+++ /dev/null
-obj = 3dgfx.obj bsptree.obj bump.obj cfgopt.obj demo.obj djdpmi.obj dynarr.obj &
-fract.obj gfx.obj gfxutil.obj greets.obj grise.obj hairball.obj infcubes.obj &
-keyb.obj logger.obj main.obj mesh.obj meshload.obj metaball.obj metasurf.obj &
-mouse.obj music.obj noise.obj plasma.obj polyclip.obj polyfill.obj polytest.obj &
-rbtree.obj sball.obj screen.obj smoketxt.obj thunder.obj tilemaze.obj timer.obj &
-tinyfps.obj treestor.obj ts_text.obj tunnel.obj util.obj vbe.obj vga.obj
-
-bin = demo.exe
-
-libs = imago.lib anim.lib
-
-def = -dM_PI=3.141592653589793
-opt = -5 -fp5 -otexan -oh -oi -ei
-dbg = -d1
-
-!ifdef __UNIX__
-incpath = -Isrc -Isrc/dos -Ilibs -Ilibs/imago/src -Ilibs/anim/src
-libpath = libpath libs/imago libpath libs/anim
-RM = rm -f
-!else
-incpath = -Isrc -Isrc\dos -Ilibs -Ilibs\imago\src -Ilibs\anim\src
-libpath = libpath libs\imago libpath libs\anim
-RM = del
-!endif
-
-AS = nasm
-CC = wcc386
-CXX = wpp386
-ASFLAGS = -fobj
-CFLAGS = $(dbg) $(opt) $(def) -zq -bt=dos $(incpath)
-CXXFLAGS = $(CFLAGS)
-LDFLAGS = option stack=16k option map $(libpath) library { $(libs) }
-LD = wlink
-
-$(bin): cflags.occ $(obj) libs/imago/imago.lib
- %write objects.lnk $(obj)
- %write ldflags.lnk $(LDFLAGS)
- $(LD) debug all name $@ system dos4g file { @objects } @ldflags
-
-.c: src;src/dos
-.cc: src;src/dos
-.asm: src;src/dos
-
-cflags.occ: Makefile
- %write $@ $(CFLAGS)
-
-cxxflags.occ: Makefile
- %write $@ $(CXXFLAGS)
-
-.c.obj: .autodepend
- $(CC) -fo=$@ @cflags.occ $[*
-
-.cc.obj: .autodepend
- $(CXX) -fo=$@ @cxxflags.occ $[*
-
-.asm.obj:
- $(AS) $(ASFLAGS) -o $@ $[*.asm
-
-clean: .symbolic
- $(RM) *.obj
- $(RM) *.occ
- $(RM) *.lnk
- $(RM) $(bin)
#include <math.h>
#include <string.h>
+#ifdef __WATCOMC__
+#define inline __inline
+#endif
+
typedef struct {
float x, y, z;
} cgm_vec3;
animateParticles();
renderParticles();
- renderBump((unsigned short*)vmem_back);
+ renderBump((unsigned short*)fb_pixels);
swap_buffers(0);
}
int fb_width = FB_WIDTH;
int fb_height = FB_HEIGHT;
int fb_bpp = 16;
-uint16_t *fb_pixels, *vmem_back, *vmem_front;
+uint16_t *fb_pixels, *vmem;
unsigned long time_msec;
int mouse_x, mouse_y;
unsigned int mouse_bmask;
scr_update();
scr_draw();
- draw_mouse_pointer(vmem_front);
+ draw_mouse_pointer(vmem);
++nframes;
}
extern int fb_width, fb_height, fb_bpp;
extern uint16_t *fb_pixels; /* system-RAM pixel buffer: use swap_buffers(fb_pixels) */
-/* video memory pointers. might both point to the front buffer if there is not
- * enough memory for page flipping. use swap_buffers(0) to flip. */
-extern uint16_t *vmem_back, *vmem_front;
+extern uint16_t *vmem; /* visible video memory pointer */
extern unsigned long time_msec;
extern int mouse_x, mouse_y;
unsigned long get_msec(void);
void set_palette(int idx, int r, int g, int b);
-/* pass 0 to just swap vmem_back/vmem_front with page flipping
- * pass a pointer to a system-ram pixel buffer to copy it to vmem_front,
- * instead of flipping.
- */
+/* if pixels is 0, it defaults to fb_pixels */
void swap_buffers(void *pixels);
/* call each frame to get 3D viewing spherical coordinates */
}
mode = -1;
-
+ nmodes = vbe_num_modes(&vbe);
for(i=0; i<nmodes; i++) {
vbe_mode_info(vbe.modes[i], &minf);
if(minf.xres != xsz || minf.yres != ysz) continue;
return 1;
}
- if(!(vmem_back = set_video_mode(fb_width, fb_height, fb_bpp))) {
+ if(!(vmem = set_video_mode(fb_width, fb_height, fb_bpp))) {
return 1;
}
- if(!(vmem_front = page_flip(FLIP_NOW))) {
- fprintf(stderr, "page flipping not supported. falling back to double buffering\n");
- vmem_front = vmem_back;
- } else {
- assert(vmem_back != vmem_front);
- }
if(demo_init(argc, argv) == -1) {
set_text_mode();
void swap_buffers(void *pixels)
{
- if(pixels) {
- /* just memcpy to the front buffer */
- if(opt.vsync) {
- wait_vsync();
- }
- drawFps(pixels);
- memcpy(vmem_front, pixels, fbsize);
-
- } else {
- /* attempt page flipping */
- void *next;
-
- drawFps(vmem_back);
- if((next = page_flip(opt.vsync ? FLIP_VBLANK : FLIP_NOW))) {
- assert(next == vmem_back);
- vmem_back = vmem_front;
- vmem_front = next;
- } else {
- /* failed to page flip, assume we drew in the front buffer then
- * and just wait for vsync if necessary
- */
- if(opt.vsync) {
- wait_vsync();
- }
- }
+ if(!pixels) {
+ pixels = fb_pixels;
+ }
+
+ /* just memcpy to the front buffer */
+ if(opt.vsync) {
+ wait_vsync();
}
+ drawFps(pixels);
+ memcpy(vmem, pixels, fbsize);
}
static void draw(void)
{
int i, j;
- unsigned short *pixels = vmem_back;
+ unsigned short *pixels = fb_pixels;
cx = mouse_x;
cy = mouse_y;
}
}
- pixels = vmem_back;
+ pixels = fb_pixels;
pixels[mouse_y * fb_width + mouse_x] = 0xffe;
- swap_buffers(vmem_back);
+ swap_buffers(0);
}
static long normalize_coord(long x, long range)
/* Blit effect to framebuffer */
src = backBuffer + PIXEL_PADDING;
- dst = vmem_back;
+ dst = fb_pixels;
for (scanline = 0; scanline < fb_height; scanline++) {
memcpy(dst, src, fb_width * 2);
src += BB_SIZE;
int t2 = sin(0.2f * dt) * 248 + 248;
int t3 = sin(0.5f * dt) * 380 + 380;
- unsigned int *vram32 = (unsigned int*)vmem_back;
+ unsigned int *vram32 = (unsigned int*)fb_pixels;
unsigned int p0, p1;
for (y = 0; y < fb_height; y++)
{
fprintf(stderr, "failed to allocate virtual framebuffer\n");
return 1;
}
- vmem_front = vmem_back = fb_pixels;
+ vmem = fb_pixels;
SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER | SDL_INIT_NOPARACHUTE);
if(!(fbsurf = SDL_SetVideoMode(xsz, ysz, fb_bpp, sdl_flags))) {
}
void blitEffect() {
- unsigned int *dst1 = (unsigned int*) vmem_back;
+ unsigned int *dst1 = (unsigned int*) fb_pixels;
unsigned int *dst2 = dst1 + 160; /* We're writing two pixels at once */
unsigned char *src1 = blurBuffer + BLUR_BUFFER_WIDTH + 1;
unsigned char *src2 = src1 + BLUR_BUFFER_WIDTH;
{ \
static char scrap[128]; \
char *str; \
- int sz = snprintf(scrap, sizeof scrap, fmt, x); \
+ int sz = sprintf(scrap, fmt, x); \
if(!(str = malloc(sz + 1))) return 0; \
sprintf(str, fmt, x); \
return str; \
int starty = i * num_lines;
int resty = starty + draw_lines;
int rest_lines = num_lines - draw_lines;
- draw_tunnel_range(vmem_back, xoffs, yoffs, starty, draw_lines, time_msec);
+ draw_tunnel_range(fb_pixels, xoffs, yoffs, starty, draw_lines, time_msec);
if(rest_lines) {
- memset(vmem_back + resty * fb_width, 0, rest_lines * fb_width * 2);
+ memset(fb_pixels + resty * fb_width, 0, rest_lines * fb_width * 2);
}
}