X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=source%2Fgles2glide64%2Fsrc%2FGlide64%2Fucode08.h;fp=source%2Fgles2glide64%2Fsrc%2FGlide64%2Fucode08.h;h=6ab6c5456bcefb4b28942f707e1afba5ab15ac69;hb=98e75f2d18c02c233da543560f76282f04fc796c;hp=0000000000000000000000000000000000000000;hpb=0ced54f867d36e8b324155bef49e8abfebfc3237;p=mupen64plus-pandora.git diff --git a/source/gles2glide64/src/Glide64/ucode08.h b/source/gles2glide64/src/Glide64/ucode08.h new file mode 100755 index 0000000..6ab6c54 --- /dev/null +++ b/source/gles2glide64/src/Glide64/ucode08.h @@ -0,0 +1,626 @@ +/* +* Glide64 - Glide video plugin for Nintendo 64 emulators. +* Copyright (c) 2002 Dave2001 +* Copyright (c) 2003-2009 Sergey 'Gonetz' Lipski +* +* This program is free software; you can redistribute it and/or modify +* it under the terms of the GNU General Public License as published by +* the Free Software Foundation; either version 2 of the License, or +* any later version. +* +* This program is distributed in the hope that it will be useful, +* but WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +* GNU General Public License for more details. +* +* You should have received a copy of the GNU General Public License +* along with this program; if not, write to the Free Software +* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + +//**************************************************************** +// +// Glide64 - Glide Plugin for Nintendo 64 emulators +// Project started on December 29th, 2001 +// +// Authors: +// Dave2001, original author, founded the project in 2001, left it in 2002 +// Gugaman, joined the project in 2002, left it in 2002 +// Sergey 'Gonetz' Lipski, joined the project in 2002, main author since fall of 2002 +// Hiroshi 'KoolSmoky' Morii, joined the project in 2007 +// +//**************************************************************** +// +// To modify Glide64: +// * Write your name and (optional)email, commented by your work, so I know who did it, and so that you can find which parts you modified when it comes time to send it to me. +// * Do NOT send me the whole project or file that you modified. Take out your modified code sections, and tell me where to put them. If people sent the whole thing, I would have many different versions, but no idea how to combine them all. +// +//**************************************************************** +// +// January 2004 Created by Gonetz (Gonetz@ngs.ru) +// +//**************************************************************** + +wxUint32 uc8_normale_addr = 0; +float uc8_coord_mod[16]; + +static void uc8_vertex () +{ +Check_FrameSkip; + + if (rdp.update & UPDATE_MULT_MAT) + { + rdp.update ^= UPDATE_MULT_MAT; + MulMatrices(rdp.model, rdp.proj, rdp.combined); + } + + wxUint32 addr = segoffset(rdp.cmd1); + int v0, i, n; + float x, y, z; + + rdp.vn = n = (rdp.cmd0 >> 12) & 0xFF; + rdp.v0 = v0 = ((rdp.cmd0 >> 1) & 0x7F) - n; + + FRDP ("uc8:vertex n: %d, v0: %d, from: %08lx\n", n, v0, addr); + + if (v0 < 0) + { + RDP_E ("** ERROR: uc2:vertex v0 < 0\n"); + LRDP("** ERROR: uc2:vertex v0 < 0\n"); + return; + } + //* + // This is special, not handled in update() + if (rdp.update & UPDATE_LIGHTS) + { + rdp.update ^= UPDATE_LIGHTS; + + // Calculate light vectors + for (wxUint32 l=0; l>4)]; + x = (float)((short*)gfx.RDRAM)[(((addr+i) >> 1) + 0)^1]; + y = (float)((short*)gfx.RDRAM)[(((addr+i) >> 1) + 1)^1]; + z = (float)((short*)gfx.RDRAM)[(((addr+i) >> 1) + 2)^1]; + v->flags = ((wxUint16*)gfx.RDRAM)[(((addr+i) >> 1) + 3)^1]; + v->ou = (float)((short*)gfx.RDRAM)[(((addr+i) >> 1) + 4)^1]; + v->ov = (float)((short*)gfx.RDRAM)[(((addr+i) >> 1) + 5)^1]; + v->uv_scaled = 0; + v->a = ((wxUint8*)gfx.RDRAM)[(addr+i + 15)^3]; + +#ifdef EXTREME_LOGGING + FRDP ("before v%d - x: %f, y: %f, z: %f\n", i>>4, x, y, z); +#endif + #ifdef __ARM_NEON__ + v_xyzw = x*comb0+y*comb1+z*comb2+comb3; + //vst1q_f32((float*)v, v_xyzw); + #else + v->x = x*rdp.combined[0][0] + y*rdp.combined[1][0] + z*rdp.combined[2][0] + rdp.combined[3][0]; + v->y = x*rdp.combined[0][1] + y*rdp.combined[1][1] + z*rdp.combined[2][1] + rdp.combined[3][1]; + v->z = x*rdp.combined[0][2] + y*rdp.combined[1][2] + z*rdp.combined[2][2] + rdp.combined[3][2]; + v->w = x*rdp.combined[0][3] + y*rdp.combined[1][3] + z*rdp.combined[2][3] + rdp.combined[3][3]; + #endif + +#ifdef EXTREME_LOGGING + FRDP ("v%d - x: %f, y: %f, z: %f, w: %f, u: %f, v: %f, flags: %d\n", i>>4, v->x, v->y, v->z, v->w, v->ou, v->ov, v->flags); +#endif + v->uv_calculated = 0xFFFFFFFF; + v->screen_translated = 0; + v->shade_mod = 0; + #ifdef __ARM_NEON__ + v->x=v_xyzw[0]; + v->y=v_xyzw[1]; + v->z=v_xyzw[2]; + v->w=v_xyzw[3]; + #endif + + ///* + v->r = ((wxUint8*)gfx.RDRAM)[(addr+i + 12)^3]; + v->g = ((wxUint8*)gfx.RDRAM)[(addr+i + 13)^3]; + v->b = ((wxUint8*)gfx.RDRAM)[(addr+i + 14)^3]; + + if (fabs(v->w) < 0.001) v->w = 0.001f; + v->oow = 1.0f / v->w; + #ifdef __ARM_NEON__ + v_xyzw *= v->oow; + v->x_w=v_xyzw[0]; + v->y_w=v_xyzw[1]; + v->z_w=v_xyzw[2]; + #else + v->x_w = v->x * v->oow; + v->y_w = v->y * v->oow; + v->z_w = v->z * v->oow; + #endif + + v->scr_off = 0; + if (v->x < -v->w) v->scr_off |= 1; + if (v->x > v->w) v->scr_off |= 2; + if (v->y < -v->w) v->scr_off |= 4; + if (v->y > v->w) v->scr_off |= 8; + if (v->w < 0.1f) v->scr_off |= 16; +#ifdef EXTREME_LOGGING + FRDP ("r: %02lx, g: %02lx, b: %02lx, a: %02lx\n", v->r, v->g, v->b, v->a); +#endif + + if ((rdp.geom_mode & 0x00020000)) + { + wxUint32 shift = v0 << 1; + v->vec[0] = ((char*)gfx.RDRAM)[(uc8_normale_addr + (i>>3) + shift + 0)^3]; + v->vec[1] = ((char*)gfx.RDRAM)[(uc8_normale_addr + (i>>3) + shift + 1)^3]; + v->vec[2] = (char)(v->flags&0xff); + + if (rdp.geom_mode & 0x80000) + { + calc_linear (v); +#ifdef EXTREME_LOGGING + FRDP ("calc linear: v%d - u: %f, v: %f\n", i>>4, v->ou, v->ov); +#endif + } + else if (rdp.geom_mode & 0x40000) + { + calc_sphere (v); +#ifdef EXTREME_LOGGING + FRDP ("calc sphere: v%d - u: %f, v: %f\n", i>>4, v->ou, v->ov); +#endif + } + // FRDP("calc light. r: 0x%02lx, g: 0x%02lx, b: 0x%02lx, nx: %.3f, ny: %.3f, nz: %.3f\n", v->r, v->g, v->b, v->vec[0], v->vec[1], v->vec[2]); + FRDP("v[%d] calc light. r: 0x%02lx, g: 0x%02lx, b: 0x%02lx\n", i>>4, v->r, v->g, v->b); + #ifdef __ARM_NEON__ + float32x4_t color = {rdp.light[rdp.num_lights].r, rdp.light[rdp.num_lights].g, rdp.light[rdp.num_lights].b, 1.0f}; + #else + float color[3] = {rdp.light[rdp.num_lights].r, rdp.light[rdp.num_lights].g, rdp.light[rdp.num_lights].b}; + #endif + FRDP("ambient light. r: %f, g: %f, b: %f\n", color[0], color[1], color[2]); + float light_intensity = 0.0f; + wxUint32 l; + if (rdp.geom_mode & 0x00400000) + { + NormalizeVector (v->vec); + for (l = 0; l < rdp.num_lights-1; l++) + { + if (!rdp.light[l].nonblack) + continue; + light_intensity = DotProduct (rdp.light_vector[l], v->vec); + FRDP("light %d, intensity : %f\n", l, light_intensity); + if (light_intensity < 0.0f) + continue; + //* + if (rdp.light[l].ca > 0.0f) + { + #ifdef __ARM_NEON__ + float32x4_t vxyzw = (v_xyzw + uc8_8_11)*uc8_12_15 - rdplight[l]; + vxyzw = vxyzw*vxyzw; + float invlen = 65536.0f/(vxyzw[0]+vxyzw[1]+vxyzw[2]+vxyzw[3]); + float p_i = rdp.light[l].ca * invlen; + #else + float vx = (v->x + uc8_coord_mod[8])*uc8_coord_mod[12] - rdp.light[l].x; + float vy = (v->y + uc8_coord_mod[9])*uc8_coord_mod[13] - rdp.light[l].y; + float vz = (v->z + uc8_coord_mod[10])*uc8_coord_mod[14] - rdp.light[l].z; + float vw = (v->w + uc8_coord_mod[11])*uc8_coord_mod[15] - rdp.light[l].w; + float len = (vx*vx+vy*vy+vz*vz+vw*vw)/65536.0f; + float p_i = rdp.light[l].ca / len; + #endif + if (p_i > 1.0f) p_i = 1.0f; + light_intensity *= p_i; + #if __ARM_NEON__ + FRDP("light %d, 1/len: %f, p_intensity : %f\n", l, invlen, p_i); + #else + FRDP("light %d, len: %f, p_intensity : %f\n", l, len, p_i); + #endif + } + //*/ + #ifdef __ARM_NEON__ + color += rdpcolor[l] * light_intensity; + #else + color[0] += rdp.light[l].r * light_intensity; + color[1] += rdp.light[l].g * light_intensity; + color[2] += rdp.light[l].b * light_intensity; + #endif + FRDP("light %d r: %f, g: %f, b: %f\n", l, color[0], color[1], color[2]); + } + light_intensity = DotProduct (rdp.light_vector[l], v->vec); + FRDP("light %d, intensity : %f\n", l, light_intensity); + if (light_intensity > 0.0f) + { + #ifdef __ARM_NEON__ + color += rdpcolor[l] * light_intensity; + #else + color[0] += rdp.light[l].r * light_intensity; + color[1] += rdp.light[l].g * light_intensity; + color[2] += rdp.light[l].b * light_intensity; + #endif + } + FRDP("light %d r: %f, g: %f, b: %f\n", l, color[0], color[1], color[2]); + } + else + { + for (l = 0; l < rdp.num_lights; l++) + { + if (rdp.light[l].nonblack && rdp.light[l].nonzero) + { + #ifdef __ARM_NEON__ + float32x4_t vxyzw = (v_xyzw + uc8_8_11)*uc8_12_15 - rdplight[l]; + vxyzw = vxyzw*vxyzw; + float invlen = 65536.0f/(vxyzw[0]+vxyzw[1]+vxyzw[2]+vxyzw[3]); + light_intensity = rdp.light[l].ca * invlen; + #else + float vx = (v->x + uc8_coord_mod[8])*uc8_coord_mod[12] - rdp.light[l].x; + float vy = (v->y + uc8_coord_mod[9])*uc8_coord_mod[13] - rdp.light[l].y; + float vz = (v->z + uc8_coord_mod[10])*uc8_coord_mod[14] - rdp.light[l].z; + float vw = (v->w + uc8_coord_mod[11])*uc8_coord_mod[15] - rdp.light[l].w; + float len = (vx*vx+vy*vy+vz*vz+vw*vw)/65536.0f; + light_intensity = rdp.light[l].ca / len; + #endif + if (light_intensity > 1.0f) light_intensity = 1.0f; + FRDP("light %d, p_intensity : %f\n", l, light_intensity); + #ifdef __ARM_NEON__ + color += rdpcolor[l] * light_intensity; + #else + color[0] += rdp.light[l].r * light_intensity; + color[1] += rdp.light[l].g * light_intensity; + color[2] += rdp.light[l].b * light_intensity; + #endif + //FRDP("light %d r: %f, g: %f, b: %f\n", l, color[0], color[1], color[2]); + } + } + } + #ifdef __ARM_NEON__ + color = vminq_f32(color, unite); + #else + if (color[0] > 1.0f) color[0] = 1.0f; + if (color[1] > 1.0f) color[1] = 1.0f; + if (color[2] > 1.0f) color[2] = 1.0f; + #endif + v->r = (wxUint8)(((float)v->r)*color[0]); + v->g = (wxUint8)(((float)v->g)*color[1]); + v->b = (wxUint8)(((float)v->b)*color[2]); +#ifdef EXTREME_LOGGING + FRDP("color after light: r: 0x%02lx, g: 0x%02lx, b: 0x%02lx\n", v->r, v->g, v->b); +#endif + } + } +} + +static void uc8_moveword () +{ + wxUint8 index = (wxUint8)((rdp.cmd0 >> 16) & 0xFF); + wxUint16 offset = (wxUint16)(rdp.cmd0 & 0xFFFF); + wxUint32 data = rdp.cmd1; + + FRDP ("uc8:moveword "); + + switch (index) + { + // NOTE: right now it's assuming that it sets the integer part first. This could + // be easily fixed, but only if i had something to test with. + + case 0x02: + rdp.num_lights = (data / 48); + rdp.update |= UPDATE_LIGHTS; + FRDP ("numlights: %d\n", rdp.num_lights); + break; + + case 0x04: + if (offset == 0x04) + { + rdp.clip_ratio = sqrt((float)rdp.cmd1); + rdp.update |= UPDATE_VIEWPORT; + } + FRDP ("mw_clip %08lx, %08lx\n", rdp.cmd0, rdp.cmd1); + break; + + case 0x06: // moveword SEGMENT + { + FRDP ("SEGMENT %08lx -> seg%d\n", data, offset >> 2); + rdp.segment[(offset >> 2) & 0xF] = data; + } + break; + + case 0x08: + { + rdp.fog_multiplier = (short)(rdp.cmd1 >> 16); + rdp.fog_offset = (short)(rdp.cmd1 & 0x0000FFFF); + FRDP ("fog: multiplier: %f, offset: %f\n", rdp.fog_multiplier, rdp.fog_offset); + } + break; + + case 0x0c: + RDP_E ("uc8:moveword forcemtx - IGNORED\n"); + LRDP("forcemtx - IGNORED\n"); + break; + + case 0x0e: + LRDP("perspnorm - IGNORED\n"); + break; + + case 0x10: // moveword coord mod + { + wxUint8 n = offset >> 2; + + FRDP ("coord mod:%d, %08lx\n", n, data); + if (rdp.cmd0&8) + return; + wxUint32 idx = (rdp.cmd0>>1)&3; + wxUint32 pos = rdp.cmd0&0x30; + if (pos == 0) + { + uc8_coord_mod[0+idx] = (short)(rdp.cmd1>>16); + uc8_coord_mod[1+idx] = (short)(rdp.cmd1&0xffff); + } + else if (pos == 0x10) + { + uc8_coord_mod[4+idx] = (rdp.cmd1>>16)/65536.0f; + uc8_coord_mod[5+idx] = (rdp.cmd1&0xffff)/65536.0f; + uc8_coord_mod[12+idx] = uc8_coord_mod[0+idx] + uc8_coord_mod[4+idx]; + uc8_coord_mod[13+idx] = uc8_coord_mod[1+idx] + uc8_coord_mod[5+idx]; + + } + else if (pos == 0x20) + { + uc8_coord_mod[8+idx] = (short)(rdp.cmd1>>16); + uc8_coord_mod[9+idx] = (short)(rdp.cmd1&0xffff); +#ifdef EXTREME_LOGGING + if (idx) + { + for (int k = 8; k < 16; k++) + { + FRDP("coord_mod[%d]=%f\n", k, uc8_coord_mod[k]); + } + } +#endif + } + + } + break; + + default: + FRDP_E("uc8:moveword unknown (index: 0x%08lx, offset 0x%08lx)\n", index, offset); + FRDP ("unknown (index: 0x%08lx, offset 0x%08lx)\n", index, offset); + } +} + +static void uc8_movemem () +{ + int idx = rdp.cmd0 & 0xFF; + wxUint32 addr = segoffset(rdp.cmd1); + int ofs = (rdp.cmd0 >> 5) & 0x3FFF; + + FRDP ("uc8:movemem ofs:%d ", ofs); + + switch (idx) + { + case 8: // VIEWPORT + { + wxUint32 a = addr >> 1; + short scale_x = ((short*)gfx.RDRAM)[(a+0)^1] >> 2; + short scale_y = ((short*)gfx.RDRAM)[(a+1)^1] >> 2; + short scale_z = ((short*)gfx.RDRAM)[(a+2)^1]; + short trans_x = ((short*)gfx.RDRAM)[(a+4)^1] >> 2; + short trans_y = ((short*)gfx.RDRAM)[(a+5)^1] >> 2; + short trans_z = ((short*)gfx.RDRAM)[(a+6)^1]; + rdp.view_scale[0] = scale_x * rdp.scale_x; + rdp.view_scale[1] = -scale_y * rdp.scale_y; + rdp.view_scale[2] = 32.0f * scale_z; + rdp.view_trans[0] = trans_x * rdp.scale_x; + rdp.view_trans[1] = trans_y * rdp.scale_y; + rdp.view_trans[2] = 32.0f * trans_z; + + rdp.update |= UPDATE_VIEWPORT; + + FRDP ("viewport scale(%d, %d), trans(%d, %d), from:%08lx\n", scale_x, scale_y, + trans_x, trans_y, a); + } + break; + + case 10: // LIGHT + { + int n = (ofs / 48); + if (n < 2) + { + char dir_x = ((char*)gfx.RDRAM)[(addr+8)^3]; + rdp.lookat[n][0] = (float)(dir_x) / 127.0f; + char dir_y = ((char*)gfx.RDRAM)[(addr+9)^3]; + rdp.lookat[n][1] = (float)(dir_y) / 127.0f; + char dir_z = ((char*)gfx.RDRAM)[(addr+10)^3]; + rdp.lookat[n][2] = (float)(dir_z) / 127.0f; + rdp.use_lookat = TRUE; + if (n == 1) + { + if (!dir_x && !dir_y) + rdp.use_lookat = FALSE; + } + FRDP("lookat_%d (%f, %f, %f)\n", n, rdp.lookat[n][0], rdp.lookat[n][1], rdp.lookat[n][2]); + return; + } + n -= 2; + wxUint8 col = gfx.RDRAM[(addr+0)^3]; + rdp.light[n].r = (float)col / 255.0f; + rdp.light[n].nonblack = col; + col = gfx.RDRAM[(addr+1)^3]; + rdp.light[n].g = (float)col / 255.0f; + rdp.light[n].nonblack += col; + col = gfx.RDRAM[(addr+2)^3]; + rdp.light[n].b = (float)col / 255.0f; + rdp.light[n].nonblack += col; + rdp.light[n].a = 1.0f; + rdp.light[n].dir_x = (float)(((char*)gfx.RDRAM)[(addr+8)^3]) / 127.0f; + rdp.light[n].dir_y = (float)(((char*)gfx.RDRAM)[(addr+9)^3]) / 127.0f; + rdp.light[n].dir_z = (float)(((char*)gfx.RDRAM)[(addr+10)^3]) / 127.0f; + // ** + wxUint32 a = addr >> 1; + rdp.light[n].x = (float)(((short*)gfx.RDRAM)[(a+16)^1]); + rdp.light[n].y = (float)(((short*)gfx.RDRAM)[(a+17)^1]); + rdp.light[n].z = (float)(((short*)gfx.RDRAM)[(a+18)^1]); + rdp.light[n].w = (float)(((short*)gfx.RDRAM)[(a+19)^1]); + rdp.light[n].nonzero = gfx.RDRAM[(addr+12)^3]; + rdp.light[n].ca = (float)rdp.light[n].nonzero / 16.0f; + //rdp.light[n].la = rdp.light[n].ca * 1.0f; +#ifdef EXTREME_LOGGING + FRDP ("light: n: %d, pos: x: %f, y: %f, z: %f, w: %f, ca: %f\n", + n, rdp.light[n].x, rdp.light[n].y, rdp.light[n].z, rdp.light[n].w, rdp.light[n].ca); +#endif + FRDP ("light: n: %d, r: %f, g: %f, b: %f. dir: x: %.3f, y: %.3f, z: %.3f\n", + n, rdp.light[n].r, rdp.light[n].g, rdp.light[n].b, + rdp.light[n].dir_x, rdp.light[n].dir_y, rdp.light[n].dir_z); +#ifdef EXTREME_LOGGING + for (int t=0; t < 24; t++) + { + FRDP ("light[%d] = 0x%04lx \n", t, ((wxUint16*)gfx.RDRAM)[(a+t)^1]); + } +#endif + } + break; + + case 14: //Normales + { + uc8_normale_addr = segoffset(rdp.cmd1); + FRDP ("Normale - addr: %08lx\n", uc8_normale_addr); +#ifdef EXTREME_LOGGING + int i; + for (i = 0; i < 32; i++) + { + char x = ((char*)gfx.RDRAM)[uc8_normale_addr + ((i<<1) + 0)^3]; + char y = ((char*)gfx.RDRAM)[uc8_normale_addr + ((i<<1) + 1)^3]; + FRDP("#%d x = %d, y = %d\n", i, x, y); + } + wxUint32 a = uc8_normale_addr >> 1; + for (i = 0; i < 32; i++) + { + FRDP ("n[%d] = 0x%04lx \n", i, ((wxUint16*)gfx.RDRAM)[(a+i)^1]); + } +#endif + } + break; + + default: + FRDP ("uc8:movemem unknown (%d)\n", idx); + } +} + + +static void uc8_tri4() //by Gugaman Apr 19 2002 +{ +Check_FrameSkip; + + if (rdp.skip_drawing) + { + LRDP("uc8:tri4. skipped\n"); + return; + } + + FRDP("uc8:tri4 (#%d - #%d), %d-%d-%d, %d-%d-%d, %d-%d-%d, %d-%d-%d\n", + rdp.tri_n, + rdp.tri_n+3, + ((rdp.cmd0 >> 23) & 0x1F), + ((rdp.cmd0 >> 18) & 0x1F), + ((((rdp.cmd0 >> 15) & 0x7) << 2) | ((rdp.cmd1 >> 30) &0x3)), + ((rdp.cmd0 >> 10) & 0x1F), + ((rdp.cmd0 >> 5) & 0x1F), + ((rdp.cmd0 >> 0) & 0x1F), + ((rdp.cmd1 >> 25) & 0x1F), + ((rdp.cmd1 >> 20) & 0x1F), + ((rdp.cmd1 >> 15) & 0x1F), + ((rdp.cmd1 >> 10) & 0x1F), + ((rdp.cmd1 >> 5) & 0x1F), + ((rdp.cmd1 >> 0) & 0x1F)); + + VERTEX *v[12] = { + &rdp.vtx[(rdp.cmd0 >> 23) & 0x1F], + &rdp.vtx[(rdp.cmd0 >> 18) & 0x1F], + &rdp.vtx[((((rdp.cmd0 >> 15) & 0x7) << 2) | ((rdp.cmd1 >> 30) &0x3))], + &rdp.vtx[(rdp.cmd0 >> 10) & 0x1F], + &rdp.vtx[(rdp.cmd0 >> 5) & 0x1F], + &rdp.vtx[(rdp.cmd0 >> 0) & 0x1F], + &rdp.vtx[(rdp.cmd1 >> 25) & 0x1F], + &rdp.vtx[(rdp.cmd1 >> 20) & 0x1F], + &rdp.vtx[(rdp.cmd1 >> 15) & 0x1F], + &rdp.vtx[(rdp.cmd1 >> 10) & 0x1F], + &rdp.vtx[(rdp.cmd1 >> 5) & 0x1F], + &rdp.vtx[(rdp.cmd1 >> 0) & 0x1F] + }; + + int updated = 0; + + if (cull_tri(v)) + rdp.tri_n ++; + else + { + updated = 1; + update (); + + draw_tri (v); + rdp.tri_n ++; + } + + if (cull_tri(v+3)) + rdp.tri_n ++; + else + { + if (!updated) + { + updated = 1; + update (); + } + + draw_tri (v+3); + rdp.tri_n ++; + } + + if (cull_tri(v+6)) + rdp.tri_n ++; + else + { + if (!updated) + { + updated = 1; + update (); + } + + draw_tri (v+6); + rdp.tri_n ++; + } + + if (cull_tri(v+9)) + rdp.tri_n ++; + else + { + if (!updated) + { + updated = 1; + update (); + } + + draw_tri (v+9); + rdp.tri_n ++; + } +}