src/gallium/drivers/r300/r300_blit.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 /* Does a "paint" into the specified rectangle.
  24  * Returns 1 on success, 0 on error. */
  25 int r300_fill_blit(struct r300_context* r300,
  26                    unsigned cpp,
  27                    short dst_pitch,
  28                    struct pipe_buffer* dst_buffer,
  29                    unsigned dst_offset,
  30                    short x, short y,
  31                    short w, short h,
  32                    unsigned color)
  33 {
  34     uint32_t dest_type;
  35
  36     /* Check for fallbacks. */
  37     /* XXX we can do YUV surfaces, too, but only in 3D mode. Hmm... */
  38     switch(cpp) {
  39         case 2:
  40         case 6:
  41             dest_type = ATI_DATATYPE_CI8;
  42             break;
  43         case 4:
  44             dest_type = ATI_DATATYPE_RGB565;
  45             break;
  46         case 8:
  47             dest_type = ATI_DATATYPE_ARGB8888;
  48             break;
  49         default:
  50             /* Whatever this is, we can't fill it. (Yet.) */
  51             return 0;
  52     }
  53
  54     /* XXX odds are *incredibly* good that we were in 3D just a bit ago,
  55      * so flush here first. */
  56
  57     /* Set up the 2D engine. */
  58     OUT_CS_REG(RADEON_DEFAULT_SC_BOTTOM_RIGHT,
  59                   RADEON_DEFAULT_SC_RIGHT_MAX | RADEON_DEFAULT_SC_BOTTOM_MAX);
  60     /* XXX I have no idea what these flags mean, is this awesome? (y/n) */
  61     OUT_CS_REG(RADEON_DP_GUI_MASTER_CNTL,
  62                   RADEON_GMC_DST_PITCH_OFFSET_CNTL |
  63                   RADEON_GMC_BRUSH_SOLID_COLOR |
  64                   (dest_type << 8) |
  65                   RADEON_GMC_SRC_DATATYPE_COLOR |
  66                   /* XXX is this the right rop? */
  67                   RADEON_ROP3_ONE |
  68                   RADEON_GMC_CLR_CMP_CNTL_DIS);
  69     /* XXX pack this? */
  70     OUT_CS_REG(RADEON_DP_BRUSH_FRGD_CLR, color);
  71     OUT_CS_REG(RADEON_DP_BRUSH_BKGD_CLR, 0x00000000);
  72     OUT_CS_REG(RADEON_DP_SRC_FRGD_CLR, 0xffffffff);
  73     OUT_CS_REG(RADEON_DP_SRC_BKGD_CLR, 0x00000000);
  74     /* XXX what should this be? */
  75     OUT_CS_REG(RADEON_DP_WRITE_MASK, 0x00000000);
  76     OUT_CS_REG(RADEON_DP_CNTL,
  77                   RADEON_DST_X_LEFT_TO_RIGHT | RADEON_DST_Y_TOP_TO_BOTTOM);
  78     OUT_CS_REG(RADEON_DST_PITCH_OFFSET, 0x0);
  79     /* XXX fix this shit -> OUT_RELOC(dst, 0, RADEON_GEM_DOMAIN_VRAM) */
  80
  81     /* Do the actual paint. */
  82     OUT_CS_REG(RADEON_DST_Y_X, (y << 16) | x);
  83     OUT_CS_REG(RADEON_DST_HEIGHT_WIDTH, (h << 16) | w);
  84
  85     /* Let the 2D engine settle. */
  86     OUT_CS_REG(RADEON_DSTCACHE_CTLSTAT, RADEON_RB2D_DC_FLUSH_ALL);
  87     OUT_CS_REG(RADEON_WAIT_UNTIL,
  88                RADEON_WAIT_2D_IDLECLEAN | RADEON_WAIT_DMA_GUI_IDLE);
  89     return 1;
  90 }