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5564 serge 1 
/**************************************************************************
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 *
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 * Copyright 2003 VMware, Inc.
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 * All Rights Reserved.
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining a
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 * copy of this software and associated documentation files (the
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 * "Software"), to deal in the Software without restriction, including
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 * without limitation the rights to use, copy, modify, merge, publish,
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 * distribute, sub license, and/or sell copies of the Software, and to
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 * permit persons to whom the Software is furnished to do so, subject to
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 * the following conditions:
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 *
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 * The above copyright notice and this permission notice (including the
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 * next paragraph) shall be included in all copies or substantial portions
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 * of the Software.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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 *
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 **************************************************************************/
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#include "i915_blit.h"
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#include "i915_reg.h"
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#include "i915_batch.h"
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#include "i915_debug.h"
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void
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i915_fill_blit(struct i915_context *i915,
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               unsigned cpp,
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               unsigned rgba_mask,
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               unsigned short dst_pitch,
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               struct i915_winsys_buffer *dst_buffer,
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               unsigned dst_offset,
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               short x, short y,
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               short w, short h,
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               unsigned color)
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{
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   unsigned BR13, CMD;
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   I915_DBG(DBG_BLIT, "%s dst:buf(%p)/%d+%d %d,%d sz:%dx%d\n",
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            __FUNCTION__, dst_buffer, dst_pitch, dst_offset, x, y, w, h);
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   if(!i915_winsys_validate_buffers(i915->batch, &dst_buffer, 1)) {
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      FLUSH_BATCH(NULL, I915_FLUSH_ASYNC);
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      assert(i915_winsys_validate_buffers(i915->batch, &dst_buffer, 1));
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   }
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   switch (cpp) {
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   case 1:
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   case 2:
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   case 3:
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      BR13 = (((int) dst_pitch) & 0xffff) |
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         (0xF0 << 16) | (1 << 24);
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      CMD = XY_COLOR_BLT_CMD;
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      break;
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   case 4:
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      BR13 = (((int) dst_pitch) & 0xffff) |
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         (0xF0 << 16) | (1 << 24) | (1 << 25);
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      CMD = (XY_COLOR_BLT_CMD | rgba_mask);
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      break;
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   default:
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      return;
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   }
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   if (!BEGIN_BATCH(6)) {
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      FLUSH_BATCH(NULL, I915_FLUSH_ASYNC);
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      assert(BEGIN_BATCH(6));
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   }
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   OUT_BATCH(CMD);
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   OUT_BATCH(BR13);
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   OUT_BATCH((y << 16) | x);
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   OUT_BATCH(((y + h) << 16) | (x + w));
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   OUT_RELOC_FENCED(dst_buffer, I915_USAGE_2D_TARGET, dst_offset);
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   OUT_BATCH(color);
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   i915_set_flush_dirty(i915, I915_FLUSH_CACHE);
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}
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void
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i915_copy_blit(struct i915_context *i915,
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               unsigned cpp,
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               unsigned short src_pitch,
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               struct i915_winsys_buffer *src_buffer,
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               unsigned src_offset,
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               unsigned short dst_pitch,
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               struct i915_winsys_buffer *dst_buffer,
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               unsigned dst_offset,
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               short src_x, short src_y,
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               short dst_x, short dst_y,
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               short w, short h)
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{
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   unsigned CMD, BR13;
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   int dst_y2 = dst_y + h;
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   int dst_x2 = dst_x + w;
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   struct i915_winsys_buffer *buffers[2] = {src_buffer, dst_buffer};
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   I915_DBG(DBG_BLIT,
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            "%s src:buf(%p)/%d+%d %d,%d dst:buf(%p)/%d+%d %d,%d sz:%dx%d\n",
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            __FUNCTION__,
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            src_buffer, src_pitch, src_offset, src_x, src_y,
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            dst_buffer, dst_pitch, dst_offset, dst_x, dst_y, w, h);
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   if(!i915_winsys_validate_buffers(i915->batch, buffers, 2)) {
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      FLUSH_BATCH(NULL, I915_FLUSH_ASYNC);
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      assert(i915_winsys_validate_buffers(i915->batch, buffers, 2));
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   }
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   switch (cpp) {
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   case 1:
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   case 2:
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   case 3:
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      BR13 = (((int) dst_pitch) & 0xffff) |
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         (0xCC << 16) | (1 << 24);
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      CMD = XY_SRC_COPY_BLT_CMD;
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      break;
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   case 4:
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      BR13 = (((int) dst_pitch) & 0xffff) |
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             (0xCC << 16) | (1 << 24) | (1 << 25);
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      CMD = (XY_SRC_COPY_BLT_CMD | XY_SRC_COPY_BLT_WRITE_ALPHA |
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            XY_SRC_COPY_BLT_WRITE_RGB);
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      break;
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   default:
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      return;
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   }
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   if (dst_y2 < dst_y || dst_x2 < dst_x) {
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      return;
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   }
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   /* Hardware can handle negative pitches but loses the ability to do
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    * proper overlapping blits in that case.  We don't really have a
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    * need for either at this stage.
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    */
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   assert (dst_pitch > 0 && src_pitch > 0);
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   if (!BEGIN_BATCH(8)) {
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      FLUSH_BATCH(NULL, I915_FLUSH_ASYNC);
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      assert(BEGIN_BATCH(8));
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   }
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   OUT_BATCH(CMD);
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   OUT_BATCH(BR13);
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   OUT_BATCH((dst_y << 16) | dst_x);
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   OUT_BATCH((dst_y2 << 16) | dst_x2);
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   OUT_RELOC_FENCED(dst_buffer, I915_USAGE_2D_TARGET, dst_offset);
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   OUT_BATCH((src_y << 16) | src_x);
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   OUT_BATCH(((int) src_pitch & 0xffff));
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   OUT_RELOC_FENCED(src_buffer, I915_USAGE_2D_SOURCE, src_offset);
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   i915_set_flush_dirty(i915, I915_FLUSH_CACHE);
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}