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  1. /**************************************************************************
  2.  *
  3.  * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
  4.  * All Rights Reserved.
  5.  *
  6.  * Permission is hereby granted, free of charge, to any person obtaining a
  7.  * copy of this software and associated documentation files (the
  8.  * "Software"), to deal in the Software without restriction, including
  9.  * without limitation the rights to use, copy, modify, merge, publish,
  10.  * distribute, sub license, and/or sell copies of the Software, and to
  11.  * permit persons to whom the Software is furnished to do so, subject to
  12.  * the following conditions:
  13.  *
  14.  * The above copyright notice and this permission notice (including the
  15.  * next paragraph) shall be included in all copies or substantial portions
  16.  * of the Software.
  17.  *
  18.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19.  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20.  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21.  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22.  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23.  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24.  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25.  *
  26.  **************************************************************************/
  27.  
  28.  
  29. #include "i915_blit.h"
  30. #include "i915_reg.h"
  31. #include "i915_batch.h"
  32. #include "i915_debug.h"
  33.  
  34.  
  35. void
  36. i915_fill_blit(struct i915_context *i915,
  37.                unsigned cpp,
  38.                unsigned rgba_mask,
  39.                unsigned short dst_pitch,
  40.                struct i915_winsys_buffer *dst_buffer,
  41.                unsigned dst_offset,
  42.                short x, short y,
  43.                short w, short h,
  44.                unsigned color)
  45. {
  46.    unsigned BR13, CMD;
  47.  
  48.  
  49.    I915_DBG(DBG_BLIT, "%s dst:buf(%p)/%d+%d %d,%d sz:%dx%d\n",
  50.             __FUNCTION__, dst_buffer, dst_pitch, dst_offset, x, y, w, h);
  51.  
  52.    if(!i915_winsys_validate_buffers(i915->batch, &dst_buffer, 1)) {
  53.       FLUSH_BATCH(NULL, I915_FLUSH_ASYNC);
  54.       assert(i915_winsys_validate_buffers(i915->batch, &dst_buffer, 1));
  55.    }
  56.  
  57.    switch (cpp) {
  58.    case 1:
  59.    case 2:
  60.    case 3:
  61.       BR13 = (((int) dst_pitch) & 0xffff) |
  62.          (0xF0 << 16) | (1 << 24);
  63.       CMD = XY_COLOR_BLT_CMD;
  64.       break;
  65.    case 4:
  66.       BR13 = (((int) dst_pitch) & 0xffff) |
  67.          (0xF0 << 16) | (1 << 24) | (1 << 25);
  68.       CMD = (XY_COLOR_BLT_CMD | rgba_mask);
  69.       break;
  70.    default:
  71.       return;
  72.    }
  73.  
  74.    if (!BEGIN_BATCH(6)) {
  75.       FLUSH_BATCH(NULL, I915_FLUSH_ASYNC);
  76.       assert(BEGIN_BATCH(6));
  77.    }
  78.    OUT_BATCH(CMD);
  79.    OUT_BATCH(BR13);
  80.    OUT_BATCH((y << 16) | x);
  81.    OUT_BATCH(((y + h) << 16) | (x + w));
  82.    OUT_RELOC_FENCED(dst_buffer, I915_USAGE_2D_TARGET, dst_offset);
  83.    OUT_BATCH(color);
  84.  
  85.    i915_set_flush_dirty(i915, I915_FLUSH_CACHE);
  86. }
  87.  
  88. void
  89. i915_copy_blit(struct i915_context *i915,
  90.                unsigned cpp,
  91.                unsigned short src_pitch,
  92.                struct i915_winsys_buffer *src_buffer,
  93.                unsigned src_offset,
  94.                unsigned short dst_pitch,
  95.                struct i915_winsys_buffer *dst_buffer,
  96.                unsigned dst_offset,
  97.                short src_x, short src_y,
  98.                short dst_x, short dst_y,
  99.                short w, short h)
  100. {
  101.    unsigned CMD, BR13;
  102.    int dst_y2 = dst_y + h;
  103.    int dst_x2 = dst_x + w;
  104.    struct i915_winsys_buffer *buffers[2] = {src_buffer, dst_buffer};
  105.  
  106.  
  107.    I915_DBG(DBG_BLIT,
  108.             "%s src:buf(%p)/%d+%d %d,%d dst:buf(%p)/%d+%d %d,%d sz:%dx%d\n",
  109.             __FUNCTION__,
  110.             src_buffer, src_pitch, src_offset, src_x, src_y,
  111.             dst_buffer, dst_pitch, dst_offset, dst_x, dst_y, w, h);
  112.  
  113.    if(!i915_winsys_validate_buffers(i915->batch, buffers, 2)) {
  114.       FLUSH_BATCH(NULL, I915_FLUSH_ASYNC);
  115.       assert(i915_winsys_validate_buffers(i915->batch, buffers, 2));
  116.    }
  117.  
  118.    switch (cpp) {
  119.    case 1:
  120.    case 2:
  121.    case 3:
  122.       BR13 = (((int) dst_pitch) & 0xffff) |
  123.          (0xCC << 16) | (1 << 24);
  124.       CMD = XY_SRC_COPY_BLT_CMD;
  125.       break;
  126.    case 4:
  127.       BR13 = (((int) dst_pitch) & 0xffff) |
  128.              (0xCC << 16) | (1 << 24) | (1 << 25);
  129.       CMD = (XY_SRC_COPY_BLT_CMD | XY_SRC_COPY_BLT_WRITE_ALPHA |
  130.             XY_SRC_COPY_BLT_WRITE_RGB);
  131.       break;
  132.    default:
  133.       return;
  134.    }
  135.  
  136.    if (dst_y2 < dst_y || dst_x2 < dst_x) {
  137.       return;
  138.    }
  139.  
  140.    /* Hardware can handle negative pitches but loses the ability to do
  141.     * proper overlapping blits in that case.  We don't really have a
  142.     * need for either at this stage.
  143.     */
  144.    assert (dst_pitch > 0 && src_pitch > 0);
  145.  
  146.    if (!BEGIN_BATCH(8)) {
  147.       FLUSH_BATCH(NULL, I915_FLUSH_ASYNC);
  148.       assert(BEGIN_BATCH(8));
  149.    }
  150.    OUT_BATCH(CMD);
  151.    OUT_BATCH(BR13);
  152.    OUT_BATCH((dst_y << 16) | dst_x);
  153.    OUT_BATCH((dst_y2 << 16) | dst_x2);
  154.    OUT_RELOC_FENCED(dst_buffer, I915_USAGE_2D_TARGET, dst_offset);
  155.    OUT_BATCH((src_y << 16) | src_x);
  156.    OUT_BATCH(((int) src_pitch & 0xffff));
  157.    OUT_RELOC_FENCED(src_buffer, I915_USAGE_2D_SOURCE, src_offset);
  158.  
  159.    i915_set_flush_dirty(i915, I915_FLUSH_CACHE);
  160. }
  161.