Import aap/librw @ masterHEADmaster

Snapshot for re3/reVC vendoring, per @lzcnt.
Source: https://github.com/aap/librw (master).

4 files changed, 320 insertions, 0 deletions

diff --git a/tools/ps2test/vu/defaultpipe.dsm b/tools/ps2test/vu/defaultpipe.dsm
new file mode 100644
index 0000000..ae3fa39
--- /dev/null
+++ b/tools/ps2test/vu/defaultpipe.dsm
@@ -0,0 +1,93 @@
+.global defaultPipe
+
+.equ vertexTop, 0x3d0
+.equ numInAttribs, 4
+.equ numOutAttribs, 3
+.equ numOutBuf, 2
+.equ vertCount, ((vertexTop-numOutBuf)/(numInAttribs*2+numOutAttribs*numOutBuf))
+.equ offset, (vertCount*numInAttribs)
+.equ outBuf1, (2*offset)
+.equ outSize, ((vertexTop-outBuf1-2)/2)
+.equ outBuf2, (outBuf1+outSize)
+
+.equ lightMat,		0x3d0
+.equ ambientLight, 	0x3d4
+.equ lightDir,		0x3d5
+
+.equ matrix, 		0x3f0
+.equ XYZScale, 		0x3f7
+.equ XYZOffset, 	0x3f8
+.equ gifTag, 		0x3fa
+.equ matColor, 		0x3fb
+.equ surfProps, 	0x3fc
+
+
+.balign 16,0
+defaultPipe:
+DMAret *
+MPG 0, *
+.vu
+Start:
+#include "setup_persp.vu"
+Cnt:
+	NOP				XTOP VI02			; input pointer
+	NOP				LQ VF01, gifTag(VI00)
+	NOP				XITOP VI01			; vertex count
+	NOP				IADDIU VI05, VI00, 0x4000
+	NOP				IADD VI05, VI05, VI05
+	NOP				IOR VI05, VI05, VI01
+	NOP				SQ VF01, 0(VI12)
+	NOP				ISW.x VI05, 0(VI12)
+	NOP				IADDIU VI03, VI12, 1		; output pointer
+	NOP				LQ VF18, lightMat(VI00)
+	NOP				LQ VF19, lightMat+1(VI00)
+	NOP				LQ VF20, lightMat+2(VI00)
+
+Loop:
+	NOP				LQI VF01, (VI02++)		; vertex
+	NOP				LQI VF02, (VI02++)		; UV
+	NOP				LQI VF03, (VI02++)		; color
+	NOP				LQI VF04, (VI02++)		; normal
+
+	MULAw.xyzw ACC, VF31, VF00w	NOP				; transform vertex
+	MADDAx.xyw ACC, VF28, VF01x	NOP
+	MADDAy.xyw ACC, VF29, VF01y	NOP
+	MADDz.xyzw VF01, VF30, VF01z	NOP
+	ITOF0 VF03, VF03		NOP
+	ITOF0[I] VF04, VF04		LOI 0.0078125			; - normal scale
+	NOP				NOP
+	NOP				DIV Q, VF00w, VF01w
+	NOP				WAITQ
+	MULq VF01, VF01, Q		NOP				; perspective division
+	MULi VF04, VF04, I		NOP				; scale normal
+	NOP				MR32.z VF02, VF00
+	NOP				NOP
+	SUB.w VF01, VF01, VF01		NOP
+	MULAx.xyz ACC, VF18, VF04x	NOP				; transform normal
+	MADDAy.xyz ACC, VF19, VF04y	NOP
+	MADDz.xyz VF04, VF20, VF04z	NOP
+	ADD.xyz VF01, VF01, VF25	NOP
+	MULq VF02, VF02, Q		NOP
+	NOP				NOP
+	FTOI0 VF03, VF03		NOP
+	FTOI4 VF01, VF01		NOP
+	NOP				SQ VF04, -2(VI02)		; store normal
+	NOP				IADDI VI01, VI01, -1
+	NOP				SQI VF02, (VI03++)		; STQ
+	NOP				SQI VF03, (VI03++)		; color
+	NOP				SQI VF01, (VI03++)		; vertex
+	NOP				IBNE VI01, VI00, Loop
+	NOP				NOP
+
+#include "light.vu"
+
+	NOP				XGKICK VI12
+	NOP				IADD VI15,VI00,VI12
+	NOP				IADD VI12,VI00,VI13
+	NOP[E]				IADD VI13,VI00,VI15
+	NOP				NOP
+	NOP				B Cnt
+	NOP				NOP
+
+.EndMPG
+.EndDmaData
diff --git a/tools/ps2test/vu/light.vu b/tools/ps2test/vu/light.vu
new file mode 100644
index 0000000..8f7a31c
--- /dev/null
+++ b/tools/ps2test/vu/light.vu
@@ -0,0 +1,94 @@
+; Ambient light:
+	NOP				LQ VF26, ambientLight(VI00)
+	NOP				XITOP VI01
+	NOP				IADDIU VI03, VI12, 2
+Ambloop:
+	NOP				LQ VF03, 0(VI03)	; output color
+	NOP				NOP
+	NOP				NOP
+	NOP				NOP
+	ITOF0 VF03, VF03		NOP
+	NOP				NOP
+	NOP				NOP
+	NOP				NOP
+	ADD.xyz VF03, VF03, VF26	NOP
+	NOP				NOP
+	NOP				NOP
+	NOP				NOP
+	FTOI0 VF03, VF03		NOP
+	NOP				IADDI VI01, VI01, -1
+	NOP				IADDIU VI03, VI03, numOutAttribs
+	NOP				IBNE VI01, VI00, Ambloop
+	NOP				SQ VF03, -numOutAttribs(VI03)
+; end amblight
+
+; Direct Light
+	NOP				LQ VF26, lightDir(VI00)
+	NOP				XITOP VI01
+	NOP				XTOP VI02
+	NOP				IADDIU VI03, VI12, 2
+	SUB.xyz VF26, VF00, VF26	NOP
+Dirloop:
+	NOP				LQ VF01, 3(VI02);	; normal
+	NOP				LQ VF02, 0(VI03);	; output color
+	NOP				NOP
+	NOP				NOP
+	MUL VF03, VF01, VF26		NOP
+	ITOF0 VF02, VF02		NOP
+	NOP				NOP
+	NOP				NOP
+	ADDy.x VF03, VF03, VF03y	NOP
+	NOP				NOP
+	NOP				NOP
+	NOP				NOP
+	ADDz.x VF03, VF03, VF03z	NOP
+	NOP				NOP
+	NOP				NOP
+	NOP				NOP
+	MAX.x VF03, VF00, VF03		NOP	; clamp to 0
+	NOP[I]				LOI 255
+	NOP				NOP
+	NOP				NOP
+	MULi.x VF03, VF03, I		NOP
+	NOP				NOP
+	NOP				NOP
+	NOP				NOP
+	ADDx.xyz VF02, VF02, VF03x	NOP
+	NOP				NOP
+	NOP				NOP
+	NOP				NOP
+	FTOI0 VF02, VF02		NOP
+	NOP				IADDI VI01, VI01, -1
+	NOP				IADDIU VI02, VI02, numInAttribs
+	NOP				IADDIU VI03, VI03, numOutAttribs
+	NOP				IBNE VI01, VI00, Dirloop
+	NOP				SQ VF02, -numOutAttribs(VI03)
+; end dirlight
+
+; Material color and clamp
+	NOP				LQ VF27, matColor(VI00)
+	NOP				XITOP VI01
+	NOP				IADDIU VI03, VI12, 2
+Colorloop:
+	NOP				LQ VF03, 0(VI03)
+	NOP				NOP
+	NOP				NOP
+	NOP				NOP
+	ITOF0 VF03, VF03		NOP
+	NOP				NOP
+	NOP				NOP
+	NOP				NOP
+	MUL VF03, VF03, VF27		NOP
+	NOP[I]				LOI 255
+	NOP				NOP
+	NOP				NOP
+	MINIi VF03, VF03, I		NOP
+	NOP				NOP
+	NOP				NOP
+	NOP				NOP
+	FTOI0 VF03, VF03		NOP
+	NOP				IADDI VI01, VI01, -1
+	NOP				IADDIU VI03, VI03, numOutAttribs
+	NOP				IBNE VI01, VI00, Colorloop
+	NOP				SQ VF03, -numOutAttribs(VI03)
+; end material color
diff --git a/tools/ps2test/vu/setup_persp.vu b/tools/ps2test/vu/setup_persp.vu
new file mode 100644
index 0000000..b9ea42f
--- /dev/null
+++ b/tools/ps2test/vu/setup_persp.vu
@@ -0,0 +1,39 @@
+/* This is the the projection matrix we start with:

+ * 1/2w       0    ox/2w + 1/2   -ox/2w

+ *    0   -1/2h   -oy/2h + 1/2    oy/2h

+ *    0       0              1        0

+ *    0       0              1        0

+ * To get rid of the +1/2 in the combined matrix we

+ * subtract the z-row/2 from the x- and y-rows.

+ *

+ * The z-row is then set to [0 0 0 1] such that multiplication

+ * by XYZscale gives [0 0 0 zScale]. After perspective division

+ * and addition of XYZoffset we then get zScale/w + zShift for z.

+ *

+ * XYZScale scales xy to the resolution and z by zScale.

+ * XYZOffset translates xy to the GS coordinate system (where

+ * [2048, 2048] is the center of the frame buffer) and add zShift to z.

+ */

+

+; constant:

+;	VF28-VF31	transformation matrix

+;	VF25		XYZ offset

+

+

+	SUB.z  VF28, VF28, VF28		LOI 0.5				; right.z = 0

+	SUB.z  VF29, VF29, VF29		LQ VF28, matrix(VI00)		; up.z = 0 - load matrix

+	SUB.z  VF30, VF30, VF30		LQ VF29, matrix+1(VI00)		; at.z = 0 - load matrix

+	ADDw.z VF31, VF00, VF00		LQ VF30, matrix+2(VI00)		; at.z = 1 - load matrix

+	NOP				LQ VF31, matrix+3(VI00)		;          - load matrix

+	MULi.w VF20, VF28, I		LQ.xyz VF01, XYZScale(VI00)	; fix matrix - load scale

+	MULi.w VF21, VF29, I		NOP				; fix matrix

+	MULi.w VF22, VF30, I		NOP				; fix matrix

+	MULi.w VF23, VF31, I		NOP				; fix matrix

+	SUBw.xy VF28, VF28, VF20	NOP				; fix matrix

+	SUBw.xy VF29, VF29, VF21	NOP				; fix matrix

+	SUBw.xy VF30, VF30, VF22	NOP				; fix matrix

+	SUBw.xy VF31, VF31, VF23	NOP				; fix matrix

+	MUL.xy  VF28, VF28, VF01	LQ.xyz VF25, XYZOffset(VI00)	; scale matrix

+	MUL.xy  VF29, VF29, VF01	IADDIU VI12, VI00, outBuf1	; scale matrix

+	MUL.xy  VF30, VF30, VF01	IADDIU VI13, VI00, outBuf2	; scale matrix

+	MUL.xyz VF31, VF31, VF01	NOP				; scale matrix

diff --git a/tools/ps2test/vu/skinpipe.dsm b/tools/ps2test/vu/skinpipe.dsm
new file mode 100644
index 0000000..18536cd
--- /dev/null
+++ b/tools/ps2test/vu/skinpipe.dsm
@@ -0,0 +1,94 @@
+.global skinPipe
+
+.equ vertexTop, 0x2d0
+.equ numInAttribs, 5
+.equ numOutAttribs, 3
+.equ numOutBuf, 2
+.equ vertCount, ((vertexTop-numOutBuf)/(numInAttribs*2+numOutAttribs*numOutBuf))
+.equ offset, (vertCount*numInAttribs)
+.equ outBuf1, (2*offset)
+.equ outSize, ((vertexTop-outBuf1-2)/2)
+.equ outBuf2, (outBuf1+outSize)
+
+.equ lightMat,		0x3d0
+.equ ambientLight, 	0x3d4
+.equ lightDir,		0x3d5
+
+.equ matrix, 		0x3f0
+.equ XYZScale, 		0x3f7
+.equ XYZOffset, 	0x3f8
+.equ gifTag, 		0x3fa
+.equ matColor, 		0x3fb
+.equ surfProps, 	0x3fc
+
+
+.balign 16,0
+skinPipe:
+DMAret *
+MPG 0, *
+.vu
+Start:
+#include "setup_persp.vu"
+Cnt:
+	NOP				XTOP VI02			; input pointer
+	NOP				LQ VF01, gifTag(VI00)
+	NOP				XITOP VI01			; vertex count
+	NOP				IADDIU VI05, VI00, 0x4000
+	NOP				IADD VI05, VI05, VI05
+	NOP				IOR VI05, VI05, VI01
+	NOP				SQ VF01, 0(VI12)
+	NOP				ISW.x VI05, 0(VI12)
+	NOP				IADDIU VI03, VI12, 1		; output pointer
+	NOP				LQ VF18, lightMat(VI00)
+	NOP				LQ VF19, lightMat+1(VI00)
+	NOP				LQ VF20, lightMat+2(VI00)
+
+Loop:
+	NOP				LQI VF01, (VI02++)		; vertex
+	NOP				LQI VF02, (VI02++)		; UV
+	NOP				LQI VF03, (VI02++)		; color
+	NOP				LQI VF04, (VI02++)		; normal
+	NOP				IADDIU VI02, VI02, 1		; skip weights
+
+	MULAw.xyzw ACC, VF31, VF00w	NOP				; transform vertex
+	MADDAx.xyw ACC, VF28, VF01x	NOP
+	MADDAy.xyw ACC, VF29, VF01y	NOP
+	MADDz.xyzw VF01, VF30, VF01z	NOP
+	ITOF0 VF03, VF03		NOP
+	ITOF0[I] VF04, VF04		LOI 0.0078125			; - normal scale
+	NOP				NOP
+	NOP				DIV Q, VF00w, VF01w
+	NOP				WAITQ
+	MULq VF01, VF01, Q		NOP				; perspective division
+	MULi VF04, VF04, I		NOP				; scale normal
+	NOP				MR32.z VF02, VF00
+	NOP				NOP
+	SUB.w VF01, VF01, VF01		NOP
+	MULAx.xyz ACC, VF18, VF04x	NOP				; transform normal
+	MADDAy.xyz ACC, VF19, VF04y	NOP
+	MADDz.xyz VF04, VF20, VF04z	NOP
+	ADD.xyz VF01, VF01, VF25	NOP
+	MULq VF02, VF02, Q		NOP
+	NOP				NOP
+	FTOI0 VF03, VF03		NOP
+	FTOI4 VF01, VF01		NOP
+	NOP				SQ VF04, -2(VI02)		; store normal
+	NOP				IADDI VI01, VI01, -1
+	NOP				SQI VF02, (VI03++)		; STQ
+	NOP				SQI VF03, (VI03++)		; color
+	NOP				SQI VF01, (VI03++)		; vertex
+	NOP				IBNE VI01, VI00, Loop
+	NOP				NOP
+
+#include "light.vu"
+
+	NOP				XGKICK VI12
+	NOP				IADD VI15,VI00,VI12
+	NOP				IADD VI12,VI00,VI13
+	NOP[E]				IADD VI13,VI00,VI15
+	NOP				NOP
+	NOP				B Cnt
+	NOP				NOP
+
+.EndMPG
+.EndDmaData