1 /**************************************************************************
3 * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
5 * Copyright 2008 VMware, Inc. All rights reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sub license, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
22 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
23 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 **************************************************************************/
31 * Mipmap generation utility
37 #include "pipe/p_context.h"
38 #include "util/u_debug.h"
39 #include "pipe/p_defines.h"
40 #include "pipe/p_inlines.h"
41 #include "pipe/p_shader_tokens.h"
42 #include "pipe/p_state.h"
44 #include "util/u_memory.h"
45 #include "util/u_draw_quad.h"
46 #include "util/u_gen_mipmap.h"
47 #include "util/u_simple_shaders.h"
49 #include "tgsi/tgsi_build.h"
50 #include "tgsi/tgsi_dump.h"
51 #include "tgsi/tgsi_parse.h"
53 #include "cso_cache/cso_context.h"
56 struct gen_mipmap_state
58 struct pipe_context
*pipe
;
59 struct cso_context
*cso
;
61 struct pipe_blend_state blend
;
62 struct pipe_depth_stencil_alpha_state depthstencil
;
63 struct pipe_rasterizer_state rasterizer
;
64 struct pipe_sampler_state sampler
;
69 struct pipe_buffer
*vbuf
; /**< quad vertices */
72 float vertices
[4][2][4]; /**< vertex/texcoords for quad */
84 DTYPE_USHORT_1_5_5_5_REV
,
91 typedef ushort half_float
;
95 float_to_half(float f
)
102 half_to_float(half_float h
)
112 * \name Support macros for do_row and do_row_3d
114 * The macro madness is here for two reasons. First, it compacts the code
115 * slightly. Second, it makes it much easier to adjust the specifics of the
116 * filter to tune the rounding characteristics.
119 #define DECLARE_ROW_POINTERS(t, e) \
120 const t(*rowA)[e] = (const t(*)[e]) srcRowA; \
121 const t(*rowB)[e] = (const t(*)[e]) srcRowB; \
122 const t(*rowC)[e] = (const t(*)[e]) srcRowC; \
123 const t(*rowD)[e] = (const t(*)[e]) srcRowD; \
124 t(*dst)[e] = (t(*)[e]) dstRow
126 #define DECLARE_ROW_POINTERS0(t) \
127 const t *rowA = (const t *) srcRowA; \
128 const t *rowB = (const t *) srcRowB; \
129 const t *rowC = (const t *) srcRowC; \
130 const t *rowD = (const t *) srcRowD; \
131 t *dst = (t *) dstRow
133 #define FILTER_SUM_3D(Aj, Ak, Bj, Bk, Cj, Ck, Dj, Dk) \
134 ((unsigned) Aj + (unsigned) Ak \
135 + (unsigned) Bj + (unsigned) Bk \
136 + (unsigned) Cj + (unsigned) Ck \
137 + (unsigned) Dj + (unsigned) Dk \
140 #define FILTER_3D(e) \
142 dst[i][e] = FILTER_SUM_3D(rowA[j][e], rowA[k][e], \
143 rowB[j][e], rowB[k][e], \
144 rowC[j][e], rowC[k][e], \
145 rowD[j][e], rowD[k][e]); \
148 #define FILTER_F_3D(e) \
150 dst[i][e] = (rowA[j][e] + rowA[k][e] \
151 + rowB[j][e] + rowB[k][e] \
152 + rowC[j][e] + rowC[k][e] \
153 + rowD[j][e] + rowD[k][e]) * 0.125F; \
156 #define FILTER_HF_3D(e) \
158 const float aj = half_to_float(rowA[j][e]); \
159 const float ak = half_to_float(rowA[k][e]); \
160 const float bj = half_to_float(rowB[j][e]); \
161 const float bk = half_to_float(rowB[k][e]); \
162 const float cj = half_to_float(rowC[j][e]); \
163 const float ck = half_to_float(rowC[k][e]); \
164 const float dj = half_to_float(rowD[j][e]); \
165 const float dk = half_to_float(rowD[k][e]); \
166 dst[i][e] = float_to_half((aj + ak + bj + bk + cj + ck + dj + dk) \
173 * Average together two rows of a source image to produce a single new
174 * row in the dest image. It's legal for the two source rows to point
175 * to the same data. The source width must be equal to either the
176 * dest width or two times the dest width.
177 * \param datatype GL_UNSIGNED_BYTE, GL_UNSIGNED_SHORT, GL_FLOAT, etc.
178 * \param comps number of components per pixel (1..4)
181 do_row(enum dtype datatype
, uint comps
, int srcWidth
,
182 const void *srcRowA
, const void *srcRowB
,
183 int dstWidth
, void *dstRow
)
185 const uint k0
= (srcWidth
== dstWidth
) ? 0 : 1;
186 const uint colStride
= (srcWidth
== dstWidth
) ? 1 : 2;
191 /* This assertion is no longer valid with non-power-of-2 textures
192 assert(srcWidth == dstWidth || srcWidth == 2 * dstWidth);
195 if (datatype
== DTYPE_UBYTE
&& comps
== 4) {
197 const ubyte(*rowA
)[4] = (const ubyte(*)[4]) srcRowA
;
198 const ubyte(*rowB
)[4] = (const ubyte(*)[4]) srcRowB
;
199 ubyte(*dst
)[4] = (ubyte(*)[4]) dstRow
;
200 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
201 i
++, j
+= colStride
, k
+= colStride
) {
202 dst
[i
][0] = (rowA
[j
][0] + rowA
[k
][0] + rowB
[j
][0] + rowB
[k
][0]) / 4;
203 dst
[i
][1] = (rowA
[j
][1] + rowA
[k
][1] + rowB
[j
][1] + rowB
[k
][1]) / 4;
204 dst
[i
][2] = (rowA
[j
][2] + rowA
[k
][2] + rowB
[j
][2] + rowB
[k
][2]) / 4;
205 dst
[i
][3] = (rowA
[j
][3] + rowA
[k
][3] + rowB
[j
][3] + rowB
[k
][3]) / 4;
208 else if (datatype
== DTYPE_UBYTE
&& comps
== 3) {
210 const ubyte(*rowA
)[3] = (const ubyte(*)[3]) srcRowA
;
211 const ubyte(*rowB
)[3] = (const ubyte(*)[3]) srcRowB
;
212 ubyte(*dst
)[3] = (ubyte(*)[3]) dstRow
;
213 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
214 i
++, j
+= colStride
, k
+= colStride
) {
215 dst
[i
][0] = (rowA
[j
][0] + rowA
[k
][0] + rowB
[j
][0] + rowB
[k
][0]) / 4;
216 dst
[i
][1] = (rowA
[j
][1] + rowA
[k
][1] + rowB
[j
][1] + rowB
[k
][1]) / 4;
217 dst
[i
][2] = (rowA
[j
][2] + rowA
[k
][2] + rowB
[j
][2] + rowB
[k
][2]) / 4;
220 else if (datatype
== DTYPE_UBYTE
&& comps
== 2) {
222 const ubyte(*rowA
)[2] = (const ubyte(*)[2]) srcRowA
;
223 const ubyte(*rowB
)[2] = (const ubyte(*)[2]) srcRowB
;
224 ubyte(*dst
)[2] = (ubyte(*)[2]) dstRow
;
225 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
226 i
++, j
+= colStride
, k
+= colStride
) {
227 dst
[i
][0] = (rowA
[j
][0] + rowA
[k
][0] + rowB
[j
][0] + rowB
[k
][0]) >> 2;
228 dst
[i
][1] = (rowA
[j
][1] + rowA
[k
][1] + rowB
[j
][1] + rowB
[k
][1]) >> 2;
231 else if (datatype
== DTYPE_UBYTE
&& comps
== 1) {
233 const ubyte
*rowA
= (const ubyte
*) srcRowA
;
234 const ubyte
*rowB
= (const ubyte
*) srcRowB
;
235 ubyte
*dst
= (ubyte
*) dstRow
;
236 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
237 i
++, j
+= colStride
, k
+= colStride
) {
238 dst
[i
] = (rowA
[j
] + rowA
[k
] + rowB
[j
] + rowB
[k
]) >> 2;
242 else if (datatype
== DTYPE_USHORT
&& comps
== 4) {
244 const ushort(*rowA
)[4] = (const ushort(*)[4]) srcRowA
;
245 const ushort(*rowB
)[4] = (const ushort(*)[4]) srcRowB
;
246 ushort(*dst
)[4] = (ushort(*)[4]) dstRow
;
247 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
248 i
++, j
+= colStride
, k
+= colStride
) {
249 dst
[i
][0] = (rowA
[j
][0] + rowA
[k
][0] + rowB
[j
][0] + rowB
[k
][0]) / 4;
250 dst
[i
][1] = (rowA
[j
][1] + rowA
[k
][1] + rowB
[j
][1] + rowB
[k
][1]) / 4;
251 dst
[i
][2] = (rowA
[j
][2] + rowA
[k
][2] + rowB
[j
][2] + rowB
[k
][2]) / 4;
252 dst
[i
][3] = (rowA
[j
][3] + rowA
[k
][3] + rowB
[j
][3] + rowB
[k
][3]) / 4;
255 else if (datatype
== DTYPE_USHORT
&& comps
== 3) {
257 const ushort(*rowA
)[3] = (const ushort(*)[3]) srcRowA
;
258 const ushort(*rowB
)[3] = (const ushort(*)[3]) srcRowB
;
259 ushort(*dst
)[3] = (ushort(*)[3]) dstRow
;
260 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
261 i
++, j
+= colStride
, k
+= colStride
) {
262 dst
[i
][0] = (rowA
[j
][0] + rowA
[k
][0] + rowB
[j
][0] + rowB
[k
][0]) / 4;
263 dst
[i
][1] = (rowA
[j
][1] + rowA
[k
][1] + rowB
[j
][1] + rowB
[k
][1]) / 4;
264 dst
[i
][2] = (rowA
[j
][2] + rowA
[k
][2] + rowB
[j
][2] + rowB
[k
][2]) / 4;
267 else if (datatype
== DTYPE_USHORT
&& comps
== 2) {
269 const ushort(*rowA
)[2] = (const ushort(*)[2]) srcRowA
;
270 const ushort(*rowB
)[2] = (const ushort(*)[2]) srcRowB
;
271 ushort(*dst
)[2] = (ushort(*)[2]) dstRow
;
272 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
273 i
++, j
+= colStride
, k
+= colStride
) {
274 dst
[i
][0] = (rowA
[j
][0] + rowA
[k
][0] + rowB
[j
][0] + rowB
[k
][0]) / 4;
275 dst
[i
][1] = (rowA
[j
][1] + rowA
[k
][1] + rowB
[j
][1] + rowB
[k
][1]) / 4;
278 else if (datatype
== DTYPE_USHORT
&& comps
== 1) {
280 const ushort
*rowA
= (const ushort
*) srcRowA
;
281 const ushort
*rowB
= (const ushort
*) srcRowB
;
282 ushort
*dst
= (ushort
*) dstRow
;
283 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
284 i
++, j
+= colStride
, k
+= colStride
) {
285 dst
[i
] = (rowA
[j
] + rowA
[k
] + rowB
[j
] + rowB
[k
]) / 4;
289 else if (datatype
== DTYPE_FLOAT
&& comps
== 4) {
291 const float(*rowA
)[4] = (const float(*)[4]) srcRowA
;
292 const float(*rowB
)[4] = (const float(*)[4]) srcRowB
;
293 float(*dst
)[4] = (float(*)[4]) dstRow
;
294 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
295 i
++, j
+= colStride
, k
+= colStride
) {
296 dst
[i
][0] = (rowA
[j
][0] + rowA
[k
][0] +
297 rowB
[j
][0] + rowB
[k
][0]) * 0.25F
;
298 dst
[i
][1] = (rowA
[j
][1] + rowA
[k
][1] +
299 rowB
[j
][1] + rowB
[k
][1]) * 0.25F
;
300 dst
[i
][2] = (rowA
[j
][2] + rowA
[k
][2] +
301 rowB
[j
][2] + rowB
[k
][2]) * 0.25F
;
302 dst
[i
][3] = (rowA
[j
][3] + rowA
[k
][3] +
303 rowB
[j
][3] + rowB
[k
][3]) * 0.25F
;
306 else if (datatype
== DTYPE_FLOAT
&& comps
== 3) {
308 const float(*rowA
)[3] = (const float(*)[3]) srcRowA
;
309 const float(*rowB
)[3] = (const float(*)[3]) srcRowB
;
310 float(*dst
)[3] = (float(*)[3]) dstRow
;
311 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
312 i
++, j
+= colStride
, k
+= colStride
) {
313 dst
[i
][0] = (rowA
[j
][0] + rowA
[k
][0] +
314 rowB
[j
][0] + rowB
[k
][0]) * 0.25F
;
315 dst
[i
][1] = (rowA
[j
][1] + rowA
[k
][1] +
316 rowB
[j
][1] + rowB
[k
][1]) * 0.25F
;
317 dst
[i
][2] = (rowA
[j
][2] + rowA
[k
][2] +
318 rowB
[j
][2] + rowB
[k
][2]) * 0.25F
;
321 else if (datatype
== DTYPE_FLOAT
&& comps
== 2) {
323 const float(*rowA
)[2] = (const float(*)[2]) srcRowA
;
324 const float(*rowB
)[2] = (const float(*)[2]) srcRowB
;
325 float(*dst
)[2] = (float(*)[2]) dstRow
;
326 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
327 i
++, j
+= colStride
, k
+= colStride
) {
328 dst
[i
][0] = (rowA
[j
][0] + rowA
[k
][0] +
329 rowB
[j
][0] + rowB
[k
][0]) * 0.25F
;
330 dst
[i
][1] = (rowA
[j
][1] + rowA
[k
][1] +
331 rowB
[j
][1] + rowB
[k
][1]) * 0.25F
;
334 else if (datatype
== DTYPE_FLOAT
&& comps
== 1) {
336 const float *rowA
= (const float *) srcRowA
;
337 const float *rowB
= (const float *) srcRowB
;
338 float *dst
= (float *) dstRow
;
339 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
340 i
++, j
+= colStride
, k
+= colStride
) {
341 dst
[i
] = (rowA
[j
] + rowA
[k
] + rowB
[j
] + rowB
[k
]) * 0.25F
;
346 else if (datatype
== HALF_DTYPE_FLOAT
&& comps
== 4) {
348 const half_float(*rowA
)[4] = (const half_float(*)[4]) srcRowA
;
349 const half_float(*rowB
)[4] = (const half_float(*)[4]) srcRowB
;
350 half_float(*dst
)[4] = (half_float(*)[4]) dstRow
;
351 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
352 i
++, j
+= colStride
, k
+= colStride
) {
353 for (comp
= 0; comp
< 4; comp
++) {
354 float aj
, ak
, bj
, bk
;
355 aj
= half_to_float(rowA
[j
][comp
]);
356 ak
= half_to_float(rowA
[k
][comp
]);
357 bj
= half_to_float(rowB
[j
][comp
]);
358 bk
= half_to_float(rowB
[k
][comp
]);
359 dst
[i
][comp
] = float_to_half((aj
+ ak
+ bj
+ bk
) * 0.25F
);
363 else if (datatype
== DTYPE_HALF_FLOAT
&& comps
== 3) {
365 const half_float(*rowA
)[3] = (const half_float(*)[3]) srcRowA
;
366 const half_float(*rowB
)[3] = (const half_float(*)[3]) srcRowB
;
367 half_float(*dst
)[3] = (half_float(*)[3]) dstRow
;
368 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
369 i
++, j
+= colStride
, k
+= colStride
) {
370 for (comp
= 0; comp
< 3; comp
++) {
371 float aj
, ak
, bj
, bk
;
372 aj
= half_to_float(rowA
[j
][comp
]);
373 ak
= half_to_float(rowA
[k
][comp
]);
374 bj
= half_to_float(rowB
[j
][comp
]);
375 bk
= half_to_float(rowB
[k
][comp
]);
376 dst
[i
][comp
] = float_to_half((aj
+ ak
+ bj
+ bk
) * 0.25F
);
380 else if (datatype
== DTYPE_HALF_FLOAT
&& comps
== 2) {
382 const half_float(*rowA
)[2] = (const half_float(*)[2]) srcRowA
;
383 const half_float(*rowB
)[2] = (const half_float(*)[2]) srcRowB
;
384 half_float(*dst
)[2] = (half_float(*)[2]) dstRow
;
385 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
386 i
++, j
+= colStride
, k
+= colStride
) {
387 for (comp
= 0; comp
< 2; comp
++) {
388 float aj
, ak
, bj
, bk
;
389 aj
= half_to_float(rowA
[j
][comp
]);
390 ak
= half_to_float(rowA
[k
][comp
]);
391 bj
= half_to_float(rowB
[j
][comp
]);
392 bk
= half_to_float(rowB
[k
][comp
]);
393 dst
[i
][comp
] = float_to_half((aj
+ ak
+ bj
+ bk
) * 0.25F
);
397 else if (datatype
== DTYPE_HALF_FLOAT
&& comps
== 1) {
399 const half_float
*rowA
= (const half_float
*) srcRowA
;
400 const half_float
*rowB
= (const half_float
*) srcRowB
;
401 half_float
*dst
= (half_float
*) dstRow
;
402 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
403 i
++, j
+= colStride
, k
+= colStride
) {
404 float aj
, ak
, bj
, bk
;
405 aj
= half_to_float(rowA
[j
]);
406 ak
= half_to_float(rowA
[k
]);
407 bj
= half_to_float(rowB
[j
]);
408 bk
= half_to_float(rowB
[k
]);
409 dst
[i
] = float_to_half((aj
+ ak
+ bj
+ bk
) * 0.25F
);
414 else if (datatype
== DTYPE_UINT
&& comps
== 1) {
416 const uint
*rowA
= (const uint
*) srcRowA
;
417 const uint
*rowB
= (const uint
*) srcRowB
;
418 uint
*dst
= (uint
*) dstRow
;
419 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
420 i
++, j
+= colStride
, k
+= colStride
) {
421 dst
[i
] = rowA
[j
] / 4 + rowA
[k
] / 4 + rowB
[j
] / 4 + rowB
[k
] / 4;
425 else if (datatype
== DTYPE_USHORT_5_6_5
&& comps
== 3) {
427 const ushort
*rowA
= (const ushort
*) srcRowA
;
428 const ushort
*rowB
= (const ushort
*) srcRowB
;
429 ushort
*dst
= (ushort
*) dstRow
;
430 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
431 i
++, j
+= colStride
, k
+= colStride
) {
432 const int rowAr0
= rowA
[j
] & 0x1f;
433 const int rowAr1
= rowA
[k
] & 0x1f;
434 const int rowBr0
= rowB
[j
] & 0x1f;
435 const int rowBr1
= rowB
[k
] & 0x1f;
436 const int rowAg0
= (rowA
[j
] >> 5) & 0x3f;
437 const int rowAg1
= (rowA
[k
] >> 5) & 0x3f;
438 const int rowBg0
= (rowB
[j
] >> 5) & 0x3f;
439 const int rowBg1
= (rowB
[k
] >> 5) & 0x3f;
440 const int rowAb0
= (rowA
[j
] >> 11) & 0x1f;
441 const int rowAb1
= (rowA
[k
] >> 11) & 0x1f;
442 const int rowBb0
= (rowB
[j
] >> 11) & 0x1f;
443 const int rowBb1
= (rowB
[k
] >> 11) & 0x1f;
444 const int red
= (rowAr0
+ rowAr1
+ rowBr0
+ rowBr1
) >> 2;
445 const int green
= (rowAg0
+ rowAg1
+ rowBg0
+ rowBg1
) >> 2;
446 const int blue
= (rowAb0
+ rowAb1
+ rowBb0
+ rowBb1
) >> 2;
447 dst
[i
] = (blue
<< 11) | (green
<< 5) | red
;
450 else if (datatype
== DTYPE_USHORT_4_4_4_4
&& comps
== 4) {
452 const ushort
*rowA
= (const ushort
*) srcRowA
;
453 const ushort
*rowB
= (const ushort
*) srcRowB
;
454 ushort
*dst
= (ushort
*) dstRow
;
455 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
456 i
++, j
+= colStride
, k
+= colStride
) {
457 const int rowAr0
= rowA
[j
] & 0xf;
458 const int rowAr1
= rowA
[k
] & 0xf;
459 const int rowBr0
= rowB
[j
] & 0xf;
460 const int rowBr1
= rowB
[k
] & 0xf;
461 const int rowAg0
= (rowA
[j
] >> 4) & 0xf;
462 const int rowAg1
= (rowA
[k
] >> 4) & 0xf;
463 const int rowBg0
= (rowB
[j
] >> 4) & 0xf;
464 const int rowBg1
= (rowB
[k
] >> 4) & 0xf;
465 const int rowAb0
= (rowA
[j
] >> 8) & 0xf;
466 const int rowAb1
= (rowA
[k
] >> 8) & 0xf;
467 const int rowBb0
= (rowB
[j
] >> 8) & 0xf;
468 const int rowBb1
= (rowB
[k
] >> 8) & 0xf;
469 const int rowAa0
= (rowA
[j
] >> 12) & 0xf;
470 const int rowAa1
= (rowA
[k
] >> 12) & 0xf;
471 const int rowBa0
= (rowB
[j
] >> 12) & 0xf;
472 const int rowBa1
= (rowB
[k
] >> 12) & 0xf;
473 const int red
= (rowAr0
+ rowAr1
+ rowBr0
+ rowBr1
) >> 2;
474 const int green
= (rowAg0
+ rowAg1
+ rowBg0
+ rowBg1
) >> 2;
475 const int blue
= (rowAb0
+ rowAb1
+ rowBb0
+ rowBb1
) >> 2;
476 const int alpha
= (rowAa0
+ rowAa1
+ rowBa0
+ rowBa1
) >> 2;
477 dst
[i
] = (alpha
<< 12) | (blue
<< 8) | (green
<< 4) | red
;
480 else if (datatype
== DTYPE_USHORT_1_5_5_5_REV
&& comps
== 4) {
482 const ushort
*rowA
= (const ushort
*) srcRowA
;
483 const ushort
*rowB
= (const ushort
*) srcRowB
;
484 ushort
*dst
= (ushort
*) dstRow
;
485 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
486 i
++, j
+= colStride
, k
+= colStride
) {
487 const int rowAr0
= rowA
[j
] & 0x1f;
488 const int rowAr1
= rowA
[k
] & 0x1f;
489 const int rowBr0
= rowB
[j
] & 0x1f;
490 const int rowBr1
= rowB
[k
] & 0x1f;
491 const int rowAg0
= (rowA
[j
] >> 5) & 0x1f;
492 const int rowAg1
= (rowA
[k
] >> 5) & 0x1f;
493 const int rowBg0
= (rowB
[j
] >> 5) & 0x1f;
494 const int rowBg1
= (rowB
[k
] >> 5) & 0x1f;
495 const int rowAb0
= (rowA
[j
] >> 10) & 0x1f;
496 const int rowAb1
= (rowA
[k
] >> 10) & 0x1f;
497 const int rowBb0
= (rowB
[j
] >> 10) & 0x1f;
498 const int rowBb1
= (rowB
[k
] >> 10) & 0x1f;
499 const int rowAa0
= (rowA
[j
] >> 15) & 0x1;
500 const int rowAa1
= (rowA
[k
] >> 15) & 0x1;
501 const int rowBa0
= (rowB
[j
] >> 15) & 0x1;
502 const int rowBa1
= (rowB
[k
] >> 15) & 0x1;
503 const int red
= (rowAr0
+ rowAr1
+ rowBr0
+ rowBr1
) >> 2;
504 const int green
= (rowAg0
+ rowAg1
+ rowBg0
+ rowBg1
) >> 2;
505 const int blue
= (rowAb0
+ rowAb1
+ rowBb0
+ rowBb1
) >> 2;
506 const int alpha
= (rowAa0
+ rowAa1
+ rowBa0
+ rowBa1
) >> 2;
507 dst
[i
] = (alpha
<< 15) | (blue
<< 10) | (green
<< 5) | red
;
510 else if (datatype
== DTYPE_UBYTE_3_3_2
&& comps
== 3) {
512 const ubyte
*rowA
= (const ubyte
*) srcRowA
;
513 const ubyte
*rowB
= (const ubyte
*) srcRowB
;
514 ubyte
*dst
= (ubyte
*) dstRow
;
515 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
516 i
++, j
+= colStride
, k
+= colStride
) {
517 const int rowAr0
= rowA
[j
] & 0x3;
518 const int rowAr1
= rowA
[k
] & 0x3;
519 const int rowBr0
= rowB
[j
] & 0x3;
520 const int rowBr1
= rowB
[k
] & 0x3;
521 const int rowAg0
= (rowA
[j
] >> 2) & 0x7;
522 const int rowAg1
= (rowA
[k
] >> 2) & 0x7;
523 const int rowBg0
= (rowB
[j
] >> 2) & 0x7;
524 const int rowBg1
= (rowB
[k
] >> 2) & 0x7;
525 const int rowAb0
= (rowA
[j
] >> 5) & 0x7;
526 const int rowAb1
= (rowA
[k
] >> 5) & 0x7;
527 const int rowBb0
= (rowB
[j
] >> 5) & 0x7;
528 const int rowBb1
= (rowB
[k
] >> 5) & 0x7;
529 const int red
= (rowAr0
+ rowAr1
+ rowBr0
+ rowBr1
) >> 2;
530 const int green
= (rowAg0
+ rowAg1
+ rowBg0
+ rowBg1
) >> 2;
531 const int blue
= (rowAb0
+ rowAb1
+ rowBb0
+ rowBb1
) >> 2;
532 dst
[i
] = (blue
<< 5) | (green
<< 2) | red
;
536 debug_printf("bad format in do_row()");
542 * Average together four rows of a source image to produce a single new
543 * row in the dest image. It's legal for the two source rows to point
544 * to the same data. The source width must be equal to either the
545 * dest width or two times the dest width.
547 * \param datatype GL pixel type \c GL_UNSIGNED_BYTE, \c GL_UNSIGNED_SHORT,
549 * \param comps number of components per pixel (1..4)
550 * \param srcWidth Width of a row in the source data
551 * \param srcRowA Pointer to one of the rows of source data
552 * \param srcRowB Pointer to one of the rows of source data
553 * \param srcRowC Pointer to one of the rows of source data
554 * \param srcRowD Pointer to one of the rows of source data
555 * \param dstWidth Width of a row in the destination data
556 * \param srcRowA Pointer to the row of destination data
559 do_row_3D(enum dtype datatype
, uint comps
, int srcWidth
,
560 const void *srcRowA
, const void *srcRowB
,
561 const void *srcRowC
, const void *srcRowD
,
562 int dstWidth
, void *dstRow
)
564 const uint k0
= (srcWidth
== dstWidth
) ? 0 : 1;
565 const uint colStride
= (srcWidth
== dstWidth
) ? 1 : 2;
571 if ((datatype
== DTYPE_UBYTE
) && (comps
== 4)) {
572 DECLARE_ROW_POINTERS(ubyte
, 4);
574 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
575 i
++, j
+= colStride
, k
+= colStride
) {
582 else if ((datatype
== DTYPE_UBYTE
) && (comps
== 3)) {
583 DECLARE_ROW_POINTERS(ubyte
, 3);
585 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
586 i
++, j
+= colStride
, k
+= colStride
) {
592 else if ((datatype
== DTYPE_UBYTE
) && (comps
== 2)) {
593 DECLARE_ROW_POINTERS(ubyte
, 2);
595 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
596 i
++, j
+= colStride
, k
+= colStride
) {
601 else if ((datatype
== DTYPE_UBYTE
) && (comps
== 1)) {
602 DECLARE_ROW_POINTERS(ubyte
, 1);
604 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
605 i
++, j
+= colStride
, k
+= colStride
) {
609 else if ((datatype
== DTYPE_USHORT
) && (comps
== 4)) {
610 DECLARE_ROW_POINTERS(ushort
, 4);
612 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
613 i
++, j
+= colStride
, k
+= colStride
) {
620 else if ((datatype
== DTYPE_USHORT
) && (comps
== 3)) {
621 DECLARE_ROW_POINTERS(ushort
, 3);
623 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
624 i
++, j
+= colStride
, k
+= colStride
) {
630 else if ((datatype
== DTYPE_USHORT
) && (comps
== 2)) {
631 DECLARE_ROW_POINTERS(ushort
, 2);
633 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
634 i
++, j
+= colStride
, k
+= colStride
) {
639 else if ((datatype
== DTYPE_USHORT
) && (comps
== 1)) {
640 DECLARE_ROW_POINTERS(ushort
, 1);
642 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
643 i
++, j
+= colStride
, k
+= colStride
) {
647 else if ((datatype
== DTYPE_FLOAT
) && (comps
== 4)) {
648 DECLARE_ROW_POINTERS(float, 4);
650 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
651 i
++, j
+= colStride
, k
+= colStride
) {
658 else if ((datatype
== DTYPE_FLOAT
) && (comps
== 3)) {
659 DECLARE_ROW_POINTERS(float, 3);
661 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
662 i
++, j
+= colStride
, k
+= colStride
) {
668 else if ((datatype
== DTYPE_FLOAT
) && (comps
== 2)) {
669 DECLARE_ROW_POINTERS(float, 2);
671 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
672 i
++, j
+= colStride
, k
+= colStride
) {
677 else if ((datatype
== DTYPE_FLOAT
) && (comps
== 1)) {
678 DECLARE_ROW_POINTERS(float, 1);
680 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
681 i
++, j
+= colStride
, k
+= colStride
) {
685 else if ((datatype
== DTYPE_HALF_FLOAT
) && (comps
== 4)) {
686 DECLARE_ROW_POINTERS(half_float
, 4);
688 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
689 i
++, j
+= colStride
, k
+= colStride
) {
696 else if ((datatype
== DTYPE_HALF_FLOAT
) && (comps
== 3)) {
697 DECLARE_ROW_POINTERS(half_float
, 4);
699 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
700 i
++, j
+= colStride
, k
+= colStride
) {
706 else if ((datatype
== DTYPE_HALF_FLOAT
) && (comps
== 2)) {
707 DECLARE_ROW_POINTERS(half_float
, 4);
709 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
710 i
++, j
+= colStride
, k
+= colStride
) {
715 else if ((datatype
== DTYPE_HALF_FLOAT
) && (comps
== 1)) {
716 DECLARE_ROW_POINTERS(half_float
, 4);
718 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
719 i
++, j
+= colStride
, k
+= colStride
) {
723 else if ((datatype
== DTYPE_UINT
) && (comps
== 1)) {
724 const uint
*rowA
= (const uint
*) srcRowA
;
725 const uint
*rowB
= (const uint
*) srcRowB
;
726 const uint
*rowC
= (const uint
*) srcRowC
;
727 const uint
*rowD
= (const uint
*) srcRowD
;
728 float *dst
= (float *) dstRow
;
730 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
731 i
++, j
+= colStride
, k
+= colStride
) {
732 const uint64_t tmp
= (((uint64_t) rowA
[j
] + (uint64_t) rowA
[k
])
733 + ((uint64_t) rowB
[j
] + (uint64_t) rowB
[k
])
734 + ((uint64_t) rowC
[j
] + (uint64_t) rowC
[k
])
735 + ((uint64_t) rowD
[j
] + (uint64_t) rowD
[k
]));
736 dst
[i
] = (float)((double) tmp
* 0.125);
739 else if ((datatype
== DTYPE_USHORT_5_6_5
) && (comps
== 3)) {
740 DECLARE_ROW_POINTERS0(ushort
);
742 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
743 i
++, j
+= colStride
, k
+= colStride
) {
744 const int rowAr0
= rowA
[j
] & 0x1f;
745 const int rowAr1
= rowA
[k
] & 0x1f;
746 const int rowBr0
= rowB
[j
] & 0x1f;
747 const int rowBr1
= rowB
[k
] & 0x1f;
748 const int rowCr0
= rowC
[j
] & 0x1f;
749 const int rowCr1
= rowC
[k
] & 0x1f;
750 const int rowDr0
= rowD
[j
] & 0x1f;
751 const int rowDr1
= rowD
[k
] & 0x1f;
752 const int rowAg0
= (rowA
[j
] >> 5) & 0x3f;
753 const int rowAg1
= (rowA
[k
] >> 5) & 0x3f;
754 const int rowBg0
= (rowB
[j
] >> 5) & 0x3f;
755 const int rowBg1
= (rowB
[k
] >> 5) & 0x3f;
756 const int rowCg0
= (rowC
[j
] >> 5) & 0x3f;
757 const int rowCg1
= (rowC
[k
] >> 5) & 0x3f;
758 const int rowDg0
= (rowD
[j
] >> 5) & 0x3f;
759 const int rowDg1
= (rowD
[k
] >> 5) & 0x3f;
760 const int rowAb0
= (rowA
[j
] >> 11) & 0x1f;
761 const int rowAb1
= (rowA
[k
] >> 11) & 0x1f;
762 const int rowBb0
= (rowB
[j
] >> 11) & 0x1f;
763 const int rowBb1
= (rowB
[k
] >> 11) & 0x1f;
764 const int rowCb0
= (rowC
[j
] >> 11) & 0x1f;
765 const int rowCb1
= (rowC
[k
] >> 11) & 0x1f;
766 const int rowDb0
= (rowD
[j
] >> 11) & 0x1f;
767 const int rowDb1
= (rowD
[k
] >> 11) & 0x1f;
768 const int r
= FILTER_SUM_3D(rowAr0
, rowAr1
, rowBr0
, rowBr1
,
769 rowCr0
, rowCr1
, rowDr0
, rowDr1
);
770 const int g
= FILTER_SUM_3D(rowAg0
, rowAg1
, rowBg0
, rowBg1
,
771 rowCg0
, rowCg1
, rowDg0
, rowDg1
);
772 const int b
= FILTER_SUM_3D(rowAb0
, rowAb1
, rowBb0
, rowBb1
,
773 rowCb0
, rowCb1
, rowDb0
, rowDb1
);
774 dst
[i
] = (b
<< 11) | (g
<< 5) | r
;
777 else if ((datatype
== DTYPE_USHORT_4_4_4_4
) && (comps
== 4)) {
778 DECLARE_ROW_POINTERS0(ushort
);
780 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
781 i
++, j
+= colStride
, k
+= colStride
) {
782 const int rowAr0
= rowA
[j
] & 0xf;
783 const int rowAr1
= rowA
[k
] & 0xf;
784 const int rowBr0
= rowB
[j
] & 0xf;
785 const int rowBr1
= rowB
[k
] & 0xf;
786 const int rowCr0
= rowC
[j
] & 0xf;
787 const int rowCr1
= rowC
[k
] & 0xf;
788 const int rowDr0
= rowD
[j
] & 0xf;
789 const int rowDr1
= rowD
[k
] & 0xf;
790 const int rowAg0
= (rowA
[j
] >> 4) & 0xf;
791 const int rowAg1
= (rowA
[k
] >> 4) & 0xf;
792 const int rowBg0
= (rowB
[j
] >> 4) & 0xf;
793 const int rowBg1
= (rowB
[k
] >> 4) & 0xf;
794 const int rowCg0
= (rowC
[j
] >> 4) & 0xf;
795 const int rowCg1
= (rowC
[k
] >> 4) & 0xf;
796 const int rowDg0
= (rowD
[j
] >> 4) & 0xf;
797 const int rowDg1
= (rowD
[k
] >> 4) & 0xf;
798 const int rowAb0
= (rowA
[j
] >> 8) & 0xf;
799 const int rowAb1
= (rowA
[k
] >> 8) & 0xf;
800 const int rowBb0
= (rowB
[j
] >> 8) & 0xf;
801 const int rowBb1
= (rowB
[k
] >> 8) & 0xf;
802 const int rowCb0
= (rowC
[j
] >> 8) & 0xf;
803 const int rowCb1
= (rowC
[k
] >> 8) & 0xf;
804 const int rowDb0
= (rowD
[j
] >> 8) & 0xf;
805 const int rowDb1
= (rowD
[k
] >> 8) & 0xf;
806 const int rowAa0
= (rowA
[j
] >> 12) & 0xf;
807 const int rowAa1
= (rowA
[k
] >> 12) & 0xf;
808 const int rowBa0
= (rowB
[j
] >> 12) & 0xf;
809 const int rowBa1
= (rowB
[k
] >> 12) & 0xf;
810 const int rowCa0
= (rowC
[j
] >> 12) & 0xf;
811 const int rowCa1
= (rowC
[k
] >> 12) & 0xf;
812 const int rowDa0
= (rowD
[j
] >> 12) & 0xf;
813 const int rowDa1
= (rowD
[k
] >> 12) & 0xf;
814 const int r
= FILTER_SUM_3D(rowAr0
, rowAr1
, rowBr0
, rowBr1
,
815 rowCr0
, rowCr1
, rowDr0
, rowDr1
);
816 const int g
= FILTER_SUM_3D(rowAg0
, rowAg1
, rowBg0
, rowBg1
,
817 rowCg0
, rowCg1
, rowDg0
, rowDg1
);
818 const int b
= FILTER_SUM_3D(rowAb0
, rowAb1
, rowBb0
, rowBb1
,
819 rowCb0
, rowCb1
, rowDb0
, rowDb1
);
820 const int a
= FILTER_SUM_3D(rowAa0
, rowAa1
, rowBa0
, rowBa1
,
821 rowCa0
, rowCa1
, rowDa0
, rowDa1
);
823 dst
[i
] = (a
<< 12) | (b
<< 8) | (g
<< 4) | r
;
826 else if ((datatype
== DTYPE_USHORT_1_5_5_5_REV
) && (comps
== 4)) {
827 DECLARE_ROW_POINTERS0(ushort
);
829 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
830 i
++, j
+= colStride
, k
+= colStride
) {
831 const int rowAr0
= rowA
[j
] & 0x1f;
832 const int rowAr1
= rowA
[k
] & 0x1f;
833 const int rowBr0
= rowB
[j
] & 0x1f;
834 const int rowBr1
= rowB
[k
] & 0x1f;
835 const int rowCr0
= rowC
[j
] & 0x1f;
836 const int rowCr1
= rowC
[k
] & 0x1f;
837 const int rowDr0
= rowD
[j
] & 0x1f;
838 const int rowDr1
= rowD
[k
] & 0x1f;
839 const int rowAg0
= (rowA
[j
] >> 5) & 0x1f;
840 const int rowAg1
= (rowA
[k
] >> 5) & 0x1f;
841 const int rowBg0
= (rowB
[j
] >> 5) & 0x1f;
842 const int rowBg1
= (rowB
[k
] >> 5) & 0x1f;
843 const int rowCg0
= (rowC
[j
] >> 5) & 0x1f;
844 const int rowCg1
= (rowC
[k
] >> 5) & 0x1f;
845 const int rowDg0
= (rowD
[j
] >> 5) & 0x1f;
846 const int rowDg1
= (rowD
[k
] >> 5) & 0x1f;
847 const int rowAb0
= (rowA
[j
] >> 10) & 0x1f;
848 const int rowAb1
= (rowA
[k
] >> 10) & 0x1f;
849 const int rowBb0
= (rowB
[j
] >> 10) & 0x1f;
850 const int rowBb1
= (rowB
[k
] >> 10) & 0x1f;
851 const int rowCb0
= (rowC
[j
] >> 10) & 0x1f;
852 const int rowCb1
= (rowC
[k
] >> 10) & 0x1f;
853 const int rowDb0
= (rowD
[j
] >> 10) & 0x1f;
854 const int rowDb1
= (rowD
[k
] >> 10) & 0x1f;
855 const int rowAa0
= (rowA
[j
] >> 15) & 0x1;
856 const int rowAa1
= (rowA
[k
] >> 15) & 0x1;
857 const int rowBa0
= (rowB
[j
] >> 15) & 0x1;
858 const int rowBa1
= (rowB
[k
] >> 15) & 0x1;
859 const int rowCa0
= (rowC
[j
] >> 15) & 0x1;
860 const int rowCa1
= (rowC
[k
] >> 15) & 0x1;
861 const int rowDa0
= (rowD
[j
] >> 15) & 0x1;
862 const int rowDa1
= (rowD
[k
] >> 15) & 0x1;
863 const int r
= FILTER_SUM_3D(rowAr0
, rowAr1
, rowBr0
, rowBr1
,
864 rowCr0
, rowCr1
, rowDr0
, rowDr1
);
865 const int g
= FILTER_SUM_3D(rowAg0
, rowAg1
, rowBg0
, rowBg1
,
866 rowCg0
, rowCg1
, rowDg0
, rowDg1
);
867 const int b
= FILTER_SUM_3D(rowAb0
, rowAb1
, rowBb0
, rowBb1
,
868 rowCb0
, rowCb1
, rowDb0
, rowDb1
);
869 const int a
= FILTER_SUM_3D(rowAa0
, rowAa1
, rowBa0
, rowBa1
,
870 rowCa0
, rowCa1
, rowDa0
, rowDa1
);
872 dst
[i
] = (a
<< 15) | (b
<< 10) | (g
<< 5) | r
;
875 else if ((datatype
== DTYPE_UBYTE_3_3_2
) && (comps
== 3)) {
876 DECLARE_ROW_POINTERS0(ushort
);
878 for (i
= j
= 0, k
= k0
; i
< (uint
) dstWidth
;
879 i
++, j
+= colStride
, k
+= colStride
) {
880 const int rowAr0
= rowA
[j
] & 0x3;
881 const int rowAr1
= rowA
[k
] & 0x3;
882 const int rowBr0
= rowB
[j
] & 0x3;
883 const int rowBr1
= rowB
[k
] & 0x3;
884 const int rowCr0
= rowC
[j
] & 0x3;
885 const int rowCr1
= rowC
[k
] & 0x3;
886 const int rowDr0
= rowD
[j
] & 0x3;
887 const int rowDr1
= rowD
[k
] & 0x3;
888 const int rowAg0
= (rowA
[j
] >> 2) & 0x7;
889 const int rowAg1
= (rowA
[k
] >> 2) & 0x7;
890 const int rowBg0
= (rowB
[j
] >> 2) & 0x7;
891 const int rowBg1
= (rowB
[k
] >> 2) & 0x7;
892 const int rowCg0
= (rowC
[j
] >> 2) & 0x7;
893 const int rowCg1
= (rowC
[k
] >> 2) & 0x7;
894 const int rowDg0
= (rowD
[j
] >> 2) & 0x7;
895 const int rowDg1
= (rowD
[k
] >> 2) & 0x7;
896 const int rowAb0
= (rowA
[j
] >> 5) & 0x7;
897 const int rowAb1
= (rowA
[k
] >> 5) & 0x7;
898 const int rowBb0
= (rowB
[j
] >> 5) & 0x7;
899 const int rowBb1
= (rowB
[k
] >> 5) & 0x7;
900 const int rowCb0
= (rowC
[j
] >> 5) & 0x7;
901 const int rowCb1
= (rowC
[k
] >> 5) & 0x7;
902 const int rowDb0
= (rowD
[j
] >> 5) & 0x7;
903 const int rowDb1
= (rowD
[k
] >> 5) & 0x7;
904 const int r
= FILTER_SUM_3D(rowAr0
, rowAr1
, rowBr0
, rowBr1
,
905 rowCr0
, rowCr1
, rowDr0
, rowDr1
);
906 const int g
= FILTER_SUM_3D(rowAg0
, rowAg1
, rowBg0
, rowBg1
,
907 rowCg0
, rowCg1
, rowDg0
, rowDg1
);
908 const int b
= FILTER_SUM_3D(rowAb0
, rowAb1
, rowBb0
, rowBb1
,
909 rowCb0
, rowCb1
, rowDb0
, rowDb1
);
910 dst
[i
] = (b
<< 5) | (g
<< 2) | r
;
914 debug_printf("bad format in do_row_3D()");
921 format_to_type_comps(enum pipe_format pformat
,
922 enum dtype
*datatype
, uint
*comps
)
925 case PIPE_FORMAT_A8R8G8B8_UNORM
:
926 case PIPE_FORMAT_X8R8G8B8_UNORM
:
927 case PIPE_FORMAT_B8G8R8A8_UNORM
:
928 case PIPE_FORMAT_B8G8R8X8_UNORM
:
929 *datatype
= DTYPE_UBYTE
;
932 case PIPE_FORMAT_A1R5G5B5_UNORM
:
933 *datatype
= DTYPE_USHORT_1_5_5_5_REV
;
936 case PIPE_FORMAT_A4R4G4B4_UNORM
:
937 *datatype
= DTYPE_USHORT_4_4_4_4
;
940 case PIPE_FORMAT_R5G6B5_UNORM
:
941 *datatype
= DTYPE_USHORT_5_6_5
;
944 case PIPE_FORMAT_L8_UNORM
:
945 case PIPE_FORMAT_A8_UNORM
:
946 case PIPE_FORMAT_I8_UNORM
:
947 *datatype
= DTYPE_UBYTE
;
950 case PIPE_FORMAT_A8L8_UNORM
:
951 *datatype
= DTYPE_UBYTE
;
956 *datatype
= DTYPE_UBYTE
;
964 reduce_1d(enum pipe_format pformat
,
965 int srcWidth
, const ubyte
*srcPtr
,
966 int dstWidth
, ubyte
*dstPtr
)
971 format_to_type_comps(pformat
, &datatype
, &comps
);
973 /* we just duplicate the input row, kind of hack, saves code */
974 do_row(datatype
, comps
,
975 srcWidth
, srcPtr
, srcPtr
,
981 * Strides are in bytes. If zero, it'll be computed as width * bpp.
984 reduce_2d(enum pipe_format pformat
,
985 int srcWidth
, int srcHeight
,
986 int srcRowStride
, const ubyte
*srcPtr
,
987 int dstWidth
, int dstHeight
,
988 int dstRowStride
, ubyte
*dstPtr
)
992 const int bpt
= pf_get_size(pformat
);
993 const ubyte
*srcA
, *srcB
;
997 format_to_type_comps(pformat
, &datatype
, &comps
);
1000 srcRowStride
= bpt
* srcWidth
;
1003 dstRowStride
= bpt
* dstWidth
;
1005 /* Compute src and dst pointers */
1008 srcB
= srcA
+ srcRowStride
;
1013 for (row
= 0; row
< dstHeight
; row
++) {
1014 do_row(datatype
, comps
,
1015 srcWidth
, srcA
, srcB
,
1017 srcA
+= 2 * srcRowStride
;
1018 srcB
+= 2 * srcRowStride
;
1019 dst
+= dstRowStride
;
1025 reduce_3d(enum pipe_format pformat
,
1026 int srcWidth
, int srcHeight
, int srcDepth
,
1027 int srcRowStride
, const ubyte
*srcPtr
,
1028 int dstWidth
, int dstHeight
, int dstDepth
,
1029 int dstRowStride
, ubyte
*dstPtr
)
1031 const int bpt
= pf_get_size(pformat
);
1032 const int border
= 0;
1034 int bytesPerSrcImage
, bytesPerDstImage
;
1035 int bytesPerSrcRow
, bytesPerDstRow
;
1036 int srcImageOffset
, srcRowOffset
;
1037 enum dtype datatype
;
1040 format_to_type_comps(pformat
, &datatype
, &comps
);
1042 bytesPerSrcImage
= srcWidth
* srcHeight
* bpt
;
1043 bytesPerDstImage
= dstWidth
* dstHeight
* bpt
;
1045 bytesPerSrcRow
= srcWidth
* bpt
;
1046 bytesPerDstRow
= dstWidth
* bpt
;
1048 /* Offset between adjacent src images to be averaged together */
1049 srcImageOffset
= (srcDepth
== dstDepth
) ? 0 : bytesPerSrcImage
;
1051 /* Offset between adjacent src rows to be averaged together */
1052 srcRowOffset
= (srcHeight
== dstHeight
) ? 0 : srcWidth
* bpt
;
1055 * Need to average together up to 8 src pixels for each dest pixel.
1056 * Break that down into 3 operations:
1057 * 1. take two rows from source image and average them together.
1058 * 2. take two rows from next source image and average them together.
1059 * 3. take the two averaged rows and average them for the final dst row.
1063 _mesa_printf("mip3d %d x %d x %d -> %d x %d x %d\n",
1064 srcWidth, srcHeight, srcDepth, dstWidth, dstHeight, dstDepth);
1067 for (img
= 0; img
< dstDepth
; img
++) {
1068 /* first source image pointer, skipping border */
1069 const ubyte
*imgSrcA
= srcPtr
1070 + (bytesPerSrcImage
+ bytesPerSrcRow
+ border
) * bpt
* border
1071 + img
* (bytesPerSrcImage
+ srcImageOffset
);
1072 /* second source image pointer, skipping border */
1073 const ubyte
*imgSrcB
= imgSrcA
+ srcImageOffset
;
1074 /* address of the dest image, skipping border */
1075 ubyte
*imgDst
= dstPtr
1076 + (bytesPerDstImage
+ bytesPerDstRow
+ border
) * bpt
* border
1077 + img
* bytesPerDstImage
;
1079 /* setup the four source row pointers and the dest row pointer */
1080 const ubyte
*srcImgARowA
= imgSrcA
;
1081 const ubyte
*srcImgARowB
= imgSrcA
+ srcRowOffset
;
1082 const ubyte
*srcImgBRowA
= imgSrcB
;
1083 const ubyte
*srcImgBRowB
= imgSrcB
+ srcRowOffset
;
1084 ubyte
*dstImgRow
= imgDst
;
1086 for (row
= 0; row
< dstHeight
; row
++) {
1087 do_row_3D(datatype
, comps
, srcWidth
,
1088 srcImgARowA
, srcImgARowB
,
1089 srcImgBRowA
, srcImgBRowB
,
1090 dstWidth
, dstImgRow
);
1092 /* advance to next rows */
1093 srcImgARowA
+= bytesPerSrcRow
+ srcRowOffset
;
1094 srcImgARowB
+= bytesPerSrcRow
+ srcRowOffset
;
1095 srcImgBRowA
+= bytesPerSrcRow
+ srcRowOffset
;
1096 srcImgBRowB
+= bytesPerSrcRow
+ srcRowOffset
;
1097 dstImgRow
+= bytesPerDstRow
;
1106 make_1d_mipmap(struct gen_mipmap_state
*ctx
,
1107 struct pipe_texture
*pt
,
1108 uint face
, uint baseLevel
, uint lastLevel
)
1110 struct pipe_context
*pipe
= ctx
->pipe
;
1111 struct pipe_screen
*screen
= pipe
->screen
;
1112 const uint zslice
= 0;
1115 for (dstLevel
= baseLevel
+ 1; dstLevel
<= lastLevel
; dstLevel
++) {
1116 const uint srcLevel
= dstLevel
- 1;
1117 struct pipe_transfer
*srcTrans
, *dstTrans
;
1118 void *srcMap
, *dstMap
;
1120 srcTrans
= screen
->get_tex_transfer(screen
, pt
, face
, srcLevel
, zslice
,
1121 PIPE_TRANSFER_READ
, 0, 0,
1122 pt
->width
[srcLevel
],
1123 pt
->height
[srcLevel
]);
1124 dstTrans
= screen
->get_tex_transfer(screen
, pt
, face
, dstLevel
, zslice
,
1125 PIPE_TRANSFER_WRITE
, 0, 0,
1126 pt
->width
[dstLevel
],
1127 pt
->height
[dstLevel
]);
1129 srcMap
= (ubyte
*) screen
->transfer_map(screen
, srcTrans
);
1130 dstMap
= (ubyte
*) screen
->transfer_map(screen
, dstTrans
);
1132 reduce_1d(pt
->format
,
1133 srcTrans
->width
, srcMap
,
1134 dstTrans
->width
, dstMap
);
1136 screen
->transfer_unmap(screen
, srcTrans
);
1137 screen
->transfer_unmap(screen
, dstTrans
);
1139 screen
->tex_transfer_destroy(srcTrans
);
1140 screen
->tex_transfer_destroy(dstTrans
);
1146 make_2d_mipmap(struct gen_mipmap_state
*ctx
,
1147 struct pipe_texture
*pt
,
1148 uint face
, uint baseLevel
, uint lastLevel
)
1150 struct pipe_context
*pipe
= ctx
->pipe
;
1151 struct pipe_screen
*screen
= pipe
->screen
;
1152 const uint zslice
= 0;
1155 assert(pt
->block
.width
== 1);
1156 assert(pt
->block
.height
== 1);
1158 for (dstLevel
= baseLevel
+ 1; dstLevel
<= lastLevel
; dstLevel
++) {
1159 const uint srcLevel
= dstLevel
- 1;
1160 struct pipe_transfer
*srcTrans
, *dstTrans
;
1161 ubyte
*srcMap
, *dstMap
;
1163 srcTrans
= screen
->get_tex_transfer(screen
, pt
, face
, srcLevel
, zslice
,
1164 PIPE_TRANSFER_READ
, 0, 0,
1165 pt
->width
[srcLevel
],
1166 pt
->height
[srcLevel
]);
1167 dstTrans
= screen
->get_tex_transfer(screen
, pt
, face
, dstLevel
, zslice
,
1168 PIPE_TRANSFER_WRITE
, 0, 0,
1169 pt
->width
[dstLevel
],
1170 pt
->height
[dstLevel
]);
1172 srcMap
= (ubyte
*) screen
->transfer_map(screen
, srcTrans
);
1173 dstMap
= (ubyte
*) screen
->transfer_map(screen
, dstTrans
);
1175 reduce_2d(pt
->format
,
1176 srcTrans
->width
, srcTrans
->height
,
1177 srcTrans
->stride
, srcMap
,
1178 dstTrans
->width
, dstTrans
->height
,
1179 dstTrans
->stride
, dstMap
);
1181 screen
->transfer_unmap(screen
, srcTrans
);
1182 screen
->transfer_unmap(screen
, dstTrans
);
1184 screen
->tex_transfer_destroy(srcTrans
);
1185 screen
->tex_transfer_destroy(dstTrans
);
1191 make_3d_mipmap(struct gen_mipmap_state
*ctx
,
1192 struct pipe_texture
*pt
,
1193 uint face
, uint baseLevel
, uint lastLevel
)
1196 struct pipe_context
*pipe
= ctx
->pipe
;
1197 struct pipe_screen
*screen
= pipe
->screen
;
1198 uint dstLevel
, zslice
= 0;
1200 assert(pt
->block
.width
== 1);
1201 assert(pt
->block
.height
== 1);
1203 for (dstLevel
= baseLevel
+ 1; dstLevel
<= lastLevel
; dstLevel
++) {
1204 const uint srcLevel
= dstLevel
- 1;
1205 struct pipe_transfer
*srcTrans
, *dstTrans
;
1206 ubyte
*srcMap
, *dstMap
;
1208 srcTrans
= screen
->get_tex_transfer(screen
, pt
, face
, srcLevel
, zslice
,
1209 PIPE_TRANSFER_READ
, 0, 0,
1210 pt
->width
[srcLevel
],
1211 pt
->height
[srcLevel
]);
1212 dstTrans
= screen
->get_tex_transfer(screen
, pt
, face
, dstLevel
, zslice
,
1213 PIPE_TRANSFER_WRITE
, 0, 0,
1214 pt
->width
[dstLevel
],
1215 pt
->height
[dstLevel
]);
1217 srcMap
= (ubyte
*) screen
->transfer_map(screen
, srcTrans
);
1218 dstMap
= (ubyte
*) screen
->transfer_map(screen
, dstTrans
);
1220 reduce_3d(pt
->format
,
1221 srcTrans
->width
, srcTrans
->height
,
1222 srcTrans
->stride
, srcMap
,
1223 dstTrans
->width
, dstTrans
->height
,
1224 dstTrans
->stride
, dstMap
);
1226 screen
->transfer_unmap(screen
, srcTrans
);
1227 screen
->transfer_unmap(screen
, dstTrans
);
1229 screen
->tex_transfer_destroy(srcTrans
);
1230 screen
->tex_transfer_destroy(dstTrans
);
1239 fallback_gen_mipmap(struct gen_mipmap_state
*ctx
,
1240 struct pipe_texture
*pt
,
1241 uint face
, uint baseLevel
, uint lastLevel
)
1243 switch (pt
->target
) {
1244 case PIPE_TEXTURE_1D
:
1245 make_1d_mipmap(ctx
, pt
, face
, baseLevel
, lastLevel
);
1247 case PIPE_TEXTURE_2D
:
1248 case PIPE_TEXTURE_CUBE
:
1249 make_2d_mipmap(ctx
, pt
, face
, baseLevel
, lastLevel
);
1251 case PIPE_TEXTURE_3D
:
1252 make_3d_mipmap(ctx
, pt
, face
, baseLevel
, lastLevel
);
1261 * Create a mipmap generation context.
1262 * The idea is to create one of these and re-use it each time we need to
1263 * generate a mipmap.
1265 struct gen_mipmap_state
*
1266 util_create_gen_mipmap(struct pipe_context
*pipe
,
1267 struct cso_context
*cso
)
1269 struct gen_mipmap_state
*ctx
;
1272 ctx
= CALLOC_STRUCT(gen_mipmap_state
);
1279 /* disabled blending/masking */
1280 memset(&ctx
->blend
, 0, sizeof(ctx
->blend
));
1281 ctx
->blend
.colormask
= PIPE_MASK_RGBA
;
1283 /* no-op depth/stencil/alpha */
1284 memset(&ctx
->depthstencil
, 0, sizeof(ctx
->depthstencil
));
1287 memset(&ctx
->rasterizer
, 0, sizeof(ctx
->rasterizer
));
1288 ctx
->rasterizer
.front_winding
= PIPE_WINDING_CW
;
1289 ctx
->rasterizer
.cull_mode
= PIPE_WINDING_NONE
;
1290 ctx
->rasterizer
.bypass_vs_clip_and_viewport
= 1;
1291 ctx
->rasterizer
.gl_rasterization_rules
= 1;
1294 memset(&ctx
->sampler
, 0, sizeof(ctx
->sampler
));
1295 ctx
->sampler
.wrap_s
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
1296 ctx
->sampler
.wrap_t
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
1297 ctx
->sampler
.wrap_r
= PIPE_TEX_WRAP_CLAMP_TO_EDGE
;
1298 ctx
->sampler
.min_mip_filter
= PIPE_TEX_MIPFILTER_NEAREST
;
1299 ctx
->sampler
.normalized_coords
= 1;
1301 /* vertex shader - still needed to specify mapping from fragment
1302 * shader input semantics to vertex elements
1305 const uint semantic_names
[] = { TGSI_SEMANTIC_POSITION
,
1306 TGSI_SEMANTIC_GENERIC
};
1307 const uint semantic_indexes
[] = { 0, 0 };
1308 ctx
->vs
= util_make_vertex_passthrough_shader(pipe
, 2, semantic_names
,
1312 /* fragment shader */
1313 ctx
->fs
= util_make_fragment_tex_shader(pipe
);
1315 /* vertex data that doesn't change */
1316 for (i
= 0; i
< 4; i
++) {
1317 ctx
->vertices
[i
][0][2] = 0.0f
; /* z */
1318 ctx
->vertices
[i
][0][3] = 1.0f
; /* w */
1319 ctx
->vertices
[i
][1][2] = 0.0f
; /* r */
1320 ctx
->vertices
[i
][1][3] = 1.0f
; /* q */
1323 /* Note: the actual vertex buffer is allocated as needed below */
1330 * Get next "slot" of vertex space in the vertex buffer.
1331 * We're allocating one large vertex buffer and using it piece by piece.
1334 get_next_slot(struct gen_mipmap_state
*ctx
)
1336 const unsigned max_slots
= 4096 / sizeof ctx
->vertices
;
1338 if (ctx
->vbuf_slot
>= max_slots
)
1339 util_gen_mipmap_flush( ctx
);
1342 ctx
->vbuf
= pipe_buffer_create(ctx
->pipe
->screen
,
1344 PIPE_BUFFER_USAGE_VERTEX
,
1345 max_slots
* sizeof ctx
->vertices
);
1348 return ctx
->vbuf_slot
++ * sizeof ctx
->vertices
;
1353 set_vertex_data(struct gen_mipmap_state
*ctx
, float width
, float height
)
1357 ctx
->vertices
[0][0][0] = 0.0f
; /*x*/
1358 ctx
->vertices
[0][0][1] = 0.0f
; /*y*/
1359 ctx
->vertices
[0][1][0] = 0.0f
; /*s*/
1360 ctx
->vertices
[0][1][1] = 0.0f
; /*t*/
1362 ctx
->vertices
[1][0][0] = width
;
1363 ctx
->vertices
[1][0][1] = 0.0f
;
1364 ctx
->vertices
[1][1][0] = 1.0f
;
1365 ctx
->vertices
[1][1][1] = 0.0f
;
1367 ctx
->vertices
[2][0][0] = width
;
1368 ctx
->vertices
[2][0][1] = height
;
1369 ctx
->vertices
[2][1][0] = 1.0f
;
1370 ctx
->vertices
[2][1][1] = 1.0f
;
1372 ctx
->vertices
[3][0][0] = 0.0f
;
1373 ctx
->vertices
[3][0][1] = height
;
1374 ctx
->vertices
[3][1][0] = 0.0f
;
1375 ctx
->vertices
[3][1][1] = 1.0f
;
1377 offset
= get_next_slot( ctx
);
1379 pipe_buffer_write(ctx
->pipe
->screen
, ctx
->vbuf
,
1380 offset
, sizeof(ctx
->vertices
), ctx
->vertices
);
1388 * Destroy a mipmap generation context
1391 util_destroy_gen_mipmap(struct gen_mipmap_state
*ctx
)
1393 struct pipe_context
*pipe
= ctx
->pipe
;
1395 pipe
->delete_vs_state(pipe
, ctx
->vs
);
1396 pipe
->delete_fs_state(pipe
, ctx
->fs
);
1398 pipe_buffer_reference(&ctx
->vbuf
, NULL
);
1405 /* Release vertex buffer at end of frame to avoid synchronous
1408 void util_gen_mipmap_flush( struct gen_mipmap_state
*ctx
)
1410 pipe_buffer_reference(&ctx
->vbuf
, NULL
);
1416 * Generate mipmap images. It's assumed all needed texture memory is
1417 * already allocated.
1419 * \param pt the texture to generate mipmap levels for
1420 * \param face which cube face to generate mipmaps for (0 for non-cube maps)
1421 * \param baseLevel the first mipmap level to use as a src
1422 * \param lastLevel the last mipmap level to generate
1423 * \param filter the minification filter used to generate mipmap levels with
1424 * \param filter one of PIPE_TEX_FILTER_LINEAR, PIPE_TEX_FILTER_NEAREST
1427 util_gen_mipmap(struct gen_mipmap_state
*ctx
,
1428 struct pipe_texture
*pt
,
1429 uint face
, uint baseLevel
, uint lastLevel
, uint filter
)
1431 struct pipe_context
*pipe
= ctx
->pipe
;
1432 struct pipe_screen
*screen
= pipe
->screen
;
1433 struct pipe_framebuffer_state fb
;
1438 /* check if we can render in the texture's format */
1439 if (!screen
->is_format_supported(screen
, pt
->format
, PIPE_TEXTURE_2D
,
1440 PIPE_TEXTURE_USAGE_RENDER_TARGET
, 0)) {
1441 fallback_gen_mipmap(ctx
, pt
, face
, baseLevel
, lastLevel
);
1445 /* save state (restored below) */
1446 cso_save_blend(ctx
->cso
);
1447 cso_save_depth_stencil_alpha(ctx
->cso
);
1448 cso_save_rasterizer(ctx
->cso
);
1449 cso_save_samplers(ctx
->cso
);
1450 cso_save_sampler_textures(ctx
->cso
);
1451 cso_save_framebuffer(ctx
->cso
);
1452 cso_save_fragment_shader(ctx
->cso
);
1453 cso_save_vertex_shader(ctx
->cso
);
1455 /* bind our state */
1456 cso_set_blend(ctx
->cso
, &ctx
->blend
);
1457 cso_set_depth_stencil_alpha(ctx
->cso
, &ctx
->depthstencil
);
1458 cso_set_rasterizer(ctx
->cso
, &ctx
->rasterizer
);
1460 cso_set_fragment_shader_handle(ctx
->cso
, ctx
->fs
);
1461 cso_set_vertex_shader_handle(ctx
->cso
, ctx
->vs
);
1463 /* init framebuffer state */
1464 memset(&fb
, 0, sizeof(fb
));
1467 /* set min/mag to same filter for faster sw speed */
1468 ctx
->sampler
.mag_img_filter
= filter
;
1469 ctx
->sampler
.min_img_filter
= filter
;
1472 * XXX for small mipmap levels, it may be faster to use the software
1475 for (dstLevel
= baseLevel
+ 1; dstLevel
<= lastLevel
; dstLevel
++) {
1476 const uint srcLevel
= dstLevel
- 1;
1478 struct pipe_surface
*surf
=
1479 screen
->get_tex_surface(screen
, pt
, face
, dstLevel
, zslice
,
1480 PIPE_BUFFER_USAGE_GPU_WRITE
);
1483 * Setup framebuffer / dest surface
1486 fb
.width
= pt
->width
[dstLevel
];
1487 fb
.height
= pt
->height
[dstLevel
];
1488 cso_set_framebuffer(ctx
->cso
, &fb
);
1491 * Setup sampler state
1492 * Note: we should only have to set the min/max LOD clamps to ensure
1493 * we grab texels from the right mipmap level. But some hardware
1494 * has trouble with min clamping so we also set the lod_bias to
1495 * try to work around that.
1497 ctx
->sampler
.min_lod
= ctx
->sampler
.max_lod
= (float) srcLevel
;
1498 ctx
->sampler
.lod_bias
= (float) srcLevel
;
1499 cso_single_sampler(ctx
->cso
, 0, &ctx
->sampler
);
1500 cso_single_sampler_done(ctx
->cso
);
1502 cso_set_sampler_textures(ctx
->cso
, 1, &pt
);
1504 /* quad coords in window coords (bypassing vs, clip and viewport) */
1505 offset
= set_vertex_data(ctx
,
1506 (float) pt
->width
[dstLevel
],
1507 (float) pt
->height
[dstLevel
]);
1509 util_draw_vertex_buffer(ctx
->pipe
,
1512 PIPE_PRIM_TRIANGLE_FAN
,
1514 2); /* attribs/vert */
1516 pipe
->flush(pipe
, PIPE_FLUSH_RENDER_CACHE
, NULL
);
1518 /* need to signal that the texture has changed _after_ rendering to it */
1519 pipe_surface_reference( &surf
, NULL
);
1522 /* restore state we changed */
1523 cso_restore_blend(ctx
->cso
);
1524 cso_restore_depth_stencil_alpha(ctx
->cso
);
1525 cso_restore_rasterizer(ctx
->cso
);
1526 cso_restore_samplers(ctx
->cso
);
1527 cso_restore_sampler_textures(ctx
->cso
);
1528 cso_restore_framebuffer(ctx
->cso
);
1529 cso_restore_fragment_shader(ctx
->cso
);
1530 cso_restore_vertex_shader(ctx
->cso
);