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source: vbox/trunk/src/VBox/GuestHost/OpenGL/include/state/cr_texture.h@ 33280

Last change on this file since 33280 was 31808, checked in by vboxsync, 14 years ago

crOpenGL: resource sharing between contexts
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1/* Copyright (c) 2001, Stanford University
2 * All rights reserved.
3 *
4 * See the file LICENSE.txt for information on redistributing this software.
5 */
6
7#ifndef CR_STATE_TEXTURE_H
8#define CR_STATE_TEXTURE_H
9
10#include "cr_hash.h"
11#include "state/cr_statetypes.h"
12#include "state/cr_limits.h"
13
14#include <iprt/cdefs.h>
15
16#ifdef __cplusplus
17extern "C" {
18#endif
19
20/* Tells state tracker to rely on diff_api to store/load texture images
21 * and avoid host memory allocation.
22 */
23#define CR_STATE_NO_TEXTURE_IMAGE_STORE
24
25#if defined(CR_ARB_pixel_buffer_object) && !defined(CR_STATE_NO_TEXTURE_IMAGE_STORE)
26#error CR_ARB_pixel_buffer_object not supported without CR_STATE_NO_TEXTURE_IMAGE_STORE
27#endif
28
29#define CR_MAX_MIPMAP_LEVELS 20
30
31typedef struct {
32 GLubyte redbits;
33 GLubyte greenbits;
34 GLubyte bluebits;
35 GLubyte alphabits;
36 GLubyte luminancebits;
37 GLubyte intensitybits;
38 GLubyte indexbits;
39} CRTextureFormat;
40
41typedef struct {
42 GLubyte *img;
43 int bytes;
44 GLint width; /* width, height, depth includes the border */
45 GLint height;
46 GLint depth;
47 GLint internalFormat;
48 GLint border;
49 GLenum format;
50 GLenum type;
51 int bytesPerPixel;
52#if CR_ARB_texture_compression
53 GLboolean compressed;
54#endif
55 GLboolean generateMipmap;
56 const CRTextureFormat *texFormat;
57
58 CRbitvalue dirty[CR_MAX_BITARRAY];
59} CRTextureLevel;
60
61typedef struct {
62 GLenum target;
63 GLuint id;
64 GLuint hwid;
65
66 /* The mipmap levels */
67 CRTextureLevel *level[6]; /* 6 cube faces */
68
69 GLcolorf borderColor;
70 GLenum minFilter, magFilter;
71 GLenum wrapS, wrapT;
72#ifdef CR_OPENGL_VERSION_1_2
73 GLenum wrapR;
74 GLfloat priority;
75 GLfloat minLod;
76 GLfloat maxLod;
77 GLint baseLevel;
78 GLint maxLevel;
79#endif
80#ifdef CR_EXT_texture_filter_anisotropic
81 GLfloat maxAnisotropy;
82#endif
83#ifdef CR_ARB_depth_texture
84 GLenum depthMode;
85#endif
86#ifdef CR_ARB_shadow
87 GLenum compareMode;
88 GLenum compareFunc;
89#endif
90#ifdef CR_ARB_shadow_ambient
91 GLfloat compareFailValue;
92#endif
93#ifdef CR_SGIS_generate_mipmap
94 GLboolean generateMipmap;
95#endif
96 CRbitvalue dirty[CR_MAX_BITARRAY];
97 CRbitvalue imageBit[CR_MAX_BITARRAY];
98 CRbitvalue paramsBit[CR_MAX_TEXTURE_UNITS][CR_MAX_BITARRAY];
99} CRTextureObj;
100
101typedef struct {
102 CRbitvalue dirty[CR_MAX_BITARRAY];
103 CRbitvalue enable[CR_MAX_TEXTURE_UNITS][CR_MAX_BITARRAY];
104 CRbitvalue current[CR_MAX_TEXTURE_UNITS][CR_MAX_BITARRAY];
105 CRbitvalue objGen[CR_MAX_TEXTURE_UNITS][CR_MAX_BITARRAY];
106 CRbitvalue eyeGen[CR_MAX_TEXTURE_UNITS][CR_MAX_BITARRAY];
107 CRbitvalue genMode[CR_MAX_TEXTURE_UNITS][CR_MAX_BITARRAY];
108 /* XXX someday create more bits for texture env state */
109 CRbitvalue envBit[CR_MAX_TEXTURE_UNITS][CR_MAX_BITARRAY];
110} CRTextureBits;
111
112typedef struct {
113 /* Current texture objects (in terms of glBindTexture and glActiveTexture) */
114 CRTextureObj *currentTexture1D;
115 CRTextureObj *currentTexture2D;
116 CRTextureObj *currentTexture3D;
117#ifdef CR_ARB_texture_cube_map
118 CRTextureObj *currentTextureCubeMap;
119#endif
120#ifdef CR_NV_texture_rectangle
121 CRTextureObj *currentTextureRect;
122#endif
123
124 GLboolean enabled1D;
125 GLboolean enabled2D;
126 GLboolean enabled3D;
127#ifdef CR_ARB_texture_cube_map
128 GLboolean enabledCubeMap;
129#endif
130#ifdef CR_NV_texture_rectangle
131 GLboolean enabledRect;
132#endif
133#ifdef CR_EXT_texture_lod_bias
134 GLfloat lodBias;
135#endif
136
137 GLenum envMode;
138 GLcolorf envColor;
139
140 /* GL_ARB_texture_env_combine */
141 GLenum combineModeRGB; /* GL_REPLACE, GL_DECAL, GL_ADD, etc. */
142 GLenum combineModeA; /* GL_REPLACE, GL_DECAL, GL_ADD, etc. */
143 GLenum combineSourceRGB[3]; /* GL_PRIMARY_COLOR, GL_TEXTURE, etc. */
144 GLenum combineSourceA[3]; /* GL_PRIMARY_COLOR, GL_TEXTURE, etc. */
145 GLenum combineOperandRGB[3]; /* SRC_COLOR, ONE_MINUS_SRC_COLOR, etc */
146 GLenum combineOperandA[3]; /* SRC_ALPHA, ONE_MINUS_SRC_ALPHA, etc */
147 GLfloat combineScaleRGB; /* 1 or 2 or 4 */
148 GLfloat combineScaleA; /* 1 or 2 or 4 */
149
150 GLtexcoordb textureGen;
151 GLvectorf objSCoeff;
152 GLvectorf objTCoeff;
153 GLvectorf objRCoeff;
154 GLvectorf objQCoeff;
155 GLvectorf eyeSCoeff;
156 GLvectorf eyeTCoeff;
157 GLvectorf eyeRCoeff;
158 GLvectorf eyeQCoeff;
159 GLtexcoorde gen;
160
161 /* These are only used for glPush/PopAttrib */
162 CRTextureObj Saved1D;
163 CRTextureObj Saved2D;
164 CRTextureObj Saved3D;
165#ifdef CR_ARB_texture_cube_map
166 CRTextureObj SavedCubeMap;
167#endif
168#ifdef CR_NV_texture_rectangle
169 CRTextureObj SavedRect;
170#endif
171} CRTextureUnit;
172
173typedef struct {
174 /* Default texture objects (name = 0) */
175 CRTextureObj base1D;
176 CRTextureObj base2D;
177 CRTextureObj base3D;
178#ifdef CR_ARB_texture_cube_map
179 CRTextureObj baseCubeMap;
180#endif
181#ifdef CR_NV_texture_rectangle
182 CRTextureObj baseRect;
183#endif
184
185 /* Proxy texture objects */
186 CRTextureObj proxy1D;
187 CRTextureObj proxy2D;
188 CRTextureObj proxy3D;
189#ifdef CR_ARB_texture_cube_map
190 CRTextureObj proxyCubeMap;
191#endif
192#ifdef CR_NV_texture_rectangle
193 CRTextureObj proxyRect;
194#endif
195
196 GLuint curTextureUnit; /* GL_ACTIVE_TEXTURE */
197
198 GLint maxLevel; /* number of mipmap levels possible: [0..max] */
199 GLint max3DLevel;
200 GLint maxCubeMapLevel;
201 GLint maxRectLevel;
202
203 GLboolean broadcastTextures; /*@todo what is it for?*/
204
205 /* Indicates that we have to resend texture data to GPU on first glMakeCurrent call with owning context */
206 GLboolean bResyncNeeded;
207
208 /* Per-texture unit state: */
209 CRTextureUnit unit[CR_MAX_TEXTURE_UNITS];
210} CRTextureState;
211
212DECLEXPORT(void) crStateTextureInit(CRContext *ctx);
213DECLEXPORT(void) crStateTextureDestroy(CRContext *ctx);
214DECLEXPORT(void) crStateTextureFree(CRContext *ctx);
215
216DECLEXPORT(void) crStateTextureInitTexture(GLuint name);
217DECLEXPORT(CRTextureObj *) crStateTextureAllocate(GLuint name);
218 /*void crStateTextureDelete(GLuint name);*/
219DECLEXPORT(CRTextureObj *) crStateTextureGet(GLenum target, GLuint textureid);
220DECLEXPORT(int) crStateTextureGetSize(GLenum target, GLenum level);
221DECLEXPORT(const GLvoid *) crStateTextureGetData(GLenum target, GLenum level);
222
223DECLEXPORT(int) crStateTextureCheckDirtyImages(CRContext *from, CRContext *to, GLenum target, int textureUnit);
224
225DECLEXPORT(void) crStateTextureDiff(CRTextureBits *t, CRbitvalue *bitID,
226 CRContext *fromCtx, CRContext *toCtx);
227DECLEXPORT(void) crStateTextureSwitch(CRTextureBits *t, CRbitvalue *bitID,
228 CRContext *fromCtx, CRContext *toCtx);
229
230DECLEXPORT(void) crStateTextureObjectDiff(CRContext *fromCtx,
231 const CRbitvalue *bitID,
232 const CRbitvalue *nbitID,
233 CRTextureObj *tobj, GLboolean alwaysDirty);
234
235DECLEXPORT(void) crStateDiffAllTextureObjects( CRContext *g, CRbitvalue *bitID, GLboolean bForceUpdate );
236
237DECLEXPORT(void) crStateDeleteTextureObjectData(CRTextureObj *tobj);
238DECLEXPORT(void) crStateDeleteTextureObject(CRTextureObj *tobj);
239
240DECLEXPORT(GLuint) STATE_APIENTRY crStateTextureHWIDtoID(GLuint hwid);
241DECLEXPORT(GLuint) STATE_APIENTRY crStateGetTextureHWID(GLuint id);
242DECLEXPORT(GLuint) STATE_APIENTRY crStateGetTextureObjHWID(CRTextureObj *tobj);
243
244#ifdef __cplusplus
245}
246#endif
247
248#endif /* CR_STATE_TEXTURE_H */
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