diff options
Diffstat (limited to 'src/packed_yuv_wm.g4a')
| -rw-r--r-- | src/packed_yuv_wm.g4a | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/src/packed_yuv_wm.g4a b/src/packed_yuv_wm.g4a new file mode 100644 index 00000000..d312d170 --- /dev/null +++ b/src/packed_yuv_wm.g4a @@ -0,0 +1,161 @@ +/* The initial payload of the thread is always g0. + * WM_URB (incoming URB entries) is g3 + * X0_R is g4 + * X1_R is g5 + * Y0_R is g6 + * Y1_R is g7 + */ + + /* Set up the X/Y screen coordinates of the pixels in our 4 subspans. Each + * subspan is a 2x2 rectangle, and the screen x/y of the upper left of each + * subspan are given in GRF register 1.2 through 1.5 (which, with the word + * addressing below, are 1.4 through 1.11). + * + * The result is WM_X*_R and WM_Y*R being: + * + * X0: {ss0.x, ss0.x+1, ss0.x, ss0.x+1, ss1.x, ss1.x+1, ss1.x, ss1.x+y} + * Y0: {ss0.y, ss0.y, ss0.y+1, ss0.y+1, ss1.y, ss1.y, ss1.y+1, ss1.y+1} + * X1: {ss2.x, ss2.x+1, ss2.x, ss2.x+1, ss3.x, ss3.x+1, ss3.x, ss3.x+y} + * Y1: {ss2.y, ss2.y, ss2.y+1, ss2.y+1, ss3.y, ss3.y, ss3.y+1, ss3.y+1} + */ + + /* Set up ss0.x coordinates*/ +mov (1) g4<1>F g1.8<0,1,0>UW { align1 }; +add (1) g4.4<1>F g1.8<0,1,0>UW 1UB { align1 }; +mov (1) g4.8<1>F g1.8<0,1,0>UW { align1 }; +add (1) g4.12<1>F g1.8<0,1,0>UW 1UB { align1 }; + /* Set up ss0.y coordinates */ +mov (1) g6<1>F g1.10<0,1,0>UW { align1 }; +mov (1) g6.4<1>F g1.10<0,1,0>UW { align1 }; +add (1) g6.8<1>F g1.10<0,1,0>UW 1UB { align1 }; +add (1) g6.12<1>F g1.10<0,1,0>UW 1UB { align1 }; + /* set up ss1.x coordinates */ +mov (1) g4.16<1>F g1.12<0,1,0>UW { align1 }; +add (1) g4.20<1>F g1.12<0,1,0>UW 1UB { align1 }; +mov (1) g4.24<1>F g1.12<0,1,0>UW { align1 }; +add (1) g4.28<1>F g1.12<0,1,0>UW 1UB { align1 }; + /* set up ss1.y coordinates */ +mov (1) g6.16<1>F g1.14<0,1,0>UW { align1 }; +mov (1) g6.20<1>F g1.14<0,1,0>UW { align1 }; +add (1) g6.24<1>F g1.14<0,1,0>UW 1UB { align1 }; +add (1) g6.28<1>F g1.14<0,1,0>UW 1UB { align1 }; + /* Set up ss2.x coordinates */ +mov (1) g5<1>F g1.16<0,1,0>UW { align1 }; +add (1) g5.4<1>F g1.16<0,1,0>UW 1UB { align1 }; +mov (1) g5.8<1>F g1.16<0,1,0>UW { align1 }; +add (1) g5.12<1>F g1.16<0,1,0>UW 1UB { align1 }; + /* Set up ss2.y coordinates */ +mov (1) g7<1>F g1.18<0,1,0>UW { align1 }; +mov (1) g7.4<1>F g1.18<0,1,0>UW { align1 }; +add (1) g7.8<1>F g1.18<0,1,0>UW 1UB { align1 }; +add (1) g7.12<1>F g1.18<0,1,0>UW 1UB { align1 }; + /* Set up ss3.x coordinates */ +mov (1) g5.16<1>F g1.20<0,1,0>UW { align1 }; +add (1) g5.20<1>F g1.20<0,1,0>UW 1UB { align1 }; +mov (1) g5.24<1>F g1.20<0,1,0>UW { align1 }; +add (1) g5.28<1>F g1.20<0,1,0>UW 1UB { align1 }; + /* Set up ss3.y coordinates */ +mov (1) g7.16<1>F g1.22<0,1,0>UW { align1 }; +mov (1) g7.20<1>F g1.22<0,1,0>UW { align1 }; +add (1) g7.24<1>F g1.22<0,1,0>UW 1UB { align1 }; +add (1) g7.28<1>F g1.22<0,1,0>UW 1UB { align1 }; + + /* Now, map these screen space coordinates into texture coordinates. */ + /* subtract screen-space X origin of vertex 0. */ +add (8) g4<1>F g4<8,8,1>F -g1<0,1,0>F { align1 }; +add (8) g5<1>F g5<8,8,1>F -g1<0,1,0>F { align1 }; + /* scale by texture X increment */ +mul (8) g4<1>F g4<8,8,1>F g3<0,1,0>F { align1 }; +mul (8) g5<1>F g5<8,8,1>F g3<0,1,0>F { align1 }; + /* add in texture X offset */ +add (8) g4<1>F g4<8,8,1>F g3.12<0,1,0>F { align1 }; +add (8) g5<1>F g5<8,8,1>F g3.12<0,1,0>F { align1 }; + /* subtract screen-space Y origin of vertex 0. */ +add (8) g6<1>F g6<8,8,1>F -g1.4<0,1,0>F { align1 }; +add (8) g7<1>F g7<8,8,1>F -g1.4<0,1,0>F { align1 }; + /* scale by texture Y increment */ +mul (8) g6<1>F g6<8,8,1>F g3.20<0,1,0>F { align1 }; +mul (8) g7<1>F g7<8,8,1>F g3.20<0,1,0>F { align1 }; + /* add in texture Y offset */ +add (8) g6<1>F g6<8,8,1>F g3.28<0,1,0>F { align1 }; +add (8) g7<1>F g7<8,8,1>F g3.28<0,1,0>F { align1 }; + /* sampler */ +mov (8) m1<1>F g4<8,8,1>F { align1 }; +mov (8) m2<1>F g5<8,8,1>F { align1 }; +mov (8) m3<1>F g6<8,8,1>F { align1 }; +mov (8) m4<1>F g7<8,8,1>F { align1 }; + + /* + * g0 holds the PS thread payload, which (oddly) contains + * precisely what the sampler wants to see in m0 + */ +send (16) 0 g12<1>UW g0<8,8,1>UW sampler (1,0,F) mlen 5 rlen 8 { align1 }; +mov (8) g19<1>UW g19<8,8,1>UW { align1 }; + + /* color space conversion function: + * R = Clamp ( 1.164(Y-16/255) + 1.596(Cr-128/255), 0, 1) + * G = Clamp ( 1.164(Y-16/255) - 0.813(Cr-128/255) - 0.392(Cb-128/255), 0, 1) + * B = Clamp ( 1.164(Y-16/255) + 2.017(Cb-128/255), 0, 1) + * + * Y is g14, g15. + * Cr is g12, g13. + * Cb is g16, g17. + * + * R is g2, g6. + * G is g3, g7. + * B is g4, g8. + */ + /* Y = Y - 16/255 */ +add (8) g14<1>F g14<8,8,1>F -0.0627451F { align1 }; + /* Cr = Cr - 128/255 */ +add (8) g12<1>F g12<8,8,1>F -0.501961F { align1 }; + /* Cb = Cb - 128 / 255 */ +add (8) g16<1>F g16<8,8,1>F -0.501961F { align1 }; + /* Y = Y * 1.164 */ +mul (8) g14<1>F g14<8,8,1>F 1.164F { align1 }; + /* acc = 1.596 * Cr */ +mul (8) null g12<8,8,1>F 1.596F { align1 }; + /* R = acc + Y */ +mac.sat (8) m2<1>F g14<8,8,1>F 1F { align1 }; + /* acc = Cr * -0.813 */ +mul (8) null g12<8,8,1>F -0.813F { align1 }; + /* acc += Cb * -0.392 */ +mac (8) null g16<8,8,1>F -0.392F { align1 }; + /* G = acc + Y */ +mac.sat (8) m3<1>F g14<8,8,1>F 1F { align1 }; + /* acc = Cb * 2.017 */ +mul (8) null g16<8,8,1>F 2.017F { align1 }; + /* B = acc + Y */ +mac.sat (8) m4<1>F g14<8,8,1>F 1F { align1 }; + /* and do it again */ +add (8) g15<1>F g15<8,8,1>F -0.0627451F { align1 }; +add (8) g13<1>F g13<8,8,1>F -0.501961F { align1 }; +add (8) g17<1>F g17<8,8,1>F -0.501961F { align1 }; +mul (8) g15<1>F g15<8,8,1>F 1.164F { align1 }; +mul (8) null g13<8,8,1>F 1.596F { align1 }; +mac.sat (8) m6<1>F g15<8,8,1>F 1F { align1 }; +mul (8) null g13<8,8,1>F -0.813F { align1 }; +mac (8) null g17<8,8,1>F -0.392F { align1 }; +mac.sat (8) m7<1>F g15<8,8,1>F 1F { align1 }; +mul (8) null g17<8,8,1>F 2.017F { align1 }; +mac.sat (8) m8<1>F g15<8,8,1>F 1F { align1 }; + + /* Pass through control information: + */ +mov (8) m1<1>UD g1<8,8,1>UD { align1 mask_disable }; + /* Send framebuffer write message: XXX: acc0? */ +send (16) 0 null g0<8,8,1>UW write ( + 0, /* binding table index 0 */ + 8, /* pixel scoreboard clear */ + 4, /* render target write */ + 0 /* no write commit message */ + ) mlen 10 rlen 0 { align1 EOT }; + /* padding */ +nop; +nop; +nop; +nop; +nop; +nop; +nop; +nop; |