT2;
1211 case 3:
1212 if (pureInteger)
1213 return VERTEX_FORMAT_SINT3_INT;
1214 if (normalized)
1215 return VERTEX_FORMAT_SINT3_NORM;
1216 return VERTEX_FORMAT_SINT3;
1217 case 4:
1218 if (pureInteger)
1219 return VERTEX_FORMAT_SINT4_INT;
1220 if (normalized)
1221 return VERTEX_FORMAT_SINT4_NORM;
1222 return VERTEX_FORMAT_SINT4;
1223 default:
1224 UNREACHABLE();
1225 break;
1226 }
1227 case GL_UNSIGNED_INT:
1228 switch (components)
1229 {
1230 case 1:
1231 if (pureInteger)
1232 return VERTEX_FORMAT_UINT1_INT;
1233 if (normalized)
1234 return VERTEX_FORMAT_UINT1_NORM;
1235 return VERTEX_FORMAT_UINT1;
1236 case 2:
1237 if (pureInteger)
1238 return VERTEX_FORMAT_UINT2_INT;
1239 if (normalized)
1240 return VERTEX_FORMAT_UINT2_NORM;
1241 return VERTEX_FORMAT_UINT2;
1242 case 3:
1243 if (pureInteger)
1244 return VERTEX_FORMAT_UINT3_INT;
1245 if (normalized)
1246 return VERTEX_FORMAT_UINT3_NORM;
1247 return VERTEX_FORMAT_UINT3;
1248 case 4:
1249 if (pureInteger)
1250 return VERTEX_FORMAT_UINT4_INT;
1251 if (normalized)
1252 return VERTEX_FORMAT_UINT4_NORM;
1253 return VERTEX_FORMAT_UINT4;
1254 default:
1255 UNREACHABLE();
1256 break;
1257 }
1258 case GL_FLOAT:
1259 switch (components)
1260 {
1261 case 1:
1262 return VERTEX_FORMAT_FLOAT1;
1263 case 2:
1264 return VERTEX_FORMAT_FLOAT2;
1265 case 3:
1266 return VERTEX_FORMAT_FLOAT3;
1267 case 4:
1268 return VERTEX_FORMAT_FLOAT4;
1269 default:
1270 UNREACHABLE();
1271 break;
1272 }
1273 case GL_HALF_FLOAT:
1274 switch (components)
1275 {
1276 case 1:
1277 return VERTEX_FORMAT_HALF1;
1278 case 2:
1279 return VERTEX_FORMAT_HALF2;
1280 case 3:
1281 return VERTEX_FORMAT_HALF3;
1282 case 4:
1283 return VERTEX_FORMAT_HALF4;
1284 default:
1285 UNREACHABLE();
1286 break;
1287 }
1288 case GL_FIXED:
1289 switch (components)
1290 {
1291 case 1:
1292 return VERTEX_FORMAT_FIXED1;
1293 case 2:
1294 return VERTEX_FORMAT_FIXED2;
1295 case 3:
1296 return VERTEX_FORMAT_FIXED3;
1297 case 4:
1298 return VERTEX_FORMAT_FIXED4;
1299 default:
1300 UNREACHABLE();
1301 break;
1302 }
1303 case GL_INT_2_10_10_10_REV:
1304 if (pureInteger)
1305 return VERTEX_FORMAT_SINT210_INT;
1306 if (normalized)
1307 return VERTEX_FORMAT_SINT210_NORM;
1308 return VERTEX_FORMAT_SINT210;
1309 case GL_UNSIGNED_INT_2_10_10_10_REV:
1310 if (pureInteger)
1311 return VERTEX_FORMAT_UINT210_INT;
1312 if (normalized)
1313 return VERTEX_FORMAT_UINT210_NORM;
1314 return VERTEX_FORMAT_UINT210;
1315 default:
1316 UNREACHABLE();
1317 break;
1318 }
1319 return VERTEX_FORMAT_UBYTE1;
1320}
1321
1322VertexFormatType GetVertexFormatType(const VertexAttribute &attrib)
1323{
1324 return GetVertexFormatType(attrib.type, attrib.normalized, attrib.size, attrib.pureInteger);
1325}
1326
1327VertexFormatType GetVertexFormatType(const VertexAttribute &attrib, GLenum currentValueType)
1328{
1329 if (!attrib.enabled)
1330 {
1331 return GetVertexFormatType(currentValueType, GL_FALSE, 4, (currentValueType != GL_FLOAT));
1332 }
1333 return GetVertexFormatType(attrib);
1334}
1335
1336const VertexFormat &GetVertexFormatFromType(VertexFormatType vertexFormatType)
1337{
1338 switch (vertexFormatType)
1339 {
1340 case VERTEX_FORMAT_SBYTE1:
1341 {
1342 static const VertexFormat format(GL_BYTE, GL_FALSE, 1, false);
1343 return format;
1344 }
1345 case VERTEX_FORMAT_SBYTE1_NORM:
1346 {
1347 static const VertexFormat format(GL_BYTE, GL_TRUE, 1, false);
1348 return format;
1349 }
1350 case VERTEX_FORMAT_SBYTE2:
1351 {
1352 static const VertexFormat format(GL_BYTE, GL_FALSE, 2, false);
1353 return format;
1354 }
1355 case VERTEX_FORMAT_SBYTE2_NORM:
1356 {
1357 static const VertexFormat format(GL_BYTE, GL_TRUE, 2, false);
1358 return format;
1359 }
1360 case VERTEX_FORMAT_SBYTE3:
1361 {
1362 static const VertexFormat format(GL_BYTE, GL_FALSE, 3, false);
1363 return format;
1364 }
1365 case VERTEX_FORMAT_SBYTE3_NORM:
1366 {
1367 static const VertexFormat format(GL_BYTE, GL_TRUE, 3, false);
1368 return format;
1369 }
1370 case VERTEX_FORMAT_SBYTE4:
1371 {
1372 static const VertexFormat format(GL_BYTE, GL_FALSE, 4, false);
1373 return format;
1374 }
1375 case VERTEX_FORMAT_SBYTE4_NORM:
1376 {
1377 static const VertexFormat format(GL_BYTE, GL_TRUE, 4, false);
1378 return format;
1379 }
1380 case VERTEX_FORMAT_UBYTE1:
1381 {
1382 static const VertexFormat format(GL_UNSIGNED_BYTE, GL_FALSE, 1, false);
1383 return format;
1384 }
1385 case VERTEX_FORMAT_UBYTE1_NORM:
1386 {
1387 static const VertexFormat format(GL_UNSIGNED_BYTE, GL_TRUE, 1, false);
1388 return format;
1389 }
1390 case VERTEX_FORMAT_UBYTE2:
1391 {
1392 static const VertexFormat format(GL_UNSIGNED_BYTE, GL_FALSE, 2, false);
1393 return format;
1394 }
1395 case VERTEX_FORMAT_UBYTE2_NORM:
1396 {
1397 static const VertexFormat format(GL_UNSIGNED_BYTE, GL_TRUE, 2, false);
1398 return format;
1399 }
1400 case VERTEX_FORMAT_UBYTE3:
1401 {
1402 static const VertexFormat format(GL_UNSIGNED_BYTE, GL_FALSE, 3, false);
1403 return format;
1404 }
1405 case VERTEX_FORMAT_UBYTE3_NORM:
1406 {
1407 static const VertexFormat format(GL_UNSIGNED_BYTE, GL_TRUE, 3, false);
1408 return format;
1409 }
1410 case VERTEX_FORMAT_UBYTE4:
1411 {
1412 static const VertexFormat format(GL_UNSIGNED_BYTE, GL_FALSE, 4, false);
1413 return format;
1414 }
1415 case VERTEX_FORMAT_UBYTE4_NORM:
1416 {
1417 static const VertexFormat format(GL_UNSIGNED_BYTE, GL_TRUE, 4, false);
1418 return format;
1419 }
1420 case VERTEX_FORMAT_SSHORT1:
1421 {
1422 static const VertexFormat format(GL_SHORT, GL_FALSE, 1, false);
1423 return format;
1424 }
1425 case VERTEX_FORMAT_SSHORT1_NORM:
1426 {
1427 static const VertexFormat format(GL_SHORT, GL_TRUE, 1, false);
1428 return format;
1429 }
1430 case VERTEX_FORMAT_SSHORT2:
1431 {
1432 static const VertexFormat format(GL_SHORT, GL_FALSE, 2, false);
1433 return format;
1434 }
1435 case VERTEX_FORMAT_SSHORT2_NORM:
1436 {
1437 static const VertexFormat format(GL_SHORT, GL_TRUE, 2, false);
1438 return format;
1439 }
1440 case VERTEX_FORMAT_SSHORT3:
1441 {
1442 static const VertexFormat format(GL_SHORT, GL_FALSE, 3, false);
1443 return format;
1444 }
1445 case VERTEX_FORMAT_SSHORT3_NORM:
1446 {
1447 static const VertexFormat format(GL_SHORT, GL_TRUE, 3, false);
1448 return format;
1449 }
1450 case VERTEX_FORMAT_SSHORT4:
1451 {
1452 static const VertexFormat format(GL_SHORT, GL_FALSE, 4, false);
1453 return format;
1454 }
1455 case VERTEX_FORMAT_SSHORT4_NORM:
1456 {
1457 static const VertexFormat format(GL_SHORT, GL_TRUE, 4, false);
1458 return format;
1459 }
1460 case VERTEX_FORMAT_USHORT1:
1461 {
1462 static const VertexFormat format(GL_UNSIGNED_SHORT, GL_FALSE, 1, false);
1463 return format;
1464 }
1465 case VERTEX_FORMAT_USHORT1_NORM:
1466 {
1467 static const VertexFormat format(GL_UNSIGNED_SHORT, GL_TRUE, 1, false);
1468 return format;
1469 }
1470 case VERTEX_FORMAT_USHORT2:
1471 {
1472 static const VertexFormat format(GL_UNSIGNED_SHORT, GL_FALSE, 2, false);
1473 return format;
1474 }
1475 case VERTEX_FORMAT_USHORT2_NORM:
1476 {
1477 static const VertexFormat format(GL_UNSIGNED_SHORT, GL_TRUE, 2, false);
1478 return format;
1479 }
1480 case VERTEX_FORMAT_USHORT3:
1481 {
1482 static const VertexFormat format(GL_UNSIGNED_SHORT, GL_FALSE, 3, false);
1483 return format;
1484 }
1485 case VERTEX_FORMAT_USHORT3_NORM:
1486 {
1487 static const VertexFormat format(GL_UNSIGNED_SHORT, GL_TRUE, 3, false);
1488 return format;
1489 }
1490 case VERTEX_FORMAT_USHORT4:
1491 {
1492 static const VertexFormat format(GL_UNSIGNED_SHORT, GL_FALSE, 4, false);
1493 return format;
1494 }
1495 case VERTEX_FORMAT_USHORT4_NORM:
1496 {
1497 static const VertexFormat format(GL_UNSIGNED_SHORT, GL_TRUE, 4, false);
1498 return format;
1499 }
1500 case VERTEX_FORMAT_SINT1:
1501 {
1502 static const VertexFormat format(GL_INT, GL_FALSE, 1, false);
1503 return format;
1504 }
1505 case VERTEX_FORMAT_SINT1_NORM:
1506 {
1507 static const VertexFormat format(GL_INT, GL_TRUE, 1, false);
1508 return format;
1509 }
1510 case VERTEX_FORMAT_SINT2:
1511 {
1512 static const VertexFormat format(GL_INT, GL_FALSE, 2, false);
1513 return format;
1514 }
1515 case VERTEX_FORMAT_SINT2_NORM:
1516 {
1517 static const VertexFormat format(GL_INT, GL_TRUE, 2, false);
1518 return format;
1519 }
1520 case VERTEX_FORMAT_SINT3:
1521 {
1522 static const VertexFormat format(GL_INT, GL_FALSE, 3, false);
1523 return format;
1524 }
1525 case VERTEX_FORMAT_SINT3_NORM:
1526 {
1527 static const VertexFormat format(GL_INT, GL_TRUE, 3, false);
1528 return format;
1529 }
1530 case VERTEX_FORMAT_SINT4:
1531 {
1532 static const VertexFormat format(GL_INT, GL_FALSE, 4, false);
1533 return format;
1534 }
1535 case VERTEX_FORMAT_SINT4_NORM:
1536 {
1537 static const VertexFormat format(GL_INT, GL_TRUE, 4, false);
1538 return format;
1539 }
1540 case VERTEX_FORMAT_UINT1:
1541 {
1542 static const VertexFormat format(GL_UNSIGNED_INT, GL_FALSE, 1, false);
1543 return format;
1544 }
1545 case VERTEX_FORMAT_UINT1_NORM:
1546 {
1547 static const VertexFormat format(GL_UNSIGNED_INT, GL_TRUE, 1, false);
1548 return format;
1549 }
1550 case VERTEX_FORMAT_UINT2:
1551 {
1552 static const VertexFormat format(GL_UNSIGNED_INT, GL_FALSE, 2, false);
1553 return format;
1554 }
1555 case VERTEX_FORMAT_UINT2_NORM:
1556 {
1557 static const VertexFormat format(GL_UNSIGNED_INT, GL_TRUE, 2, false);
1558 return format;
1559 }
1560 case VERTEX_FORMAT_UINT3:
1561 {
1562 static const VertexFormat format(GL_UNSIGNED_INT, GL_FALSE, 3, false);
1563 return format;
1564 }
1565 case VERTEX_FORMAT_UINT3_NORM:
1566 {
1567 static const VertexFormat format(GL_UNSIGNED_INT, GL_TRUE, 3, false);
1568 return format;
1569 }
1570 case VERTEX_FORMAT_UINT4:
1571 {
1572 static const VertexFormat format(GL_UNSIGNED_INT, GL_FALSE, 4, false);
1573 return format;
1574 }
1575 case VERTEX_FORMAT_UINT4_NORM:
1576 {
1577 static const VertexFormat format(GL_UNSIGNED_INT, GL_TRUE, 4, false);
1578 return format;
1579 }
1580 case VERTEX_FORMAT_SBYTE1_INT:
1581 {
1582 static const VertexFormat format(GL_BYTE, GL_FALSE, 1, true);
1583 return format;
1584 }
1585 case VERTEX_FORMAT_SBYTE2_INT:
1586 {
1587 static const VertexFormat format(GL_BYTE, GL_FALSE, 2, true);
1588 return format;
1589 }
1590 case VERTEX_FORMAT_SBYTE3_INT:
1591 {
1592 static const VertexFormat format(GL_BYTE, GL_FALSE, 3, true);
1593 return format;
1594 }
1595 case VERTEX_FORMAT_SBYTE4_INT:
1596 {
1597 static const VertexFormat format(GL_BYTE, GL_FALSE, 4, true);
1598 return format;
1599 }
1600 case VERTEX_FORMAT_UBYTE1_INT:
1601 {
1602 static const VertexFormat format(GL_UNSIGNED_BYTE, GL_FALSE, 1, true);
1603 return format;
1604 }
1605 case VERTEX_FORMAT_UBYTE2_INT:
1606 {
1607 static const VertexFormat format(GL_UNSIGNED_BYTE, GL_FALSE, 2, true);
1608 return format;
1609 }
1610 case VERTEX_FORMAT_UBYTE3_INT:
1611 {
1612 static const VertexFormat format(GL_UNSIGNED_BYTE, GL_FALSE, 3, true);
1613 return format;
1614 }
1615 case VERTEX_FORMAT_UBYTE4_INT:
1616 {
1617 static const VertexFormat format(GL_UNSIGNED_BYTE, GL_FALSE, 4, true);
1618 return format;
1619 }
1620 case VERTEX_FORMAT_SSHORT1_INT:
1621 {
1622 static const VertexFormat format(GL_SHORT, GL_FALSE, 1, true);
1623 return format;
1624 }
1625 case VERTEX_FORMAT_SSHORT2_INT:
1626 {
1627 static const VertexFormat format(GL_SHORT, GL_FALSE, 2, true);
1628 return format;
1629 }
1630 case VERTEX_FORMAT_SSHORT3_INT:
1631 {
1632 static const VertexFormat format(GL_SHORT, GL_FALSE, 3, true);
1633 return format;
1634 }
1635 case VERTEX_FORMAT_SSHORT4_INT:
1636 {
1637 static const VertexFormat format(GL_SHORT, GL_FALSE, 4, true);
1638 return format;
1639 }
1640 case VERTEX_FORMAT_USHORT1_INT:
1641 {
1642 static const VertexFormat format(GL_UNSIGNED_SHORT, GL_FALSE, 1, true);
1643 return format;
1644 }
1645 case VERTEX_FORMAT_USHORT2_INT:
1646 {
1647 static const VertexFormat format(GL_UNSIGNED_SHORT, GL_FALSE, 2, true);
1648 return format;
1649 }
1650 case VERTEX_FORMAT_USHORT3_INT:
1651 {
1652 static const VertexFormat format(GL_UNSIGNED_SHORT, GL_FALSE, 3, true);
1653 return format;
1654 }
1655 case VERTEX_FORMAT_USHORT4_INT:
1656 {
1657 static const VertexFormat format(GL_UNSIGNED_SHORT, GL_FALSE, 4, true);
1658 return format;
1659 }
1660 case VERTEX_FORMAT_SINT1_INT:
1661 {
1662 static const VertexFormat format(GL_INT, GL_FALSE, 1, true);
1663 return format;
1664 }
1665 case VERTEX_FORMAT_SINT2_INT:
1666 {
1667 static const VertexFormat format(GL_INT, GL_FALSE, 2, true);
1668 return format;
1669 }
1670 case VERTEX_FORMAT_SINT3_INT:
1671 {
1672 static const VertexFormat format(GL_INT, GL_FALSE, 3, true);
1673 return format;
1674 }
1675 case VERTEX_FORMAT_SINT4_INT:
1676 {
1677 static const VertexFormat format(GL_INT, GL_FALSE, 4, true);
1678 return format;
1679 }
1680 case VERTEX_FORMAT_UINT1_INT:
1681 {
1682 static const VertexFormat format(GL_UNSIGNED_INT, GL_FALSE, 1, true);
1683 return format;
1684 }
1685 case VERTEX_FORMAT_UINT2_INT:
1686 {
1687 static const VertexFormat format(GL_UNSIGNED_INT, GL_FALSE, 2, true);
1688 return format;
1689 }
1690 case VERTEX_FORMAT_UINT3_INT:
1691 {
1692 static const VertexFormat format(GL_UNSIGNED_INT, GL_FALSE, 3, true);
1693 return format;
1694 }
1695 case VERTEX_FORMAT_UINT4_INT:
1696 {
1697 static const VertexFormat format(GL_UNSIGNED_INT, GL_FALSE, 4, true);
1698 return format;
1699 }
1700 case VERTEX_FORMAT_FIXED1:
1701 {
1702 static const VertexFormat format(GL_FIXED, GL_FALSE, 1, false);
1703 return format;
1704 }
1705 case VERTEX_FORMAT_FIXED2:
1706 {
1707 static const VertexFormat format(GL_FIXED, GL_FALSE, 2, false);
1708 return format;
1709 }
1710 case VERTEX_FORMAT_FIXED3:
1711 {
1712 static const VertexFormat format(GL_FIXED, GL_FALSE, 3, false);
1713 return format;
1714 }
1715 case VERTEX_FORMAT_FIXED4:
1716 {
1717 static const VertexFormat format(GL_FIXED, GL_FALSE, 4, false);
1718 return format;
1719 }
1720 case VERTEX_FORMAT_HALF1:
1721 {
1722 static const VertexFormat format(GL_HALF_FLOAT, GL_FALSE, 1, false);
1723 return format;
1724 }
1725 case VERTEX_FORMAT_HALF2:
1726 {
1727 static const VertexFormat format(GL_HALF_FLOAT, GL_FALSE, 2, false);
1728 return format;
1729 }
1730 case VERTEX_FORMAT_HALF3:
1731 {
1732 static const VertexFormat format(GL_HALF_FLOAT, GL_FALSE, 3, false);
1733 return format;
1734 }
1735 case VERTEX_FORMAT_HALF4:
1736 {
1737 static const VertexFormat format(GL_HALF_FLOAT, GL_FALSE, 4, false);
1738 return format;
1739 }
1740 case VERTEX_FORMAT_FLOAT1:
1741 {
1742 static const VertexFormat format(GL_FLOAT, GL_FALSE, 1, false);
1743 return format;
1744 }
1745 case VERTEX_FORMAT_FLOAT2:
1746 {
1747 static const VertexFormat format(GL_FLOAT, GL_FALSE, 2, false);
1748 return format;
1749 }
1750 case VERTEX_FORMAT_FLOAT3:
1751 {
1752 static const VertexFormat format(GL_FLOAT, GL_FALSE, 3, false);
1753 return format;
1754 }
1755 case VERTEX_FORMAT_FLOAT4:
1756 {
1757 static const VertexFormat format(GL_FLOAT, GL_FALSE, 4, false);
1758 return format;
1759 }
1760 case VERTEX_FORMAT_SINT210:
1761 {
1762 static const VertexFormat format(GL_INT_2_10_10_10_REV, GL_FALSE, 4, false);
1763 return format;
1764 }
1765 case VERTEX_FORMAT_UINT210:
1766 {
1767 static const VertexFormat format(GL_UNSIGNED_INT_2_10_10_10_REV, GL_FALSE, 4, false);
1768 return format;
1769 }
1770 case VERTEX_FORMAT_SINT210_NORM:
1771 {
1772 static const VertexFormat format(GL_INT_2_10_10_10_REV, GL_TRUE, 4, false);
1773 return format;
1774 }
1775 case VERTEX_FORMAT_UINT210_NORM:
1776 {
1777 static const VertexFormat format(GL_UNSIGNED_INT_2_10_10_10_REV, GL_TRUE, 4, false);
1778 return format;
1779 }
1780 case VERTEX_FORMAT_SINT210_INT:
1781 {
1782 static const VertexFormat format(GL_INT_2_10_10_10_REV, GL_FALSE, 4, true);
1783 return format;
1784 }
1785 case VERTEX_FORMAT_UINT210_INT:
1786 {
1787 static const VertexFormat format(GL_UNSIGNED_INT_2_10_10_10_REV, GL_FALSE, 4, true);
1788 return format;
1789 }
1790 default:
1791 {
1792 static const VertexFormat format(GL_NONE, GL_FALSE, 0, false);
1793 return format;
1794 }
1795 }
1796}
1797
1798VertexFormat::VertexFormat(GLenum typeIn, GLboolean normalizedIn, GLuint componentsIn, bool pureIntegerIn)
1799 : type(typeIn),
1800 normalized(normalizedIn),
1801 components(componentsIn),
1802 pureInteger(pureIntegerIn)
1803{
1804 // float -> !normalized
1805 ASSERT(!(type == GL_FLOAT || type == GL_HALF_FLOAT || type == GL_FIXED) || normalized == GL_FALSE);
1806}
1807
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1808}