1/**************************************************************************
2 *
3 * Copyright 2007 VMware, Inc.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28 /*
29  * Authors:
30  *   Keith Whitwell <keithw@vmware.com>
31  */
32
33#include "util/u_memory.h"
34#include "util/u_format.h"
35#include "util/u_half.h"
36#include "util/u_math.h"
37#include "pipe/p_state.h"
38#include "translate.h"
39
40
41#define DRAW_DBG 0
42
43typedef void (*fetch_func)(void *dst,
44                           const uint8_t *src,
45                           unsigned i, unsigned j);
46typedef void (*emit_func)(const void *attrib, void *ptr);
47
48
49
50struct translate_generic {
51   struct translate translate;
52
53   struct {
54      enum translate_element_type type;
55
56      fetch_func fetch;
57      unsigned buffer;
58      unsigned input_offset;
59      unsigned instance_divisor;
60
61      emit_func emit;
62      unsigned output_offset;
63
64      const uint8_t *input_ptr;
65      unsigned input_stride;
66      unsigned max_index;
67
68      /* this value is set to -1 if this is a normal element with output_format != input_format:
69       * in this case, u_format is used to do a full conversion
70       *
71       * this value is set to the format size in bytes if output_format == input_format or for 32-bit instance ids:
72       * in this case, memcpy is used to copy this amount of bytes
73       */
74      int copy_size;
75
76   } attrib[TRANSLATE_MAX_ATTRIBS];
77
78   unsigned nr_attrib;
79};
80
81
82static struct translate_generic *translate_generic( struct translate *translate )
83{
84   return (struct translate_generic *)translate;
85}
86
87/**
88 * Fetch a dword[4] vertex attribute from memory, doing format/type
89 * conversion as needed.
90 *
91 * This is probably needed/dupliocated elsewhere, eg format
92 * conversion, texture sampling etc.
93 */
94#define ATTRIB( NAME, SZ, SRCTYPE, DSTTYPE, TO )        \
95static void						\
96emit_##NAME(const void *attrib, void *ptr)		\
97{  \
98   unsigned i;						\
99   SRCTYPE *in = (SRCTYPE *)attrib;                     \
100   DSTTYPE *out = (DSTTYPE *)ptr;			\
101							\
102   for (i = 0; i < SZ; i++) {				\
103      out[i] = TO(in[i]);				\
104   }							\
105}
106
107
108#define TO_64_FLOAT(x)   ((double) x)
109#define TO_32_FLOAT(x)   (x)
110#define TO_16_FLOAT(x)   util_float_to_half(x)
111
112#define TO_8_USCALED(x)  ((unsigned char) x)
113#define TO_16_USCALED(x) ((unsigned short) x)
114#define TO_32_USCALED(x) ((unsigned int) x)
115
116#define TO_8_SSCALED(x)  ((char) x)
117#define TO_16_SSCALED(x) ((short) x)
118#define TO_32_SSCALED(x) ((int) x)
119
120#define TO_8_UNORM(x)    ((unsigned char) (x * 255.0f))
121#define TO_16_UNORM(x)   ((unsigned short) (x * 65535.0f))
122#define TO_32_UNORM(x)   ((unsigned int) (x * 4294967295.0f))
123
124#define TO_8_SNORM(x)    ((char) (x * 127.0f))
125#define TO_16_SNORM(x)   ((short) (x * 32767.0f))
126#define TO_32_SNORM(x)   ((int) (x * 2147483647.0f))
127
128#define TO_32_FIXED(x)   ((int) (x * 65536.0f))
129
130#define TO_INT(x)        (x)
131
132
133ATTRIB( R64G64B64A64_FLOAT,   4, float, double, TO_64_FLOAT )
134ATTRIB( R64G64B64_FLOAT,      3, float, double, TO_64_FLOAT )
135ATTRIB( R64G64_FLOAT,         2, float, double, TO_64_FLOAT )
136ATTRIB( R64_FLOAT,            1, float, double, TO_64_FLOAT )
137
138ATTRIB( R32G32B32A32_FLOAT,   4, float, float, TO_32_FLOAT )
139ATTRIB( R32G32B32_FLOAT,      3, float, float, TO_32_FLOAT )
140ATTRIB( R32G32_FLOAT,         2, float, float, TO_32_FLOAT )
141ATTRIB( R32_FLOAT,            1, float, float, TO_32_FLOAT )
142
143ATTRIB( R16G16B16A16_FLOAT,   4, float, ushort, TO_16_FLOAT )
144ATTRIB( R16G16B16_FLOAT,      3, float, ushort, TO_16_FLOAT )
145ATTRIB( R16G16_FLOAT,         2, float, ushort, TO_16_FLOAT )
146ATTRIB( R16_FLOAT,            1, float, ushort, TO_16_FLOAT )
147
148ATTRIB( R32G32B32A32_USCALED, 4, float, unsigned, TO_32_USCALED )
149ATTRIB( R32G32B32_USCALED,    3, float, unsigned, TO_32_USCALED )
150ATTRIB( R32G32_USCALED,       2, float, unsigned, TO_32_USCALED )
151ATTRIB( R32_USCALED,          1, float, unsigned, TO_32_USCALED )
152
153ATTRIB( R32G32B32A32_SSCALED, 4, float, int, TO_32_SSCALED )
154ATTRIB( R32G32B32_SSCALED,    3, float, int, TO_32_SSCALED )
155ATTRIB( R32G32_SSCALED,       2, float, int, TO_32_SSCALED )
156ATTRIB( R32_SSCALED,          1, float, int, TO_32_SSCALED )
157
158ATTRIB( R32G32B32A32_UNORM, 4, float, unsigned, TO_32_UNORM )
159ATTRIB( R32G32B32_UNORM,    3, float, unsigned, TO_32_UNORM )
160ATTRIB( R32G32_UNORM,       2, float, unsigned, TO_32_UNORM )
161ATTRIB( R32_UNORM,          1, float, unsigned, TO_32_UNORM )
162
163ATTRIB( R32G32B32A32_SNORM, 4, float, int, TO_32_SNORM )
164ATTRIB( R32G32B32_SNORM,    3, float, int, TO_32_SNORM )
165ATTRIB( R32G32_SNORM,       2, float, int, TO_32_SNORM )
166ATTRIB( R32_SNORM,          1, float, int, TO_32_SNORM )
167
168ATTRIB( R16G16B16A16_USCALED, 4, float, ushort, TO_16_USCALED )
169ATTRIB( R16G16B16_USCALED,    3, float, ushort, TO_16_USCALED )
170ATTRIB( R16G16_USCALED,       2, float, ushort, TO_16_USCALED )
171ATTRIB( R16_USCALED,          1, float, ushort, TO_16_USCALED )
172
173ATTRIB( R16G16B16A16_SSCALED, 4, float, short, TO_16_SSCALED )
174ATTRIB( R16G16B16_SSCALED,    3, float, short, TO_16_SSCALED )
175ATTRIB( R16G16_SSCALED,       2, float, short, TO_16_SSCALED )
176ATTRIB( R16_SSCALED,          1, float, short, TO_16_SSCALED )
177
178ATTRIB( R16G16B16A16_UNORM, 4, float, ushort, TO_16_UNORM )
179ATTRIB( R16G16B16_UNORM,    3, float, ushort, TO_16_UNORM )
180ATTRIB( R16G16_UNORM,       2, float, ushort, TO_16_UNORM )
181ATTRIB( R16_UNORM,          1, float, ushort, TO_16_UNORM )
182
183ATTRIB( R16G16B16A16_SNORM, 4, float, short, TO_16_SNORM )
184ATTRIB( R16G16B16_SNORM,    3, float, short, TO_16_SNORM )
185ATTRIB( R16G16_SNORM,       2, float, short, TO_16_SNORM )
186ATTRIB( R16_SNORM,          1, float, short, TO_16_SNORM )
187
188ATTRIB( R8G8B8A8_USCALED,   4, float, ubyte, TO_8_USCALED )
189ATTRIB( R8G8B8_USCALED,     3, float, ubyte, TO_8_USCALED )
190ATTRIB( R8G8_USCALED,       2, float, ubyte, TO_8_USCALED )
191ATTRIB( R8_USCALED,         1, float, ubyte, TO_8_USCALED )
192
193ATTRIB( R8G8B8A8_SSCALED,  4, float, char, TO_8_SSCALED )
194ATTRIB( R8G8B8_SSCALED,    3, float, char, TO_8_SSCALED )
195ATTRIB( R8G8_SSCALED,      2, float, char, TO_8_SSCALED )
196ATTRIB( R8_SSCALED,        1, float, char, TO_8_SSCALED )
197
198ATTRIB( R8G8B8A8_UNORM,  4, float, ubyte, TO_8_UNORM )
199ATTRIB( R8G8B8_UNORM,    3, float, ubyte, TO_8_UNORM )
200ATTRIB( R8G8_UNORM,      2, float, ubyte, TO_8_UNORM )
201ATTRIB( R8_UNORM,        1, float, ubyte, TO_8_UNORM )
202
203ATTRIB( R8G8B8A8_SNORM,  4, float, char, TO_8_SNORM )
204ATTRIB( R8G8B8_SNORM,    3, float, char, TO_8_SNORM )
205ATTRIB( R8G8_SNORM,      2, float, char, TO_8_SNORM )
206ATTRIB( R8_SNORM,        1, float, char, TO_8_SNORM )
207
208ATTRIB( R32G32B32A32_UINT, 4, uint32_t, unsigned, TO_INT )
209ATTRIB( R32G32B32_UINT,    3, uint32_t, unsigned, TO_INT )
210ATTRIB( R32G32_UINT,       2, uint32_t, unsigned, TO_INT )
211ATTRIB( R32_UINT,          1, uint32_t, unsigned, TO_INT )
212
213ATTRIB( R16G16B16A16_UINT, 4, uint32_t, ushort, TO_INT )
214ATTRIB( R16G16B16_UINT,    3, uint32_t, ushort, TO_INT )
215ATTRIB( R16G16_UINT,       2, uint32_t, ushort, TO_INT )
216ATTRIB( R16_UINT,          1, uint32_t, ushort, TO_INT )
217
218ATTRIB( R8G8B8A8_UINT,   4, uint32_t, ubyte, TO_INT )
219ATTRIB( R8G8B8_UINT,     3, uint32_t, ubyte, TO_INT )
220ATTRIB( R8G8_UINT,       2, uint32_t, ubyte, TO_INT )
221ATTRIB( R8_UINT,         1, uint32_t, ubyte, TO_INT )
222
223ATTRIB( R32G32B32A32_SINT, 4, int32_t, int, TO_INT )
224ATTRIB( R32G32B32_SINT,    3, int32_t, int, TO_INT )
225ATTRIB( R32G32_SINT,       2, int32_t, int, TO_INT )
226ATTRIB( R32_SINT,          1, int32_t, int, TO_INT )
227
228ATTRIB( R16G16B16A16_SINT, 4, int32_t, short, TO_INT )
229ATTRIB( R16G16B16_SINT,    3, int32_t, short, TO_INT )
230ATTRIB( R16G16_SINT,       2, int32_t, short, TO_INT )
231ATTRIB( R16_SINT,          1, int32_t, short, TO_INT )
232
233ATTRIB( R8G8B8A8_SINT,   4, int32_t, char, TO_INT )
234ATTRIB( R8G8B8_SINT,     3, int32_t, char, TO_INT )
235ATTRIB( R8G8_SINT,       2, int32_t, char, TO_INT )
236ATTRIB( R8_SINT,         1, int32_t, char, TO_INT )
237
238static void
239emit_A8R8G8B8_UNORM( const void *attrib, void *ptr)
240{
241   float *in = (float *)attrib;
242   ubyte *out = (ubyte *)ptr;
243   out[0] = TO_8_UNORM(in[3]);
244   out[1] = TO_8_UNORM(in[0]);
245   out[2] = TO_8_UNORM(in[1]);
246   out[3] = TO_8_UNORM(in[2]);
247}
248
249static void
250emit_B8G8R8A8_UNORM( const void *attrib, void *ptr)
251{
252   float *in = (float *)attrib;
253   ubyte *out = (ubyte *)ptr;
254   out[2] = TO_8_UNORM(in[0]);
255   out[1] = TO_8_UNORM(in[1]);
256   out[0] = TO_8_UNORM(in[2]);
257   out[3] = TO_8_UNORM(in[3]);
258}
259
260static void
261emit_B10G10R10A2_UNORM( const void *attrib, void *ptr )
262{
263   float *src = (float *)ptr;
264   uint32_t value = 0;
265   value |= ((uint32_t)(CLAMP(src[2], 0, 1) * 0x3ff)) & 0x3ff;
266   value |= (((uint32_t)(CLAMP(src[1], 0, 1) * 0x3ff)) & 0x3ff) << 10;
267   value |= (((uint32_t)(CLAMP(src[0], 0, 1) * 0x3ff)) & 0x3ff) << 20;
268   value |= ((uint32_t)(CLAMP(src[3], 0, 1) * 0x3)) << 30;
269   *(uint32_t *)attrib = util_le32_to_cpu(value);
270}
271
272static void
273emit_B10G10R10A2_USCALED( const void *attrib, void *ptr )
274{
275   float *src = (float *)ptr;
276   uint32_t value = 0;
277   value |= ((uint32_t)CLAMP(src[2], 0, 1023)) & 0x3ff;
278   value |= (((uint32_t)CLAMP(src[1], 0, 1023)) & 0x3ff) << 10;
279   value |= (((uint32_t)CLAMP(src[0], 0, 1023)) & 0x3ff) << 20;
280   value |= ((uint32_t)CLAMP(src[3], 0, 3)) << 30;
281   *(uint32_t *)attrib = util_le32_to_cpu(value);
282}
283
284static void
285emit_B10G10R10A2_SNORM( const void *attrib, void *ptr )
286{
287   float *src = (float *)ptr;
288   uint32_t value = 0;
289   value |= (uint32_t)(((uint32_t)(CLAMP(src[2], -1, 1) * 0x1ff)) & 0x3ff) ;
290   value |= (uint32_t)((((uint32_t)(CLAMP(src[1], -1, 1) * 0x1ff)) & 0x3ff) << 10) ;
291   value |= (uint32_t)((((uint32_t)(CLAMP(src[0], -1, 1) * 0x1ff)) & 0x3ff) << 20) ;
292   value |= (uint32_t)(((uint32_t)(CLAMP(src[3], -1, 1) * 0x1)) << 30) ;
293   *(uint32_t *)attrib = util_le32_to_cpu(value);
294}
295
296static void
297emit_B10G10R10A2_SSCALED( const void *attrib, void *ptr )
298{
299   float *src = (float *)ptr;
300   uint32_t value = 0;
301   value |= (uint32_t)(((uint32_t)CLAMP(src[2], -512, 511)) & 0x3ff) ;
302   value |= (uint32_t)((((uint32_t)CLAMP(src[1], -512, 511)) & 0x3ff) << 10) ;
303   value |= (uint32_t)((((uint32_t)CLAMP(src[0], -512, 511)) & 0x3ff) << 20) ;
304   value |= (uint32_t)(((uint32_t)CLAMP(src[3], -2, 1)) << 30) ;
305   *(uint32_t *)attrib = util_le32_to_cpu(value);
306}
307
308static void
309emit_R10G10B10A2_UNORM( const void *attrib, void *ptr )
310{
311   float *src = (float *)ptr;
312   uint32_t value = 0;
313   value |= ((uint32_t)(CLAMP(src[0], 0, 1) * 0x3ff)) & 0x3ff;
314   value |= (((uint32_t)(CLAMP(src[1], 0, 1) * 0x3ff)) & 0x3ff) << 10;
315   value |= (((uint32_t)(CLAMP(src[2], 0, 1) * 0x3ff)) & 0x3ff) << 20;
316   value |= ((uint32_t)(CLAMP(src[3], 0, 1) * 0x3)) << 30;
317   *(uint32_t *)attrib = util_le32_to_cpu(value);
318}
319
320static void
321emit_R10G10B10A2_USCALED( const void *attrib, void *ptr )
322{
323   float *src = (float *)ptr;
324   uint32_t value = 0;
325   value |= ((uint32_t)CLAMP(src[0], 0, 1023)) & 0x3ff;
326   value |= (((uint32_t)CLAMP(src[1], 0, 1023)) & 0x3ff) << 10;
327   value |= (((uint32_t)CLAMP(src[2], 0, 1023)) & 0x3ff) << 20;
328   value |= ((uint32_t)CLAMP(src[3], 0, 3)) << 30;
329   *(uint32_t *)attrib = util_le32_to_cpu(value);
330}
331
332static void
333emit_R10G10B10A2_SNORM( const void *attrib, void *ptr )
334{
335   float *src = (float *)ptr;
336   uint32_t value = 0;
337   value |= (uint32_t)(((uint32_t)(CLAMP(src[0], -1, 1) * 0x1ff)) & 0x3ff) ;
338   value |= (uint32_t)((((uint32_t)(CLAMP(src[1], -1, 1) * 0x1ff)) & 0x3ff) << 10) ;
339   value |= (uint32_t)((((uint32_t)(CLAMP(src[2], -1, 1) * 0x1ff)) & 0x3ff) << 20) ;
340   value |= (uint32_t)(((uint32_t)(CLAMP(src[3], -1, 1) * 0x1)) << 30) ;
341   *(uint32_t *)attrib = util_le32_to_cpu(value);
342}
343
344static void
345emit_R10G10B10A2_SSCALED( const void *attrib, void *ptr)
346{
347   float *src = (float *)ptr;
348   uint32_t value = 0;
349   value |= (uint32_t)(((uint32_t)CLAMP(src[0], -512, 511)) & 0x3ff) ;
350   value |= (uint32_t)((((uint32_t)CLAMP(src[1], -512, 511)) & 0x3ff) << 10) ;
351   value |= (uint32_t)((((uint32_t)CLAMP(src[2], -512, 511)) & 0x3ff) << 20) ;
352   value |= (uint32_t)(((uint32_t)CLAMP(src[3], -2, 1)) << 30) ;
353   *(uint32_t *)attrib = util_le32_to_cpu(value);
354}
355
356static void
357emit_NULL( const void *attrib, void *ptr )
358{
359   /* do nothing is the only sensible option */
360}
361
362static emit_func get_emit_func( enum pipe_format format )
363{
364   switch (format) {
365   case PIPE_FORMAT_R64_FLOAT:
366      return &emit_R64_FLOAT;
367   case PIPE_FORMAT_R64G64_FLOAT:
368      return &emit_R64G64_FLOAT;
369   case PIPE_FORMAT_R64G64B64_FLOAT:
370      return &emit_R64G64B64_FLOAT;
371   case PIPE_FORMAT_R64G64B64A64_FLOAT:
372      return &emit_R64G64B64A64_FLOAT;
373
374   case PIPE_FORMAT_R32_FLOAT:
375      return &emit_R32_FLOAT;
376   case PIPE_FORMAT_R32G32_FLOAT:
377      return &emit_R32G32_FLOAT;
378   case PIPE_FORMAT_R32G32B32_FLOAT:
379      return &emit_R32G32B32_FLOAT;
380   case PIPE_FORMAT_R32G32B32A32_FLOAT:
381      return &emit_R32G32B32A32_FLOAT;
382
383   case PIPE_FORMAT_R16_FLOAT:
384      return &emit_R16_FLOAT;
385   case PIPE_FORMAT_R16G16_FLOAT:
386      return &emit_R16G16_FLOAT;
387   case PIPE_FORMAT_R16G16B16_FLOAT:
388      return &emit_R16G16B16_FLOAT;
389   case PIPE_FORMAT_R16G16B16A16_FLOAT:
390      return &emit_R16G16B16A16_FLOAT;
391
392   case PIPE_FORMAT_R32_UNORM:
393      return &emit_R32_UNORM;
394   case PIPE_FORMAT_R32G32_UNORM:
395      return &emit_R32G32_UNORM;
396   case PIPE_FORMAT_R32G32B32_UNORM:
397      return &emit_R32G32B32_UNORM;
398   case PIPE_FORMAT_R32G32B32A32_UNORM:
399      return &emit_R32G32B32A32_UNORM;
400
401   case PIPE_FORMAT_R32_USCALED:
402      return &emit_R32_USCALED;
403   case PIPE_FORMAT_R32G32_USCALED:
404      return &emit_R32G32_USCALED;
405   case PIPE_FORMAT_R32G32B32_USCALED:
406      return &emit_R32G32B32_USCALED;
407   case PIPE_FORMAT_R32G32B32A32_USCALED:
408      return &emit_R32G32B32A32_USCALED;
409
410   case PIPE_FORMAT_R32_SNORM:
411      return &emit_R32_SNORM;
412   case PIPE_FORMAT_R32G32_SNORM:
413      return &emit_R32G32_SNORM;
414   case PIPE_FORMAT_R32G32B32_SNORM:
415      return &emit_R32G32B32_SNORM;
416   case PIPE_FORMAT_R32G32B32A32_SNORM:
417      return &emit_R32G32B32A32_SNORM;
418
419   case PIPE_FORMAT_R32_SSCALED:
420      return &emit_R32_SSCALED;
421   case PIPE_FORMAT_R32G32_SSCALED:
422      return &emit_R32G32_SSCALED;
423   case PIPE_FORMAT_R32G32B32_SSCALED:
424      return &emit_R32G32B32_SSCALED;
425   case PIPE_FORMAT_R32G32B32A32_SSCALED:
426      return &emit_R32G32B32A32_SSCALED;
427
428   case PIPE_FORMAT_R16_UNORM:
429      return &emit_R16_UNORM;
430   case PIPE_FORMAT_R16G16_UNORM:
431      return &emit_R16G16_UNORM;
432   case PIPE_FORMAT_R16G16B16_UNORM:
433      return &emit_R16G16B16_UNORM;
434   case PIPE_FORMAT_R16G16B16A16_UNORM:
435      return &emit_R16G16B16A16_UNORM;
436
437   case PIPE_FORMAT_R16_USCALED:
438      return &emit_R16_USCALED;
439   case PIPE_FORMAT_R16G16_USCALED:
440      return &emit_R16G16_USCALED;
441   case PIPE_FORMAT_R16G16B16_USCALED:
442      return &emit_R16G16B16_USCALED;
443   case PIPE_FORMAT_R16G16B16A16_USCALED:
444      return &emit_R16G16B16A16_USCALED;
445
446   case PIPE_FORMAT_R16_SNORM:
447      return &emit_R16_SNORM;
448   case PIPE_FORMAT_R16G16_SNORM:
449      return &emit_R16G16_SNORM;
450   case PIPE_FORMAT_R16G16B16_SNORM:
451      return &emit_R16G16B16_SNORM;
452   case PIPE_FORMAT_R16G16B16A16_SNORM:
453      return &emit_R16G16B16A16_SNORM;
454
455   case PIPE_FORMAT_R16_SSCALED:
456      return &emit_R16_SSCALED;
457   case PIPE_FORMAT_R16G16_SSCALED:
458      return &emit_R16G16_SSCALED;
459   case PIPE_FORMAT_R16G16B16_SSCALED:
460      return &emit_R16G16B16_SSCALED;
461   case PIPE_FORMAT_R16G16B16A16_SSCALED:
462      return &emit_R16G16B16A16_SSCALED;
463
464   case PIPE_FORMAT_R8_UNORM:
465      return &emit_R8_UNORM;
466   case PIPE_FORMAT_R8G8_UNORM:
467      return &emit_R8G8_UNORM;
468   case PIPE_FORMAT_R8G8B8_UNORM:
469      return &emit_R8G8B8_UNORM;
470   case PIPE_FORMAT_R8G8B8A8_UNORM:
471      return &emit_R8G8B8A8_UNORM;
472
473   case PIPE_FORMAT_R8_USCALED:
474      return &emit_R8_USCALED;
475   case PIPE_FORMAT_R8G8_USCALED:
476      return &emit_R8G8_USCALED;
477   case PIPE_FORMAT_R8G8B8_USCALED:
478      return &emit_R8G8B8_USCALED;
479   case PIPE_FORMAT_R8G8B8A8_USCALED:
480      return &emit_R8G8B8A8_USCALED;
481
482   case PIPE_FORMAT_R8_SNORM:
483      return &emit_R8_SNORM;
484   case PIPE_FORMAT_R8G8_SNORM:
485      return &emit_R8G8_SNORM;
486   case PIPE_FORMAT_R8G8B8_SNORM:
487      return &emit_R8G8B8_SNORM;
488   case PIPE_FORMAT_R8G8B8A8_SNORM:
489      return &emit_R8G8B8A8_SNORM;
490
491   case PIPE_FORMAT_R8_SSCALED:
492      return &emit_R8_SSCALED;
493   case PIPE_FORMAT_R8G8_SSCALED:
494      return &emit_R8G8_SSCALED;
495   case PIPE_FORMAT_R8G8B8_SSCALED:
496      return &emit_R8G8B8_SSCALED;
497   case PIPE_FORMAT_R8G8B8A8_SSCALED:
498      return &emit_R8G8B8A8_SSCALED;
499
500   case PIPE_FORMAT_B8G8R8A8_UNORM:
501      return &emit_B8G8R8A8_UNORM;
502
503   case PIPE_FORMAT_A8R8G8B8_UNORM:
504      return &emit_A8R8G8B8_UNORM;
505
506   case PIPE_FORMAT_R32_UINT:
507      return &emit_R32_UINT;
508   case PIPE_FORMAT_R32G32_UINT:
509      return &emit_R32G32_UINT;
510   case PIPE_FORMAT_R32G32B32_UINT:
511      return &emit_R32G32B32_UINT;
512   case PIPE_FORMAT_R32G32B32A32_UINT:
513      return &emit_R32G32B32A32_UINT;
514
515   case PIPE_FORMAT_R16_UINT:
516      return &emit_R16_UINT;
517   case PIPE_FORMAT_R16G16_UINT:
518      return &emit_R16G16_UINT;
519   case PIPE_FORMAT_R16G16B16_UINT:
520      return &emit_R16G16B16_UINT;
521   case PIPE_FORMAT_R16G16B16A16_UINT:
522      return &emit_R16G16B16A16_UINT;
523
524   case PIPE_FORMAT_R8_UINT:
525      return &emit_R8_UINT;
526   case PIPE_FORMAT_R8G8_UINT:
527      return &emit_R8G8_UINT;
528   case PIPE_FORMAT_R8G8B8_UINT:
529      return &emit_R8G8B8_UINT;
530   case PIPE_FORMAT_R8G8B8A8_UINT:
531      return &emit_R8G8B8A8_UINT;
532
533   case PIPE_FORMAT_R32_SINT:
534      return &emit_R32_SINT;
535   case PIPE_FORMAT_R32G32_SINT:
536      return &emit_R32G32_SINT;
537   case PIPE_FORMAT_R32G32B32_SINT:
538      return &emit_R32G32B32_SINT;
539   case PIPE_FORMAT_R32G32B32A32_SINT:
540      return &emit_R32G32B32A32_SINT;
541
542   case PIPE_FORMAT_R16_SINT:
543      return &emit_R16_SINT;
544   case PIPE_FORMAT_R16G16_SINT:
545      return &emit_R16G16_SINT;
546   case PIPE_FORMAT_R16G16B16_SINT:
547      return &emit_R16G16B16_SINT;
548   case PIPE_FORMAT_R16G16B16A16_SINT:
549      return &emit_R16G16B16A16_SINT;
550
551   case PIPE_FORMAT_R8_SINT:
552      return &emit_R8_SINT;
553   case PIPE_FORMAT_R8G8_SINT:
554      return &emit_R8G8_SINT;
555   case PIPE_FORMAT_R8G8B8_SINT:
556      return &emit_R8G8B8_SINT;
557   case PIPE_FORMAT_R8G8B8A8_SINT:
558      return &emit_R8G8B8A8_SINT;
559
560   case PIPE_FORMAT_B10G10R10A2_UNORM:
561      return &emit_B10G10R10A2_UNORM;
562   case PIPE_FORMAT_B10G10R10A2_USCALED:
563      return &emit_B10G10R10A2_USCALED;
564   case PIPE_FORMAT_B10G10R10A2_SNORM:
565      return &emit_B10G10R10A2_SNORM;
566   case PIPE_FORMAT_B10G10R10A2_SSCALED:
567      return &emit_B10G10R10A2_SSCALED;
568
569   case PIPE_FORMAT_R10G10B10A2_UNORM:
570      return &emit_R10G10B10A2_UNORM;
571   case PIPE_FORMAT_R10G10B10A2_USCALED:
572      return &emit_R10G10B10A2_USCALED;
573   case PIPE_FORMAT_R10G10B10A2_SNORM:
574      return &emit_R10G10B10A2_SNORM;
575   case PIPE_FORMAT_R10G10B10A2_SSCALED:
576      return &emit_R10G10B10A2_SSCALED;
577
578   default:
579      assert(0);
580      return &emit_NULL;
581   }
582}
583
584static ALWAYS_INLINE void PIPE_CDECL generic_run_one( struct translate_generic *tg,
585                                         unsigned elt,
586                                         unsigned start_instance,
587                                         unsigned instance_id,
588                                         void *vert )
589{
590   unsigned nr_attrs = tg->nr_attrib;
591   unsigned attr;
592
593   for (attr = 0; attr < nr_attrs; attr++) {
594      float data[4];
595      uint8_t *dst = (uint8_t *)vert + tg->attrib[attr].output_offset;
596
597      if (tg->attrib[attr].type == TRANSLATE_ELEMENT_NORMAL) {
598         const uint8_t *src;
599         unsigned index;
600         int copy_size;
601
602         if (tg->attrib[attr].instance_divisor) {
603            index = start_instance;
604            index += (instance_id  / tg->attrib[attr].instance_divisor);
605            /* XXX we need to clamp the index here too, but to a
606             * per-array max value, not the draw->pt.max_index value
607             * that's being given to us via translate->set_buffer().
608             */
609         }
610         else {
611            index = elt;
612            /* clamp to avoid going out of bounds */
613            index = MIN2(index, tg->attrib[attr].max_index);
614         }
615
616         src = tg->attrib[attr].input_ptr +
617               (ptrdiff_t)tg->attrib[attr].input_stride * index;
618
619         copy_size = tg->attrib[attr].copy_size;
620         if(likely(copy_size >= 0))
621            memcpy(dst, src, copy_size);
622         else
623         {
624            tg->attrib[attr].fetch( data, src, 0, 0 );
625
626            if (0)
627               debug_printf("Fetch linear attr %d  from %p  stride %d  index %d: "
628                         " %f, %f, %f, %f \n",
629                         attr,
630                         tg->attrib[attr].input_ptr,
631                         tg->attrib[attr].input_stride,
632                         index,
633                         data[0], data[1],data[2], data[3]);
634
635            tg->attrib[attr].emit( data, dst );
636         }
637      } else {
638         if(likely(tg->attrib[attr].copy_size >= 0))
639            memcpy(data, &instance_id, 4);
640         else
641         {
642            data[0] = (float)instance_id;
643            tg->attrib[attr].emit( data, dst );
644         }
645      }
646   }
647}
648
649/**
650 * Fetch vertex attributes for 'count' vertices.
651 */
652static void PIPE_CDECL generic_run_elts( struct translate *translate,
653                                         const unsigned *elts,
654                                         unsigned count,
655                                         unsigned start_instance,
656                                         unsigned instance_id,
657                                         void *output_buffer )
658{
659   struct translate_generic *tg = translate_generic(translate);
660   char *vert = output_buffer;
661   unsigned i;
662
663   for (i = 0; i < count; i++) {
664      generic_run_one(tg, *elts++, start_instance, instance_id, vert);
665      vert += tg->translate.key.output_stride;
666   }
667}
668
669static void PIPE_CDECL generic_run_elts16( struct translate *translate,
670                                         const uint16_t *elts,
671                                         unsigned count,
672                                         unsigned start_instance,
673                                         unsigned instance_id,
674                                         void *output_buffer )
675{
676   struct translate_generic *tg = translate_generic(translate);
677   char *vert = output_buffer;
678   unsigned i;
679
680   for (i = 0; i < count; i++) {
681      generic_run_one(tg, *elts++, start_instance, instance_id, vert);
682      vert += tg->translate.key.output_stride;
683   }
684}
685
686static void PIPE_CDECL generic_run_elts8( struct translate *translate,
687                                         const uint8_t *elts,
688                                         unsigned count,
689                                         unsigned start_instance,
690                                         unsigned instance_id,
691                                         void *output_buffer )
692{
693   struct translate_generic *tg = translate_generic(translate);
694   char *vert = output_buffer;
695   unsigned i;
696
697   for (i = 0; i < count; i++) {
698      generic_run_one(tg, *elts++, start_instance, instance_id, vert);
699      vert += tg->translate.key.output_stride;
700   }
701}
702
703static void PIPE_CDECL generic_run( struct translate *translate,
704                                    unsigned start,
705                                    unsigned count,
706                                    unsigned start_instance,
707                                    unsigned instance_id,
708                                    void *output_buffer )
709{
710   struct translate_generic *tg = translate_generic(translate);
711   char *vert = output_buffer;
712   unsigned i;
713
714   for (i = 0; i < count; i++) {
715      generic_run_one(tg, start + i, start_instance, instance_id, vert);
716      vert += tg->translate.key.output_stride;
717   }
718}
719
720
721
722static void generic_set_buffer( struct translate *translate,
723				unsigned buf,
724				const void *ptr,
725				unsigned stride,
726				unsigned max_index )
727{
728   struct translate_generic *tg = translate_generic(translate);
729   unsigned i;
730
731   for (i = 0; i < tg->nr_attrib; i++) {
732      if (tg->attrib[i].buffer == buf) {
733	 tg->attrib[i].input_ptr = ((const uint8_t *)ptr +
734				    tg->attrib[i].input_offset);
735	 tg->attrib[i].input_stride = stride;
736         tg->attrib[i].max_index = max_index;
737      }
738   }
739}
740
741
742static void generic_release( struct translate *translate )
743{
744   /* Refcount?
745    */
746   FREE(translate);
747}
748
749static boolean
750is_legal_int_format_combo( const struct util_format_description *src,
751                           const struct util_format_description *dst )
752{
753   unsigned i;
754   unsigned nr = MIN2(src->nr_channels, dst->nr_channels);
755
756   for (i = 0; i < nr; i++) {
757      /* The signs must match. */
758      if (src->channel[i].type != dst->channel[i].type) {
759         return FALSE;
760      }
761
762      /* Integers must not lose precision at any point in the pipeline. */
763      if (src->channel[i].size > dst->channel[i].size) {
764         return FALSE;
765      }
766   }
767   return TRUE;
768}
769
770struct translate *translate_generic_create( const struct translate_key *key )
771{
772   struct translate_generic *tg = CALLOC_STRUCT(translate_generic);
773   unsigned i;
774
775   if (!tg)
776      return NULL;
777
778   assert(key->nr_elements <= TRANSLATE_MAX_ATTRIBS);
779
780   tg->translate.key = *key;
781   tg->translate.release = generic_release;
782   tg->translate.set_buffer = generic_set_buffer;
783   tg->translate.run_elts = generic_run_elts;
784   tg->translate.run_elts16 = generic_run_elts16;
785   tg->translate.run_elts8 = generic_run_elts8;
786   tg->translate.run = generic_run;
787
788   for (i = 0; i < key->nr_elements; i++) {
789      const struct util_format_description *format_desc =
790            util_format_description(key->element[i].input_format);
791
792      assert(format_desc);
793
794      tg->attrib[i].type = key->element[i].type;
795
796      if (format_desc->channel[0].pure_integer) {
797         const struct util_format_description *out_format_desc =
798               util_format_description(key->element[i].output_format);
799
800         if (!is_legal_int_format_combo(format_desc, out_format_desc)) {
801            FREE(tg);
802            return NULL;
803         }
804
805         if (format_desc->channel[0].type == UTIL_FORMAT_TYPE_SIGNED) {
806            assert(format_desc->fetch_rgba_sint);
807            tg->attrib[i].fetch = (fetch_func)format_desc->fetch_rgba_sint;
808         } else {
809            assert(format_desc->fetch_rgba_uint);
810            tg->attrib[i].fetch = (fetch_func)format_desc->fetch_rgba_uint;
811         }
812      } else {
813         assert(format_desc->fetch_rgba_float);
814         tg->attrib[i].fetch = (fetch_func)format_desc->fetch_rgba_float;
815      }
816
817      tg->attrib[i].buffer = key->element[i].input_buffer;
818      tg->attrib[i].input_offset = key->element[i].input_offset;
819      tg->attrib[i].instance_divisor = key->element[i].instance_divisor;
820
821      tg->attrib[i].output_offset = key->element[i].output_offset;
822
823      tg->attrib[i].copy_size = -1;
824      if (tg->attrib[i].type == TRANSLATE_ELEMENT_INSTANCE_ID)
825      {
826            if(key->element[i].output_format == PIPE_FORMAT_R32_USCALED
827                  || key->element[i].output_format == PIPE_FORMAT_R32_SSCALED)
828               tg->attrib[i].copy_size = 4;
829      }
830      else
831      {
832         if(key->element[i].input_format == key->element[i].output_format
833               && format_desc->block.width == 1
834               && format_desc->block.height == 1
835               && !(format_desc->block.bits & 7))
836            tg->attrib[i].copy_size = format_desc->block.bits >> 3;
837      }
838
839      if(tg->attrib[i].copy_size < 0)
840	      tg->attrib[i].emit = get_emit_func(key->element[i].output_format);
841      else
842	      tg->attrib[i].emit  = NULL;
843   }
844
845   tg->nr_attrib = key->nr_elements;
846
847
848   return &tg->translate;
849}
850
851boolean translate_generic_is_output_format_supported(enum pipe_format format)
852{
853   switch(format)
854   {
855   case PIPE_FORMAT_R64G64B64A64_FLOAT: return TRUE;
856   case PIPE_FORMAT_R64G64B64_FLOAT: return TRUE;
857   case PIPE_FORMAT_R64G64_FLOAT: return TRUE;
858   case PIPE_FORMAT_R64_FLOAT: return TRUE;
859
860   case PIPE_FORMAT_R32G32B32A32_FLOAT: return TRUE;
861   case PIPE_FORMAT_R32G32B32_FLOAT: return TRUE;
862   case PIPE_FORMAT_R32G32_FLOAT: return TRUE;
863   case PIPE_FORMAT_R32_FLOAT: return TRUE;
864
865   case PIPE_FORMAT_R16G16B16A16_FLOAT: return TRUE;
866   case PIPE_FORMAT_R16G16B16_FLOAT: return TRUE;
867   case PIPE_FORMAT_R16G16_FLOAT: return TRUE;
868   case PIPE_FORMAT_R16_FLOAT: return TRUE;
869
870   case PIPE_FORMAT_R32G32B32A32_USCALED: return TRUE;
871   case PIPE_FORMAT_R32G32B32_USCALED: return TRUE;
872   case PIPE_FORMAT_R32G32_USCALED: return TRUE;
873   case PIPE_FORMAT_R32_USCALED: return TRUE;
874
875   case PIPE_FORMAT_R32G32B32A32_SSCALED: return TRUE;
876   case PIPE_FORMAT_R32G32B32_SSCALED: return TRUE;
877   case PIPE_FORMAT_R32G32_SSCALED: return TRUE;
878   case PIPE_FORMAT_R32_SSCALED: return TRUE;
879
880   case PIPE_FORMAT_R32G32B32A32_UNORM: return TRUE;
881   case PIPE_FORMAT_R32G32B32_UNORM: return TRUE;
882   case PIPE_FORMAT_R32G32_UNORM: return TRUE;
883   case PIPE_FORMAT_R32_UNORM: return TRUE;
884
885   case PIPE_FORMAT_R32G32B32A32_SNORM: return TRUE;
886   case PIPE_FORMAT_R32G32B32_SNORM: return TRUE;
887   case PIPE_FORMAT_R32G32_SNORM: return TRUE;
888   case PIPE_FORMAT_R32_SNORM: return TRUE;
889
890   case PIPE_FORMAT_R16G16B16A16_USCALED: return TRUE;
891   case PIPE_FORMAT_R16G16B16_USCALED: return TRUE;
892   case PIPE_FORMAT_R16G16_USCALED: return TRUE;
893   case PIPE_FORMAT_R16_USCALED: return TRUE;
894
895   case PIPE_FORMAT_R16G16B16A16_SSCALED: return TRUE;
896   case PIPE_FORMAT_R16G16B16_SSCALED: return TRUE;
897   case PIPE_FORMAT_R16G16_SSCALED: return TRUE;
898   case PIPE_FORMAT_R16_SSCALED: return TRUE;
899
900   case PIPE_FORMAT_R16G16B16A16_UNORM: return TRUE;
901   case PIPE_FORMAT_R16G16B16_UNORM: return TRUE;
902   case PIPE_FORMAT_R16G16_UNORM: return TRUE;
903   case PIPE_FORMAT_R16_UNORM: return TRUE;
904
905   case PIPE_FORMAT_R16G16B16A16_SNORM: return TRUE;
906   case PIPE_FORMAT_R16G16B16_SNORM: return TRUE;
907   case PIPE_FORMAT_R16G16_SNORM: return TRUE;
908   case PIPE_FORMAT_R16_SNORM: return TRUE;
909
910   case PIPE_FORMAT_R8G8B8A8_USCALED: return TRUE;
911   case PIPE_FORMAT_R8G8B8_USCALED: return TRUE;
912   case PIPE_FORMAT_R8G8_USCALED: return TRUE;
913   case PIPE_FORMAT_R8_USCALED: return TRUE;
914
915   case PIPE_FORMAT_R8G8B8A8_SSCALED: return TRUE;
916   case PIPE_FORMAT_R8G8B8_SSCALED: return TRUE;
917   case PIPE_FORMAT_R8G8_SSCALED: return TRUE;
918   case PIPE_FORMAT_R8_SSCALED: return TRUE;
919
920   case PIPE_FORMAT_R8G8B8A8_UNORM: return TRUE;
921   case PIPE_FORMAT_R8G8B8_UNORM: return TRUE;
922   case PIPE_FORMAT_R8G8_UNORM: return TRUE;
923   case PIPE_FORMAT_R8_UNORM: return TRUE;
924
925   case PIPE_FORMAT_R8G8B8A8_SNORM: return TRUE;
926   case PIPE_FORMAT_R8G8B8_SNORM: return TRUE;
927   case PIPE_FORMAT_R8G8_SNORM: return TRUE;
928   case PIPE_FORMAT_R8_SNORM: return TRUE;
929
930   case PIPE_FORMAT_A8R8G8B8_UNORM: return TRUE;
931   case PIPE_FORMAT_B8G8R8A8_UNORM: return TRUE;
932
933   case PIPE_FORMAT_R32G32B32A32_UINT: return TRUE;
934   case PIPE_FORMAT_R32G32B32_UINT: return TRUE;
935   case PIPE_FORMAT_R32G32_UINT: return TRUE;
936   case PIPE_FORMAT_R32_UINT: return TRUE;
937
938   case PIPE_FORMAT_R16G16B16A16_UINT: return TRUE;
939   case PIPE_FORMAT_R16G16B16_UINT: return TRUE;
940   case PIPE_FORMAT_R16G16_UINT: return TRUE;
941   case PIPE_FORMAT_R16_UINT: return TRUE;
942
943   case PIPE_FORMAT_R8G8B8A8_UINT: return TRUE;
944   case PIPE_FORMAT_R8G8B8_UINT: return TRUE;
945   case PIPE_FORMAT_R8G8_UINT: return TRUE;
946   case PIPE_FORMAT_R8_UINT: return TRUE;
947
948   case PIPE_FORMAT_R32G32B32A32_SINT: return TRUE;
949   case PIPE_FORMAT_R32G32B32_SINT: return TRUE;
950   case PIPE_FORMAT_R32G32_SINT: return TRUE;
951   case PIPE_FORMAT_R32_SINT: return TRUE;
952
953   case PIPE_FORMAT_R16G16B16A16_SINT: return TRUE;
954   case PIPE_FORMAT_R16G16B16_SINT: return TRUE;
955   case PIPE_FORMAT_R16G16_SINT: return TRUE;
956   case PIPE_FORMAT_R16_SINT: return TRUE;
957
958   case PIPE_FORMAT_R8G8B8A8_SINT: return TRUE;
959   case PIPE_FORMAT_R8G8B8_SINT: return TRUE;
960   case PIPE_FORMAT_R8G8_SINT: return TRUE;
961   case PIPE_FORMAT_R8_SINT: return TRUE;
962
963   case PIPE_FORMAT_B10G10R10A2_UNORM: return TRUE;
964   case PIPE_FORMAT_B10G10R10A2_USCALED: return TRUE;
965   case PIPE_FORMAT_B10G10R10A2_SNORM: return TRUE;
966   case PIPE_FORMAT_B10G10R10A2_SSCALED: return TRUE;
967
968   case PIPE_FORMAT_R10G10B10A2_UNORM: return TRUE;
969   case PIPE_FORMAT_R10G10B10A2_USCALED: return TRUE;
970   case PIPE_FORMAT_R10G10B10A2_SNORM: return TRUE;
971   case PIPE_FORMAT_R10G10B10A2_SSCALED: return TRUE;
972
973   default: return FALSE;
974   }
975}
976