diff options
| author | Marek Olšák <[email protected]> | 2010-06-19 06:18:11 +0200 |
|---|---|---|
| committer | Marek Olšák <[email protected]> | 2010-06-19 06:18:17 +0200 |
| commit | ce4c9a7f25d57c6f2885c07743ef3d162584c997 (patch) | |
| tree | 17a92195e37d9615a547bb3086b21fef3c972107 | |
| parent | 6acd2117c1b5700077b2220623a06d89fa5c14a7 (diff) | |
r300g: fix clamp and mirror_clamp wrap modes when used with nearest filtering
| -rw-r--r-- | src/gallium/drivers/r300/r300_state.c | 30 |
1 files changed, 27 insertions, 3 deletions
diff --git a/src/gallium/drivers/r300/r300_state.c b/src/gallium/drivers/r300/r300_state.c index 9799f0c5223..488e23a9172 100644 --- a/src/gallium/drivers/r300/r300_state.c +++ b/src/gallium/drivers/r300/r300_state.c @@ -1013,10 +1013,34 @@ static void* sampler->state = *state; + /* r300 doesn't handle CLAMP and MIRROR_CLAMP correctly when either MAG + * or MIN filter is NEAREST. Since texwrap produces same results + * for CLAMP and CLAMP_TO_EDGE, we use them instead. */ + if (sampler->state.min_img_filter == PIPE_TEX_FILTER_NEAREST || + sampler->state.mag_img_filter == PIPE_TEX_FILTER_NEAREST) { + /* Wrap S. */ + if (sampler->state.wrap_s == PIPE_TEX_WRAP_CLAMP) + sampler->state.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + else if (sampler->state.wrap_s == PIPE_TEX_WRAP_MIRROR_CLAMP) + sampler->state.wrap_s = PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE; + + /* Wrap T. */ + if (sampler->state.wrap_t == PIPE_TEX_WRAP_CLAMP) + sampler->state.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + else if (sampler->state.wrap_t == PIPE_TEX_WRAP_MIRROR_CLAMP) + sampler->state.wrap_t = PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE; + + /* Wrap R. */ + if (sampler->state.wrap_r == PIPE_TEX_WRAP_CLAMP) + sampler->state.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + else if (sampler->state.wrap_r == PIPE_TEX_WRAP_MIRROR_CLAMP) + sampler->state.wrap_r = PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE; + } + sampler->filter0 |= - (r300_translate_wrap(state->wrap_s) << R300_TX_WRAP_S_SHIFT) | - (r300_translate_wrap(state->wrap_t) << R300_TX_WRAP_T_SHIFT) | - (r300_translate_wrap(state->wrap_r) << R300_TX_WRAP_R_SHIFT); + (r300_translate_wrap(sampler->state.wrap_s) << R300_TX_WRAP_S_SHIFT) | + (r300_translate_wrap(sampler->state.wrap_t) << R300_TX_WRAP_T_SHIFT) | + (r300_translate_wrap(sampler->state.wrap_r) << R300_TX_WRAP_R_SHIFT); sampler->filter0 |= r300_translate_tex_filters(state->min_img_filter, state->mag_img_filter, |