X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fdrivers%2Fdos%2Fvideo.c;h=468207fbf6ff45742968543d8422f894867ec9e5;hb=2d5313db72354ef52e5d041c8c2efac52efc12a9;hp=d3774e7c3e4355c21fa32cd763465615a0a01cb5;hpb=d039b43e3074d14193944408ef211a9abf10608b;p=mesa.git diff --git a/src/mesa/drivers/dos/video.c b/src/mesa/drivers/dos/video.c index d3774e7c3e4..468207fbf6f 100644 --- a/src/mesa/drivers/dos/video.c +++ b/src/mesa/drivers/dos/video.c @@ -23,9 +23,9 @@ */ /* - * DOS/DJGPP device driver v1.5 for Mesa + * DOS/DJGPP device driver for Mesa * - * Copyright (C) 2002 - Borca Daniel + * Author: Daniel Borca * Email : dborca@users.sourceforge.net * Web : http://www.geocities.com/dborca * @@ -42,7 +42,6 @@ #include "video.h" - static vl_driver *drv; /* based upon mode specific data: valid entire session */ int vl_video_selector; @@ -54,18 +53,25 @@ int vl_current_stride, vl_current_width, vl_current_height, vl_current_bytes; int vl_current_offset, vl_current_delta; +void (*vl_flip) (void); + + +/* FakeColor data */ +#define R_CNT 6 +#define G_CNT 6 +#define B_CNT 6 + +#define R_BIAS 7 +#define G_BIAS 7 +#define B_BIAS 7 + +static word32 VGAPalette[256]; +word8 array_r[256]; +word8 array_g[256]; +word8 array_b[256]; +word8 tab_16_8[0x10000]; + -#if HUGE_LOOKUP -/* These lookup tables are used to extract RGB values in [0,255] - * from 15/16-bit pixel values. - */ -static unsigned char pix15r[0x8000]; -static unsigned char pix15g[0x8000]; -static unsigned char pix15b[0x8000]; -static unsigned char pix16r[0x10000]; -static unsigned char pix16g[0x10000]; -static unsigned char pix16b[0x10000]; -#else /* lookup table for scaling 5 bit colors up to 8 bits */ static int _rgb_scale_5[32] = { 0, 8, 16, 25, 33, 41, 49, 58, @@ -73,7 +79,6 @@ static int _rgb_scale_5[32] = { 132, 140, 148, 156, 165, 173, 181, 189, 197, 206, 214, 222, 230, 239, 247, 255 }; -#endif /* lookup table for scaling 6 bit colors up to 8 bits */ static int _rgb_scale_6[64] = { @@ -87,91 +92,6 @@ static int _rgb_scale_6[64] = { 227, 231, 235, 239, 243, 247, 251, 255 }; -/* FakeColor data */ -#define R_CNT 6 -#define G_CNT 6 -#define B_CNT 6 - -#define R_BIAS 7 -#define G_BIAS 7 -#define B_BIAS 7 - -static word32 VGAPalette[256]; -static word8 array_r[256]; -static word8 array_g[256]; -static word8 array_b[256]; - - - -int (*vl_mixfix) (fixed r, fixed g, fixed b); -int (*vl_mixrgb) (const unsigned char rgb[]); -int (*vl_mixrgba) (const unsigned char rgba[]); -void (*vl_getrgba) (unsigned int offset, unsigned char rgba[4]); -int (*vl_getpixel) (unsigned int offset); -void (*vl_clear) (int color); -void (*vl_rect) (int x, int y, int width, int height, int color); -void (*vl_flip) (void); -void (*vl_putpixel) (unsigned int offset, int color); - - - -/* Desc: color composition (w/o ALPHA) - * - * In : R, G, B - * Out : color - * - * Note: - - */ -static int vl_mixfix8fake (fixed r, fixed g, fixed b) -{ - return array_b[b>>FIXED_SHIFT]*G_CNT*R_CNT - + array_g[g>>FIXED_SHIFT]*R_CNT - + array_r[r>>FIXED_SHIFT]; -} -#define vl_mixfix8 vl_mixfix8fake -static int vl_mixfix15 (fixed r, fixed g, fixed b) -{ - return ((r>>(3+FIXED_SHIFT))<<10) - |((g>>(3+FIXED_SHIFT))<<5) - |(b>>(3+FIXED_SHIFT)); -} -static int vl_mixfix16 (fixed r, fixed g, fixed b) -{ - return ((r>>(3+FIXED_SHIFT))<<11) - |((g>>(2+FIXED_SHIFT))<<5) - |(b>>(3+FIXED_SHIFT)); -} -#define vl_mixfix24 vl_mixfix32 -static int vl_mixfix32 (fixed r, fixed g, fixed b) -{ - return ((r>>FIXED_SHIFT)<<16) - |((g>>FIXED_SHIFT)<<8) - |(b>>FIXED_SHIFT); -} - - - -/* Desc: color composition (w/ ALPHA) - * - * In : array of integers (R, G, B, A) - * Out : color - * - * Note: - - */ -#define vl_mixrgba8 vl_mixrgb8fake -#define vl_mixrgba15 vl_mixrgb15 -#define vl_mixrgba16 vl_mixrgb16 -#define vl_mixrgba24 vl_mixrgb24 -static int vl_mixrgba32 (const unsigned char rgba[]) -{ - /* Hack alert: - * currently, DMesa uses Mesa's alpha buffer; - * so we don't really care about alpha value here... - */ - return /*(rgba[3]<<24)|*/(rgba[0]<<16)|(rgba[1]<<8)|(rgba[2]); -} - - /* Desc: color composition (w/o ALPHA) * @@ -180,27 +100,13 @@ static int vl_mixrgba32 (const unsigned char rgba[]) * * Note: - */ -static int vl_mixrgb8fake (const unsigned char rgb[]) +static int +v_mixrgb8fake (const unsigned char rgb[]) { - return array_b[rgb[2]]*G_CNT*R_CNT - + array_g[rgb[1]]*R_CNT - + array_r[rgb[0]]; + return array_b[rgb[2]]*G_CNT*R_CNT + + array_g[rgb[1]]*R_CNT + + array_r[rgb[0]]; } -#define vl_mixrgb8 vl_mixrgb8fake -static int vl_mixrgb15 (const unsigned char rgb[]) -{ - return ((rgb[0]>>3)<<10)|((rgb[1]>>3)<<5)|(rgb[2]>>3); -} -static int vl_mixrgb16 (const unsigned char rgb[]) -{ - return ((rgb[0]>>3)<<11)|((rgb[1]>>2)<<5)|(rgb[2]>>3); -} -#define vl_mixrgb24 vl_mixrgb32 -static int vl_mixrgb32 (const unsigned char rgb[]) -{ - return (rgb[0]<<16)|(rgb[1]<<8)|(rgb[2]); -} - /* Desc: color decomposition @@ -210,98 +116,47 @@ static int vl_mixrgb32 (const unsigned char rgb[]) * * Note: uses current read buffer */ -static void v_getrgba8fake6 (unsigned int offset, unsigned char rgba[4]) -{ - word32 c = VGAPalette[((word8 *)vl_current_read_buffer)[offset]]; - rgba[0] = _rgb_scale_6[(c >> 16) & 0x3F]; - rgba[1] = _rgb_scale_6[(c >> 8) & 0x3F]; - rgba[2] = _rgb_scale_6[c & 0x3F]; - /*rgba[3] = c >> 24;*/ /* dummy alpha; we have separate SW alpha, so ignore */ -} -static void v_getrgba8fake8 (unsigned int offset, unsigned char rgba[4]) +static void +v_getrgb8fake6 (unsigned int offset, unsigned char rgb[]) { - word32 c = VGAPalette[((word8 *)vl_current_read_buffer)[offset]]; - rgba[0] = c >> 16; - rgba[1] = c >> 8; - rgba[2] = c; - /*rgba[3] = c >> 24;*/ /* dummy alpha; we have separate SW alpha, so ignore */ + word32 c = VGAPalette[((word8 *)vl_current_read_buffer)[offset]]; + rgb[0] = _rgb_scale_6[(c >> 16) & 0x3F]; + rgb[1] = _rgb_scale_6[(c >> 8) & 0x3F]; + rgb[2] = _rgb_scale_6[ c & 0x3F]; } -#define v_getrgba8 v_getrgba8fake6 -static void v_getrgba15 (unsigned int offset, unsigned char rgba[4]) +static void +v_getrgb8fake8 (unsigned int offset, unsigned char rgb[]) { - word32 c = ((word16 *)vl_current_read_buffer)[offset]; -#if HUGE_LOOKUP - c &= 0x7fff; - rgba[0] = pix15r[c]; - rgba[1] = pix15g[c]; - rgba[2] = pix15b[c]; -#else - rgba[0] = _rgb_scale_5[(c >> 10) & 0x1F]; - rgba[1] = _rgb_scale_5[(c >> 5) & 0x1F]; - rgba[2] = _rgb_scale_5[c & 0x1F]; -#endif - /*rgba[3] = 255;*/ /* dummy alpha; we have separate SW alpha, so ignore */ + word32 c = VGAPalette[((word8 *)vl_current_read_buffer)[offset]]; + rgb[0] = c >> 16; + rgb[1] = c >> 8; + rgb[2] = c; } -static void v_getrgba16 (unsigned int offset, unsigned char rgba[4]) -{ - word32 c = ((word16 *)vl_current_read_buffer)[offset]; -#if HUGE_LOOKUP - rgba[0] = pix16r[c]; - rgba[1] = pix16g[c]; - rgba[2] = pix16b[c]; -#else - rgba[0] = _rgb_scale_5[(c >> 11) & 0x1F]; - rgba[1] = _rgb_scale_6[(c >> 5) & 0x3F]; - rgba[2] = _rgb_scale_5[c & 0x1F]; -#endif - /*rgba[3] = 255;*/ /* dummy alpha; we have separate SW alpha, so ignore */ -} -static void v_getrgba24 (unsigned int offset, unsigned char rgba[4]) -{ - word32 c = *(word32 *)((long)vl_current_read_buffer+offset*3); - rgba[0] = c >> 16; - rgba[1] = c >> 8; - rgba[2] = c; - /*rgba[3] = 255;*/ /* dummy alpha; we have separate SW alpha, so ignore */ -} -static void v_getrgba32 (unsigned int offset, unsigned char rgba[4]) -{ - word32 c = ((word32 *)vl_current_read_buffer)[offset]; - rgba[0] = c >> 16; - rgba[1] = c >> 8; - rgba[2] = c; - /*rgba[3] = c >> 24;*/ /* dummy alpha; we have separate SW alpha, so ignore */ -} - -/* Desc: pixel retrieval +/* Desc: create R5G6B5 to FakeColor table lookup * - * In : pixel offset - * Out : pixel value + * In : - + * Out : - * - * Note: uses current read buffer + * Note: - */ -static int v_getpixel8 (unsigned int offset) -{ - return ((word8 *)vl_current_read_buffer)[offset]; -} -#define v_getpixel15 v_getpixel16 -static int v_getpixel16 (unsigned int offset) -{ - return ((word16 *)vl_current_read_buffer)[offset]; -} -static int v_getpixel24 (unsigned int offset) +static void +init_tab_16_8 (void) { - return *(word32 *)((long)vl_current_read_buffer+offset*3); -} -static int v_getpixel32 (unsigned int offset) -{ - return ((word32 *)vl_current_read_buffer)[offset]; + int i; + for (i = 0; i < 0x10000; i++) { + unsigned char rgb[3]; + rgb[0] = _rgb_scale_5[(i >> 11) & 0x1F]; + rgb[1] = _rgb_scale_6[(i >> 5) & 0x3F]; + rgb[2] = _rgb_scale_5[ i & 0x1F]; + tab_16_8[i] = v_mixrgb8fake(rgb); + } + (void)v_getrgb8fake6; + (void)v_getrgb8fake8; } - /* Desc: set one palette entry * * In : index, R, G, B @@ -309,13 +164,13 @@ static int v_getpixel32 (unsigned int offset) * * Note: color components are in range [0.0 .. 1.0] */ -void vl_setCI (int index, float red, float green, float blue) +void +vl_setCI (int index, float red, float green, float blue) { - drv->setCI_f(index, red, green, blue); + drv->setCI_f(index, red, green, blue); } - /* Desc: set one palette entry * * In : color, R, G, B @@ -323,15 +178,15 @@ void vl_setCI (int index, float red, float green, float blue) * * Note: - */ -static void fake_setcolor (int c, int r, int g, int b) +static void +fake_setcolor (int c, int r, int g, int b) { - VGAPalette[c] = 0xff000000 | (r<<16) | (g<<8) | b; + VGAPalette[c] = 0xff000000 | (r<<16) | (g<<8) | b; - drv->setCI_i(c, r, g, b); + drv->setCI_i(c, r, g, b); } - /* Desc: build FakeColor palette * * In : CI precision in bits @@ -339,84 +194,36 @@ static void fake_setcolor (int c, int r, int g, int b) * * Note: - */ -static void fake_buildpalette (int bits) +static void +fake_buildpalette (int bits) { - double c_r, c_g, c_b; - int r, g, b, color = 0; - - double max = (1 << bits) - 1; - - for (b=0; b> 8; - g = (pixel & 0x03E0) >> 3; - b = (pixel & 0x001F) << 2; - - r = (unsigned int)(((double)r * 255. / 0x7c) + 0.5); - g = (unsigned int)(((double)g * 255. / 0x7c) + 0.5); - b = (unsigned int)(((double)b * 255. / 0x7c) + 0.5); - - pix15r[pixel] = r; - pix15g[pixel] = g; - pix15b[pixel] = b; - } - - /* 16bit */ - r = (pixel & 0xF800) >> 8; - g = (pixel & 0x07E0) >> 3; - b = (pixel & 0x001F) << 3; - - r = (unsigned int)(((double)r * 255. / 0xF8) + 0.5); - g = (unsigned int)(((double)g * 255. / 0xFC) + 0.5); - b = (unsigned int)(((double)b * 255. / 0xF8) + 0.5); - - pix16r[pixel] = r; - pix16g[pixel] = g; - pix16b[pixel] = b; - } -} -#endif - - - /* Desc: initialize hardware * * In : - @@ -424,33 +231,33 @@ void v_init_pixeltables (void) * * Note: when returning non-NULL, global variable `drv' is guaranteed to be ok */ -static vl_mode *v_init_hw (void) +static vl_mode * +v_init_hw (void) { - static vl_mode *q = NULL; - - if (q == NULL) { - /* are we forced to NUL driver? */ - if (getenv("DMESA_NULDRV")) { - if ((q = NUL.init()) != NULL) { - drv = &NUL; - } - return q; - } - /* initialize hardware */ - if ((q = VESA.init()) != NULL) { - drv = &VESA; - } else if ((q = VGA.init()) != NULL) { - drv = &VGA; - } else { - drv = NULL; - } - } + static vl_mode *q = NULL; - return q; + if (q == NULL) { + /* are we forced to NUL driver? */ + if (getenv("DMESA_NULDRV")) { + if ((q = NUL.init()) != NULL) { + drv = &NUL; + } + return q; + } + /* initialize hardware */ + if ((q = VESA.init()) != NULL) { + drv = &VESA; + } else if ((q = VGA.init()) != NULL) { + drv = &VGA; + } else { + drv = NULL; + } + } + + return q; } - /* Desc: sync buffer with video hardware * * In : ptr to old buffer, position, size @@ -458,36 +265,36 @@ static vl_mode *v_init_hw (void) * * Note: - */ -int vl_sync_buffer (void **buffer, int x, int y, int width, int height) +int +vl_sync_buffer (void **buffer, int x, int y, int width, int height) { - if ((width & 7) || (x < 0) || (y < 0) || (x+width > video_mode->xres) || (y+height > video_mode->yres)) { - return -1; - } else { - void *newbuf = *buffer; - - if ((newbuf == NULL) || (vl_current_width != width) || (vl_current_height != height)) { - newbuf = realloc(newbuf, width * height * video_bypp); - } - - if (newbuf == NULL) { - return -2; - } - - vl_current_width = width; - vl_current_height = height; - vl_current_stride = vl_current_width * video_bypp; - vl_current_bytes = vl_current_stride * height; - - vl_current_offset = video_scanlen * y + video_bypp * x; - vl_current_delta = video_scanlen - vl_current_stride; - - vl_current_draw_buffer = vl_current_read_buffer = *buffer = newbuf; - return 0; - } + if ((/*XXX*/width & 7) || (x < 0) || (y < 0) || (x+width > video_mode->xres) || (y+height > video_mode->yres)) { + return -1; + } else { + void *newbuf = *buffer; + + if ((newbuf == NULL) || (vl_current_width != width) || (vl_current_height != height)) { + newbuf = realloc(newbuf, width * height * video_bypp); + } + + if (newbuf == NULL) { + return -2; + } + + vl_current_width = width; + vl_current_height = height; + vl_current_stride = vl_current_width * video_bypp; + vl_current_bytes = vl_current_stride * height; + + vl_current_offset = video_scanlen * y + video_bypp * x; + vl_current_delta = video_scanlen - vl_current_stride; + + vl_current_draw_buffer = vl_current_read_buffer = *buffer = newbuf; + return 0; + } } - /* Desc: state retrieval * * In : name, storage @@ -495,41 +302,40 @@ int vl_sync_buffer (void **buffer, int x, int y, int width, int height) * * Note: - */ -int vl_get (int pname, int *params) +int +vl_get (int pname, int *params) { - switch (pname) { - case VL_GET_SCREEN_SIZE: - params[0] = video_mode->xres; - params[1] = video_mode->yres; - break; - case VL_GET_VIDEO_MODES: - { - int n; - vl_mode *q; - if ((q = v_init_hw()) == NULL) { - return -1; - } - /* count available visuals */ - for (n = 0; q->mode != 0xffff; q++) { - if ((q + 1)->mode == (q->mode | 0x4000)) { - /* same mode, but linear */ - q++; - } - if (params) { - params[n] = (int)q; - } - n++; - } - return n; - } - default: - return (drv != NULL) ? drv->get(pname, params) : -1; - } - return 0; + switch (pname) { + case VL_GET_SCREEN_SIZE: + params[0] = video_mode->xres; + params[1] = video_mode->yres; + break; + case VL_GET_VIDEO_MODES: { + int n; + vl_mode *q; + if ((q = v_init_hw()) == NULL) { + return -1; + } + /* count available visuals */ + for (n = 0; q->mode != 0xffff; q++) { + if ((q + 1)->mode == (q->mode | 0x4000)) { + /* same mode, but linear */ + q++; + } + if (params) { + params[n] = (int)q; + } + n++; + } + return n; + } + default: + return (drv != NULL) ? drv->get(pname, params) : -1; + } + return 0; } - /* Desc: setup mode * * In : ptr to mode definition @@ -537,54 +343,37 @@ int vl_get (int pname, int *params) * * Note: - */ -static int vl_setup_mode (vl_mode *p) +static int +vl_setup_mode (vl_mode *p) { - if (p == NULL) { - return -1; - } - -#define INITPTR(bpp) \ - vl_putpixel = v_putpixel##bpp; \ - vl_getrgba = v_getrgba##bpp; \ - vl_getpixel = v_getpixel##bpp; \ - vl_rect = v_rect##bpp; \ - vl_mixfix = vl_mixfix##bpp; \ - vl_mixrgb = vl_mixrgb##bpp; \ - vl_mixrgba = vl_mixrgba##bpp; \ - vl_clear = _can_mmx() ? v_clear##bpp##_mmx : v_clear##bpp - - switch (p->bpp) { - case 8: - INITPTR(8); - break; - case 15: - INITPTR(15); - break; - case 16: - INITPTR(16); - break; - case 24: - INITPTR(24); - break; - case 32: - INITPTR(32); - break; - default: - return -1; - } - -#undef INITPTR - - video_mode = p; - video_bypp = (p->bpp+7)/8; - video_scanlen = p->scanlen; - vl_video_selector = p->sel; - - return 0; + if (p == NULL) { + return -1; + } + + switch (p->bpp) { + case 8: + break; + case 15: + break; + case 16: + break; + case 24: + break; + case 32: + break; + default: + return -1; + } + + video_mode = p; + video_bypp = (p->bpp+7)/8; + video_scanlen = p->scanlen; + vl_video_selector = p->sel; + + return 0; } - /* Desc: restore to the mode prior to first call to `vl_video_init'. * * In : - @@ -592,15 +381,15 @@ static int vl_setup_mode (vl_mode *p) * * Note: - */ -void vl_video_exit (void) +void +vl_video_exit (void) { - drv->restore(); - drv->fini(); - video_mode = NULL; + drv->restore(); + drv->fini(); + video_mode = NULL; } - /* Desc: enter mode * * In : xres, yres, bits/pixel, RGB, refresh rate @@ -608,52 +397,46 @@ void vl_video_exit (void) * * Note: - */ -int vl_video_init (int width, int height, int bpp, int rgb, int refresh) +int +vl_video_init (int width, int height, int bpp, int rgb, int refresh, int fbbits) { - int fake; - vl_mode *p, *q; - unsigned int min; - - fake = 0; - if (!rgb) { - bpp = 8; - } else if (bpp == 8) { - fake = 1; - } -#if HUGE_LOOKUP - else if (bpp < 24) { - v_init_pixeltables(); - } -#endif - - /* initialize hardware */ - if ((q = v_init_hw()) == NULL) { - return 0; - } - - /* search for a mode that fits our request */ - for (min=-1, p=NULL; q->mode!=0xffff; q++) { - if ((q->xres>=width) && (q->yres>=height) && (q->bpp==bpp)) { - if (min>=(unsigned)(q->xres*q->yres)) { - min = q->xres*q->yres; - p = q; - } - } - } - - /* setup and enter mode */ - if ((vl_setup_mode(p) == 0) && (drv->entermode(p, refresh) == 0)) { - vl_flip = drv->blit; - if (fake) { - drv->get(VL_GET_CI_PREC, (int *)(&min)); - fake_buildpalette(min); - if (min == 8) { - vl_getrgba = v_getrgba8fake8; - } + int fake; + vl_mode *p, *q; + unsigned int min; + + fake = 0; + if (!rgb) { + bpp = 8; + } else if (bpp == 8) { + fake = 1; + } + + /* initialize hardware */ + if ((q = v_init_hw()) == NULL) { + return 0; + } + + /* search for a mode that fits our request */ + for (min = -1, p = NULL; q->mode != 0xffff; q++) { + if ((q->xres >= width) && (q->yres >= height) && (q->bpp == bpp)) { + if (min >= (unsigned)(q->xres * q->yres)) { + min = q->xres * q->yres; + p = q; + } + } + } + + /* setup and enter mode */ + if ((vl_setup_mode(p) == 0) && (drv->entermode(p, refresh, fbbits) == 0)) { + vl_flip = drv->blit; + if (fake) { + drv->get(VL_GET_CI_PREC, (int *)(&min)); + fake_buildpalette(min); + init_tab_16_8(); + } + return bpp; } - return bpp; - } - /* abort */ - return 0; + /* abort */ + return 0; }