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 pipe_context* pipe,
  27                                struct pipe_surface* dest,
  28                                unsigned x, unsigned y,
  29                                unsigned w, unsigned h)
  30 {
  31     struct r300_context* r300 = r300_context(pipe);
  32     CS_LOCALS(r300);
  33     struct r300_capabilities* caps = r300_screen(pipe->screen)->caps;
  34     struct r300_texture* tex = (struct r300_texture*)dest->texture;
  35     unsigned pixpitch = tex->stride / tex->tex.block.size;
  36
  37     r300_emit_blend_state(r300, &blend_clear_state);
  38     r300_emit_blend_color_state(r300, &blend_color_clear_state);
  39     r300_emit_dsa_state(r300, &dsa_clear_state);
  40     r300_emit_rs_state(r300, &rs_clear_state);
  41
  42     /* XXX these magic numbers should be explained when
  43      * this becomes a cached state object */
  44     if (caps->has_tcl) {
  45         r300_emit_vertex_shader(r300, &r300_passthrough_vertex_shader);
  46     } else {
  47         OUT_CS_REG(R300_VAP_CNTL, R300_PVS_NUM_SLOTS(5) |
  48                 R300_PVS_NUM_CNTLRS(5) |
  49                 R300_PVS_NUM_FPUS(caps->num_vert_fpus) |
  50                 R300_PVS_VF_MAX_VTX_NUM(12));
  51     }
  52
  53     BEGIN_CS(15);
  54
  55     /* Pixel scissors. */
  56     OUT_CS_REG_SEQ(R300_SC_SCISSORS_TL, 2);
  57     if (caps->is_r500) {
  58         OUT_CS((x << R300_SCISSORS_X_SHIFT) | (y << R300_SCISSORS_Y_SHIFT));
  59         OUT_CS((w << R300_SCISSORS_X_SHIFT) | (h << R300_SCISSORS_Y_SHIFT));
  60     } else {
  61         /* Non-R500 chipsets have an offset of 1440 in their scissors. */
  62         OUT_CS(((x + 1440) << R300_SCISSORS_X_SHIFT) |
  63                 ((y + 1440) << R300_SCISSORS_Y_SHIFT));
  64         OUT_CS(((w + 1440) << R300_SCISSORS_X_SHIFT) |
  65                 ((h + 1440) << R300_SCISSORS_Y_SHIFT));
  66     }
  67
  68     /* Flush colorbuffer and blend caches. */
  69     OUT_CS_REG(R300_RB3D_DSTCACHE_CTLSTAT,
  70         R300_RB3D_DSTCACHE_CTLSTAT_DC_FLUSH_FLUSH_DIRTY_3D |
  71         R300_RB3D_DSTCACHE_CTLSTAT_DC_FINISH_SIGNAL);
  72     OUT_CS_REG(R300_ZB_ZCACHE_CTLSTAT,
  73         R300_ZB_ZCACHE_CTLSTAT_ZC_FLUSH_FLUSH_AND_FREE |
  74         R300_ZB_ZCACHE_CTLSTAT_ZC_FREE_FREE);
  75
  76     /* Setup colorbuffer. */
  77     OUT_CS_REG_SEQ(R300_RB3D_COLOROFFSET0, 1);
  78     OUT_CS_RELOC(tex->buffer, 0, 0, RADEON_GEM_DOMAIN_VRAM, 0);
  79     OUT_CS_REG(R300_RB3D_COLORPITCH0, pixpitch |
  80         r300_translate_colorformat(tex->tex.format));
  81     OUT_CS_REG(RB3D_COLOR_CHANNEL_MASK, 0xf);
  82
  83     END_CS;
  84 }
  85
  86 /* Provides pipe_context's "surface_fill". Commonly used for clearing
  87  * buffers. */
  88 static void r300_surface_fill(struct pipe_context* pipe,
  89                               struct pipe_surface* dest,
  90                               unsigned x, unsigned y,
  91                               unsigned w, unsigned h,
  92                               unsigned color)
  93 {
  94     struct r300_context* r300 = r300_context(pipe);
  95     CS_LOCALS(r300);
  96     struct r300_capabilities* caps = r300_screen(pipe->screen)->caps;
  97     struct r300_texture* tex = (struct r300_texture*)dest->texture;
  98     int i;
  99     float r, g, b, a, depth;
 100     unsigned pixpitch = tex->stride / tex->tex.block.size;
 101
 102     a = (float)((color >> 24) & 0xff) / 255.0f;
 103     r = (float)((color >> 16) & 0xff) / 255.0f;
 104     g = (float)((color >>  8) & 0xff) / 255.0f;
 105     b = (float)((color >>  0) & 0xff) / 255.0f;
 106     debug_printf("r300: Filling surface %p at (%d,%d),"
 107         " dimensions %dx%d (pixel pitch %d), color 0x%x\n",
 108         dest, x, y, w, h, pixpitch, color);
 109
 110     /* Fallback? */
 111     if (FALSE) {
 112         debug_printf("r300: Falling back on surface clear...");
 113         util_surface_fill(pipe, dest, x, y, w, h, color);
 114         return;
 115     }
 116
 117     r300_surface_setup(r300, dest, x, y, w, h);
 118
 119     /* Fragment shader setup */
 120     if (caps->is_r500) {
 121         r500_emit_fragment_shader(r300, &r500_passthrough_fragment_shader);
 122         r300_emit_rs_block_state(r300, &r500_rs_block_clear_state);
 123     } else {
 124         r300_emit_fragment_shader(r300, &r300_passthrough_fragment_shader);
 125         r300_emit_rs_block_state(r300, &r300_rs_block_clear_state);
 126     }
 127
 128     BEGIN_CS(31);
 129
 130     /* VAP stream control, mapping from input memory to PVS/RS memory */
 131     if (caps->has_tcl) {
 132         OUT_CS_REG(R300_VAP_PROG_STREAM_CNTL_0,
 133             (R300_DATA_TYPE_FLOAT_4 << R300_DATA_TYPE_0_SHIFT) |
 134             ((R300_LAST_VEC | (1 << R300_DST_VEC_LOC_SHIFT) |
 135                 R300_DATA_TYPE_FLOAT_4) << R300_DATA_TYPE_1_SHIFT));
 136     } else {
 137         OUT_CS_REG(R300_VAP_PROG_STREAM_CNTL_0,
 138             (R300_DATA_TYPE_FLOAT_4 << R300_DATA_TYPE_0_SHIFT) |
 139             ((R300_LAST_VEC | (2 << R300_DST_VEC_LOC_SHIFT) |
 140                 R300_DATA_TYPE_FLOAT_4) << R300_DATA_TYPE_1_SHIFT));
 141     }
 142     OUT_CS_REG(R300_VAP_PROG_STREAM_CNTL_EXT_0,
 143             (R300_VAP_SWIZZLE_XYZW << R300_SWIZZLE0_SHIFT) |
 144             (R300_VAP_SWIZZLE_XYZW << R300_SWIZZLE1_SHIFT));
 145
 146     /* VAP format controls */
 147     OUT_CS_REG(R300_VAP_OUTPUT_VTX_FMT_0,
 148             R300_VAP_OUTPUT_VTX_FMT_0__POS_PRESENT |
 149             R300_VAP_OUTPUT_VTX_FMT_0__COLOR_0_PRESENT);
 150     OUT_CS_REG(R300_VAP_OUTPUT_VTX_FMT_1, 0x0);
 151
 152     /* Disable textures */
 153     OUT_CS_REG(R300_TX_ENABLE, 0x0);
 154
 155     /* Viewport setup */
 156     OUT_CS_REG_SEQ(R300_SE_VPORT_XSCALE, 6);
 157     OUT_CS_32F(1.0);
 158     OUT_CS_32F((float)x);
 159     OUT_CS_32F(1.0);
 160     OUT_CS_32F((float)y);
 161     OUT_CS_32F(1.0);
 162     OUT_CS_32F(0.0);
 163
 164     /* The size of the point we're about to draw, in sixths of pixels */
 165     OUT_CS_REG(R300_GA_POINT_SIZE,
 166         ((h * 6) & R300_POINTSIZE_Y_MASK) |
 167         ((w * 6) << R300_POINTSIZE_X_SHIFT));
 168
 169     /* Packet3 with our point vertex */
 170     OUT_CS_PKT3(R200_3D_DRAW_IMMD_2, 8);
 171     OUT_CS(R300_PRIM_TYPE_POINT | R300_PRIM_WALK_RING |
 172             (1 << R300_PRIM_NUM_VERTICES_SHIFT));
 173     /* Position */
 174     OUT_CS_32F(w / 2.0);
 175     OUT_CS_32F(h / 2.0);
 176     OUT_CS_32F(1.0);
 177     OUT_CS_32F(1.0);
 178     /* Color */
 179     OUT_CS_32F(r);
 180     OUT_CS_32F(g);
 181     OUT_CS_32F(b);
 182     OUT_CS_32F(a);
 183
 184     /* XXX figure out why this is 0xA and not 0x2 */
 185     OUT_CS_REG(R300_RB3D_DSTCACHE_CTLSTAT, 0xA);
 186     /* XXX OUT_CS_REG(R300_ZB_ZCACHE_CTLSTAT,
 187         R300_ZB_ZCACHE_CTLSTAT_ZC_FLUSH_FLUSH_AND_FREE |
 188         R300_ZB_ZCACHE_CTLSTAT_ZC_FREE_FREE); */
 189
 190     END_CS;
 191
 192     r300->dirty_hw++;
 193 }
 194
 195 static void r300_surface_copy(struct pipe_context* pipe,
 196                               struct pipe_surface* dest,
 197                               unsigned destx, unsigned desty,
 198                               struct pipe_surface* src,
 199                               unsigned srcx, unsigned srcy,
 200                               unsigned w, unsigned h)
 201 {
 202     struct r300_context* r300 = r300_context(pipe);
 203     CS_LOCALS(r300);
 204     struct r300_capabilities* caps = r300_screen(pipe->screen)->caps;
 205     struct r300_texture* srctex = (struct r300_texture*)src->texture;
 206     struct r300_texture* desttex = (struct r300_texture*)dest->texture;
 207
 208     unsigned pixpitch = srctex->stride / srctex->tex.block.size;
 209     debug_printf("r300: Copying surface %p at (%d,%d) to %p at (%d, %d),"
 210         " dimensions %dx%d (pixel pitch %d)\n",
 211         src, srcx, srcy, dest, destx, desty, w, h, pixpitch);
 212
 213     if ((srctex == desttex) &&
 214             ((destx < srcx + w) || (srcx < destx + w)) &&
 215             ((desty < srcy + h) || (srcy < desty + h))) {
 216         debug_printf("r300: Falling back on surface_copy\n");
 217         util_surface_copy(pipe, FALSE, dest, destx, desty, src,
 218                 srcx, srcy, w, h);
 219     }
 220
 221     r300_emit_sampler(r300, &r300_sampler_copy_state, 0);
 222     r300_emit_texture(r300, srctex, 0);
 223     r300_flush_textures(r300);
 224
 225     /* Fragment shader setup */
 226     if (caps->is_r500) {
 227         r500_emit_fragment_shader(r300, &r500_texture_fragment_shader);
 228         r300_emit_rs_block_state(r300, &r500_rs_block_copy_state);
 229     } else {
 230         r300_emit_fragment_shader(r300, &r300_texture_fragment_shader);
 231         r300_emit_rs_block_state(r300, &r300_rs_block_copy_state);
 232     }
 233
 234     /* VAP stream control, mapping from input memory to PVS/RS memory */
 235     if (caps->has_tcl) {
 236         OUT_CS_REG(R300_VAP_PROG_STREAM_CNTL_0,
 237             (R300_DATA_TYPE_FLOAT_2 << R300_DATA_TYPE_0_SHIFT) |
 238             ((R300_LAST_VEC | (1 << R300_DST_VEC_LOC_SHIFT) |
 239                 R300_DATA_TYPE_FLOAT_2) << R300_DATA_TYPE_1_SHIFT));
 240     } else {
 241         OUT_CS_REG(R300_VAP_PROG_STREAM_CNTL_0,
 242             (R300_DATA_TYPE_FLOAT_2 << R300_DATA_TYPE_0_SHIFT) |
 243             ((R300_LAST_VEC | (6 << R300_DST_VEC_LOC_SHIFT) |
 244                 R300_DATA_TYPE_FLOAT_2) << R300_DATA_TYPE_1_SHIFT));
 245     }
 246     OUT_CS_REG(R300_VAP_PROG_STREAM_CNTL_EXT_0,
 247             (R300_VAP_SWIZZLE_XYZW << R300_SWIZZLE0_SHIFT) |
 248             (R300_VAP_SWIZZLE_XYZW << R300_SWIZZLE1_SHIFT));
 249
 250     /* VAP format controls */
 251     OUT_CS_REG(R300_VAP_OUTPUT_VTX_FMT_0,
 252             R300_VAP_OUTPUT_VTX_FMT_0__POS_PRESENT);
 253     /* Two components of texture 0 */
 254     OUT_CS_REG(R300_VAP_OUTPUT_VTX_FMT_1, 0x2);
 255
 256     /* Packet3 with our texcoords */
 257     OUT_CS_PKT3(R200_3D_DRAW_IMMD_2, 8);
 258     OUT_CS(R300_PRIM_TYPE_QUADS | R300_PRIM_WALK_RING |
 259             (4 << R300_PRIM_NUM_VERTICES_SHIFT));
 260     /* (x    , y    ) */
 261     OUT_CS_32F((float)destx);
 262     OUT_CS_32F((float)desty);
 263     OUT_CS_32F((float)srcx);
 264     OUT_CS_32F((float)srcy);
 265     /* (x    , y + h) */
 266     OUT_CS_32F((float)destx);
 267     OUT_CS_32F((float)(desty + h));
 268     OUT_CS_32F((float)srcx);
 269     OUT_CS_32F((float)(srcy + h));
 270     /* (x + w, y + h) */
 271     OUT_CS_32F((float)(destx + w));
 272     OUT_CS_32F((float)(desty + h));
 273     OUT_CS_32F((float)(srcx + w));
 274     OUT_CS_32F((float)(srcy + h));
 275     /* (x + w, y    ) */
 276     OUT_CS_32F((float)(destx + w));
 277     OUT_CS_32F((float)desty);
 278     OUT_CS_32F((float)(srcx + w));
 279     OUT_CS_32F((float)srcy);
 280
 281     OUT_CS_REG(R300_RB3D_DSTCACHE_CTLSTAT, 0xA);
 282
 283     r300->dirty_hw++;
 284 }
 285
 286 void r300_init_surface_functions(struct r300_context* r300)
 287 {
 288     r300->context.surface_fill = r300_surface_fill;
 289     r300->context.surface_copy = r300_surface_copy;
 290 }