i915_blit.c File Reference

Include dependency graph for i915_blit.c:

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Defines
#define	FILE_DEBUG_FLAG   DEBUG_BLIT
Functions
void	i915_fill_blit (struct i915_context *i915, unsigned cpp, short dst_pitch, struct pipe_buffer *dst_buffer, unsigned dst_offset, short x, short y, short w, short h, unsigned color)
void	i915_copy_blit (struct i915_context *i915, unsigned do_flip, unsigned cpp, short src_pitch, struct pipe_buffer *src_buffer, unsigned src_offset, short dst_pitch, struct pipe_buffer *dst_buffer, unsigned dst_offset, short src_x, short src_y, short dst_x, short dst_y, short w, short h)

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Define Documentation

#define FILE_DEBUG_FLAG   DEBUG_BLIT

Definition at line 36 of file i915_blit.c.

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Function Documentation

void i915_copy_blit	(	struct i915_context *	i915,
		unsigned	do_flip,
		unsigned	cpp,
		short	src_pitch,
		struct pipe_buffer *	src_buffer,
		unsigned	src_offset,
		short	dst_pitch,
		struct pipe_buffer *	dst_buffer,
		unsigned	dst_offset,
		short	src_x,
		short	src_y,
		short	dst_x,
		short	dst_y,
		short	w,
		short	h
	)

Definition at line 84 of file i915_blit.c.

References assert, BEGIN_BATCH, BR13(), FLUSH_BATCH, I915_BUFFER_ACCESS_READ, I915_BUFFER_ACCESS_WRITE, I915_DBG(), OUT_BATCH, OUT_RELOC, XY_SRC_COPY_BLT_CMD, XY_SRC_COPY_BLT_WRITE_ALPHA, and XY_SRC_COPY_BLT_WRITE_RGB.

{
   unsigned CMD, BR13;
   int dst_y2 = dst_y + h;
   int dst_x2 = dst_x + w;


   I915_DBG(i915,
       "%s src:buf(%p)/%d+%d %d,%d dst:buf(%p)/%d+%d %d,%d sz:%dx%d\n",
       __FUNCTION__,
       src_buffer, src_pitch, src_offset, src_x, src_y,
       dst_buffer, dst_pitch, dst_offset, dst_x, dst_y, w, h);

   src_pitch *= (short) cpp;
   dst_pitch *= (short) cpp;

   switch (cpp) {
   case 1:
   case 2:
   case 3:
      BR13 = (((int) dst_pitch) & 0xffff) | 
         (0xCC << 16) | (1 << 24);
      CMD = XY_SRC_COPY_BLT_CMD;
      break;
   case 4:
      BR13 =
         (((int) dst_pitch) & 0xffff) | 
         (0xCC << 16) | (1 << 24) | (1 << 25);
      CMD =
         (XY_SRC_COPY_BLT_CMD | XY_SRC_COPY_BLT_WRITE_ALPHA |
          XY_SRC_COPY_BLT_WRITE_RGB);
      break;
   default:
      return;
   }

   if (dst_y2 < dst_y || 
       dst_x2 < dst_x) {
      return;
   }

   /* Hardware can handle negative pitches but loses the ability to do
    * proper overlapping blits in that case.  We don't really have a
    * need for either at this stage.
    */
   assert (dst_pitch > 0 && src_pitch > 0);


   if (!BEGIN_BATCH(8, 2)) {
      FLUSH_BATCH(NULL);
      assert(BEGIN_BATCH(8, 2));
   }
   OUT_BATCH(CMD);
   OUT_BATCH(BR13);
   OUT_BATCH((dst_y << 16) | dst_x);
   OUT_BATCH((dst_y2 << 16) | dst_x2);
   OUT_RELOC(dst_buffer, I915_BUFFER_ACCESS_WRITE, dst_offset);
   OUT_BATCH((src_y << 16) | src_x);
   OUT_BATCH(((int) src_pitch & 0xffff));
   OUT_RELOC(src_buffer, I915_BUFFER_ACCESS_READ, src_offset);
}

void i915_fill_blit	(	struct i915_context *	i915,
		unsigned	cpp,
		short	dst_pitch,
		struct pipe_buffer *	dst_buffer,
		unsigned	dst_offset,
		short	x,
		short	y,
		short	w,
		short	h,
		unsigned	color
	)

Definition at line 39 of file i915_blit.c.

References assert, BEGIN_BATCH, BR13(), FLUSH_BATCH, I915_BUFFER_ACCESS_WRITE, OUT_BATCH, OUT_RELOC, XY_COLOR_BLT_CMD, XY_COLOR_BLT_WRITE_ALPHA, and XY_COLOR_BLT_WRITE_RGB.

{
   unsigned BR13, CMD;

   switch (cpp) {
   case 1:
   case 2:
   case 3:
      BR13 = dst_pitch | (0xF0 << 16) | (1 << 24);
      CMD = XY_COLOR_BLT_CMD;
      break;
   case 4:
      BR13 = dst_pitch | (0xF0 << 16) | (1 << 24) | (1 << 25);
      CMD = (XY_COLOR_BLT_CMD | XY_COLOR_BLT_WRITE_ALPHA |
             XY_COLOR_BLT_WRITE_RGB);
      break;
   default:
      return;
   }

//   DBG("%s dst:buf(%p)/%d+%d %d,%d sz:%dx%d\n",
//       __FUNCTION__, dst_buffer, dst_pitch, dst_offset, x, y, w, h);


   if (!BEGIN_BATCH(6, 1)) {
      FLUSH_BATCH(NULL);
      assert(BEGIN_BATCH(6, 1));
   }
   OUT_BATCH(CMD);
   OUT_BATCH(BR13);
   OUT_BATCH((y << 16) | x);
   OUT_BATCH(((y + h) << 16) | (x + w));
   OUT_RELOC( dst_buffer, I915_BUFFER_ACCESS_WRITE, dst_offset);
   OUT_BATCH(color);
}

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