src/gallium/drivers/nv30/nv30_state.c

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