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1 /*
2  * Copyright 2012 Red Hat Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  * Authors: Ben Skeggs
23  *
24  */
25 
26 #include "util/u_format.h"
27 #include "util/u_helpers.h"
28 #include "util/u_inlines.h"
29 
30 #include "nouveau_gldefs.h"
31 #include "nv_object.xml.h"
32 #include "nv30/nv30-40_3d.xml.h"
33 #include "nv30/nv30_context.h"
34 #include "nv30/nv30_winsys.h"
35 
36 #define NV40_3D_MRT_BLEND_ENABLE 0x0000036c
37 
38 static void *
nv30_blend_state_create(struct pipe_context * pipe,const struct pipe_blend_state * cso)39 nv30_blend_state_create(struct pipe_context *pipe,
40                         const struct pipe_blend_state *cso)
41 {
42    struct nouveau_object *eng3d = nv30_context(pipe)->screen->eng3d;
43    struct nv30_blend_stateobj *so;
44    uint32_t blend[2], cmask[2];
45    int i;
46 
47    so = CALLOC_STRUCT(nv30_blend_stateobj);
48    if (!so)
49       return NULL;
50    so->pipe = *cso;
51 
52    if (cso->logicop_enable) {
53       SB_MTHD30(so, COLOR_LOGIC_OP_ENABLE, 2);
54       SB_DATA  (so, 1);
55       SB_DATA  (so, nvgl_logicop_func(cso->logicop_func));
56    } else {
57       SB_MTHD30(so, COLOR_LOGIC_OP_ENABLE, 1);
58       SB_DATA  (so, 0);
59    }
60 
61    SB_MTHD30(so, DITHER_ENABLE, 1);
62    SB_DATA  (so, cso->dither);
63 
64    blend[0] = cso->rt[0].blend_enable;
65    cmask[0] = !!(cso->rt[0].colormask & PIPE_MASK_A) << 24 |
66               !!(cso->rt[0].colormask & PIPE_MASK_R) << 16 |
67               !!(cso->rt[0].colormask & PIPE_MASK_G) <<  8 |
68               !!(cso->rt[0].colormask & PIPE_MASK_B);
69    if (cso->independent_blend_enable) {
70       blend[1] = 0;
71       cmask[1] = 0;
72       for (i = 1; i < 4; i++) {
73          blend[1] |= cso->rt[i].blend_enable << i;
74          cmask[1] |= !!(cso->rt[i].colormask & PIPE_MASK_A) << (0 + (i * 4)) |
75                      !!(cso->rt[i].colormask & PIPE_MASK_R) << (1 + (i * 4)) |
76                      !!(cso->rt[i].colormask & PIPE_MASK_G) << (2 + (i * 4)) |
77                      !!(cso->rt[i].colormask & PIPE_MASK_B) << (3 + (i * 4));
78       }
79    } else {
80       blend[1]  = 0x0000000e *   (blend[0] & 0x00000001);
81       cmask[1]  = 0x00001110 * !!(cmask[0] & 0x01000000);
82       cmask[1] |= 0x00002220 * !!(cmask[0] & 0x00010000);
83       cmask[1] |= 0x00004440 * !!(cmask[0] & 0x00000100);
84       cmask[1] |= 0x00008880 * !!(cmask[0] & 0x00000001);
85    }
86 
87    if (eng3d->oclass >= NV40_3D_CLASS) {
88       SB_MTHD40(so, MRT_BLEND_ENABLE, 2);
89       SB_DATA  (so, blend[1]);
90       SB_DATA  (so, cmask[1]);
91    }
92 
93    if (blend[0] || blend[1]) {
94       SB_MTHD30(so, BLEND_FUNC_ENABLE, 3);
95       SB_DATA  (so, blend[0]);
96       SB_DATA  (so, (nvgl_blend_func(cso->rt[0].alpha_src_factor) << 16) |
97                      nvgl_blend_func(cso->rt[0].rgb_src_factor));
98       SB_DATA  (so, (nvgl_blend_func(cso->rt[0].alpha_dst_factor) << 16) |
99                      nvgl_blend_func(cso->rt[0].rgb_dst_factor));
100       if (eng3d->oclass < NV40_3D_CLASS) {
101          SB_MTHD30(so, BLEND_EQUATION, 1);
102          SB_DATA  (so, nvgl_blend_eqn(cso->rt[0].rgb_func));
103       } else {
104          SB_MTHD40(so, BLEND_EQUATION, 1);
105          SB_DATA  (so, (nvgl_blend_eqn(cso->rt[0].alpha_func) << 16) |
106                         nvgl_blend_eqn(cso->rt[0].rgb_func));
107       }
108    } else {
109       SB_MTHD30(so, BLEND_FUNC_ENABLE, 1);
110       SB_DATA  (so, blend[0]);
111    }
112 
113    SB_MTHD30(so, COLOR_MASK, 1);
114    SB_DATA  (so, cmask[0]);
115    return so;
116 }
117 
118 static void
nv30_blend_state_bind(struct pipe_context * pipe,void * hwcso)119 nv30_blend_state_bind(struct pipe_context *pipe, void *hwcso)
120 {
121    struct nv30_context *nv30 = nv30_context(pipe);
122 
123    nv30->blend = hwcso;
124    nv30->dirty |= NV30_NEW_BLEND;
125 }
126 
127 static void
nv30_blend_state_delete(struct pipe_context * pipe,void * hwcso)128 nv30_blend_state_delete(struct pipe_context *pipe, void *hwcso)
129 {
130    FREE(hwcso);
131 }
132 
133 static void *
nv30_rasterizer_state_create(struct pipe_context * pipe,const struct pipe_rasterizer_state * cso)134 nv30_rasterizer_state_create(struct pipe_context *pipe,
135                              const struct pipe_rasterizer_state *cso)
136 {
137    struct nv30_rasterizer_stateobj *so;
138 
139    so = CALLOC_STRUCT(nv30_rasterizer_stateobj);
140    if (!so)
141       return NULL;
142    so->pipe = *cso;
143 
144    SB_MTHD30(so, SHADE_MODEL, 1);
145    SB_DATA  (so, cso->flatshade ? NV30_3D_SHADE_MODEL_FLAT :
146                                   NV30_3D_SHADE_MODEL_SMOOTH);
147 
148    SB_MTHD30(so, POLYGON_MODE_FRONT, 6);
149    SB_DATA  (so, nvgl_polygon_mode(cso->fill_front));
150    SB_DATA  (so, nvgl_polygon_mode(cso->fill_back));
151    if (cso->cull_face == PIPE_FACE_FRONT_AND_BACK)
152       SB_DATA  (so, NV30_3D_CULL_FACE_FRONT_AND_BACK);
153    else
154    if (cso->cull_face == PIPE_FACE_FRONT)
155       SB_DATA  (so, NV30_3D_CULL_FACE_FRONT);
156    else
157       SB_DATA  (so, NV30_3D_CULL_FACE_BACK);
158    SB_DATA  (so, cso->front_ccw ? NV30_3D_FRONT_FACE_CCW :
159                                   NV30_3D_FRONT_FACE_CW);
160    SB_DATA  (so, cso->poly_smooth);
161    SB_DATA  (so, cso->cull_face != PIPE_FACE_NONE);
162 
163    SB_MTHD30(so, POLYGON_OFFSET_POINT_ENABLE, 3);
164    SB_DATA  (so, cso->offset_point);
165    SB_DATA  (so, cso->offset_line);
166    SB_DATA  (so, cso->offset_tri);
167    if (cso->offset_point || cso->offset_line || cso->offset_tri) {
168       SB_MTHD30(so, POLYGON_OFFSET_FACTOR, 2);
169       SB_DATA  (so, fui(cso->offset_scale));
170       SB_DATA  (so, fui(cso->offset_units * 2.0));
171    }
172 
173    SB_MTHD30(so, LINE_WIDTH, 2);
174    SB_DATA  (so, (unsigned char)(cso->line_width * 8.0) & 0xff);
175    SB_DATA  (so, cso->line_smooth);
176    SB_MTHD30(so, LINE_STIPPLE_ENABLE, 2);
177    SB_DATA  (so, cso->line_stipple_enable);
178    SB_DATA  (so, (cso->line_stipple_pattern << 16) |
179                   cso->line_stipple_factor);
180 
181    SB_MTHD30(so, VERTEX_TWO_SIDE_ENABLE, 1);
182    SB_DATA  (so, cso->light_twoside);
183    SB_MTHD30(so, POLYGON_STIPPLE_ENABLE, 1);
184    SB_DATA  (so, cso->poly_stipple_enable);
185    SB_MTHD30(so, POINT_SIZE, 1);
186    SB_DATA  (so, fui(cso->point_size));
187    SB_MTHD30(so, FLATSHADE_FIRST, 1);
188    SB_DATA  (so, cso->flatshade_first);
189 
190    SB_MTHD30(so, DEPTH_CONTROL, 1);
191    SB_DATA  (so, cso->depth_clip ? 0x00000001 : 0x00000010);
192    return so;
193 }
194 
195 static void
nv30_rasterizer_state_bind(struct pipe_context * pipe,void * hwcso)196 nv30_rasterizer_state_bind(struct pipe_context *pipe, void *hwcso)
197 {
198    struct nv30_context *nv30 = nv30_context(pipe);
199 
200    nv30->rast = hwcso;
201    nv30->dirty |= NV30_NEW_RASTERIZER;
202 }
203 
204 static void
nv30_rasterizer_state_delete(struct pipe_context * pipe,void * hwcso)205 nv30_rasterizer_state_delete(struct pipe_context *pipe, void *hwcso)
206 {
207    FREE(hwcso);
208 }
209 
210 static void *
nv30_zsa_state_create(struct pipe_context * pipe,const struct pipe_depth_stencil_alpha_state * cso)211 nv30_zsa_state_create(struct pipe_context *pipe,
212                       const struct pipe_depth_stencil_alpha_state *cso)
213 {
214    struct nouveau_object *eng3d = nv30_context(pipe)->screen->eng3d;
215    struct nv30_zsa_stateobj *so;
216 
217    so = CALLOC_STRUCT(nv30_zsa_stateobj);
218    if (!so)
219       return NULL;
220    so->pipe = *cso;
221 
222    SB_MTHD30(so, DEPTH_FUNC, 3);
223    SB_DATA  (so, nvgl_comparison_op(cso->depth.func));
224    SB_DATA  (so, cso->depth.writemask);
225    SB_DATA  (so, cso->depth.enabled);
226 
227    if (eng3d->oclass == NV35_3D_CLASS || eng3d->oclass >= NV40_3D_CLASS) {
228       SB_MTHD35(so, DEPTH_BOUNDS_TEST_ENABLE, 3);
229       SB_DATA  (so, cso->depth.bounds_test);
230       SB_DATA  (so, fui(cso->depth.bounds_min));
231       SB_DATA  (so, fui(cso->depth.bounds_max));
232    }
233 
234    if (cso->stencil[0].enabled) {
235       SB_MTHD30(so, STENCIL_ENABLE(0), 3);
236       SB_DATA  (so, 1);
237       SB_DATA  (so, cso->stencil[0].writemask);
238       SB_DATA  (so, nvgl_comparison_op(cso->stencil[0].func));
239       SB_MTHD30(so, STENCIL_FUNC_MASK(0), 4);
240       SB_DATA  (so, cso->stencil[0].valuemask);
241       SB_DATA  (so, nvgl_stencil_op(cso->stencil[0].fail_op));
242       SB_DATA  (so, nvgl_stencil_op(cso->stencil[0].zfail_op));
243       SB_DATA  (so, nvgl_stencil_op(cso->stencil[0].zpass_op));
244    } else {
245       SB_MTHD30(so, STENCIL_ENABLE(0), 2);
246       SB_DATA  (so, 0);
247       SB_DATA  (so, 0x000000ff);
248    }
249 
250    if (cso->stencil[1].enabled) {
251       SB_MTHD30(so, STENCIL_ENABLE(1), 3);
252       SB_DATA  (so, 1);
253       SB_DATA  (so, cso->stencil[1].writemask);
254       SB_DATA  (so, nvgl_comparison_op(cso->stencil[1].func));
255       SB_MTHD30(so, STENCIL_FUNC_MASK(1), 4);
256       SB_DATA  (so, cso->stencil[1].valuemask);
257       SB_DATA  (so, nvgl_stencil_op(cso->stencil[1].fail_op));
258       SB_DATA  (so, nvgl_stencil_op(cso->stencil[1].zfail_op));
259       SB_DATA  (so, nvgl_stencil_op(cso->stencil[1].zpass_op));
260    } else {
261       SB_MTHD30(so, STENCIL_ENABLE(1), 1);
262       SB_DATA  (so, 0);
263    }
264 
265    SB_MTHD30(so, ALPHA_FUNC_ENABLE, 3);
266    SB_DATA  (so, cso->alpha.enabled ? 1 : 0);
267    SB_DATA  (so, nvgl_comparison_op(cso->alpha.func));
268    SB_DATA  (so, float_to_ubyte(cso->alpha.ref_value));
269 
270    return so;
271 }
272 
273 static void
nv30_zsa_state_bind(struct pipe_context * pipe,void * hwcso)274 nv30_zsa_state_bind(struct pipe_context *pipe, void *hwcso)
275 {
276    struct nv30_context *nv30 = nv30_context(pipe);
277 
278    nv30->zsa = hwcso;
279    nv30->dirty |= NV30_NEW_ZSA;
280 }
281 
282 static void
nv30_zsa_state_delete(struct pipe_context * pipe,void * hwcso)283 nv30_zsa_state_delete(struct pipe_context *pipe, void *hwcso)
284 {
285    FREE(hwcso);
286 }
287 
288 static void
nv30_set_blend_color(struct pipe_context * pipe,const struct pipe_blend_color * bcol)289 nv30_set_blend_color(struct pipe_context *pipe,
290                      const struct pipe_blend_color *bcol)
291 {
292     struct nv30_context *nv30 = nv30_context(pipe);
293 
294     nv30->blend_colour = *bcol;
295     nv30->dirty |= NV30_NEW_BLEND_COLOUR;
296 }
297 
298 static void
nv30_set_stencil_ref(struct pipe_context * pipe,const struct pipe_stencil_ref * sr)299 nv30_set_stencil_ref(struct pipe_context *pipe,
300                      const struct pipe_stencil_ref *sr)
301 {
302     struct nv30_context *nv30 = nv30_context(pipe);
303 
304     nv30->stencil_ref = *sr;
305     nv30->dirty |= NV30_NEW_STENCIL_REF;
306 }
307 
308 static void
nv30_set_clip_state(struct pipe_context * pipe,const struct pipe_clip_state * clip)309 nv30_set_clip_state(struct pipe_context *pipe,
310                     const struct pipe_clip_state *clip)
311 {
312     struct nv30_context *nv30 = nv30_context(pipe);
313 
314     memcpy(nv30->clip.ucp, clip->ucp, sizeof(clip->ucp));
315 
316     nv30->dirty |= NV30_NEW_CLIP;
317 }
318 
319 static void
nv30_set_sample_mask(struct pipe_context * pipe,unsigned sample_mask)320 nv30_set_sample_mask(struct pipe_context *pipe, unsigned sample_mask)
321 {
322     struct nv30_context *nv30 = nv30_context(pipe);
323 
324     nv30->sample_mask = sample_mask;
325     nv30->dirty |= NV30_NEW_SAMPLE_MASK;
326 }
327 
328 static void
nv30_set_constant_buffer(struct pipe_context * pipe,enum pipe_shader_type shader,uint index,const struct pipe_constant_buffer * cb)329 nv30_set_constant_buffer(struct pipe_context *pipe,
330                          enum pipe_shader_type shader, uint index,
331                          const struct pipe_constant_buffer *cb)
332 {
333    struct nv30_context *nv30 = nv30_context(pipe);
334    struct pipe_resource *buf = cb ? cb->buffer : NULL;
335    unsigned size;
336 
337    if (cb && cb->user_buffer) {
338       buf = nouveau_user_buffer_create(pipe->screen, (void*)cb->user_buffer,
339                                        cb->buffer_size,
340                                        PIPE_BIND_CONSTANT_BUFFER);
341    }
342 
343    size = 0;
344    if (buf)
345       size = buf->width0 / (4 * sizeof(float));
346 
347    if (shader == PIPE_SHADER_VERTEX) {
348       pipe_resource_reference(&nv30->vertprog.constbuf, buf);
349       nv30->vertprog.constbuf_nr = size;
350       nv30->dirty |= NV30_NEW_VERTCONST;
351    } else
352    if (shader == PIPE_SHADER_FRAGMENT) {
353       pipe_resource_reference(&nv30->fragprog.constbuf, buf);
354       nv30->fragprog.constbuf_nr = size;
355       nv30->dirty |= NV30_NEW_FRAGCONST;
356    }
357 
358    if (cb && cb->user_buffer) {
359       pipe_resource_reference(&buf, NULL);
360    }
361 }
362 
363 static void
nv30_set_framebuffer_state(struct pipe_context * pipe,const struct pipe_framebuffer_state * fb)364 nv30_set_framebuffer_state(struct pipe_context *pipe,
365                            const struct pipe_framebuffer_state *fb)
366 {
367     struct nv30_context *nv30 = nv30_context(pipe);
368 
369     nouveau_bufctx_reset(nv30->bufctx, BUFCTX_FB);
370 
371     nv30->framebuffer = *fb;
372     nv30->dirty |= NV30_NEW_FRAMEBUFFER;
373 
374    /* Hardware can't handle different swizzled-ness or different blocksizes
375     * for zs and cbufs. If both are supplied and something doesn't match,
376     * blank out the zs for now so that at least *some* rendering can occur.
377     */
378     if (fb->nr_cbufs > 0 && fb->zsbuf) {
379        struct nv30_miptree *color_mt = nv30_miptree(fb->cbufs[0]->texture);
380        struct nv30_miptree *zeta_mt = nv30_miptree(fb->zsbuf->texture);
381 
382        if (color_mt->swizzled != zeta_mt->swizzled ||
383            (color_mt->swizzled &&
384             (util_format_get_blocksize(fb->zsbuf->format) > 2) !=
385             (util_format_get_blocksize(fb->cbufs[0]->format) > 2))) {
386           nv30->framebuffer.zsbuf = NULL;
387           debug_printf("Mismatched color and zeta formats, ignoring zeta.\n");
388        }
389     }
390 }
391 
392 static void
nv30_set_polygon_stipple(struct pipe_context * pipe,const struct pipe_poly_stipple * stipple)393 nv30_set_polygon_stipple(struct pipe_context *pipe,
394                          const struct pipe_poly_stipple *stipple)
395 {
396     struct nv30_context *nv30 = nv30_context(pipe);
397 
398     nv30->stipple = *stipple;
399     nv30->dirty |= NV30_NEW_STIPPLE;
400 }
401 
402 static void
nv30_set_scissor_states(struct pipe_context * pipe,unsigned start_slot,unsigned num_viewports,const struct pipe_scissor_state * scissor)403 nv30_set_scissor_states(struct pipe_context *pipe,
404                         unsigned start_slot,
405                         unsigned num_viewports,
406                         const struct pipe_scissor_state *scissor)
407 {
408     struct nv30_context *nv30 = nv30_context(pipe);
409 
410     nv30->scissor = *scissor;
411     nv30->dirty |= NV30_NEW_SCISSOR;
412 }
413 
414 static void
nv30_set_viewport_states(struct pipe_context * pipe,unsigned start_slot,unsigned num_viewports,const struct pipe_viewport_state * vpt)415 nv30_set_viewport_states(struct pipe_context *pipe,
416                          unsigned start_slot,
417                          unsigned num_viewports,
418                          const struct pipe_viewport_state *vpt)
419 {
420     struct nv30_context *nv30 = nv30_context(pipe);
421 
422     nv30->viewport = *vpt;
423     nv30->dirty |= NV30_NEW_VIEWPORT;
424 }
425 
426 static void
nv30_set_vertex_buffers(struct pipe_context * pipe,unsigned start_slot,unsigned count,const struct pipe_vertex_buffer * vb)427 nv30_set_vertex_buffers(struct pipe_context *pipe,
428                         unsigned start_slot, unsigned count,
429                         const struct pipe_vertex_buffer *vb)
430 {
431     struct nv30_context *nv30 = nv30_context(pipe);
432 
433     nouveau_bufctx_reset(nv30->bufctx, BUFCTX_VTXBUF);
434 
435     util_set_vertex_buffers_count(nv30->vtxbuf, &nv30->num_vtxbufs,
436                                   vb, start_slot, count);
437 
438     nv30->dirty |= NV30_NEW_ARRAYS;
439 }
440 
441 void
nv30_state_init(struct pipe_context * pipe)442 nv30_state_init(struct pipe_context *pipe)
443 {
444    pipe->create_blend_state = nv30_blend_state_create;
445    pipe->bind_blend_state = nv30_blend_state_bind;
446    pipe->delete_blend_state = nv30_blend_state_delete;
447 
448    pipe->create_rasterizer_state = nv30_rasterizer_state_create;
449    pipe->bind_rasterizer_state = nv30_rasterizer_state_bind;
450    pipe->delete_rasterizer_state = nv30_rasterizer_state_delete;
451 
452    pipe->create_depth_stencil_alpha_state = nv30_zsa_state_create;
453    pipe->bind_depth_stencil_alpha_state = nv30_zsa_state_bind;
454    pipe->delete_depth_stencil_alpha_state = nv30_zsa_state_delete;
455 
456    pipe->set_blend_color = nv30_set_blend_color;
457    pipe->set_stencil_ref = nv30_set_stencil_ref;
458    pipe->set_clip_state = nv30_set_clip_state;
459    pipe->set_sample_mask = nv30_set_sample_mask;
460    pipe->set_constant_buffer = nv30_set_constant_buffer;
461    pipe->set_framebuffer_state = nv30_set_framebuffer_state;
462    pipe->set_polygon_stipple = nv30_set_polygon_stipple;
463    pipe->set_scissor_states = nv30_set_scissor_states;
464    pipe->set_viewport_states = nv30_set_viewport_states;
465 
466    pipe->set_vertex_buffers = nv30_set_vertex_buffers;
467 }
468