dos3d
changeset 9:bce78aaafc68
foo
| author | John Tsiombikas <nuclear@member.fsf.org> |
|---|---|
| date | Sat, 26 Nov 2011 03:59:48 +0200 |
| parents | 569d62294ae3 |
| children | 059bb38506b3 0909996838ff |
| files | dosemu/conio.h dosemu/dosemu.c src/mglgen.c src/mglimpl.h src/mglrast.c src/mingl.c src/mingl.h src/scantmpl.h src/test.c |
| diffstat | 9 files changed, 184 insertions(+), 55 deletions(-) [+] |
line diff
1.1 --- a/dosemu/conio.h Mon Nov 21 12:45:18 2011 +0200 1.2 +++ b/dosemu/conio.h Sat Nov 26 03:59:48 2011 +0200 1.3 @@ -2,6 +2,6 @@ 1.4 #define CONIO_H_ 1.5 1.6 int kbhit(void); 1.7 -char getch(void); 1.8 +int getch(void); 1.9 1.10 #endif /* CONIO_H_ */
2.1 --- a/dosemu/dosemu.c Mon Nov 21 12:45:18 2011 +0200 2.2 +++ b/dosemu/dosemu.c Sat Nov 26 03:59:48 2011 +0200 2.3 @@ -38,16 +38,21 @@ 2.4 void set_video_mode(int mode) 2.5 { 2.6 int resx = 320, resy = 200; 2.7 + unsigned int sdl_flags = SDL_HWPALETTE; 2.8 2.9 if(getenv("DOSEMU_DOUBLESIZE")) { 2.10 resx *= 2; 2.11 resy *= 2; 2.12 } 2.13 2.14 + if(getenv("DOSEMU_FULLSCREEN")) { 2.15 + sdl_flags |= SDL_FULLSCREEN; 2.16 + } 2.17 + 2.18 switch(mode) { 2.19 case 0x13: 2.20 SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER); 2.21 - if(!(fbsurf = SDL_SetVideoMode(resx, resy, 8, SDL_HWPALETTE))) { 2.22 + if(!(fbsurf = SDL_SetVideoMode(resx, resy, 8, sdl_flags))) { 2.23 fprintf(stderr, "failed to set video mode\n"); 2.24 abort(); 2.25 } 2.26 @@ -120,9 +125,9 @@ 2.27 return keybev != 0; 2.28 } 2.29 2.30 -char getch(void) 2.31 +int getch(void) 2.32 { 2.33 - char res; 2.34 + int res; 2.35 2.36 while(!keybev) { 2.37 SDL_Event ev;
3.1 --- a/src/mglgen.c Mon Nov 21 12:45:18 2011 +0200 3.2 +++ b/src/mglgen.c Sat Nov 26 03:59:48 2011 +0200 3.3 @@ -27,40 +27,40 @@ 3.4 mgl_begin(MGL_QUADS); 3.5 /* front */ 3.6 mgl_normal(0, 0, 1); 3.7 - mgl_texcoord2f(0, 1); mgl_vertex3f(-hsz, hsz, hsz); 3.8 - mgl_texcoord2f(0, 0); mgl_vertex3f(-hsz, -hsz, hsz); 3.9 - mgl_texcoord2f(1, 0); mgl_vertex3f(hsz, -hsz, hsz); 3.10 - mgl_texcoord2f(1, 1); mgl_vertex3f(hsz, hsz, hsz); 3.11 + mgl_texcoord2f(0, 0); mgl_vertex3f(-hsz, hsz, hsz); 3.12 + mgl_texcoord2f(0, 1); mgl_vertex3f(-hsz, -hsz, hsz); 3.13 + mgl_texcoord2f(1, 1); mgl_vertex3f(hsz, -hsz, hsz); 3.14 + mgl_texcoord2f(1, 0); mgl_vertex3f(hsz, hsz, hsz); 3.15 /* back */ 3.16 mgl_normal(0, 0, -1); 3.17 - mgl_texcoord2f(0, 1); mgl_vertex3f(hsz, hsz, -hsz); 3.18 - mgl_texcoord2f(0, 0); mgl_vertex3f(hsz, -hsz, -hsz); 3.19 - mgl_texcoord2f(1, 0); mgl_vertex3f(-hsz, -hsz, -hsz); 3.20 - mgl_texcoord2f(1, 1); mgl_vertex3f(-hsz, hsz, -hsz); 3.21 + mgl_texcoord2f(0, 0); mgl_vertex3f(hsz, hsz, -hsz); 3.22 + mgl_texcoord2f(0, 1); mgl_vertex3f(hsz, -hsz, -hsz); 3.23 + mgl_texcoord2f(1, 1); mgl_vertex3f(-hsz, -hsz, -hsz); 3.24 + mgl_texcoord2f(1, 0); mgl_vertex3f(-hsz, hsz, -hsz); 3.25 /* right */ 3.26 mgl_normal(1, 0, 0); 3.27 - mgl_texcoord2f(0, 1); mgl_vertex3f(hsz, hsz, hsz); 3.28 - mgl_texcoord2f(0, 0); mgl_vertex3f(hsz, -hsz, hsz); 3.29 - mgl_texcoord2f(1, 0); mgl_vertex3f(hsz, -hsz, -hsz); 3.30 - mgl_texcoord2f(1, 1); mgl_vertex3f(hsz, hsz, -hsz); 3.31 + mgl_texcoord2f(0, 0); mgl_vertex3f(hsz, hsz, hsz); 3.32 + mgl_texcoord2f(0, 1); mgl_vertex3f(hsz, -hsz, hsz); 3.33 + mgl_texcoord2f(1, 1); mgl_vertex3f(hsz, -hsz, -hsz); 3.34 + mgl_texcoord2f(1, 0); mgl_vertex3f(hsz, hsz, -hsz); 3.35 /* left */ 3.36 mgl_normal(-1, 0, 0); 3.37 - mgl_texcoord2f(0, 1); mgl_vertex3f(-hsz, hsz, -hsz); 3.38 - mgl_texcoord2f(0, 0); mgl_vertex3f(-hsz, -hsz, -hsz); 3.39 - mgl_texcoord2f(1, 0); mgl_vertex3f(-hsz, -hsz, hsz); 3.40 - mgl_texcoord2f(1, 1); mgl_vertex3f(-hsz, hsz, hsz); 3.41 + mgl_texcoord2f(0, 0); mgl_vertex3f(-hsz, hsz, -hsz); 3.42 + mgl_texcoord2f(0, 1); mgl_vertex3f(-hsz, -hsz, -hsz); 3.43 + mgl_texcoord2f(1, 1); mgl_vertex3f(-hsz, -hsz, hsz); 3.44 + mgl_texcoord2f(1, 0); mgl_vertex3f(-hsz, hsz, hsz); 3.45 /* top */ 3.46 mgl_normal(0, 1, 0); 3.47 - mgl_texcoord2f(0, 1); mgl_vertex3f(-hsz, hsz, -hsz); 3.48 - mgl_texcoord2f(0, 0); mgl_vertex3f(-hsz, hsz, hsz); 3.49 - mgl_texcoord2f(1, 0); mgl_vertex3f(hsz, hsz, hsz); 3.50 - mgl_texcoord2f(1, 1); mgl_vertex3f(hsz, hsz, -hsz); 3.51 + mgl_texcoord2f(0, 0); mgl_vertex3f(-hsz, hsz, -hsz); 3.52 + mgl_texcoord2f(0, 1); mgl_vertex3f(-hsz, hsz, hsz); 3.53 + mgl_texcoord2f(1, 1); mgl_vertex3f(hsz, hsz, hsz); 3.54 + mgl_texcoord2f(1, 0); mgl_vertex3f(hsz, hsz, -hsz); 3.55 /* bottom */ 3.56 mgl_normal(0, -1, 0); 3.57 - mgl_texcoord2f(0, 1); mgl_vertex3f(hsz, -hsz, -hsz); 3.58 - mgl_texcoord2f(0, 0); mgl_vertex3f(hsz, -hsz, hsz); 3.59 - mgl_texcoord2f(1, 0); mgl_vertex3f(-hsz, -hsz, hsz); 3.60 - mgl_texcoord2f(1, 1); mgl_vertex3f(-hsz, -hsz, -hsz); 3.61 + mgl_texcoord2f(0, 0); mgl_vertex3f(hsz, -hsz, -hsz); 3.62 + mgl_texcoord2f(0, 1); mgl_vertex3f(hsz, -hsz, hsz); 3.63 + mgl_texcoord2f(1, 1); mgl_vertex3f(-hsz, -hsz, hsz); 3.64 + mgl_texcoord2f(1, 0); mgl_vertex3f(-hsz, -hsz, -hsz); 3.65 mgl_end(); 3.66 } 3.67
4.1 --- a/src/mglimpl.h Mon Nov 21 12:45:18 2011 +0200 4.2 +++ b/src/mglimpl.h Sat Nov 26 03:59:48 2011 +0200 4.3 @@ -21,6 +21,13 @@ 4.4 #define MATRIX_STACK_SIZE 8 4.5 #define MAX_LIGHTS 4 4.6 4.7 +#define ZTILE_SIZE 16384 4.8 +#define ZTILE_SHIFT 14 4.9 +#define ZTILE_MASK 0x3fff 4.10 + 4.11 +#define ZTILE(x) (((x) & ~ZTILE_MASK) >> ZTILE_SHIFT) 4.12 +#define ZTILE_OFFS(x) ((x) & ZTILE_MASK) 4.13 + 4.14 #define ROUND(x) ((x) >= 0.0 ? (x) + 0.5 : (x) - 0.5) 4.15 4.16 typedef struct { 4.17 @@ -71,7 +78,8 @@ 4.18 struct framebuffer { 4.19 int width, height; 4.20 unsigned char *pixels; 4.21 - unsigned short **zbuf; /* zbuffer broken in 64k tiles */ 4.22 + unsigned short **zbuf; /* zbuffer broken in ZTILE_SIZE tiles */ 4.23 + int num_ztiles; 4.24 }; 4.25 4.26
5.1 --- a/src/mglrast.c Mon Nov 21 12:45:18 2011 +0200 5.2 +++ b/src/mglrast.c Sat Nov 26 03:59:48 2011 +0200 5.3 @@ -18,6 +18,7 @@ 5.4 #include <stdio.h> 5.5 #include <stdlib.h> 5.6 #include <string.h> 5.7 +#include <limits.h> 5.8 #include <assert.h> 5.9 #include "mingl.h" 5.10 #include "mglimpl.h"
6.1 --- a/src/mingl.c Mon Nov 21 12:45:18 2011 +0200 6.2 +++ b/src/mingl.c Sat Nov 26 03:59:48 2011 +0200 6.3 @@ -84,8 +84,19 @@ 6.4 6.5 void mgl_free(void) 6.6 { 6.7 + int i; 6.8 + 6.9 mgl_rast_cleanup(); 6.10 free(fb.pixels); 6.11 + fb.pixels = 0; 6.12 + 6.13 + if(fb.zbuf) { 6.14 + for(i=0; i<fb.num_ztiles; i++) { 6.15 + free(fb.zbuf[i]); 6.16 + } 6.17 + free(fb.zbuf); 6.18 + fb.zbuf = 0; 6.19 + } 6.20 } 6.21 6.22 unsigned char *mgl_framebuffer(void) 6.23 @@ -98,6 +109,34 @@ 6.24 memset(fb.pixels, cidx, fb.width * fb.height); 6.25 } 6.26 6.27 +void mgl_clear_depth(void) 6.28 +{ 6.29 + int i; 6.30 + 6.31 + if(!fb.zbuf) { 6.32 + long num_pixels = (long)fb.width * (long)fb.height; 6.33 + fb.num_ztiles = (num_pixels + ZTILE_SIZE - 1) / ZTILE_SIZE; 6.34 + 6.35 + if(!(fb.zbuf = malloc(fb.num_ztiles * sizeof *fb.zbuf))) { 6.36 + fprintf(stderr, "failed to allocate ztile array\n"); 6.37 + abort(); 6.38 + } 6.39 + 6.40 + for(i=0; i<fb.num_ztiles; i++) { 6.41 + if(!(fb.zbuf[i] = malloc(ZTILE_SIZE * 2))) { 6.42 + fprintf(stderr, "failed to allocate ztile %d\n", i); 6.43 + abort(); 6.44 + } 6.45 + memset(fb.zbuf[i], 0xff, ZTILE_SIZE * 2); 6.46 + } 6.47 + return; 6.48 + } 6.49 + 6.50 + for(i=0; i<fb.num_ztiles; i++) { 6.51 + memset(fb.zbuf[i], 0xff, ZTILE_SIZE * 2); 6.52 + } 6.53 +} 6.54 + 6.55 void mgl_enable(unsigned int bit) 6.56 { 6.57 st.flags |= bit;
7.1 --- a/src/mingl.h Mon Nov 21 12:45:18 2011 +0200 7.2 +++ b/src/mingl.h Sat Nov 26 03:59:48 2011 +0200 7.3 @@ -48,6 +48,7 @@ 7.4 unsigned char *mgl_framebuffer(void); 7.5 7.6 void mgl_clear(int cidx); 7.7 +void mgl_clear_depth(void); 7.8 7.9 void mgl_enable(unsigned int bit); 7.10 void mgl_disable(unsigned int bit);
8.1 --- a/src/scantmpl.h Mon Nov 21 12:45:18 2011 +0200 8.2 +++ b/src/scantmpl.h Sat Nov 26 03:59:48 2011 +0200 8.3 @@ -66,17 +66,41 @@ 8.4 start = (int)ROUND(v0->pos.y); 8.5 end = (int)ROUND(v1->pos.y); 8.6 8.7 - x = v0->pos.x; 8.8 + if(start >= 0) { 8.9 + 8.10 + x = v0->pos.x; 8.11 #ifdef INTERP_DEPTH 8.12 - z = v0->pos.z; 8.13 + z = v0->pos.z; 8.14 #endif 8.15 #ifdef INTERP_ENERGY 8.16 - e = v0->energy; 8.17 + e = v0->energy; 8.18 #endif 8.19 #ifdef INTERP_TEX 8.20 - u = v0->tc.x; 8.21 - v = v0->tc.y; 8.22 + u = v0->tc.x; 8.23 + v = v0->tc.y; 8.24 #endif 8.25 + } else { 8.26 + float lines = -v0->pos.y; 8.27 + 8.28 + x = v0->pos.x + dfdx * lines; 8.29 +#ifdef INTERP_DEPTH 8.30 + z = v0->pos.z + dfdz * lines; 8.31 +#endif 8.32 +#ifdef INTERP_ENERGY 8.33 + e = v0->energy + dfde * lines; 8.34 +#endif 8.35 +#ifdef INTERP_TEX 8.36 + u = v0->tc.x + dfdu * lines; 8.37 + v = v0->tc.y + dfdv * lines; 8.38 +#endif 8.39 + start = 0; 8.40 + } 8.41 + 8.42 + if(end >= fb->height) { 8.43 + end = fb->height - 1; 8.44 + } 8.45 + 8.46 + 8.47 for(i=start; i<end; i++) { 8.48 edge[i].pos.x = x; 8.49 x += dfdx; 8.50 @@ -124,7 +148,6 @@ 8.51 8.52 x0 = (int)ROUND(vleft[y].pos.x); 8.53 x1 = (int)ROUND(vright[y].pos.x); 8.54 - len = x1 - x0; 8.55 8.56 if(x1 < x0) { 8.57 if(st->flags & MGL_CULL_FACE) { 8.58 @@ -133,7 +156,6 @@ 8.59 tmp = x0; 8.60 x0 = x1; 8.61 x1 = tmp; 8.62 - len = -len; 8.63 8.64 left = vright; 8.65 right = vleft; 8.66 @@ -142,13 +164,15 @@ 8.67 right = vright; 8.68 } 8.69 8.70 - if(x0 < 0) x0 = 0; 8.71 - if(x1 >= fb->width) x1 = fb->width - 1; 8.72 - 8.73 - assert(len >= 0); 8.74 + if(x1 >= fb->width) { 8.75 + x1 = fb->width - 1; 8.76 + } 8.77 8.78 cidx = left[y].cidx; 8.79 #if !defined(INTERP_DEPTH) && !defined(INTERP_ENERGY) && !defined(INTERP_TEX) 8.80 + if(x0 < 0) x0 = 0; 8.81 + len = x1 - x0; 8.82 + assert(len >= 0); 8.83 /* no interpolation at all, just memset the whole scanline */ 8.84 memset(sline + x0, cidx + left[y].energy * st->col_range, len); 8.85 #else 8.86 @@ -160,29 +184,72 @@ 8.87 return; 8.88 } 8.89 8.90 + if(x0 >= 0) { 8.91 #ifdef INTERP_DEPTH 8.92 - z = left[y].pos.z; 8.93 - dz = right[y].pos.z - z; 8.94 - dfdz = dz / dx; 8.95 + z = left[y].pos.z; 8.96 + dz = right[y].pos.z - z; 8.97 + dfdz = dz / dx; 8.98 #endif 8.99 #ifdef INTERP_ENERGY 8.100 - e = left[y].energy; 8.101 - de = right[y].energy - e; 8.102 - dfde = de / dx; 8.103 + e = left[y].energy; 8.104 + de = right[y].energy - e; 8.105 + dfde = de / dx; 8.106 #endif 8.107 #ifdef INTERP_TEX 8.108 - u = left[y].tc.x; 8.109 - v = left[y].tc.y; 8.110 - du = right[y].tc.x - u; 8.111 - dv = right[y].tc.y - v; 8.112 - dfdu = du / dx; 8.113 - dfdv = dv / dx; 8.114 + u = left[y].tc.x; 8.115 + v = left[y].tc.y; 8.116 + du = right[y].tc.x - u; 8.117 + dv = right[y].tc.y - v; 8.118 + dfdu = du / dx; 8.119 + dfdv = dv / dx; 8.120 #endif 8.121 + } else { 8.122 + float dist = -left[y].pos.x; 8.123 + 8.124 +#ifdef INTERP_DEPTH 8.125 + dz = right[y].pos.z - left[y].pos.z; 8.126 + dfdz = dz / dx; 8.127 + z = left[y].pos.z + dfdz * dist; 8.128 +#endif 8.129 +#ifdef INTERP_ENERGY 8.130 + de = right[y].energy - left[y].energy; 8.131 + dfde = de / dx; 8.132 + e = left[y].energy + dfde * dist; 8.133 +#endif 8.134 +#ifdef INTERP_TEX 8.135 + du = right[y].tc.x - left[y].tc.x; 8.136 + dv = right[y].tc.y - left[y].tc.y; 8.137 + dfdu = du / dx; 8.138 + dfdv = dv / dx; 8.139 + u = left[y].tc.x + dfdu * dist; 8.140 + v = left[y].tc.y + dfdv * dist; 8.141 +#endif 8.142 + x0 = 0; 8.143 + } 8.144 + 8.145 + len = x1 - x0; 8.146 8.147 for(i=0; i<len; i++) { 8.148 int c = cidx; 8.149 8.150 #ifdef INTERP_DEPTH 8.151 + int pix = (sline + x0 + i) - fb->pixels; 8.152 + unsigned short zval = (unsigned short)(z * USHRT_MAX); 8.153 + unsigned short *zptr = fb->zbuf[ZTILE(pix)] + ZTILE_OFFS(pix); 8.154 + 8.155 + if(z < 0.0 || z >= 1.0 || zval > *zptr) { 8.156 +# ifdef INTERP_TEX 8.157 + u += dfdu; 8.158 + v += dfdv; 8.159 +# endif 8.160 +# ifdef INTERP_ENERGY 8.161 + e += dfde; 8.162 +# endif 8.163 + z += dfdz; 8.164 + continue; 8.165 + } 8.166 + 8.167 + *zptr = zval; 8.168 z += dfdz; 8.169 #endif 8.170 #ifdef INTERP_TEX
9.1 --- a/src/test.c Mon Nov 21 12:45:18 2011 +0200 9.2 +++ b/src/test.c Sat Nov 26 03:59:48 2011 +0200 9.3 @@ -53,7 +53,7 @@ 9.4 enum { CUBE, SPHERE, TORUS, NUM_PRIMS }; 9.5 static int prim = SPHERE; 9.6 static int auto_rotate = 1; 9.7 -static float cam_theta, cam_phi; 9.8 +static float cam_theta, cam_phi, cam_zoom = 4.0; 9.9 9.10 static int mx, my; 9.11 9.12 @@ -154,6 +154,7 @@ 9.13 } 9.14 9.15 mgl_enable(MGL_CULL_FACE); 9.16 + mgl_enable(MGL_DEPTH_TEST); 9.17 mgl_enable(MGL_SMOOTH); 9.18 mgl_color_range(grad_range - 1); /* gradient range */ 9.19 9.20 @@ -180,6 +181,7 @@ 9.21 { 9.22 float angle = get_msec() / 10.0; 9.23 mgl_clear(0); 9.24 + mgl_clear_depth(); 9.25 9.26 mgl_matrix_mode(MGL_MODELVIEW); 9.27 mgl_load_identity(); 9.28 @@ -190,7 +192,7 @@ 9.29 mgl_rotate(cam_theta, 0, 1, 0); 9.30 mgl_rotate(cam_phi, 1, 0, 0); 9.31 } 9.32 - mgl_translate(0, 0, -4); 9.33 + mgl_translate(0, 0, -cam_zoom); 9.34 9.35 switch(prim) { 9.36 case TORUS: 9.37 @@ -316,13 +318,19 @@ 9.38 prev_x = x; 9.39 prev_y = y; 9.40 9.41 - if(bnstate) { 9.42 + if(bnstate & MOUSE_LEFT) { 9.43 cam_theta += dx; 9.44 cam_phi += dy; 9.45 9.46 if(cam_phi > 90) cam_phi = 90; 9.47 if(cam_phi < -90) cam_phi = -90; 9.48 } 9.49 + if(bnstate & MOUSE_RIGHT) { 9.50 + cam_zoom += dy * 0.1; 9.51 + if(cam_zoom < 0.0) { 9.52 + cam_zoom = 0.0; 9.53 + } 9.54 + } 9.55 } 9.56 9.57 static void sighandler(int s)