src/gallium/drivers/r300/r300_emit.c

   1 /*
   2  * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
   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  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE. */
  22
  23 /* r300_emit: Functions for emitting state. */
  24
  25 #include "r300_emit.h"
  26
  27 void r300_emit_blend_state(struct r300_context* r300,
  28                            struct r300_blend_state* blend)
  29 {
  30     CS_LOCALS(r300);
  31     BEGIN_CS(7);
  32     OUT_CS_REG_SEQ(R300_RB3D_CBLEND, 2);
  33     OUT_CS(blend->blend_control);
  34     OUT_CS(blend->alpha_blend_control);
  35     OUT_CS_REG(R300_RB3D_ROPCNTL, blend->rop);
  36     OUT_CS_REG(R300_RB3D_DITHER_CTL, blend->dither);
  37     END_CS;
  38 }
  39
  40 void r300_emit_blend_color_state(struct r300_context* r300,
  41                                  struct r300_blend_color_state* bc)
  42 {
  43     struct r300_screen* r300screen = r300_screen(r300->context.screen);
  44     CS_LOCALS(r300);
  45
  46     if (r300screen->caps->is_r500) {
  47         BEGIN_CS(3);
  48         OUT_CS_REG_SEQ(R500_RB3D_CONSTANT_COLOR_AR, 2);
  49         OUT_CS(bc->blend_color_red_alpha);
  50         OUT_CS(bc->blend_color_green_blue);
  51         END_CS;
  52     } else {
  53         BEGIN_CS(2);
  54         OUT_CS_REG(R300_RB3D_BLEND_COLOR, bc->blend_color);
  55         END_CS;
  56     }
  57 }
  58
  59 void r300_emit_dsa_state(struct r300_context* r300,
  60                            struct r300_dsa_state* dsa)
  61 {
  62     struct r300_screen* r300screen = r300_screen(r300->context.screen);
  63     CS_LOCALS(r300);
  64
  65     BEGIN_CS(r300screen->caps->is_r500 ? 8 : 8);
  66     OUT_CS_REG(R300_FG_ALPHA_FUNC, dsa->alpha_function);
  67     /* XXX figure out the r300 counterpart for this */
  68     if (r300screen->caps->is_r500) {
  69         /* OUT_CS_REG(R500_FG_ALPHA_VALUE, dsa->alpha_reference); */
  70     }
  71     OUT_CS_REG_SEQ(R300_ZB_CNTL, 3);
  72     OUT_CS(dsa->z_buffer_control);
  73     OUT_CS(dsa->z_stencil_control);
  74     OUT_CS(dsa->stencil_ref_mask);
  75     OUT_CS_REG(R300_ZB_ZTOP, dsa->z_buffer_top);
  76     if (r300screen->caps->is_r500) {
  77         /* OUT_CS_REG(R500_ZB_STENCILREFMASK_BF, dsa->stencil_ref_bf); */
  78     }
  79     END_CS;
  80 }
  81
  82 void r300_emit_fragment_shader(struct r300_context* r300,
  83                                struct r300_fragment_shader* fs)
  84 {
  85     CS_LOCALS(r300);
  86     int i;
  87
  88     BEGIN_CS(22);
  89
  90     OUT_CS_REG(R300_US_CONFIG, MAX2(fs->indirections - 1, 0));
  91     OUT_CS_REG(R300_US_PIXSIZE, fs->shader.stack_size);
  92     /* XXX figure out exactly how big the sizes are on this reg */
  93     OUT_CS_REG(R300_US_CODE_OFFSET, 0x0);
  94     /* XXX figure these ones out a bit better kthnx */
  95     OUT_CS_REG(R300_US_CODE_ADDR_0, 0x0);
  96     OUT_CS_REG(R300_US_CODE_ADDR_1, 0x0);
  97     OUT_CS_REG(R300_US_CODE_ADDR_2, 0x0);
  98     OUT_CS_REG(R300_US_CODE_ADDR_3, R300_RGBA_OUT);
  99
 100     for (i = 0; i < fs->alu_instruction_count; i++) {
 101         OUT_CS_REG(R300_US_ALU_RGB_INST_0 + (4 * i),
 102             fs->instructions[i].alu_rgb_inst);
 103         OUT_CS_REG(R300_US_ALU_RGB_ADDR_0 + (4 * i),
 104             fs->instructions[i].alu_rgb_addr);
 105         OUT_CS_REG(R300_US_ALU_ALPHA_INST_0 + (4 * i),
 106             fs->instructions[i].alu_alpha_inst);
 107         OUT_CS_REG(R300_US_ALU_ALPHA_ADDR_0 + (4 * i),
 108             fs->instructions[i].alu_alpha_addr);
 109     }
 110
 111     END_CS;
 112 }
 113
 114 void r500_emit_fragment_shader(struct r300_context* r300,
 115                                struct r500_fragment_shader* fs)
 116 {
 117     CS_LOCALS(r300);
 118     int i;
 119
 120     BEGIN_CS(9 + (fs->instruction_count * 6));
 121     OUT_CS_REG(R500_US_CONFIG, R500_ZERO_TIMES_ANYTHING_EQUALS_ZERO);
 122     OUT_CS_REG(R500_US_PIXSIZE, fs->shader.stack_size);
 123     OUT_CS_REG(R500_US_CODE_ADDR, R500_US_CODE_START_ADDR(0) |
 124         R500_US_CODE_END_ADDR(fs->instruction_count));
 125
 126     OUT_CS_REG(R500_GA_US_VECTOR_INDEX, R500_GA_US_VECTOR_INDEX_TYPE_INSTR);
 127     OUT_CS_ONE_REG(R500_GA_US_VECTOR_DATA,
 128         fs->instruction_count * 6);
 129     for (i = 0; i < fs->instruction_count; i++) {
 130         OUT_CS(fs->instructions[i].inst0);
 131         OUT_CS(fs->instructions[i].inst1);
 132         OUT_CS(fs->instructions[i].inst2);
 133         OUT_CS(fs->instructions[i].inst3);
 134         OUT_CS(fs->instructions[i].inst4);
 135         OUT_CS(fs->instructions[i].inst5);
 136     }
 137     END_CS;
 138 }
 139
 140 /* Translate pipe_format into US_OUT_FMT. Note that formats are stored from
 141  * C3 to C0. */
 142 uint32_t translate_out_fmt(enum pipe_format format)
 143 {
 144     switch (format) {
 145         case PIPE_FORMAT_A8R8G8B8_UNORM:
 146             return R300_US_OUT_FMT_C4_8 |
 147                 R300_C0_SEL_B | R300_C1_SEL_G |
 148                 R300_C2_SEL_R | R300_C3_SEL_A;
 149         default:
 150             return R300_US_OUT_FMT_UNUSED;
 151     }
 152     return 0;
 153 }
 154
 155 /* XXX add pitch, stride, clean up */
 156 void r300_emit_fb_state(struct r300_context* r300,
 157                         struct pipe_framebuffer_state* fb)
 158 {
 159     CS_LOCALS(r300);
 160     struct r300_texture* tex;
 161     int i;
 162
 163     BEGIN_CS((6 * fb->nr_cbufs) + (fb->zsbuf ? 6 : 0) + 4);
 164     for (i = 0; i < fb->nr_cbufs; i++) {
 165         tex = (struct r300_texture*)fb->cbufs[i]->texture;
 166         OUT_CS_REG_SEQ(R300_RB3D_COLOROFFSET0 + (4 * i), 1);
 167         OUT_CS_RELOC(tex->buffer, 0, 0, RADEON_GEM_DOMAIN_VRAM, 0);
 168
 169         OUT_CS_REG(R300_US_OUT_FMT_0 + (4 * i),
 170             translate_out_fmt(fb->cbufs[i]->format));
 171     }
 172
 173     if (fb->zsbuf) {
 174         tex = (struct r300_texture*)fb->zsbuf->texture;
 175         OUT_CS_REG_SEQ(R300_ZB_DEPTHOFFSET, 1);
 176         OUT_CS_RELOC(tex->buffer, 0, 0, RADEON_GEM_DOMAIN_VRAM, 0);
 177         if (fb->zsbuf->format == PIPE_FORMAT_Z24S8_UNORM) {
 178             OUT_CS_REG(R300_ZB_FORMAT,
 179                 R300_DEPTHFORMAT_24BIT_INT_Z_8BIT_STENCIL);
 180         } else {
 181             OUT_CS_REG(R300_ZB_FORMAT, 0x0);
 182         }
 183     }
 184
 185     OUT_CS_REG(R300_RB3D_DSTCACHE_CTLSTAT,
 186         R300_RB3D_DSTCACHE_CTLSTAT_DC_FREE_FREE_3D_TAGS |
 187         R300_RB3D_DSTCACHE_CTLSTAT_DC_FLUSH_FLUSH_DIRTY_3D);
 188     OUT_CS_REG(R300_ZB_ZCACHE_CTLSTAT,
 189         R300_ZB_ZCACHE_CTLSTAT_ZC_FLUSH_FLUSH_AND_FREE |
 190         R300_ZB_ZCACHE_CTLSTAT_ZC_FREE_FREE);
 191     END_CS;
 192 }
 193
 194 void r300_emit_rs_state(struct r300_context* r300, struct r300_rs_state* rs)
 195 {
 196     CS_LOCALS(r300);
 197
 198     BEGIN_CS(20);
 199     OUT_CS_REG(R300_VAP_CNTL_STATUS, rs->vap_control_status);
 200     OUT_CS_REG(R300_GA_POINT_SIZE, rs->point_size);
 201     OUT_CS_REG_SEQ(R300_GA_POINT_MINMAX, 2);
 202     OUT_CS(rs->point_minmax);
 203     OUT_CS(rs->line_control);
 204     OUT_CS_REG_SEQ(R300_SU_POLY_OFFSET_FRONT_SCALE, 6);
 205     OUT_CS(rs->depth_scale_front);
 206     OUT_CS(rs->depth_offset_front);
 207     OUT_CS(rs->depth_scale_back);
 208     OUT_CS(rs->depth_offset_back);
 209     OUT_CS(rs->polygon_offset_enable);
 210     OUT_CS(rs->cull_mode);
 211     OUT_CS_REG(R300_GA_LINE_STIPPLE_CONFIG, rs->line_stipple_config);
 212     OUT_CS_REG(R300_GA_LINE_STIPPLE_VALUE, rs->line_stipple_value);
 213     OUT_CS_REG(R300_GA_COLOR_CONTROL, rs->color_control);
 214     END_CS;
 215 }
 216
 217 void r300_emit_rs_block_state(struct r300_context* r300,
 218                               struct r300_rs_block* rs)
 219 {
 220     struct r300_screen* r300screen = r300_screen(r300->context.screen);
 221     CS_LOCALS(r300);
 222     int i;
 223
 224     BEGIN_CS(21);
 225     if (r300screen->caps->is_r500) {
 226         OUT_CS_REG_SEQ(R500_RS_IP_0, 8);
 227     } else {
 228         OUT_CS_REG_SEQ(R300_RS_IP_0, 8);
 229     }
 230     for (i = 0; i < 8; i++) {
 231         OUT_CS(rs->ip[i]);
 232     }
 233
 234     OUT_CS_REG_SEQ(R300_RS_COUNT, 2);
 235     OUT_CS(rs->count);
 236     OUT_CS(rs->inst_count);
 237
 238     if (r300screen->caps->is_r500) {
 239         OUT_CS_REG_SEQ(R500_RS_INST_0, 8);
 240     } else {
 241         OUT_CS_REG_SEQ(R300_RS_INST_0, 8);
 242     }
 243     for (i = 0; i < 8; i++) {
 244         OUT_CS(rs->inst[i]);
 245     }
 246
 247     END_CS;
 248 }
 249
 250 void r300_emit_sampler(struct r300_context* r300,
 251                        struct r300_sampler_state* sampler, unsigned offset)
 252 {
 253     CS_LOCALS(r300);
 254
 255     BEGIN_CS(6);
 256     OUT_CS_REG(R300_TX_FILTER0_0 + (offset * 4), sampler->filter0);
 257     OUT_CS_REG(R300_TX_FILTER1_0 + (offset * 4), sampler->filter1);
 258     OUT_CS_REG(R300_TX_BORDER_COLOR_0 + (offset * 4), sampler->border_color);
 259     END_CS;
 260 }
 261
 262 void r300_emit_scissor_state(struct r300_context* r300,
 263                              struct r300_scissor_state* scissor)
 264 {
 265     CS_LOCALS(r300);
 266
 267     BEGIN_CS(3);
 268     OUT_CS_REG_SEQ(R300_SC_SCISSORS_TL, 2);
 269     OUT_CS(scissor->scissor_top_left);
 270     OUT_CS(scissor->scissor_bottom_right);
 271     END_CS;
 272 }
 273
 274 void r300_emit_texture(struct r300_context* r300,
 275                        struct r300_texture* tex, unsigned offset)
 276 {
 277     CS_LOCALS(r300);
 278
 279     BEGIN_CS(8);
 280     OUT_CS_REG(R300_TX_FORMAT0_0 + (offset * 4), tex->state.format0);
 281     OUT_CS_REG(R300_TX_FORMAT1_0 + (offset * 4), tex->state.format1);
 282     OUT_CS_REG(R300_TX_FORMAT2_0 + (offset * 4), tex->state.format2);
 283     OUT_CS_REG_SEQ(R300_TX_OFFSET_0 + (offset * 4), 1);
 284     OUT_CS_RELOC(tex->buffer, 0, 0, RADEON_GEM_DOMAIN_GTT |
 285             RADEON_GEM_DOMAIN_VRAM, 0);
 286     END_CS;
 287 }
 288
 289 void r300_emit_vertex_format_state(struct r300_context* r300)
 290 {
 291     CS_LOCALS(r300);
 292     int i;
 293
 294     BEGIN_CS(26);
 295     OUT_CS_REG(R300_VAP_VTX_SIZE, r300->vertex_info.vinfo.size);
 296
 297     OUT_CS_REG_SEQ(R300_VAP_VTX_STATE_CNTL, 2);
 298     OUT_CS(r300->vertex_info.vinfo.hwfmt[0]);
 299     OUT_CS(r300->vertex_info.vinfo.hwfmt[1]);
 300     OUT_CS_REG_SEQ(R300_VAP_OUTPUT_VTX_FMT_0, 2);
 301     OUT_CS(r300->vertex_info.vinfo.hwfmt[2]);
 302     OUT_CS(r300->vertex_info.vinfo.hwfmt[3]);
 303
 304     OUT_CS_REG_SEQ(R300_VAP_PROG_STREAM_CNTL_0, 8);
 305     for (i = 0; i < 8; i++) {
 306         OUT_CS(r300->vertex_info.vap_prog_stream_cntl[i]);
 307     }
 308     OUT_CS_REG_SEQ(R300_VAP_PROG_STREAM_CNTL_EXT_0, 8);
 309     for (i = 0; i < 8; i++) {
 310         OUT_CS(r300->vertex_info.vap_prog_stream_cntl_ext[i]);
 311     }
 312     END_CS;
 313 }
 314
 315 static void r300_flush_textures(struct r300_context* r300)
 316 {
 317     CS_LOCALS(r300);
 318
 319     BEGIN_CS(4);
 320     OUT_CS_REG(R300_TX_INVALTAGS, 0);
 321     OUT_CS_REG(R300_TX_ENABLE, (1 << r300->texture_count) - 1);
 322     END_CS;
 323 }
 324
 325 /* Emit all dirty state. */
 326 void r300_emit_dirty_state(struct r300_context* r300)
 327 {
 328     struct r300_screen* r300screen = r300_screen(r300->context.screen);
 329     int i;
 330
 331     if (!(r300->dirty_state) && !(r300->dirty_hw)) {
 332         return;
 333     }
 334
 335     r300_update_derived_state(r300);
 336
 337     /* XXX check size */
 338
 339     if (r300->dirty_state & R300_NEW_BLEND) {
 340         r300_emit_blend_state(r300, r300->blend_state);
 341         r300->dirty_state &= ~R300_NEW_BLEND;
 342     }
 343
 344     if (r300->dirty_state & R300_NEW_BLEND_COLOR) {
 345         r300_emit_blend_color_state(r300, r300->blend_color_state);
 346         r300->dirty_state &= ~R300_NEW_BLEND_COLOR;
 347     }
 348
 349     if (r300->dirty_state & R300_NEW_DSA) {
 350         r300_emit_dsa_state(r300, r300->dsa_state);
 351         r300->dirty_state &= ~R300_NEW_DSA;
 352     }
 353
 354     if (r300->dirty_state & R300_NEW_FRAGMENT_SHADER) {
 355         if (r300screen->caps->is_r500) {
 356             r500_emit_fragment_shader(r300,
 357                 (struct r500_fragment_shader*)r300->fs);
 358         } else {
 359             r300_emit_fragment_shader(r300,
 360                 (struct r300_fragment_shader*)r300->fs);
 361         }
 362         r300->dirty_state &= ~R300_NEW_FRAGMENT_SHADER;
 363     }
 364
 365     if (r300->dirty_state & R300_NEW_FRAMEBUFFERS) {
 366         r300_emit_fb_state(r300, &r300->framebuffer_state);
 367         r300->dirty_state &= ~R300_NEW_FRAMEBUFFERS;
 368     }
 369
 370     if (r300->dirty_state & R300_NEW_RASTERIZER) {
 371         r300_emit_rs_state(r300, r300->rs_state);
 372         r300->dirty_state &= ~R300_NEW_RASTERIZER;
 373     }
 374
 375     if (r300->dirty_state & R300_NEW_RS_BLOCK) {
 376         r300_emit_rs_block_state(r300, r300->rs_block);
 377         r300->dirty_state &= ~R300_NEW_RS_BLOCK;
 378     }
 379
 380     if (r300->dirty_state & R300_ANY_NEW_SAMPLERS) {
 381         for (i = 0; i < r300->sampler_count; i++) {
 382             if (r300->dirty_state & (R300_NEW_SAMPLER << i)) {
 383                 r300_emit_sampler(r300, r300->sampler_states[i], i);
 384                 r300->dirty_state &= ~(R300_NEW_SAMPLER << i);
 385             }
 386             r300_flush_textures(r300);
 387         }
 388     }
 389
 390     if (r300->dirty_state & R300_NEW_SCISSOR) {
 391         r300_emit_scissor_state(r300, r300->scissor_state);
 392         r300->dirty_state &= ~R300_NEW_SCISSOR;
 393     }
 394
 395     if (r300->dirty_state & R300_ANY_NEW_TEXTURES) {
 396         for (i = 0; i < r300->texture_count; i++) {
 397             if (r300->dirty_state & (R300_NEW_TEXTURE << i)) {
 398                 r300_emit_texture(r300, r300->textures[i], i);
 399                 r300->dirty_state &= ~(R300_NEW_TEXTURE << i);
 400             }
 401             r300_flush_textures(r300);
 402         }
 403     }
 404
 405     if (r300->dirty_state & R300_NEW_VERTEX_FORMAT) {
 406         r300_emit_vertex_format_state(r300);
 407         r300->dirty_state &= ~R300_NEW_VERTEX_FORMAT;
 408     }
 409 }