summaryrefslogtreecommitdiff
path: root/src
diff options
context:
space:
mode:
authorMichal Krol <michal@vmware.com>2009-03-10 10:04:29 +0100
committerMichal Krol <michal@vmware.com>2009-03-10 10:27:13 +0100
commit5d0f69e33d6ed7f47a4d25816c47bc3fa27356e6 (patch)
tree295ac97c4f8f1bb9275ef52d69aebf26692af85c /src
parent42fc3d3fa9d7c4a9fe7e15b9ddecfd816a12f1bc (diff)
tgsi: Document EXT_vertex_shader instruction set operations.
Diffstat (limited to 'src')
-rw-r--r--src/gallium/auxiliary/tgsi/tgsi-instruction-set.txt108
1 files changed, 108 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/tgsi/tgsi-instruction-set.txt b/src/gallium/auxiliary/tgsi/tgsi-instruction-set.txt
index 97b74eb11d..b36091fad3 100644
--- a/src/gallium/auxiliary/tgsi/tgsi-instruction-set.txt
+++ b/src/gallium/auxiliary/tgsi/tgsi-instruction-set.txt
@@ -197,3 +197,111 @@ TGSI Instruction Specification
dst.z = src0.x * src1.x + src0.y * src1.y + src2.x
dst.w = src0.x * src1.x + src0.y * src1.y + src2.x
+
+1.3 GL_EXT_vertex_shader
+-------------------------
+
+
+1.3.1 INDEX - Array Lookup
+
+ Considered for removal from language.
+
+
+1.3.2 NEGATE - Negate
+
+ Considered for removal from language.
+
+
+1.3.3 MADD - Multiply And Add
+
+ Alias for MAD.
+
+
+1.3.4 FRAC - Fraction
+
+ dst.x = src.x - floor(src.x)
+ dst.y = src.y - floor(src.y)
+ dst.z = src.z - floor(src.z)
+ dst.w = src.w - floor(src.w)
+
+
+1.3.5 SETGE - Set On Greater Equal
+
+ Alias for SGE.
+
+
+1.3.6 SETLT - Set On Less Than
+
+ Alias for SLT.
+
+
+1.3.7 CLAMP - Clamp
+
+ dst.x = clamp(src0.x, src1.x, src2.x)
+ dst.y = clamp(src0.y, src1.y, src2.y)
+ dst.z = clamp(src0.z, src1.z, src2.z)
+ dst.w = clamp(src0.w, src1.w, src2.w)
+
+
+1.3.8 FLOOR - Floor
+
+ dst.x = floor(src.x)
+ dst.y = floor(src.y)
+ dst.z = floor(src.z)
+ dst.w = floor(src.w)
+
+
+1.3.9 ROUND - Round
+
+ dst.x = round(src.x)
+ dst.y = round(src.y)
+ dst.z = round(src.z)
+ dst.w = round(src.w)
+
+
+1.3.10 EXPBASE2 - Exponent Base 2
+
+ dst.x = pow(2.0, src.x)
+ dst.y = pow(2.0, src.x)
+ dst.z = pow(2.0, src.x)
+ dst.w = pow(2.0, src.x)
+
+
+1.3.11 LOGBASE2 - Logarithm Base 2
+
+ dst.x = lg2(src.x)
+ dst.y = lg2(src.x)
+ dst.z = lg2(src.x)
+ dst.w = lg2(src.x)
+
+
+1.3.12 POWER - Power
+
+ dst.x = pow(src0.x, src1.x)
+ dst.y = pow(src0.x, src1.x)
+ dst.z = pow(src0.x, src1.x)
+ dst.w = pow(src0.x, src1.x)
+
+
+1.3.13 RECIP - Reciprocal
+
+ Alias for RCP.
+
+
+1.3.14 RECIPSQRT - Reciprocal Square Root
+
+ Alias for RSQ.
+
+
+1.3.15 CROSSPRODUCT - Cross Product
+
+ dst.x = src0.y * src1.z - src1.y * src0.z
+ dst.y = src0.z * src1.x - src1.z * src0.x
+ dst.z = src0.x * src1.y - src1.x * src0.y
+ dst.w = 1.0
+
+
+1.3.16 MULTIPLYMATRIX - Multiply Matrix
+
+ Considered for removal from language.
+