X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=source%2Frice_gles%2Fsrc%2FRenderBase_neon.S;fp=source%2Frice_gles%2Fsrc%2FRenderBase_neon.S;h=da769c7a99039f0f6e6a7868be0decc69d8ec9c9;hb=48d77f736bea02afeb362cff05c81375752b3015;hp=0000000000000000000000000000000000000000;hpb=f18a2655e53ab6340888091f0e7ee0d1ec62d8d1;p=mupen64plus-pandora.git diff --git a/source/rice_gles/src/RenderBase_neon.S b/source/rice_gles/src/RenderBase_neon.S new file mode 100644 index 0000000..da769c7 --- /dev/null +++ b/source/rice_gles/src/RenderBase_neon.S @@ -0,0 +1,339 @@ +/* + * (C) Gražvydas "notaz" Ignotas, 2014 + * + * This work is licensed under the terms of GNU GPL version 2 or later. + * See the COPYING file in the top-level directory. + */ + +#include "arm_features.h" +#include "RenderBase_neon.h" + +.syntax unified +.text +.align 3 + +/* + * ProcessVertexData register map: + * + * q | d | c code + * ... + * 12 24 gRSPworldProject _11,_12,_13,_14 + * 25 + * 13 26 gRSPworldProject _21,_22,_23,_24 + * 27 + * 14 28 gRSPworldProject _31,_32,_33,_34 + * 29 + * 15 30 gRSPworldProject _41,_42,_43,_44 + * 31 + * + * r4 vtx[], 16 bytes: + * short y, x, flag, z, tv, tu; + * / uint8 a, b, g, r; + * \ char a, z, y, x; + * + * outputs: + * r0 - XVECTOR4 *g_vtxTransformed + * r1 - XVECTOR4 *g_vecProjected + * r2 - uint32 *g_dwVtxDifColor + * r3 - VECTOR2 *g_fVtxTxtCoords + * sp+00 - float *g_fFogCoord + * r6 sp+04 - uint32 *g_clipFlag2 + * inputs: + * r11 sp+08 - uint32 dwNum + * r10 sp+0c - int neon_flags + * r4 sp+10 - FiddledVtx vtx[], (r4 [0], r5 [1]) + * r7 sp+14 - Light *gRSPlights + * sp+18 - float *fRSPAmbientLightRGBA + * sp+1c - XMATRIX *gRSPworldProject + * sp+20 - XMATRIX *gRSPmodelViewTop + * sp+24 - uint32 gRSPnumLights + * sp+28 - float gRSPfFogMin + * sp+2c - uint32 primitiveColor + * sp+30 - uint32 primitiveColor + */ +FUNCTION(pv_neon): + ldr r12, [sp, #0x10] + pld [r12] + + push {r4-r11,lr} + vpush {q4-q7} + + mov r4, r12 @ vtx + ldr r12, [sp, #0x64+0x1c] + vld1.32 {q12,q13}, [r12, :128]! @ load gRSPworldProject + vld1.32 {q14,q15}, [r12, :128] + ldr r6, [sp, #0x64+0x04] @ g_clipFlag2 + add r5, r4, #16 @ vtx + 1 + ldr r11, [sp, #0x64+0x08] @ dwNum + ldr r10, [sp, #0x64+0x0c] @ neon_flags + +0: + vld1.16 d12, [r4]! @ vtx[0] .z .flag .x .y (reg) + vmovl.s16 q6, d12 + vld1.16 d14, [r5]! @ vtx[1] .z .flag .x .y + vmovl.s16 q7, d14 + vcvt.f32.s32 q6, q6 @ q6 = vtx_raw0 + vcvt.f32.s32 q7, q7 @ q7 = vtx_raw1 + vdup.32 q0, d12[1] @ vtx_raw0.x (dup) + vdup.32 q1, d12[0] @ vtx_raw0.y (dup) + vdup.32 q2, d13[1] @ vtx_raw0.z (dup) + vdup.32 q3, d14[1] @ vtx_raw1.x (dup) + vdup.32 q4, d14[0] @ vtx_raw1.y (dup) + vdup.32 q5, d15[1] @ vtx_raw1.z (dup) + /* note: order of operations matters greatly, + * may cause like 20 fraction bits to differ! */ + vmul.f32 q0, q0, q12 + vmul.f32 q3, q3, q12 + vmla.f32 q0, q1, q13 + vmla.f32 q3, q4, q13 + vmul.f32 q2, q2, q14 @ yes, mul+add is + vmul.f32 q5, q5, q14 @ faster than mla + vadd.f32 q0, q2 + vadd.f32 q3, q5 + vadd.f32 q0, q15 @ q0 = g_vtxTransformed[i] + vadd.f32 q3, q15 @ q3 = g_vtxTransformed[i + 1] + + vld1.16 d16[1], [r4]! @ [0].v + vmov d2, d1 + vld1.16 d16[0], [r4]! @ [0].u + vsri.64 d2, d7, #32 + vld1.16 d18[1], [r5]! @ [0].v +#if 1 + vrecpe.f32 d4, d2 @ inv [0][1] .w + vld1.16 d18[0], [r5]! @ [0].u + vrecps.f32 d5, d2, d4 @ step + vmovl.s16 q8, d16 + /* g_vtxTransformed[0] */ vst1.32 {q0}, [r0, :128]! + vmovl.s16 q9, d18 + vcvt.f32.s32 d16, d16 + vcvt.f32.s32 d18, d18 + vmul.f32 d4, d5, d4 @ better inv + bic r9, r5, #63 + pld [r9, #64] + vrecps.f32 d5, d2, d4 @ step + cmp r11, #1 + /* u,v g_fVtxTxtCoords[0] */ vst1.32 {d16}, [r3]! + beq 99f + /* g_vtxTransformed[1] */ vst1.32 {q3}, [r0, :128]! + /* ... [1] */ vst1.32 {d18}, [r3]! + 99: + vmov.f32 d20, #1.0 + vmov.f32 d21, #-1.0 + vmul.f32 d4, d5, d4 @ better inv [0][1] .w + #if 0 + vrecps.f32 d5, d2, d4 @ step + vmul.f32 d4, d5, d4 @ better inv + #endif +#else + mov r12, #0x3f800000 @ 1.0f + vmov.f32 s6, r12 + vdiv.f32 s8, s6, s4 + vdiv.f32 s9, s6, s5 + #error incomplete +#endif + + mov r8, #X_CLIP_MAX + mov r9, #Y_CLIP_MAX + vmov d22, r8, r9 + vmul.f32 q0, q0, d4[1] @ .x .y .z .w *= [0] .w + vmul.f32 q1, q3, d4[0] + vshr.u64 d5, d4, #32 @ [0] .w + mov r8, #X_CLIP_MIN + mov r9, #Y_CLIP_MIN + vmov d23, r8, r9 + vsli.64 d3, d4, #32 @ insert [1] .w + vsli.64 d1, d5, #32 + vsli.u64 d5, d4, #32 @ [0] [1] .w + vcgt.f32 d6, d0, d20 @ .xy > 1.0? + vcgt.f32 d7, d21, d0 + vcgt.f32 d4, d5, #0 @ .w > 0? + vst1.32 {q0}, [r1]! @ g_vecProjected[0] + vcgt.f32 d8, d2, d20 + vcgt.f32 d9, d21, d2 + vld1.32 d0[0], [r4]! @ mem: [0] .azyx + vand q3, q11 + vand q4, q11 + cmp r11, #1 + beq 99f + vst1.32 {q1}, [r1]! @ g_vecProjected[1] +99: + vorr d6, d6, d7 + vorr d7, d8, d9 + vld1.32 d0[1], [r5]! @ mem: [1] .azyx + vpadd.u32 d6, d7 + vrev32.8 d0, d0 @ make 0xaazzyyxx [1][0] + vsli.u64 d1, d3, #32 @ d3 = [1] [0] .z + vmovl.s8 q4, d0 + vand d6, d4 + vmovl.s16 q1, d8 + vmovl.s16 q2, d9 + vst1.32 {d6}, [r6]! @ g_clipFlag2 + + tst r10, #PV_NEON_ENABLE_LIGHT + beq pv_neon_no_light +@ pv_neon_light: + @ live NEON registers: + @ d1 = [1][0] .z (must preserve) + @ q1,q2 = azyx [1][0] + @ q12+ = gRSPworldProject + ldr r12, [sp, #0x64+0x20] + vcvt.f32.s32 q1, q1 + vcvt.f32.s32 q2, q2 + vld1.32 {q8,q9}, [r12, :128]! @ load gRSPmodelViewTop + vld1.32 {q10}, [r12, :128] + + vdup.32 q5, d4[0] @ [1] .x (dup) + vdup.32 q6, d4[1] @ [1] .y (dup) + vdup.32 q7, d5[0] @ [1] .z (dup) + vdup.32 q2, d2[0] @ [0] .x (dup) + vdup.32 q3, d2[1] @ [0] .y (dup) + vdup.32 q4, d3[0] @ [0] .z (dup) + vmul.f32 q2, q2, q8 + vmul.f32 q5, q5, q8 + vmla.f32 q2, q3, q9 + vmla.f32 q5, q6, q9 + vmul.f32 q4, q4, q10 + vmul.f32 q7, q7, q10 + vadd.f32 q4, q2 @ q4 = temp[0] .xyz0 + vadd.f32 q5, q7 @ q5 = temp[1] .xyz0 + vmul.f32 q2, q4, q4 @ temp .xyz0 ^2 + vmul.f32 q3, q5, q5 + vpadd.f32 d2, d4, d5 + vpadd.f32 d3, d6, d7 + movw r8, #0x0000ffff + movt r8, #0x7f7f @ max normal float, ~3.4e+38 + vdup.32 d4, r8 + vpadd.f32 d2, d2, d3 @ d2 = [1][0] x^2 + y^2 + z^2 + vcgt.f32 d5, d2, #0 + vbif d2, d4, d5 @ if (d2 == 0) d2 = MAXFLOAT + + vrsqrte.f32 d3, d2 @ ~ 1/sqrt(d2), d2 = [1][0] .sqrsum + vmul.f32 d4, d3, d2 + ldr r9, [sp, #0x64+0x18] @ &fRSPAmbientLightRGBA + ldr r7, [sp, #0x64+0x14] @ gRSPlights + ldr r8, [sp, #0x64+0x24] @ gRSPnumLights + vrsqrts.f32 d4, d3, d4 @ step + vld1.32 {q6}, [r9] @ rgb + vld1.32 {q7}, [r9] @ rgb + vmul.f32 d3, d3, d4 @ 1/sqrt(d2) +#if 0 /* not necessary? */ + vmul.f32 d4, d3, d2 + vrsqrts.f32 d4, d3, d4 @ step + vmul.f32 d3, d3, d4 @ 1/sqrt(d2) +#endif + vmul.f32 q2, q4, d3[0] @ q2 = normal[0] .xyz + vmul.f32 q3, q5, d3[1] @ q3 = normal[1] .xyz + +1: + vld1.32 {q8}, [r7] + vmul.f32 q4, q8, q2 @ gRSPlights[l] * normal + vmul.f32 q5, q8, q3 + vpadd.f32 d8, d8, d9 + vpadd.f32 d10, d10, d11 + vpadd.f32 d8, d8, d10 @ d8 = [1][0] fCosT + vcgt.f32 d9, d8, #0 @ if (!(fCosT > 0)) + vand d8, d9 @ fCosT = 0 + add r9, r7, #OFFSETOF_Light_fr + vld1.32 {q8}, [r9] @ .fr .fg .fb + vdup.32 q5, d8[1] @ [1] fCosT (dup) + vdup.32 q4, d8[0] @ + vmla.f32 q7, q8, q5 @ .rgb += frgb * fCosT + vmla.f32 q6, q8, q4 + add r7, #SIZEOF_Light + subs r8, #1 + bgt 1b + + movt r8, #0x437f @ float 255 + vdup.32 q8, r8 + vcgt.f32 q4, q6, q8 @ if (.rgb > 255) + vcgt.f32 q5, q7, q8 + vbit q6, q8, q4 @ .rgb = 255 + vbit q7, q8, q5 + vcvt.u32.f32 q6, q6 + vcvt.u32.f32 q7, q7 + ldrb r8, [r4, #-4] @ .a from vtx + ldrb r9, [r5, #-4] + vext.32 q4, q6, q6, #3 @ reg: .abgr -> .bgra + vext.32 q5, q7, q7, #3 + vmov.32 d8[0], r8 @ use .a from input + vmov.32 d10[0], r9 + vmovn.u32 d8, q4 + vmovn.u32 d10, q5 + vmovn.u16 d0, q4 + vmovn.u16 d2, q5 + vsli.u64 d0, d2, #32 + vrev32.8 d0, d0 @ 0xbbggrraa -> 0xaarrggbb + b pv_neon_fog_alpha + +pv_neon_no_light: + tst r10, #PV_NEON_ENABLE_SHADE + vldr d0, [sp, #0x64+0x2c] @ primitiveColor [0] [1] + beq pv_neon_fog_alpha + @ easier to do with ARM + ldr r8, [r4, #-4] + ldr r9, [r5, #-4] + ror r8, #8 @ mem: .argb -> .rgba + ror r9, #8 @ reg: 0xbbggrraa -> .. + vmov d0, r8, r9 + +pv_neon_fog_alpha: + tst r10, #PV_NEON_FOG_ALPHA + beq pv_neon_next + vmov.f32 d20, #1.0 + vcgt.f32 d2, d1, d20 @ [0] [1] .z > 1.0? + vcgt.f32 d3, d1, #0 @ > 0? + movw r8, #0 + movt r8, #0x4f7f @ r8 = (float)(255<<24) + vbit d1, d20, d2 @ make 1.0 if needed + vand d1, d3 + vdup.32 d4, r8 + vmul.f32 d1, d1, d4 + vcvt.u32.f32 d1, d1 + vmov.u32 d5, #0xff000000 + vbit d0, d1, d5 + +pv_neon_next: + subs r11, #2 + vst1.32 {d0}, [r2]! @ g_dwVtxDifColor + add r4, #16 + add r5, #16 + bgt 0b + nop + + vpop {q4-q7} + pop {r4-r11,pc} + .size pv_neon, .-pv_neon + + +@ (float *d, const float *m1, const float *m2, const float *s) +FUNCTION(multiply_subtract2): + vld1.32 {d1}, [r1] + vld1.32 {d2}, [r2] + vmul.f32 d0, d1, d2 + vld1.32 {d3}, [r3] + vsub.f32 d0, d3 + vst1.32 {d0}, [r0] + bx lr + .size multiply_subtract2, .-multiply_subtract2 + + +@ (const XVECTOR4 *v0, const XVECTOR4 *v1, const XVECTOR4 *v2) +FUNCTION(tv_direction): + vld1.32 {q0}, [r0] + vld1.32 {q2}, [r2] + vld1.32 {q1}, [r1] + vsub.f32 d6, d4, d0 @ d6 = V2,V1 + vsub.f32 d7, d4, d2 @ d7 = W2,W1 + vmul.f32 d1, d5 @ d1 = v0.w * v2.w + vrev64.32 d7, d7 + vmul.f32 d6, d7 @ d6 = V2*W1,V1*W2 + vmul.f32 d1, d3 @ d1 *= v1.w + vshr.u64 d7, d6, #32 + vsub.f32 d6, d7 @ d6[0] = V1*W2 - V2*W1 + vshr.u64 d1, d1, #32 + vmul.f32 d0, d1, d6 + vmov.32 r0, d0[0] + bx lr + + +@ vim:filetype=armasm:expandtab