/* Video driver for SVGAlib - alpha, slow by Zoltan Mark Vician Code started: Mon Apr 1 23:25:47 2000 */ #include #include #include #include #include "config.h" #include "video_out.h" #include "video_out_internal.h" #include "yuv2rgb.h" LIBVO_EXTERN(svga) static vo_info_t vo_info = { "SVGAlib", "svga", "Zoltan Mark Vician ", "" }; // SVGAlib definitions GraphicsContext *screen; GraphicsContext *virt; static uint8_t *scalebuf = NULL, *yuvbuf = NULL; static uint32_t orig_w, orig_h, maxw, maxh; // Width, height static float scaling = 0; static uint32_t x_pos, y_pos; // Position // Order must not change! #define _640x480x32K 0 // 17 #define _640x480x64K 1 // 18 #define _640x480x16M 2 // 19 #define _640x480x16M32 3 // 34 #define _800x600x32K 4 // 20 #define _800x600x64K 5 // 21 #define _800x600x16M 6 // 22 #define _800x600x16M32 7 // 35 #define _1024x768x32K 8 // 23 #define _1024x768x64K 9 // 24 #define _1024x768x16M 10 // 25 #define _1024x768x16M32 11 // 36 #define VID_MODE_NUM 12 static uint8_t vid_modes[VID_MODE_NUM]; static vid_mode_nums[VID_MODE_NUM] = {17,18,19,34,20,21,22,35,23,24,25,36}; static uint8_t vid_mode; static uint8_t bpp; static uint32_t pformat; static uint8_t checked = 0; static void checksupportedmodes() { int i; checked = 1; vga_init(); vga_disabledriverreport(); for (i = 0; i < VID_MODE_NUM; i++) { if (vga_hasmode(vid_mode_nums[i]) > 0) vid_modes[i] = 1; else vid_modes[i] = 0; } } static uint32_t init(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint32_t fullscreen, char *title, uint32_t format) { if (!checked) { checksupportedmodes(); // Looking for available video modes } pformat = format; if (format == IMGFMT_YV12) bpp = 32; else bpp = format & 255; if (width > 800) switch (bpp) { case 32: vid_mode = 36; break; case 24: vid_mode = 25; break; case 16: vid_mode = 24; break; case 15: vid_mode = 23; break; } else if (width > 640) switch (bpp) { case 32: vid_mode = 35; break; case 24: vid_mode = 22; break; case 16: vid_mode = 21; break; case 15: vid_mode = 20; break; } else switch (bpp) { case 32: vid_mode = 34; break; case 24: vid_mode = 19; break; case 16: vid_mode = 18; break; case 15: vid_mode = 17; break; } if (vga_setmode(vid_mode) == -1){ printf("vo_svga: vga_setmode(%d) failed.\n",vid_mode); return(1); // error } if (gl_setcontextvga(vid_mode)){ printf("vo_svga: gl_setcontextvga(%d) failed.\n",vid_mode); return(1); // error } screen = gl_allocatecontext(); gl_getcontext(screen); if (gl_setcontextvgavirtual(vid_mode)){ printf("vo_svga: gl_setcontextvgavirtual(%d) failed.\n",vid_mode); return(1); // error } virt = gl_allocatecontext(); gl_getcontext(virt); gl_setcontext(virt); gl_clearscreen(0); orig_w = width; orig_h = height; if ((fullscreen & 0x04) && (WIDTH != orig_w)) { if (((orig_w*1.0) / orig_h) < (4.0/3)) { maxh = HEIGHT; scaling = maxh / (orig_h * 1.0); maxw = (uint32_t) (orig_w * scaling); scalebuf = malloc(maxw * maxh * BYTESPERPIXEL); } else { maxw = WIDTH; scaling = maxw / (orig_w * 1.0); maxh = (uint32_t) (orig_h * scaling); scalebuf = malloc(maxw * maxh * BYTESPERPIXEL); } } else { maxw = orig_w; maxh = orig_h; } x_pos = (WIDTH - maxw) / 2; y_pos = (HEIGHT - maxh) / 2; if (pformat == IMGFMT_YV12) { yuv2rgb_init(bpp, MODE_RGB); yuvbuf = malloc(maxw * maxh * BYTESPERPIXEL); } // printf("Vid_mode: %d\n",vid_mode); printf("SVGAlib resolution: %dx%d %dbpp - ", WIDTH, HEIGHT, bpp); if (maxw != orig_w || maxh != orig_h) printf("Video scaled to: %dx%d\n",maxw,maxh); else printf("No video scaling\n"); return (0); } static uint32_t query_format(uint32_t format) { if (!checked) checksupportedmodes(); // Looking for available video modes switch (format) { case IMGFMT_RGB32: case IMGFMT_BGR|32: { return (vid_modes[_640x480x16M32] | vid_modes[_800x600x16M32] | vid_modes[_1024x768x16M32]); } case IMGFMT_RGB24: case IMGFMT_BGR|24: { return (vid_modes[_640x480x16M] | vid_modes[_800x600x16M] | vid_modes[_1024x768x16M]); } case IMGFMT_RGB16: case IMGFMT_BGR|16: { return (vid_modes[_640x480x64K] | vid_modes[_800x600x64K] | vid_modes[_1024x768x64K]); } case IMGFMT_RGB15: case IMGFMT_BGR|15: { return (vid_modes[_640x480x32K] | vid_modes[_800x600x32K] | vid_modes[_1024x768x32K]); } case IMGFMT_YV12: return (1); } return (0); } static const vo_info_t* get_info(void) { return (&vo_info); } static void draw_alpha(int x0, int y0, int w, int h, unsigned char *src, unsigned char *srca, int stride) { switch (bpp) { case 32: vo_draw_alpha_rgb32(w, h, src, srca, stride, virt->vbuf+4*(y0*WIDTH+x0), 4*WIDTH); break; case 24: vo_draw_alpha_rgb24(w, h, src, srca, stride, virt->vbuf+3*(y0*WIDTH+x0), 3*WIDTH); break; case 16: vo_draw_alpha_rgb16(w, h, src, srca, stride, virt->vbuf+2*(y0*WIDTH+x0), 2*WIDTH); break; case 15: vo_draw_alpha_rgb15(w, h, src, srca, stride, virt->vbuf+2*(y0*WIDTH+x0), 2*WIDTH); break; } } static uint32_t draw_frame(uint8_t *src[]) { if (pformat == IMGFMT_YV12) { yuv2rgb(yuvbuf, src[0], src[1], src[2], orig_w, orig_h, orig_w * BYTESPERPIXEL, orig_w, orig_w / 2); src[0] = yuvbuf; } if (scalebuf) { gl_scalebox(orig_w, orig_h, src[0], maxw, maxh, scalebuf); src[0] = scalebuf; } gl_putbox(x_pos, y_pos, maxw, maxh, src[0]); } static uint32_t draw_slice(uint8_t *image[], int stride[], int w, int h, int x, int y) { uint8_t *src = yuvbuf; yuv2rgb(yuvbuf, image[0], image[1], image[2], w, h, orig_w * BYTESPERPIXEL, stride[0], stride[1]); if (scalebuf) { gl_scalebox(w, h, yuvbuf,(int) (w * scaling), (int) (h * scaling), scalebuf); src = scalebuf; } gl_putbox(x + x_pos, y + y_pos, (int) (w * scaling), (int) (h * scaling), src); } static void flip_page(void) { if (y_pos) { gl_fillbox(0, 0, WIDTH, y_pos, 0); gl_fillbox(0, HEIGHT - y_pos, WIDTH, y_pos, 0); } else { gl_fillbox(0, 0, x_pos, HEIGHT, 0); gl_fillbox(WIDTH - x_pos, 0, x_pos, HEIGHT, 0); } vo_draw_text(WIDTH, HEIGHT, draw_alpha); gl_copyscreen(screen); } static void check_events(void) { } static void uninit(void) { gl_freecontext(screen); gl_freecontext(virt); vga_setmode(TEXT); if (scalebuf) free(scalebuf); if (yuvbuf) free(yuvbuf); }