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_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
  36 static void *
  37 nv30_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
 116 static void
 117 nv30_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
 125 static void
 126 nv30_blend_state_delete(struct pipe_context *pipe, void *hwcso)
 127 {
 128    FREE(hwcso);
 129 }
 130
 131 static void *
 132 nv30_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
 193 static void
 194 nv30_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
 202 static void
 203 nv30_rasterizer_state_delete(struct pipe_context *pipe, void *hwcso)
 204 {
 205    FREE(hwcso);
 206 }
 207
 208 static void *
 209 nv30_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
 263 static void
 264 nv30_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
 272 static void
 273 nv30_zsa_state_delete(struct pipe_context *pipe, void *hwcso)
 274 {
 275    FREE(hwcso);
 276 }
 277
 278 static void
 279 nv30_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
 288 static void
 289 nv30_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
 298 static void
 299 nv30_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
 309 static void
 310 nv30_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
 318 static void
 319 nv30_set_constant_buffer(struct pipe_context *pipe, uint shader, uint index,
 320                          struct pipe_resource *buf)
 321 {
 322    struct nv30_context *nv30 = nv30_context(pipe);
 323    unsigned size;
 324
 325    size = 0;
 326    if (buf)
 327       size = buf->width0 / (4 * sizeof(float));
 328
 329    if (shader == PIPE_SHADER_VERTEX) {
 330       pipe_resource_reference(&nv30->vertprog.constbuf, buf);
 331       nv30->vertprog.constbuf_nr = size;
 332       nv30->dirty |= NV30_NEW_VERTCONST;
 333    } else
 334    if (shader == PIPE_SHADER_FRAGMENT) {
 335       pipe_resource_reference(&nv30->fragprog.constbuf, buf);
 336       nv30->fragprog.constbuf_nr = size;
 337       nv30->dirty |= NV30_NEW_FRAGCONST;
 338    }
 339 }
 340
 341 static void
 342 nv30_set_framebuffer_state(struct pipe_context *pipe,
 343                            const struct pipe_framebuffer_state *fb)
 344 {
 345     struct nv30_context *nv30 = nv30_context(pipe);
 346
 347     nouveau_bufctx_reset(nv30->bufctx, BUFCTX_FB);
 348
 349     nv30->framebuffer = *fb;
 350     nv30->dirty |= NV30_NEW_FRAMEBUFFER;
 351 }
 352
 353 static void
 354 nv30_set_polygon_stipple(struct pipe_context *pipe,
 355                          const struct pipe_poly_stipple *stipple)
 356 {
 357     struct nv30_context *nv30 = nv30_context(pipe);
 358
 359     nv30->stipple = *stipple;
 360     nv30->dirty |= NV30_NEW_STIPPLE;
 361 }
 362
 363 static void
 364 nv30_set_scissor_state(struct pipe_context *pipe,
 365                        const struct pipe_scissor_state *scissor)
 366 {
 367     struct nv30_context *nv30 = nv30_context(pipe);
 368
 369     nv30->scissor = *scissor;
 370     nv30->dirty |= NV30_NEW_SCISSOR;
 371 }
 372
 373 static void
 374 nv30_set_viewport_state(struct pipe_context *pipe,
 375                         const struct pipe_viewport_state *vpt)
 376 {
 377     struct nv30_context *nv30 = nv30_context(pipe);
 378
 379     nv30->viewport = *vpt;
 380     nv30->dirty |= NV30_NEW_VIEWPORT;
 381 }
 382
 383 static void
 384 nv30_set_vertex_buffers(struct pipe_context *pipe,
 385                         unsigned count,
 386                         const struct pipe_vertex_buffer *vb)
 387 {
 388     struct nv30_context *nv30 = nv30_context(pipe);
 389     unsigned i;
 390
 391     nouveau_bufctx_reset(nv30->bufctx, BUFCTX_VTXBUF);
 392
 393     for (i = 0; i < count; ++i)
 394        pipe_resource_reference(&nv30->vtxbuf[i].buffer, vb[i].buffer);
 395     for (; i < nv30->num_vtxbufs; ++i)
 396        pipe_resource_reference(&nv30->vtxbuf[i].buffer, NULL);
 397
 398     memcpy(nv30->vtxbuf, vb, sizeof(*vb) * count);
 399     nv30->num_vtxbufs = count;
 400
 401     nv30->dirty |= NV30_NEW_ARRAYS;
 402 }
 403
 404 static void
 405 nv30_set_index_buffer(struct pipe_context *pipe,
 406                       const struct pipe_index_buffer *ib)
 407 {
 408     struct nv30_context *nv30 = nv30_context(pipe);
 409
 410     if (ib) {
 411        pipe_resource_reference(&nv30->idxbuf.buffer, ib->buffer);
 412        memcpy(&nv30->idxbuf, ib, sizeof(nv30->idxbuf));
 413     } else {
 414        pipe_resource_reference(&nv30->idxbuf.buffer, NULL);
 415     }
 416 }
 417
 418 void
 419 nv30_state_init(struct pipe_context *pipe)
 420 {
 421    pipe->create_blend_state = nv30_blend_state_create;
 422    pipe->bind_blend_state = nv30_blend_state_bind;
 423    pipe->delete_blend_state = nv30_blend_state_delete;
 424
 425    pipe->create_rasterizer_state = nv30_rasterizer_state_create;
 426    pipe->bind_rasterizer_state = nv30_rasterizer_state_bind;
 427    pipe->delete_rasterizer_state = nv30_rasterizer_state_delete;
 428
 429    pipe->create_depth_stencil_alpha_state = nv30_zsa_state_create;
 430    pipe->bind_depth_stencil_alpha_state = nv30_zsa_state_bind;
 431    pipe->delete_depth_stencil_alpha_state = nv30_zsa_state_delete;
 432
 433    pipe->set_blend_color = nv30_set_blend_color;
 434    pipe->set_stencil_ref = nv30_set_stencil_ref;
 435    pipe->set_clip_state = nv30_set_clip_state;
 436    pipe->set_sample_mask = nv30_set_sample_mask;
 437    pipe->set_constant_buffer = nv30_set_constant_buffer;
 438    pipe->set_framebuffer_state = nv30_set_framebuffer_state;
 439    pipe->set_polygon_stipple = nv30_set_polygon_stipple;
 440    pipe->set_scissor_state = nv30_set_scissor_state;
 441    pipe->set_viewport_state = nv30_set_viewport_state;
 442
 443    pipe->set_vertex_buffers = nv30_set_vertex_buffers;
 444    pipe->set_index_buffer = nv30_set_index_buffer;
 445
 446    pipe->redefine_user_buffer = u_default_redefine_user_buffer;
 447 }