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tgsi: Document NV_vertex_program1_1 instruction set operations.

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Michal Krol
2009-03-11 11:55:27 +01:00
parent ddf7d8fe01
commit 94cf8ea3b6
1 changed files with 28 additions and 0 deletions
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src/gallium/auxiliary/tgsi/tgsi-instruction-set.txt
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@@ -308,3 +308,31 @@ TGSI Instruction Specification
Considered for removal from language.
1.4 GL_NV_vertex_program1_1
----------------------------
1.4.1 ABS - Absolute
dst.x = abs(src.x)
dst.y = abs(src.y)
dst.z = abs(src.z)
dst.w = abs(src.w)
1.4.2 RCC - Reciprocal Clamped
dst.x = (1.0 / src.x) > 0.0 ? clamp(1.0 / src.x, 5.42101e-020, 1.884467e+019) : clamp(1.0 / src.x, -1.884467e+019, -5.42101e-020)
dst.y = (1.0 / src.x) > 0.0 ? clamp(1.0 / src.x, 5.42101e-020, 1.884467e+019) : clamp(1.0 / src.x, -1.884467e+019, -5.42101e-020)
dst.z = (1.0 / src.x) > 0.0 ? clamp(1.0 / src.x, 5.42101e-020, 1.884467e+019) : clamp(1.0 / src.x, -1.884467e+019, -5.42101e-020)
dst.w = (1.0 / src.x) > 0.0 ? clamp(1.0 / src.x, 5.42101e-020, 1.884467e+019) : clamp(1.0 / src.x, -1.884467e+019, -5.42101e-020)
1.4.3 DPH - Homogeneous Dot Product
dst.x = src0.x * src1.x + src0.y * src1.y + src0.z * src1.z + src1.w
dst.y = src0.x * src1.x + src0.y * src1.y + src0.z * src1.z + src1.w
dst.z = src0.x * src1.x + src0.y * src1.y + src0.z * src1.z + src1.w
dst.w = src0.x * src1.x + src0.y * src1.y + src0.z * src1.z + src1.w