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 */
 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((5 * fb->nr_cbufs) + (fb->zsbuf ? 5 : 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     struct r300_screen* r300screen = r300_screen(r300->context.screen);
 197     CS_LOCALS(r300);
 198
 199     BEGIN_CS(13);
 200     OUT_CS_REG(R300_VAP_CNTL_STATUS, rs->vap_control_status);
 201     OUT_CS_REG_SEQ(R300_SU_POLY_OFFSET_FRONT_SCALE, 6);
 202     OUT_CS(rs->depth_scale_front);
 203     OUT_CS(rs->depth_offset_front);
 204     OUT_CS(rs->depth_scale_back);
 205     OUT_CS(rs->depth_offset_back);
 206     OUT_CS(rs->polygon_offset_enable);
 207     OUT_CS(rs->cull_mode);
 208     OUT_CS_REG(R300_GA_LINE_STIPPLE_CONFIG, rs->line_stipple_config);
 209     OUT_CS_REG(R300_GA_LINE_STIPPLE_VALUE, rs->line_stipple_value);
 210     END_CS;
 211 }
 212
 213 void r300_emit_rs_block_state(struct r300_context* r300,
 214                               struct r300_rs_block* rs)
 215 {
 216     struct r300_screen* r300screen = r300_screen(r300->context.screen);
 217     CS_LOCALS(r300);
 218     int i;
 219
 220     BEGIN_CS(21);
 221     if (r300screen->caps->is_r500) {
 222         OUT_CS_REG_SEQ(R500_RS_IP_0, 8);
 223     } else {
 224         OUT_CS_REG_SEQ(R300_RS_IP_0, 8);
 225     }
 226     for (i = 0; i < 8; i++) {
 227         OUT_CS(rs->ip[i]);
 228     }
 229
 230     OUT_CS_REG_SEQ(R300_RS_COUNT, 2);
 231     OUT_CS(rs->count);
 232     OUT_CS(rs->inst_count);
 233
 234     if (r300screen->caps->is_r500) {
 235         OUT_CS_REG_SEQ(R500_RS_INST_0, 8);
 236     } else {
 237         OUT_CS_REG_SEQ(R300_RS_INST_0, 8);
 238     }
 239     for (i = 0; i < 8; i++) {
 240         OUT_CS(rs->inst[i]);
 241     }
 242
 243     END_CS;
 244 }
 245
 246 void r300_emit_scissor_state(struct r300_context* r300,
 247                              struct r300_scissor_state* scissor)
 248 {
 249     CS_LOCALS(r300);
 250
 251     BEGIN_CS(3);
 252     OUT_CS_REG_SEQ(R300_SC_SCISSORS_TL, 2);
 253     OUT_CS(scissor->scissor_top_left);
 254     OUT_CS(scissor->scissor_bottom_right);
 255     END_CS;
 256 }
 257
 258 void r300_emit_vertex_format_state(struct r300_context* r300)
 259 {
 260     CS_LOCALS(r300);
 261     int i;
 262
 263     BEGIN_CS(6);
 264     OUT_CS_REG_SEQ(R300_VAP_VTX_STATE_CNTL, 2);
 265     OUT_CS(r300->vertex_info.vinfo.hwfmt[0]);
 266     OUT_CS(r300->vertex_info.vinfo.hwfmt[1]);
 267     OUT_CS_REG_SEQ(R300_VAP_OUTPUT_VTX_FMT_0, 2);
 268     OUT_CS(r300->vertex_info.vinfo.hwfmt[2]);
 269     OUT_CS(r300->vertex_info.vinfo.hwfmt[3]);
 270     END_CS;
 271
 272     BEGIN_CS(18);
 273     OUT_CS_REG_SEQ(R300_VAP_PROG_STREAM_CNTL_0, 8);
 274     for (i = 0; i < 8; i++) {
 275         OUT_CS(r300->vertex_info.vap_prog_stream_cntl[i]);
 276     }
 277     OUT_CS_REG_SEQ(R300_VAP_PROG_STREAM_CNTL_EXT_0, 8);
 278     for (i = 0; i < 8; i++) {
 279         OUT_CS(r300->vertex_info.vap_prog_stream_cntl_ext[i]);
 280     }
 281     END_CS;
 282 }
 283
 284 /* Emit all dirty state. */
 285 void r300_emit_dirty_state(struct r300_context* r300)
 286 {
 287     struct r300_screen* r300screen = r300_screen(r300->context.screen);
 288     CS_LOCALS(r300);
 289
 290     if (!(r300->dirty_state) && !(r300->dirty_hw)) {
 291         return;
 292     }
 293
 294     r300_update_derived_state(r300);
 295
 296     /* XXX check size */
 297
 298     if (r300->dirty_state & R300_NEW_BLEND) {
 299         r300_emit_blend_state(r300, r300->blend_state);
 300         r300->dirty_state &= ~R300_NEW_BLEND;
 301     }
 302
 303     if (r300->dirty_state & R300_NEW_BLEND_COLOR) {
 304         r300_emit_blend_color_state(r300, r300->blend_color_state);
 305         r300->dirty_state &= ~R300_NEW_BLEND_COLOR;
 306     }
 307
 308     if (r300->dirty_state & R300_NEW_DSA) {
 309         r300_emit_dsa_state(r300, r300->dsa_state);
 310         r300->dirty_state &= ~R300_NEW_DSA;
 311     }
 312
 313     if (r300->dirty_state & R300_NEW_FRAGMENT_SHADER) {
 314         if (r300screen->caps->is_r500) {
 315             r500_emit_fragment_shader(r300,
 316                 (struct r500_fragment_shader*)r300->fs);
 317         } else {
 318             r300_emit_fragment_shader(r300,
 319                 (struct r300_fragment_shader*)r300->fs);
 320         }
 321         r300->dirty_state &= ~R300_NEW_FRAGMENT_SHADER;
 322     }
 323
 324     if (r300->dirty_state & R300_NEW_RASTERIZER) {
 325         r300_emit_rs_state(r300, r300->rs_state);
 326         r300->dirty_state &= ~R300_NEW_RASTERIZER;
 327     }
 328
 329     if (r300->dirty_state & R300_NEW_SCISSOR) {
 330         r300_emit_scissor_state(r300, r300->scissor_state);
 331         r300->dirty_state &= ~R300_NEW_SCISSOR;
 332     }
 333
 334     if (r300->dirty_state & R300_NEW_VERTEX_FORMAT) {
 335         r300_emit_vertex_format_state(r300);
 336         r300->dirty_state &= ~R300_NEW_VERTEX_FORMAT;
 337     }
 338 }