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1 /*
2  * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
3  * Copyright 2009 Marek Olšák <maraeo@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 #include "draw/draw_context.h"
25 
26 #include "util/u_framebuffer.h"
27 #include "util/u_half.h"
28 #include "util/u_helpers.h"
29 #include "util/u_math.h"
30 #include "util/u_memory.h"
31 #include "util/u_pack_color.h"
32 #include "util/u_transfer.h"
33 
34 #include "tgsi/tgsi_parse.h"
35 
36 #include "pipe/p_config.h"
37 
38 #include "r300_cb.h"
39 #include "r300_context.h"
40 #include "r300_emit.h"
41 #include "r300_reg.h"
42 #include "r300_screen.h"
43 #include "r300_screen_buffer.h"
44 #include "r300_state_inlines.h"
45 #include "r300_fs.h"
46 #include "r300_texture.h"
47 #include "r300_vs.h"
48 
49 /* r300_state: Functions used to intialize state context by translating
50  * Gallium state objects into semi-native r300 state objects. */
51 
52 #define UPDATE_STATE(cso, atom) \
53     if (cso != atom.state) { \
54         atom.state = cso;    \
55         r300_mark_atom_dirty(r300, &(atom));   \
56     }
57 
blend_discard_if_src_alpha_0(unsigned srcRGB,unsigned srcA,unsigned dstRGB,unsigned dstA)58 static boolean blend_discard_if_src_alpha_0(unsigned srcRGB, unsigned srcA,
59                                             unsigned dstRGB, unsigned dstA)
60 {
61     /* If the blend equation is ADD or REVERSE_SUBTRACT,
62      * SRC_ALPHA == 0, and the following state is set, the colorbuffer
63      * will not be changed.
64      * Notice that the dst factors are the src factors inverted. */
65     return (srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA ||
66             srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE ||
67             srcRGB == PIPE_BLENDFACTOR_ZERO) &&
68            (srcA == PIPE_BLENDFACTOR_SRC_COLOR ||
69             srcA == PIPE_BLENDFACTOR_SRC_ALPHA ||
70             srcA == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE ||
71             srcA == PIPE_BLENDFACTOR_ZERO) &&
72            (dstRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA ||
73             dstRGB == PIPE_BLENDFACTOR_ONE) &&
74            (dstA == PIPE_BLENDFACTOR_INV_SRC_COLOR ||
75             dstA == PIPE_BLENDFACTOR_INV_SRC_ALPHA ||
76             dstA == PIPE_BLENDFACTOR_ONE);
77 }
78 
blend_discard_if_src_alpha_1(unsigned srcRGB,unsigned srcA,unsigned dstRGB,unsigned dstA)79 static boolean blend_discard_if_src_alpha_1(unsigned srcRGB, unsigned srcA,
80                                             unsigned dstRGB, unsigned dstA)
81 {
82     /* If the blend equation is ADD or REVERSE_SUBTRACT,
83      * SRC_ALPHA == 1, and the following state is set, the colorbuffer
84      * will not be changed.
85      * Notice that the dst factors are the src factors inverted. */
86     return (srcRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA ||
87             srcRGB == PIPE_BLENDFACTOR_ZERO) &&
88            (srcA == PIPE_BLENDFACTOR_INV_SRC_COLOR ||
89             srcA == PIPE_BLENDFACTOR_INV_SRC_ALPHA ||
90             srcA == PIPE_BLENDFACTOR_ZERO) &&
91            (dstRGB == PIPE_BLENDFACTOR_SRC_ALPHA ||
92             dstRGB == PIPE_BLENDFACTOR_ONE) &&
93            (dstA == PIPE_BLENDFACTOR_SRC_COLOR ||
94             dstA == PIPE_BLENDFACTOR_SRC_ALPHA ||
95             dstA == PIPE_BLENDFACTOR_ONE);
96 }
97 
blend_discard_if_src_color_0(unsigned srcRGB,unsigned srcA,unsigned dstRGB,unsigned dstA)98 static boolean blend_discard_if_src_color_0(unsigned srcRGB, unsigned srcA,
99                                             unsigned dstRGB, unsigned dstA)
100 {
101     /* If the blend equation is ADD or REVERSE_SUBTRACT,
102      * SRC_COLOR == (0,0,0), and the following state is set, the colorbuffer
103      * will not be changed.
104      * Notice that the dst factors are the src factors inverted. */
105     return (srcRGB == PIPE_BLENDFACTOR_SRC_COLOR ||
106             srcRGB == PIPE_BLENDFACTOR_ZERO) &&
107            (srcA == PIPE_BLENDFACTOR_ZERO) &&
108            (dstRGB == PIPE_BLENDFACTOR_INV_SRC_COLOR ||
109             dstRGB == PIPE_BLENDFACTOR_ONE) &&
110            (dstA == PIPE_BLENDFACTOR_ONE);
111 }
112 
blend_discard_if_src_color_1(unsigned srcRGB,unsigned srcA,unsigned dstRGB,unsigned dstA)113 static boolean blend_discard_if_src_color_1(unsigned srcRGB, unsigned srcA,
114                                             unsigned dstRGB, unsigned dstA)
115 {
116     /* If the blend equation is ADD or REVERSE_SUBTRACT,
117      * SRC_COLOR == (1,1,1), and the following state is set, the colorbuffer
118      * will not be changed.
119      * Notice that the dst factors are the src factors inverted. */
120     return (srcRGB == PIPE_BLENDFACTOR_INV_SRC_COLOR ||
121             srcRGB == PIPE_BLENDFACTOR_ZERO) &&
122            (srcA == PIPE_BLENDFACTOR_ZERO) &&
123            (dstRGB == PIPE_BLENDFACTOR_SRC_COLOR ||
124             dstRGB == PIPE_BLENDFACTOR_ONE) &&
125            (dstA == PIPE_BLENDFACTOR_ONE);
126 }
127 
blend_discard_if_src_alpha_color_0(unsigned srcRGB,unsigned srcA,unsigned dstRGB,unsigned dstA)128 static boolean blend_discard_if_src_alpha_color_0(unsigned srcRGB, unsigned srcA,
129                                                   unsigned dstRGB, unsigned dstA)
130 {
131     /* If the blend equation is ADD or REVERSE_SUBTRACT,
132      * SRC_ALPHA_COLOR == (0,0,0,0), and the following state is set,
133      * the colorbuffer will not be changed.
134      * Notice that the dst factors are the src factors inverted. */
135     return (srcRGB == PIPE_BLENDFACTOR_SRC_COLOR ||
136             srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA ||
137             srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE ||
138             srcRGB == PIPE_BLENDFACTOR_ZERO) &&
139            (srcA == PIPE_BLENDFACTOR_SRC_COLOR ||
140             srcA == PIPE_BLENDFACTOR_SRC_ALPHA ||
141             srcA == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE ||
142             srcA == PIPE_BLENDFACTOR_ZERO) &&
143            (dstRGB == PIPE_BLENDFACTOR_INV_SRC_COLOR ||
144             dstRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA ||
145             dstRGB == PIPE_BLENDFACTOR_ONE) &&
146            (dstA == PIPE_BLENDFACTOR_INV_SRC_COLOR ||
147             dstA == PIPE_BLENDFACTOR_INV_SRC_ALPHA ||
148             dstA == PIPE_BLENDFACTOR_ONE);
149 }
150 
blend_discard_if_src_alpha_color_1(unsigned srcRGB,unsigned srcA,unsigned dstRGB,unsigned dstA)151 static boolean blend_discard_if_src_alpha_color_1(unsigned srcRGB, unsigned srcA,
152                                                   unsigned dstRGB, unsigned dstA)
153 {
154     /* If the blend equation is ADD or REVERSE_SUBTRACT,
155      * SRC_ALPHA_COLOR == (1,1,1,1), and the following state is set,
156      * the colorbuffer will not be changed.
157      * Notice that the dst factors are the src factors inverted. */
158     return (srcRGB == PIPE_BLENDFACTOR_INV_SRC_COLOR ||
159             srcRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA ||
160             srcRGB == PIPE_BLENDFACTOR_ZERO) &&
161            (srcA == PIPE_BLENDFACTOR_INV_SRC_COLOR ||
162             srcA == PIPE_BLENDFACTOR_INV_SRC_ALPHA ||
163             srcA == PIPE_BLENDFACTOR_ZERO) &&
164            (dstRGB == PIPE_BLENDFACTOR_SRC_COLOR ||
165             dstRGB == PIPE_BLENDFACTOR_SRC_ALPHA ||
166             dstRGB == PIPE_BLENDFACTOR_ONE) &&
167            (dstA == PIPE_BLENDFACTOR_SRC_COLOR ||
168             dstA == PIPE_BLENDFACTOR_SRC_ALPHA ||
169             dstA == PIPE_BLENDFACTOR_ONE);
170 }
171 
blend_discard_conditionally(unsigned eqRGB,unsigned eqA,unsigned dstRGB,unsigned dstA,unsigned srcRGB,unsigned srcA)172 static unsigned blend_discard_conditionally(unsigned eqRGB, unsigned eqA,
173                                             unsigned dstRGB, unsigned dstA,
174                                             unsigned srcRGB, unsigned srcA)
175 {
176     unsigned blend_control = 0;
177 
178     /* Optimization: discard pixels which don't change the colorbuffer.
179      *
180      * The code below is non-trivial and some math is involved.
181      *
182      * Discarding pixels must be disabled when FP16 AA is enabled.
183      * This is a hardware bug. Also, this implementation wouldn't work
184      * with FP blending enabled and equation clamping disabled.
185      *
186      * Equations other than ADD are rarely used and therefore won't be
187      * optimized. */
188     if ((eqRGB == PIPE_BLEND_ADD || eqRGB == PIPE_BLEND_REVERSE_SUBTRACT) &&
189         (eqA == PIPE_BLEND_ADD || eqA == PIPE_BLEND_REVERSE_SUBTRACT)) {
190         /* ADD: X+Y
191          * REVERSE_SUBTRACT: Y-X
192          *
193          * The idea is:
194          * If X = src*srcFactor = 0 and Y = dst*dstFactor = 1,
195          * then CB will not be changed.
196          *
197          * Given the srcFactor and dstFactor variables, we can derive
198          * what src and dst should be equal to and discard appropriate
199          * pixels.
200          */
201         if (blend_discard_if_src_alpha_0(srcRGB, srcA, dstRGB, dstA)) {
202             blend_control |= R300_DISCARD_SRC_PIXELS_SRC_ALPHA_0;
203         } else if (blend_discard_if_src_alpha_1(srcRGB, srcA,
204                                                 dstRGB, dstA)) {
205             blend_control |= R300_DISCARD_SRC_PIXELS_SRC_ALPHA_1;
206         } else if (blend_discard_if_src_color_0(srcRGB, srcA,
207                                                 dstRGB, dstA)) {
208             blend_control |= R300_DISCARD_SRC_PIXELS_SRC_COLOR_0;
209         } else if (blend_discard_if_src_color_1(srcRGB, srcA,
210                                                 dstRGB, dstA)) {
211             blend_control |= R300_DISCARD_SRC_PIXELS_SRC_COLOR_1;
212         } else if (blend_discard_if_src_alpha_color_0(srcRGB, srcA,
213                                                       dstRGB, dstA)) {
214             blend_control |=
215                 R300_DISCARD_SRC_PIXELS_SRC_ALPHA_COLOR_0;
216         } else if (blend_discard_if_src_alpha_color_1(srcRGB, srcA,
217                                                       dstRGB, dstA)) {
218             blend_control |=
219                 R300_DISCARD_SRC_PIXELS_SRC_ALPHA_COLOR_1;
220         }
221     }
222     return blend_control;
223 }
224 
225 /* The hardware colormask is clunky a must be swizzled depending on the format.
226  * This was figured out by trial-and-error. */
bgra_cmask(unsigned mask)227 static unsigned bgra_cmask(unsigned mask)
228 {
229     return ((mask & PIPE_MASK_R) << 2) |
230            ((mask & PIPE_MASK_B) >> 2) |
231            (mask & (PIPE_MASK_G | PIPE_MASK_A));
232 }
233 
rgba_cmask(unsigned mask)234 static unsigned rgba_cmask(unsigned mask)
235 {
236     return mask & PIPE_MASK_RGBA;
237 }
238 
rrrr_cmask(unsigned mask)239 static unsigned rrrr_cmask(unsigned mask)
240 {
241     return (mask & PIPE_MASK_R) |
242            ((mask & PIPE_MASK_R) << 1) |
243            ((mask & PIPE_MASK_R) << 2) |
244            ((mask & PIPE_MASK_R) << 3);
245 }
246 
aaaa_cmask(unsigned mask)247 static unsigned aaaa_cmask(unsigned mask)
248 {
249     return ((mask & PIPE_MASK_A) >> 3) |
250            ((mask & PIPE_MASK_A) >> 2) |
251            ((mask & PIPE_MASK_A) >> 1) |
252            (mask & PIPE_MASK_A);
253 }
254 
grrg_cmask(unsigned mask)255 static unsigned grrg_cmask(unsigned mask)
256 {
257     return ((mask & PIPE_MASK_R) << 1) |
258            ((mask & PIPE_MASK_R) << 2) |
259            ((mask & PIPE_MASK_G) >> 1) |
260            ((mask & PIPE_MASK_G) << 2);
261 }
262 
arra_cmask(unsigned mask)263 static unsigned arra_cmask(unsigned mask)
264 {
265     return ((mask & PIPE_MASK_R) << 1) |
266            ((mask & PIPE_MASK_R) << 2) |
267            ((mask & PIPE_MASK_A) >> 3) |
268            (mask & PIPE_MASK_A);
269 }
270 
blend_read_enable(unsigned eqRGB,unsigned eqA,unsigned dstRGB,unsigned dstA,unsigned srcRGB,unsigned srcA,boolean src_alpha_optz)271 static unsigned blend_read_enable(unsigned eqRGB, unsigned eqA,
272                                   unsigned dstRGB, unsigned dstA,
273                                   unsigned srcRGB, unsigned srcA,
274                                   boolean src_alpha_optz)
275 {
276     unsigned blend_control = 0;
277 
278     /* Optimization: some operations do not require the destination color.
279      *
280      * When SRC_ALPHA_SATURATE is used, colorbuffer reads must be enabled,
281      * otherwise blending gives incorrect results. It seems to be
282      * a hardware bug. */
283     if (eqRGB == PIPE_BLEND_MIN || eqA == PIPE_BLEND_MIN ||
284         eqRGB == PIPE_BLEND_MAX || eqA == PIPE_BLEND_MAX ||
285         dstRGB != PIPE_BLENDFACTOR_ZERO ||
286         dstA != PIPE_BLENDFACTOR_ZERO ||
287         srcRGB == PIPE_BLENDFACTOR_DST_COLOR ||
288         srcRGB == PIPE_BLENDFACTOR_DST_ALPHA ||
289         srcRGB == PIPE_BLENDFACTOR_INV_DST_COLOR ||
290         srcRGB == PIPE_BLENDFACTOR_INV_DST_ALPHA ||
291         srcA == PIPE_BLENDFACTOR_DST_COLOR ||
292         srcA == PIPE_BLENDFACTOR_DST_ALPHA ||
293         srcA == PIPE_BLENDFACTOR_INV_DST_COLOR ||
294         srcA == PIPE_BLENDFACTOR_INV_DST_ALPHA ||
295         srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE) {
296         /* Enable reading from the colorbuffer. */
297         blend_control |= R300_READ_ENABLE;
298 
299         if (src_alpha_optz) {
300             /* Optimization: Depending on incoming pixels, we can
301              * conditionally disable the reading in hardware... */
302             if (eqRGB != PIPE_BLEND_MIN && eqA != PIPE_BLEND_MIN &&
303                 eqRGB != PIPE_BLEND_MAX && eqA != PIPE_BLEND_MAX) {
304                 /* Disable reading if SRC_ALPHA == 0. */
305                 if ((dstRGB == PIPE_BLENDFACTOR_SRC_ALPHA ||
306                      dstRGB == PIPE_BLENDFACTOR_ZERO) &&
307                     (dstA == PIPE_BLENDFACTOR_SRC_COLOR ||
308                      dstA == PIPE_BLENDFACTOR_SRC_ALPHA ||
309                      dstA == PIPE_BLENDFACTOR_ZERO) &&
310                     (srcRGB != PIPE_BLENDFACTOR_DST_COLOR &&
311                      srcRGB != PIPE_BLENDFACTOR_DST_ALPHA &&
312                      srcRGB != PIPE_BLENDFACTOR_INV_DST_COLOR &&
313                      srcRGB != PIPE_BLENDFACTOR_INV_DST_ALPHA)) {
314                      blend_control |= R500_SRC_ALPHA_0_NO_READ;
315                 }
316 
317                 /* Disable reading if SRC_ALPHA == 1. */
318                 if ((dstRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA ||
319                      dstRGB == PIPE_BLENDFACTOR_ZERO) &&
320                     (dstA == PIPE_BLENDFACTOR_INV_SRC_COLOR ||
321                      dstA == PIPE_BLENDFACTOR_INV_SRC_ALPHA ||
322                      dstA == PIPE_BLENDFACTOR_ZERO) &&
323                     (srcRGB != PIPE_BLENDFACTOR_DST_COLOR &&
324                      srcRGB != PIPE_BLENDFACTOR_DST_ALPHA &&
325                      srcRGB != PIPE_BLENDFACTOR_INV_DST_COLOR &&
326                      srcRGB != PIPE_BLENDFACTOR_INV_DST_ALPHA)) {
327                      blend_control |= R500_SRC_ALPHA_1_NO_READ;
328                 }
329             }
330         }
331     }
332     return blend_control;
333 }
334 
335 /* Create a new blend state based on the CSO blend state.
336  *
337  * This encompasses alpha blending, logic/raster ops, and blend dithering. */
r300_create_blend_state(struct pipe_context * pipe,const struct pipe_blend_state * state)338 static void* r300_create_blend_state(struct pipe_context* pipe,
339                                      const struct pipe_blend_state* state)
340 {
341     struct r300_screen* r300screen = r300_screen(pipe->screen);
342     struct r300_blend_state* blend = CALLOC_STRUCT(r300_blend_state);
343     uint32_t blend_control = 0;       /* R300_RB3D_CBLEND: 0x4e04 */
344     uint32_t blend_control_noclamp = 0;    /* R300_RB3D_CBLEND: 0x4e04 */
345     uint32_t blend_control_noalpha = 0;    /* R300_RB3D_CBLEND: 0x4e04 */
346     uint32_t blend_control_noalpha_noclamp = 0;    /* R300_RB3D_CBLEND: 0x4e04 */
347     uint32_t alpha_blend_control = 0; /* R300_RB3D_ABLEND: 0x4e08 */
348     uint32_t alpha_blend_control_noclamp = 0; /* R300_RB3D_ABLEND: 0x4e08 */
349     uint32_t alpha_blend_control_noalpha = 0; /* R300_RB3D_ABLEND: 0x4e08 */
350     uint32_t alpha_blend_control_noalpha_noclamp = 0; /* R300_RB3D_ABLEND: 0x4e08 */
351     uint32_t rop = 0;                 /* R300_RB3D_ROPCNTL: 0x4e18 */
352     uint32_t dither = 0;              /* R300_RB3D_DITHER_CTL: 0x4e50 */
353     int i;
354 
355     const unsigned eqRGB = state->rt[0].rgb_func;
356     const unsigned srcRGB = state->rt[0].rgb_src_factor;
357     const unsigned dstRGB = state->rt[0].rgb_dst_factor;
358 
359     const unsigned eqA = state->rt[0].alpha_func;
360     const unsigned srcA = state->rt[0].alpha_src_factor;
361     const unsigned dstA = state->rt[0].alpha_dst_factor;
362 
363     unsigned srcRGBX = srcRGB;
364     unsigned dstRGBX = dstRGB;
365     CB_LOCALS;
366 
367     blend->state = *state;
368 
369     /* force DST_ALPHA to ONE where we can */
370     switch (srcRGBX) {
371     case PIPE_BLENDFACTOR_DST_ALPHA:
372         srcRGBX = PIPE_BLENDFACTOR_ONE;
373         break;
374     case PIPE_BLENDFACTOR_INV_DST_ALPHA:
375         srcRGBX = PIPE_BLENDFACTOR_ZERO;
376         break;
377     }
378 
379     switch (dstRGBX) {
380     case PIPE_BLENDFACTOR_DST_ALPHA:
381         dstRGBX = PIPE_BLENDFACTOR_ONE;
382         break;
383     case PIPE_BLENDFACTOR_INV_DST_ALPHA:
384         dstRGBX = PIPE_BLENDFACTOR_ZERO;
385         break;
386     }
387 
388     /* Get blending register values. */
389     if (state->rt[0].blend_enable) {
390         unsigned blend_eq, blend_eq_noclamp;
391 
392         /* despite the name, ALPHA_BLEND_ENABLE has nothing to do with alpha,
393          * this is just the crappy D3D naming */
394         blend_control = blend_control_noclamp =
395             R300_ALPHA_BLEND_ENABLE |
396             ( r300_translate_blend_factor(srcRGB) << R300_SRC_BLEND_SHIFT) |
397             ( r300_translate_blend_factor(dstRGB) << R300_DST_BLEND_SHIFT);
398 
399         blend_control_noalpha = blend_control_noalpha_noclamp =
400             R300_ALPHA_BLEND_ENABLE |
401             ( r300_translate_blend_factor(srcRGBX) << R300_SRC_BLEND_SHIFT) |
402             ( r300_translate_blend_factor(dstRGBX) << R300_DST_BLEND_SHIFT);
403 
404         blend_eq = r300_translate_blend_function(eqRGB, TRUE);
405         blend_eq_noclamp = r300_translate_blend_function(eqRGB, FALSE);
406 
407         blend_control |= blend_eq;
408         blend_control_noalpha |= blend_eq;
409         blend_control_noclamp |= blend_eq_noclamp;
410         blend_control_noalpha_noclamp |= blend_eq_noclamp;
411 
412         /* Optimization: some operations do not require the destination color. */
413         blend_control |= blend_read_enable(eqRGB, eqA, dstRGB, dstA,
414                                            srcRGB, srcA, r300screen->caps.is_r500);
415         blend_control_noclamp |= blend_read_enable(eqRGB, eqA, dstRGB, dstA,
416                                                    srcRGB, srcA, FALSE);
417         blend_control_noalpha |= blend_read_enable(eqRGB, eqA, dstRGBX, dstA,
418                                                    srcRGBX, srcA, r300screen->caps.is_r500);
419         blend_control_noalpha_noclamp |= blend_read_enable(eqRGB, eqA, dstRGBX, dstA,
420                                                            srcRGBX, srcA, FALSE);
421 
422         /* Optimization: discard pixels which don't change the colorbuffer.
423          * It cannot be used with FP16 AA. */
424         blend_control |= blend_discard_conditionally(eqRGB, eqA, dstRGB, dstA,
425                                                      srcRGB, srcA);
426         blend_control_noalpha |= blend_discard_conditionally(eqRGB, eqA, dstRGBX, dstA,
427                                                              srcRGBX, srcA);
428 
429         /* separate alpha */
430         if (srcA != srcRGB || dstA != dstRGB || eqA != eqRGB) {
431             blend_control |= R300_SEPARATE_ALPHA_ENABLE;
432             blend_control_noclamp |= R300_SEPARATE_ALPHA_ENABLE;
433 
434             alpha_blend_control = alpha_blend_control_noclamp =
435                 (r300_translate_blend_factor(srcA) << R300_SRC_BLEND_SHIFT) |
436                 (r300_translate_blend_factor(dstA) << R300_DST_BLEND_SHIFT);
437             alpha_blend_control |= r300_translate_blend_function(eqA, TRUE);
438             alpha_blend_control_noclamp |= r300_translate_blend_function(eqA, FALSE);
439         }
440         if (srcA != srcRGBX || dstA != dstRGBX || eqA != eqRGB) {
441             blend_control_noalpha |= R300_SEPARATE_ALPHA_ENABLE;
442             blend_control_noalpha_noclamp |= R300_SEPARATE_ALPHA_ENABLE;
443 
444             alpha_blend_control_noalpha = alpha_blend_control_noalpha_noclamp =
445                 (r300_translate_blend_factor(srcA) << R300_SRC_BLEND_SHIFT) |
446                 (r300_translate_blend_factor(dstA) << R300_DST_BLEND_SHIFT);
447             alpha_blend_control_noalpha |= r300_translate_blend_function(eqA, TRUE);
448             alpha_blend_control_noalpha_noclamp |= r300_translate_blend_function(eqA, FALSE);
449         }
450     }
451 
452     /* PIPE_LOGICOP_* don't need to be translated, fortunately. */
453     if (state->logicop_enable) {
454         rop = R300_RB3D_ROPCNTL_ROP_ENABLE |
455                 (state->logicop_func) << R300_RB3D_ROPCNTL_ROP_SHIFT;
456     }
457 
458     /* Neither fglrx nor classic r300 ever set this, regardless of dithering
459      * state. Since it's an optional implementation detail, we can leave it
460      * out and never dither.
461      *
462      * This could be revisited if we ever get quality or conformance hints.
463      *
464     if (state->dither) {
465         dither = R300_RB3D_DITHER_CTL_DITHER_MODE_LUT |
466                         R300_RB3D_DITHER_CTL_ALPHA_DITHER_MODE_LUT;
467     }
468     */
469 
470     /* Build a command buffer. */
471     {
472         unsigned (*func[COLORMASK_NUM_SWIZZLES])(unsigned) = {
473             bgra_cmask,
474             rgba_cmask,
475             rrrr_cmask,
476             aaaa_cmask,
477             grrg_cmask,
478             arra_cmask,
479             bgra_cmask,
480             rgba_cmask
481         };
482 
483         for (i = 0; i < COLORMASK_NUM_SWIZZLES; i++) {
484             boolean has_alpha = i != COLORMASK_RGBX && i != COLORMASK_BGRX;
485 
486             BEGIN_CB(blend->cb_clamp[i], 8);
487             OUT_CB_REG(R300_RB3D_ROPCNTL, rop);
488             OUT_CB_REG_SEQ(R300_RB3D_CBLEND, 3);
489             OUT_CB(has_alpha ? blend_control : blend_control_noalpha);
490             OUT_CB(has_alpha ? alpha_blend_control : alpha_blend_control_noalpha);
491             OUT_CB(func[i](state->rt[0].colormask));
492             OUT_CB_REG(R300_RB3D_DITHER_CTL, dither);
493             END_CB;
494         }
495     }
496 
497     /* Build a command buffer (for RGBA16F). */
498     BEGIN_CB(blend->cb_noclamp, 8);
499     OUT_CB_REG(R300_RB3D_ROPCNTL, rop);
500     OUT_CB_REG_SEQ(R300_RB3D_CBLEND, 3);
501     OUT_CB(blend_control_noclamp);
502     OUT_CB(alpha_blend_control_noclamp);
503     OUT_CB(rgba_cmask(state->rt[0].colormask));
504     OUT_CB_REG(R300_RB3D_DITHER_CTL, dither);
505     END_CB;
506 
507     /* Build a command buffer (for RGB16F). */
508     BEGIN_CB(blend->cb_noclamp_noalpha, 8);
509     OUT_CB_REG(R300_RB3D_ROPCNTL, rop);
510     OUT_CB_REG_SEQ(R300_RB3D_CBLEND, 3);
511     OUT_CB(blend_control_noalpha_noclamp);
512     OUT_CB(alpha_blend_control_noalpha_noclamp);
513     OUT_CB(rgba_cmask(state->rt[0].colormask));
514     OUT_CB_REG(R300_RB3D_DITHER_CTL, dither);
515     END_CB;
516 
517     /* The same as above, but with no colorbuffer reads and writes. */
518     BEGIN_CB(blend->cb_no_readwrite, 8);
519     OUT_CB_REG(R300_RB3D_ROPCNTL, rop);
520     OUT_CB_REG_SEQ(R300_RB3D_CBLEND, 3);
521     OUT_CB(0);
522     OUT_CB(0);
523     OUT_CB(0);
524     OUT_CB_REG(R300_RB3D_DITHER_CTL, dither);
525     END_CB;
526 
527     return (void*)blend;
528 }
529 
530 /* Bind blend state. */
r300_bind_blend_state(struct pipe_context * pipe,void * state)531 static void r300_bind_blend_state(struct pipe_context* pipe,
532                                   void* state)
533 {
534     struct r300_context* r300 = r300_context(pipe);
535     struct r300_blend_state *blend  = (struct r300_blend_state*)state;
536     boolean last_alpha_to_one = r300->alpha_to_one;
537     boolean last_alpha_to_coverage = r300->alpha_to_coverage;
538 
539     UPDATE_STATE(state, r300->blend_state);
540 
541     if (!blend)
542         return;
543 
544     r300->alpha_to_one = blend->state.alpha_to_one;
545     r300->alpha_to_coverage = blend->state.alpha_to_coverage;
546 
547     if (r300->alpha_to_one != last_alpha_to_one && r300->msaa_enable &&
548         r300->fs_status == FRAGMENT_SHADER_VALID) {
549         r300->fs_status = FRAGMENT_SHADER_MAYBE_DIRTY;
550     }
551 
552     if (r300->alpha_to_coverage != last_alpha_to_coverage &&
553         r300->msaa_enable) {
554         r300_mark_atom_dirty(r300, &r300->dsa_state);
555     }
556 }
557 
558 /* Free blend state. */
r300_delete_blend_state(struct pipe_context * pipe,void * state)559 static void r300_delete_blend_state(struct pipe_context* pipe,
560                                     void* state)
561 {
562     FREE(state);
563 }
564 
565 /* Convert float to 10bit integer */
float_to_fixed10(float f)566 static unsigned float_to_fixed10(float f)
567 {
568     return CLAMP((unsigned)(f * 1023.9f), 0, 1023);
569 }
570 
571 /* Set blend color.
572  * Setup both R300 and R500 registers, figure out later which one to write. */
r300_set_blend_color(struct pipe_context * pipe,const struct pipe_blend_color * color)573 static void r300_set_blend_color(struct pipe_context* pipe,
574                                  const struct pipe_blend_color* color)
575 {
576     struct r300_context* r300 = r300_context(pipe);
577     struct pipe_framebuffer_state *fb = r300->fb_state.state;
578     struct r300_blend_color_state *state =
579         (struct r300_blend_color_state*)r300->blend_color_state.state;
580     struct pipe_blend_color c;
581     struct pipe_surface *cb;
582     float tmp;
583     CB_LOCALS;
584 
585     state->state = *color; /* Save it, so that we can reuse it in set_fb_state */
586     c = *color;
587     cb = fb->nr_cbufs ? r300_get_nonnull_cb(fb, 0) : NULL;
588 
589     /* The blend color is dependent on the colorbuffer format. */
590     if (cb) {
591         switch (cb->format) {
592         case PIPE_FORMAT_R8_UNORM:
593         case PIPE_FORMAT_L8_UNORM:
594         case PIPE_FORMAT_I8_UNORM:
595             c.color[1] = c.color[0];
596             break;
597 
598         case PIPE_FORMAT_A8_UNORM:
599             c.color[1] = c.color[3];
600             break;
601 
602         case PIPE_FORMAT_R8G8_UNORM:
603             c.color[2] = c.color[1];
604             break;
605 
606         case PIPE_FORMAT_L8A8_UNORM:
607         case PIPE_FORMAT_R8A8_UNORM:
608             c.color[2] = c.color[3];
609             break;
610 
611         case PIPE_FORMAT_R8G8B8A8_UNORM:
612         case PIPE_FORMAT_R8G8B8X8_UNORM:
613             tmp = c.color[0];
614             c.color[0] = c.color[2];
615             c.color[2] = tmp;
616             break;
617 
618         default:;
619         }
620     }
621 
622     if (r300->screen->caps.is_r500) {
623         BEGIN_CB(state->cb, 3);
624         OUT_CB_REG_SEQ(R500_RB3D_CONSTANT_COLOR_AR, 2);
625 
626         switch (cb ? cb->format : 0) {
627         case PIPE_FORMAT_R16G16B16A16_FLOAT:
628         case PIPE_FORMAT_R16G16B16X16_FLOAT:
629             OUT_CB(util_float_to_half(c.color[2]) |
630                    (util_float_to_half(c.color[3]) << 16));
631             OUT_CB(util_float_to_half(c.color[0]) |
632                    (util_float_to_half(c.color[1]) << 16));
633             break;
634 
635         default:
636             OUT_CB(float_to_fixed10(c.color[0]) |
637                    (float_to_fixed10(c.color[3]) << 16));
638             OUT_CB(float_to_fixed10(c.color[2]) |
639                    (float_to_fixed10(c.color[1]) << 16));
640         }
641 
642         END_CB;
643     } else {
644         union util_color uc;
645         util_pack_color(c.color, PIPE_FORMAT_B8G8R8A8_UNORM, &uc);
646 
647         BEGIN_CB(state->cb, 2);
648         OUT_CB_REG(R300_RB3D_BLEND_COLOR, uc.ui[0]);
649         END_CB;
650     }
651 
652     r300_mark_atom_dirty(r300, &r300->blend_color_state);
653 }
654 
r300_set_clip_state(struct pipe_context * pipe,const struct pipe_clip_state * state)655 static void r300_set_clip_state(struct pipe_context* pipe,
656                                 const struct pipe_clip_state* state)
657 {
658     struct r300_context* r300 = r300_context(pipe);
659     struct r300_clip_state *clip =
660             (struct r300_clip_state*)r300->clip_state.state;
661     CB_LOCALS;
662 
663     if (r300->screen->caps.has_tcl) {
664         BEGIN_CB(clip->cb, r300->clip_state.size);
665         OUT_CB_REG(R300_VAP_PVS_VECTOR_INDX_REG,
666                    (r300->screen->caps.is_r500 ?
667                     R500_PVS_UCP_START : R300_PVS_UCP_START));
668         OUT_CB_ONE_REG(R300_VAP_PVS_UPLOAD_DATA, 6 * 4);
669         OUT_CB_TABLE(state->ucp, 6 * 4);
670         END_CB;
671 
672         r300_mark_atom_dirty(r300, &r300->clip_state);
673     } else {
674         draw_set_clip_state(r300->draw, state);
675     }
676 }
677 
678 /* Create a new depth, stencil, and alpha state based on the CSO dsa state.
679  *
680  * This contains the depth buffer, stencil buffer, alpha test, and such.
681  * On the Radeon, depth and stencil buffer setup are intertwined, which is
682  * the reason for some of the strange-looking assignments across registers. */
r300_create_dsa_state(struct pipe_context * pipe,const struct pipe_depth_stencil_alpha_state * state)683 static void* r300_create_dsa_state(struct pipe_context* pipe,
684                           const struct pipe_depth_stencil_alpha_state* state)
685 {
686     boolean is_r500 = r300_screen(pipe->screen)->caps.is_r500;
687     struct r300_dsa_state* dsa = CALLOC_STRUCT(r300_dsa_state);
688     CB_LOCALS;
689     uint32_t alpha_value_fp16 = 0;
690     uint32_t z_buffer_control = 0;
691     uint32_t z_stencil_control = 0;
692     uint32_t stencil_ref_mask = 0;
693     uint32_t stencil_ref_bf = 0;
694 
695     dsa->dsa = *state;
696 
697     /* Depth test setup. - separate write mask depth for decomp flush */
698     if (state->depth.writemask) {
699         z_buffer_control |= R300_Z_WRITE_ENABLE;
700     }
701 
702     if (state->depth.enabled) {
703         z_buffer_control |= R300_Z_ENABLE;
704 
705         z_stencil_control |=
706             (r300_translate_depth_stencil_function(state->depth.func) <<
707                 R300_Z_FUNC_SHIFT);
708     }
709 
710     /* Stencil buffer setup. */
711     if (state->stencil[0].enabled) {
712         z_buffer_control |= R300_STENCIL_ENABLE;
713         z_stencil_control |=
714             (r300_translate_depth_stencil_function(state->stencil[0].func) <<
715                 R300_S_FRONT_FUNC_SHIFT) |
716             (r300_translate_stencil_op(state->stencil[0].fail_op) <<
717                 R300_S_FRONT_SFAIL_OP_SHIFT) |
718             (r300_translate_stencil_op(state->stencil[0].zpass_op) <<
719                 R300_S_FRONT_ZPASS_OP_SHIFT) |
720             (r300_translate_stencil_op(state->stencil[0].zfail_op) <<
721                 R300_S_FRONT_ZFAIL_OP_SHIFT);
722 
723         stencil_ref_mask =
724                 (state->stencil[0].valuemask << R300_STENCILMASK_SHIFT) |
725                 (state->stencil[0].writemask << R300_STENCILWRITEMASK_SHIFT);
726 
727         if (state->stencil[1].enabled) {
728             dsa->two_sided = TRUE;
729 
730             z_buffer_control |= R300_STENCIL_FRONT_BACK;
731             z_stencil_control |=
732             (r300_translate_depth_stencil_function(state->stencil[1].func) <<
733                 R300_S_BACK_FUNC_SHIFT) |
734             (r300_translate_stencil_op(state->stencil[1].fail_op) <<
735                 R300_S_BACK_SFAIL_OP_SHIFT) |
736             (r300_translate_stencil_op(state->stencil[1].zpass_op) <<
737                 R300_S_BACK_ZPASS_OP_SHIFT) |
738             (r300_translate_stencil_op(state->stencil[1].zfail_op) <<
739                 R300_S_BACK_ZFAIL_OP_SHIFT);
740 
741             stencil_ref_bf =
742                 (state->stencil[1].valuemask << R300_STENCILMASK_SHIFT) |
743                 (state->stencil[1].writemask << R300_STENCILWRITEMASK_SHIFT);
744 
745             if (is_r500) {
746                 z_buffer_control |= R500_STENCIL_REFMASK_FRONT_BACK;
747             } else {
748                 dsa->two_sided_stencil_ref =
749                   (state->stencil[0].valuemask != state->stencil[1].valuemask ||
750                    state->stencil[0].writemask != state->stencil[1].writemask);
751             }
752         }
753     }
754 
755     /* Alpha test setup. */
756     if (state->alpha.enabled) {
757         dsa->alpha_function =
758             r300_translate_alpha_function(state->alpha.func) |
759             R300_FG_ALPHA_FUNC_ENABLE;
760 
761         dsa->alpha_function |= float_to_ubyte(state->alpha.ref_value);
762         alpha_value_fp16 = util_float_to_half(state->alpha.ref_value);
763     }
764 
765     BEGIN_CB(&dsa->cb_begin, 8);
766     OUT_CB_REG_SEQ(R300_ZB_CNTL, 3);
767     OUT_CB(z_buffer_control);
768     OUT_CB(z_stencil_control);
769     OUT_CB(stencil_ref_mask);
770     OUT_CB_REG(R500_ZB_STENCILREFMASK_BF, stencil_ref_bf);
771     OUT_CB_REG(R500_FG_ALPHA_VALUE, alpha_value_fp16);
772     END_CB;
773 
774     BEGIN_CB(dsa->cb_zb_no_readwrite, 8);
775     OUT_CB_REG_SEQ(R300_ZB_CNTL, 3);
776     OUT_CB(0);
777     OUT_CB(0);
778     OUT_CB(0);
779     OUT_CB_REG(R500_ZB_STENCILREFMASK_BF, 0);
780     OUT_CB_REG(R500_FG_ALPHA_VALUE, alpha_value_fp16);
781     END_CB;
782 
783     return (void*)dsa;
784 }
785 
r300_dsa_inject_stencilref(struct r300_context * r300)786 static void r300_dsa_inject_stencilref(struct r300_context *r300)
787 {
788     struct r300_dsa_state *dsa =
789             (struct r300_dsa_state*)r300->dsa_state.state;
790 
791     if (!dsa)
792         return;
793 
794     dsa->stencil_ref_mask =
795         (dsa->stencil_ref_mask & ~R300_STENCILREF_MASK) |
796         r300->stencil_ref.ref_value[0];
797     dsa->stencil_ref_bf =
798         (dsa->stencil_ref_bf & ~R300_STENCILREF_MASK) |
799         r300->stencil_ref.ref_value[1];
800 }
801 
802 /* Bind DSA state. */
r300_bind_dsa_state(struct pipe_context * pipe,void * state)803 static void r300_bind_dsa_state(struct pipe_context* pipe,
804                                 void* state)
805 {
806     struct r300_context* r300 = r300_context(pipe);
807 
808     if (!state) {
809         return;
810     }
811 
812     UPDATE_STATE(state, r300->dsa_state);
813 
814     r300_mark_atom_dirty(r300, &r300->hyperz_state); /* Will be updated before the emission. */
815     r300_dsa_inject_stencilref(r300);
816 }
817 
818 /* Free DSA state. */
r300_delete_dsa_state(struct pipe_context * pipe,void * state)819 static void r300_delete_dsa_state(struct pipe_context* pipe,
820                                   void* state)
821 {
822     FREE(state);
823 }
824 
r300_set_stencil_ref(struct pipe_context * pipe,const struct pipe_stencil_ref * sr)825 static void r300_set_stencil_ref(struct pipe_context* pipe,
826                                  const struct pipe_stencil_ref* sr)
827 {
828     struct r300_context* r300 = r300_context(pipe);
829 
830     r300->stencil_ref = *sr;
831 
832     r300_dsa_inject_stencilref(r300);
833     r300_mark_atom_dirty(r300, &r300->dsa_state);
834 }
835 
r300_print_fb_surf_info(struct pipe_surface * surf,unsigned index,const char * binding)836 static void r300_print_fb_surf_info(struct pipe_surface *surf, unsigned index,
837                                     const char *binding)
838 {
839     struct pipe_resource *tex = surf->texture;
840     struct r300_resource *rtex = r300_resource(tex);
841 
842     fprintf(stderr,
843             "r300:   %s[%i] Dim: %ix%i, Firstlayer: %i, "
844             "Lastlayer: %i, Level: %i, Format: %s\n"
845 
846             "r300:     TEX: Macro: %s, Micro: %s, "
847             "Dim: %ix%ix%i, LastLevel: %i, Format: %s\n",
848 
849             binding, index, surf->width, surf->height,
850             surf->u.tex.first_layer, surf->u.tex.last_layer, surf->u.tex.level,
851             util_format_short_name(surf->format),
852 
853             rtex->tex.macrotile[0] ? "YES" : " NO",
854             rtex->tex.microtile ? "YES" : " NO",
855             tex->width0, tex->height0, tex->depth0,
856             tex->last_level, util_format_short_name(surf->format));
857 }
858 
r300_mark_fb_state_dirty(struct r300_context * r300,enum r300_fb_state_change change)859 void r300_mark_fb_state_dirty(struct r300_context *r300,
860                               enum r300_fb_state_change change)
861 {
862     struct pipe_framebuffer_state *state = r300->fb_state.state;
863 
864     r300_mark_atom_dirty(r300, &r300->gpu_flush);
865     r300_mark_atom_dirty(r300, &r300->fb_state);
866 
867     /* What is marked as dirty depends on the enum r300_fb_state_change. */
868     if (change == R300_CHANGED_FB_STATE) {
869         r300_mark_atom_dirty(r300, &r300->aa_state);
870         r300_mark_atom_dirty(r300, &r300->dsa_state); /* for AlphaRef */
871         r300_set_blend_color(&r300->context, r300->blend_color_state.state);
872     }
873 
874     if (change == R300_CHANGED_FB_STATE ||
875         change == R300_CHANGED_HYPERZ_FLAG) {
876         r300_mark_atom_dirty(r300, &r300->hyperz_state);
877     }
878 
879     if (change == R300_CHANGED_FB_STATE ||
880         change == R300_CHANGED_MULTIWRITE) {
881         r300_mark_atom_dirty(r300, &r300->fb_state_pipelined);
882     }
883 
884     /* Now compute the fb_state atom size. */
885     r300->fb_state.size = 2 + (8 * state->nr_cbufs);
886 
887     if (r300->cbzb_clear)
888         r300->fb_state.size += 10;
889     else if (state->zsbuf) {
890         r300->fb_state.size += 10;
891         if (r300->hyperz_enabled)
892             r300->fb_state.size += 8;
893     }
894 
895     if (r300->cmask_in_use) {
896         r300->fb_state.size += 6;
897         if (r300->screen->caps.is_r500 && r300->screen->info.drm_minor >= 29) {
898             r300->fb_state.size += 3;
899         }
900     }
901 
902     /* The size of the rest of atoms stays the same. */
903 }
904 
905 static void
r300_set_framebuffer_state(struct pipe_context * pipe,const struct pipe_framebuffer_state * state)906 r300_set_framebuffer_state(struct pipe_context* pipe,
907                            const struct pipe_framebuffer_state* state)
908 {
909     struct r300_context* r300 = r300_context(pipe);
910     struct r300_aa_state *aa = (struct r300_aa_state*)r300->aa_state.state;
911     struct pipe_framebuffer_state *current_state = r300->fb_state.state;
912     unsigned max_width, max_height, i;
913     uint32_t zbuffer_bpp = 0;
914     boolean unlock_zbuffer = FALSE;
915 
916     if (r300->screen->caps.is_r500) {
917         max_width = max_height = 4096;
918     } else if (r300->screen->caps.is_r400) {
919         max_width = max_height = 4021;
920     } else {
921         max_width = max_height = 2560;
922     }
923 
924     if (state->width > max_width || state->height > max_height) {
925         fprintf(stderr, "r300: Implementation error: Render targets are too "
926         "big in %s, refusing to bind framebuffer state!\n", __FUNCTION__);
927         return;
928     }
929 
930     if (current_state->zsbuf && r300->zmask_in_use && !r300->locked_zbuffer) {
931         /* There is a zmask in use, what are we gonna do? */
932         if (state->zsbuf) {
933             if (!pipe_surface_equal(current_state->zsbuf, state->zsbuf)) {
934                 /* Decompress the currently bound zbuffer before we bind another one. */
935                 r300_decompress_zmask(r300);
936                 r300->hiz_in_use = FALSE;
937             }
938         } else {
939             /* We don't bind another zbuffer, so lock the current one. */
940             pipe_surface_reference(&r300->locked_zbuffer, current_state->zsbuf);
941         }
942     } else if (r300->locked_zbuffer) {
943         /* We have a locked zbuffer now, what are we gonna do? */
944         if (state->zsbuf) {
945             if (!pipe_surface_equal(r300->locked_zbuffer, state->zsbuf)) {
946                 /* We are binding some other zbuffer, so decompress the locked one,
947                  * it gets unlocked automatically. */
948                 r300_decompress_zmask_locked_unsafe(r300);
949                 r300->hiz_in_use = FALSE;
950             } else {
951                 /* We are binding the locked zbuffer again, so unlock it. */
952                 unlock_zbuffer = TRUE;
953             }
954         }
955     }
956     assert(state->zsbuf || (r300->locked_zbuffer && !unlock_zbuffer) || !r300->zmask_in_use);
957 
958     /* If zsbuf is set from NULL to non-NULL or vice versa.. */
959     if (!!current_state->zsbuf != !!state->zsbuf) {
960         r300_mark_atom_dirty(r300, &r300->dsa_state);
961     }
962 
963     util_copy_framebuffer_state(r300->fb_state.state, state);
964 
965     /* Remove trailing NULL colorbuffers. */
966     while (current_state->nr_cbufs && !current_state->cbufs[current_state->nr_cbufs-1])
967         current_state->nr_cbufs--;
968 
969     /* Set whether CMASK can be used. */
970     r300->cmask_in_use =
971         state->nr_cbufs == 1 && state->cbufs[0] &&
972         r300->screen->cmask_resource == state->cbufs[0]->texture;
973 
974     /* Need to reset clamping or colormask. */
975     r300_mark_atom_dirty(r300, &r300->blend_state);
976 
977     /* Re-swizzle the blend color. */
978     r300_set_blend_color(pipe, &((struct r300_blend_color_state*)r300->blend_color_state.state)->state);
979 
980     if (unlock_zbuffer) {
981         pipe_surface_reference(&r300->locked_zbuffer, NULL);
982     }
983 
984     r300_mark_fb_state_dirty(r300, R300_CHANGED_FB_STATE);
985 
986     if (state->zsbuf) {
987         switch (util_format_get_blocksize(state->zsbuf->format)) {
988         case 2:
989             zbuffer_bpp = 16;
990             break;
991         case 4:
992             zbuffer_bpp = 24;
993             break;
994         }
995 
996         /* Polygon offset depends on the zbuffer bit depth. */
997         if (r300->zbuffer_bpp != zbuffer_bpp) {
998             r300->zbuffer_bpp = zbuffer_bpp;
999 
1000             if (r300->polygon_offset_enabled)
1001                 r300_mark_atom_dirty(r300, &r300->rs_state);
1002         }
1003     }
1004 
1005     r300->num_samples = util_framebuffer_get_num_samples(state);
1006 
1007     /* Set up AA config. */
1008     if (r300->num_samples > 1) {
1009         switch (r300->num_samples) {
1010         case 2:
1011             aa->aa_config = R300_GB_AA_CONFIG_AA_ENABLE |
1012                             R300_GB_AA_CONFIG_NUM_AA_SUBSAMPLES_2;
1013             break;
1014         case 4:
1015             aa->aa_config = R300_GB_AA_CONFIG_AA_ENABLE |
1016                             R300_GB_AA_CONFIG_NUM_AA_SUBSAMPLES_4;
1017             break;
1018         case 6:
1019             aa->aa_config = R300_GB_AA_CONFIG_AA_ENABLE |
1020                             R300_GB_AA_CONFIG_NUM_AA_SUBSAMPLES_6;
1021             break;
1022         }
1023     } else {
1024         aa->aa_config = 0;
1025     }
1026 
1027     if (DBG_ON(r300, DBG_FB)) {
1028         fprintf(stderr, "r300: set_framebuffer_state:\n");
1029         for (i = 0; i < state->nr_cbufs; i++) {
1030             if (state->cbufs[i])
1031                 r300_print_fb_surf_info(state->cbufs[i], i, "CB");
1032         }
1033         if (state->zsbuf) {
1034             r300_print_fb_surf_info(state->zsbuf, 0, "ZB");
1035         }
1036     }
1037 }
1038 
1039 /* Create fragment shader state. */
r300_create_fs_state(struct pipe_context * pipe,const struct pipe_shader_state * shader)1040 static void* r300_create_fs_state(struct pipe_context* pipe,
1041                                   const struct pipe_shader_state* shader)
1042 {
1043     struct r300_fragment_shader* fs = NULL;
1044 
1045     fs = (struct r300_fragment_shader*)CALLOC_STRUCT(r300_fragment_shader);
1046 
1047     /* Copy state directly into shader. */
1048     fs->state = *shader;
1049     fs->state.tokens = tgsi_dup_tokens(shader->tokens);
1050 
1051     return (void*)fs;
1052 }
1053 
r300_mark_fs_code_dirty(struct r300_context * r300)1054 void r300_mark_fs_code_dirty(struct r300_context *r300)
1055 {
1056     struct r300_fragment_shader* fs = r300_fs(r300);
1057 
1058     r300_mark_atom_dirty(r300, &r300->fs);
1059     r300_mark_atom_dirty(r300, &r300->fs_rc_constant_state);
1060     r300_mark_atom_dirty(r300, &r300->fs_constants);
1061     r300->fs.size = fs->shader->cb_code_size;
1062 
1063     if (r300->screen->caps.is_r500) {
1064         r300->fs_rc_constant_state.size = fs->shader->rc_state_count * 7;
1065         r300->fs_constants.size = fs->shader->externals_count * 4 + 3;
1066     } else {
1067         r300->fs_rc_constant_state.size = fs->shader->rc_state_count * 5;
1068         r300->fs_constants.size = fs->shader->externals_count * 4 + 1;
1069     }
1070 
1071     ((struct r300_constant_buffer*)r300->fs_constants.state)->remap_table =
1072             fs->shader->code.constants_remap_table;
1073 }
1074 
1075 /* Bind fragment shader state. */
r300_bind_fs_state(struct pipe_context * pipe,void * shader)1076 static void r300_bind_fs_state(struct pipe_context* pipe, void* shader)
1077 {
1078     struct r300_context* r300 = r300_context(pipe);
1079     struct r300_fragment_shader* fs = (struct r300_fragment_shader*)shader;
1080 
1081     if (!fs) {
1082         r300->fs.state = NULL;
1083         return;
1084     }
1085 
1086     r300->fs.state = fs;
1087     r300->fs_status = FRAGMENT_SHADER_DIRTY;
1088 
1089     r300_mark_atom_dirty(r300, &r300->rs_block_state); /* Will be updated before the emission. */
1090 }
1091 
1092 /* Delete fragment shader state. */
r300_delete_fs_state(struct pipe_context * pipe,void * shader)1093 static void r300_delete_fs_state(struct pipe_context* pipe, void* shader)
1094 {
1095     struct r300_fragment_shader* fs = (struct r300_fragment_shader*)shader;
1096     struct r300_fragment_shader_code *tmp, *ptr = fs->first;
1097 
1098     while (ptr) {
1099         tmp = ptr;
1100         ptr = ptr->next;
1101         rc_constants_destroy(&tmp->code.constants);
1102         FREE(tmp->cb_code);
1103         FREE(tmp);
1104     }
1105     FREE((void*)fs->state.tokens);
1106     FREE(shader);
1107 }
1108 
r300_set_polygon_stipple(struct pipe_context * pipe,const struct pipe_poly_stipple * state)1109 static void r300_set_polygon_stipple(struct pipe_context* pipe,
1110                                      const struct pipe_poly_stipple* state)
1111 {
1112 }
1113 
1114 /* Create a new rasterizer state based on the CSO rasterizer state.
1115  *
1116  * This is a very large chunk of state, and covers most of the graphics
1117  * backend (GB), geometry assembly (GA), and setup unit (SU) blocks.
1118  *
1119  * In a not entirely unironic sidenote, this state has nearly nothing to do
1120  * with the actual block on the Radeon called the rasterizer (RS). */
r300_create_rs_state(struct pipe_context * pipe,const struct pipe_rasterizer_state * state)1121 static void* r300_create_rs_state(struct pipe_context* pipe,
1122                                   const struct pipe_rasterizer_state* state)
1123 {
1124     struct r300_rs_state* rs = CALLOC_STRUCT(r300_rs_state);
1125     uint32_t vap_control_status;    /* R300_VAP_CNTL_STATUS: 0x2140 */
1126     uint32_t vap_clip_cntl;         /* R300_VAP_CLIP_CNTL: 0x221C */
1127     uint32_t point_size;            /* R300_GA_POINT_SIZE: 0x421c */
1128     uint32_t point_minmax;          /* R300_GA_POINT_MINMAX: 0x4230 */
1129     uint32_t line_control;          /* R300_GA_LINE_CNTL: 0x4234 */
1130     uint32_t polygon_offset_enable; /* R300_SU_POLY_OFFSET_ENABLE: 0x42b4 */
1131     uint32_t cull_mode;             /* R300_SU_CULL_MODE: 0x42b8 */
1132     uint32_t line_stipple_config;   /* R300_GA_LINE_STIPPLE_CONFIG: 0x4328 */
1133     uint32_t line_stipple_value;    /* R300_GA_LINE_STIPPLE_VALUE: 0x4260 */
1134     uint32_t polygon_mode;          /* R300_GA_POLY_MODE: 0x4288 */
1135     uint32_t clip_rule;             /* R300_SC_CLIP_RULE: 0x43D0 */
1136     uint32_t round_mode;            /* R300_GA_ROUND_MODE: 0x428c */
1137 
1138     /* Point sprites texture coordinates, 0: lower left, 1: upper right */
1139     float point_texcoord_left = 0;  /* R300_GA_POINT_S0: 0x4200 */
1140     float point_texcoord_bottom = 0;/* R300_GA_POINT_T0: 0x4204 */
1141     float point_texcoord_right = 1; /* R300_GA_POINT_S1: 0x4208 */
1142     float point_texcoord_top = 0;   /* R300_GA_POINT_T1: 0x420c */
1143     boolean vclamp = !r300_context(pipe)->screen->caps.is_r500;
1144     CB_LOCALS;
1145 
1146     /* Copy rasterizer state. */
1147     rs->rs = *state;
1148     rs->rs_draw = *state;
1149 
1150     rs->rs.sprite_coord_enable = state->point_quad_rasterization *
1151                                  state->sprite_coord_enable;
1152 
1153     /* Override some states for Draw. */
1154     rs->rs_draw.sprite_coord_enable = 0; /* We can do this in HW. */
1155     rs->rs_draw.offset_point = 0;
1156     rs->rs_draw.offset_line = 0;
1157     rs->rs_draw.offset_tri = 0;
1158     rs->rs_draw.offset_clamp = 0;
1159 
1160 #ifdef PIPE_ARCH_LITTLE_ENDIAN
1161     vap_control_status = R300_VC_NO_SWAP;
1162 #else
1163     vap_control_status = R300_VC_32BIT_SWAP;
1164 #endif
1165 
1166     /* If no TCL engine is present, turn off the HW TCL. */
1167     if (!r300_screen(pipe->screen)->caps.has_tcl) {
1168         vap_control_status |= R300_VAP_TCL_BYPASS;
1169     }
1170 
1171     /* Point size width and height. */
1172     point_size =
1173         pack_float_16_6x(state->point_size) |
1174         (pack_float_16_6x(state->point_size) << R300_POINTSIZE_X_SHIFT);
1175 
1176     /* Point size clamping. */
1177     if (state->point_size_per_vertex) {
1178         /* Per-vertex point size.
1179          * Clamp to [0, max FB size] */
1180         float min_psiz = util_get_min_point_size(state);
1181         float max_psiz = pipe->screen->get_paramf(pipe->screen,
1182                                         PIPE_CAPF_MAX_POINT_WIDTH);
1183         point_minmax =
1184             (pack_float_16_6x(min_psiz) << R300_GA_POINT_MINMAX_MIN_SHIFT) |
1185             (pack_float_16_6x(max_psiz) << R300_GA_POINT_MINMAX_MAX_SHIFT);
1186     } else {
1187         /* We cannot disable the point-size vertex output,
1188          * so clamp it. */
1189         float psiz = state->point_size;
1190         point_minmax =
1191             (pack_float_16_6x(psiz) << R300_GA_POINT_MINMAX_MIN_SHIFT) |
1192             (pack_float_16_6x(psiz) << R300_GA_POINT_MINMAX_MAX_SHIFT);
1193     }
1194 
1195     /* Line control. */
1196     line_control = pack_float_16_6x(state->line_width) |
1197         R300_GA_LINE_CNTL_END_TYPE_COMP;
1198 
1199     /* Enable polygon mode */
1200     polygon_mode = 0;
1201     if (state->fill_front != PIPE_POLYGON_MODE_FILL ||
1202         state->fill_back != PIPE_POLYGON_MODE_FILL) {
1203         polygon_mode = R300_GA_POLY_MODE_DUAL;
1204     }
1205 
1206     /* Front face */
1207     if (state->front_ccw)
1208         cull_mode = R300_FRONT_FACE_CCW;
1209     else
1210         cull_mode = R300_FRONT_FACE_CW;
1211 
1212     /* Polygon offset */
1213     polygon_offset_enable = 0;
1214     if (util_get_offset(state, state->fill_front)) {
1215        polygon_offset_enable |= R300_FRONT_ENABLE;
1216     }
1217     if (util_get_offset(state, state->fill_back)) {
1218        polygon_offset_enable |= R300_BACK_ENABLE;
1219     }
1220 
1221     rs->polygon_offset_enable = polygon_offset_enable != 0;
1222 
1223     /* Polygon mode */
1224     if (polygon_mode) {
1225        polygon_mode |=
1226           r300_translate_polygon_mode_front(state->fill_front);
1227        polygon_mode |=
1228           r300_translate_polygon_mode_back(state->fill_back);
1229     }
1230 
1231     if (state->cull_face & PIPE_FACE_FRONT) {
1232         cull_mode |= R300_CULL_FRONT;
1233     }
1234     if (state->cull_face & PIPE_FACE_BACK) {
1235         cull_mode |= R300_CULL_BACK;
1236     }
1237 
1238     if (state->line_stipple_enable) {
1239         line_stipple_config =
1240             R300_GA_LINE_STIPPLE_CONFIG_LINE_RESET_LINE |
1241             (fui((float)state->line_stipple_factor) &
1242                 R300_GA_LINE_STIPPLE_CONFIG_STIPPLE_SCALE_MASK);
1243         /* XXX this might need to be scaled up */
1244         line_stipple_value = state->line_stipple_pattern;
1245     } else {
1246         line_stipple_config = 0;
1247         line_stipple_value = 0;
1248     }
1249 
1250     if (state->flatshade) {
1251         rs->color_control = R300_SHADE_MODEL_FLAT;
1252     } else {
1253         rs->color_control = R300_SHADE_MODEL_SMOOTH;
1254     }
1255 
1256     clip_rule = state->scissor ? 0xAAAA : 0xFFFF;
1257 
1258     /* Point sprites coord mode */
1259     if (rs->rs.sprite_coord_enable) {
1260         switch (state->sprite_coord_mode) {
1261             case PIPE_SPRITE_COORD_UPPER_LEFT:
1262                 point_texcoord_top = 0.0f;
1263                 point_texcoord_bottom = 1.0f;
1264                 break;
1265             case PIPE_SPRITE_COORD_LOWER_LEFT:
1266                 point_texcoord_top = 1.0f;
1267                 point_texcoord_bottom = 0.0f;
1268                 break;
1269         }
1270     }
1271 
1272     if (r300_screen(pipe->screen)->caps.has_tcl) {
1273        vap_clip_cntl = (state->clip_plane_enable & 63) |
1274                        R300_PS_UCP_MODE_CLIP_AS_TRIFAN;
1275     } else {
1276        vap_clip_cntl = R300_CLIP_DISABLE;
1277     }
1278 
1279     /* Vertex color clamping. FP20 means no clamping. */
1280     round_mode =
1281       R300_GA_ROUND_MODE_GEOMETRY_ROUND_NEAREST |
1282       (!vclamp ? (R300_GA_ROUND_MODE_RGB_CLAMP_FP20 |
1283                   R300_GA_ROUND_MODE_ALPHA_CLAMP_FP20) : 0);
1284 
1285     /* Build the main command buffer. */
1286     BEGIN_CB(rs->cb_main, RS_STATE_MAIN_SIZE);
1287     OUT_CB_REG(R300_VAP_CNTL_STATUS, vap_control_status);
1288     OUT_CB_REG(R300_VAP_CLIP_CNTL, vap_clip_cntl);
1289     OUT_CB_REG(R300_GA_POINT_SIZE, point_size);
1290     OUT_CB_REG_SEQ(R300_GA_POINT_MINMAX, 2);
1291     OUT_CB(point_minmax);
1292     OUT_CB(line_control);
1293     OUT_CB_REG_SEQ(R300_SU_POLY_OFFSET_ENABLE, 2);
1294     OUT_CB(polygon_offset_enable);
1295     rs->cull_mode_index = 11;
1296     OUT_CB(cull_mode);
1297     OUT_CB_REG(R300_GA_LINE_STIPPLE_CONFIG, line_stipple_config);
1298     OUT_CB_REG(R300_GA_LINE_STIPPLE_VALUE, line_stipple_value);
1299     OUT_CB_REG(R300_GA_POLY_MODE, polygon_mode);
1300     OUT_CB_REG(R300_GA_ROUND_MODE, round_mode);
1301     OUT_CB_REG(R300_SC_CLIP_RULE, clip_rule);
1302     OUT_CB_REG_SEQ(R300_GA_POINT_S0, 4);
1303     OUT_CB_32F(point_texcoord_left);
1304     OUT_CB_32F(point_texcoord_bottom);
1305     OUT_CB_32F(point_texcoord_right);
1306     OUT_CB_32F(point_texcoord_top);
1307     END_CB;
1308 
1309     /* Build the two command buffers for polygon offset setup. */
1310     if (polygon_offset_enable) {
1311         float scale = state->offset_scale * 12;
1312         float offset = state->offset_units * 4;
1313 
1314         BEGIN_CB(rs->cb_poly_offset_zb16, 5);
1315         OUT_CB_REG_SEQ(R300_SU_POLY_OFFSET_FRONT_SCALE, 4);
1316         OUT_CB_32F(scale);
1317         OUT_CB_32F(offset);
1318         OUT_CB_32F(scale);
1319         OUT_CB_32F(offset);
1320         END_CB;
1321 
1322         offset = state->offset_units * 2;
1323 
1324         BEGIN_CB(rs->cb_poly_offset_zb24, 5);
1325         OUT_CB_REG_SEQ(R300_SU_POLY_OFFSET_FRONT_SCALE, 4);
1326         OUT_CB_32F(scale);
1327         OUT_CB_32F(offset);
1328         OUT_CB_32F(scale);
1329         OUT_CB_32F(offset);
1330         END_CB;
1331     }
1332 
1333     return (void*)rs;
1334 }
1335 
1336 /* Bind rasterizer state. */
r300_bind_rs_state(struct pipe_context * pipe,void * state)1337 static void r300_bind_rs_state(struct pipe_context* pipe, void* state)
1338 {
1339     struct r300_context* r300 = r300_context(pipe);
1340     struct r300_rs_state* rs = (struct r300_rs_state*)state;
1341     int last_sprite_coord_enable = r300->sprite_coord_enable;
1342     boolean last_two_sided_color = r300->two_sided_color;
1343     boolean last_msaa_enable = r300->msaa_enable;
1344     boolean last_flatshade = r300->flatshade;
1345     boolean last_clip_halfz = r300->clip_halfz;
1346 
1347     if (r300->draw && rs) {
1348         draw_set_rasterizer_state(r300->draw, &rs->rs_draw, state);
1349     }
1350 
1351     if (rs) {
1352         r300->polygon_offset_enabled = rs->polygon_offset_enable;
1353         r300->sprite_coord_enable = rs->rs.sprite_coord_enable;
1354         r300->two_sided_color = rs->rs.light_twoside;
1355         r300->msaa_enable = rs->rs.multisample;
1356         r300->flatshade = rs->rs.flatshade;
1357         r300->clip_halfz = rs->rs.clip_halfz;
1358     } else {
1359         r300->polygon_offset_enabled = FALSE;
1360         r300->sprite_coord_enable = 0;
1361         r300->two_sided_color = FALSE;
1362         r300->msaa_enable = FALSE;
1363         r300->flatshade = FALSE;
1364         r300->clip_halfz = FALSE;
1365     }
1366 
1367     UPDATE_STATE(state, r300->rs_state);
1368     r300->rs_state.size = RS_STATE_MAIN_SIZE + (r300->polygon_offset_enabled ? 5 : 0);
1369 
1370     if (last_sprite_coord_enable != r300->sprite_coord_enable ||
1371         last_two_sided_color != r300->two_sided_color ||
1372         last_flatshade != r300->flatshade) {
1373         r300_mark_atom_dirty(r300, &r300->rs_block_state);
1374     }
1375 
1376     if (last_msaa_enable != r300->msaa_enable) {
1377         if (r300->alpha_to_coverage) {
1378             r300_mark_atom_dirty(r300, &r300->dsa_state);
1379         }
1380 
1381         if (r300->alpha_to_one &&
1382             r300->fs_status == FRAGMENT_SHADER_VALID) {
1383             r300->fs_status = FRAGMENT_SHADER_MAYBE_DIRTY;
1384         }
1385     }
1386 
1387     if (r300->screen->caps.has_tcl && last_clip_halfz != r300->clip_halfz) {
1388         r300_mark_atom_dirty(r300, &r300->vs_state);
1389     }
1390 }
1391 
1392 /* Free rasterizer state. */
r300_delete_rs_state(struct pipe_context * pipe,void * state)1393 static void r300_delete_rs_state(struct pipe_context* pipe, void* state)
1394 {
1395     FREE(state);
1396 }
1397 
1398 static void*
r300_create_sampler_state(struct pipe_context * pipe,const struct pipe_sampler_state * state)1399         r300_create_sampler_state(struct pipe_context* pipe,
1400                                   const struct pipe_sampler_state* state)
1401 {
1402     struct r300_context* r300 = r300_context(pipe);
1403     struct r300_sampler_state* sampler = CALLOC_STRUCT(r300_sampler_state);
1404     boolean is_r500 = r300->screen->caps.is_r500;
1405     int lod_bias;
1406 
1407     sampler->state = *state;
1408 
1409     /* r300 doesn't handle CLAMP and MIRROR_CLAMP correctly when either MAG
1410      * or MIN filter is NEAREST. Since texwrap produces same results
1411      * for CLAMP and CLAMP_TO_EDGE, we use them instead. */
1412     if (sampler->state.min_img_filter == PIPE_TEX_FILTER_NEAREST ||
1413         sampler->state.mag_img_filter == PIPE_TEX_FILTER_NEAREST) {
1414         /* Wrap S. */
1415         if (sampler->state.wrap_s == PIPE_TEX_WRAP_CLAMP)
1416             sampler->state.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
1417         else if (sampler->state.wrap_s == PIPE_TEX_WRAP_MIRROR_CLAMP)
1418             sampler->state.wrap_s = PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE;
1419 
1420         /* Wrap T. */
1421         if (sampler->state.wrap_t == PIPE_TEX_WRAP_CLAMP)
1422             sampler->state.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
1423         else if (sampler->state.wrap_t == PIPE_TEX_WRAP_MIRROR_CLAMP)
1424             sampler->state.wrap_t = PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE;
1425 
1426         /* Wrap R. */
1427         if (sampler->state.wrap_r == PIPE_TEX_WRAP_CLAMP)
1428             sampler->state.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
1429         else if (sampler->state.wrap_r == PIPE_TEX_WRAP_MIRROR_CLAMP)
1430             sampler->state.wrap_r = PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE;
1431     }
1432 
1433     sampler->filter0 |=
1434         (r300_translate_wrap(sampler->state.wrap_s) << R300_TX_WRAP_S_SHIFT) |
1435         (r300_translate_wrap(sampler->state.wrap_t) << R300_TX_WRAP_T_SHIFT) |
1436         (r300_translate_wrap(sampler->state.wrap_r) << R300_TX_WRAP_R_SHIFT);
1437 
1438     sampler->filter0 |= r300_translate_tex_filters(state->min_img_filter,
1439                                                    state->mag_img_filter,
1440                                                    state->min_mip_filter,
1441                                                    state->max_anisotropy > 1);
1442 
1443     sampler->filter0 |= r300_anisotropy(state->max_anisotropy);
1444 
1445     /* Unfortunately, r300-r500 don't support floating-point mipmap lods. */
1446     /* We must pass these to the merge function to clamp them properly. */
1447     sampler->min_lod = (unsigned)MAX2(state->min_lod, 0);
1448     sampler->max_lod = (unsigned)MAX2(ceilf(state->max_lod), 0);
1449 
1450     lod_bias = CLAMP((int)(state->lod_bias * 32 + 1), -(1 << 9), (1 << 9) - 1);
1451 
1452     sampler->filter1 |= (lod_bias << R300_LOD_BIAS_SHIFT) & R300_LOD_BIAS_MASK;
1453 
1454     /* This is very high quality anisotropic filtering for R5xx.
1455      * It's good for benchmarking the performance of texturing but
1456      * in practice we don't want to slow down the driver because it's
1457      * a pretty good performance killer. Feel free to play with it. */
1458     if (DBG_ON(r300, DBG_ANISOHQ) && is_r500) {
1459         sampler->filter1 |= r500_anisotropy(state->max_anisotropy);
1460     }
1461 
1462     /* R500-specific fixups and optimizations */
1463     if (r300->screen->caps.is_r500) {
1464         sampler->filter1 |= R500_BORDER_FIX;
1465     }
1466 
1467     return (void*)sampler;
1468 }
1469 
r300_bind_sampler_states(struct pipe_context * pipe,enum pipe_shader_type shader,unsigned start,unsigned count,void ** states)1470 static void r300_bind_sampler_states(struct pipe_context* pipe,
1471                                      enum pipe_shader_type shader,
1472                                      unsigned start, unsigned count,
1473                                      void** states)
1474 {
1475     struct r300_context* r300 = r300_context(pipe);
1476     struct r300_textures_state* state =
1477         (struct r300_textures_state*)r300->textures_state.state;
1478     unsigned tex_units = r300->screen->caps.num_tex_units;
1479 
1480     assert(start == 0);
1481 
1482     if (shader != PIPE_SHADER_FRAGMENT)
1483        return;
1484 
1485     if (count > tex_units)
1486        return;
1487 
1488     memcpy(state->sampler_states, states, sizeof(void*) * count);
1489     state->sampler_state_count = count;
1490 
1491     r300_mark_atom_dirty(r300, &r300->textures_state);
1492 }
1493 
r300_delete_sampler_state(struct pipe_context * pipe,void * state)1494 static void r300_delete_sampler_state(struct pipe_context* pipe, void* state)
1495 {
1496     FREE(state);
1497 }
1498 
r300_assign_texture_cache_region(unsigned index,unsigned num)1499 static uint32_t r300_assign_texture_cache_region(unsigned index, unsigned num)
1500 {
1501     /* This looks like a hack, but I believe it's suppose to work like
1502      * that. To illustrate how this works, let's assume you have 5 textures.
1503      * From docs, 5 and the successive numbers are:
1504      *
1505      * FOURTH_1     = 5
1506      * FOURTH_2     = 6
1507      * FOURTH_3     = 7
1508      * EIGHTH_0     = 8
1509      * EIGHTH_1     = 9
1510      *
1511      * First 3 textures will get 3/4 of size of the cache, divived evenly
1512      * between them. The last 1/4 of the cache must be divided between
1513      * the last 2 textures, each will therefore get 1/8 of the cache.
1514      * Why not just to use "5 + texture_index" ?
1515      *
1516      * This simple trick works for all "num" <= 16.
1517      */
1518     if (num <= 1)
1519         return R300_TX_CACHE(R300_TX_CACHE_WHOLE);
1520     else
1521         return R300_TX_CACHE(num + index);
1522 }
1523 
r300_set_sampler_views(struct pipe_context * pipe,enum pipe_shader_type shader,unsigned start,unsigned count,struct pipe_sampler_view ** views)1524 static void r300_set_sampler_views(struct pipe_context* pipe,
1525                                    enum pipe_shader_type shader,
1526                                    unsigned start, unsigned count,
1527                                    struct pipe_sampler_view** views)
1528 {
1529     struct r300_context* r300 = r300_context(pipe);
1530     struct r300_textures_state* state =
1531         (struct r300_textures_state*)r300->textures_state.state;
1532     struct r300_resource *texture;
1533     unsigned i, real_num_views = 0, view_index = 0;
1534     unsigned tex_units = r300->screen->caps.num_tex_units;
1535     boolean dirty_tex = FALSE;
1536 
1537     if (shader != PIPE_SHADER_FRAGMENT)
1538        return;
1539 
1540     assert(start == 0);  /* non-zero not handled yet */
1541 
1542     if (count > tex_units) {
1543         return;
1544     }
1545 
1546     /* Calculate the real number of views. */
1547     for (i = 0; i < count; i++) {
1548         if (views[i])
1549             real_num_views++;
1550     }
1551 
1552     for (i = 0; i < count; i++) {
1553         pipe_sampler_view_reference(
1554                 (struct pipe_sampler_view**)&state->sampler_views[i],
1555                 views[i]);
1556 
1557         if (!views[i]) {
1558             continue;
1559         }
1560 
1561         /* A new sampler view (= texture)... */
1562         dirty_tex = TRUE;
1563 
1564         /* Set the texrect factor in the fragment shader.
1565              * Needed for RECT and NPOT fallback. */
1566         texture = r300_resource(views[i]->texture);
1567         if (texture->tex.is_npot) {
1568             r300_mark_atom_dirty(r300, &r300->fs_rc_constant_state);
1569         }
1570 
1571         state->sampler_views[i]->texcache_region =
1572                 r300_assign_texture_cache_region(view_index, real_num_views);
1573         view_index++;
1574     }
1575 
1576     for (i = count; i < tex_units; i++) {
1577         if (state->sampler_views[i]) {
1578             pipe_sampler_view_reference(
1579                     (struct pipe_sampler_view**)&state->sampler_views[i],
1580                     NULL);
1581         }
1582     }
1583 
1584     state->sampler_view_count = count;
1585 
1586     r300_mark_atom_dirty(r300, &r300->textures_state);
1587 
1588     if (dirty_tex) {
1589         r300_mark_atom_dirty(r300, &r300->texture_cache_inval);
1590     }
1591 }
1592 
1593 struct pipe_sampler_view *
r300_create_sampler_view_custom(struct pipe_context * pipe,struct pipe_resource * texture,const struct pipe_sampler_view * templ,unsigned width0_override,unsigned height0_override)1594 r300_create_sampler_view_custom(struct pipe_context *pipe,
1595                          struct pipe_resource *texture,
1596                          const struct pipe_sampler_view *templ,
1597                          unsigned width0_override,
1598                          unsigned height0_override)
1599 {
1600     struct r300_sampler_view *view = CALLOC_STRUCT(r300_sampler_view);
1601     struct r300_resource *tex = r300_resource(texture);
1602     boolean is_r500 = r300_screen(pipe->screen)->caps.is_r500;
1603     boolean dxtc_swizzle = r300_screen(pipe->screen)->caps.dxtc_swizzle;
1604 
1605     if (view) {
1606         unsigned hwformat;
1607 
1608         view->base = *templ;
1609         view->base.reference.count = 1;
1610         view->base.context = pipe;
1611         view->base.texture = NULL;
1612         pipe_resource_reference(&view->base.texture, texture);
1613 
1614 	view->width0_override = width0_override;
1615 	view->height0_override = height0_override;
1616         view->swizzle[0] = templ->swizzle_r;
1617         view->swizzle[1] = templ->swizzle_g;
1618         view->swizzle[2] = templ->swizzle_b;
1619         view->swizzle[3] = templ->swizzle_a;
1620 
1621         hwformat = r300_translate_texformat(templ->format,
1622                                             view->swizzle,
1623                                             is_r500,
1624                                             dxtc_swizzle);
1625 
1626         if (hwformat == ~0) {
1627             fprintf(stderr, "r300: Ooops. Got unsupported format %s in %s.\n",
1628                     util_format_short_name(templ->format), __func__);
1629         }
1630         assert(hwformat != ~0);
1631 
1632 	r300_texture_setup_format_state(r300_screen(pipe->screen), tex,
1633 					templ->format, 0,
1634 	                                width0_override, height0_override,
1635 					&view->format);
1636         view->format.format1 |= hwformat;
1637         if (is_r500) {
1638             view->format.format2 |= r500_tx_format_msb_bit(templ->format);
1639         }
1640     }
1641 
1642     return (struct pipe_sampler_view*)view;
1643 }
1644 
1645 static struct pipe_sampler_view *
r300_create_sampler_view(struct pipe_context * pipe,struct pipe_resource * texture,const struct pipe_sampler_view * templ)1646 r300_create_sampler_view(struct pipe_context *pipe,
1647                          struct pipe_resource *texture,
1648                          const struct pipe_sampler_view *templ)
1649 {
1650     return r300_create_sampler_view_custom(pipe, texture, templ,
1651                                            r300_resource(texture)->tex.width0,
1652                                            r300_resource(texture)->tex.height0);
1653 }
1654 
1655 
1656 static void
r300_sampler_view_destroy(struct pipe_context * pipe,struct pipe_sampler_view * view)1657 r300_sampler_view_destroy(struct pipe_context *pipe,
1658                           struct pipe_sampler_view *view)
1659 {
1660    pipe_resource_reference(&view->texture, NULL);
1661    FREE(view);
1662 }
1663 
r300_set_sample_mask(struct pipe_context * pipe,unsigned mask)1664 static void r300_set_sample_mask(struct pipe_context *pipe,
1665                                  unsigned mask)
1666 {
1667     struct r300_context* r300 = r300_context(pipe);
1668 
1669     *((unsigned*)r300->sample_mask.state) = mask;
1670 
1671     r300_mark_atom_dirty(r300, &r300->sample_mask);
1672 }
1673 
r300_set_scissor_states(struct pipe_context * pipe,unsigned start_slot,unsigned num_scissors,const struct pipe_scissor_state * state)1674 static void r300_set_scissor_states(struct pipe_context* pipe,
1675                                     unsigned start_slot,
1676                                     unsigned num_scissors,
1677                                     const struct pipe_scissor_state* state)
1678 {
1679     struct r300_context* r300 = r300_context(pipe);
1680 
1681     memcpy(r300->scissor_state.state, state,
1682         sizeof(struct pipe_scissor_state));
1683 
1684     r300_mark_atom_dirty(r300, &r300->scissor_state);
1685 }
1686 
r300_set_viewport_states(struct pipe_context * pipe,unsigned start_slot,unsigned num_viewports,const struct pipe_viewport_state * state)1687 static void r300_set_viewport_states(struct pipe_context* pipe,
1688                                      unsigned start_slot,
1689                                      unsigned num_viewports,
1690                                      const struct pipe_viewport_state* state)
1691 {
1692     struct r300_context* r300 = r300_context(pipe);
1693     struct r300_viewport_state* viewport =
1694         (struct r300_viewport_state*)r300->viewport_state.state;
1695 
1696     r300->viewport = *state;
1697 
1698     if (r300->draw) {
1699         draw_set_viewport_states(r300->draw, start_slot, num_viewports, state);
1700         viewport->vte_control = R300_VTX_XY_FMT | R300_VTX_Z_FMT;
1701         return;
1702     }
1703 
1704     /* Do the transform in HW. */
1705     viewport->vte_control = R300_VTX_W0_FMT;
1706 
1707     if (state->scale[0] != 1.0f) {
1708         viewport->xscale = state->scale[0];
1709         viewport->vte_control |= R300_VPORT_X_SCALE_ENA;
1710     }
1711     if (state->scale[1] != 1.0f) {
1712         viewport->yscale = state->scale[1];
1713         viewport->vte_control |= R300_VPORT_Y_SCALE_ENA;
1714     }
1715     if (state->scale[2] != 1.0f) {
1716         viewport->zscale = state->scale[2];
1717         viewport->vte_control |= R300_VPORT_Z_SCALE_ENA;
1718     }
1719     if (state->translate[0] != 0.0f) {
1720         viewport->xoffset = state->translate[0];
1721         viewport->vte_control |= R300_VPORT_X_OFFSET_ENA;
1722     }
1723     if (state->translate[1] != 0.0f) {
1724         viewport->yoffset = state->translate[1];
1725         viewport->vte_control |= R300_VPORT_Y_OFFSET_ENA;
1726     }
1727     if (state->translate[2] != 0.0f) {
1728         viewport->zoffset = state->translate[2];
1729         viewport->vte_control |= R300_VPORT_Z_OFFSET_ENA;
1730     }
1731 
1732     r300_mark_atom_dirty(r300, &r300->viewport_state);
1733     if (r300->fs.state && r300_fs(r300)->shader &&
1734         r300_fs(r300)->shader->inputs.wpos != ATTR_UNUSED) {
1735         r300_mark_atom_dirty(r300, &r300->fs_rc_constant_state);
1736     }
1737 }
1738 
r300_set_vertex_buffers_hwtcl(struct pipe_context * pipe,unsigned start_slot,unsigned count,const struct pipe_vertex_buffer * buffers)1739 static void r300_set_vertex_buffers_hwtcl(struct pipe_context* pipe,
1740                                     unsigned start_slot, unsigned count,
1741                                     const struct pipe_vertex_buffer* buffers)
1742 {
1743     struct r300_context* r300 = r300_context(pipe);
1744 
1745     util_set_vertex_buffers_count(r300->vertex_buffer,
1746                                   &r300->nr_vertex_buffers,
1747                                   buffers, start_slot, count);
1748 
1749     /* There must be at least one vertex buffer set, otherwise it locks up. */
1750     if (!r300->nr_vertex_buffers) {
1751         util_set_vertex_buffers_count(r300->vertex_buffer,
1752                                       &r300->nr_vertex_buffers,
1753                                       &r300->dummy_vb, 0, 1);
1754     }
1755 
1756     r300->vertex_arrays_dirty = TRUE;
1757 }
1758 
r300_set_vertex_buffers_swtcl(struct pipe_context * pipe,unsigned start_slot,unsigned count,const struct pipe_vertex_buffer * buffers)1759 static void r300_set_vertex_buffers_swtcl(struct pipe_context* pipe,
1760                                     unsigned start_slot, unsigned count,
1761                                     const struct pipe_vertex_buffer* buffers)
1762 {
1763     struct r300_context* r300 = r300_context(pipe);
1764     unsigned i;
1765 
1766     util_set_vertex_buffers_count(r300->vertex_buffer,
1767                                   &r300->nr_vertex_buffers,
1768                                   buffers, start_slot, count);
1769     draw_set_vertex_buffers(r300->draw, start_slot, count, buffers);
1770 
1771     if (!buffers)
1772         return;
1773 
1774     for (i = 0; i < count; i++) {
1775         if (buffers[i].is_user_buffer) {
1776             draw_set_mapped_vertex_buffer(r300->draw, start_slot + i,
1777                                           buffers[i].buffer.user, ~0);
1778         } else if (buffers[i].buffer.resource) {
1779             draw_set_mapped_vertex_buffer(r300->draw, start_slot + i,
1780                                           r300_resource(buffers[i].buffer.resource)->malloced_buffer, ~0);
1781         }
1782     }
1783 }
1784 
1785 /* Initialize the PSC tables. */
r300_vertex_psc(struct r300_vertex_element_state * velems)1786 static void r300_vertex_psc(struct r300_vertex_element_state *velems)
1787 {
1788     struct r300_vertex_stream_state *vstream = &velems->vertex_stream;
1789     uint16_t type, swizzle;
1790     enum pipe_format format;
1791     unsigned i;
1792 
1793     /* Vertex shaders have no semantics on their inputs,
1794      * so PSC should just route stuff based on the vertex elements,
1795      * and not on attrib information. */
1796     for (i = 0; i < velems->count; i++) {
1797         format = velems->velem[i].src_format;
1798 
1799         type = r300_translate_vertex_data_type(format);
1800         if (type == R300_INVALID_FORMAT) {
1801             fprintf(stderr, "r300: Bad vertex format %s.\n",
1802                     util_format_short_name(format));
1803             assert(0);
1804             abort();
1805         }
1806 
1807         type |= i << R300_DST_VEC_LOC_SHIFT;
1808         swizzle = r300_translate_vertex_data_swizzle(format);
1809 
1810         if (i & 1) {
1811             vstream->vap_prog_stream_cntl[i >> 1] |= type << 16;
1812             vstream->vap_prog_stream_cntl_ext[i >> 1] |= swizzle << 16;
1813         } else {
1814             vstream->vap_prog_stream_cntl[i >> 1] |= type;
1815             vstream->vap_prog_stream_cntl_ext[i >> 1] |= swizzle;
1816         }
1817     }
1818 
1819     /* Set the last vector in the PSC. */
1820     if (i) {
1821         i -= 1;
1822     }
1823     vstream->vap_prog_stream_cntl[i >> 1] |=
1824         (R300_LAST_VEC << (i & 1 ? 16 : 0));
1825 
1826     vstream->count = (i >> 1) + 1;
1827 }
1828 
r300_create_vertex_elements_state(struct pipe_context * pipe,unsigned count,const struct pipe_vertex_element * attribs)1829 static void* r300_create_vertex_elements_state(struct pipe_context* pipe,
1830                                                unsigned count,
1831                                                const struct pipe_vertex_element* attribs)
1832 {
1833     struct r300_vertex_element_state *velems;
1834     unsigned i;
1835     struct pipe_vertex_element dummy_attrib = {0};
1836 
1837     /* R300 Programmable Stream Control (PSC) doesn't support 0 vertex elements. */
1838     if (!count) {
1839         dummy_attrib.src_format = PIPE_FORMAT_R8G8B8A8_UNORM;
1840         attribs = &dummy_attrib;
1841         count = 1;
1842     } else if (count > 16) {
1843         fprintf(stderr, "r300: More than 16 vertex elements are not supported,"
1844                 " requested %i, using 16.\n", count);
1845         count = 16;
1846     }
1847 
1848     velems = CALLOC_STRUCT(r300_vertex_element_state);
1849     if (!velems)
1850         return NULL;
1851 
1852     velems->count = count;
1853     memcpy(velems->velem, attribs, sizeof(struct pipe_vertex_element) * count);
1854 
1855     if (r300_screen(pipe->screen)->caps.has_tcl) {
1856         /* Setup PSC.
1857          * The unused components will be replaced by (..., 0, 1). */
1858         r300_vertex_psc(velems);
1859 
1860         for (i = 0; i < count; i++) {
1861             velems->format_size[i] =
1862                 align(util_format_get_blocksize(velems->velem[i].src_format), 4);
1863             velems->vertex_size_dwords += velems->format_size[i] / 4;
1864         }
1865     }
1866 
1867     return velems;
1868 }
1869 
r300_bind_vertex_elements_state(struct pipe_context * pipe,void * state)1870 static void r300_bind_vertex_elements_state(struct pipe_context *pipe,
1871                                             void *state)
1872 {
1873     struct r300_context *r300 = r300_context(pipe);
1874     struct r300_vertex_element_state *velems = state;
1875 
1876     if (!velems) {
1877         return;
1878     }
1879 
1880     r300->velems = velems;
1881 
1882     if (r300->draw) {
1883         draw_set_vertex_elements(r300->draw, velems->count, velems->velem);
1884         return;
1885     }
1886 
1887     UPDATE_STATE(&velems->vertex_stream, r300->vertex_stream_state);
1888     r300->vertex_stream_state.size = (1 + velems->vertex_stream.count) * 2;
1889     r300->vertex_arrays_dirty = TRUE;
1890 }
1891 
r300_delete_vertex_elements_state(struct pipe_context * pipe,void * state)1892 static void r300_delete_vertex_elements_state(struct pipe_context *pipe, void *state)
1893 {
1894     FREE(state);
1895 }
1896 
r300_create_vs_state(struct pipe_context * pipe,const struct pipe_shader_state * shader)1897 static void* r300_create_vs_state(struct pipe_context* pipe,
1898                                   const struct pipe_shader_state* shader)
1899 {
1900     struct r300_context* r300 = r300_context(pipe);
1901     struct r300_vertex_shader* vs = CALLOC_STRUCT(r300_vertex_shader);
1902 
1903     /* Copy state directly into shader. */
1904     vs->state = *shader;
1905     vs->state.tokens = tgsi_dup_tokens(shader->tokens);
1906 
1907     if (r300->screen->caps.has_tcl) {
1908         r300_init_vs_outputs(r300, vs);
1909         r300_translate_vertex_shader(r300, vs);
1910     } else {
1911         r300_draw_init_vertex_shader(r300, vs);
1912     }
1913 
1914     return vs;
1915 }
1916 
r300_bind_vs_state(struct pipe_context * pipe,void * shader)1917 static void r300_bind_vs_state(struct pipe_context* pipe, void* shader)
1918 {
1919     struct r300_context* r300 = r300_context(pipe);
1920     struct r300_vertex_shader* vs = (struct r300_vertex_shader*)shader;
1921 
1922     if (!vs) {
1923         r300->vs_state.state = NULL;
1924         return;
1925     }
1926     if (vs == r300->vs_state.state) {
1927         return;
1928     }
1929     r300->vs_state.state = vs;
1930 
1931     /* The majority of the RS block bits is dependent on the vertex shader. */
1932     r300_mark_atom_dirty(r300, &r300->rs_block_state); /* Will be updated before the emission. */
1933 
1934     if (r300->screen->caps.has_tcl) {
1935         unsigned fc_op_dwords = r300->screen->caps.is_r500 ? 3 : 2;
1936         r300_mark_atom_dirty(r300, &r300->vs_state);
1937         r300->vs_state.size = vs->code.length + 9 +
1938 			(R300_VS_MAX_FC_OPS * fc_op_dwords + 4);
1939 
1940         r300_mark_atom_dirty(r300, &r300->vs_constants);
1941         r300->vs_constants.size =
1942                 2 +
1943                 (vs->externals_count ? vs->externals_count * 4 + 3 : 0) +
1944                 (vs->immediates_count ? vs->immediates_count * 4 + 3 : 0);
1945 
1946         ((struct r300_constant_buffer*)r300->vs_constants.state)->remap_table =
1947                 vs->code.constants_remap_table;
1948 
1949         r300_mark_atom_dirty(r300, &r300->pvs_flush);
1950     } else {
1951         draw_bind_vertex_shader(r300->draw,
1952                 (struct draw_vertex_shader*)vs->draw_vs);
1953     }
1954 }
1955 
r300_delete_vs_state(struct pipe_context * pipe,void * shader)1956 static void r300_delete_vs_state(struct pipe_context* pipe, void* shader)
1957 {
1958     struct r300_context* r300 = r300_context(pipe);
1959     struct r300_vertex_shader* vs = (struct r300_vertex_shader*)shader;
1960 
1961     if (r300->screen->caps.has_tcl) {
1962         rc_constants_destroy(&vs->code.constants);
1963         FREE(vs->code.constants_remap_table);
1964     } else {
1965         draw_delete_vertex_shader(r300->draw,
1966                 (struct draw_vertex_shader*)vs->draw_vs);
1967     }
1968 
1969     FREE((void*)vs->state.tokens);
1970     FREE(shader);
1971 }
1972 
r300_set_constant_buffer(struct pipe_context * pipe,enum pipe_shader_type shader,uint index,const struct pipe_constant_buffer * cb)1973 static void r300_set_constant_buffer(struct pipe_context *pipe,
1974                                      enum pipe_shader_type shader, uint index,
1975                                      const struct pipe_constant_buffer *cb)
1976 {
1977     struct r300_context* r300 = r300_context(pipe);
1978     struct r300_constant_buffer *cbuf;
1979     uint32_t *mapped;
1980 
1981     if (!cb || (!cb->buffer && !cb->user_buffer))
1982         return;
1983 
1984     switch (shader) {
1985         case PIPE_SHADER_VERTEX:
1986             cbuf = (struct r300_constant_buffer*)r300->vs_constants.state;
1987             break;
1988         case PIPE_SHADER_FRAGMENT:
1989             cbuf = (struct r300_constant_buffer*)r300->fs_constants.state;
1990             break;
1991         default:
1992             return;
1993     }
1994 
1995 
1996     if (cb->user_buffer)
1997         mapped = (uint32_t*)cb->user_buffer;
1998     else {
1999         struct r300_resource *rbuf = r300_resource(cb->buffer);
2000 
2001         if (rbuf && rbuf->malloced_buffer)
2002             mapped = (uint32_t*)rbuf->malloced_buffer;
2003         else
2004             return;
2005     }
2006 
2007     if (shader == PIPE_SHADER_FRAGMENT ||
2008         (shader == PIPE_SHADER_VERTEX && r300->screen->caps.has_tcl)) {
2009         cbuf->ptr = mapped;
2010     }
2011 
2012     if (shader == PIPE_SHADER_VERTEX) {
2013         if (r300->screen->caps.has_tcl) {
2014             struct r300_vertex_shader *vs =
2015                     (struct r300_vertex_shader*)r300->vs_state.state;
2016 
2017             if (!vs) {
2018                 cbuf->buffer_base = 0;
2019                 return;
2020             }
2021 
2022             cbuf->buffer_base = r300->vs_const_base;
2023             r300->vs_const_base += vs->code.constants.Count;
2024             if (r300->vs_const_base > R500_MAX_PVS_CONST_VECS) {
2025                 r300->vs_const_base = vs->code.constants.Count;
2026                 cbuf->buffer_base = 0;
2027                 r300_mark_atom_dirty(r300, &r300->pvs_flush);
2028             }
2029             r300_mark_atom_dirty(r300, &r300->vs_constants);
2030         } else if (r300->draw) {
2031             draw_set_mapped_constant_buffer(r300->draw, PIPE_SHADER_VERTEX,
2032                 0, mapped, cb->buffer_size);
2033         }
2034     } else if (shader == PIPE_SHADER_FRAGMENT) {
2035         r300_mark_atom_dirty(r300, &r300->fs_constants);
2036     }
2037 }
2038 
r300_texture_barrier(struct pipe_context * pipe,unsigned flags)2039 static void r300_texture_barrier(struct pipe_context *pipe, unsigned flags)
2040 {
2041     struct r300_context *r300 = r300_context(pipe);
2042 
2043     r300_mark_atom_dirty(r300, &r300->gpu_flush);
2044     r300_mark_atom_dirty(r300, &r300->texture_cache_inval);
2045 }
2046 
r300_memory_barrier(struct pipe_context * pipe,unsigned flags)2047 static void r300_memory_barrier(struct pipe_context *pipe, unsigned flags)
2048 {
2049 }
2050 
r300_init_state_functions(struct r300_context * r300)2051 void r300_init_state_functions(struct r300_context* r300)
2052 {
2053     r300->context.create_blend_state = r300_create_blend_state;
2054     r300->context.bind_blend_state = r300_bind_blend_state;
2055     r300->context.delete_blend_state = r300_delete_blend_state;
2056 
2057     r300->context.set_blend_color = r300_set_blend_color;
2058 
2059     r300->context.set_clip_state = r300_set_clip_state;
2060     r300->context.set_sample_mask = r300_set_sample_mask;
2061 
2062     r300->context.set_constant_buffer = r300_set_constant_buffer;
2063 
2064     r300->context.create_depth_stencil_alpha_state = r300_create_dsa_state;
2065     r300->context.bind_depth_stencil_alpha_state = r300_bind_dsa_state;
2066     r300->context.delete_depth_stencil_alpha_state = r300_delete_dsa_state;
2067 
2068     r300->context.set_stencil_ref = r300_set_stencil_ref;
2069 
2070     r300->context.set_framebuffer_state = r300_set_framebuffer_state;
2071 
2072     r300->context.create_fs_state = r300_create_fs_state;
2073     r300->context.bind_fs_state = r300_bind_fs_state;
2074     r300->context.delete_fs_state = r300_delete_fs_state;
2075 
2076     r300->context.set_polygon_stipple = r300_set_polygon_stipple;
2077 
2078     r300->context.create_rasterizer_state = r300_create_rs_state;
2079     r300->context.bind_rasterizer_state = r300_bind_rs_state;
2080     r300->context.delete_rasterizer_state = r300_delete_rs_state;
2081 
2082     r300->context.create_sampler_state = r300_create_sampler_state;
2083     r300->context.bind_sampler_states = r300_bind_sampler_states;
2084     r300->context.delete_sampler_state = r300_delete_sampler_state;
2085 
2086     r300->context.set_sampler_views = r300_set_sampler_views;
2087     r300->context.create_sampler_view = r300_create_sampler_view;
2088     r300->context.sampler_view_destroy = r300_sampler_view_destroy;
2089 
2090     r300->context.set_scissor_states = r300_set_scissor_states;
2091 
2092     r300->context.set_viewport_states = r300_set_viewport_states;
2093 
2094     if (r300->screen->caps.has_tcl) {
2095         r300->context.set_vertex_buffers = r300_set_vertex_buffers_hwtcl;
2096     } else {
2097         r300->context.set_vertex_buffers = r300_set_vertex_buffers_swtcl;
2098     }
2099 
2100     r300->context.create_vertex_elements_state = r300_create_vertex_elements_state;
2101     r300->context.bind_vertex_elements_state = r300_bind_vertex_elements_state;
2102     r300->context.delete_vertex_elements_state = r300_delete_vertex_elements_state;
2103 
2104     r300->context.create_vs_state = r300_create_vs_state;
2105     r300->context.bind_vs_state = r300_bind_vs_state;
2106     r300->context.delete_vs_state = r300_delete_vs_state;
2107 
2108     r300->context.texture_barrier = r300_texture_barrier;
2109     r300->context.memory_barrier = r300_memory_barrier;
2110 }
2111