struct r300_sampler_state *sampler;
struct r300_sampler_view *view;
struct r300_texture *tex;
- unsigned min_level, max_level, i, size;
+ unsigned min_level, max_level, i, j, size;
unsigned count = MIN2(state->sampler_view_count,
state->sampler_state_count);
- unsigned char depth_swizzle[4] = {
- UTIL_FORMAT_SWIZZLE_X,
- UTIL_FORMAT_SWIZZLE_X,
- UTIL_FORMAT_SWIZZLE_X,
- UTIL_FORMAT_SWIZZLE_X
- };
/* The KIL opcode fix, see below. */
if (!count && !r300->screen->caps.is_r500)
/* Assign a texture cache region. */
texstate->format.format1 |= view->texcache_region;
- /* If compare mode is disabled, the sampler view swizzles
- * are stored in the format.
- * Otherwise, swizzles must be applied after the compare mode
- * in the fragment shader. */
+ /* Depth textures are kinda special. */
if (util_format_is_depth_or_stencil(tex->desc.b.b.format)) {
+ unsigned char depth_swizzle[4];
+
+ if (!r300->screen->caps.is_r500 &&
+ util_format_get_blocksizebits(tex->desc.b.b.format) == 32) {
+ /* X24x8 is sampled as Y16X16 on r3xx-r4xx.
+ * The depth here is at the Y component. */
+ for (j = 0; j < 4; j++)
+ depth_swizzle[j] = UTIL_FORMAT_SWIZZLE_Y;
+ } else {
+ for (j = 0; j < 4; j++)
+ depth_swizzle[j] = UTIL_FORMAT_SWIZZLE_X;
+ }
+
+ /* If compare mode is disabled, sampler view swizzles
+ * are stored in the format.
+ * Otherwise, the swizzles must be applied after the compare
+ * mode in the fragment shader. */
if (sampler->state.compare_mode == PIPE_TEX_COMPARE_NONE) {
texstate->format.format1 |=
- r300_get_swizzle_combined(depth_swizzle, view->swizzle);
+ r300_get_swizzle_combined(depth_swizzle,
+ view->swizzle);
} else {
texstate->format.format1 |=
r300_get_swizzle_combined(depth_swizzle, 0);