diff options
Diffstat (limited to 'src/gallium/drivers/r300')
| -rw-r--r-- | src/gallium/drivers/r300/r300_context.h | 1 | ||||
| -rw-r--r-- | src/gallium/drivers/r300/r300_state.c | 4 | ||||
| -rw-r--r-- | src/gallium/drivers/r300/r300_state_derived.c | 85 |
3 files changed, 84 insertions, 6 deletions
diff --git a/src/gallium/drivers/r300/r300_context.h b/src/gallium/drivers/r300/r300_context.h index 7f655dbfd21..8f4e2de02d1 100644 --- a/src/gallium/drivers/r300/r300_context.h +++ b/src/gallium/drivers/r300/r300_context.h @@ -162,7 +162,6 @@ struct r300_sampler_state { uint32_t filter0; /* R300_TX_FILTER0: 0x4400 */ uint32_t filter1; /* R300_TX_FILTER1: 0x4440 */ - uint32_t border_color; /* R300_TX_BORDER_COLOR: 0x45c0 */ /* Min/max LOD must be clamped to [0, last_level], thus * it's dependent on a currently bound texture */ diff --git a/src/gallium/drivers/r300/r300_state.c b/src/gallium/drivers/r300/r300_state.c index d6cded927a1..ad3282a4e6b 100644 --- a/src/gallium/drivers/r300/r300_state.c +++ b/src/gallium/drivers/r300/r300_state.c @@ -1169,7 +1169,6 @@ static void* struct r300_sampler_state* sampler = CALLOC_STRUCT(r300_sampler_state); boolean is_r500 = r300->screen->caps.is_r500; int lod_bias; - union util_color uc; sampler->state = *state; @@ -1226,9 +1225,6 @@ static void* sampler->filter1 |= r500_anisotropy(state->max_anisotropy); } - util_pack_color(state->border_color, PIPE_FORMAT_B8G8R8A8_UNORM, &uc); - sampler->border_color = uc.ui; - /* R500-specific fixups and optimizations */ if (r300->screen->caps.is_r500) { sampler->filter1 |= R500_BORDER_FIX; diff --git a/src/gallium/drivers/r300/r300_state_derived.c b/src/gallium/drivers/r300/r300_state_derived.c index f9a516825df..566a828871d 100644 --- a/src/gallium/drivers/r300/r300_state_derived.c +++ b/src/gallium/drivers/r300/r300_state_derived.c @@ -567,6 +567,85 @@ static void r300_update_rs_block(struct r300_context *r300) } } +static uint32_t r300_get_border_color(enum pipe_format format, + const unsigned char swizzle_view[4], + const float border[4]) +{ + const struct util_format_description *desc; + unsigned char swizzle[4]; + unsigned i; + float border_swizzled[4]; + uint32_t r; + + desc = util_format_description(format); + + /* Combine the swizzles. */ + for (i = 0; i < 4; i++) { + swizzle[i] = swizzle_view[i] <= UTIL_FORMAT_SWIZZLE_W ? + desc->swizzle[swizzle_view[i]] : swizzle_view[i]; + } + + /* Apply swizzling. */ + for (i = 0; i < 4; i++) { + switch (swizzle[i]) { + case UTIL_FORMAT_SWIZZLE_X: + border_swizzled[i] = border[0]; + break; + case UTIL_FORMAT_SWIZZLE_Y: + border_swizzled[i] = border[1]; + break; + case UTIL_FORMAT_SWIZZLE_Z: + border_swizzled[i] = border[2]; + break; + case UTIL_FORMAT_SWIZZLE_W: + border_swizzled[i] = border[3]; + break; + case UTIL_FORMAT_SWIZZLE_0: + border_swizzled[i] = 0; + break; + default: /* 1, NONE */ + border_swizzled[i] = 1; + } + } + + /* We don't use util_pack_format because it does not handle the formats + * we want, e.g. R4G4B4A4 is non-existent in Gallium. */ + switch (desc->channel[0].size) { + case 4: + r = ((float_to_ubyte(border_swizzled[0]) & 0xf0) >> 4) | + ((float_to_ubyte(border_swizzled[1]) & 0xf0) << 0) | + ((float_to_ubyte(border_swizzled[2]) & 0xf0) << 4) | + ((float_to_ubyte(border_swizzled[3]) & 0xf0) << 8); + break; + + case 5: + if (desc->channel[1].size == 5) { + r = ((float_to_ubyte(border_swizzled[0]) & 0xf8) >> 3) | + ((float_to_ubyte(border_swizzled[1]) & 0xf8) << 2) | + ((float_to_ubyte(border_swizzled[2]) & 0xf8) << 7) | + ((float_to_ubyte(border_swizzled[3]) & 0x80) << 8); + } else if (desc->channel[1].size == 6) { + r = ((float_to_ubyte(border_swizzled[0]) & 0xf8) >> 3) | + ((float_to_ubyte(border_swizzled[1]) & 0xfc) << 3) | + ((float_to_ubyte(border_swizzled[2]) & 0xf8) << 8); + } else { + assert(0); + } + break; + + default: + /* I think the fat formats (16, 32) are specified + * as the 8-bit ones. I am not sure how compressed formats + * work here. */ + r = ((float_to_ubyte(border_swizzled[0]) & 0xff) << 0) | + ((float_to_ubyte(border_swizzled[1]) & 0xff) << 8) | + ((float_to_ubyte(border_swizzled[2]) & 0xff) << 16) | + ((float_to_ubyte(border_swizzled[3]) & 0xff) << 24); + } + + return r; +} + static void r300_merge_textures_and_samplers(struct r300_context* r300) { struct r300_textures_state *state = @@ -599,7 +678,11 @@ static void r300_merge_textures_and_samplers(struct r300_context* r300) texstate->format = view->format; texstate->filter0 = sampler->filter0; texstate->filter1 = sampler->filter1; - texstate->border_color = sampler->border_color; + + /* Set the border color. */ + texstate->border_color = + r300_get_border_color(view->base.format, view->swizzle, + sampler->state.border_color); /* determine min/max levels */ max_level = MIN3(sampler->max_lod + view->base.first_level, |