diff options
Diffstat (limited to 'src/gallium/drivers/r300/r300_state.c')
| -rw-r--r-- | src/gallium/drivers/r300/r300_state.c | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/src/gallium/drivers/r300/r300_state.c b/src/gallium/drivers/r300/r300_state.c index 5d28837ef7..5db8c69dec 100644 --- a/src/gallium/drivers/r300/r300_state.c +++ b/src/gallium/drivers/r300/r300_state.c @@ -198,6 +198,8 @@ static void* r300_create_dsa_state(struct pipe_context* pipe, const struct pipe_depth_stencil_alpha_state* state) { + struct r300_capabilities *caps = + r300_screen(r300_context(pipe)->context.screen)->caps; struct r300_dsa_state* dsa = CALLOC_STRUCT(r300_dsa_state); /* Depth test setup. */ @@ -242,9 +244,16 @@ static void* (r300_translate_stencil_op(state->stencil[1].zfail_op) << R300_S_BACK_ZFAIL_OP_SHIFT); - dsa->stencil_ref_bf = (state->stencil[1].ref_value) | - (state->stencil[1].valuemask << R300_STENCILMASK_SHIFT) | - (state->stencil[1].writemask << R300_STENCILWRITEMASK_SHIFT); + /* XXX it seems r3xx doesn't support STENCILREFMASK_BF */ + if (caps->is_r500) + { + dsa->z_buffer_control |= R500_STENCIL_REFMASK_FRONT_BACK; + dsa->stencil_ref_bf = (state->stencil[1].ref_value) | + (state->stencil[1].valuemask << + R300_STENCILMASK_SHIFT) | + (state->stencil[1].writemask << + R300_STENCILWRITEMASK_SHIFT); + } } } @@ -253,8 +262,13 @@ static void* dsa->alpha_function = r300_translate_alpha_function(state->alpha.func) | R300_FG_ALPHA_FUNC_ENABLE; - dsa->alpha_reference = CLAMP(state->alpha.ref_value * 1023.0f, - 0, 1023); + + /* XXX figure out why emitting 10bit alpha ref causes CS to dump */ + /* always use 8bit alpha ref */ + dsa->alpha_function |= float_to_ubyte(state->alpha.ref_value); + + if (caps->is_r500) + dsa->alpha_function |= R500_FG_ALPHA_FUNC_8BIT; } return (void*)dsa; |