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fixed with-issues with scaled_filtered blit. Tested for 16bit space. Over here this new function is now stable. Other spaces will be tested asap.

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git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15615 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Rudolf Cornelissen 2005-12-20 15:59:22 +00:00
parent d608540b67
commit 04928d2c97
1 changed files with 12 additions and 6 deletions
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18
src/add-ons/accelerants/nvidia/engine/nv_acc_dma.c
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@ -1792,6 +1792,7 @@ void SCREEN_TO_SCREEN_BLIT_DMA(engine_token *et, blit_params *list, uint32 count
/* scaled and filtered screen to screen blit - i.e. video playback without overlay */
/* note: source and destination may not overlap. */
//fixme? checkout NV5 and NV10 version of cmd: faster?? (or is 0x77 a 'autoselect' version?)
//fixme: test 15-bit depth for correct space (conversion)...
void SCREEN_TO_SCREEN_SCALED_FILTERED_BLIT_DMA(engine_token *et, scaled_blit_params *list, uint32 count)
{
uint32 i = 0;
@ -1891,10 +1892,14 @@ void SCREEN_TO_SCREEN_SCALED_FILTERED_BLIT_DMA(engine_token *et, scaled_blit_par
(((list[i].src_height + 1) << 20) / (list[i].dest_height + 1)); /* VerInvScale (in 12.20 format) */
nv_acc_cmd_dma(NV_SCALED_IMAGE_FROM_MEMORY, NV_SCALED_IMAGE_FROM_MEMORY_SOURCESIZE, 4);
/* setup source size including needed slopspace */
//fixme: checkout constraints and update code...
/* setup horizontal and vertical source (fetching) ends.
* note:
* horizontal granularity is 2 pixels, vertical granularity is 1 pixel.
* look at Matrox or Neomagic bes engines code for usage example. */
//fixme: tested 16-bit depth, verify other depths...
((uint32*)(si->dma_buffer))[si->engine.dma.current++] =
(((list[i].src_height + 1) << 16) | (list[i].src_width + 1)); /* SourceHeightWidth */
(((list[i].src_height + 1 + 1) << 16) |
(((list[i].src_width + 1) + 0x0001) & ~0x0001)); /* SourceHeightWidth */
/* setup source pitch (b0-15). Set 'format origin center' (b16-17) and
* select 'format interpolator foh (bilinear filtering)' (b24). */
((uint32*)(si->dma_buffer))[si->engine.dma.current++] =
@ -1903,9 +1908,10 @@ void SCREEN_TO_SCREEN_SCALED_FILTERED_BLIT_DMA(engine_token *et, scaled_blit_par
((uint32*)(si->dma_buffer))[si->engine.dma.current++] =
((uint32)((uint8*)si->fbc.frame_buffer - (uint8*)si->framebuffer)) +
(list[i].src_top * si->fbc.bytes_per_row) + (list[i].src_left * bpp); /* Offset */
/* Setup source start: first (sub)pixel contributing to output picture */
/* Note:
* clipping is not asked for. Look at bes engine code for useage example. */
/* setup source start: first (sub)pixel contributing to output picture */
/* note:
* clipping is not asked for.
* look at nVidia NV10+ bes engine code for useage example. */
((uint32*)(si->dma_buffer))[si->engine.dma.current++] =
0; /* SourceRef (b0-15 = hor, b16-31 = ver: both in 12.4 format) */