diff options
| author | Marek Olšák <[email protected]> | 2009-12-14 05:29:12 +0100 |
|---|---|---|
| committer | Corbin Simpson <[email protected]> | 2009-12-15 19:04:46 -0800 |
| commit | a6d701d1c6ed8e0a649d62104aeded8fb25c66d8 (patch) | |
| tree | 201af697b933ade27d4ee4a91f6712a55eb69c9f | |
| parent | cf85bf9cd0c168caed6210a896df285c3d86db03 (diff) | |
r300g: if no colorbuffers are set, disable blending and set the color mask to 0
This seems to be the only way to disable the first colorbuffer.
| -rw-r--r-- | src/gallium/drivers/r300/r300_emit.c | 13 | ||||
| -rw-r--r-- | src/gallium/drivers/r300/r300_state.c | 1 |
2 files changed, 11 insertions, 3 deletions
diff --git a/src/gallium/drivers/r300/r300_emit.c b/src/gallium/drivers/r300/r300_emit.c index 9644efb7174..55e4f94afe2 100644 --- a/src/gallium/drivers/r300/r300_emit.c +++ b/src/gallium/drivers/r300/r300_emit.c @@ -41,9 +41,16 @@ void r300_emit_blend_state(struct r300_context* r300, CS_LOCALS(r300); BEGIN_CS(8); OUT_CS_REG_SEQ(R300_RB3D_CBLEND, 3); - OUT_CS(blend->blend_control); - OUT_CS(blend->alpha_blend_control); - OUT_CS(blend->color_channel_mask); + if (r300->framebuffer_state.nr_cbufs) { + OUT_CS(blend->blend_control); + OUT_CS(blend->alpha_blend_control); + OUT_CS(blend->color_channel_mask); + } else { + OUT_CS(0); + OUT_CS(0); + OUT_CS(0); + /* XXX also disable fastfill here once it's supported */ + } OUT_CS_REG(R300_RB3D_ROPCNTL, blend->rop); OUT_CS_REG(R300_RB3D_DITHER_CTL, blend->dither); END_CS; diff --git a/src/gallium/drivers/r300/r300_state.c b/src/gallium/drivers/r300/r300_state.c index 3cfa2e63f90..91cf972edee 100644 --- a/src/gallium/drivers/r300/r300_state.c +++ b/src/gallium/drivers/r300/r300_state.c @@ -339,6 +339,7 @@ static void r300->dirty_state |= R300_NEW_SCISSOR; } r300->dirty_state |= R300_NEW_FRAMEBUFFERS; + r300->dirty_state |= R300_NEW_BLEND; } /* Create fragment shader state. */ |