diff options
Diffstat (limited to 'src/gallium/drivers/r300/r300_emit.c')
| -rw-r--r-- | src/gallium/drivers/r300/r300_emit.c | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/src/gallium/drivers/r300/r300_emit.c b/src/gallium/drivers/r300/r300_emit.c index 51c14b43e41..1b9de40afaa 100644 --- a/src/gallium/drivers/r300/r300_emit.c +++ b/src/gallium/drivers/r300/r300_emit.c @@ -79,19 +79,22 @@ void r300_emit_dsa_state(struct r300_context* r300, unsigned size, void* state) struct r300_dsa_state* dsa = (struct r300_dsa_state*)state; struct pipe_framebuffer_state* fb = (struct pipe_framebuffer_state*)r300->fb_state.state; + boolean is_r500 = r300->screen->caps.is_r500; CS_LOCALS(r300); + uint32_t alpha_func = dsa->alpha_function; - if (fb->zsbuf) { - if (fb->nr_cbufs && fb->cbufs[0]->format == PIPE_FORMAT_R16G16B16A16_FLOAT) - WRITE_CS_TABLE(&dsa->cb_begin_fp16, size); - else - WRITE_CS_TABLE(&dsa->cb_begin, size); - } else { - if (fb->nr_cbufs && fb->cbufs[0]->format == PIPE_FORMAT_R16G16B16A16_FLOAT) - WRITE_CS_TABLE(dsa->cb_fp16_zb_no_readwrite, size); - else - WRITE_CS_TABLE(dsa->cb_zb_no_readwrite, size); + /* Choose the alpha ref value between 8-bit (FG_ALPHA_FUNC.AM_VAL) and + * 16-bit (FG_ALPHA_VALUE). */ + if (is_r500 && (alpha_func & R300_FG_ALPHA_FUNC_ENABLE)) { + if (fb->nr_cbufs && fb->cbufs[0]->format == PIPE_FORMAT_R16G16B16A16_FLOAT) { + alpha_func |= R500_FG_ALPHA_FUNC_FP16_ENABLE; + } else { + alpha_func |= R500_FG_ALPHA_FUNC_8BIT; + } } + + OUT_CS_REG(R300_FG_ALPHA_FUNC, alpha_func); + WRITE_CS_TABLE(fb->zsbuf ? &dsa->cb_begin : dsa->cb_zb_no_readwrite, size-2); } static void get_rc_constant_state( |