diff options
author | Kristian Høgsberg <krh@bitplanet.net> | 2010-02-25 15:55:00 -0500 |
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committer | Kristian Høgsberg <krh@bitplanet.net> | 2010-02-25 17:40:10 -0500 |
commit | b5c3199afe0d90787223cb57c35ff22e38b3c920 (patch) | |
tree | 8948e0043b3bb545bbdf8643926b7661be20fb9f /src/mesa/drivers/dos/vesa.c | |
parent | 97972244d5254cb2862325f8fe03db0a82a8041a (diff) |
Remove dos driver
Diffstat (limited to 'src/mesa/drivers/dos/vesa.c')
-rw-r--r-- | src/mesa/drivers/dos/vesa.c | 719 |
1 files changed, 0 insertions, 719 deletions
diff --git a/src/mesa/drivers/dos/vesa.c b/src/mesa/drivers/dos/vesa.c deleted file mode 100644 index 3fdd3e25db..0000000000 --- a/src/mesa/drivers/dos/vesa.c +++ /dev/null @@ -1,719 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 4.1 - * - * Copyright (C) 1999 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -/* - * DOS/DJGPP device driver for Mesa - * - * Author: Daniel Borca - * Email : dborca@users.sourceforge.net - * Web : http://www.geocities.com/dborca - */ - - -#include <dpmi.h> -#include <pc.h> -#include <stdlib.h> -#include <stubinfo.h> -#include <sys/exceptn.h> -#include <sys/segments.h> -#include <sys/farptr.h> -#include <sys/movedata.h> - -#include "video.h" -#include "vesa.h" - - -static vl_mode modes[128]; - -static word16 vesa_ver; -static int banked_selector, linear_selector; -static int oldmode = -1; - -static int vesa_color_precision = 6; - -static word16 *vesa_pmcode; -unsigned int vesa_gran_mask, vesa_gran_shift; - - -/* - * VESA info - */ -#define V_SIGN 0 -#define V_MINOR 4 -#define V_MAJOR 5 -#define V_OEM_OFS 6 -#define V_OEM_SEG 8 -#define V_MODE_OFS 14 -#define V_MODE_SEG 16 -#define V_MEMORY 18 - -/* - * mode info - */ -#define M_ATTR 0 -#define M_GRAN 4 -#define M_SCANLEN 16 -#define M_XRES 18 -#define M_YRES 20 -#define M_BPP 25 -#define M_RED 31 -#define M_GREEN 33 -#define M_BLUE 35 -#define M_PHYS_PTR 40 - -/* - * VESA 3.0 CRTC timings structure - */ -typedef struct CRTCInfoBlock { - unsigned short HorizontalTotal; - unsigned short HorizontalSyncStart; - unsigned short HorizontalSyncEnd; - unsigned short VerticalTotal; - unsigned short VerticalSyncStart; - unsigned short VerticalSyncEnd; - unsigned char Flags; - unsigned long PixelClock; /* units of Hz */ - unsigned short RefreshRate; /* units of 0.01 Hz */ - unsigned char reserved[40]; -} __PACKED__ CRTCInfoBlock; - -#define HNEG (1 << 2) -#define VNEG (1 << 3) -#define DOUBLESCAN (1 << 0) - - -/* Desc: Attempts to detect VESA, check video modes and create selectors. - * - * In : - - * Out : mode array - * - * Note: - - */ -static vl_mode * -vesa_init (void) -{ - __dpmi_regs r; - word16 *p; - vl_mode *q; - char vesa_info[512], tmp[512]; - int maxsize = 0; - word32 linearfb = 0; - - if (vesa_ver) { - return modes; - } - - _farpokel(_stubinfo->ds_selector, 0, 0x32454256); - r.x.ax = 0x4f00; - r.x.di = 0; - r.x.es = _stubinfo->ds_segment; - __dpmi_int(0x10, &r); - movedata(_stubinfo->ds_selector, 0, _my_ds(), (unsigned)vesa_info, 512); - if ((r.x.ax != 0x004f) || ((_32_ vesa_info[V_SIGN]) != 0x41534556)) { - return NULL; - } - - p = (word16 *)(((_16_ vesa_info[V_MODE_SEG]) << 4) + (_16_ vesa_info[V_MODE_OFS])); - q = modes; - do { - if ((q->mode = _farpeekw(__djgpp_dos_sel, (unsigned long)(p++))) == 0xffff) { - break; - } - - r.x.ax = 0x4f01; - r.x.cx = q->mode; - r.x.di = 512; - r.x.es = _stubinfo->ds_segment; - __dpmi_int(0x10, &r); - movedata(_stubinfo->ds_selector, 512, _my_ds(), (unsigned)tmp, 256); - switch (tmp[M_BPP]) { - case 16: - q->bpp = tmp[M_RED] + tmp[M_GREEN] + tmp[M_BLUE]; - break; - case 8: - case 15: - case 24: - case 32: - q->bpp = tmp[M_BPP]; - break; - default: - q->bpp = 0; - } - if ((r.x.ax == 0x004f) && ((tmp[M_ATTR] & 0x11) == 0x11) && q->bpp) { - q->xres = _16_ tmp[M_XRES]; - q->yres = _16_ tmp[M_YRES]; - q->scanlen = _16_ tmp[M_SCANLEN]; - q->gran = (_16_ tmp[M_GRAN]) << 10; - if (tmp[M_ATTR] & 0x80) { - vl_mode *q1 = q + 1; - *q1 = *q++; - linearfb = _32_ tmp[M_PHYS_PTR]; - q->mode |= 0x4000; - } - if (maxsize < (q->scanlen * q->yres)) { - maxsize = q->scanlen * q->yres; - } - q++; - } - } while (TRUE); - - if (q == modes) { - return NULL; - } - if (_create_selector(&banked_selector, 0xa0000, modes[0].gran)) { - return NULL; - } - if (linearfb) { - maxsize = ((maxsize + 0xfffUL) & ~0xfffUL); - if (_create_selector(&linear_selector, linearfb, maxsize)) { - linear_selector = banked_selector; - } - } - - for (q = modes; q->mode != 0xffff; q++) { - q->sel = banked_selector; - if (q->mode & 0x4000) { - if (linear_selector != banked_selector) { - q->sel = linear_selector; - } else { - q->mode &= ~0x4000; - } - } - } - - if (vesa_info[V_MAJOR] >= 2) { - r.x.ax = 0x4f0a; - r.x.bx = 0; - __dpmi_int(0x10, &r); - if (r.x.ax == 0x004f) { - vesa_pmcode = (word16 *)malloc(r.x.cx); - if (vesa_pmcode != NULL) { - movedata(__djgpp_dos_sel, (r.x.es << 4) + r.x.di, _my_ds(), (unsigned)vesa_pmcode, r.x.cx); - if (vesa_pmcode[3]) { - p = (word16 *)((long)vesa_pmcode + vesa_pmcode[3]); - while (*p++ != 0xffff) { - } - } else { - p = NULL; - } - if (p && (*p != 0xffff)) { - free(vesa_pmcode); - vesa_pmcode = NULL; - } else { - vesa_swbank = (void *)((long)vesa_pmcode + vesa_pmcode[0]); - } - } - } - } - - vesa_ver = _16_ vesa_info[V_MINOR]; - return modes; -} - - -/* Desc: Frees all resources allocated by VESA init code. - * - * In : - - * Out : - - * - * Note: - - */ -static void -vesa_fini (void) -{ - if (vesa_ver) { - _remove_selector(&linear_selector); - _remove_selector(&banked_selector); - if (vesa_pmcode != NULL) { - free(vesa_pmcode); - vesa_pmcode = NULL; - } - } -} - - -/* Desc: Uses VESA 3.0 function 0x4F0B to find the closest pixel clock to the requested value. - * - * In : mode, clock - * Out : desired clock - * - * Note: - - */ -static unsigned long -_closest_pixclk (int mode_no, unsigned long vclk) -{ - __dpmi_regs r; - - r.x.ax = 0x4F0B; - r.h.bl = 0; - r.d.ecx = vclk; - r.x.dx = mode_no; - __dpmi_int(0x10, &r); - - return (r.x.ax == 0x004f) ? r.d.ecx : 0; -} - - -/* Desc: Calculates CRTC mode timings. - * - * In : crtc block, geometry, adjust - * Out : - * - * Note: - */ -static void -_crtc_timing (CRTCInfoBlock *crtc, int xres, int yres, int xadjust, int yadjust) -{ - int HTotal, VTotal; - int HDisp, VDisp; - int HSS, VSS; - int HSE, VSE; - int HSWidth, VSWidth; - int SS, SE; - int doublescan = FALSE; - - if (yres < 400) { - doublescan = TRUE; - yres *= 2; - } - - HDisp = xres; - HTotal = (int)(HDisp * 1.27) & ~0x7; - HSWidth = (int)((HTotal - HDisp) / 5) & ~0x7; - HSS = HDisp + 16; - HSE = HSS + HSWidth; - VDisp = yres; - VTotal = VDisp * 1.07; - VSWidth = (VTotal / 100) + 1; - VSS = VDisp + ((int)(VTotal - VDisp) / 5) + 1; - VSE = VSS + VSWidth; - - SS = HSS + xadjust; - SE = HSE + xadjust; - - if (xadjust < 0) { - if (SS < (HDisp + 8)) { - SS = HDisp + 8; - SE = SS + HSWidth; - } - } else { - if ((HTotal - 24) < SE) { - SE = HTotal - 24; - SS = SE - HSWidth; - } - } - - HSS = SS; - HSE = SE; - - SS = VSS + yadjust; - SE = VSE + yadjust; - - if (yadjust < 0) { - if (SS < (VDisp + 3)) { - SS = VDisp + 3; - SE = SS + VSWidth; - } - } else { - if ((VTotal - 4) < SE) { - SE = VTotal - 4; - SS = SE - VSWidth; - } - } - - VSS = SS; - VSE = SE; - - crtc->HorizontalTotal = HTotal; - crtc->HorizontalSyncStart = HSS; - crtc->HorizontalSyncEnd = HSE; - crtc->VerticalTotal = VTotal; - crtc->VerticalSyncStart = VSS; - crtc->VerticalSyncEnd = VSE; - crtc->Flags = HNEG | VNEG; - - if (doublescan) { - crtc->Flags |= DOUBLESCAN; - } -} - - -/* Desc: Attempts to choose a suitable blitter. - * - * In : ptr to mode structure, software framebuffer bits - * Out : blitter funciton, or NULL - * - * Note: - - */ -static BLTFUNC -_choose_blitter (vl_mode *p, int fbbits) -{ - BLTFUNC blitter; - - if (p->mode & 0x4000) { - blitter = _can_mmx() ? vesa_l_dump_virtual_mmx : vesa_l_dump_virtual; - switch (p->bpp) { - case 8: - switch (fbbits) { - case 8: - break; - case 16: - blitter = vesa_l_dump_16_to_8; - break; - case 24: - blitter = vesa_l_dump_24_to_8; - break; - case 32: - blitter = vesa_l_dump_32_to_8; - break; - case 15: - default: - return NULL; - } - break; - case 15: - switch (fbbits) { - case 16: - blitter = vesa_l_dump_16_to_15; - break; - case 32: - blitter = vesa_l_dump_32_to_15; - break; - case 8: - case 15: - case 24: - default: - return NULL; - } - break; - case 16: - switch (fbbits) { - case 16: - break; - case 32: - blitter = vesa_l_dump_32_to_16; - break; - case 8: - case 15: - case 24: - default: - return NULL; - } - break; - case 24: - switch (fbbits) { - case 24: - break; - case 32: - blitter = vesa_l_dump_32_to_24; - break; - case 8: - case 15: - case 16: - default: - return NULL; - } - break; - case 32: - switch (fbbits) { - case 24: - blitter = vesa_l_dump_24_to_32; - break; - case 32: - break; - case 8: - case 15: - case 16: - default: - return NULL; - } - break; - } - } else { - blitter = vesa_b_dump_virtual; - switch (p->bpp) { - case 8: - switch (fbbits) { - case 8: - break; - case 16: - blitter = vesa_b_dump_16_to_8; - break; - case 24: - blitter = vesa_b_dump_24_to_8; - break; - case 32: - blitter = vesa_b_dump_32_to_8; - break; - case 15: - default: - return NULL; - } - break; - case 15: - switch (fbbits) { - case 16: - blitter = vesa_b_dump_16_to_15; - break; - case 32: - blitter = vesa_b_dump_32_to_15; - break; - case 8: - case 15: - case 24: - default: - return NULL; - } - break; - case 16: - switch (fbbits) { - case 16: - break; - case 32: - blitter = vesa_b_dump_32_to_16; - break; - case 8: - case 15: - case 24: - default: - return NULL; - } - break; - case 24: - switch (fbbits) { - case 24: - break; - case 32: - blitter = vesa_b_dump_32_to_24; - break; - case 8: - case 15: - case 16: - default: - return NULL; - } - break; - case 32: - switch (fbbits) { - case 24: - blitter = vesa_b_dump_24_to_32; - break; - case 32: - break; - case 8: - case 15: - case 16: - default: - return NULL; - } - break; - } - } - - return blitter; -} - - -/* Desc: Attempts to enter specified video mode. - * - * In : ptr to mode structure, refresh rate - * Out : 0 if success - * - * Note: - - */ -static int -vesa_entermode (vl_mode *p, int refresh, int fbbits) -{ - __dpmi_regs r; - - if (!(p->mode & 0x4000)) { - { int n; for (vesa_gran_shift = 0, n = p->gran; n; vesa_gran_shift++, n >>= 1); } - vesa_gran_mask = (1 << (--vesa_gran_shift)) - 1; - if ((unsigned)p->gran != (vesa_gran_mask + 1)) { - return !0; - } - } - - VESA.blit = _choose_blitter(p, fbbits); - if (VESA.blit == NULL) { - return !0; - } - - if (oldmode == -1) { - r.x.ax = 0x4f03; - __dpmi_int(0x10, &r); - oldmode = r.x.bx; - } - - r.x.ax = 0x4f02; - r.x.bx = p->mode; - - if (refresh && ((vesa_ver >> 8) >= 3)) { - /* VESA 3.0 stuff for controlling the refresh rate */ - CRTCInfoBlock crtc; - unsigned long vclk; - double f0; - - _crtc_timing(&crtc, p->xres, p->yres, 0, 0); - - vclk = (double)crtc.HorizontalTotal * crtc.VerticalTotal * refresh; - vclk = _closest_pixclk(p->mode, vclk); - - if (vclk != 0) { - f0 = (double)vclk / (crtc.HorizontalTotal * crtc.VerticalTotal); - /*_current_refresh_rate = (int)(f0 + 0.5);*/ - - crtc.PixelClock = vclk; - crtc.RefreshRate = refresh * 100; - - movedata(_my_ds(), (unsigned)&crtc, _stubinfo->ds_selector, 0, sizeof(crtc)); - - r.x.di = 0; - r.x.es = _stubinfo->ds_segment; - r.x.bx |= 0x0800; - } - } - - __dpmi_int(0x10, &r); - if (r.x.ax != 0x004f) { - return !0; - } - - if (p->bpp == 8) { - r.x.ax = 0x4f08; - r.x.bx = 0x0800; - __dpmi_int(0x10, &r); - if (r.x.ax == 0x004f) { - r.x.ax = 0x4f08; - r.h.bl = 0x01; - __dpmi_int(0x10, &r); - vesa_color_precision = r.h.bh; - } - } - - return 0; -} - - -/* Desc: Restores to the mode prior to first call to vesa_entermode. - * - * In : - - * Out : - - * - * Note: - - */ -static void -vesa_restore (void) -{ - __dpmi_regs r; - - if (oldmode != -1) { - if (oldmode < 0x100) { - __asm("int $0x10"::"a"(oldmode)); - } else { - r.x.ax = 0x4f02; - r.x.bx = oldmode; - __dpmi_int(0x10, &r); - } - oldmode = -1; - } -} - - -/* Desc: set one palette entry - * - * In : color index, R, G, B - * Out : - - * - * Note: uses integer values - */ -static void -vesa_setCI_i (int index, int red, int green, int blue) -{ -#if 0 - __asm("\n\ - movw $0x1010, %%ax \n\ - movb %1, %%dh \n\ - movb %2, %%ch \n\ - int $0x10 \n\ - "::"b"(index), "m"(red), "m"(green), "c"(blue):"%eax", "%edx"); -#else - outportb(0x03C8, index); - outportb(0x03C9, red); - outportb(0x03C9, green); - outportb(0x03C9, blue); -#endif -} - - -/* Desc: set one palette entry - * - * In : color index, R, G, B - * Out : - - * - * Note: uses normalized values - */ -static void -vesa_setCI_f (int index, float red, float green, float blue) -{ - float max = (1 << vesa_color_precision) - 1; - - vesa_setCI_i(index, (int)(red * max), (int)(green * max), (int)(blue * max)); -} - - -/* Desc: state retrieval - * - * In : parameter name, ptr to storage - * Out : 0 if request successfully processed - * - * Note: - - */ -static int -vesa_get (int pname, int *params) -{ - switch (pname) { - case VL_GET_CI_PREC: - params[0] = vesa_color_precision; - break; - default: - return -1; - } - return 0; -} - - -/* - * the driver - */ -vl_driver VESA = { - vesa_init, - vesa_entermode, - NULL, - vesa_setCI_f, - vesa_setCI_i, - vesa_get, - vesa_restore, - vesa_fini -}; |