diff options
Diffstat (limited to 'src/gallium/drivers/r300/r300_emit.c')
| -rw-r--r-- | src/gallium/drivers/r300/r300_emit.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/gallium/drivers/r300/r300_emit.c b/src/gallium/drivers/r300/r300_emit.c index 874037ed9fd..d214af4cd5b 100644 --- a/src/gallium/drivers/r300/r300_emit.c +++ b/src/gallium/drivers/r300/r300_emit.c @@ -439,6 +439,19 @@ void r300_emit_fb_state(struct r300_context* r300, unsigned size, void* state) OUT_CS_REG(R300_ZB_ZMASK_OFFSET, 0); OUT_CS_REG(R300_ZB_ZMASK_PITCH, surf->pitch_zmask); } + /* Set up a dummy zbuffer. Otherwise occlusion queries won't work. + * Use the first colorbuffer, we will disable writes in the DSA state + * so as not to corrupt it. */ + } else if (fb->nr_cbufs) { + surf = r300_surface(fb->cbufs[0]); + + OUT_CS_REG(R300_ZB_FORMAT, R300_DEPTHFORMAT_16BIT_INT_Z); + + OUT_CS_REG(R300_ZB_DEPTHOFFSET, 0); + OUT_CS_RELOC(surf); + + OUT_CS_REG(R300_ZB_DEPTHPITCH, 4 | R300_DEPTHMICROTILE_TILED_SQUARE); + OUT_CS_RELOC(surf); } END_CS; |