1/**************************************************************************
2 *
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
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 TUNGSTEN GRAPHICS 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 <keith@tungstengraphics.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[PIPE_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#ifdef PIPE_ARCH_BIG_ENDIAN
270   value = util_bswap32(value);
271#endif
272   *(uint32_t *)attrib = value;
273}
274
275static void
276emit_B10G10R10A2_USCALED( const void *attrib, void *ptr )
277{
278   float *src = (float *)ptr;
279   uint32_t value = 0;
280   value |= ((uint32_t)CLAMP(src[2], 0, 1023)) & 0x3ff;
281   value |= (((uint32_t)CLAMP(src[1], 0, 1023)) & 0x3ff) << 10;
282   value |= (((uint32_t)CLAMP(src[0], 0, 1023)) & 0x3ff) << 20;
283   value |= ((uint32_t)CLAMP(src[3], 0, 3)) << 30;
284#ifdef PIPE_ARCH_BIG_ENDIAN
285   value = util_bswap32(value);
286#endif
287   *(uint32_t *)attrib = value;
288}
289
290static void
291emit_B10G10R10A2_SNORM( const void *attrib, void *ptr )
292{
293   float *src = (float *)ptr;
294   uint32_t value = 0;
295   value |= (uint32_t)(((uint32_t)(CLAMP(src[2], -1, 1) * 0x1ff)) & 0x3ff) ;
296   value |= (uint32_t)((((uint32_t)(CLAMP(src[1], -1, 1) * 0x1ff)) & 0x3ff) << 10) ;
297   value |= (uint32_t)((((uint32_t)(CLAMP(src[0], -1, 1) * 0x1ff)) & 0x3ff) << 20) ;
298   value |= (uint32_t)(((uint32_t)(CLAMP(src[3], -1, 1) * 0x1)) << 30) ;
299#ifdef PIPE_ARCH_BIG_ENDIAN
300   value = util_bswap32(value);
301#endif
302   *(uint32_t *)attrib = value;
303}
304
305static void
306emit_B10G10R10A2_SSCALED( const void *attrib, void *ptr )
307{
308   float *src = (float *)ptr;
309   uint32_t value = 0;
310   value |= (uint32_t)(((uint32_t)CLAMP(src[2], -512, 511)) & 0x3ff) ;
311   value |= (uint32_t)((((uint32_t)CLAMP(src[1], -512, 511)) & 0x3ff) << 10) ;
312   value |= (uint32_t)((((uint32_t)CLAMP(src[0], -512, 511)) & 0x3ff) << 20) ;
313   value |= (uint32_t)(((uint32_t)CLAMP(src[3], -2, 1)) << 30) ;
314#ifdef PIPE_ARCH_BIG_ENDIAN
315   value = util_bswap32(value);
316#endif
317   *(uint32_t *)attrib = value;
318}
319
320static void
321emit_R10G10B10A2_UNORM( const void *attrib, void *ptr )
322{
323   float *src = (float *)ptr;
324   uint32_t value = 0;
325   value |= ((uint32_t)(CLAMP(src[0], 0, 1) * 0x3ff)) & 0x3ff;
326   value |= (((uint32_t)(CLAMP(src[1], 0, 1) * 0x3ff)) & 0x3ff) << 10;
327   value |= (((uint32_t)(CLAMP(src[2], 0, 1) * 0x3ff)) & 0x3ff) << 20;
328   value |= ((uint32_t)(CLAMP(src[3], 0, 1) * 0x3)) << 30;
329#ifdef PIPE_ARCH_BIG_ENDIAN
330   value = util_bswap32(value);
331#endif
332   *(uint32_t *)attrib = value;
333}
334
335static void
336emit_R10G10B10A2_USCALED( const void *attrib, void *ptr )
337{
338   float *src = (float *)ptr;
339   uint32_t value = 0;
340   value |= ((uint32_t)CLAMP(src[0], 0, 1023)) & 0x3ff;
341   value |= (((uint32_t)CLAMP(src[1], 0, 1023)) & 0x3ff) << 10;
342   value |= (((uint32_t)CLAMP(src[2], 0, 1023)) & 0x3ff) << 20;
343   value |= ((uint32_t)CLAMP(src[3], 0, 3)) << 30;
344#ifdef PIPE_ARCH_BIG_ENDIAN
345   value = util_bswap32(value);
346#endif
347   *(uint32_t *)attrib = value;
348}
349
350static void
351emit_R10G10B10A2_SNORM( const void *attrib, void *ptr )
352{
353   float *src = (float *)ptr;
354   uint32_t value = 0;
355   value |= (uint32_t)(((uint32_t)(CLAMP(src[0], -1, 1) * 0x1ff)) & 0x3ff) ;
356   value |= (uint32_t)((((uint32_t)(CLAMP(src[1], -1, 1) * 0x1ff)) & 0x3ff) << 10) ;
357   value |= (uint32_t)((((uint32_t)(CLAMP(src[2], -1, 1) * 0x1ff)) & 0x3ff) << 20) ;
358   value |= (uint32_t)(((uint32_t)(CLAMP(src[3], -1, 1) * 0x1)) << 30) ;
359#ifdef PIPE_ARCH_BIG_ENDIAN
360   value = util_bswap32(value);
361#endif
362   *(uint32_t *)attrib = value;
363}
364
365static void
366emit_R10G10B10A2_SSCALED( const void *attrib, void *ptr)
367{
368   float *src = (float *)ptr;
369   uint32_t value = 0;
370   value |= (uint32_t)(((uint32_t)CLAMP(src[0], -512, 511)) & 0x3ff) ;
371   value |= (uint32_t)((((uint32_t)CLAMP(src[1], -512, 511)) & 0x3ff) << 10) ;
372   value |= (uint32_t)((((uint32_t)CLAMP(src[2], -512, 511)) & 0x3ff) << 20) ;
373   value |= (uint32_t)(((uint32_t)CLAMP(src[3], -2, 1)) << 30) ;
374#ifdef PIPE_ARCH_BIG_ENDIAN
375   value = util_bswap32(value);
376#endif
377   *(uint32_t *)attrib = value;
378}
379
380static void
381emit_NULL( const void *attrib, void *ptr )
382{
383   /* do nothing is the only sensible option */
384}
385
386static emit_func get_emit_func( enum pipe_format format )
387{
388   switch (format) {
389   case PIPE_FORMAT_R64_FLOAT:
390      return &emit_R64_FLOAT;
391   case PIPE_FORMAT_R64G64_FLOAT:
392      return &emit_R64G64_FLOAT;
393   case PIPE_FORMAT_R64G64B64_FLOAT:
394      return &emit_R64G64B64_FLOAT;
395   case PIPE_FORMAT_R64G64B64A64_FLOAT:
396      return &emit_R64G64B64A64_FLOAT;
397
398   case PIPE_FORMAT_R32_FLOAT:
399      return &emit_R32_FLOAT;
400   case PIPE_FORMAT_R32G32_FLOAT:
401      return &emit_R32G32_FLOAT;
402   case PIPE_FORMAT_R32G32B32_FLOAT:
403      return &emit_R32G32B32_FLOAT;
404   case PIPE_FORMAT_R32G32B32A32_FLOAT:
405      return &emit_R32G32B32A32_FLOAT;
406
407   case PIPE_FORMAT_R16_FLOAT:
408      return &emit_R16_FLOAT;
409   case PIPE_FORMAT_R16G16_FLOAT:
410      return &emit_R16G16_FLOAT;
411   case PIPE_FORMAT_R16G16B16_FLOAT:
412      return &emit_R16G16B16_FLOAT;
413   case PIPE_FORMAT_R16G16B16A16_FLOAT:
414      return &emit_R16G16B16A16_FLOAT;
415
416   case PIPE_FORMAT_R32_UNORM:
417      return &emit_R32_UNORM;
418   case PIPE_FORMAT_R32G32_UNORM:
419      return &emit_R32G32_UNORM;
420   case PIPE_FORMAT_R32G32B32_UNORM:
421      return &emit_R32G32B32_UNORM;
422   case PIPE_FORMAT_R32G32B32A32_UNORM:
423      return &emit_R32G32B32A32_UNORM;
424
425   case PIPE_FORMAT_R32_USCALED:
426      return &emit_R32_USCALED;
427   case PIPE_FORMAT_R32G32_USCALED:
428      return &emit_R32G32_USCALED;
429   case PIPE_FORMAT_R32G32B32_USCALED:
430      return &emit_R32G32B32_USCALED;
431   case PIPE_FORMAT_R32G32B32A32_USCALED:
432      return &emit_R32G32B32A32_USCALED;
433
434   case PIPE_FORMAT_R32_SNORM:
435      return &emit_R32_SNORM;
436   case PIPE_FORMAT_R32G32_SNORM:
437      return &emit_R32G32_SNORM;
438   case PIPE_FORMAT_R32G32B32_SNORM:
439      return &emit_R32G32B32_SNORM;
440   case PIPE_FORMAT_R32G32B32A32_SNORM:
441      return &emit_R32G32B32A32_SNORM;
442
443   case PIPE_FORMAT_R32_SSCALED:
444      return &emit_R32_SSCALED;
445   case PIPE_FORMAT_R32G32_SSCALED:
446      return &emit_R32G32_SSCALED;
447   case PIPE_FORMAT_R32G32B32_SSCALED:
448      return &emit_R32G32B32_SSCALED;
449   case PIPE_FORMAT_R32G32B32A32_SSCALED:
450      return &emit_R32G32B32A32_SSCALED;
451
452   case PIPE_FORMAT_R16_UNORM:
453      return &emit_R16_UNORM;
454   case PIPE_FORMAT_R16G16_UNORM:
455      return &emit_R16G16_UNORM;
456   case PIPE_FORMAT_R16G16B16_UNORM:
457      return &emit_R16G16B16_UNORM;
458   case PIPE_FORMAT_R16G16B16A16_UNORM:
459      return &emit_R16G16B16A16_UNORM;
460
461   case PIPE_FORMAT_R16_USCALED:
462      return &emit_R16_USCALED;
463   case PIPE_FORMAT_R16G16_USCALED:
464      return &emit_R16G16_USCALED;
465   case PIPE_FORMAT_R16G16B16_USCALED:
466      return &emit_R16G16B16_USCALED;
467   case PIPE_FORMAT_R16G16B16A16_USCALED:
468      return &emit_R16G16B16A16_USCALED;
469
470   case PIPE_FORMAT_R16_SNORM:
471      return &emit_R16_SNORM;
472   case PIPE_FORMAT_R16G16_SNORM:
473      return &emit_R16G16_SNORM;
474   case PIPE_FORMAT_R16G16B16_SNORM:
475      return &emit_R16G16B16_SNORM;
476   case PIPE_FORMAT_R16G16B16A16_SNORM:
477      return &emit_R16G16B16A16_SNORM;
478
479   case PIPE_FORMAT_R16_SSCALED:
480      return &emit_R16_SSCALED;
481   case PIPE_FORMAT_R16G16_SSCALED:
482      return &emit_R16G16_SSCALED;
483   case PIPE_FORMAT_R16G16B16_SSCALED:
484      return &emit_R16G16B16_SSCALED;
485   case PIPE_FORMAT_R16G16B16A16_SSCALED:
486      return &emit_R16G16B16A16_SSCALED;
487
488   case PIPE_FORMAT_R8_UNORM:
489      return &emit_R8_UNORM;
490   case PIPE_FORMAT_R8G8_UNORM:
491      return &emit_R8G8_UNORM;
492   case PIPE_FORMAT_R8G8B8_UNORM:
493      return &emit_R8G8B8_UNORM;
494   case PIPE_FORMAT_R8G8B8A8_UNORM:
495      return &emit_R8G8B8A8_UNORM;
496
497   case PIPE_FORMAT_R8_USCALED:
498      return &emit_R8_USCALED;
499   case PIPE_FORMAT_R8G8_USCALED:
500      return &emit_R8G8_USCALED;
501   case PIPE_FORMAT_R8G8B8_USCALED:
502      return &emit_R8G8B8_USCALED;
503   case PIPE_FORMAT_R8G8B8A8_USCALED:
504      return &emit_R8G8B8A8_USCALED;
505
506   case PIPE_FORMAT_R8_SNORM:
507      return &emit_R8_SNORM;
508   case PIPE_FORMAT_R8G8_SNORM:
509      return &emit_R8G8_SNORM;
510   case PIPE_FORMAT_R8G8B8_SNORM:
511      return &emit_R8G8B8_SNORM;
512   case PIPE_FORMAT_R8G8B8A8_SNORM:
513      return &emit_R8G8B8A8_SNORM;
514
515   case PIPE_FORMAT_R8_SSCALED:
516      return &emit_R8_SSCALED;
517   case PIPE_FORMAT_R8G8_SSCALED:
518      return &emit_R8G8_SSCALED;
519   case PIPE_FORMAT_R8G8B8_SSCALED:
520      return &emit_R8G8B8_SSCALED;
521   case PIPE_FORMAT_R8G8B8A8_SSCALED:
522      return &emit_R8G8B8A8_SSCALED;
523
524   case PIPE_FORMAT_B8G8R8A8_UNORM:
525      return &emit_B8G8R8A8_UNORM;
526
527   case PIPE_FORMAT_A8R8G8B8_UNORM:
528      return &emit_A8R8G8B8_UNORM;
529
530   case PIPE_FORMAT_R32_UINT:
531      return &emit_R32_UINT;
532   case PIPE_FORMAT_R32G32_UINT:
533      return &emit_R32G32_UINT;
534   case PIPE_FORMAT_R32G32B32_UINT:
535      return &emit_R32G32B32_UINT;
536   case PIPE_FORMAT_R32G32B32A32_UINT:
537      return &emit_R32G32B32A32_UINT;
538
539   case PIPE_FORMAT_R16_UINT:
540      return &emit_R16_UINT;
541   case PIPE_FORMAT_R16G16_UINT:
542      return &emit_R16G16_UINT;
543   case PIPE_FORMAT_R16G16B16_UINT:
544      return &emit_R16G16B16_UINT;
545   case PIPE_FORMAT_R16G16B16A16_UINT:
546      return &emit_R16G16B16A16_UINT;
547
548   case PIPE_FORMAT_R8_UINT:
549      return &emit_R8_UINT;
550   case PIPE_FORMAT_R8G8_UINT:
551      return &emit_R8G8_UINT;
552   case PIPE_FORMAT_R8G8B8_UINT:
553      return &emit_R8G8B8_UINT;
554   case PIPE_FORMAT_R8G8B8A8_UINT:
555      return &emit_R8G8B8A8_UINT;
556
557   case PIPE_FORMAT_R32_SINT:
558      return &emit_R32_SINT;
559   case PIPE_FORMAT_R32G32_SINT:
560      return &emit_R32G32_SINT;
561   case PIPE_FORMAT_R32G32B32_SINT:
562      return &emit_R32G32B32_SINT;
563   case PIPE_FORMAT_R32G32B32A32_SINT:
564      return &emit_R32G32B32A32_SINT;
565
566   case PIPE_FORMAT_R16_SINT:
567      return &emit_R16_SINT;
568   case PIPE_FORMAT_R16G16_SINT:
569      return &emit_R16G16_SINT;
570   case PIPE_FORMAT_R16G16B16_SINT:
571      return &emit_R16G16B16_SINT;
572   case PIPE_FORMAT_R16G16B16A16_SINT:
573      return &emit_R16G16B16A16_SINT;
574
575   case PIPE_FORMAT_R8_SINT:
576      return &emit_R8_SINT;
577   case PIPE_FORMAT_R8G8_SINT:
578      return &emit_R8G8_SINT;
579   case PIPE_FORMAT_R8G8B8_SINT:
580      return &emit_R8G8B8_SINT;
581   case PIPE_FORMAT_R8G8B8A8_SINT:
582      return &emit_R8G8B8A8_SINT;
583
584   case PIPE_FORMAT_B10G10R10A2_UNORM:
585      return &emit_B10G10R10A2_UNORM;
586   case PIPE_FORMAT_B10G10R10A2_USCALED:
587      return &emit_B10G10R10A2_USCALED;
588   case PIPE_FORMAT_B10G10R10A2_SNORM:
589      return &emit_B10G10R10A2_SNORM;
590   case PIPE_FORMAT_B10G10R10A2_SSCALED:
591      return &emit_B10G10R10A2_SSCALED;
592
593   case PIPE_FORMAT_R10G10B10A2_UNORM:
594      return &emit_R10G10B10A2_UNORM;
595   case PIPE_FORMAT_R10G10B10A2_USCALED:
596      return &emit_R10G10B10A2_USCALED;
597   case PIPE_FORMAT_R10G10B10A2_SNORM:
598      return &emit_R10G10B10A2_SNORM;
599   case PIPE_FORMAT_R10G10B10A2_SSCALED:
600      return &emit_R10G10B10A2_SSCALED;
601
602   default:
603      assert(0);
604      return &emit_NULL;
605   }
606}
607
608static ALWAYS_INLINE void PIPE_CDECL generic_run_one( struct translate_generic *tg,
609                                         unsigned elt,
610                                         unsigned instance_id,
611                                         void *vert )
612{
613   unsigned nr_attrs = tg->nr_attrib;
614   unsigned attr;
615
616   for (attr = 0; attr < nr_attrs; attr++) {
617      float data[4];
618      uint8_t *dst = (uint8_t *)vert + tg->attrib[attr].output_offset;
619
620      if (tg->attrib[attr].type == TRANSLATE_ELEMENT_NORMAL) {
621         const uint8_t *src;
622         unsigned index;
623         int copy_size;
624
625         if (tg->attrib[attr].instance_divisor) {
626            index = instance_id / tg->attrib[attr].instance_divisor;
627            /* XXX we need to clamp the index here too, but to a
628             * per-array max value, not the draw->pt.max_index value
629             * that's being given to us via translate->set_buffer().
630             */
631         }
632         else {
633            index = elt;
634            /* clamp to avoid going out of bounds */
635            index = MIN2(index, tg->attrib[attr].max_index);
636         }
637
638         src = tg->attrib[attr].input_ptr +
639               tg->attrib[attr].input_stride * index;
640
641         copy_size = tg->attrib[attr].copy_size;
642         if(likely(copy_size >= 0))
643            memcpy(dst, src, copy_size);
644         else
645         {
646            tg->attrib[attr].fetch( data, src, 0, 0 );
647
648            if (0)
649               debug_printf("Fetch linear attr %d  from %p  stride %d  index %d: "
650                         " %f, %f, %f, %f \n",
651                         attr,
652                         tg->attrib[attr].input_ptr,
653                         tg->attrib[attr].input_stride,
654                         index,
655                         data[0], data[1],data[2], data[3]);
656
657            tg->attrib[attr].emit( data, dst );
658         }
659      } else {
660         if(likely(tg->attrib[attr].copy_size >= 0))
661            memcpy(data, &instance_id, 4);
662         else
663         {
664            data[0] = (float)instance_id;
665            tg->attrib[attr].emit( data, dst );
666         }
667      }
668   }
669}
670
671/**
672 * Fetch vertex attributes for 'count' vertices.
673 */
674static void PIPE_CDECL generic_run_elts( struct translate *translate,
675                                         const unsigned *elts,
676                                         unsigned count,
677                                         unsigned instance_id,
678                                         void *output_buffer )
679{
680   struct translate_generic *tg = translate_generic(translate);
681   char *vert = output_buffer;
682   unsigned i;
683
684   for (i = 0; i < count; i++) {
685      generic_run_one(tg, *elts++, instance_id, vert);
686      vert += tg->translate.key.output_stride;
687   }
688}
689
690static void PIPE_CDECL generic_run_elts16( struct translate *translate,
691                                         const uint16_t *elts,
692                                         unsigned count,
693                                         unsigned instance_id,
694                                         void *output_buffer )
695{
696   struct translate_generic *tg = translate_generic(translate);
697   char *vert = output_buffer;
698   unsigned i;
699
700   for (i = 0; i < count; i++) {
701      generic_run_one(tg, *elts++, instance_id, vert);
702      vert += tg->translate.key.output_stride;
703   }
704}
705
706static void PIPE_CDECL generic_run_elts8( struct translate *translate,
707                                         const uint8_t *elts,
708                                         unsigned count,
709                                         unsigned instance_id,
710                                         void *output_buffer )
711{
712   struct translate_generic *tg = translate_generic(translate);
713   char *vert = output_buffer;
714   unsigned i;
715
716   for (i = 0; i < count; i++) {
717      generic_run_one(tg, *elts++, instance_id, vert);
718      vert += tg->translate.key.output_stride;
719   }
720}
721
722static void PIPE_CDECL generic_run( struct translate *translate,
723                                    unsigned start,
724                                    unsigned count,
725                                    unsigned instance_id,
726                                    void *output_buffer )
727{
728   struct translate_generic *tg = translate_generic(translate);
729   char *vert = output_buffer;
730   unsigned i;
731
732   for (i = 0; i < count; i++) {
733      generic_run_one(tg, start + i, instance_id, vert);
734      vert += tg->translate.key.output_stride;
735   }
736}
737
738
739
740static void generic_set_buffer( struct translate *translate,
741				unsigned buf,
742				const void *ptr,
743				unsigned stride,
744				unsigned max_index )
745{
746   struct translate_generic *tg = translate_generic(translate);
747   unsigned i;
748
749   for (i = 0; i < tg->nr_attrib; i++) {
750      if (tg->attrib[i].buffer == buf) {
751	 tg->attrib[i].input_ptr = ((const uint8_t *)ptr +
752				    tg->attrib[i].input_offset);
753	 tg->attrib[i].input_stride = stride;
754         tg->attrib[i].max_index = max_index;
755      }
756   }
757}
758
759
760static void generic_release( struct translate *translate )
761{
762   /* Refcount?
763    */
764   FREE(translate);
765}
766
767static boolean
768is_legal_int_format_combo( const struct util_format_description *src,
769                           const struct util_format_description *dst )
770{
771   unsigned i;
772   unsigned nr = MIN2(src->nr_channels, dst->nr_channels);
773
774   for (i = 0; i < nr; i++) {
775      /* The signs must match. */
776      if (src->channel[i].type != dst->channel[i].type) {
777         return FALSE;
778      }
779
780      /* Integers must not lose precision at any point in the pipeline. */
781      if (src->channel[i].size > dst->channel[i].size) {
782         return FALSE;
783      }
784   }
785   return TRUE;
786}
787
788struct translate *translate_generic_create( const struct translate_key *key )
789{
790   struct translate_generic *tg = CALLOC_STRUCT(translate_generic);
791   unsigned i;
792
793   if (tg == NULL)
794      return NULL;
795
796   tg->translate.key = *key;
797   tg->translate.release = generic_release;
798   tg->translate.set_buffer = generic_set_buffer;
799   tg->translate.run_elts = generic_run_elts;
800   tg->translate.run_elts16 = generic_run_elts16;
801   tg->translate.run_elts8 = generic_run_elts8;
802   tg->translate.run = generic_run;
803
804   for (i = 0; i < key->nr_elements; i++) {
805      const struct util_format_description *format_desc =
806            util_format_description(key->element[i].input_format);
807
808      assert(format_desc);
809      assert(format_desc->fetch_rgba_float);
810
811      tg->attrib[i].type = key->element[i].type;
812
813      if (format_desc->channel[0].pure_integer) {
814         const struct util_format_description *out_format_desc =
815               util_format_description(key->element[i].output_format);
816
817         if (!is_legal_int_format_combo(format_desc, out_format_desc)) {
818            FREE(tg);
819            return NULL;
820         }
821
822         if (format_desc->channel[0].type == UTIL_FORMAT_TYPE_SIGNED) {
823            tg->attrib[i].fetch = (fetch_func)format_desc->fetch_rgba_sint;
824         } else {
825            tg->attrib[i].fetch = (fetch_func)format_desc->fetch_rgba_uint;
826         }
827      } else {
828         tg->attrib[i].fetch = (fetch_func)format_desc->fetch_rgba_float;
829      }
830
831      tg->attrib[i].buffer = key->element[i].input_buffer;
832      tg->attrib[i].input_offset = key->element[i].input_offset;
833      tg->attrib[i].instance_divisor = key->element[i].instance_divisor;
834
835      tg->attrib[i].output_offset = key->element[i].output_offset;
836
837      tg->attrib[i].copy_size = -1;
838      if (tg->attrib[i].type == TRANSLATE_ELEMENT_INSTANCE_ID)
839      {
840            if(key->element[i].output_format == PIPE_FORMAT_R32_USCALED
841                  || key->element[i].output_format == PIPE_FORMAT_R32_SSCALED)
842               tg->attrib[i].copy_size = 4;
843      }
844      else
845      {
846         if(key->element[i].input_format == key->element[i].output_format
847               && format_desc->block.width == 1
848               && format_desc->block.height == 1
849               && !(format_desc->block.bits & 7))
850            tg->attrib[i].copy_size = format_desc->block.bits >> 3;
851      }
852
853      if(tg->attrib[i].copy_size < 0)
854	      tg->attrib[i].emit = get_emit_func(key->element[i].output_format);
855      else
856	      tg->attrib[i].emit  = NULL;
857   }
858
859   tg->nr_attrib = key->nr_elements;
860
861
862   return &tg->translate;
863}
864
865boolean translate_generic_is_output_format_supported(enum pipe_format format)
866{
867   switch(format)
868   {
869   case PIPE_FORMAT_R64G64B64A64_FLOAT: return TRUE;
870   case PIPE_FORMAT_R64G64B64_FLOAT: return TRUE;
871   case PIPE_FORMAT_R64G64_FLOAT: return TRUE;
872   case PIPE_FORMAT_R64_FLOAT: return TRUE;
873
874   case PIPE_FORMAT_R32G32B32A32_FLOAT: return TRUE;
875   case PIPE_FORMAT_R32G32B32_FLOAT: return TRUE;
876   case PIPE_FORMAT_R32G32_FLOAT: return TRUE;
877   case PIPE_FORMAT_R32_FLOAT: return TRUE;
878
879   case PIPE_FORMAT_R16G16B16A16_FLOAT: return TRUE;
880   case PIPE_FORMAT_R16G16B16_FLOAT: return TRUE;
881   case PIPE_FORMAT_R16G16_FLOAT: return TRUE;
882   case PIPE_FORMAT_R16_FLOAT: return TRUE;
883
884   case PIPE_FORMAT_R32G32B32A32_USCALED: return TRUE;
885   case PIPE_FORMAT_R32G32B32_USCALED: return TRUE;
886   case PIPE_FORMAT_R32G32_USCALED: return TRUE;
887   case PIPE_FORMAT_R32_USCALED: return TRUE;
888
889   case PIPE_FORMAT_R32G32B32A32_SSCALED: return TRUE;
890   case PIPE_FORMAT_R32G32B32_SSCALED: return TRUE;
891   case PIPE_FORMAT_R32G32_SSCALED: return TRUE;
892   case PIPE_FORMAT_R32_SSCALED: return TRUE;
893
894   case PIPE_FORMAT_R32G32B32A32_UNORM: return TRUE;
895   case PIPE_FORMAT_R32G32B32_UNORM: return TRUE;
896   case PIPE_FORMAT_R32G32_UNORM: return TRUE;
897   case PIPE_FORMAT_R32_UNORM: return TRUE;
898
899   case PIPE_FORMAT_R32G32B32A32_SNORM: return TRUE;
900   case PIPE_FORMAT_R32G32B32_SNORM: return TRUE;
901   case PIPE_FORMAT_R32G32_SNORM: return TRUE;
902   case PIPE_FORMAT_R32_SNORM: return TRUE;
903
904   case PIPE_FORMAT_R16G16B16A16_USCALED: return TRUE;
905   case PIPE_FORMAT_R16G16B16_USCALED: return TRUE;
906   case PIPE_FORMAT_R16G16_USCALED: return TRUE;
907   case PIPE_FORMAT_R16_USCALED: return TRUE;
908
909   case PIPE_FORMAT_R16G16B16A16_SSCALED: return TRUE;
910   case PIPE_FORMAT_R16G16B16_SSCALED: return TRUE;
911   case PIPE_FORMAT_R16G16_SSCALED: return TRUE;
912   case PIPE_FORMAT_R16_SSCALED: return TRUE;
913
914   case PIPE_FORMAT_R16G16B16A16_UNORM: return TRUE;
915   case PIPE_FORMAT_R16G16B16_UNORM: return TRUE;
916   case PIPE_FORMAT_R16G16_UNORM: return TRUE;
917   case PIPE_FORMAT_R16_UNORM: return TRUE;
918
919   case PIPE_FORMAT_R16G16B16A16_SNORM: return TRUE;
920   case PIPE_FORMAT_R16G16B16_SNORM: return TRUE;
921   case PIPE_FORMAT_R16G16_SNORM: return TRUE;
922   case PIPE_FORMAT_R16_SNORM: return TRUE;
923
924   case PIPE_FORMAT_R8G8B8A8_USCALED: return TRUE;
925   case PIPE_FORMAT_R8G8B8_USCALED: return TRUE;
926   case PIPE_FORMAT_R8G8_USCALED: return TRUE;
927   case PIPE_FORMAT_R8_USCALED: return TRUE;
928
929   case PIPE_FORMAT_R8G8B8A8_SSCALED: return TRUE;
930   case PIPE_FORMAT_R8G8B8_SSCALED: return TRUE;
931   case PIPE_FORMAT_R8G8_SSCALED: return TRUE;
932   case PIPE_FORMAT_R8_SSCALED: return TRUE;
933
934   case PIPE_FORMAT_R8G8B8A8_UNORM: return TRUE;
935   case PIPE_FORMAT_R8G8B8_UNORM: return TRUE;
936   case PIPE_FORMAT_R8G8_UNORM: return TRUE;
937   case PIPE_FORMAT_R8_UNORM: return TRUE;
938
939   case PIPE_FORMAT_R8G8B8A8_SNORM: return TRUE;
940   case PIPE_FORMAT_R8G8B8_SNORM: return TRUE;
941   case PIPE_FORMAT_R8G8_SNORM: return TRUE;
942   case PIPE_FORMAT_R8_SNORM: return TRUE;
943
944   case PIPE_FORMAT_A8R8G8B8_UNORM: return TRUE;
945   case PIPE_FORMAT_B8G8R8A8_UNORM: return TRUE;
946
947   case PIPE_FORMAT_R32G32B32A32_UINT: return TRUE;
948   case PIPE_FORMAT_R32G32B32_UINT: return TRUE;
949   case PIPE_FORMAT_R32G32_UINT: return TRUE;
950   case PIPE_FORMAT_R32_UINT: return TRUE;
951
952   case PIPE_FORMAT_R16G16B16A16_UINT: return TRUE;
953   case PIPE_FORMAT_R16G16B16_UINT: return TRUE;
954   case PIPE_FORMAT_R16G16_UINT: return TRUE;
955   case PIPE_FORMAT_R16_UINT: return TRUE;
956
957   case PIPE_FORMAT_R8G8B8A8_UINT: return TRUE;
958   case PIPE_FORMAT_R8G8B8_UINT: return TRUE;
959   case PIPE_FORMAT_R8G8_UINT: return TRUE;
960   case PIPE_FORMAT_R8_UINT: return TRUE;
961
962   case PIPE_FORMAT_R32G32B32A32_SINT: return TRUE;
963   case PIPE_FORMAT_R32G32B32_SINT: return TRUE;
964   case PIPE_FORMAT_R32G32_SINT: return TRUE;
965   case PIPE_FORMAT_R32_SINT: return TRUE;
966
967   case PIPE_FORMAT_R16G16B16A16_SINT: return TRUE;
968   case PIPE_FORMAT_R16G16B16_SINT: return TRUE;
969   case PIPE_FORMAT_R16G16_SINT: return TRUE;
970   case PIPE_FORMAT_R16_SINT: return TRUE;
971
972   case PIPE_FORMAT_R8G8B8A8_SINT: return TRUE;
973   case PIPE_FORMAT_R8G8B8_SINT: return TRUE;
974   case PIPE_FORMAT_R8G8_SINT: return TRUE;
975   case PIPE_FORMAT_R8_SINT: return TRUE;
976
977   case PIPE_FORMAT_B10G10R10A2_UNORM: return TRUE;
978   case PIPE_FORMAT_B10G10R10A2_USCALED: return TRUE;
979   case PIPE_FORMAT_B10G10R10A2_SNORM: return TRUE;
980   case PIPE_FORMAT_B10G10R10A2_SSCALED: return TRUE;
981
982   case PIPE_FORMAT_R10G10B10A2_UNORM: return TRUE;
983   case PIPE_FORMAT_R10G10B10A2_USCALED: return TRUE;
984   case PIPE_FORMAT_R10G10B10A2_SNORM: return TRUE;
985   case PIPE_FORMAT_R10G10B10A2_SSCALED: return TRUE;
986
987   default: return FALSE;
988   }
989}
990