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 BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
18 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
19 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20 * SOFTWARE.
21 *
22 * Authors: Ben Skeggs
23 *
24 */
25
26#include "util/u_inlines.h"
27
28#include "nouveau/nouveau_gldefs.h"
29#include "nouveau/nv_object.xml.h"
30#include "nv30-40_3d.xml.h"
31#include "nv30_context.h"
32#include "nv30_winsys.h"
33
34#define NV40_3D_MRT_BLEND_ENABLE 0x0000036c
35
36static void *
37nv30_blend_state_create(struct pipe_context *pipe,
38                        const struct pipe_blend_state *cso)
39{
40   struct nouveau_object *eng3d = nv30_context(pipe)->screen->eng3d;
41   struct nv30_blend_stateobj *so;
42   uint32_t blend[2], cmask[2];
43   int i;
44
45   so = CALLOC_STRUCT(nv30_blend_stateobj);
46   if (!so)
47      return NULL;
48   so->pipe = *cso;
49
50   if (cso->logicop_enable) {
51      SB_MTHD30(so, COLOR_LOGIC_OP_ENABLE, 2);
52      SB_DATA  (so, 1);
53      SB_DATA  (so, nvgl_logicop_func(cso->logicop_func));
54   } else {
55      SB_MTHD30(so, COLOR_LOGIC_OP_ENABLE, 1);
56      SB_DATA  (so, 0);
57   }
58
59   SB_MTHD30(so, DITHER_ENABLE, 1);
60   SB_DATA  (so, cso->dither);
61
62   blend[0] = cso->rt[0].blend_enable;
63   cmask[0] = !!(cso->rt[0].colormask & PIPE_MASK_A) << 24 |
64              !!(cso->rt[0].colormask & PIPE_MASK_R) << 16 |
65              !!(cso->rt[0].colormask & PIPE_MASK_G) <<  8 |
66              !!(cso->rt[0].colormask & PIPE_MASK_B);
67   if (cso->independent_blend_enable) {
68      blend[1] = 0;
69      cmask[1] = 0;
70      for (i = 1; i < 4; i++) {
71         blend[1] |= cso->rt[i].blend_enable << i;
72         cmask[1] |= !!(cso->rt[i].colormask & PIPE_MASK_A) << (0 + (i * 4)) |
73                     !!(cso->rt[i].colormask & PIPE_MASK_R) << (1 + (i * 4)) |
74                     !!(cso->rt[i].colormask & PIPE_MASK_G) << (2 + (i * 4)) |
75                     !!(cso->rt[i].colormask & PIPE_MASK_B) << (3 + (i * 4));
76      }
77   } else {
78      blend[1]  = 0x0000000e *   (blend[0] & 0x00000001);
79      cmask[1]  = 0x00001110 * !!(cmask[0] & 0x01000000);
80      cmask[1] |= 0x00002220 * !!(cmask[0] & 0x00010000);
81      cmask[1] |= 0x00004440 * !!(cmask[0] & 0x00000100);
82      cmask[1] |= 0x00008880 * !!(cmask[0] & 0x00000001);
83   }
84
85   if (eng3d->oclass >= NV40_3D_CLASS) {
86      SB_MTHD40(so, MRT_BLEND_ENABLE, 2);
87      SB_DATA  (so, blend[1]);
88      SB_DATA  (so, cmask[1]);
89   }
90
91   if (blend[0] || blend[1]) {
92      SB_MTHD30(so, BLEND_FUNC_ENABLE, 3);
93      SB_DATA  (so, blend[0]);
94      SB_DATA  (so, (nvgl_blend_func(cso->rt[0].alpha_src_factor) << 16) |
95                     nvgl_blend_func(cso->rt[0].rgb_src_factor));
96      SB_DATA  (so, (nvgl_blend_func(cso->rt[0].alpha_dst_factor) << 16) |
97                     nvgl_blend_func(cso->rt[0].rgb_dst_factor));
98      if (eng3d->oclass < NV40_3D_CLASS) {
99         SB_MTHD30(so, BLEND_EQUATION, 1);
100         SB_DATA  (so, nvgl_blend_eqn(cso->rt[0].rgb_func));
101      } else {
102         SB_MTHD40(so, BLEND_EQUATION, 1);
103         SB_DATA  (so, (nvgl_blend_eqn(cso->rt[0].alpha_func) << 16) |
104                        nvgl_blend_eqn(cso->rt[0].rgb_func));
105      }
106   } else {
107      SB_MTHD30(so, BLEND_FUNC_ENABLE, 1);
108      SB_DATA  (so, blend[0]);
109   }
110
111   SB_MTHD30(so, COLOR_MASK, 1);
112   SB_DATA  (so, cmask[0]);
113   return so;
114}
115
116static void
117nv30_blend_state_bind(struct pipe_context *pipe, void *hwcso)
118{
119   struct nv30_context *nv30 = nv30_context(pipe);
120
121   nv30->blend = hwcso;
122   nv30->dirty |= NV30_NEW_BLEND;
123}
124
125static void
126nv30_blend_state_delete(struct pipe_context *pipe, void *hwcso)
127{
128   FREE(hwcso);
129}
130
131static void *
132nv30_rasterizer_state_create(struct pipe_context *pipe,
133                             const struct pipe_rasterizer_state *cso)
134{
135   struct nv30_rasterizer_stateobj *so;
136
137   so = CALLOC_STRUCT(nv30_rasterizer_stateobj);
138   if (!so)
139      return NULL;
140   so->pipe = *cso;
141
142   SB_MTHD30(so, SHADE_MODEL, 1);
143   SB_DATA  (so, cso->flatshade ? NV30_3D_SHADE_MODEL_FLAT :
144                                  NV30_3D_SHADE_MODEL_SMOOTH);
145
146   SB_MTHD30(so, POLYGON_MODE_FRONT, 6);
147   SB_DATA  (so, nvgl_polygon_mode(cso->fill_front));
148   SB_DATA  (so, nvgl_polygon_mode(cso->fill_back));
149   if (cso->cull_face == PIPE_FACE_FRONT_AND_BACK)
150      SB_DATA  (so, NV30_3D_CULL_FACE_FRONT_AND_BACK);
151   else
152   if (cso->cull_face == PIPE_FACE_FRONT)
153      SB_DATA  (so, NV30_3D_CULL_FACE_FRONT);
154   else
155      SB_DATA  (so, NV30_3D_CULL_FACE_BACK);
156   SB_DATA  (so, cso->front_ccw ? NV30_3D_FRONT_FACE_CCW :
157                                  NV30_3D_FRONT_FACE_CW);
158   SB_DATA  (so, cso->poly_smooth);
159   SB_DATA  (so, cso->cull_face != PIPE_FACE_NONE);
160
161   SB_MTHD30(so, POLYGON_OFFSET_POINT_ENABLE, 3);
162   SB_DATA  (so, cso->offset_point);
163   SB_DATA  (so, cso->offset_line);
164   SB_DATA  (so, cso->offset_tri);
165   if (cso->offset_point || cso->offset_line || cso->offset_tri) {
166      SB_MTHD30(so, POLYGON_OFFSET_FACTOR, 2);
167      SB_DATA  (so, fui(cso->offset_scale));
168      SB_DATA  (so, fui(cso->offset_units * 2.0));
169   }
170
171   SB_MTHD30(so, LINE_WIDTH, 2);
172   SB_DATA  (so, (unsigned char)(cso->line_width * 8.0) & 0xff);
173   SB_DATA  (so, cso->line_smooth);
174   SB_MTHD30(so, LINE_STIPPLE_ENABLE, 2);
175   SB_DATA  (so, cso->line_stipple_enable);
176   SB_DATA  (so, (cso->line_stipple_pattern << 16) |
177                  cso->line_stipple_factor);
178
179   SB_MTHD30(so, VERTEX_TWO_SIDE_ENABLE, 1);
180   SB_DATA  (so, cso->light_twoside);
181   SB_MTHD30(so, POLYGON_STIPPLE_ENABLE, 1);
182   SB_DATA  (so, cso->poly_stipple_enable);
183   SB_MTHD30(so, POINT_SIZE, 1);
184   SB_DATA  (so, fui(cso->point_size));
185   SB_MTHD30(so, FLATSHADE_FIRST, 1);
186   SB_DATA  (so, cso->flatshade_first);
187
188   SB_MTHD30(so, DEPTH_CONTROL, 1);
189   SB_DATA  (so, cso->depth_clip ? 0x00000001 : 0x00000010);
190   return so;
191}
192
193static void
194nv30_rasterizer_state_bind(struct pipe_context *pipe, void *hwcso)
195{
196   struct nv30_context *nv30 = nv30_context(pipe);
197
198   nv30->rast = hwcso;
199   nv30->dirty |= NV30_NEW_RASTERIZER;
200}
201
202static void
203nv30_rasterizer_state_delete(struct pipe_context *pipe, void *hwcso)
204{
205   FREE(hwcso);
206}
207
208static void *
209nv30_zsa_state_create(struct pipe_context *pipe,
210                      const struct pipe_depth_stencil_alpha_state *cso)
211{
212   struct nv30_zsa_stateobj *so;
213
214   so = CALLOC_STRUCT(nv30_zsa_stateobj);
215   if (!so)
216      return NULL;
217   so->pipe = *cso;
218
219   SB_MTHD30(so, DEPTH_FUNC, 3);
220   SB_DATA  (so, nvgl_comparison_op(cso->depth.func));
221   SB_DATA  (so, cso->depth.writemask);
222   SB_DATA  (so, cso->depth.enabled);
223
224   if (cso->stencil[0].enabled) {
225      SB_MTHD30(so, STENCIL_ENABLE(0), 3);
226      SB_DATA  (so, 1);
227      SB_DATA  (so, cso->stencil[0].writemask);
228      SB_DATA  (so, nvgl_comparison_op(cso->stencil[0].func));
229      SB_MTHD30(so, STENCIL_FUNC_MASK(0), 4);
230      SB_DATA  (so, cso->stencil[0].valuemask);
231      SB_DATA  (so, nvgl_stencil_op(cso->stencil[0].fail_op));
232      SB_DATA  (so, nvgl_stencil_op(cso->stencil[0].zfail_op));
233      SB_DATA  (so, nvgl_stencil_op(cso->stencil[0].zpass_op));
234   } else {
235      SB_MTHD30(so, STENCIL_ENABLE(0), 2);
236      SB_DATA  (so, 0);
237      SB_DATA  (so, 0x000000ff);
238   }
239
240   if (cso->stencil[1].enabled) {
241      SB_MTHD30(so, STENCIL_ENABLE(1), 3);
242      SB_DATA  (so, 1);
243      SB_DATA  (so, cso->stencil[1].writemask);
244      SB_DATA  (so, nvgl_comparison_op(cso->stencil[1].func));
245      SB_MTHD30(so, STENCIL_FUNC_MASK(1), 4);
246      SB_DATA  (so, cso->stencil[1].valuemask);
247      SB_DATA  (so, nvgl_stencil_op(cso->stencil[1].fail_op));
248      SB_DATA  (so, nvgl_stencil_op(cso->stencil[1].zfail_op));
249      SB_DATA  (so, nvgl_stencil_op(cso->stencil[1].zpass_op));
250   } else {
251      SB_MTHD30(so, STENCIL_ENABLE(1), 1);
252      SB_DATA  (so, 0);
253   }
254
255   SB_MTHD30(so, ALPHA_FUNC_ENABLE, 3);
256   SB_DATA  (so, cso->alpha.enabled ? 1 : 0);
257   SB_DATA  (so, nvgl_comparison_op(cso->alpha.func));
258   SB_DATA  (so, float_to_ubyte(cso->alpha.ref_value));
259
260   return so;
261}
262
263static void
264nv30_zsa_state_bind(struct pipe_context *pipe, void *hwcso)
265{
266   struct nv30_context *nv30 = nv30_context(pipe);
267
268   nv30->zsa = hwcso;
269   nv30->dirty |= NV30_NEW_ZSA;
270}
271
272static void
273nv30_zsa_state_delete(struct pipe_context *pipe, void *hwcso)
274{
275   FREE(hwcso);
276}
277
278static void
279nv30_set_blend_color(struct pipe_context *pipe,
280                     const struct pipe_blend_color *bcol)
281{
282    struct nv30_context *nv30 = nv30_context(pipe);
283
284    nv30->blend_colour = *bcol;
285    nv30->dirty |= NV30_NEW_BLEND_COLOUR;
286}
287
288static void
289nv30_set_stencil_ref(struct pipe_context *pipe,
290                     const struct pipe_stencil_ref *sr)
291{
292    struct nv30_context *nv30 = nv30_context(pipe);
293
294    nv30->stencil_ref = *sr;
295    nv30->dirty |= NV30_NEW_STENCIL_REF;
296}
297
298static void
299nv30_set_clip_state(struct pipe_context *pipe,
300                    const struct pipe_clip_state *clip)
301{
302    struct nv30_context *nv30 = nv30_context(pipe);
303
304    memcpy(nv30->clip.ucp, clip->ucp, sizeof(clip->ucp));
305
306    nv30->dirty |= NV30_NEW_CLIP;
307}
308
309static void
310nv30_set_sample_mask(struct pipe_context *pipe, unsigned sample_mask)
311{
312    struct nv30_context *nv30 = nv30_context(pipe);
313
314    nv30->sample_mask = sample_mask;
315    nv30->dirty |= NV30_NEW_SAMPLE_MASK;
316}
317
318static void
319nv30_set_constant_buffer(struct pipe_context *pipe, uint shader, uint index,
320                         struct pipe_constant_buffer *cb)
321{
322   struct nv30_context *nv30 = nv30_context(pipe);
323   struct pipe_resource *buf = cb ? cb->buffer : NULL;
324   unsigned size;
325
326   if (cb && cb->user_buffer) {
327      buf = nouveau_user_buffer_create(pipe->screen, cb->user_buffer,
328                                       cb->buffer_size,
329                                       PIPE_BIND_CONSTANT_BUFFER);
330   }
331
332   size = 0;
333   if (buf)
334      size = buf->width0 / (4 * sizeof(float));
335
336   if (shader == PIPE_SHADER_VERTEX) {
337      pipe_resource_reference(&nv30->vertprog.constbuf, buf);
338      nv30->vertprog.constbuf_nr = size;
339      nv30->dirty |= NV30_NEW_VERTCONST;
340   } else
341   if (shader == PIPE_SHADER_FRAGMENT) {
342      pipe_resource_reference(&nv30->fragprog.constbuf, buf);
343      nv30->fragprog.constbuf_nr = size;
344      nv30->dirty |= NV30_NEW_FRAGCONST;
345   }
346
347   if (cb && cb->user_buffer) {
348      pipe_resource_reference(&buf, NULL);
349   }
350}
351
352static void
353nv30_set_framebuffer_state(struct pipe_context *pipe,
354                           const struct pipe_framebuffer_state *fb)
355{
356    struct nv30_context *nv30 = nv30_context(pipe);
357
358    nouveau_bufctx_reset(nv30->bufctx, BUFCTX_FB);
359
360    nv30->framebuffer = *fb;
361    nv30->dirty |= NV30_NEW_FRAMEBUFFER;
362}
363
364static void
365nv30_set_polygon_stipple(struct pipe_context *pipe,
366                         const struct pipe_poly_stipple *stipple)
367{
368    struct nv30_context *nv30 = nv30_context(pipe);
369
370    nv30->stipple = *stipple;
371    nv30->dirty |= NV30_NEW_STIPPLE;
372}
373
374static void
375nv30_set_scissor_state(struct pipe_context *pipe,
376                       const struct pipe_scissor_state *scissor)
377{
378    struct nv30_context *nv30 = nv30_context(pipe);
379
380    nv30->scissor = *scissor;
381    nv30->dirty |= NV30_NEW_SCISSOR;
382}
383
384static void
385nv30_set_viewport_state(struct pipe_context *pipe,
386                        const struct pipe_viewport_state *vpt)
387{
388    struct nv30_context *nv30 = nv30_context(pipe);
389
390    nv30->viewport = *vpt;
391    nv30->dirty |= NV30_NEW_VIEWPORT;
392}
393
394static void
395nv30_set_vertex_buffers(struct pipe_context *pipe,
396                        unsigned count,
397                        const struct pipe_vertex_buffer *vb)
398{
399    struct nv30_context *nv30 = nv30_context(pipe);
400    unsigned i;
401
402    nouveau_bufctx_reset(nv30->bufctx, BUFCTX_VTXBUF);
403
404    for (i = 0; i < count; ++i)
405       pipe_resource_reference(&nv30->vtxbuf[i].buffer, vb[i].buffer);
406    for (; i < nv30->num_vtxbufs; ++i)
407       pipe_resource_reference(&nv30->vtxbuf[i].buffer, NULL);
408
409    memcpy(nv30->vtxbuf, vb, sizeof(*vb) * count);
410    nv30->num_vtxbufs = count;
411
412    nv30->dirty |= NV30_NEW_ARRAYS;
413}
414
415static void
416nv30_set_index_buffer(struct pipe_context *pipe,
417                      const struct pipe_index_buffer *ib)
418{
419    struct nv30_context *nv30 = nv30_context(pipe);
420
421    if (ib) {
422       pipe_resource_reference(&nv30->idxbuf.buffer, ib->buffer);
423       nv30->idxbuf.index_size = ib->index_size;
424       nv30->idxbuf.offset = ib->offset;
425       nv30->idxbuf.user_buffer = ib->user_buffer;
426    } else {
427       pipe_resource_reference(&nv30->idxbuf.buffer, NULL);
428       nv30->idxbuf.user_buffer = NULL;
429    }
430}
431
432void
433nv30_state_init(struct pipe_context *pipe)
434{
435   pipe->create_blend_state = nv30_blend_state_create;
436   pipe->bind_blend_state = nv30_blend_state_bind;
437   pipe->delete_blend_state = nv30_blend_state_delete;
438
439   pipe->create_rasterizer_state = nv30_rasterizer_state_create;
440   pipe->bind_rasterizer_state = nv30_rasterizer_state_bind;
441   pipe->delete_rasterizer_state = nv30_rasterizer_state_delete;
442
443   pipe->create_depth_stencil_alpha_state = nv30_zsa_state_create;
444   pipe->bind_depth_stencil_alpha_state = nv30_zsa_state_bind;
445   pipe->delete_depth_stencil_alpha_state = nv30_zsa_state_delete;
446
447   pipe->set_blend_color = nv30_set_blend_color;
448   pipe->set_stencil_ref = nv30_set_stencil_ref;
449   pipe->set_clip_state = nv30_set_clip_state;
450   pipe->set_sample_mask = nv30_set_sample_mask;
451   pipe->set_constant_buffer = nv30_set_constant_buffer;
452   pipe->set_framebuffer_state = nv30_set_framebuffer_state;
453   pipe->set_polygon_stipple = nv30_set_polygon_stipple;
454   pipe->set_scissor_state = nv30_set_scissor_state;
455   pipe->set_viewport_state = nv30_set_viewport_state;
456
457   pipe->set_vertex_buffers = nv30_set_vertex_buffers;
458   pipe->set_index_buffer = nv30_set_index_buffer;
459}
460