diff options
| author | Marek Olšák <[email protected]> | 2012-07-18 04:31:56 +0200 |
|---|---|---|
| committer | Marek Olšák <[email protected]> | 2012-07-18 04:35:38 +0200 |
| commit | 82a1d241754a52934b41bd152d25741b0c9c6294 (patch) | |
| tree | 5bd2aaba9c76c5021f370f8d37df6be36a6e7a11 | |
| parent | de4fd087cbccd47e703f750968b79525ddbe4554 (diff) | |
r600g: fix alphatest without a colorbuffer on r6xx-r7xx
| -rw-r--r-- | src/gallium/drivers/r600/r600_state.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/src/gallium/drivers/r600/r600_state.c b/src/gallium/drivers/r600/r600_state.c index 269198bf971..ab4a3cf574f 100644 --- a/src/gallium/drivers/r600/r600_state.c +++ b/src/gallium/drivers/r600/r600_state.c @@ -1595,7 +1595,7 @@ static void r600_set_framebuffer_state(struct pipe_context *ctx, { struct r600_context *rctx = (struct r600_context *)ctx; struct r600_pipe_state *rstate = CALLOC_STRUCT(r600_pipe_state); - uint32_t tl, br, shader_control; + uint32_t tl, br; if (rstate == NULL) return; @@ -1618,10 +1618,6 @@ static void r600_set_framebuffer_state(struct pipe_context *ctx, r600_db(rctx, rstate, state); } - shader_control = 0; - for (int i = 0; i < state->nr_cbufs; i++) { - shader_control |= 1 << i; - } tl = S_028240_TL_X(0) | S_028240_TL_Y(0) | S_028240_WINDOW_OFFSET_DISABLE(1); br = S_028244_BR_X(state->width) | S_028244_BR_Y(state->height); @@ -1630,8 +1626,16 @@ static void r600_set_framebuffer_state(struct pipe_context *ctx, r600_pipe_state_add_reg(rstate, R_028208_PA_SC_WINDOW_SCISSOR_BR, br); + /* Always enable the first colorbuffer in CB_SHADER_CONTROL. This + * will assure that the alpha-test will work even if there is + * no colorbuffer bound. */ r600_pipe_state_add_reg(rstate, R_0287A0_CB_SHADER_CONTROL, - shader_control); + (1ull << MAX2(state->nr_cbufs, 1)) - 1); + + if (state->nr_cbufs == 0 && rctx->alphatest_state.bypass) { + rctx->alphatest_state.bypass = false; + r600_atom_dirty(rctx, &rctx->alphatest_state.atom); + } free(rctx->states[R600_PIPE_STATE_FRAMEBUFFER]); rctx->states[R600_PIPE_STATE_FRAMEBUFFER] = rstate; |