src/gallium/drivers/r300/r300_surface.c

   1 /*
   2  * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
   3  *                Joakim Sindholt <opensource@zhasha.com>
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * on the rights to use, copy, modify, merge, publish, distribute, sub
   9  * license, and/or sell copies of the Software, and to permit persons to whom
  10  * the Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  20  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  21  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  22  * USE OR OTHER DEALINGS IN THE SOFTWARE. */
  23
  24 #include "r300_surface.h"
  25
  26 static void r300_surface_setup(struct r300_context* r300,
  27                                struct r300_texture* dest,
  28                                unsigned x, unsigned y,
  29                                unsigned w, unsigned h)
  30 {
  31     struct r300_capabilities* caps = r300_screen(r300->context.screen)->caps;
  32     unsigned pixpitch = dest->stride / dest->tex.block.size;
  33     CS_LOCALS(r300);
  34
  35     /* Make sure our target BO is okay. */
  36     r300->winsys->add_buffer(r300->winsys, dest->buffer,
  37             0, RADEON_GEM_DOMAIN_VRAM);
  38     if (r300->winsys->validate(r300->winsys)) {
  39         r300->context.flush(&r300->context, 0, NULL);
  40     }
  41
  42     r300_emit_blend_state(r300, &blend_clear_state);
  43     r300_emit_blend_color_state(r300, &blend_color_clear_state);
  44     r300_emit_dsa_state(r300, &dsa_clear_state);
  45     r300_emit_rs_state(r300, &rs_clear_state);
  46
  47     BEGIN_CS(24);
  48
  49     /* Viewport setup */
  50     OUT_CS_REG_SEQ(R300_SE_VPORT_XSCALE, 6);
  51     OUT_CS_32F((float)w);
  52     OUT_CS_32F((float)x);
  53     OUT_CS_32F((float)h);
  54     OUT_CS_32F((float)y);
  55     OUT_CS_32F(1.0);
  56     OUT_CS_32F(0.0);
  57
  58     OUT_CS_REG(R300_VAP_VTE_CNTL, R300_VPORT_X_SCALE_ENA |
  59             R300_VPORT_X_OFFSET_ENA |
  60             R300_VPORT_Y_SCALE_ENA |
  61             R300_VPORT_Y_OFFSET_ENA |
  62             R300_VTX_XY_FMT | R300_VTX_Z_FMT);
  63
  64     /* Pixel scissors. */
  65     OUT_CS_REG_SEQ(R300_SC_SCISSORS_TL, 2);
  66     if (caps->is_r500) {
  67         OUT_CS((x << R300_SCISSORS_X_SHIFT) | (y << R300_SCISSORS_Y_SHIFT));
  68         OUT_CS((w << R300_SCISSORS_X_SHIFT) | (h << R300_SCISSORS_Y_SHIFT));
  69     } else {
  70         /* Non-R500 chipsets have an offset of 1440 in their scissors. */
  71         OUT_CS(((x + 1440) << R300_SCISSORS_X_SHIFT) |
  72                 ((y + 1440) << R300_SCISSORS_Y_SHIFT));
  73         OUT_CS(((w + 1440) << R300_SCISSORS_X_SHIFT) |
  74                 ((h + 1440) << R300_SCISSORS_Y_SHIFT));
  75     }
  76
  77     /* Flush colorbuffer and blend caches. */
  78     OUT_CS_REG(R300_RB3D_DSTCACHE_CTLSTAT,
  79         R300_RB3D_DSTCACHE_CTLSTAT_DC_FLUSH_FLUSH_DIRTY_3D |
  80         R300_RB3D_DSTCACHE_CTLSTAT_DC_FINISH_SIGNAL);
  81     OUT_CS_REG(R300_ZB_ZCACHE_CTLSTAT,
  82         R300_ZB_ZCACHE_CTLSTAT_ZC_FLUSH_FLUSH_AND_FREE |
  83         R300_ZB_ZCACHE_CTLSTAT_ZC_FREE_FREE);
  84
  85     /* Setup colorbuffer. */
  86     OUT_CS_REG_SEQ(R300_RB3D_COLOROFFSET0, 1);
  87     OUT_CS_RELOC(dest->buffer, 0, 0, RADEON_GEM_DOMAIN_VRAM, 0);
  88     OUT_CS_REG(R300_RB3D_COLORPITCH0, pixpitch |
  89         r300_translate_colorformat(dest->tex.format));
  90     OUT_CS_REG(RB3D_COLOR_CHANNEL_MASK, 0xf);
  91
  92     END_CS;
  93 }
  94
  95 /* Provides pipe_context's "surface_fill". Commonly used for clearing
  96  * buffers. */
  97 static void r300_surface_fill(struct pipe_context* pipe,
  98                               struct pipe_surface* dest,
  99                               unsigned x, unsigned y,
 100                               unsigned w, unsigned h,
 101                               unsigned color)
 102 {
 103     int i;
 104     float r, g, b, a, depth;
 105     struct r300_context* r300 = r300_context(pipe);
 106     struct r300_capabilities* caps = r300_screen(pipe->screen)->caps;
 107     struct r300_texture* tex = (struct r300_texture*)dest->texture;
 108     unsigned pixpitch = tex->stride / tex->tex.block.size;
 109     CS_LOCALS(r300);
 110
 111     a = (float)((color >> 24) & 0xff) / 255.0f;
 112     r = (float)((color >> 16) & 0xff) / 255.0f;
 113     g = (float)((color >>  8) & 0xff) / 255.0f;
 114     b = (float)((color >>  0) & 0xff) / 255.0f;
 115     debug_printf("r300: Filling surface %p at (%d,%d),"
 116         " dimensions %dx%d (pixel pitch %d), color 0x%x\n",
 117         dest, x, y, w, h, pixpitch, color);
 118
 119     /* Fallback? */
 120     if (FALSE) {
 121         debug_printf("r300: Falling back on surface clear...");
 122         util_surface_fill(pipe, dest, x, y, w, h, color);
 123         return;
 124     }
 125
 126     r300_surface_setup(r300, tex, x, y, w, h);
 127
 128     /* Vertex shader setup */
 129     if (caps->has_tcl) {
 130         r300_emit_vertex_shader(r300, &r300_passthrough_vertex_shader);
 131     } else {
 132         BEGIN_CS(4);
 133         OUT_CS_REG(R300_VAP_CNTL_STATUS, R300_VAP_TCL_BYPASS);
 134         OUT_CS_REG(R300_VAP_CNTL, R300_PVS_NUM_SLOTS(5) |
 135                 R300_PVS_NUM_CNTLRS(5) |
 136                 R300_PVS_NUM_FPUS(caps->num_vert_fpus) |
 137                 R300_PVS_VF_MAX_VTX_NUM(12));
 138         END_CS;
 139     }
 140
 141     /* Fragment shader setup */
 142     if (caps->is_r500) {
 143         r500_emit_fragment_shader(r300, &r500_passthrough_fragment_shader);
 144         r300_emit_rs_block_state(r300, &r500_rs_block_clear_state);
 145     } else {
 146         r300_emit_fragment_shader(r300, &r300_passthrough_fragment_shader);
 147         r300_emit_rs_block_state(r300, &r300_rs_block_clear_state);
 148     }
 149
 150     BEGIN_CS(24);
 151
 152     /* VAP stream control, mapping from input memory to PVS/RS memory */
 153     if (caps->has_tcl) {
 154         OUT_CS_REG(R300_VAP_PROG_STREAM_CNTL_0,
 155             (R300_DATA_TYPE_FLOAT_4 << R300_DATA_TYPE_0_SHIFT) |
 156             ((R300_LAST_VEC | (1 << R300_DST_VEC_LOC_SHIFT) |
 157                 R300_DATA_TYPE_FLOAT_4) << R300_DATA_TYPE_1_SHIFT));
 158     } else {
 159         OUT_CS_REG(R300_VAP_PROG_STREAM_CNTL_0,
 160             (R300_DATA_TYPE_FLOAT_4 << R300_DATA_TYPE_0_SHIFT) |
 161             ((R300_LAST_VEC | (2 << R300_DST_VEC_LOC_SHIFT) |
 162                 R300_DATA_TYPE_FLOAT_4) << R300_DATA_TYPE_1_SHIFT));
 163     }
 164     OUT_CS_REG(R300_VAP_PROG_STREAM_CNTL_EXT_0,
 165             (R300_VAP_SWIZZLE_XYZW << R300_SWIZZLE0_SHIFT) |
 166             (R300_VAP_SWIZZLE_XYZW << R300_SWIZZLE1_SHIFT));
 167
 168     /* VAP format controls */
 169     OUT_CS_REG(R300_VAP_OUTPUT_VTX_FMT_0,
 170             R300_VAP_OUTPUT_VTX_FMT_0__POS_PRESENT |
 171             R300_VAP_OUTPUT_VTX_FMT_0__COLOR_0_PRESENT);
 172     OUT_CS_REG(R300_VAP_OUTPUT_VTX_FMT_1, 0x0);
 173
 174     /* Disable textures */
 175     OUT_CS_REG(R300_TX_ENABLE, 0x0);
 176
 177     /* The size of the point we're about to draw, in sixths of pixels */
 178     OUT_CS_REG(R300_GA_POINT_SIZE,
 179         ((h * 6)  & R300_POINTSIZE_Y_MASK) |
 180         ((w * 6) << R300_POINTSIZE_X_SHIFT));
 181
 182     /* Packet3 with our point vertex */
 183     OUT_CS_PKT3(R200_3D_DRAW_IMMD_2, 8);
 184     OUT_CS(R300_PRIM_TYPE_POINT | R300_PRIM_WALK_RING |
 185             (1 << R300_PRIM_NUM_VERTICES_SHIFT));
 186     /* Position */
 187     OUT_CS_32F(0.5);
 188     OUT_CS_32F(0.5);
 189     OUT_CS_32F(1.0);
 190     OUT_CS_32F(1.0);
 191     /* Color */
 192     OUT_CS_32F(r);
 193     OUT_CS_32F(g);
 194     OUT_CS_32F(b);
 195     OUT_CS_32F(a);
 196
 197     /* XXX figure out why this is 0xA and not 0x2 */
 198     OUT_CS_REG(R300_RB3D_DSTCACHE_CTLSTAT, 0xA);
 199     /* XXX OUT_CS_REG(R300_ZB_ZCACHE_CTLSTAT,
 200         R300_ZB_ZCACHE_CTLSTAT_ZC_FLUSH_FLUSH_AND_FREE |
 201         R300_ZB_ZCACHE_CTLSTAT_ZC_FREE_FREE); */
 202
 203     END_CS;
 204
 205     r300->dirty_hw++;
 206 }
 207
 208 static void r300_surface_copy(struct pipe_context* pipe,
 209                               struct pipe_surface* dest,
 210                               unsigned destx, unsigned desty,
 211                               struct pipe_surface* src,
 212                               unsigned srcx, unsigned srcy,
 213                               unsigned w, unsigned h)
 214 {
 215     struct r300_context* r300 = r300_context(pipe);
 216     struct r300_capabilities* caps = r300_screen(pipe->screen)->caps;
 217     struct r300_texture* srctex = (struct r300_texture*)src->texture;
 218     struct r300_texture* desttex = (struct r300_texture*)dest->texture;
 219     unsigned pixpitch = srctex->stride / srctex->tex.block.size;
 220     CS_LOCALS(r300);
 221
 222     debug_printf("r300: Copying surface %p at (%d,%d) to %p at (%d, %d),"
 223         " dimensions %dx%d (pixel pitch %d)\n",
 224         src, srcx, srcy, dest, destx, desty, w, h, pixpitch);
 225
 226     if ((srctex == desttex) &&
 227             ((destx < srcx + w) || (srcx < destx + w)) &&
 228             ((desty < srcy + h) || (srcy < desty + h))) {
 229         debug_printf("r300: Falling back on surface_copy\n");
 230         util_surface_copy(pipe, FALSE, dest, destx, desty, src,
 231                 srcx, srcy, w, h);
 232     }
 233
 234     /* Add our source texture to the BO list before emitting anything.
 235      * r300_surface_setup will flush if needed for us. */
 236     r300->winsys->add_buffer(r300->winsys, srctex->buffer,
 237             RADEON_GEM_DOMAIN_GTT | RADEON_GEM_DOMAIN_VRAM, 0);
 238
 239     r300_surface_setup(r300, desttex, destx, desty, w, h);
 240
 241     r300_emit_sampler(r300, &r300_sampler_copy_state, 0);
 242     r300_emit_texture(r300, srctex, 0);
 243     r300_flush_textures(r300);
 244
 245     /* Vertex shader setup */
 246     if (caps->has_tcl) {
 247         r300_emit_vertex_shader(r300, &r300_passthrough_vertex_shader);
 248     } else {
 249         BEGIN_CS(4);
 250         OUT_CS_REG(R300_VAP_CNTL_STATUS, R300_VAP_TCL_BYPASS);
 251         OUT_CS_REG(R300_VAP_CNTL, R300_PVS_NUM_SLOTS(5) |
 252                 R300_PVS_NUM_CNTLRS(5) |
 253                 R300_PVS_NUM_FPUS(caps->num_vert_fpus) |
 254                 R300_PVS_VF_MAX_VTX_NUM(12));
 255         END_CS;
 256     }
 257
 258     /* Fragment shader setup */
 259     if (caps->is_r500) {
 260         r500_emit_fragment_shader(r300, &r500_texture_fragment_shader);
 261         r300_emit_rs_block_state(r300, &r500_rs_block_copy_state);
 262     } else {
 263         r300_emit_fragment_shader(r300, &r300_texture_fragment_shader);
 264         r300_emit_rs_block_state(r300, &r300_rs_block_copy_state);
 265     }
 266
 267     BEGIN_CS(28);
 268     /* VAP stream control, mapping from input memory to PVS/RS memory */
 269     if (caps->has_tcl) {
 270         OUT_CS_REG(R300_VAP_PROG_STREAM_CNTL_0,
 271             (R300_DATA_TYPE_FLOAT_2 << R300_DATA_TYPE_0_SHIFT) |
 272             ((R300_LAST_VEC | (1 << R300_DST_VEC_LOC_SHIFT) |
 273                 R300_DATA_TYPE_FLOAT_2) << R300_DATA_TYPE_1_SHIFT));
 274     } else {
 275         OUT_CS_REG(R300_VAP_PROG_STREAM_CNTL_0,
 276             (R300_DATA_TYPE_FLOAT_2 << R300_DATA_TYPE_0_SHIFT) |
 277             ((R300_LAST_VEC | (6 << R300_DST_VEC_LOC_SHIFT) |
 278                 R300_DATA_TYPE_FLOAT_2) << R300_DATA_TYPE_1_SHIFT));
 279     }
 280     OUT_CS_REG(R300_VAP_PROG_STREAM_CNTL_EXT_0,
 281             (R300_VAP_SWIZZLE_XYZW << R300_SWIZZLE0_SHIFT) |
 282             (R300_VAP_SWIZZLE_XYZW << R300_SWIZZLE1_SHIFT));
 283
 284     /* VAP format controls */
 285     OUT_CS_REG(R300_VAP_OUTPUT_VTX_FMT_0,
 286             R300_VAP_OUTPUT_VTX_FMT_0__POS_PRESENT);
 287     /* Two components of texture 0 */
 288     OUT_CS_REG(R300_VAP_OUTPUT_VTX_FMT_1, 0x2);
 289
 290     /* Packet3 with our texcoords */
 291     OUT_CS_PKT3(R200_3D_DRAW_IMMD_2, 16);
 292     OUT_CS(R300_PRIM_TYPE_QUADS | R300_PRIM_WALK_RING |
 293             (4 << R300_PRIM_NUM_VERTICES_SHIFT));
 294     /* (x    , y    ) */
 295     OUT_CS_32F((float)(destx / dest->width));
 296     OUT_CS_32F((float)(desty / dest->height));
 297     OUT_CS_32F((float)(srcx  / dest->width));
 298     OUT_CS_32F((float)(srcy  / dest->height));
 299     /* (x    , y + h) */
 300     OUT_CS_32F((float)(destx / dest->width));
 301     OUT_CS_32F((float)((desty + h) / dest->height));
 302     OUT_CS_32F((float)(srcx  / dest->width));
 303     OUT_CS_32F((float)((srcy  + h) / dest->height));
 304     /* (x + w, y + h) */
 305     OUT_CS_32F((float)((destx + w) / dest->width));
 306     OUT_CS_32F((float)((desty + h) / dest->height));
 307     OUT_CS_32F((float)((srcx  + w) / dest->width));
 308     OUT_CS_32F((float)((srcy  + h) / dest->height));
 309     /* (x + w, y    ) */
 310     OUT_CS_32F((float)((destx + w) / dest->width));
 311     OUT_CS_32F((float)(desty / dest->height));
 312     OUT_CS_32F((float)((srcx  + w) / dest->width));
 313     OUT_CS_32F((float)(srcy  / dest->height));
 314
 315     OUT_CS_REG(R300_RB3D_DSTCACHE_CTLSTAT, 0xA);
 316
 317     END_CS;
 318
 319     r300->dirty_hw++;
 320 }
 321
 322 void r300_init_surface_functions(struct r300_context* r300)
 323 {
 324     r300->context.surface_fill = r300_surface_fill;
 325     r300->context.surface_copy = r300_surface_copy;
 326 }