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gerrit-public.fairphone.software / platform / external / angle / adff67b5e62a5458720be9de97ee7e03f7a6f638 / . / src / libANGLE / formatutils.cpp
blob: 0ea125e25395e7712dc420aa3bd5ed7c56bb15d4 [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"
13#include "libANGLE/renderer/Renderer.h"
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]14
15namespace gl
16{
17
18// ES2 requires that format is equal to internal format at all glTex*Image2D entry points and the implementation
19// can decide the true, sized, internal format. The ES2FormatMap determines the internal format for all valid
20// format and type combinations.
21
22typedef std::pair<GLenum, GLenum> FormatTypePair;
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]23typedef std::pair<FormatTypePair, GLenum> FormatPair;
24typedef std::map<FormatTypePair, GLenum> FormatMap;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]25
Jamie Madill89a0bf52013-09-18 14:36:24 -0400[diff] [blame]26// A helper function to insert data into the format map with fewer characters.
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]27static inline void InsertFormatMapping(FormatMap *map, GLenum format, GLenum type, GLenum internalFormat)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]28{
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]29 map->insert(FormatPair(FormatTypePair(format, type), internalFormat));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]30}
31
Geoff Lange4a492b2014-06-19 14:14:41 -0400[diff] [blame]32FormatMap BuildFormatMap()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]33{
34 FormatMap map;
35
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]36 // | Format | Type | Internal format |
37 InsertFormatMapping(&map, GL_RGBA, GL_UNSIGNED_BYTE, GL_RGBA8);
38 InsertFormatMapping(&map, GL_RGBA, GL_BYTE, GL_RGBA8_SNORM);
39 InsertFormatMapping(&map, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, GL_RGBA4);
40 InsertFormatMapping(&map, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, GL_RGB5_A1);
41 InsertFormatMapping(&map, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, GL_RGB10_A2);
42 InsertFormatMapping(&map, GL_RGBA, GL_FLOAT, GL_RGBA32F);
43 InsertFormatMapping(&map, GL_RGBA, GL_HALF_FLOAT, GL_RGBA16F);
44 InsertFormatMapping(&map, GL_RGBA, GL_HALF_FLOAT_OES, GL_RGBA16F);
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]45
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]46 InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE, GL_RGBA8UI);
47 InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_BYTE, GL_RGBA8I);
48 InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_UNSIGNED_SHORT, GL_RGBA16UI);
49 InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_SHORT, GL_RGBA16I);
50 InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_UNSIGNED_INT, GL_RGBA32UI);
51 InsertFormatMapping(&map, GL_RGBA_INTEGER, GL_INT, GL_RGBA32I);
52 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]53
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]54 InsertFormatMapping(&map, GL_RGB, GL_UNSIGNED_BYTE, GL_RGB8);
55 InsertFormatMapping(&map, GL_RGB, GL_BYTE, GL_RGB8_SNORM);
56 InsertFormatMapping(&map, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, GL_RGB565);
57 InsertFormatMapping(&map, GL_RGB, GL_UNSIGNED_INT_10F_11F_11F_REV, GL_R11F_G11F_B10F);
58 InsertFormatMapping(&map, GL_RGB, GL_UNSIGNED_INT_5_9_9_9_REV, GL_RGB9_E5);
59 InsertFormatMapping(&map, GL_RGB, GL_FLOAT, GL_RGB32F);
60 InsertFormatMapping(&map, GL_RGB, GL_HALF_FLOAT, GL_RGB16F);
61 InsertFormatMapping(&map, GL_RGB, GL_HALF_FLOAT_OES, GL_RGB16F);
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]62
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]63 InsertFormatMapping(&map, GL_RGB_INTEGER, GL_UNSIGNED_BYTE, GL_RGB8UI);
64 InsertFormatMapping(&map, GL_RGB_INTEGER, GL_BYTE, GL_RGB8I);
65 InsertFormatMapping(&map, GL_RGB_INTEGER, GL_UNSIGNED_SHORT, GL_RGB16UI);
66 InsertFormatMapping(&map, GL_RGB_INTEGER, GL_SHORT, GL_RGB16I);
67 InsertFormatMapping(&map, GL_RGB_INTEGER, GL_UNSIGNED_INT, GL_RGB32UI);
68 InsertFormatMapping(&map, GL_RGB_INTEGER, GL_INT, GL_RGB32I);
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]69
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]70 InsertFormatMapping(&map, GL_RG, GL_UNSIGNED_BYTE, GL_RG8);
71 InsertFormatMapping(&map, GL_RG, GL_BYTE, GL_RG8_SNORM);
72 InsertFormatMapping(&map, GL_RG, GL_FLOAT, GL_RG32F);
73 InsertFormatMapping(&map, GL_RG, GL_HALF_FLOAT, GL_RG16F);
74 InsertFormatMapping(&map, GL_RG, GL_HALF_FLOAT_OES, GL_RG16F);
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]75
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]76 InsertFormatMapping(&map, GL_RG_INTEGER, GL_UNSIGNED_BYTE, GL_RG8UI);
77 InsertFormatMapping(&map, GL_RG_INTEGER, GL_BYTE, GL_RG8I);
78 InsertFormatMapping(&map, GL_RG_INTEGER, GL_UNSIGNED_SHORT, GL_RG16UI);
79 InsertFormatMapping(&map, GL_RG_INTEGER, GL_SHORT, GL_RG16I);
80 InsertFormatMapping(&map, GL_RG_INTEGER, GL_UNSIGNED_INT, GL_RG32UI);
81 InsertFormatMapping(&map, GL_RG_INTEGER, GL_INT, GL_RG32I);
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]82
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]83 InsertFormatMapping(&map, GL_RED, GL_UNSIGNED_BYTE, GL_R8);
84 InsertFormatMapping(&map, GL_RED, GL_BYTE, GL_R8_SNORM);
85 InsertFormatMapping(&map, GL_RED, GL_FLOAT, GL_R32F);
86 InsertFormatMapping(&map, GL_RED, GL_HALF_FLOAT, GL_R16F);
87 InsertFormatMapping(&map, GL_RED, GL_HALF_FLOAT_OES, GL_R16F);
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]88
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]89 InsertFormatMapping(&map, GL_RED_INTEGER, GL_UNSIGNED_BYTE, GL_R8UI);
90 InsertFormatMapping(&map, GL_RED_INTEGER, GL_BYTE, GL_R8I);
91 InsertFormatMapping(&map, GL_RED_INTEGER, GL_UNSIGNED_SHORT, GL_R16UI);
92 InsertFormatMapping(&map, GL_RED_INTEGER, GL_SHORT, GL_R16I);
93 InsertFormatMapping(&map, GL_RED_INTEGER, GL_UNSIGNED_INT, GL_R32UI);
94 InsertFormatMapping(&map, GL_RED_INTEGER, GL_INT, GL_R32I);
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]95
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]96 InsertFormatMapping(&map, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, GL_LUMINANCE8_ALPHA8_EXT);
97 InsertFormatMapping(&map, GL_LUMINANCE, GL_UNSIGNED_BYTE, GL_LUMINANCE8_EXT);
98 InsertFormatMapping(&map, GL_ALPHA, GL_UNSIGNED_BYTE, GL_ALPHA8_EXT);
99 InsertFormatMapping(&map, GL_LUMINANCE_ALPHA, GL_FLOAT, GL_LUMINANCE_ALPHA32F_EXT);
100 InsertFormatMapping(&map, GL_LUMINANCE, GL_FLOAT, GL_LUMINANCE32F_EXT);
101 InsertFormatMapping(&map, GL_ALPHA, GL_FLOAT, GL_ALPHA32F_EXT);
102 InsertFormatMapping(&map, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT, GL_LUMINANCE_ALPHA16F_EXT);
103 InsertFormatMapping(&map, GL_LUMINANCE_ALPHA, GL_HALF_FLOAT_OES, GL_LUMINANCE_ALPHA16F_EXT);
104 InsertFormatMapping(&map, GL_LUMINANCE, GL_HALF_FLOAT, GL_LUMINANCE16F_EXT);
105 InsertFormatMapping(&map, GL_LUMINANCE, GL_HALF_FLOAT_OES, GL_LUMINANCE16F_EXT);
106 InsertFormatMapping(&map, GL_ALPHA, GL_HALF_FLOAT, GL_ALPHA16F_EXT);
107 InsertFormatMapping(&map, GL_ALPHA, GL_HALF_FLOAT_OES, GL_ALPHA16F_EXT);
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]108
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]109 InsertFormatMapping(&map, GL_BGRA_EXT, GL_UNSIGNED_BYTE, GL_BGRA8_EXT);
110 InsertFormatMapping(&map, GL_BGRA_EXT, GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT, GL_BGRA4_ANGLEX);
111 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]112
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]113 InsertFormatMapping(&map, GL_SRGB_EXT, GL_UNSIGNED_BYTE, GL_SRGB8);
114 InsertFormatMapping(&map, GL_SRGB_ALPHA_EXT, GL_UNSIGNED_BYTE, GL_SRGB8_ALPHA8);
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_COMPRESSED_RGB_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE, GL_COMPRESSED_RGB_S3TC_DXT1_EXT);
117 InsertFormatMapping(&map, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_UNSIGNED_BYTE, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT);
118 InsertFormatMapping(&map, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, GL_UNSIGNED_BYTE, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE);
119 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]120
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]121 InsertFormatMapping(&map, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, GL_DEPTH_COMPONENT16);
122 InsertFormatMapping(&map, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, GL_DEPTH_COMPONENT32_OES);
123 InsertFormatMapping(&map, GL_DEPTH_COMPONENT, GL_FLOAT, GL_DEPTH_COMPONENT32F);
Geoff Langcec35902014-04-16 10:52:36 -0400[diff] [blame]124
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]125 InsertFormatMapping(&map, GL_STENCIL, GL_UNSIGNED_BYTE, GL_STENCIL_INDEX8);
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]126
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]127 InsertFormatMapping(&map, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, GL_DEPTH24_STENCIL8);
128 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]129
130 return map;
131}
132
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]133Type::Type()
134 : bytes(0),
Olli Etuaho11ffe1b2015-03-24 17:28:18 +0200[diff] [blame]135 bytesShift(0),
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]136 specialInterpretation(false)
Geoff Langfe28ca02013-06-04 10:10:48 -0400[diff] [blame]137{
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]138}
139
Olli Etuaho31f8f4f2015-03-25 16:03:57 +0200[diff] [blame]140static Type GenTypeInfo(GLuint bytes, bool specialInterpretation)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]141{
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]142 Type info;
143 info.bytes = bytes;
Olli Etuaho11ffe1b2015-03-24 17:28:18 +0200[diff] [blame]144 GLuint i = 0;
145 while ((1u << i) < bytes)
146 {
147 ++i;
148 }
149 info.bytesShift = i;
150 ASSERT((1u << info.bytesShift) == bytes);
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]151 info.specialInterpretation = specialInterpretation;
Olli Etuaho31f8f4f2015-03-25 16:03:57 +0200[diff] [blame]152 return info;
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]153}
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]154
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]155bool operator<(const Type& a, const Type& b)
156{
157 return memcmp(&a, &b, sizeof(Type)) < 0;
158}
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]159
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]160// Information about internal formats
Geoff Lang493daf52014-07-03 13:38:44 -0400[diff] [blame]161static bool AlwaysSupported(GLuint, const Extensions &)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]162{
Geoff Lang493daf52014-07-03 13:38:44 -0400[diff] [blame]163 return true;
164}
165
Geoff Lang493daf52014-07-03 13:38:44 -0400[diff] [blame]166static bool NeverSupported(GLuint, const Extensions &)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]167{
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]168 return false;
169}
170
Geoff Lange4a492b2014-06-19 14:14:41 -0400[diff] [blame]171template <GLuint minCoreGLVersion>
Geoff Langabce7622014-09-19 16:13:00 -0400[diff] [blame]172static bool RequireES(GLuint clientVersion, const Extensions &)
Geoff Lange4a492b2014-06-19 14:14:41 -0400[diff] [blame]173{
174 return clientVersion >= minCoreGLVersion;
175}
176
Geoff Langcec35902014-04-16 10:52:36 -0400[diff] [blame]177// Pointer to a boolean memeber of the Extensions struct
178typedef bool(Extensions::*ExtensionBool);
179
180// Check support for a single extension
181template <ExtensionBool bool1>
Geoff Langabce7622014-09-19 16:13:00 -0400[diff] [blame]182static bool RequireExt(GLuint, const Extensions & extensions)
Geoff Langcec35902014-04-16 10:52:36 -0400[diff] [blame]183{
Geoff Lange4a492b2014-06-19 14:14:41 -0400[diff] [blame]184 return extensions.*bool1;
185}
186
187// Check for a minimum client version or a single extension
188template <GLuint minCoreGLVersion, ExtensionBool bool1>
Geoff Langabce7622014-09-19 16:13:00 -0400[diff] [blame]189static bool RequireESOrExt(GLuint clientVersion, const Extensions &extensions)
Geoff Lange4a492b2014-06-19 14:14:41 -0400[diff] [blame]190{
191 return clientVersion >= minCoreGLVersion || extensions.*bool1;
192}
193
194// Check for a minimum client version or two extensions
195template <GLuint minCoreGLVersion, ExtensionBool bool1, ExtensionBool bool2>
Geoff Langabce7622014-09-19 16:13:00 -0400[diff] [blame]196static bool RequireESOrExtAndExt(GLuint clientVersion, const Extensions &extensions)
Geoff Lange4a492b2014-06-19 14:14:41 -0400[diff] [blame]197{
Geoff Langabce7622014-09-19 16:13:00 -0400[diff] [blame]198 return clientVersion >= minCoreGLVersion || (extensions.*bool1 && extensions.*bool2);
199}
200
201// Check for a minimum client version or at least one of two extensions
202template <GLuint minCoreGLVersion, ExtensionBool bool1, ExtensionBool bool2>
203static bool RequireESOrExtOrExt(GLuint clientVersion, const Extensions &extensions)
204{
205 return clientVersion >= minCoreGLVersion || extensions.*bool1 || extensions.*bool2;
Geoff Langcec35902014-04-16 10:52:36 -0400[diff] [blame]206}
207
208// Check support for two extensions
209template <ExtensionBool bool1, ExtensionBool bool2>
Geoff Langabce7622014-09-19 16:13:00 -0400[diff] [blame]210static bool RequireExtAndExt(GLuint, const Extensions &extensions)
Geoff Langcec35902014-04-16 10:52:36 -0400[diff] [blame]211{
Geoff Langabce7622014-09-19 16:13:00 -0400[diff] [blame]212 return extensions.*bool1 && extensions.*bool2;
Geoff Langcec35902014-04-16 10:52:36 -0400[diff] [blame]213}
214
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]215InternalFormat::InternalFormat()
216 : redBits(0),
217 greenBits(0),
218 blueBits(0),
219 luminanceBits(0),
220 alphaBits(0),
221 sharedBits(0),
222 depthBits(0),
223 stencilBits(0),
224 pixelBytes(0),
225 componentCount(0),
Corentin Wallezbc99bb62015-05-14 17:42:20 -0400[diff] [blame]226 compressed(false),
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]227 compressedBlockWidth(0),
228 compressedBlockHeight(0),
229 format(GL_NONE),
230 type(GL_NONE),
231 componentType(GL_NONE),
232 colorEncoding(GL_NONE),
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]233 textureSupport(NeverSupported),
234 renderSupport(NeverSupported),
235 filterSupport(NeverSupported)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]236{
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]237}
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]238
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]239static InternalFormat UnsizedFormat(GLenum format, InternalFormat::SupportCheckFunction textureSupport,
240 InternalFormat::SupportCheckFunction renderSupport,
241 InternalFormat::SupportCheckFunction filterSupport)
242{
243 InternalFormat formatInfo;
244 formatInfo.format = format;
245 formatInfo.textureSupport = textureSupport;
246 formatInfo.renderSupport = renderSupport;
247 formatInfo.filterSupport = filterSupport;
248 return formatInfo;
249}
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]250
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]251static InternalFormat RGBAFormat(GLuint red, GLuint green, GLuint blue, GLuint alpha, GLuint shared,
252 GLenum format, GLenum type, GLenum componentType, bool srgb,
253 InternalFormat::SupportCheckFunction textureSupport,
254 InternalFormat::SupportCheckFunction renderSupport,
255 InternalFormat::SupportCheckFunction filterSupport)
256{
257 InternalFormat formatInfo;
258 formatInfo.redBits = red;
259 formatInfo.greenBits = green;
260 formatInfo.blueBits = blue;
261 formatInfo.alphaBits = alpha;
262 formatInfo.sharedBits = shared;
263 formatInfo.pixelBytes = (red + green + blue + alpha + shared) / 8;
264 formatInfo.componentCount = ((red > 0) ? 1 : 0) + ((green > 0) ? 1 : 0) + ((blue > 0) ? 1 : 0) + ((alpha > 0) ? 1 : 0);
265 formatInfo.format = format;
266 formatInfo.type = type;
267 formatInfo.componentType = componentType;
268 formatInfo.colorEncoding = (srgb ? GL_SRGB : GL_LINEAR);
269 formatInfo.textureSupport = textureSupport;
270 formatInfo.renderSupport = renderSupport;
271 formatInfo.filterSupport = filterSupport;
272 return formatInfo;
273}
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]274
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]275static InternalFormat LUMAFormat(GLuint luminance, GLuint alpha, GLenum format, GLenum type, GLenum componentType,
276 InternalFormat::SupportCheckFunction textureSupport,
277 InternalFormat::SupportCheckFunction renderSupport,
278 InternalFormat::SupportCheckFunction filterSupport)
279{
280 InternalFormat formatInfo;
281 formatInfo.luminanceBits = luminance;
282 formatInfo.alphaBits = alpha;
283 formatInfo.pixelBytes = (luminance + alpha) / 8;
284 formatInfo.componentCount = ((luminance > 0) ? 1 : 0) + ((alpha > 0) ? 1 : 0);
285 formatInfo.format = format;
286 formatInfo.type = type;
287 formatInfo.componentType = componentType;
288 formatInfo.colorEncoding = GL_LINEAR;
289 formatInfo.textureSupport = textureSupport;
290 formatInfo.renderSupport = renderSupport;
291 formatInfo.filterSupport = filterSupport;
292 return formatInfo;
293}
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]294
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]295static InternalFormat DepthStencilFormat(GLuint depthBits, GLuint stencilBits, GLuint unusedBits, GLenum format,
296 GLenum type, GLenum componentType, InternalFormat::SupportCheckFunction textureSupport,
297 InternalFormat::SupportCheckFunction renderSupport,
298 InternalFormat::SupportCheckFunction filterSupport)
299{
300 InternalFormat formatInfo;
301 formatInfo.depthBits = depthBits;
302 formatInfo.stencilBits = stencilBits;
303 formatInfo.pixelBytes = (depthBits + stencilBits + unusedBits) / 8;
304 formatInfo.componentCount = ((depthBits > 0) ? 1 : 0) + ((stencilBits > 0) ? 1 : 0);
305 formatInfo.format = format;
306 formatInfo.type = type;
307 formatInfo.componentType = componentType;
308 formatInfo.colorEncoding = GL_LINEAR;
309 formatInfo.textureSupport = textureSupport;
310 formatInfo.renderSupport = renderSupport;
311 formatInfo.filterSupport = filterSupport;
312 return formatInfo;
313}
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]314
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]315static InternalFormat CompressedFormat(GLuint compressedBlockWidth, GLuint compressedBlockHeight, GLuint compressedBlockSize,
316 GLuint componentCount, GLenum format, GLenum type, bool srgb,
317 InternalFormat::SupportCheckFunction textureSupport,
318 InternalFormat::SupportCheckFunction renderSupport,
319 InternalFormat::SupportCheckFunction filterSupport)
320{
321 InternalFormat formatInfo;
322 formatInfo.compressedBlockWidth = compressedBlockWidth;
323 formatInfo.compressedBlockHeight = compressedBlockHeight;
324 formatInfo.pixelBytes = compressedBlockSize / 8;
325 formatInfo.componentCount = componentCount;
326 formatInfo.format = format;
327 formatInfo.type = type;
328 formatInfo.componentType = GL_UNSIGNED_NORMALIZED;
329 formatInfo.colorEncoding = (srgb ? GL_SRGB : GL_LINEAR);
330 formatInfo.compressed = true;
331 formatInfo.textureSupport = textureSupport;
332 formatInfo.renderSupport = renderSupport;
333 formatInfo.filterSupport = filterSupport;
334 return formatInfo;
335}
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]336
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]337typedef std::pair<GLenum, InternalFormat> InternalFormatInfoPair;
338typedef std::map<GLenum, InternalFormat> InternalFormatInfoMap;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]339
Geoff Lange4a492b2014-06-19 14:14:41 -0400[diff] [blame]340static InternalFormatInfoMap BuildInternalFormatInfoMap()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]341{
342 InternalFormatInfoMap map;
343
Geoff Lang9bbad182015-09-04 11:07:29 -0400[diff] [blame]344 // clang-format off
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]345 // From ES 3.0.1 spec, table 3.12
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]346 map.insert(InternalFormatInfoPair(GL_NONE, InternalFormat()));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]347
Geoff Langabce7622014-09-19 16:13:00 -0400[diff] [blame]348 // | Internal format | | R | G | B | A |S | Format | Type | Component type | SRGB | Texture supported | Renderable | Filterable |
349 map.insert(InternalFormatInfoPair(GL_R8, RGBAFormat( 8, 0, 0, 0, 0, GL_RED, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireESOrExt<3, &Extensions::textureRG>, RequireESOrExt<3, &Extensions::textureRG>, AlwaysSupported)));
350 map.insert(InternalFormatInfoPair(GL_R8_SNORM, RGBAFormat( 8, 0, 0, 0, 0, GL_RED, GL_BYTE, GL_SIGNED_NORMALIZED, false, RequireES<3>, NeverSupported, AlwaysSupported)));
351 map.insert(InternalFormatInfoPair(GL_RG8, RGBAFormat( 8, 8, 0, 0, 0, GL_RG, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireESOrExt<3, &Extensions::textureRG>, RequireESOrExt<3, &Extensions::textureRG>, AlwaysSupported)));
352 map.insert(InternalFormatInfoPair(GL_RG8_SNORM, RGBAFormat( 8, 8, 0, 0, 0, GL_RG, GL_BYTE, GL_SIGNED_NORMALIZED, false, RequireES<3>, NeverSupported, AlwaysSupported)));
353 map.insert(InternalFormatInfoPair(GL_RGB8, RGBAFormat( 8, 8, 8, 0, 0, GL_RGB, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireESOrExt<3, &Extensions::rgb8rgba8>, RequireESOrExt<3, &Extensions::rgb8rgba8>, AlwaysSupported)));
354 map.insert(InternalFormatInfoPair(GL_RGB8_SNORM, RGBAFormat( 8, 8, 8, 0, 0, GL_RGB, GL_BYTE, GL_SIGNED_NORMALIZED, false, RequireES<3>, NeverSupported, AlwaysSupported)));
355 map.insert(InternalFormatInfoPair(GL_RGB565, RGBAFormat( 5, 6, 5, 0, 0, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, GL_UNSIGNED_NORMALIZED, false, RequireES<2>, RequireES<2>, AlwaysSupported)));
356 map.insert(InternalFormatInfoPair(GL_RGBA4, RGBAFormat( 4, 4, 4, 4, 0, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, GL_UNSIGNED_NORMALIZED, false, RequireES<2>, RequireES<2>, AlwaysSupported)));
357 map.insert(InternalFormatInfoPair(GL_RGB5_A1, RGBAFormat( 5, 5, 5, 1, 0, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, GL_UNSIGNED_NORMALIZED, false, RequireES<2>, RequireES<2>, AlwaysSupported)));
358 map.insert(InternalFormatInfoPair(GL_RGBA8, RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireESOrExt<3, &Extensions::rgb8rgba8>, RequireESOrExt<3, &Extensions::rgb8rgba8>, AlwaysSupported)));
359 map.insert(InternalFormatInfoPair(GL_RGBA8_SNORM, RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA, GL_BYTE, GL_SIGNED_NORMALIZED, false, RequireES<3>, NeverSupported, AlwaysSupported)));
360 map.insert(InternalFormatInfoPair(GL_RGB10_A2, RGBAFormat(10, 10, 10, 2, 0, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, GL_UNSIGNED_NORMALIZED, false, RequireES<3>, RequireES<3>, AlwaysSupported)));
Geoff Lang9bbad182015-09-04 11:07:29 -0400[diff] [blame]361 map.insert(InternalFormatInfoPair(GL_RGB10_A2UI, RGBAFormat(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)));
Geoff Langabce7622014-09-19 16:13:00 -0400[diff] [blame]362 map.insert(InternalFormatInfoPair(GL_SRGB8, RGBAFormat( 8, 8, 8, 0, 0, GL_RGB, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, true, RequireESOrExt<3, &Extensions::sRGB>, NeverSupported, AlwaysSupported)));
363 map.insert(InternalFormatInfoPair(GL_SRGB8_ALPHA8, RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, true, RequireESOrExt<3, &Extensions::sRGB>, RequireESOrExt<3, &Extensions::sRGB>, AlwaysSupported)));
364 map.insert(InternalFormatInfoPair(GL_R11F_G11F_B10F, RGBAFormat(11, 11, 10, 0, 0, GL_RGB, GL_UNSIGNED_INT_10F_11F_11F_REV, GL_FLOAT, false, RequireES<3>, RequireExt<&Extensions::colorBufferFloat>, AlwaysSupported)));
365 map.insert(InternalFormatInfoPair(GL_RGB9_E5, RGBAFormat( 9, 9, 9, 0, 5, GL_RGB, GL_UNSIGNED_INT_5_9_9_9_REV, GL_FLOAT, false, RequireES<3>, NeverSupported, AlwaysSupported)));
366 map.insert(InternalFormatInfoPair(GL_R8I, RGBAFormat( 8, 0, 0, 0, 0, GL_RED_INTEGER, GL_BYTE, GL_INT, false, RequireES<3>, RequireES<3>, NeverSupported)));
367 map.insert(InternalFormatInfoPair(GL_R8UI, RGBAFormat( 8, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, RequireES<3>, RequireES<3>, NeverSupported)));
368 map.insert(InternalFormatInfoPair(GL_R16I, RGBAFormat(16, 0, 0, 0, 0, GL_RED_INTEGER, GL_SHORT, GL_INT, false, RequireES<3>, RequireES<3>, NeverSupported)));
369 map.insert(InternalFormatInfoPair(GL_R16UI, RGBAFormat(16, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, RequireES<3>, RequireES<3>, NeverSupported)));
370 map.insert(InternalFormatInfoPair(GL_R32I, RGBAFormat(32, 0, 0, 0, 0, GL_RED_INTEGER, GL_INT, GL_INT, false, RequireES<3>, RequireES<3>, NeverSupported)));
371 map.insert(InternalFormatInfoPair(GL_R32UI, RGBAFormat(32, 0, 0, 0, 0, GL_RED_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, RequireES<3>, RequireES<3>, NeverSupported)));
372 map.insert(InternalFormatInfoPair(GL_RG8I, RGBAFormat( 8, 8, 0, 0, 0, GL_RG_INTEGER, GL_BYTE, GL_INT, false, RequireES<3>, RequireES<3>, NeverSupported)));
373 map.insert(InternalFormatInfoPair(GL_RG8UI, RGBAFormat( 8, 8, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, RequireES<3>, RequireES<3>, NeverSupported)));
374 map.insert(InternalFormatInfoPair(GL_RG16I, RGBAFormat(16, 16, 0, 0, 0, GL_RG_INTEGER, GL_SHORT, GL_INT, false, RequireES<3>, RequireES<3>, NeverSupported)));
375 map.insert(InternalFormatInfoPair(GL_RG16UI, RGBAFormat(16, 16, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, RequireES<3>, RequireES<3>, NeverSupported)));
376 map.insert(InternalFormatInfoPair(GL_RG32I, RGBAFormat(32, 32, 0, 0, 0, GL_RG_INTEGER, GL_INT, GL_INT, false, RequireES<3>, RequireES<3>, NeverSupported)));
377 map.insert(InternalFormatInfoPair(GL_RG32UI, RGBAFormat(32, 32, 0, 0, 0, GL_RG_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, RequireES<3>, RequireES<3>, NeverSupported)));
378 map.insert(InternalFormatInfoPair(GL_RGB8I, RGBAFormat( 8, 8, 8, 0, 0, GL_RGB_INTEGER, GL_BYTE, GL_INT, false, RequireES<3>, NeverSupported, NeverSupported)));
379 map.insert(InternalFormatInfoPair(GL_RGB8UI, RGBAFormat( 8, 8, 8, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, RequireES<3>, NeverSupported, NeverSupported)));
380 map.insert(InternalFormatInfoPair(GL_RGB16I, RGBAFormat(16, 16, 16, 0, 0, GL_RGB_INTEGER, GL_SHORT, GL_INT, false, RequireES<3>, NeverSupported, NeverSupported)));
381 map.insert(InternalFormatInfoPair(GL_RGB16UI, RGBAFormat(16, 16, 16, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, RequireES<3>, NeverSupported, NeverSupported)));
382 map.insert(InternalFormatInfoPair(GL_RGB32I, RGBAFormat(32, 32, 32, 0, 0, GL_RGB_INTEGER, GL_INT, GL_INT, false, RequireES<3>, NeverSupported, NeverSupported)));
383 map.insert(InternalFormatInfoPair(GL_RGB32UI, RGBAFormat(32, 32, 32, 0, 0, GL_RGB_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, RequireES<3>, NeverSupported, NeverSupported)));
384 map.insert(InternalFormatInfoPair(GL_RGBA8I, RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA_INTEGER, GL_BYTE, GL_INT, false, RequireES<3>, RequireES<3>, NeverSupported)));
385 map.insert(InternalFormatInfoPair(GL_RGBA8UI, RGBAFormat( 8, 8, 8, 8, 0, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE, GL_UNSIGNED_INT, false, RequireES<3>, RequireES<3>, NeverSupported)));
386 map.insert(InternalFormatInfoPair(GL_RGBA16I, RGBAFormat(16, 16, 16, 16, 0, GL_RGBA_INTEGER, GL_SHORT, GL_INT, false, RequireES<3>, RequireES<3>, NeverSupported)));
387 map.insert(InternalFormatInfoPair(GL_RGBA16UI, RGBAFormat(16, 16, 16, 16, 0, GL_RGBA_INTEGER, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT, false, RequireES<3>, RequireES<3>, NeverSupported)));
388 map.insert(InternalFormatInfoPair(GL_RGBA32I, RGBAFormat(32, 32, 32, 32, 0, GL_RGBA_INTEGER, GL_INT, GL_INT, false, RequireES<3>, RequireES<3>, NeverSupported)));
389 map.insert(InternalFormatInfoPair(GL_RGBA32UI, RGBAFormat(32, 32, 32, 32, 0, GL_RGBA_INTEGER, GL_UNSIGNED_INT, GL_UNSIGNED_INT, false, RequireES<3>, RequireES<3>, NeverSupported)));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]390
Geoff Langabce7622014-09-19 16:13:00 -0400[diff] [blame]391 map.insert(InternalFormatInfoPair(GL_BGRA8_EXT, RGBAFormat( 8, 8, 8, 8, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, false, RequireExt<&Extensions::textureFormatBGRA8888>, RequireExt<&Extensions::textureFormatBGRA8888>, AlwaysSupported)));
392 map.insert(InternalFormatInfoPair(GL_BGRA4_ANGLEX, RGBAFormat( 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)));
393 map.insert(InternalFormatInfoPair(GL_BGR5_A1_ANGLEX, RGBAFormat( 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]394
395 // Floating point renderability and filtering is provided by OES_texture_float and OES_texture_half_float
Geoff Langabce7622014-09-19 16:13:00 -0400[diff] [blame]396 // | Internal format | | D |S | Format | Type | Comp | SRGB | Texture supported | Renderable | Filterable |
397 // | | | | | | | type | | | | |
398 map.insert(InternalFormatInfoPair(GL_R16F, RGBAFormat(16, 0, 0, 0, 0, GL_RED, GL_HALF_FLOAT, GL_FLOAT, false, RequireESOrExtAndExt<3, &Extensions::textureHalfFloat, &Extensions::textureRG>, RequireESOrExtAndExt<3, &Extensions::textureHalfFloat, &Extensions::textureRG>, RequireExt<&Extensions::textureHalfFloatLinear>)));
399 map.insert(InternalFormatInfoPair(GL_RG16F, RGBAFormat(16, 16, 0, 0, 0, GL_RG, GL_HALF_FLOAT, GL_FLOAT, false, RequireESOrExtAndExt<3, &Extensions::textureHalfFloat, &Extensions::textureRG>, RequireESOrExtAndExt<3, &Extensions::textureHalfFloat, &Extensions::textureRG>, RequireExt<&Extensions::textureHalfFloatLinear>)));
400 map.insert(InternalFormatInfoPair(GL_RGB16F, RGBAFormat(16, 16, 16, 0, 0, GL_RGB, GL_HALF_FLOAT, GL_FLOAT, false, RequireESOrExt<3, &Extensions::textureHalfFloat>, RequireESOrExt<3, &Extensions::textureHalfFloat>, RequireExt<&Extensions::textureHalfFloatLinear>)));
401 map.insert(InternalFormatInfoPair(GL_RGBA16F, RGBAFormat(16, 16, 16, 16, 0, GL_RGBA, GL_HALF_FLOAT, GL_FLOAT, false, RequireESOrExt<3, &Extensions::textureHalfFloat>, RequireESOrExt<3, &Extensions::textureHalfFloat>, RequireExt<&Extensions::textureHalfFloatLinear>)));
402 map.insert(InternalFormatInfoPair(GL_R32F, RGBAFormat(32, 0, 0, 0, 0, GL_RED, GL_FLOAT, GL_FLOAT, false, RequireESOrExtAndExt<3, &Extensions::textureFloat, &Extensions::textureRG>, RequireESOrExtAndExt<3, &Extensions::textureFloat, &Extensions::textureRG>, RequireExt<&Extensions::textureFloatLinear> )));
403 map.insert(InternalFormatInfoPair(GL_RG32F, RGBAFormat(32, 32, 0, 0, 0, GL_RG, GL_FLOAT, GL_FLOAT, false, RequireESOrExtAndExt<3, &Extensions::textureFloat, &Extensions::textureRG>, RequireESOrExtAndExt<3, &Extensions::textureFloat, &Extensions::textureRG>, RequireExt<&Extensions::textureFloatLinear> )));
404 map.insert(InternalFormatInfoPair(GL_RGB32F, RGBAFormat(32, 32, 32, 0, 0, GL_RGB, GL_FLOAT, GL_FLOAT, false, RequireESOrExt<3, &Extensions::textureFloat>, RequireESOrExt<3, &Extensions::textureFloat>, RequireExt<&Extensions::textureFloatLinear> )));
405 map.insert(InternalFormatInfoPair(GL_RGBA32F, RGBAFormat(32, 32, 32, 32, 0, GL_RGBA, GL_FLOAT, GL_FLOAT, false, RequireESOrExt<3, &Extensions::textureFloat>, RequireESOrExt<3, &Extensions::textureFloat>, RequireExt<&Extensions::textureFloatLinear> )));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]406
407 // Depth stencil formats
Geoff Langabce7622014-09-19 16:13:00 -0400[diff] [blame]408 // | Internal format | | D |S | X | Format | Type | Component type | Supported | Renderable | Filterable |
409 map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT16, DepthStencilFormat(16, 0, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, GL_UNSIGNED_NORMALIZED, RequireES<2>, RequireES<2>, RequireESOrExt<3, &Extensions::depthTextures>)));
410 map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT24, DepthStencilFormat(24, 0, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, GL_UNSIGNED_NORMALIZED, RequireES<3>, RequireES<3>, RequireESOrExt<3, &Extensions::depthTextures>)));
411 map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT32F, DepthStencilFormat(32, 0, 0, GL_DEPTH_COMPONENT, GL_FLOAT, GL_FLOAT, RequireES<3>, RequireES<3>, RequireESOrExt<3, &Extensions::depthTextures>)));
412 map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT32_OES, DepthStencilFormat(32, 0, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, GL_UNSIGNED_NORMALIZED, RequireExt<&Extensions::depthTextures>, RequireExt<&Extensions::depthTextures>, AlwaysSupported )));
413 map.insert(InternalFormatInfoPair(GL_DEPTH24_STENCIL8, DepthStencilFormat(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 )));
414 map.insert(InternalFormatInfoPair(GL_DEPTH32F_STENCIL8, DepthStencilFormat(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]415 // STENCIL_INDEX8 is special-cased, see around the bottom of the list.
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]416
417 // Luminance alpha formats
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]418 // | Internal format | | L | A | Format | Type | Component type | Supported | Renderable | Filterable |
Geoff Langabce7622014-09-19 16:13:00 -0400[diff] [blame]419 map.insert(InternalFormatInfoPair(GL_ALPHA8_EXT, LUMAFormat( 0, 8, GL_ALPHA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireExt<&Extensions::textureStorage>, NeverSupported, AlwaysSupported)));
420 map.insert(InternalFormatInfoPair(GL_LUMINANCE8_EXT, LUMAFormat( 8, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireExt<&Extensions::textureStorage>, NeverSupported, AlwaysSupported)));
421 map.insert(InternalFormatInfoPair(GL_ALPHA32F_EXT, LUMAFormat( 0, 32, GL_ALPHA, GL_FLOAT, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureFloat>, NeverSupported, AlwaysSupported)));
422 map.insert(InternalFormatInfoPair(GL_LUMINANCE32F_EXT, LUMAFormat(32, 0, GL_LUMINANCE, GL_FLOAT, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureFloat>, NeverSupported, AlwaysSupported)));
423 map.insert(InternalFormatInfoPair(GL_ALPHA16F_EXT, LUMAFormat( 0, 16, GL_ALPHA, GL_HALF_FLOAT, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureHalfFloat>, NeverSupported, AlwaysSupported)));
424 map.insert(InternalFormatInfoPair(GL_LUMINANCE16F_EXT, LUMAFormat(16, 0, GL_LUMINANCE, GL_HALF_FLOAT, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureHalfFloat>, NeverSupported, AlwaysSupported)));
425 map.insert(InternalFormatInfoPair(GL_LUMINANCE8_ALPHA8_EXT, LUMAFormat( 8, 8, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireExt<&Extensions::textureStorage>, NeverSupported, AlwaysSupported)));
426 map.insert(InternalFormatInfoPair(GL_LUMINANCE_ALPHA32F_EXT, LUMAFormat(32, 32, GL_LUMINANCE_ALPHA, GL_FLOAT, GL_FLOAT, RequireExtAndExt<&Extensions::textureStorage, &Extensions::textureFloat>, NeverSupported, AlwaysSupported)));
427 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]428
429 // Unsized formats
Geoff Langabce7622014-09-19 16:13:00 -0400[diff] [blame]430 // | Internal format | | Format | Supported | Renderable | Filterable |
431 map.insert(InternalFormatInfoPair(GL_ALPHA, UnsizedFormat(GL_ALPHA, RequireES<2>, NeverSupported, AlwaysSupported)));
432 map.insert(InternalFormatInfoPair(GL_LUMINANCE, UnsizedFormat(GL_LUMINANCE, RequireES<2>, NeverSupported, AlwaysSupported)));
433 map.insert(InternalFormatInfoPair(GL_LUMINANCE_ALPHA, UnsizedFormat(GL_LUMINANCE_ALPHA, RequireES<2>, NeverSupported, AlwaysSupported)));
434 map.insert(InternalFormatInfoPair(GL_RED, UnsizedFormat(GL_RED, RequireESOrExt<3, &Extensions::textureRG>, NeverSupported, AlwaysSupported)));
435 map.insert(InternalFormatInfoPair(GL_RG, UnsizedFormat(GL_RG, RequireESOrExt<3, &Extensions::textureRG>, NeverSupported, AlwaysSupported)));
436 map.insert(InternalFormatInfoPair(GL_RGB, UnsizedFormat(GL_RGB, RequireES<2>, RequireES<2>, AlwaysSupported)));
437 map.insert(InternalFormatInfoPair(GL_RGBA, UnsizedFormat(GL_RGBA, RequireES<2>, RequireES<2>, AlwaysSupported)));
438 map.insert(InternalFormatInfoPair(GL_RED_INTEGER, UnsizedFormat(GL_RED_INTEGER, RequireES<3>, NeverSupported, NeverSupported )));
439 map.insert(InternalFormatInfoPair(GL_RG_INTEGER, UnsizedFormat(GL_RG_INTEGER, RequireES<3>, NeverSupported, NeverSupported )));
440 map.insert(InternalFormatInfoPair(GL_RGB_INTEGER, UnsizedFormat(GL_RGB_INTEGER, RequireES<3>, NeverSupported, NeverSupported )));
441 map.insert(InternalFormatInfoPair(GL_RGBA_INTEGER, UnsizedFormat(GL_RGBA_INTEGER, RequireES<3>, NeverSupported, NeverSupported )));
442 map.insert(InternalFormatInfoPair(GL_BGRA_EXT, UnsizedFormat(GL_BGRA_EXT, RequireExt<&Extensions::textureFormatBGRA8888>, RequireExt<&Extensions::textureFormatBGRA8888>, AlwaysSupported)));
443 map.insert(InternalFormatInfoPair(GL_DEPTH_COMPONENT, UnsizedFormat(GL_DEPTH_COMPONENT, RequireES<2>, RequireES<2>, AlwaysSupported)));
444 map.insert(InternalFormatInfoPair(GL_DEPTH_STENCIL, UnsizedFormat(GL_DEPTH_STENCIL, RequireESOrExt<3, &Extensions::packedDepthStencil>, RequireESOrExt<3, &Extensions::packedDepthStencil>, AlwaysSupported)));
445 map.insert(InternalFormatInfoPair(GL_SRGB_EXT, UnsizedFormat(GL_RGB, RequireESOrExt<3, &Extensions::sRGB>, NeverSupported, AlwaysSupported)));
446 map.insert(InternalFormatInfoPair(GL_SRGB_ALPHA_EXT, UnsizedFormat(GL_RGBA, RequireESOrExt<3, &Extensions::sRGB>, RequireESOrExt<3, &Extensions::sRGB>, AlwaysSupported)));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]447
448 // Compressed formats, From ES 3.0.1 spec, table 3.16
Geoff Lang0d8b7242015-09-09 14:56:53 -0400[diff] [blame]449 // | Internal format | |W |H | BS |CC| Format | Type | SRGB | Supported | Renderable | Filterable |
450 map.insert(InternalFormatInfoPair(GL_COMPRESSED_R11_EAC, CompressedFormat(4, 4, 64, 1, GL_COMPRESSED_R11_EAC, GL_UNSIGNED_BYTE, false, RequireES<3>, NeverSupported, AlwaysSupported)));
451 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)));
452 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RG11_EAC, CompressedFormat(4, 4, 128, 2, GL_COMPRESSED_RG11_EAC, GL_UNSIGNED_BYTE, false, RequireES<3>, NeverSupported, AlwaysSupported)));
453 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)));
454 map.insert(InternalFormatInfoPair(GL_COMPRESSED_RGB8_ETC2, CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_RGB8_ETC2, GL_UNSIGNED_BYTE, false, RequireES<3>, NeverSupported, AlwaysSupported)));
455 map.insert(InternalFormatInfoPair(GL_COMPRESSED_SRGB8_ETC2, CompressedFormat(4, 4, 64, 3, GL_COMPRESSED_SRGB8_ETC2, GL_UNSIGNED_BYTE, true, RequireES<3>, NeverSupported, AlwaysSupported)));
456 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)));
457 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)));
458 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)));
459 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]460
461 // From GL_EXT_texture_compression_dxt1
Zhenyao Mo1170e472015-09-11 21:48:20 +0000[diff] [blame]462 // | Internal format | |W |H | BS |CC| Format | Type | SRGB | Supported | Renderable | Filterable |
463 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)));
464 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]465
466 // From GL_ANGLE_texture_compression_dxt3
Zhenyao Mo1170e472015-09-11 21:48:20 +0000[diff] [blame]467 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]468
469 // From GL_ANGLE_texture_compression_dxt5
Zhenyao Mo1170e472015-09-11 21:48:20 +0000[diff] [blame]470 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)));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]471
Corentin Walleze0902642014-11-04 12:32:15 -0800[diff] [blame]472 // For STENCIL_INDEX8 we chose a normalized component type for the following reasons:
473 // - Multisampled buffer are disallowed for non-normalized integer component types and we want to support it for STENCIL_INDEX8
474 // - All other stencil formats (all depth-stencil) are either float or normalized
475 // - It affects only validation of internalformat in RenderbufferStorageMultisample.
476 // | Internal format | |D |S |X | Format | Type | Component type | Supported | Renderable | Filterable |
477 map.insert(InternalFormatInfoPair(GL_STENCIL_INDEX8, DepthStencilFormat(0, 8, 0, GL_DEPTH_STENCIL, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireES<2>, RequireES<2>, NeverSupported)));
Geoff Lang9bbad182015-09-04 11:07:29 -0400[diff] [blame]478 // clang-format on
Corentin Walleze0902642014-11-04 12:32:15 -0800[diff] [blame]479
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]480 return map;
481}
482
Geoff Lange4a492b2014-06-19 14:14:41 -0400[diff] [blame]483static const InternalFormatInfoMap &GetInternalFormatMap()
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]484{
Geoff Lange4a492b2014-06-19 14:14:41 -0400[diff] [blame]485 static const InternalFormatInfoMap formatMap = BuildInternalFormatInfoMap();
486 return formatMap;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]487}
488
Geoff Lange4a492b2014-06-19 14:14:41 -0400[diff] [blame]489static FormatSet BuildAllSizedInternalFormatSet()
Geoff Langcec35902014-04-16 10:52:36 -0400[diff] [blame]490{
491 FormatSet result;
492
Geoff Lange4a492b2014-06-19 14:14:41 -0400[diff] [blame]493 const InternalFormatInfoMap &formats = GetInternalFormatMap();
Geoff Langcec35902014-04-16 10:52:36 -0400[diff] [blame]494 for (InternalFormatInfoMap::const_iterator i = formats.begin(); i != formats.end(); i++)
495 {
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]496 if (i->second.pixelBytes > 0)
Geoff Langcec35902014-04-16 10:52:36 -0400[diff] [blame]497 {
498 result.insert(i->first);
499 }
500 }
501
502 return result;
503}
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]504
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]505const Type &GetTypeInfo(GLenum type)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]506{
Olli Etuaho31f8f4f2015-03-25 16:03:57 +0200[diff] [blame]507 switch (type)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]508 {
Olli Etuaho31f8f4f2015-03-25 16:03:57 +0200[diff] [blame]509 case GL_UNSIGNED_BYTE:
510 case GL_BYTE:
511 {
512 static const Type info = GenTypeInfo(1, false);
513 return info;
514 }
515 case GL_UNSIGNED_SHORT:
516 case GL_SHORT:
517 case GL_HALF_FLOAT:
518 case GL_HALF_FLOAT_OES:
519 {
520 static const Type info = GenTypeInfo(2, false);
521 return info;
522 }
523 case GL_UNSIGNED_INT:
524 case GL_INT:
525 case GL_FLOAT:
526 {
527 static const Type info = GenTypeInfo(4, false);
528 return info;
529 }
530 case GL_UNSIGNED_SHORT_5_6_5:
531 case GL_UNSIGNED_SHORT_4_4_4_4:
532 case GL_UNSIGNED_SHORT_5_5_5_1:
533 case GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT:
534 case GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT:
535 {
536 static const Type info = GenTypeInfo(2, true);
537 return info;
538 }
539 case GL_UNSIGNED_INT_2_10_10_10_REV:
540 case GL_UNSIGNED_INT_24_8:
541 case GL_UNSIGNED_INT_10F_11F_11F_REV:
542 case GL_UNSIGNED_INT_5_9_9_9_REV:
543 {
544 ASSERT(GL_UNSIGNED_INT_24_8_OES == GL_UNSIGNED_INT_24_8);
545 static const Type info = GenTypeInfo(4, true);
546 return info;
547 }
548 case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
549 {
550 static const Type info = GenTypeInfo(8, true);
551 return info;
552 }
553 default:
554 {
555 static const Type defaultInfo;
556 return defaultInfo;
557 }
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]558 }
559}
560
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]561const InternalFormat &GetInternalFormatInfo(GLenum internalFormat)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]562{
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]563 const InternalFormatInfoMap &formatMap = GetInternalFormatMap();
564 InternalFormatInfoMap::const_iterator iter = formatMap.find(internalFormat);
565 if (iter != formatMap.end())
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]566 {
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]567 return iter->second;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]568 }
569 else
570 {
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]571 static const InternalFormat defaultInternalFormat;
572 return defaultInternalFormat;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]573 }
574}
575
Minmin Gongb8aee3b2015-01-27 14:42:36 -0800[diff] [blame]576GLuint InternalFormat::computeRowPitch(GLenum formatType, GLsizei width, GLint alignment, GLint rowLength) const
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]577{
578 ASSERT(alignment > 0 && isPow2(alignment));
Minmin Gongb8aee3b2015-01-27 14:42:36 -0800[diff] [blame]579 GLuint rowBytes;
580 if (rowLength > 0)
581 {
582 ASSERT(!compressed);
583 rowBytes = pixelBytes * rowLength;
584 }
585 else
586 {
587 rowBytes = computeBlockSize(formatType, width, 1);
588 }
589 return rx::roundUp(rowBytes, static_cast<GLuint>(alignment));
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]590}
591
Minmin Gongadff67b2015-10-14 10:34:45 -0400[diff] [blame^]592GLuint InternalFormat::computeDepthPitch(GLenum formatType,
593 GLsizei width,
594 GLsizei height,
595 GLint alignment,
596 GLint rowLength,
597 GLint imageHeight) const
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]598{
Minmin Gongadff67b2015-10-14 10:34:45 -0400[diff] [blame^]599 GLuint rows;
600 if (imageHeight > 0)
601 {
602 rows = imageHeight;
603 }
604 else
605 {
606 rows = height;
607 }
608 return computeRowPitch(formatType, width, alignment, rowLength) * rows;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]609}
610
Austin Kinross3ae64652015-01-26 15:51:39 -0800[diff] [blame]611GLuint InternalFormat::computeBlockSize(GLenum formatType, GLsizei width, GLsizei height) const
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]612{
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]613 if (compressed)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]614 {
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]615 GLsizei numBlocksWide = (width + compressedBlockWidth - 1) / compressedBlockWidth;
616 GLsizei numBlocksHight = (height + compressedBlockHeight - 1) / compressedBlockHeight;
617 return (pixelBytes * numBlocksWide * numBlocksHight);
618 }
619 else
620 {
Austin Kinross3ae64652015-01-26 15:51:39 -0800[diff] [blame]621 const Type &typeInfo = GetTypeInfo(formatType);
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]622 if (typeInfo.specialInterpretation)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]623 {
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]624 return typeInfo.bytes * width * height;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]625 }
626 else
627 {
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]628 return componentCount * typeInfo.bytes * width * height;
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]629 }
630 }
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]631}
632
Minmin Gongadff67b2015-10-14 10:34:45 -0400[diff] [blame^]633GLuint InternalFormat::computeSkipPixels(GLint rowPitch,
634 GLint depthPitch,
635 GLint skipImages,
636 GLint skipRows,
637 GLint skipPixels) const
638{
639 return skipImages * depthPitch + skipRows * rowPitch + skipPixels * pixelBytes;
640}
641
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]642GLenum GetSizedInternalFormat(GLenum internalFormat, GLenum type)
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]643{
Geoff Lang5d601382014-07-22 15:14:06 -0400[diff] [blame]644 const InternalFormat& formatInfo = GetInternalFormatInfo(internalFormat);
Geoff Lang051dbc72015-01-05 15:48:58 -0500[diff] [blame]645 if (formatInfo.pixelBytes > 0)
646 {
647 return internalFormat;
648 }
649 else
650 {
651 static const FormatMap formatMap = BuildFormatMap();
652 FormatMap::const_iterator iter = formatMap.find(FormatTypePair(internalFormat, type));
653 if (iter != formatMap.end())
654 {
655 return iter->second;
656 }
657 else
658 {
659 return GL_NONE;
660 }
661 }
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]662}
663
Geoff Lange4a492b2014-06-19 14:14:41 -0400[diff] [blame]664const FormatSet &GetAllSizedInternalFormats()
Geoff Langcec35902014-04-16 10:52:36 -0400[diff] [blame]665{
Geoff Lange4a492b2014-06-19 14:14:41 -0400[diff] [blame]666 static FormatSet formatSet = BuildAllSizedInternalFormatSet();
Geoff Langcec35902014-04-16 10:52:36 -0400[diff] [blame]667 return formatSet;
668}
669
Jamie Madill09e2d932015-07-14 16:40:31 -0400[diff] [blame]670AttributeType GetAttributeType(GLenum enumValue)
671{
672 switch (enumValue)
673 {
674 case GL_FLOAT:
675 return ATTRIBUTE_FLOAT;
676 case GL_FLOAT_VEC2:
677 return ATTRIBUTE_VEC2;
678 case GL_FLOAT_VEC3:
679 return ATTRIBUTE_VEC3;
680 case GL_FLOAT_VEC4:
681 return ATTRIBUTE_VEC4;
682 case GL_INT:
683 return ATTRIBUTE_INT;
684 case GL_INT_VEC2:
685 return ATTRIBUTE_IVEC2;
686 case GL_INT_VEC3:
687 return ATTRIBUTE_IVEC3;
688 case GL_INT_VEC4:
689 return ATTRIBUTE_IVEC4;
690 case GL_UNSIGNED_INT:
691 return ATTRIBUTE_UINT;
692 case GL_UNSIGNED_INT_VEC2:
693 return ATTRIBUTE_UVEC2;
694 case GL_UNSIGNED_INT_VEC3:
695 return ATTRIBUTE_UVEC3;
696 case GL_UNSIGNED_INT_VEC4:
697 return ATTRIBUTE_UVEC4;
698 case GL_FLOAT_MAT2:
699 return ATTRIBUTE_MAT2;
700 case GL_FLOAT_MAT3:
701 return ATTRIBUTE_MAT3;
702 case GL_FLOAT_MAT4:
703 return ATTRIBUTE_MAT4;
704 case GL_FLOAT_MAT2x3:
705 return ATTRIBUTE_MAT2x3;
706 case GL_FLOAT_MAT2x4:
707 return ATTRIBUTE_MAT2x4;
708 case GL_FLOAT_MAT3x2:
709 return ATTRIBUTE_MAT3x2;
710 case GL_FLOAT_MAT3x4:
711 return ATTRIBUTE_MAT3x4;
712 case GL_FLOAT_MAT4x2:
713 return ATTRIBUTE_MAT4x2;
714 case GL_FLOAT_MAT4x3:
715 return ATTRIBUTE_MAT4x3;
716 default:
717 UNREACHABLE();
718 return ATTRIBUTE_FLOAT;
719 }
720}
721
Jamie Madilld3dfda22015-07-06 08:28:49 -0400[diff] [blame]722VertexFormatType GetVertexFormatType(GLenum type, GLboolean normalized, GLuint components, bool pureInteger)
723{
724 switch (type)
725 {
726 case GL_BYTE:
727 switch (components)
728 {
729 case 1:
730 if (pureInteger)
731 return VERTEX_FORMAT_SBYTE1_INT;
732 if (normalized)
733 return VERTEX_FORMAT_SBYTE1_NORM;
734 return VERTEX_FORMAT_SBYTE1;
735 case 2:
736 if (pureInteger)
737 return VERTEX_FORMAT_SBYTE2_INT;
738 if (normalized)
739 return VERTEX_FORMAT_SBYTE2_NORM;
740 return VERTEX_FORMAT_SBYTE2;
741 case 3:
742 if (pureInteger)
743 return VERTEX_FORMAT_SBYTE3_INT;
744 if (normalized)
745 return VERTEX_FORMAT_SBYTE3_NORM;
746 return VERTEX_FORMAT_SBYTE3;
747 case 4:
748 if (pureInteger)
749 return VERTEX_FORMAT_SBYTE4_INT;
750 if (normalized)
751 return VERTEX_FORMAT_SBYTE4_NORM;
752 return VERTEX_FORMAT_SBYTE4;
753 default:
754 UNREACHABLE();
755 break;
756 }
757 case GL_UNSIGNED_BYTE:
758 switch (components)
759 {
760 case 1:
761 if (pureInteger)
762 return VERTEX_FORMAT_UBYTE1_INT;
763 if (normalized)
764 return VERTEX_FORMAT_UBYTE1_NORM;
765 return VERTEX_FORMAT_UBYTE1;
766 case 2:
767 if (pureInteger)
768 return VERTEX_FORMAT_UBYTE2_INT;
769 if (normalized)
770 return VERTEX_FORMAT_UBYTE2_NORM;
771 return VERTEX_FORMAT_UBYTE2;
772 case 3:
773 if (pureInteger)
774 return VERTEX_FORMAT_UBYTE3_INT;
775 if (normalized)
776 return VERTEX_FORMAT_UBYTE3_NORM;
777 return VERTEX_FORMAT_UBYTE3;
778 case 4:
779 if (pureInteger)
780 return VERTEX_FORMAT_UBYTE4_INT;
781 if (normalized)
782 return VERTEX_FORMAT_UBYTE4_NORM;
783 return VERTEX_FORMAT_UBYTE4;
784 default:
785 UNREACHABLE();
786 break;
787 }
788 case GL_SHORT:
789 switch (components)
790 {
791 case 1:
792 if (pureInteger)
793 return VERTEX_FORMAT_SSHORT1_INT;
794 if (normalized)
795 return VERTEX_FORMAT_SSHORT1_NORM;
796 return VERTEX_FORMAT_SSHORT1;
797 case 2:
798 if (pureInteger)
799 return VERTEX_FORMAT_SSHORT2_INT;
800 if (normalized)
801 return VERTEX_FORMAT_SSHORT2_NORM;
802 return VERTEX_FORMAT_SSHORT2;
803 case 3:
804 if (pureInteger)
805 return VERTEX_FORMAT_SSHORT3_INT;
806 if (normalized)
807 return VERTEX_FORMAT_SSHORT3_NORM;
808 return VERTEX_FORMAT_SSHORT3;
809 case 4:
810 if (pureInteger)
811 return VERTEX_FORMAT_SSHORT4_INT;
812 if (normalized)
813 return VERTEX_FORMAT_SSHORT4_NORM;
814 return VERTEX_FORMAT_SSHORT4;
815 default:
816 UNREACHABLE();
817 break;
818 }
819 case GL_UNSIGNED_SHORT:
820 switch (components)
821 {
822 case 1:
823 if (pureInteger)
824 return VERTEX_FORMAT_USHORT1_INT;
825 if (normalized)
826 return VERTEX_FORMAT_USHORT1_NORM;
827 return VERTEX_FORMAT_USHORT1;
828 case 2:
829 if (pureInteger)
830 return VERTEX_FORMAT_USHORT2_INT;
831 if (normalized)
832 return VERTEX_FORMAT_USHORT2_NORM;
833 return VERTEX_FORMAT_USHORT2;
834 case 3:
835 if (pureInteger)
836 return VERTEX_FORMAT_USHORT3_INT;
837 if (normalized)
838 return VERTEX_FORMAT_USHORT3_NORM;
839 return VERTEX_FORMAT_USHORT3;
840 case 4:
841 if (pureInteger)
842 return VERTEX_FORMAT_USHORT4_INT;
843 if (normalized)
844 return VERTEX_FORMAT_USHORT4_NORM;
845 return VERTEX_FORMAT_USHORT4;
846 default:
847 UNREACHABLE();
848 break;
849 }
850 case GL_INT:
851 switch (components)
852 {
853 case 1:
854 if (pureInteger)
855 return VERTEX_FORMAT_SINT1_INT;
856 if (normalized)
857 return VERTEX_FORMAT_SINT1_NORM;
858 return VERTEX_FORMAT_SINT1;
859 case 2:
860 if (pureInteger)
861 return VERTEX_FORMAT_SINT2_INT;
862 if (normalized)
863 return VERTEX_FORMAT_SINT2_NORM;
864 return VERTEX_FORMAT_SINT2;
865 case 3:
866 if (pureInteger)
867 return VERTEX_FORMAT_SINT3_INT;
868 if (normalized)
869 return VERTEX_FORMAT_SINT3_NORM;
870 return VERTEX_FORMAT_SINT3;
871 case 4:
872 if (pureInteger)
873 return VERTEX_FORMAT_SINT4_INT;
874 if (normalized)
875 return VERTEX_FORMAT_SINT4_NORM;
876 return VERTEX_FORMAT_SINT4;
877 default:
878 UNREACHABLE();
879 break;
880 }
881 case GL_UNSIGNED_INT:
882 switch (components)
883 {
884 case 1:
885 if (pureInteger)
886 return VERTEX_FORMAT_UINT1_INT;
887 if (normalized)
888 return VERTEX_FORMAT_UINT1_NORM;
889 return VERTEX_FORMAT_UINT1;
890 case 2:
891 if (pureInteger)
892 return VERTEX_FORMAT_UINT2_INT;
893 if (normalized)
894 return VERTEX_FORMAT_UINT2_NORM;
895 return VERTEX_FORMAT_UINT2;
896 case 3:
897 if (pureInteger)
898 return VERTEX_FORMAT_UINT3_INT;
899 if (normalized)
900 return VERTEX_FORMAT_UINT3_NORM;
901 return VERTEX_FORMAT_UINT3;
902 case 4:
903 if (pureInteger)
904 return VERTEX_FORMAT_UINT4_INT;
905 if (normalized)
906 return VERTEX_FORMAT_UINT4_NORM;
907 return VERTEX_FORMAT_UINT4;
908 default:
909 UNREACHABLE();
910 break;
911 }
912 case GL_FLOAT:
913 switch (components)
914 {
915 case 1:
916 return VERTEX_FORMAT_FLOAT1;
917 case 2:
918 return VERTEX_FORMAT_FLOAT2;
919 case 3:
920 return VERTEX_FORMAT_FLOAT3;
921 case 4:
922 return VERTEX_FORMAT_FLOAT4;
923 default:
924 UNREACHABLE();
925 break;
926 }
927 case GL_HALF_FLOAT:
928 switch (components)
929 {
930 case 1:
931 return VERTEX_FORMAT_HALF1;
932 case 2:
933 return VERTEX_FORMAT_HALF2;
934 case 3:
935 return VERTEX_FORMAT_HALF3;
936 case 4:
937 return VERTEX_FORMAT_HALF4;
938 default:
939 UNREACHABLE();
940 break;
941 }
942 case GL_FIXED:
943 switch (components)
944 {
945 case 1:
946 return VERTEX_FORMAT_FIXED1;
947 case 2:
948 return VERTEX_FORMAT_FIXED2;
949 case 3:
950 return VERTEX_FORMAT_FIXED3;
951 case 4:
952 return VERTEX_FORMAT_FIXED4;
953 default:
954 UNREACHABLE();
955 break;
956 }
957 case GL_INT_2_10_10_10_REV:
958 if (pureInteger)
959 return VERTEX_FORMAT_SINT210_INT;
960 if (normalized)
961 return VERTEX_FORMAT_SINT210_NORM;
962 return VERTEX_FORMAT_SINT210;
963 case GL_UNSIGNED_INT_2_10_10_10_REV:
964 if (pureInteger)
965 return VERTEX_FORMAT_UINT210_INT;
966 if (normalized)
967 return VERTEX_FORMAT_UINT210_NORM;
968 return VERTEX_FORMAT_UINT210;
969 default:
970 UNREACHABLE();
971 break;
972 }
973 return VERTEX_FORMAT_UBYTE1;
974}
975
976VertexFormatType GetVertexFormatType(const VertexAttribute &attrib)
977{
978 return GetVertexFormatType(attrib.type, attrib.normalized, attrib.size, attrib.pureInteger);
979}
980
981VertexFormatType GetVertexFormatType(const VertexAttribute &attrib, GLenum currentValueType)
982{
983 if (!attrib.enabled)
984 {
985 return GetVertexFormatType(currentValueType, GL_FALSE, 4, (currentValueType != GL_FLOAT));
986 }
987 return GetVertexFormatType(attrib);
988}
989
990const VertexFormat &GetVertexFormatFromType(VertexFormatType vertexFormatType)
991{
992 switch (vertexFormatType)
993 {
994 case VERTEX_FORMAT_SBYTE1:
995 {
996 static const VertexFormat format(GL_BYTE, GL_FALSE, 1, false);
997 return format;
998 }
999 case VERTEX_FORMAT_SBYTE1_NORM:
1000 {
1001 static const VertexFormat format(GL_BYTE, GL_TRUE, 1, false);
1002 return format;
1003 }
1004 case VERTEX_FORMAT_SBYTE2:
1005 {
1006 static const VertexFormat format(GL_BYTE, GL_FALSE, 2, false);
1007 return format;
1008 }
1009 case VERTEX_FORMAT_SBYTE2_NORM:
1010 {
1011 static const VertexFormat format(GL_BYTE, GL_TRUE, 2, false);
1012 return format;
1013 }
1014 case VERTEX_FORMAT_SBYTE3:
1015 {
1016 static const VertexFormat format(GL_BYTE, GL_FALSE, 3, false);
1017 return format;
1018 }
1019 case VERTEX_FORMAT_SBYTE3_NORM:
1020 {
1021 static const VertexFormat format(GL_BYTE, GL_TRUE, 3, false);
1022 return format;
1023 }
1024 case VERTEX_FORMAT_SBYTE4:
1025 {
1026 static const VertexFormat format(GL_BYTE, GL_FALSE, 4, false);
1027 return format;
1028 }
1029 case VERTEX_FORMAT_SBYTE4_NORM:
1030 {
1031 static const VertexFormat format(GL_BYTE, GL_TRUE, 4, false);
1032 return format;
1033 }
1034 case VERTEX_FORMAT_UBYTE1:
1035 {
1036 static const VertexFormat format(GL_UNSIGNED_BYTE, GL_FALSE, 1, false);
1037 return format;
1038 }
1039 case VERTEX_FORMAT_UBYTE1_NORM:
1040 {
1041 static const VertexFormat format(GL_UNSIGNED_BYTE, GL_TRUE, 1, false);
1042 return format;
1043 }
1044 case VERTEX_FORMAT_UBYTE2:
1045 {
1046 static const VertexFormat format(GL_UNSIGNED_BYTE, GL_FALSE, 2, false);
1047 return format;
1048 }
1049 case VERTEX_FORMAT_UBYTE2_NORM:
1050 {
1051 static const VertexFormat format(GL_UNSIGNED_BYTE, GL_TRUE, 2, false);
1052 return format;
1053 }
1054 case VERTEX_FORMAT_UBYTE3:
1055 {
1056 static const VertexFormat format(GL_UNSIGNED_BYTE, GL_FALSE, 3, false);
1057 return format;
1058 }
1059 case VERTEX_FORMAT_UBYTE3_NORM:
1060 {
1061 static const VertexFormat format(GL_UNSIGNED_BYTE, GL_TRUE, 3, false);
1062 return format;
1063 }
1064 case VERTEX_FORMAT_UBYTE4:
1065 {
1066 static const VertexFormat format(GL_UNSIGNED_BYTE, GL_FALSE, 4, false);
1067 return format;
1068 }
1069 case VERTEX_FORMAT_UBYTE4_NORM:
1070 {
1071 static const VertexFormat format(GL_UNSIGNED_BYTE, GL_TRUE, 4, false);
1072 return format;
1073 }
1074 case VERTEX_FORMAT_SSHORT1:
1075 {
1076 static const VertexFormat format(GL_SHORT, GL_FALSE, 1, false);
1077 return format;
1078 }
1079 case VERTEX_FORMAT_SSHORT1_NORM:
1080 {
1081 static const VertexFormat format(GL_SHORT, GL_TRUE, 1, false);
1082 return format;
1083 }
1084 case VERTEX_FORMAT_SSHORT2:
1085 {
1086 static const VertexFormat format(GL_SHORT, GL_FALSE, 2, false);
1087 return format;
1088 }
1089 case VERTEX_FORMAT_SSHORT2_NORM:
1090 {
1091 static const VertexFormat format(GL_SHORT, GL_TRUE, 2, false);
1092 return format;
1093 }
1094 case VERTEX_FORMAT_SSHORT3:
1095 {
1096 static const VertexFormat format(GL_SHORT, GL_FALSE, 3, false);
1097 return format;
1098 }
1099 case VERTEX_FORMAT_SSHORT3_NORM:
1100 {
1101 static const VertexFormat format(GL_SHORT, GL_TRUE, 3, false);
1102 return format;
1103 }
1104 case VERTEX_FORMAT_SSHORT4:
1105 {
1106 static const VertexFormat format(GL_SHORT, GL_FALSE, 4, false);
1107 return format;
1108 }
1109 case VERTEX_FORMAT_SSHORT4_NORM:
1110 {
1111 static const VertexFormat format(GL_SHORT, GL_TRUE, 4, false);
1112 return format;
1113 }
1114 case VERTEX_FORMAT_USHORT1:
1115 {
1116 static const VertexFormat format(GL_UNSIGNED_SHORT, GL_FALSE, 1, false);
1117 return format;
1118 }
1119 case VERTEX_FORMAT_USHORT1_NORM:
1120 {
1121 static const VertexFormat format(GL_UNSIGNED_SHORT, GL_TRUE, 1, false);
1122 return format;
1123 }
1124 case VERTEX_FORMAT_USHORT2:
1125 {
1126 static const VertexFormat format(GL_UNSIGNED_SHORT, GL_FALSE, 2, false);
1127 return format;
1128 }
1129 case VERTEX_FORMAT_USHORT2_NORM:
1130 {
1131 static const VertexFormat format(GL_UNSIGNED_SHORT, GL_TRUE, 2, false);
1132 return format;
1133 }
1134 case VERTEX_FORMAT_USHORT3:
1135 {
1136 static const VertexFormat format(GL_UNSIGNED_SHORT, GL_FALSE, 3, false);
1137 return format;
1138 }
1139 case VERTEX_FORMAT_USHORT3_NORM:
1140 {
1141 static const VertexFormat format(GL_UNSIGNED_SHORT, GL_TRUE, 3, false);
1142 return format;
1143 }
1144 case VERTEX_FORMAT_USHORT4:
1145 {
1146 static const VertexFormat format(GL_UNSIGNED_SHORT, GL_FALSE, 4, false);
1147 return format;
1148 }
1149 case VERTEX_FORMAT_USHORT4_NORM:
1150 {
1151 static const VertexFormat format(GL_UNSIGNED_SHORT, GL_TRUE, 4, false);
1152 return format;
1153 }
1154 case VERTEX_FORMAT_SINT1:
1155 {
1156 static const VertexFormat format(GL_INT, GL_FALSE, 1, false);
1157 return format;
1158 }
1159 case VERTEX_FORMAT_SINT1_NORM:
1160 {
1161 static const VertexFormat format(GL_INT, GL_TRUE, 1, false);
1162 return format;
1163 }
1164 case VERTEX_FORMAT_SINT2:
1165 {
1166 static const VertexFormat format(GL_INT, GL_FALSE, 2, false);
1167 return format;
1168 }
1169 case VERTEX_FORMAT_SINT2_NORM:
1170 {
1171 static const VertexFormat format(GL_INT, GL_TRUE, 2, false);
1172 return format;
1173 }
1174 case VERTEX_FORMAT_SINT3:
1175 {
1176 static const VertexFormat format(GL_INT, GL_FALSE, 3, false);
1177 return format;
1178 }
1179 case VERTEX_FORMAT_SINT3_NORM:
1180 {
1181 static const VertexFormat format(GL_INT, GL_TRUE, 3, false);
1182 return format;
1183 }
1184 case VERTEX_FORMAT_SINT4:
1185 {
1186 static const VertexFormat format(GL_INT, GL_FALSE, 4, false);
1187 return format;
1188 }
1189 case VERTEX_FORMAT_SINT4_NORM:
1190 {
1191 static const VertexFormat format(GL_INT, GL_TRUE, 4, false);
1192 return format;
1193 }
1194 case VERTEX_FORMAT_UINT1:
1195 {
1196 static const VertexFormat format(GL_UNSIGNED_INT, GL_FALSE, 1, false);
1197 return format;
1198 }
1199 case VERTEX_FORMAT_UINT1_NORM:
1200 {
1201 static const VertexFormat format(GL_UNSIGNED_INT, GL_TRUE, 1, false);
1202 return format;
1203 }
1204 case VERTEX_FORMAT_UINT2:
1205 {
1206 static const VertexFormat format(GL_UNSIGNED_INT, GL_FALSE, 2, false);
1207 return format;
1208 }
1209 case VERTEX_FORMAT_UINT2_NORM:
1210 {
1211 static const VertexFormat format(GL_UNSIGNED_INT, GL_TRUE, 2, false);
1212 return format;
1213 }
1214 case VERTEX_FORMAT_UINT3:
1215 {
1216 static const VertexFormat format(GL_UNSIGNED_INT, GL_FALSE, 3, false);
1217 return format;
1218 }
1219 case VERTEX_FORMAT_UINT3_NORM:
1220 {
1221 static const VertexFormat format(GL_UNSIGNED_INT, GL_TRUE, 3, false);
1222 return format;
1223 }
1224 case VERTEX_FORMAT_UINT4:
1225 {
1226 static const VertexFormat format(GL_UNSIGNED_INT, GL_FALSE, 4, false);
1227 return format;
1228 }
1229 case VERTEX_FORMAT_UINT4_NORM:
1230 {
1231 static const VertexFormat format(GL_UNSIGNED_INT, GL_TRUE, 4, false);
1232 return format;
1233 }
1234 case VERTEX_FORMAT_SBYTE1_INT:
1235 {
1236 static const VertexFormat format(GL_BYTE, GL_FALSE, 1, true);
1237 return format;
1238 }
1239 case VERTEX_FORMAT_SBYTE2_INT:
1240 {
1241 static const VertexFormat format(GL_BYTE, GL_FALSE, 2, true);
1242 return format;
1243 }
1244 case VERTEX_FORMAT_SBYTE3_INT:
1245 {
1246 static const VertexFormat format(GL_BYTE, GL_FALSE, 3, true);
1247 return format;
1248 }
1249 case VERTEX_FORMAT_SBYTE4_INT:
1250 {
1251 static const VertexFormat format(GL_BYTE, GL_FALSE, 4, true);
1252 return format;
1253 }
1254 case VERTEX_FORMAT_UBYTE1_INT:
1255 {
1256 static const VertexFormat format(GL_UNSIGNED_BYTE, GL_FALSE, 1, true);
1257 return format;
1258 }
1259 case VERTEX_FORMAT_UBYTE2_INT:
1260 {
1261 static const VertexFormat format(GL_UNSIGNED_BYTE, GL_FALSE, 2, true);
1262 return format;
1263 }
1264 case VERTEX_FORMAT_UBYTE3_INT:
1265 {
1266 static const VertexFormat format(GL_UNSIGNED_BYTE, GL_FALSE, 3, true);
1267 return format;
1268 }
1269 case VERTEX_FORMAT_UBYTE4_INT:
1270 {
1271 static const VertexFormat format(GL_UNSIGNED_BYTE, GL_FALSE, 4, true);
1272 return format;
1273 }
1274 case VERTEX_FORMAT_SSHORT1_INT:
1275 {
1276 static const VertexFormat format(GL_SHORT, GL_FALSE, 1, true);
1277 return format;
1278 }
1279 case VERTEX_FORMAT_SSHORT2_INT:
1280 {
1281 static const VertexFormat format(GL_SHORT, GL_FALSE, 2, true);
1282 return format;
1283 }
1284 case VERTEX_FORMAT_SSHORT3_INT:
1285 {
1286 static const VertexFormat format(GL_SHORT, GL_FALSE, 3, true);
1287 return format;
1288 }
1289 case VERTEX_FORMAT_SSHORT4_INT:
1290 {
1291 static const VertexFormat format(GL_SHORT, GL_FALSE, 4, true);
1292 return format;
1293 }
1294 case VERTEX_FORMAT_USHORT1_INT:
1295 {
1296 static const VertexFormat format(GL_UNSIGNED_SHORT, GL_FALSE, 1, true);
1297 return format;
1298 }
1299 case VERTEX_FORMAT_USHORT2_INT:
1300 {
1301 static const VertexFormat format(GL_UNSIGNED_SHORT, GL_FALSE, 2, true);
1302 return format;
1303 }
1304 case VERTEX_FORMAT_USHORT3_INT:
1305 {
1306 static const VertexFormat format(GL_UNSIGNED_SHORT, GL_FALSE, 3, true);
1307 return format;
1308 }
1309 case VERTEX_FORMAT_USHORT4_INT:
1310 {
1311 static const VertexFormat format(GL_UNSIGNED_SHORT, GL_FALSE, 4, true);
1312 return format;
1313 }
1314 case VERTEX_FORMAT_SINT1_INT:
1315 {
1316 static const VertexFormat format(GL_INT, GL_FALSE, 1, true);
1317 return format;
1318 }
1319 case VERTEX_FORMAT_SINT2_INT:
1320 {
1321 static const VertexFormat format(GL_INT, GL_FALSE, 2, true);
1322 return format;
1323 }
1324 case VERTEX_FORMAT_SINT3_INT:
1325 {
1326 static const VertexFormat format(GL_INT, GL_FALSE, 3, true);
1327 return format;
1328 }
1329 case VERTEX_FORMAT_SINT4_INT:
1330 {
1331 static const VertexFormat format(GL_INT, GL_FALSE, 4, true);
1332 return format;
1333 }
1334 case VERTEX_FORMAT_UINT1_INT:
1335 {
1336 static const VertexFormat format(GL_UNSIGNED_INT, GL_FALSE, 1, true);
1337 return format;
1338 }
1339 case VERTEX_FORMAT_UINT2_INT:
1340 {
1341 static const VertexFormat format(GL_UNSIGNED_INT, GL_FALSE, 2, true);
1342 return format;
1343 }
1344 case VERTEX_FORMAT_UINT3_INT:
1345 {
1346 static const VertexFormat format(GL_UNSIGNED_INT, GL_FALSE, 3, true);
1347 return format;
1348 }
1349 case VERTEX_FORMAT_UINT4_INT:
1350 {
1351 static const VertexFormat format(GL_UNSIGNED_INT, GL_FALSE, 4, true);
1352 return format;
1353 }
1354 case VERTEX_FORMAT_FIXED1:
1355 {
1356 static const VertexFormat format(GL_FIXED, GL_FALSE, 1, false);
1357 return format;
1358 }
1359 case VERTEX_FORMAT_FIXED2:
1360 {
1361 static const VertexFormat format(GL_FIXED, GL_FALSE, 2, false);
1362 return format;
1363 }
1364 case VERTEX_FORMAT_FIXED3:
1365 {
1366 static const VertexFormat format(GL_FIXED, GL_FALSE, 3, false);
1367 return format;
1368 }
1369 case VERTEX_FORMAT_FIXED4:
1370 {
1371 static const VertexFormat format(GL_FIXED, GL_FALSE, 4, false);
1372 return format;
1373 }
1374 case VERTEX_FORMAT_HALF1:
1375 {
1376 static const VertexFormat format(GL_HALF_FLOAT, GL_FALSE, 1, false);
1377 return format;
1378 }
1379 case VERTEX_FORMAT_HALF2:
1380 {
1381 static const VertexFormat format(GL_HALF_FLOAT, GL_FALSE, 2, false);
1382 return format;
1383 }
1384 case VERTEX_FORMAT_HALF3:
1385 {
1386 static const VertexFormat format(GL_HALF_FLOAT, GL_FALSE, 3, false);
1387 return format;
1388 }
1389 case VERTEX_FORMAT_HALF4:
1390 {
1391 static const VertexFormat format(GL_HALF_FLOAT, GL_FALSE, 4, false);
1392 return format;
1393 }
1394 case VERTEX_FORMAT_FLOAT1:
1395 {
1396 static const VertexFormat format(GL_FLOAT, GL_FALSE, 1, false);
1397 return format;
1398 }
1399 case VERTEX_FORMAT_FLOAT2:
1400 {
1401 static const VertexFormat format(GL_FLOAT, GL_FALSE, 2, false);
1402 return format;
1403 }
1404 case VERTEX_FORMAT_FLOAT3:
1405 {
1406 static const VertexFormat format(GL_FLOAT, GL_FALSE, 3, false);
1407 return format;
1408 }
1409 case VERTEX_FORMAT_FLOAT4:
1410 {
1411 static const VertexFormat format(GL_FLOAT, GL_FALSE, 4, false);
1412 return format;
1413 }
1414 case VERTEX_FORMAT_SINT210:
1415 {
1416 static const VertexFormat format(GL_INT_2_10_10_10_REV, GL_FALSE, 4, false);
1417 return format;
1418 }
1419 case VERTEX_FORMAT_UINT210:
1420 {
1421 static const VertexFormat format(GL_UNSIGNED_INT_2_10_10_10_REV, GL_FALSE, 4, false);
1422 return format;
1423 }
1424 case VERTEX_FORMAT_SINT210_NORM:
1425 {
1426 static const VertexFormat format(GL_INT_2_10_10_10_REV, GL_TRUE, 4, false);
1427 return format;
1428 }
1429 case VERTEX_FORMAT_UINT210_NORM:
1430 {
1431 static const VertexFormat format(GL_UNSIGNED_INT_2_10_10_10_REV, GL_TRUE, 4, false);
1432 return format;
1433 }
1434 case VERTEX_FORMAT_SINT210_INT:
1435 {
1436 static const VertexFormat format(GL_INT_2_10_10_10_REV, GL_FALSE, 4, true);
1437 return format;
1438 }
1439 case VERTEX_FORMAT_UINT210_INT:
1440 {
1441 static const VertexFormat format(GL_UNSIGNED_INT_2_10_10_10_REV, GL_FALSE, 4, true);
1442 return format;
1443 }
1444 default:
1445 {
1446 static const VertexFormat format(GL_NONE, GL_FALSE, 0, false);
1447 return format;
1448 }
1449 }
1450}
1451
1452VertexFormat::VertexFormat(GLenum typeIn, GLboolean normalizedIn, GLuint componentsIn, bool pureIntegerIn)
1453 : type(typeIn),
1454 normalized(normalizedIn),
1455 components(componentsIn),
1456 pureInteger(pureIntegerIn)
1457{
1458 // float -> !normalized
1459 ASSERT(!(type == GL_FLOAT || type == GL_HALF_FLOAT || type == GL_FIXED) || normalized == GL_FALSE);
1460}
1461
shannonwoods@chromium.orgb8490f32013-05-30 00:08:00 +0000[diff] [blame]1462}