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Member "mesa-20.1.8/src/gallium/drivers/i915/i915_blit.c" (16 Sep 2020, 5088 Bytes) of package /linux/misc/mesa-20.1.8.tar.xz:


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    1 /**************************************************************************
    2  * 
    3  * Copyright 2003 VMware, Inc.
    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 VMWARE 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 }