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r300g: use clamp-to-edge instead of repeat/mirrored-repeat for NPOT textures

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This commit is contained in:
Marek Olšák
2010-04-10 19:00:10 +02:00
parent 287c94ea49
commit cd499e7612
1 changed files with 19 additions and 0 deletions
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19
src/gallium/drivers/r300/r300_state_derived.c
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@@ -493,6 +493,25 @@ static void r300_merge_textures_and_samplers(struct r300_context* r300)
/* NPOT textures don't support mip filter, unfortunately.
* This prevents incorrect rendering. */
texstate->filter[0] &= ~R300_TX_MIN_FILTER_MIP_MASK;
/* Set repeat or mirrored-repeat to clamp-to-edge. */
/* Wrap S. */
if ((texstate->filter[0] & R300_TX_WRAP_S_MASK) ==
R300_TX_WRAP_S(R300_TX_REPEAT) ||
(texstate->filter[0] & R300_TX_WRAP_S_MASK) ==
R300_TX_WRAP_S(R300_TX_MIRRORED)) {
texstate->filter[0] &= ~R300_TX_WRAP_S_MASK;
texstate->filter[0] |= R300_TX_WRAP_S(R300_TX_CLAMP_TO_EDGE);
}
/* Wrap T. */
if ((texstate->filter[0] & R300_TX_WRAP_T_MASK) ==
R300_TX_WRAP_T(R300_TX_REPEAT) ||
(texstate->filter[0] & R300_TX_WRAP_T_MASK) ==
R300_TX_WRAP_T(R300_TX_MIRRORED)) {
texstate->filter[0] &= ~R300_TX_WRAP_T_MASK;
texstate->filter[0] |= R300_TX_WRAP_T(R300_TX_CLAMP_TO_EDGE);
}
} else {
/* determine min/max levels */
/* the MAX_MIP level is the largest (finest) one */