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cell: fix npot texture tiling bugs

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This commit is contained in:
Brian Paul 2008-10-14 14:02:07 -06:00
parent 4f56d5bbf2
commit 38d396e15a
1 changed files with 12 additions and 4 deletions
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16
src/gallium/drivers/cell/ppu/cell_texture.c
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@ -172,9 +172,17 @@ twiddle_image_uint(uint w, uint h, uint tile_size, uint *dst,
for (jt = 0; jt < w_t; jt++) {
/* start of dest tile: */
uint *tdst = dst + (it * w_t + jt) * tile_size2;
/* compute size of this tile (may be smaller than tile_size) */
/* XXX note: a compiler bug was found here. That's why the code
* looks as it does.
*/
uint tile_width = w - jt * tile_size;
tile_width = MIN2(tile_width, tile_size);
uint tile_height = h - it * tile_size;
tile_height = MIN2(tile_height, tile_size);
/* loop over texels in the tile */
uint tile_width = MIN2(tile_size, w);
uint tile_height = MIN2(tile_size, h);
for (i = 0; i < tile_height; i++) {
for (j = 0; j < tile_width; j++) {
const uint srci = it * tile_size + i;
@ -200,8 +208,8 @@ cell_twiddle_texture(struct pipe_screen *screen,
const uint level = surface->level;
const uint texWidth = texture->base.width[level];
const uint texHeight = texture->base.height[level];
const uint bufWidth = MAX2(texWidth, TILE_SIZE);
const uint bufHeight = MAX2(texHeight, TILE_SIZE);
const uint bufWidth = align(texWidth, TILE_SIZE);
const uint bufHeight = align(texHeight, TILE_SIZE);
const void *map = pipe_buffer_map(screen, surface->buffer,
PIPE_BUFFER_USAGE_CPU_READ);
const uint *src = (const uint *) ((const ubyte *) map + surface->offset);