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authorCorbin Simpson <MostAwesomeDude@gmail.com>2009-11-01 09:24:02 -0800
committerCorbin Simpson <MostAwesomeDude@gmail.com>2009-11-01 09:24:02 -0800
commitcab749a1d0046f59ca10f96d2e6343404e5f2616 (patch)
tree1086863db712ca44df8e8121ad08b1d4f70e1d3c /src
parent5de8f9744015d3645a12dac244ad47daf8481dd2 (diff)
r300g: Adopt osiris' PSC data and swizzle.
A fair amount more flexible and easier to maintain.
Diffstat (limited to 'src')
-rw-r--r--src/gallium/drivers/r300/r300_state_inlines.h128
1 files changed, 88 insertions, 40 deletions
diff --git a/src/gallium/drivers/r300/r300_state_inlines.h b/src/gallium/drivers/r300/r300_state_inlines.h
index ec11a41253..176e59f281 100644
--- a/src/gallium/drivers/r300/r300_state_inlines.h
+++ b/src/gallium/drivers/r300/r300_state_inlines.h
@@ -402,58 +402,106 @@ static INLINE uint32_t r300_translate_gb_pipes(int pipe_count)
return 0;
}
+/* Utility function to count the number of components in RGBAZS formats.
+ * XXX should go to util or p_format.h */
+static INLINE unsigned pf_component_count(enum pipe_format format) {
+ unsigned count = 0;
+
+ if (pf_layout(format) != PIPE_FORMAT_LAYOUT_RGBAZS) {
+ return count;
+ }
+
+ if (pf_size_x(format)) {
+ count++;
+ }
+ if (pf_size_y(format)) {
+ count++;
+ }
+ if (pf_size_z(format)) {
+ count++;
+ }
+ if (pf_size_w(format)) {
+ count++;
+ }
+
+ return count;
+}
+
/* Translate pipe_formats into PSC vertex types. */
static INLINE uint16_t
r300_translate_vertex_data_type(enum pipe_format format) {
- switch (format) {
- case PIPE_FORMAT_R32_FLOAT:
- return R300_DATA_TYPE_FLOAT_1;
- break;
- case PIPE_FORMAT_R32G32_FLOAT:
- return R300_DATA_TYPE_FLOAT_2;
- break;
- case PIPE_FORMAT_R32G32B32_FLOAT:
- return R300_DATA_TYPE_FLOAT_3;
- break;
- case PIPE_FORMAT_R32G32B32A32_FLOAT:
- return R300_DATA_TYPE_FLOAT_4;
- break;
- case PIPE_FORMAT_R8G8B8A8_UNORM:
- return R300_DATA_TYPE_BYTE |
- R300_NORMALIZE;
+ uint32_t result = 0;
+ unsigned components = pf_component_count(format);
+
+ if (pf_layout(format) != PIPE_FORMAT_LAYOUT_RGBAZS) {
+ debug_printf("r300: Bad format %s in %s\n", pf_name(format),
+ __FUNCTION__);
+ return 0;
+ }
+
+ switch (pf_type(format)) {
+ /* Half-floats, floats, doubles */
+ case PIPE_FORMAT_TYPE_FLOAT:
+ switch (pf_size_x(format)) {
+ case 4:
+ result = R300_DATA_TYPE_FLOAT_1 + (components - 1);
+ break;
+ default:
+ assert(0);
+ }
+ break;
+ /* Normalized unsigned ints */
+ case PIPE_FORMAT_TYPE_UNORM:
+ /* Normalized signed ints */
+ case PIPE_FORMAT_TYPE_SNORM:
+ /* Non-normalized unsigned ints */
+ case PIPE_FORMAT_TYPE_USCALED:
+ /* Non-normalized signed ints */
+ case PIPE_FORMAT_TYPE_SSCALED:
+ switch (pf_size_x(format)) {
+ case 1:
+ result = R300_DATA_TYPE_BYTE;
+ break;
+ case 2:
+ if (components > 2) {
+ result = R300_DATA_TYPE_SHORT_4;
+ } else {
+ result = R300_DATA_TYPE_SHORT_2;
+ }
+ break;
+ default:
+ assert(0);
+ }
break;
default:
- debug_printf("r300: Implementation error: "
- "Bad vertex data format %s!\n", pf_name(format));
assert(0);
- break;
}
- return 0;
+
+ if (pf_type(format) == PIPE_FORMAT_TYPE_SSCALED) {
+ result |= R300_SIGNED;
+ } else if (pf_type(format) == PIPE_FORMAT_TYPE_UNORM) {
+ result |= R300_NORMALIZE;
+ } else if (pf_type(format) == PIPE_FORMAT_TYPE_SNORM) {
+ result |= (R300_SIGNED | R300_NORMALIZE);
+ }
+
+ return result;
}
static INLINE uint16_t
r300_translate_vertex_data_swizzle(enum pipe_format format) {
- switch (format) {
- case PIPE_FORMAT_R32_FLOAT:
- return R300_VAP_SWIZZLE_X001;
- break;
- case PIPE_FORMAT_R32G32_FLOAT:
- return R300_VAP_SWIZZLE_XY01;
- break;
- case PIPE_FORMAT_R32G32B32_FLOAT:
- return R300_VAP_SWIZZLE_XYZ1;
- break;
- case PIPE_FORMAT_R32G32B32A32_FLOAT:
- case PIPE_FORMAT_R8G8B8A8_UNORM:
- return R300_VAP_SWIZZLE_XYZW;
- break;
- default:
- debug_printf("r300: Implementation error: "
- "Bad vertex data format %s!\n", pf_name(format));
- assert(0);
- break;
+
+ if (pf_layout(format) != PIPE_FORMAT_LAYOUT_RGBAZS) {
+ debug_printf("r300: Bad format %s in %s\n", pf_name(format),
+ __FUNCTION__);
+ return 0;
}
- return 0;
+
+ return ((pf_swizzle_x(format) << R300_SWIZZLE_SELECT_X_SHIFT) |
+ (pf_swizzle_y(format) << R300_SWIZZLE_SELECT_Y_SHIFT) |
+ (pf_swizzle_z(format) << R300_SWIZZLE_SELECT_Z_SHIFT) |
+ (pf_swizzle_w(format) << R300_SWIZZLE_SELECT_W_SHIFT) |
+ (0xf << R300_WRITE_ENA_SHIFT));
}
#endif /* R300_STATE_INLINES_H */