brw_blit.h File Reference

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Functions
void	brw_fill_blit (struct brw_context *intel, unsigned cpp, short dst_pitch, struct pipe_buffer *dst_buffer, unsigned dst_offset, boolean dst_tiled, short x, short y, short w, short h, unsigned color)
void	brw_copy_blit (struct brw_context *intel, unsigned do_flip, unsigned cpp, short src_pitch, struct pipe_buffer *src_buffer, unsigned src_offset, boolean src_tiled, short dst_pitch, struct pipe_buffer *dst_buffer, unsigned dst_offset, boolean dst_tiled, short src_x, short src_y, short dst_x, short dst_y, short w, short h, unsigned logic_op)

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Function Documentation

void brw_copy_blit	(	struct brw_context *	intel,
		unsigned	do_flip,
		unsigned	cpp,
		short	src_pitch,
		struct pipe_buffer *	src_buffer,
		unsigned	src_offset,
		boolean	src_tiled,
		short	dst_pitch,
		struct pipe_buffer *	dst_buffer,
		unsigned	dst_offset,
		boolean	dst_tiled,
		short	src_x,
		short	src_y,
		short	dst_x,
		short	dst_y,
		short	w,
		short	h,
		unsigned	logic_op
	)

Definition at line 113 of file brw_blit.c.

References ADVANCE_BATCH, assert, BATCH_LOCALS, BEGIN_BATCH, BR13(), BRW_BUFFER_ACCESS_READ, BRW_BUFFER_ACCESS_WRITE, DBG, INTEL_BATCH_NO_CLIPRECTS, OUT_BATCH, OUT_RELOC, PIPE_LOGICOP_CLEAR, translate_raster_op(), XY_BLT_WRITE_ALPHA, XY_BLT_WRITE_RGB, XY_DST_TILED, XY_SRC_COPY_BLT_CMD, and XY_SRC_TILED.

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


   DBG("%s src:buf(%d)/%d %d,%d dst:buf(%d)/%d %d,%d sz:%dx%d op:%d\n",
       __FUNCTION__,
       src_buffer, src_pitch, src_x, src_y,
       dst_buffer, dst_pitch, dst_x, dst_y,
       w,h,logic_op);

   assert( logic_op - PIPE_LOGICOP_CLEAR >= 0 );
   assert( logic_op - PIPE_LOGICOP_CLEAR < 0x10 );

   src_pitch *= cpp;
   dst_pitch *= cpp;

   switch(cpp) {
   case 1:
   case 2:
   case 3:
      BR13 = (translate_raster_op(logic_op) << 16) | (1<<24);
      CMD = XY_SRC_COPY_BLT_CMD;
      break;
   case 4:
      BR13 = (translate_raster_op(logic_op) << 16) | (1<<24) |
          (1<<25);
      CMD = XY_SRC_COPY_BLT_CMD | XY_BLT_WRITE_ALPHA | XY_BLT_WRITE_RGB;
      break;
   default:
      return;
   }

   if (src_tiled) {
      CMD |= XY_SRC_TILED;
      src_pitch /= 4;
   }

   if (dst_tiled) {
      CMD |= XY_DST_TILED;
      dst_pitch /= 4;
   }

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

   dst_pitch &= 0xffff;
   src_pitch &= 0xffff;

   /* Initial y values don't seem to work with negative pitches.  If
    * we adjust the offsets manually (below), it seems to work fine.
    *
    * On the other hand, if we always adjust, the hardware doesn't
    * know which blit directions to use, so overlapping copypixels get
    * the wrong result.
    */
   if (dst_pitch > 0 && src_pitch > 0) {
      BEGIN_BATCH(8, INTEL_BATCH_NO_CLIPRECTS);
      OUT_BATCH( CMD );
      OUT_BATCH( dst_pitch | BR13 );
      OUT_BATCH( (dst_y << 16) | dst_x );
      OUT_BATCH( (dst_y2 << 16) | dst_x2 );
      OUT_RELOC( dst_buffer, BRW_BUFFER_ACCESS_WRITE,
                 dst_offset );
      OUT_BATCH( (src_y << 16) | src_x );
      OUT_BATCH( src_pitch );
      OUT_RELOC( src_buffer, BRW_BUFFER_ACCESS_READ,
                 src_offset );
      ADVANCE_BATCH();
   }
   else {
      BEGIN_BATCH(8, INTEL_BATCH_NO_CLIPRECTS);
      OUT_BATCH( CMD );
      OUT_BATCH( (dst_pitch & 0xffff) | BR13 );
      OUT_BATCH( (0 << 16) | dst_x );
      OUT_BATCH( (h << 16) | dst_x2 );
      OUT_RELOC( dst_buffer, BRW_BUFFER_ACCESS_WRITE,
                 dst_offset + dst_y * dst_pitch );
      OUT_BATCH( (src_pitch & 0xffff) );
      OUT_RELOC( src_buffer, BRW_BUFFER_ACCESS_READ,
                 src_offset + src_y * src_pitch );
      ADVANCE_BATCH();
   }
}

void brw_fill_blit	(	struct brw_context *	intel,
		unsigned	cpp,
		short	dst_pitch,
		struct pipe_buffer *	dst_buffer,
		unsigned	dst_offset,
		boolean	dst_tiled,
		short	x,
		short	y,
		short	w,
		short	h,
		unsigned	color
	)

Definition at line 42 of file brw_blit.c.

References ADVANCE_BATCH, BATCH_LOCALS, BEGIN_BATCH, BR13(), BRW_BUFFER_ACCESS_WRITE, INTEL_BATCH_NO_CLIPRECTS, OUT_BATCH, OUT_RELOC, XY_BLT_WRITE_ALPHA, XY_BLT_WRITE_RGB, XY_COLOR_BLT_CMD, and XY_DST_TILED.

{
   unsigned BR13, CMD;
   BATCH_LOCALS;

   dst_pitch *= cpp;

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

   if (dst_tiled) {
      CMD |= XY_DST_TILED;
      dst_pitch /= 4;
   }

   BEGIN_BATCH(6, INTEL_BATCH_NO_CLIPRECTS);
   OUT_BATCH( CMD );
   OUT_BATCH( dst_pitch | BR13 );
   OUT_BATCH( (y << 16) | x );
   OUT_BATCH( ((y+h) << 16) | (x+w) );
   OUT_RELOC( dst_buffer, BRW_BUFFER_ACCESS_WRITE, dst_offset );
   OUT_BATCH( color );
   ADVANCE_BATCH();
}

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