1 /*
2 * Copyright 2009 Joakim Sindholt <opensource@zhasha.com>
3 * Corbin Simpson <MostAwesomeDude@gmail.com>
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * on the rights to use, copy, modify, merge, publish, distribute, sub
9 * license, and/or sell copies of the Software, and to permit persons to whom
10 * the Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
22 * USE OR OTHER DEALINGS IN THE SOFTWARE. */
23
24 #ifndef R300_STATE_INLINES_H
25 #define R300_STATE_INLINES_H
26
27 #include "draw/draw_vertex.h"
28 #include "pipe/p_format.h"
29 #include "util/u_format.h"
30 #include "r300_reg.h"
31 #include <stdio.h>
32
33 /* Some maths. These should probably find their way to u_math, if needed. */
34
pack_float_16_6x(float f)35 static inline int pack_float_16_6x(float f) {
36 return ((int)(f * 6.0) & 0xffff);
37 }
38
39 /* Blend state. */
40
r300_translate_blend_function(int blend_func,boolean clamp)41 static inline uint32_t r300_translate_blend_function(int blend_func,
42 boolean clamp)
43 {
44 switch (blend_func) {
45 case PIPE_BLEND_ADD:
46 return clamp ? R300_COMB_FCN_ADD_CLAMP : R300_COMB_FCN_ADD_NOCLAMP;
47 case PIPE_BLEND_SUBTRACT:
48 return clamp ? R300_COMB_FCN_SUB_CLAMP : R300_COMB_FCN_SUB_NOCLAMP;
49 case PIPE_BLEND_REVERSE_SUBTRACT:
50 return clamp ? R300_COMB_FCN_RSUB_CLAMP : R300_COMB_FCN_RSUB_NOCLAMP;
51 case PIPE_BLEND_MIN:
52 return R300_COMB_FCN_MIN;
53 case PIPE_BLEND_MAX:
54 return R300_COMB_FCN_MAX;
55 default:
56 fprintf(stderr, "r300: Unknown blend function %d\n", blend_func);
57 assert(0);
58 break;
59 }
60 return 0;
61 }
62
r300_translate_blend_factor(int blend_fact)63 static inline uint32_t r300_translate_blend_factor(int blend_fact)
64 {
65 switch (blend_fact) {
66 case PIPE_BLENDFACTOR_ONE:
67 return R300_BLEND_GL_ONE;
68 case PIPE_BLENDFACTOR_SRC_COLOR:
69 return R300_BLEND_GL_SRC_COLOR;
70 case PIPE_BLENDFACTOR_SRC_ALPHA:
71 return R300_BLEND_GL_SRC_ALPHA;
72 case PIPE_BLENDFACTOR_DST_ALPHA:
73 return R300_BLEND_GL_DST_ALPHA;
74 case PIPE_BLENDFACTOR_DST_COLOR:
75 return R300_BLEND_GL_DST_COLOR;
76 case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE:
77 return R300_BLEND_GL_SRC_ALPHA_SATURATE;
78 case PIPE_BLENDFACTOR_CONST_COLOR:
79 return R300_BLEND_GL_CONST_COLOR;
80 case PIPE_BLENDFACTOR_CONST_ALPHA:
81 return R300_BLEND_GL_CONST_ALPHA;
82 case PIPE_BLENDFACTOR_ZERO:
83 return R300_BLEND_GL_ZERO;
84 case PIPE_BLENDFACTOR_INV_SRC_COLOR:
85 return R300_BLEND_GL_ONE_MINUS_SRC_COLOR;
86 case PIPE_BLENDFACTOR_INV_SRC_ALPHA:
87 return R300_BLEND_GL_ONE_MINUS_SRC_ALPHA;
88 case PIPE_BLENDFACTOR_INV_DST_ALPHA:
89 return R300_BLEND_GL_ONE_MINUS_DST_ALPHA;
90 case PIPE_BLENDFACTOR_INV_DST_COLOR:
91 return R300_BLEND_GL_ONE_MINUS_DST_COLOR;
92 case PIPE_BLENDFACTOR_INV_CONST_COLOR:
93 return R300_BLEND_GL_ONE_MINUS_CONST_COLOR;
94 case PIPE_BLENDFACTOR_INV_CONST_ALPHA:
95 return R300_BLEND_GL_ONE_MINUS_CONST_ALPHA;
96
97 case PIPE_BLENDFACTOR_SRC1_COLOR:
98 case PIPE_BLENDFACTOR_SRC1_ALPHA:
99 case PIPE_BLENDFACTOR_INV_SRC1_COLOR:
100 case PIPE_BLENDFACTOR_INV_SRC1_ALPHA:
101 fprintf(stderr, "r300: Implementation error: "
102 "Bad blend factor %d not supported!\n", blend_fact);
103 assert(0);
104 break;
105
106 default:
107 fprintf(stderr, "r300: Unknown blend factor %d\n", blend_fact);
108 assert(0);
109 break;
110 }
111 return 0;
112 }
113
114 /* DSA state. */
115
r300_translate_depth_stencil_function(int zs_func)116 static inline uint32_t r300_translate_depth_stencil_function(int zs_func)
117 {
118 switch (zs_func) {
119 case PIPE_FUNC_NEVER:
120 return R300_ZS_NEVER;
121 case PIPE_FUNC_LESS:
122 return R300_ZS_LESS;
123 case PIPE_FUNC_EQUAL:
124 return R300_ZS_EQUAL;
125 case PIPE_FUNC_LEQUAL:
126 return R300_ZS_LEQUAL;
127 case PIPE_FUNC_GREATER:
128 return R300_ZS_GREATER;
129 case PIPE_FUNC_NOTEQUAL:
130 return R300_ZS_NOTEQUAL;
131 case PIPE_FUNC_GEQUAL:
132 return R300_ZS_GEQUAL;
133 case PIPE_FUNC_ALWAYS:
134 return R300_ZS_ALWAYS;
135 default:
136 fprintf(stderr, "r300: Unknown depth/stencil function %d\n",
137 zs_func);
138 assert(0);
139 break;
140 }
141 return 0;
142 }
143
r300_translate_stencil_op(int s_op)144 static inline uint32_t r300_translate_stencil_op(int s_op)
145 {
146 switch (s_op) {
147 case PIPE_STENCIL_OP_KEEP:
148 return R300_ZS_KEEP;
149 case PIPE_STENCIL_OP_ZERO:
150 return R300_ZS_ZERO;
151 case PIPE_STENCIL_OP_REPLACE:
152 return R300_ZS_REPLACE;
153 case PIPE_STENCIL_OP_INCR:
154 return R300_ZS_INCR;
155 case PIPE_STENCIL_OP_DECR:
156 return R300_ZS_DECR;
157 case PIPE_STENCIL_OP_INCR_WRAP:
158 return R300_ZS_INCR_WRAP;
159 case PIPE_STENCIL_OP_DECR_WRAP:
160 return R300_ZS_DECR_WRAP;
161 case PIPE_STENCIL_OP_INVERT:
162 return R300_ZS_INVERT;
163 default:
164 fprintf(stderr, "r300: Unknown stencil op %d", s_op);
165 assert(0);
166 break;
167 }
168 return 0;
169 }
170
r300_translate_alpha_function(int alpha_func)171 static inline uint32_t r300_translate_alpha_function(int alpha_func)
172 {
173 switch (alpha_func) {
174 case PIPE_FUNC_NEVER:
175 return R300_FG_ALPHA_FUNC_NEVER;
176 case PIPE_FUNC_LESS:
177 return R300_FG_ALPHA_FUNC_LESS;
178 case PIPE_FUNC_EQUAL:
179 return R300_FG_ALPHA_FUNC_EQUAL;
180 case PIPE_FUNC_LEQUAL:
181 return R300_FG_ALPHA_FUNC_LE;
182 case PIPE_FUNC_GREATER:
183 return R300_FG_ALPHA_FUNC_GREATER;
184 case PIPE_FUNC_NOTEQUAL:
185 return R300_FG_ALPHA_FUNC_NOTEQUAL;
186 case PIPE_FUNC_GEQUAL:
187 return R300_FG_ALPHA_FUNC_GE;
188 case PIPE_FUNC_ALWAYS:
189 return R300_FG_ALPHA_FUNC_ALWAYS;
190 default:
191 fprintf(stderr, "r300: Unknown alpha function %d", alpha_func);
192 assert(0);
193 break;
194 }
195 return 0;
196 }
197
198 static inline uint32_t
r300_translate_polygon_mode_front(unsigned mode)199 r300_translate_polygon_mode_front(unsigned mode) {
200 switch (mode)
201 {
202 case PIPE_POLYGON_MODE_FILL:
203 return R300_GA_POLY_MODE_FRONT_PTYPE_TRI;
204 case PIPE_POLYGON_MODE_LINE:
205 return R300_GA_POLY_MODE_FRONT_PTYPE_LINE;
206 case PIPE_POLYGON_MODE_POINT:
207 return R300_GA_POLY_MODE_FRONT_PTYPE_POINT;
208
209 default:
210 fprintf(stderr, "r300: Bad polygon mode %i in %s\n", mode,
211 __FUNCTION__);
212 return R300_GA_POLY_MODE_FRONT_PTYPE_TRI;
213 }
214 }
215
216 static inline uint32_t
r300_translate_polygon_mode_back(unsigned mode)217 r300_translate_polygon_mode_back(unsigned mode) {
218 switch (mode)
219 {
220 case PIPE_POLYGON_MODE_FILL:
221 return R300_GA_POLY_MODE_BACK_PTYPE_TRI;
222 case PIPE_POLYGON_MODE_LINE:
223 return R300_GA_POLY_MODE_BACK_PTYPE_LINE;
224 case PIPE_POLYGON_MODE_POINT:
225 return R300_GA_POLY_MODE_BACK_PTYPE_POINT;
226
227 default:
228 fprintf(stderr, "r300: Bad polygon mode %i in %s\n", mode,
229 __FUNCTION__);
230 return R300_GA_POLY_MODE_BACK_PTYPE_TRI;
231 }
232 }
233
234 /* Texture sampler state. */
235
r300_translate_wrap(int wrap)236 static inline uint32_t r300_translate_wrap(int wrap)
237 {
238 switch (wrap) {
239 case PIPE_TEX_WRAP_REPEAT:
240 return R300_TX_REPEAT;
241 case PIPE_TEX_WRAP_CLAMP:
242 return R300_TX_CLAMP;
243 case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
244 return R300_TX_CLAMP_TO_EDGE;
245 case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
246 return R300_TX_CLAMP_TO_BORDER;
247 case PIPE_TEX_WRAP_MIRROR_REPEAT:
248 return R300_TX_REPEAT | R300_TX_MIRRORED;
249 case PIPE_TEX_WRAP_MIRROR_CLAMP:
250 return R300_TX_CLAMP | R300_TX_MIRRORED;
251 case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE:
252 return R300_TX_CLAMP_TO_EDGE | R300_TX_MIRRORED;
253 case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER:
254 return R300_TX_CLAMP_TO_BORDER | R300_TX_MIRRORED;
255 default:
256 fprintf(stderr, "r300: Unknown texture wrap %d", wrap);
257 assert(0);
258 return 0;
259 }
260 }
261
r300_translate_tex_filters(int min,int mag,int mip,boolean is_anisotropic)262 static inline uint32_t r300_translate_tex_filters(int min, int mag, int mip,
263 boolean is_anisotropic)
264 {
265 uint32_t retval = 0;
266
267 switch (min) {
268 case PIPE_TEX_FILTER_NEAREST:
269 retval |= R300_TX_MIN_FILTER_NEAREST;
270 break;
271 case PIPE_TEX_FILTER_LINEAR:
272 retval |= is_anisotropic ? R300_TX_MIN_FILTER_ANISO :
273 R300_TX_MIN_FILTER_LINEAR;
274 break;
275 default:
276 fprintf(stderr, "r300: Unknown texture filter %d\n", min);
277 assert(0);
278 }
279
280 switch (mag) {
281 case PIPE_TEX_FILTER_NEAREST:
282 retval |= R300_TX_MAG_FILTER_NEAREST;
283 break;
284 case PIPE_TEX_FILTER_LINEAR:
285 retval |= is_anisotropic ? R300_TX_MAG_FILTER_ANISO :
286 R300_TX_MAG_FILTER_LINEAR;
287 break;
288 default:
289 fprintf(stderr, "r300: Unknown texture filter %d\n", mag);
290 assert(0);
291 }
292
293 switch (mip) {
294 case PIPE_TEX_MIPFILTER_NONE:
295 retval |= R300_TX_MIN_FILTER_MIP_NONE;
296 break;
297 case PIPE_TEX_MIPFILTER_NEAREST:
298 retval |= R300_TX_MIN_FILTER_MIP_NEAREST;
299 break;
300 case PIPE_TEX_MIPFILTER_LINEAR:
301 retval |= R300_TX_MIN_FILTER_MIP_LINEAR;
302 break;
303 default:
304 fprintf(stderr, "r300: Unknown texture filter %d\n", mip);
305 assert(0);
306 }
307
308 return retval;
309 }
310
r300_anisotropy(unsigned max_aniso)311 static inline uint32_t r300_anisotropy(unsigned max_aniso)
312 {
313 if (max_aniso >= 16) {
314 return R300_TX_MAX_ANISO_16_TO_1;
315 } else if (max_aniso >= 8) {
316 return R300_TX_MAX_ANISO_8_TO_1;
317 } else if (max_aniso >= 4) {
318 return R300_TX_MAX_ANISO_4_TO_1;
319 } else if (max_aniso >= 2) {
320 return R300_TX_MAX_ANISO_2_TO_1;
321 } else {
322 return R300_TX_MAX_ANISO_1_TO_1;
323 }
324 }
325
r500_anisotropy(unsigned max_aniso)326 static inline uint32_t r500_anisotropy(unsigned max_aniso)
327 {
328 if (!max_aniso) {
329 return 0;
330 }
331 max_aniso -= 1;
332
333 // Map the range [0, 15] to [0, 63].
334 return R500_TX_MAX_ANISO(MIN2((unsigned)(max_aniso*4.2001), 63)) |
335 R500_TX_ANISO_HIGH_QUALITY;
336 }
337
338 /* Translate pipe_formats into PSC vertex types. */
339 static inline uint16_t
r300_translate_vertex_data_type(enum pipe_format format)340 r300_translate_vertex_data_type(enum pipe_format format) {
341 uint32_t result = 0;
342 const struct util_format_description *desc;
343 unsigned i;
344
345 if (!format)
346 format = PIPE_FORMAT_R32_FLOAT;
347
348 desc = util_format_description(format);
349
350 if (desc->layout != UTIL_FORMAT_LAYOUT_PLAIN) {
351 return R300_INVALID_FORMAT;
352 }
353
354 /* Find the first non-VOID channel. */
355 for (i = 0; i < 4; i++) {
356 if (desc->channel[i].type != UTIL_FORMAT_TYPE_VOID) {
357 break;
358 }
359 }
360
361 switch (desc->channel[i].type) {
362 /* Half-floats, floats, doubles */
363 case UTIL_FORMAT_TYPE_FLOAT:
364 switch (desc->channel[i].size) {
365 case 16:
366 /* Supported only on RV350 and later. */
367 if (desc->nr_channels > 2) {
368 result = R300_DATA_TYPE_FLT16_4;
369 } else {
370 result = R300_DATA_TYPE_FLT16_2;
371 }
372 break;
373 case 32:
374 result = R300_DATA_TYPE_FLOAT_1 + (desc->nr_channels - 1);
375 break;
376 default:
377 return R300_INVALID_FORMAT;
378 }
379 break;
380 /* Unsigned ints */
381 case UTIL_FORMAT_TYPE_UNSIGNED:
382 /* Signed ints */
383 case UTIL_FORMAT_TYPE_SIGNED:
384 switch (desc->channel[i].size) {
385 case 8:
386 result = R300_DATA_TYPE_BYTE;
387 break;
388 case 16:
389 if (desc->nr_channels > 2) {
390 result = R300_DATA_TYPE_SHORT_4;
391 } else {
392 result = R300_DATA_TYPE_SHORT_2;
393 }
394 break;
395 default:
396 return R300_INVALID_FORMAT;
397 }
398 break;
399 default:
400 return R300_INVALID_FORMAT;
401 }
402
403 if (desc->channel[i].type == UTIL_FORMAT_TYPE_SIGNED) {
404 result |= R300_SIGNED;
405 }
406 if (desc->channel[i].normalized) {
407 result |= R300_NORMALIZE;
408 }
409
410 return result;
411 }
412
413 static inline uint16_t
r300_translate_vertex_data_swizzle(enum pipe_format format)414 r300_translate_vertex_data_swizzle(enum pipe_format format) {
415 const struct util_format_description *desc;
416 unsigned i, swizzle = 0;
417
418 if (!format)
419 return (R300_SWIZZLE_SELECT_FP_ZERO << R300_SWIZZLE_SELECT_X_SHIFT) |
420 (R300_SWIZZLE_SELECT_FP_ZERO << R300_SWIZZLE_SELECT_Y_SHIFT) |
421 (R300_SWIZZLE_SELECT_FP_ZERO << R300_SWIZZLE_SELECT_Z_SHIFT) |
422 (R300_SWIZZLE_SELECT_FP_ONE << R300_SWIZZLE_SELECT_W_SHIFT);
423
424 desc = util_format_description(format);
425
426 if (desc->layout != UTIL_FORMAT_LAYOUT_PLAIN) {
427 fprintf(stderr, "r300: Bad format %s in %s:%d\n",
428 util_format_short_name(format), __FUNCTION__, __LINE__);
429 return 0;
430 }
431
432 for (i = 0; i < desc->nr_channels; i++) {
433 swizzle |=
434 MIN2(desc->swizzle[i], R300_SWIZZLE_SELECT_FP_ONE) << (3*i);
435 }
436 /* Set (0,0,0,1) in unused components. */
437 for (; i < 3; i++) {
438 swizzle |= R300_SWIZZLE_SELECT_FP_ZERO << (3*i);
439 }
440 for (; i < 4; i++) {
441 swizzle |= R300_SWIZZLE_SELECT_FP_ONE << (3*i);
442 }
443
444 return swizzle | (0xf << R300_WRITE_ENA_SHIFT);
445 }
446
447 #endif /* R300_STATE_INLINES_H */
448