1 /* $Id: colortab.c,v 1.22 2000/10/28 18:34:48 brianp Exp $ */
4 * Mesa 3-D graphics library
7 * Copyright (C) 1999-2000 Brian Paul All Rights Reserved.
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the "Software"),
11 * to deal in the Software without restriction, including without limitation
12 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13 * and/or sell copies of the Software, and to permit persons to whom the
14 * Software is furnished to do so, subject to the following conditions:
16 * The above copyright notice and this permission notice shall be included
17 * in all copies or substantial portions of the Software.
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
23 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
24 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
44 * Given an internalFormat token passed to glColorTable,
45 * return the corresponding base format.
46 * Return -1 if invalid token.
49 base_colortab_format( GLenum format
)
64 case GL_LUMINANCE_ALPHA
:
65 case GL_LUMINANCE4_ALPHA4
:
66 case GL_LUMINANCE6_ALPHA2
:
67 case GL_LUMINANCE8_ALPHA8
:
68 case GL_LUMINANCE12_ALPHA4
:
69 case GL_LUMINANCE12_ALPHA12
:
70 case GL_LUMINANCE16_ALPHA16
:
71 return GL_LUMINANCE_ALPHA
;
97 return -1; /* error */
103 _mesa_init_colortable( struct gl_color_table
*p
)
105 p
->FloatTable
= GL_FALSE
;
106 /* allocate a width=1 table by default */
107 p
->Table
= CALLOC(4 * sizeof(GLchan
));
109 GLchan
*t
= (GLchan
*) p
->Table
;
116 p
->IntFormat
= GL_RGBA
;
118 p
->RedSize
= CHAN_BITS
;
119 p
->GreenSize
= CHAN_BITS
;
120 p
->BlueSize
= CHAN_BITS
;
121 p
->AlphaSize
= CHAN_BITS
;
122 p
->IntensitySize
= 0;
123 p
->LuminanceSize
= 0;
129 _mesa_free_colortable_data( struct gl_color_table
*p
)
139 * Examine table's format and set the component sizes accordingly.
142 set_component_sizes( struct gl_color_table
*table
)
144 switch (table
->Format
) {
147 table
->GreenSize
= 0;
149 table
->AlphaSize
= CHAN_BITS
;
150 table
->IntensitySize
= 0;
151 table
->LuminanceSize
= 0;
155 table
->GreenSize
= 0;
157 table
->AlphaSize
= 0;
158 table
->IntensitySize
= 0;
159 table
->LuminanceSize
= CHAN_BITS
;
161 case GL_LUMINANCE_ALPHA
:
163 table
->GreenSize
= 0;
165 table
->AlphaSize
= CHAN_BITS
;
166 table
->IntensitySize
= 0;
167 table
->LuminanceSize
= CHAN_BITS
;
171 table
->GreenSize
= 0;
173 table
->AlphaSize
= 0;
174 table
->IntensitySize
= CHAN_BITS
;
175 table
->LuminanceSize
= 0;
178 table
->RedSize
= CHAN_BITS
;
179 table
->GreenSize
= CHAN_BITS
;
180 table
->BlueSize
= CHAN_BITS
;
181 table
->AlphaSize
= 0;
182 table
->IntensitySize
= 0;
183 table
->LuminanceSize
= 0;
186 table
->RedSize
= CHAN_BITS
;
187 table
->GreenSize
= CHAN_BITS
;
188 table
->BlueSize
= CHAN_BITS
;
189 table
->AlphaSize
= CHAN_BITS
;
190 table
->IntensitySize
= 0;
191 table
->LuminanceSize
= 0;
194 gl_problem(NULL
, "unexpected format in set_component_sizes");
201 _mesa_ColorTable( GLenum target
, GLenum internalFormat
,
202 GLsizei width
, GLenum format
, GLenum type
,
205 GET_CURRENT_CONTEXT(ctx
);
206 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
207 struct gl_texture_object
*texObj
= NULL
;
208 struct gl_color_table
*table
= NULL
;
209 GLboolean proxy
= GL_FALSE
;
211 GLfloat rScale
= 1.0, gScale
= 1.0, bScale
= 1.0, aScale
= 1.0;
212 GLfloat rBias
= 0.0, gBias
= 0.0, bBias
= 0.0, aBias
= 0.0;
213 GLboolean floatTable
= GL_FALSE
;
216 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
, "glColorTable");
220 texObj
= texUnit
->CurrentD
[1];
221 table
= &texObj
->Palette
;
224 texObj
= texUnit
->CurrentD
[2];
225 table
= &texObj
->Palette
;
228 texObj
= texUnit
->CurrentD
[3];
229 table
= &texObj
->Palette
;
231 case GL_PROXY_TEXTURE_1D
:
232 texObj
= ctx
->Texture
.Proxy1D
;
233 table
= &texObj
->Palette
;
236 case GL_PROXY_TEXTURE_2D
:
237 texObj
= ctx
->Texture
.Proxy2D
;
238 table
= &texObj
->Palette
;
241 case GL_PROXY_TEXTURE_3D
:
242 texObj
= ctx
->Texture
.Proxy3D
;
243 table
= &texObj
->Palette
;
246 case GL_SHARED_TEXTURE_PALETTE_EXT
:
247 table
= &ctx
->Texture
.Palette
;
250 table
= &ctx
->ColorTable
;
251 floatTable
= GL_TRUE
;
252 rScale
= ctx
->Pixel
.ColorTableScale
[0];
253 gScale
= ctx
->Pixel
.ColorTableScale
[1];
254 bScale
= ctx
->Pixel
.ColorTableScale
[2];
255 aScale
= ctx
->Pixel
.ColorTableScale
[3];
256 rBias
= ctx
->Pixel
.ColorTableBias
[0];
257 gBias
= ctx
->Pixel
.ColorTableBias
[1];
258 bBias
= ctx
->Pixel
.ColorTableBias
[2];
259 aBias
= ctx
->Pixel
.ColorTableBias
[3];
261 case GL_PROXY_COLOR_TABLE
:
262 table
= &ctx
->ProxyColorTable
;
265 case GL_POST_CONVOLUTION_COLOR_TABLE
:
266 table
= &ctx
->PostConvolutionColorTable
;
267 floatTable
= GL_TRUE
;
268 rScale
= ctx
->Pixel
.PCCTscale
[0];
269 gScale
= ctx
->Pixel
.PCCTscale
[1];
270 bScale
= ctx
->Pixel
.PCCTscale
[2];
271 aScale
= ctx
->Pixel
.PCCTscale
[3];
272 rBias
= ctx
->Pixel
.PCCTbias
[0];
273 gBias
= ctx
->Pixel
.PCCTbias
[1];
274 bBias
= ctx
->Pixel
.PCCTbias
[2];
275 aBias
= ctx
->Pixel
.PCCTbias
[3];
277 case GL_PROXY_POST_CONVOLUTION_COLOR_TABLE
:
278 table
= &ctx
->ProxyPostConvolutionColorTable
;
281 case GL_POST_COLOR_MATRIX_COLOR_TABLE
:
282 table
= &ctx
->PostColorMatrixColorTable
;
283 floatTable
= GL_TRUE
;
284 rScale
= ctx
->Pixel
.PCMCTscale
[0];
285 gScale
= ctx
->Pixel
.PCMCTscale
[1];
286 bScale
= ctx
->Pixel
.PCMCTscale
[2];
287 aScale
= ctx
->Pixel
.PCMCTscale
[3];
288 rBias
= ctx
->Pixel
.PCMCTbias
[0];
289 gBias
= ctx
->Pixel
.PCMCTbias
[1];
290 bBias
= ctx
->Pixel
.PCMCTbias
[2];
291 aBias
= ctx
->Pixel
.PCMCTbias
[3];
293 case GL_PROXY_POST_COLOR_MATRIX_COLOR_TABLE
:
294 table
= &ctx
->ProxyPostColorMatrixColorTable
;
298 gl_error(ctx
, GL_INVALID_ENUM
, "glColorTable(target)");
304 if (!_mesa_is_legal_format_and_type(format
, type
) ||
305 format
== GL_INTENSITY
) {
306 gl_error(ctx
, GL_INVALID_ENUM
, "glColorTable(format or type)");
310 baseFormat
= base_colortab_format(internalFormat
);
311 if (baseFormat
< 0 || baseFormat
== GL_COLOR_INDEX
) {
312 gl_error(ctx
, GL_INVALID_ENUM
, "glColorTable(internalFormat)");
316 if (width
< 0 || _mesa_bitcount(width
) != 1) {
319 table
->IntFormat
= (GLenum
) 0;
320 table
->Format
= (GLenum
) 0;
323 gl_error(ctx
, GL_INVALID_VALUE
, "glColorTable(width)");
328 if (width
> ctx
->Const
.MaxColorTableSize
) {
331 table
->IntFormat
= (GLenum
) 0;
332 table
->Format
= (GLenum
) 0;
335 if (width
> ctx
->Const
.MaxColorTableSize
)
336 gl_error(ctx
, GL_TABLE_TOO_LARGE
, "glColorTable(width)");
338 gl_error(ctx
, GL_INVALID_VALUE
, "glColorTable(width)");
344 table
->IntFormat
= internalFormat
;
345 table
->Format
= (GLenum
) baseFormat
;
346 set_component_sizes(table
);
348 comps
= _mesa_components_in_format(table
->Format
);
349 assert(comps
> 0); /* error should have been caught sooner */
352 /* free old table, if any */
357 GLfloat tempTab
[MAX_COLOR_TABLE_SIZE
* 4];
361 _mesa_unpack_float_color_span(ctx
, width
, table
->Format
,
363 format
, type
, data
, &ctx
->Unpack
,
366 table
->FloatTable
= GL_TRUE
;
367 table
->Table
= MALLOC(comps
* width
* sizeof(GLfloat
));
369 gl_error(ctx
, GL_OUT_OF_MEMORY
, "glColorTable");
373 tableF
= (GLfloat
*) table
->Table
;
375 switch (table
->Format
) {
377 for (i
= 0; i
< width
; i
++) {
378 tableF
[i
] = CLAMP(tempTab
[i
] * rScale
+ rBias
, 0.0F
, 1.0F
);
382 for (i
= 0; i
< width
; i
++) {
383 tableF
[i
] = CLAMP(tempTab
[i
] * rScale
+ rBias
, 0.0F
, 1.0F
);
387 for (i
= 0; i
< width
; i
++) {
388 tableF
[i
] = CLAMP(tempTab
[i
] * aScale
+ aBias
, 0.0F
, 1.0F
);
391 case GL_LUMINANCE_ALPHA
:
392 for (i
= 0; i
< width
; i
++) {
393 tableF
[i
*2+0] = CLAMP(tempTab
[i
*2+0] * rScale
+ rBias
, 0.0F
, 1.0F
);
394 tableF
[i
*2+1] = CLAMP(tempTab
[i
*2+1] * aScale
+ aBias
, 0.0F
, 1.0F
);
398 for (i
= 0; i
< width
; i
++) {
399 tableF
[i
*3+0] = CLAMP(tempTab
[i
*3+0] * rScale
+ rBias
, 0.0F
, 1.0F
);
400 tableF
[i
*3+1] = CLAMP(tempTab
[i
*3+1] * gScale
+ gBias
, 0.0F
, 1.0F
);
401 tableF
[i
*3+2] = CLAMP(tempTab
[i
*3+2] * bScale
+ bBias
, 0.0F
, 1.0F
);
405 for (i
= 0; i
< width
; i
++) {
406 tableF
[i
*4+0] = CLAMP(tempTab
[i
*4+0] * rScale
+ rBias
, 0.0F
, 1.0F
);
407 tableF
[i
*4+1] = CLAMP(tempTab
[i
*4+1] * gScale
+ gBias
, 0.0F
, 1.0F
);
408 tableF
[i
*4+2] = CLAMP(tempTab
[i
*4+2] * bScale
+ bBias
, 0.0F
, 1.0F
);
409 tableF
[i
*4+3] = CLAMP(tempTab
[i
*4+3] * aScale
+ aBias
, 0.0F
, 1.0F
);
413 gl_problem(ctx
, "Bad format in _mesa_ColorTable");
418 /* store GLchan table */
419 table
->FloatTable
= GL_FALSE
;
420 table
->Table
= MALLOC(comps
* width
* sizeof(GLchan
));
422 gl_error(ctx
, GL_OUT_OF_MEMORY
, "glColorTable");
425 _mesa_unpack_ubyte_color_span(ctx
, width
, table
->Format
,
426 table
->Table
, /* dest */
432 if (texObj
|| target
== GL_SHARED_TEXTURE_PALETTE_EXT
) {
433 /* texture object palette, texObj==NULL means the shared palette */
434 if (ctx
->Driver
.UpdateTexturePalette
) {
435 (*ctx
->Driver
.UpdateTexturePalette
)( ctx
, texObj
);
443 _mesa_ColorSubTable( GLenum target
, GLsizei start
,
444 GLsizei count
, GLenum format
, GLenum type
,
447 GET_CURRENT_CONTEXT(ctx
);
448 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
449 struct gl_texture_object
*texObj
= NULL
;
450 struct gl_color_table
*table
= NULL
;
451 GLfloat rScale
= 1.0, gScale
= 1.0, bScale
= 1.0, aScale
= 1.0;
452 GLfloat rBias
= 0.0, gBias
= 0.0, bBias
= 0.0, aBias
= 0.0;
455 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
, "glColorSubTable");
459 texObj
= texUnit
->CurrentD
[1];
460 table
= &texObj
->Palette
;
463 texObj
= texUnit
->CurrentD
[2];
464 table
= &texObj
->Palette
;
467 texObj
= texUnit
->CurrentD
[3];
468 table
= &texObj
->Palette
;
470 case GL_SHARED_TEXTURE_PALETTE_EXT
:
471 table
= &ctx
->Texture
.Palette
;
474 table
= &ctx
->ColorTable
;
475 rScale
= ctx
->Pixel
.ColorTableScale
[0];
476 gScale
= ctx
->Pixel
.ColorTableScale
[1];
477 bScale
= ctx
->Pixel
.ColorTableScale
[2];
478 aScale
= ctx
->Pixel
.ColorTableScale
[3];
479 rBias
= ctx
->Pixel
.ColorTableBias
[0];
480 gBias
= ctx
->Pixel
.ColorTableBias
[1];
481 bBias
= ctx
->Pixel
.ColorTableBias
[2];
482 aBias
= ctx
->Pixel
.ColorTableBias
[3];
484 case GL_POST_CONVOLUTION_COLOR_TABLE
:
485 table
= &ctx
->PostConvolutionColorTable
;
486 rScale
= ctx
->Pixel
.PCCTscale
[0];
487 gScale
= ctx
->Pixel
.PCCTscale
[1];
488 bScale
= ctx
->Pixel
.PCCTscale
[2];
489 aScale
= ctx
->Pixel
.PCCTscale
[3];
490 rBias
= ctx
->Pixel
.PCCTbias
[0];
491 gBias
= ctx
->Pixel
.PCCTbias
[1];
492 bBias
= ctx
->Pixel
.PCCTbias
[2];
493 aBias
= ctx
->Pixel
.PCCTbias
[3];
495 case GL_POST_COLOR_MATRIX_COLOR_TABLE
:
496 table
= &ctx
->PostColorMatrixColorTable
;
497 rScale
= ctx
->Pixel
.PCMCTscale
[0];
498 gScale
= ctx
->Pixel
.PCMCTscale
[1];
499 bScale
= ctx
->Pixel
.PCMCTscale
[2];
500 aScale
= ctx
->Pixel
.PCMCTscale
[3];
501 rBias
= ctx
->Pixel
.PCMCTbias
[0];
502 gBias
= ctx
->Pixel
.PCMCTbias
[1];
503 bBias
= ctx
->Pixel
.PCMCTbias
[2];
504 aBias
= ctx
->Pixel
.PCMCTbias
[3];
507 gl_error(ctx
, GL_INVALID_ENUM
, "glColorSubTable(target)");
513 if (!_mesa_is_legal_format_and_type(format
, type
) ||
514 format
== GL_INTENSITY
) {
515 gl_error(ctx
, GL_INVALID_ENUM
, "glColorSubTable(format or type)");
520 gl_error(ctx
, GL_INVALID_VALUE
, "glColorSubTable(count)");
524 comps
= _mesa_components_in_format(table
->Format
);
525 assert(comps
> 0); /* error should have been caught sooner */
527 if (start
+ count
> table
->Size
) {
528 gl_error(ctx
, GL_INVALID_VALUE
, "glColorSubTable(count)");
533 gl_error(ctx
, GL_OUT_OF_MEMORY
, "glColorSubTable");
537 if (!table
->FloatTable
) {
538 GLchan
*dest
= (GLchan
*) table
->Table
+ start
* comps
* sizeof(GLchan
);
539 _mesa_unpack_ubyte_color_span(ctx
, count
, table
->Format
, dest
,
540 format
, type
, data
, &ctx
->Unpack
, 0);
543 GLfloat tempTab
[MAX_COLOR_TABLE_SIZE
* 4];
547 ASSERT(table
->FloatTable
);
549 _mesa_unpack_float_color_span(ctx
, count
, table
->Format
,
551 format
, type
, data
, &ctx
->Unpack
,
554 tableF
= (GLfloat
*) table
->Table
;
556 switch (table
->Format
) {
558 for (i
= 0; i
< count
; i
++) {
559 GLuint j
= start
+ i
;
560 tableF
[j
] = CLAMP(tempTab
[i
] * rScale
+ rBias
, 0.0F
, 1.0F
);
564 for (i
= 0; i
< count
; i
++) {
565 GLuint j
= start
+ i
;
566 tableF
[j
] = CLAMP(tempTab
[i
] * rScale
+ rBias
, 0.0F
, 1.0F
);
570 for (i
= 0; i
< count
; i
++) {
571 GLuint j
= start
+ i
;
572 tableF
[j
] = CLAMP(tempTab
[i
] * aScale
+ aBias
, 0.0F
, 1.0F
);
575 case GL_LUMINANCE_ALPHA
:
576 for (i
= 0; i
< count
; i
++) {
577 GLuint j
= start
+ i
;
578 tableF
[j
*2+0] = CLAMP(tempTab
[i
*2+0] * rScale
+ rBias
, 0.0F
, 1.0F
);
579 tableF
[j
*2+1] = CLAMP(tempTab
[i
*2+1] * aScale
+ aBias
, 0.0F
, 1.0F
);
583 for (i
= 0; i
< count
; i
++) {
584 GLuint j
= start
+ i
;
585 tableF
[j
*3+0] = CLAMP(tempTab
[i
*3+0] * rScale
+ rBias
, 0.0F
, 1.0F
);
586 tableF
[j
*3+1] = CLAMP(tempTab
[i
*3+1] * gScale
+ gBias
, 0.0F
, 1.0F
);
587 tableF
[j
*3+2] = CLAMP(tempTab
[i
*3+2] * bScale
+ bBias
, 0.0F
, 1.0F
);
591 for (i
= 0; i
< count
; i
++) {
592 GLuint j
= start
+ i
;
593 tableF
[j
*4+0] = CLAMP(tempTab
[i
*4+0] * rScale
+ rBias
, 0.0F
, 1.0F
);
594 tableF
[j
*4+1] = CLAMP(tempTab
[i
*4+1] * gScale
+ gBias
, 0.0F
, 1.0F
);
595 tableF
[j
*4+2] = CLAMP(tempTab
[i
*4+2] * bScale
+ bBias
, 0.0F
, 1.0F
);
596 tableF
[j
*4+3] = CLAMP(tempTab
[i
*4+3] * aScale
+ aBias
, 0.0F
, 1.0F
);
600 gl_problem(ctx
, "Bad format in _mesa_ColorSubTable");
605 if (texObj
|| target
== GL_SHARED_TEXTURE_PALETTE_EXT
) {
606 /* per-texture object palette */
607 if (ctx
->Driver
.UpdateTexturePalette
) {
608 (*ctx
->Driver
.UpdateTexturePalette
)( ctx
, texObj
);
617 _mesa_CopyColorTable(GLenum target
, GLenum internalformat
,
618 GLint x
, GLint y
, GLsizei width
)
620 GLchan data
[MAX_WIDTH
][4];
621 GET_CURRENT_CONTEXT(ctx
);
622 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
, "glCopyColorTable");
624 /* Select buffer to read from */
625 (*ctx
->Driver
.SetReadBuffer
)( ctx
, ctx
->ReadBuffer
,
626 ctx
->Pixel
.DriverReadBuffer
);
628 if (width
> MAX_WIDTH
)
631 /* read the data from framebuffer */
632 gl_read_rgba_span( ctx
, ctx
->ReadBuffer
, width
, x
, y
, data
);
634 /* Restore reading from draw buffer (the default) */
635 (*ctx
->Driver
.SetReadBuffer
)( ctx
, ctx
->DrawBuffer
,
636 ctx
->Color
.DriverDrawBuffer
);
638 _mesa_ColorTable(target
, internalformat
, width
,
639 GL_RGBA
, GL_UNSIGNED_BYTE
, data
);
646 _mesa_CopyColorSubTable(GLenum target
, GLsizei start
,
647 GLint x
, GLint y
, GLsizei width
)
649 GLchan data
[MAX_WIDTH
][4];
650 GET_CURRENT_CONTEXT(ctx
);
651 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
, "glCopyColorSubTable");
653 /* Select buffer to read from */
654 (*ctx
->Driver
.SetReadBuffer
)( ctx
, ctx
->ReadBuffer
,
655 ctx
->Pixel
.DriverReadBuffer
);
657 if (width
> MAX_WIDTH
)
660 /* read the data from framebuffer */
661 gl_read_rgba_span( ctx
, ctx
->ReadBuffer
, width
, x
, y
, data
);
663 /* Restore reading from draw buffer (the default) */
664 (*ctx
->Driver
.SetReadBuffer
)( ctx
, ctx
->DrawBuffer
,
665 ctx
->Color
.DriverDrawBuffer
);
667 _mesa_ColorSubTable(target
, start
, width
, GL_RGBA
, GL_UNSIGNED_BYTE
, data
);
673 _mesa_GetColorTable( GLenum target
, GLenum format
,
674 GLenum type
, GLvoid
*data
)
676 GET_CURRENT_CONTEXT(ctx
);
677 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
678 struct gl_color_table
*table
= NULL
;
679 GLchan rgba
[MAX_COLOR_TABLE_SIZE
][4];
682 ASSERT_OUTSIDE_BEGIN_END(ctx
, "glGetColorTable");
686 table
= &texUnit
->CurrentD
[1]->Palette
;
689 table
= &texUnit
->CurrentD
[2]->Palette
;
692 table
= &texUnit
->CurrentD
[3]->Palette
;
694 case GL_SHARED_TEXTURE_PALETTE_EXT
:
695 table
= &ctx
->Texture
.Palette
;
698 table
= &ctx
->ColorTable
;
700 case GL_POST_CONVOLUTION_COLOR_TABLE
:
701 table
= &ctx
->PostConvolutionColorTable
;
703 case GL_POST_COLOR_MATRIX_COLOR_TABLE
:
704 table
= &ctx
->PostColorMatrixColorTable
;
707 gl_error(ctx
, GL_INVALID_ENUM
, "glGetColorTable(target)");
713 switch (table
->Format
) {
715 if (table
->FloatTable
) {
716 const GLfloat
*tableF
= (const GLfloat
*) table
->Table
;
717 for (i
= 0; i
< table
->Size
; i
++) {
721 rgba
[i
][ACOMP
] = (GLint
) (tableF
[i
] * CHAN_MAXF
);
725 const GLchan
*tableUB
= (const GLchan
*) table
->Table
;
726 for (i
= 0; i
< table
->Size
; i
++) {
730 rgba
[i
][ACOMP
] = tableUB
[i
];
735 if (table
->FloatTable
) {
736 const GLfloat
*tableF
= (const GLfloat
*) table
->Table
;
737 for (i
= 0; i
< table
->Size
; i
++) {
738 rgba
[i
][RCOMP
] = (GLint
) (tableF
[i
] * CHAN_MAXF
);
739 rgba
[i
][GCOMP
] = (GLint
) (tableF
[i
] * CHAN_MAXF
);
740 rgba
[i
][BCOMP
] = (GLint
) (tableF
[i
] * CHAN_MAXF
);
741 rgba
[i
][ACOMP
] = CHAN_MAX
;
745 const GLchan
*tableUB
= (const GLchan
*) table
->Table
;
746 for (i
= 0; i
< table
->Size
; i
++) {
747 rgba
[i
][RCOMP
] = tableUB
[i
];
748 rgba
[i
][GCOMP
] = tableUB
[i
];
749 rgba
[i
][BCOMP
] = tableUB
[i
];
750 rgba
[i
][ACOMP
] = CHAN_MAX
;
754 case GL_LUMINANCE_ALPHA
:
755 if (table
->FloatTable
) {
756 const GLfloat
*tableF
= (const GLfloat
*) table
->Table
;
757 for (i
= 0; i
< table
->Size
; i
++) {
758 rgba
[i
][RCOMP
] = (GLint
) (tableF
[i
*2+0] * CHAN_MAXF
);
759 rgba
[i
][GCOMP
] = (GLint
) (tableF
[i
*2+0] * CHAN_MAXF
);
760 rgba
[i
][BCOMP
] = (GLint
) (tableF
[i
*2+0] * CHAN_MAXF
);
761 rgba
[i
][ACOMP
] = (GLint
) (tableF
[i
*2+1] * CHAN_MAXF
);
765 const GLchan
*tableUB
= (const GLchan
*) table
->Table
;
766 for (i
= 0; i
< table
->Size
; i
++) {
767 rgba
[i
][RCOMP
] = tableUB
[i
*2+0];
768 rgba
[i
][GCOMP
] = tableUB
[i
*2+0];
769 rgba
[i
][BCOMP
] = tableUB
[i
*2+0];
770 rgba
[i
][ACOMP
] = tableUB
[i
*2+1];
775 if (table
->FloatTable
) {
776 const GLfloat
*tableF
= (const GLfloat
*) table
->Table
;
777 for (i
= 0; i
< table
->Size
; i
++) {
778 rgba
[i
][RCOMP
] = (GLint
) (tableF
[i
] * CHAN_MAXF
);
779 rgba
[i
][GCOMP
] = (GLint
) (tableF
[i
] * CHAN_MAXF
);
780 rgba
[i
][BCOMP
] = (GLint
) (tableF
[i
] * CHAN_MAXF
);
781 rgba
[i
][ACOMP
] = (GLint
) (tableF
[i
] * CHAN_MAXF
);
785 const GLchan
*tableUB
= (const GLchan
*) table
->Table
;
786 for (i
= 0; i
< table
->Size
; i
++) {
787 rgba
[i
][RCOMP
] = tableUB
[i
];
788 rgba
[i
][GCOMP
] = tableUB
[i
];
789 rgba
[i
][BCOMP
] = tableUB
[i
];
790 rgba
[i
][ACOMP
] = tableUB
[i
];
795 if (table
->FloatTable
) {
796 const GLfloat
*tableF
= (const GLfloat
*) table
->Table
;
797 for (i
= 0; i
< table
->Size
; i
++) {
798 rgba
[i
][RCOMP
] = (GLint
) (tableF
[i
*3+0] * CHAN_MAXF
);
799 rgba
[i
][GCOMP
] = (GLint
) (tableF
[i
*3+1] * CHAN_MAXF
);
800 rgba
[i
][BCOMP
] = (GLint
) (tableF
[i
*3+2] * CHAN_MAXF
);
801 rgba
[i
][ACOMP
] = CHAN_MAX
;
805 const GLchan
*tableUB
= (const GLchan
*) table
->Table
;
806 for (i
= 0; i
< table
->Size
; i
++) {
807 rgba
[i
][RCOMP
] = tableUB
[i
*3+0];
808 rgba
[i
][GCOMP
] = tableUB
[i
*3+1];
809 rgba
[i
][BCOMP
] = tableUB
[i
*3+2];
810 rgba
[i
][ACOMP
] = CHAN_MAX
;
815 if (table
->FloatTable
) {
816 const GLfloat
*tableF
= (const GLfloat
*) table
->Table
;
817 for (i
= 0; i
< table
->Size
; i
++) {
818 rgba
[i
][RCOMP
] = (GLint
) (tableF
[i
*4+0] * CHAN_MAXF
+ 0.5F
);
819 rgba
[i
][GCOMP
] = (GLint
) (tableF
[i
*4+1] * CHAN_MAXF
+ 0.5F
);
820 rgba
[i
][BCOMP
] = (GLint
) (tableF
[i
*4+2] * CHAN_MAXF
+ 0.5F
);
821 rgba
[i
][ACOMP
] = (GLint
) (tableF
[i
*4+3] * CHAN_MAXF
+ 0.5F
);
825 const GLchan
*tableUB
= (const GLchan
*) table
->Table
;
826 for (i
= 0; i
< table
->Size
; i
++) {
827 rgba
[i
][RCOMP
] = tableUB
[i
*4+0];
828 rgba
[i
][GCOMP
] = tableUB
[i
*4+1];
829 rgba
[i
][BCOMP
] = tableUB
[i
*4+2];
830 rgba
[i
][ACOMP
] = tableUB
[i
*4+3];
835 gl_problem(ctx
, "bad table format in glGetColorTable");
839 _mesa_pack_rgba_span(ctx
, table
->Size
, (const GLchan (*)[]) rgba
,
840 format
, type
, data
, &ctx
->Pack
, GL_FALSE
);
846 _mesa_ColorTableParameterfv(GLenum target
, GLenum pname
, const GLfloat
*params
)
848 GET_CURRENT_CONTEXT(ctx
);
849 ASSERT_OUTSIDE_BEGIN_END(ctx
, "glColorTableParameterfv");
852 case GL_COLOR_TABLE_SGI
:
853 if (pname
== GL_COLOR_TABLE_SCALE_SGI
) {
854 ctx
->Pixel
.ColorTableScale
[0] = params
[0];
855 ctx
->Pixel
.ColorTableScale
[1] = params
[1];
856 ctx
->Pixel
.ColorTableScale
[2] = params
[2];
857 ctx
->Pixel
.ColorTableScale
[3] = params
[3];
859 else if (pname
== GL_COLOR_TABLE_BIAS_SGI
) {
860 ctx
->Pixel
.ColorTableBias
[0] = params
[0];
861 ctx
->Pixel
.ColorTableBias
[1] = params
[1];
862 ctx
->Pixel
.ColorTableBias
[2] = params
[2];
863 ctx
->Pixel
.ColorTableBias
[3] = params
[3];
866 gl_error(ctx
, GL_INVALID_ENUM
, "glColorTableParameterfv(pname)");
870 case GL_POST_CONVOLUTION_COLOR_TABLE_SGI
:
871 if (pname
== GL_COLOR_TABLE_SCALE_SGI
) {
872 ctx
->Pixel
.PCCTscale
[0] = params
[0];
873 ctx
->Pixel
.PCCTscale
[1] = params
[1];
874 ctx
->Pixel
.PCCTscale
[2] = params
[2];
875 ctx
->Pixel
.PCCTscale
[3] = params
[3];
877 else if (pname
== GL_COLOR_TABLE_BIAS_SGI
) {
878 ctx
->Pixel
.PCCTbias
[0] = params
[0];
879 ctx
->Pixel
.PCCTbias
[1] = params
[1];
880 ctx
->Pixel
.PCCTbias
[2] = params
[2];
881 ctx
->Pixel
.PCCTbias
[3] = params
[3];
884 gl_error(ctx
, GL_INVALID_ENUM
, "glColorTableParameterfv(pname)");
888 case GL_POST_COLOR_MATRIX_COLOR_TABLE_SGI
:
889 if (pname
== GL_COLOR_TABLE_SCALE_SGI
) {
890 ctx
->Pixel
.PCMCTscale
[0] = params
[0];
891 ctx
->Pixel
.PCMCTscale
[1] = params
[1];
892 ctx
->Pixel
.PCMCTscale
[2] = params
[2];
893 ctx
->Pixel
.PCMCTscale
[3] = params
[3];
895 else if (pname
== GL_COLOR_TABLE_BIAS_SGI
) {
896 ctx
->Pixel
.PCMCTbias
[0] = params
[0];
897 ctx
->Pixel
.PCMCTbias
[1] = params
[1];
898 ctx
->Pixel
.PCMCTbias
[2] = params
[2];
899 ctx
->Pixel
.PCMCTbias
[3] = params
[3];
902 gl_error(ctx
, GL_INVALID_ENUM
, "glColorTableParameterfv(pname)");
907 gl_error(ctx
, GL_INVALID_ENUM
, "glColorTableParameter(target)");
915 _mesa_ColorTableParameteriv(GLenum target
, GLenum pname
, const GLint
*params
)
918 if (pname
== GL_COLOR_TABLE_SGI
||
919 pname
== GL_POST_CONVOLUTION_COLOR_TABLE_SGI
||
920 pname
== GL_POST_COLOR_MATRIX_COLOR_TABLE_SGI
) {
922 fparams
[0] = (GLfloat
) params
[0];
923 fparams
[1] = (GLfloat
) params
[1];
924 fparams
[2] = (GLfloat
) params
[2];
925 fparams
[3] = (GLfloat
) params
[3];
929 fparams
[0] = (GLfloat
) params
[0];
931 _mesa_ColorTableParameterfv(target
, pname
, fparams
);
937 _mesa_GetColorTableParameterfv( GLenum target
, GLenum pname
, GLfloat
*params
)
939 GET_CURRENT_CONTEXT(ctx
);
940 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
941 struct gl_color_table
*table
= NULL
;
943 ASSERT_OUTSIDE_BEGIN_END(ctx
, "glGetColorTableParameterfv");
947 table
= &texUnit
->CurrentD
[1]->Palette
;
950 table
= &texUnit
->CurrentD
[2]->Palette
;
953 table
= &texUnit
->CurrentD
[3]->Palette
;
955 case GL_PROXY_TEXTURE_1D
:
956 table
= &ctx
->Texture
.Proxy1D
->Palette
;
958 case GL_PROXY_TEXTURE_2D
:
959 table
= &ctx
->Texture
.Proxy2D
->Palette
;
961 case GL_PROXY_TEXTURE_3D
:
962 table
= &ctx
->Texture
.Proxy3D
->Palette
;
964 case GL_SHARED_TEXTURE_PALETTE_EXT
:
965 table
= &ctx
->Texture
.Palette
;
968 table
= &ctx
->ColorTable
;
969 if (pname
== GL_COLOR_TABLE_SCALE_SGI
) {
970 params
[0] = ctx
->Pixel
.ColorTableScale
[0];
971 params
[1] = ctx
->Pixel
.ColorTableScale
[1];
972 params
[2] = ctx
->Pixel
.ColorTableScale
[2];
973 params
[3] = ctx
->Pixel
.ColorTableScale
[3];
976 else if (pname
== GL_COLOR_TABLE_BIAS_SGI
) {
977 params
[0] = ctx
->Pixel
.ColorTableBias
[0];
978 params
[1] = ctx
->Pixel
.ColorTableBias
[1];
979 params
[2] = ctx
->Pixel
.ColorTableBias
[2];
980 params
[3] = ctx
->Pixel
.ColorTableBias
[3];
984 case GL_PROXY_COLOR_TABLE
:
985 table
= &ctx
->ProxyColorTable
;
987 case GL_POST_CONVOLUTION_COLOR_TABLE
:
988 table
= &ctx
->PostConvolutionColorTable
;
989 if (pname
== GL_COLOR_TABLE_SCALE_SGI
) {
990 params
[0] = ctx
->Pixel
.PCCTscale
[0];
991 params
[1] = ctx
->Pixel
.PCCTscale
[1];
992 params
[2] = ctx
->Pixel
.PCCTscale
[2];
993 params
[3] = ctx
->Pixel
.PCCTscale
[3];
996 else if (pname
== GL_COLOR_TABLE_BIAS_SGI
) {
997 params
[0] = ctx
->Pixel
.PCCTbias
[0];
998 params
[1] = ctx
->Pixel
.PCCTbias
[1];
999 params
[2] = ctx
->Pixel
.PCCTbias
[2];
1000 params
[3] = ctx
->Pixel
.PCCTbias
[3];
1004 case GL_PROXY_POST_CONVOLUTION_COLOR_TABLE
:
1005 table
= &ctx
->ProxyPostConvolutionColorTable
;
1007 case GL_POST_COLOR_MATRIX_COLOR_TABLE
:
1008 table
= &ctx
->PostColorMatrixColorTable
;
1009 if (pname
== GL_COLOR_TABLE_SCALE_SGI
) {
1010 params
[0] = ctx
->Pixel
.PCMCTscale
[0];
1011 params
[1] = ctx
->Pixel
.PCMCTscale
[1];
1012 params
[2] = ctx
->Pixel
.PCMCTscale
[2];
1013 params
[3] = ctx
->Pixel
.PCMCTscale
[3];
1016 else if (pname
== GL_COLOR_TABLE_BIAS_SGI
) {
1017 params
[0] = ctx
->Pixel
.PCMCTbias
[0];
1018 params
[1] = ctx
->Pixel
.PCMCTbias
[1];
1019 params
[2] = ctx
->Pixel
.PCMCTbias
[2];
1020 params
[3] = ctx
->Pixel
.PCMCTbias
[3];
1024 case GL_PROXY_POST_COLOR_MATRIX_COLOR_TABLE
:
1025 table
= &ctx
->ProxyPostColorMatrixColorTable
;
1028 gl_error(ctx
, GL_INVALID_ENUM
, "glGetColorTableParameterfv(target)");
1035 case GL_COLOR_TABLE_FORMAT
:
1036 *params
= table
->IntFormat
;
1038 case GL_COLOR_TABLE_WIDTH
:
1039 *params
= table
->Size
;
1041 case GL_COLOR_TABLE_RED_SIZE
:
1042 *params
= table
->RedSize
;
1044 case GL_COLOR_TABLE_GREEN_SIZE
:
1045 *params
= table
->GreenSize
;
1047 case GL_COLOR_TABLE_BLUE_SIZE
:
1048 *params
= table
->BlueSize
;
1050 case GL_COLOR_TABLE_ALPHA_SIZE
:
1051 *params
= table
->AlphaSize
;
1053 case GL_COLOR_TABLE_LUMINANCE_SIZE
:
1054 *params
= table
->LuminanceSize
;
1056 case GL_COLOR_TABLE_INTENSITY_SIZE
:
1057 *params
= table
->IntensitySize
;
1060 gl_error(ctx
, GL_INVALID_ENUM
, "glGetColorTableParameterfv(pname)" );
1068 _mesa_GetColorTableParameteriv( GLenum target
, GLenum pname
, GLint
*params
)
1070 GET_CURRENT_CONTEXT(ctx
);
1071 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1072 struct gl_color_table
*table
= NULL
;
1074 ASSERT_OUTSIDE_BEGIN_END(ctx
, "glGetColorTableParameteriv");
1078 table
= &texUnit
->CurrentD
[1]->Palette
;
1081 table
= &texUnit
->CurrentD
[2]->Palette
;
1084 table
= &texUnit
->CurrentD
[3]->Palette
;
1086 case GL_PROXY_TEXTURE_1D
:
1087 table
= &ctx
->Texture
.Proxy1D
->Palette
;
1089 case GL_PROXY_TEXTURE_2D
:
1090 table
= &ctx
->Texture
.Proxy2D
->Palette
;
1092 case GL_PROXY_TEXTURE_3D
:
1093 table
= &ctx
->Texture
.Proxy3D
->Palette
;
1095 case GL_SHARED_TEXTURE_PALETTE_EXT
:
1096 table
= &ctx
->Texture
.Palette
;
1098 case GL_COLOR_TABLE
:
1099 table
= &ctx
->ColorTable
;
1100 if (pname
== GL_COLOR_TABLE_SCALE_SGI
) {
1101 params
[0] = (GLint
) ctx
->Pixel
.ColorTableScale
[0];
1102 params
[1] = (GLint
) ctx
->Pixel
.ColorTableScale
[1];
1103 params
[2] = (GLint
) ctx
->Pixel
.ColorTableScale
[2];
1104 params
[3] = (GLint
) ctx
->Pixel
.ColorTableScale
[3];
1107 else if (pname
== GL_COLOR_TABLE_BIAS_SGI
) {
1108 params
[0] = (GLint
) ctx
->Pixel
.ColorTableBias
[0];
1109 params
[1] = (GLint
) ctx
->Pixel
.ColorTableBias
[1];
1110 params
[2] = (GLint
) ctx
->Pixel
.ColorTableBias
[2];
1111 params
[3] = (GLint
) ctx
->Pixel
.ColorTableBias
[3];
1115 case GL_PROXY_COLOR_TABLE
:
1116 table
= &ctx
->ProxyColorTable
;
1118 case GL_POST_CONVOLUTION_COLOR_TABLE
:
1119 table
= &ctx
->PostConvolutionColorTable
;
1120 if (pname
== GL_COLOR_TABLE_SCALE_SGI
) {
1121 params
[0] = (GLint
) ctx
->Pixel
.PCCTscale
[0];
1122 params
[1] = (GLint
) ctx
->Pixel
.PCCTscale
[1];
1123 params
[2] = (GLint
) ctx
->Pixel
.PCCTscale
[2];
1124 params
[3] = (GLint
) ctx
->Pixel
.PCCTscale
[3];
1127 else if (pname
== GL_COLOR_TABLE_BIAS_SGI
) {
1128 params
[0] = (GLint
) ctx
->Pixel
.PCCTbias
[0];
1129 params
[1] = (GLint
) ctx
->Pixel
.PCCTbias
[1];
1130 params
[2] = (GLint
) ctx
->Pixel
.PCCTbias
[2];
1131 params
[3] = (GLint
) ctx
->Pixel
.PCCTbias
[3];
1135 case GL_PROXY_POST_CONVOLUTION_COLOR_TABLE
:
1136 table
= &ctx
->ProxyPostConvolutionColorTable
;
1138 case GL_POST_COLOR_MATRIX_COLOR_TABLE
:
1139 table
= &ctx
->PostColorMatrixColorTable
;
1140 if (pname
== GL_COLOR_TABLE_SCALE_SGI
) {
1141 params
[0] = (GLint
) ctx
->Pixel
.PCMCTscale
[0];
1142 params
[1] = (GLint
) ctx
->Pixel
.PCMCTscale
[1];
1143 params
[2] = (GLint
) ctx
->Pixel
.PCMCTscale
[2];
1144 params
[3] = (GLint
) ctx
->Pixel
.PCMCTscale
[3];
1147 else if (pname
== GL_COLOR_TABLE_BIAS_SGI
) {
1148 params
[0] = (GLint
) ctx
->Pixel
.PCMCTbias
[0];
1149 params
[1] = (GLint
) ctx
->Pixel
.PCMCTbias
[1];
1150 params
[2] = (GLint
) ctx
->Pixel
.PCMCTbias
[2];
1151 params
[3] = (GLint
) ctx
->Pixel
.PCMCTbias
[3];
1155 case GL_PROXY_POST_COLOR_MATRIX_COLOR_TABLE
:
1156 table
= &ctx
->ProxyPostColorMatrixColorTable
;
1159 gl_error(ctx
, GL_INVALID_ENUM
, "glGetColorTableParameteriv(target)");
1166 case GL_COLOR_TABLE_FORMAT
:
1167 *params
= table
->IntFormat
;
1169 case GL_COLOR_TABLE_WIDTH
:
1170 *params
= table
->Size
;
1172 case GL_COLOR_TABLE_RED_SIZE
:
1173 *params
= table
->RedSize
;
1175 case GL_COLOR_TABLE_GREEN_SIZE
:
1176 *params
= table
->GreenSize
;
1178 case GL_COLOR_TABLE_BLUE_SIZE
:
1179 *params
= table
->BlueSize
;
1181 case GL_COLOR_TABLE_ALPHA_SIZE
:
1182 *params
= table
->AlphaSize
;
1184 case GL_COLOR_TABLE_LUMINANCE_SIZE
:
1185 *params
= table
->LuminanceSize
;
1187 case GL_COLOR_TABLE_INTENSITY_SIZE
:
1188 *params
= table
->IntensitySize
;
1191 gl_error(ctx
, GL_INVALID_ENUM
, "glGetColorTableParameteriv(pname)" );