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r600g: fix evergreen interpolation setup

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interp data is stored in gpr0 so first interp overwrote it
and subsequent ones got wrong values

reserve register 0 so it's not used for attribs.
alternative is to interpolate attrib0 last (reverse, as r600c does)
This commit is contained in:
Andre Maasikas 2010-10-06 21:14:15 +03:00
parent b2c0ef8b51
commit 84457701b0
1 changed files with 3 additions and 0 deletions
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3
src/gallium/drivers/r600/r600_shader.c
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@ -529,6 +529,9 @@ int r600_shader_from_tgsi(const struct tgsi_token *tokens, struct r600_shader *s
if (ctx.type == TGSI_PROCESSOR_VERTEX) {
ctx.file_offset[TGSI_FILE_INPUT] = 1;
}
if (ctx.type == TGSI_PROCESSOR_FRAGMENT && ctx.bc->chiprev == 2) {
ctx.file_offset[TGSI_FILE_INPUT] = 1;
}
ctx.file_offset[TGSI_FILE_OUTPUT] = ctx.file_offset[TGSI_FILE_INPUT] +
ctx.info.file_count[TGSI_FILE_INPUT];
ctx.file_offset[TGSI_FILE_TEMPORARY] = ctx.file_offset[TGSI_FILE_OUTPUT] +