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r300g: Adopt osiris' PSC data and swizzle.

Browse source 
A fair amount more flexible and easier to maintain.
This commit is contained in:
Corbin Simpson 2009-11-01 09:24:02 -08:00
parent 5de8f97440
commit cab749a1d0
1 changed files with 87 additions and 39 deletions
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126
src/gallium/drivers/r300/r300_state_inlines.h
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@ -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;
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;
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;
/* 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 */