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Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_misc_state.c')
-rw-r--r--src/mesa/drivers/dri/i965/brw_misc_state.c71
1 files changed, 41 insertions, 30 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_misc_state.c b/src/mesa/drivers/dri/i965/brw_misc_state.c
index 6dc6c07ac11..3143c826d63 100644
--- a/src/mesa/drivers/dri/i965/brw_misc_state.c
+++ b/src/mesa/drivers/dri/i965/brw_misc_state.c
@@ -233,37 +233,48 @@ static void upload_depthbuffer(struct brw_context *brw)
struct intel_context *intel = &brw->intel;
struct intel_region *region = brw->state.depth_region;
- unsigned int format;
-
- switch (region->cpp) {
- case 2:
- format = BRW_DEPTHFORMAT_D16_UNORM;
- break;
- case 4:
- if (intel->depth_buffer_is_float)
- format = BRW_DEPTHFORMAT_D32_FLOAT;
- else
- format = BRW_DEPTHFORMAT_D24_UNORM_S8_UINT;
- break;
- default:
- assert(0);
- return;
+ if (region == NULL) {
+ BEGIN_BATCH(5, INTEL_BATCH_NO_CLIPRECTS);
+ OUT_BATCH(CMD_DEPTH_BUFFER << 16 | (5 - 2));
+ OUT_BATCH((BRW_DEPTHFORMAT_D32_FLOAT << 18) |
+ (BRW_SURFACE_NULL << 29));
+ OUT_BATCH(0);
+ OUT_BATCH(0);
+ OUT_BATCH(0);
+ ADVANCE_BATCH();
+ } else {
+ unsigned int format;
+
+ switch (region->cpp) {
+ case 2:
+ format = BRW_DEPTHFORMAT_D16_UNORM;
+ break;
+ case 4:
+ if (intel->depth_buffer_is_float)
+ format = BRW_DEPTHFORMAT_D32_FLOAT;
+ else
+ format = BRW_DEPTHFORMAT_D24_UNORM_S8_UINT;
+ break;
+ default:
+ assert(0);
+ return;
+ }
+
+ BEGIN_BATCH(5, INTEL_BATCH_NO_CLIPRECTS);
+ OUT_BATCH(CMD_DEPTH_BUFFER << 16 | (5 - 2));
+ OUT_BATCH(((region->pitch * region->cpp) - 1) |
+ (format << 18) |
+ (BRW_TILEWALK_YMAJOR << 26) |
+ (region->tiled << 27) |
+ (BRW_SURFACE_2D << 29));
+ OUT_RELOC(region->buffer,
+ DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE, 0);
+ OUT_BATCH((BRW_SURFACE_MIPMAPLAYOUT_BELOW << 1) |
+ ((region->pitch - 1) << 6) |
+ ((region->height - 1) << 19));
+ OUT_BATCH(0);
+ ADVANCE_BATCH();
}
-
- BEGIN_BATCH(5, INTEL_BATCH_NO_CLIPRECTS);
- OUT_BATCH(CMD_DEPTH_BUFFER << 16 | (5 - 2));
- OUT_BATCH(((region->pitch * region->cpp) - 1) |
- (format << 18) |
- (BRW_TILEWALK_YMAJOR << 26) |
- (region->tiled << 27) |
- (BRW_SURFACE_2D << 29));
- OUT_RELOC(region->buffer,
- DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE, 0);
- OUT_BATCH((BRW_SURFACE_MIPMAPLAYOUT_BELOW << 1) |
- ((region->pitch - 1) << 6) |
- ((region->height - 1) << 19));
- OUT_BATCH(0);
- ADVANCE_BATCH();
}
const struct brw_tracked_state brw_depthbuffer = {