diff options
| -rw-r--r-- | src/gallium/auxiliary/gallivm/lp_bld_format_soa.c | 46 | ||||
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_screen.c | 3 |
2 files changed, 45 insertions, 4 deletions
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_format_soa.c b/src/gallium/auxiliary/gallivm/lp_bld_format_soa.c index e5153a4bbb..9f242844e5 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_format_soa.c +++ b/src/gallium/auxiliary/gallivm/lp_bld_format_soa.c @@ -80,6 +80,24 @@ lp_build_format_swizzle_soa(const struct util_format_description *format_desc, } +/** + * Unpack several pixels in SoA. + * + * It takes a vector of packed pixels: + * + * packed = {P0, P1, P2, P3, ..., Pn} + * + * And will produce four vectors: + * + * red = {R0, R1, R2, R3, ..., Rn} + * green = {G0, G1, G2, G3, ..., Gn} + * blue = {B0, B1, B2, B3, ..., Bn} + * alpha = {A0, A1, A2, A3, ..., An} + * + * It requires that a packed pixel fits into an element of the output + * channels. The common case is when converting pixel with a depth of 32 bit or + * less into floats. + */ void lp_build_unpack_rgba_soa(LLVMBuilderRef builder, const struct util_format_description *format_desc, @@ -91,11 +109,13 @@ lp_build_unpack_rgba_soa(LLVMBuilderRef builder, unsigned start; unsigned chan; - /* FIXME: Support more formats */ - assert(format_desc->is_bitmask); + /* FIXME: Support more pixel formats */ assert(format_desc->block.width == 1); assert(format_desc->block.height == 1); - assert(format_desc->block.bits <= 32); + assert(format_desc->block.bits <= type.width); + /* FIXME: Support more output types */ + assert(type.floating); + assert(type.width == 32); /* Decode the input vector components */ start = 0; @@ -188,7 +208,27 @@ lp_build_unpack_rgba_soa(LLVMBuilderRef builder, break; + case UTIL_FORMAT_TYPE_FLOAT: + if (type.floating) { + assert(start == 0); + assert(stop == 32); + assert(type.width == 32); + input = LLVMBuildBitCast(builder, input, lp_build_vec_type(type), ""); + } + else { + /* FIXME */ + assert(0); + input = lp_build_undef(type); + } + break; + + case UTIL_FORMAT_TYPE_FIXED: + assert(0); + input = lp_build_undef(type); + break; + default: + assert(0); input = lp_build_undef(type); break; } diff --git a/src/gallium/drivers/llvmpipe/lp_screen.c b/src/gallium/drivers/llvmpipe/lp_screen.c index 5ad581bd17..625d4092db 100644 --- a/src/gallium/drivers/llvmpipe/lp_screen.c +++ b/src/gallium/drivers/llvmpipe/lp_screen.c @@ -222,7 +222,8 @@ llvmpipe_is_format_supported( struct pipe_screen *_screen, /* FIXME: Temporary restrictions. See lp_bld_sample_soa.c */ if(tex_usage & PIPE_TEXTURE_USAGE_SAMPLER) { - if(!format_desc->is_bitmask) + if(!format_desc->is_bitmask && + format != PIPE_FORMAT_R32_FLOAT) return FALSE; if(format_desc->colorspace != UTIL_FORMAT_COLORSPACE_RGB && |