diff options
Diffstat (limited to 'src/mesa/drivers/dos/dvesa.c')
| -rw-r--r-- | src/mesa/drivers/dos/dvesa.c | 549 |
1 files changed, 0 insertions, 549 deletions
diff --git a/src/mesa/drivers/dos/dvesa.c b/src/mesa/drivers/dos/dvesa.c deleted file mode 100644 index 27464e530d..0000000000 --- a/src/mesa/drivers/dos/dvesa.c +++ /dev/null @@ -1,549 +0,0 @@ -/*
- * Mesa 3-D graphics library
- * Version: 4.0
- *
- * 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 v0.1 for Mesa 4.0
- *
- * Copyright (C) 2002 - Borca Daniel
- * Email : dborca@yahoo.com
- * Web : http://www.geocities.com/dborca
- */
-
-
-#include <dpmi.h>
-#include <string.h>
-#include <stubinfo.h>
-#include <sys/exceptn.h>
-#include <sys/farptr.h>
-#include <sys/segments.h>
-
-#include "dvesa.h"
-
-
-
-typedef struct dvmode {
- int mode;
- int xres, yres;
- int scanlen;
- int bpp;
- word32 opaque;
-} dvmode;
-
-#define _16_ *(word16 *)&
-#define _32_ *(word32 *)&
-
-static int init;
-static int selector = -1;
-static int granularity;
-static dvmode modes[128];
-static void (*dv_putpixel) (void *buffer, int offset, int color);
-int (*dv_color) (const unsigned char rgba[]);
-void (*dv_dump_virtual) (void *buffer, int width, int height, int offset, int delta);
-void (*dv_clear_virtual) (void *buffer, int len, int color);
-
-extern void dv_dump_virtual_linear (void *buffer, int width, int height, int offset, int delta);
-extern void dv_dump_virtual_banked (void *buffer, int width, int height, int offset, int delta);
-
-extern void dv_clear_virtual16 (void *buffer, int len, int color);
-extern void dv_clear_virtual24 (void *buffer, int len, int color);
-extern void dv_clear_virtual32 (void *buffer, int len, int color);
-
-/* lookup table for scaling 5 bit colors up to 8 bits */
-int _rgb_scale_5[32] =
-{
- 0, 8, 16, 24, 32, 41, 49, 57,
- 65, 74, 82, 90, 98, 106, 115, 123,
- 131, 139, 148, 156, 164, 172, 180, 189,
- 197, 205, 213, 222, 230, 238, 246, 255
-};
-
-/* lookup table for scaling 6 bit colors up to 8 bits */
-int _rgb_scale_6[64] =
-{
- 0, 4, 8, 12, 16, 20, 24, 28,
- 32, 36, 40, 44, 48, 52, 56, 60,
- 64, 68, 72, 76, 80, 85, 89, 93,
- 97, 101, 105, 109, 113, 117, 121, 125,
- 129, 133, 137, 141, 145, 149, 153, 157,
- 161, 165, 170, 174, 178, 182, 186, 190,
- 194, 198, 202, 206, 210, 214, 218, 222,
- 226, 230, 234, 238, 242, 246, 250, 255
-};
-
-
-
-/*
- * colors
- */
-int dv_color15 (const unsigned char rgba[])
-{
- return ((rgba[0]>>3)<<10)|((rgba[1]>>3)<<5)|(rgba[2]>>3);
-}
-int dv_color16 (const unsigned char rgba[])
-{
- return ((rgba[0]>>3)<<11)|((rgba[1]>>2)<<5)|(rgba[2]>>3);
-}
-int dv_color32 (const unsigned char rgba[])
-{
- return (rgba[0]<<16)|(rgba[1]<<8)|(rgba[2]);
-}
-
-
-
-/*
- * getpixel + decompose
- */
-void dv_getrgba15 (void *buffer, int offset, unsigned char rgba[4])
-{
- int c = ((word16 *)buffer)[offset];
- rgba[0] = _rgb_scale_5[(c >> 10) & 0x1F];
- rgba[1] = _rgb_scale_5[(c >> 5) & 0x1F];
- rgba[2] = _rgb_scale_5[c & 0x1F];
- rgba[3] = 255;
-}
-void dv_getrgba16 (void *buffer, int offset, unsigned char rgba[4])
-{
- int c = ((word16 *)buffer)[offset];
- rgba[0] = _rgb_scale_5[(c >> 11) & 0x1F];
- rgba[1] = _rgb_scale_6[(c >> 5) & 0x3F];
- rgba[2] = _rgb_scale_5[c & 0x1F];
- rgba[3] = 255;
-}
-void dv_getrgba24 (void *buffer, int offset, unsigned char rgba[4])
-{
- int c = *(word32 *)(buffer+offset*3);
- rgba[0] = c >> 16;
- rgba[1] = c >> 8;
- rgba[2] = c;
- rgba[3] = 255;
-}
-void dv_getrgba32 (void *buffer, int offset, unsigned char rgba[4])
-{
- int c = ((word32 *)buffer)[offset];
- rgba[0] = c >> 16;
- rgba[1] = c >> 8;
- rgba[2] = c;
- rgba[3] = 255;
-}
-
-
-
-/*
- * request mapping from DPMI
- */
-static word32 _map_linear (word32 phys, word32 len)
-{
- __dpmi_meminfo meminfo;
-
- if (phys >= 0x100000) {
- /* map into linear memory */
- meminfo.address = (long)phys;
- meminfo.size = len;
- if (__dpmi_physical_address_mapping(&meminfo)) {
- return 0;
- }
- return meminfo.address;
- } else {
- /* exploit 1 -> 1 physical to linear mapping in low megabyte */
- return phys;
- }
-}
-
-
-
-/*
- * attempts to detect VESA and video modes
- */
-static word16 dv_get_vesa (void)
-{
- __dpmi_regs r;
- unsigned short *p;
- dvmode *q;
- char vesa_info[512], tmp[512];
-
- _farpokel(_stubinfo->ds_selector, 0, 0x32454256);
- r.x.ax = 0x4f00;
- r.x.di = 0;
- r.x.es = _stubinfo->ds_segment;
- __dpmi_int(0x10, &r);
- if (r.x.ax==0x004f) {
- movedata(_stubinfo->ds_selector, 0, _my_ds(), (unsigned)vesa_info, 512);
- if ((_32_ vesa_info[0])==0x41534556) {
- p = (unsigned short *)(((_16_ vesa_info[0x10])<<4) + (_16_ vesa_info[0x0e]));
- 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[0x19]) {
- case 16:
- q->bpp = tmp[0x1f] + tmp[0x21] + tmp[0x23];
- break;
- case 15:
- case 24:
- case 32:
- q->bpp = tmp[0x19];
- break;
- default:
- q->bpp = 0;
- }
- if ((r.x.ax==0x004f)&&((tmp[0]&0x11)==0x11)&&q->bpp) {
- q->xres = _16_ tmp[0x12];
- q->yres = _16_ tmp[0x14];
- q->scanlen = _16_ tmp[0x10];
- q->opaque = (_16_ tmp[4])<<10;
- if (tmp[0]&0x80) {
- *(q+1) = *q++;
- q->opaque = _32_ tmp[0x28];
- q->mode |= 0x4000;
- }
- q++;
- }
- } while (!0);
-
- return _16_ vesa_info[4];
- }
- }
-
- return 0;
-}
-
-
-
-/*
- * select a mode
- */
-dvmode *dv_select_mode (int x, int y, int width, int height, int depth, int *delta, int *offset)
-{
- dvmode *p, *q;
- unsigned int min;
-
- if ((width&3)||(height&3)||(depth<=8)) {
- return NULL;
- }
-
- if (!init) {
- init = !init;
- if (!dv_get_vesa()) {
- return NULL;
- }
- }
-
- for (min=-1, p=NULL, q=modes; q->mode!=0xffff; q++) {
- if ((q->xres>=(x+width))&&(q->yres>=(y+height))&&(q->bpp==depth)) {
- if (min>(unsigned)(q->xres*q->yres)) {
- min = q->xres*q->yres;
- p = q;
- }
- }
- }
-
- if (p) {
- int sel = -1;
- unsigned base, limit;
-
- if ((p->mode|0x4000)==(p+1)->mode) {
- p++;
- }
-
- if (selector==-1) {
- if ((selector=sel=__dpmi_allocate_ldt_descriptors(1))==-1) {
- return NULL;
- }
- }
- if (p->mode&0x4000) {
- limit = ((p->scanlen*p->yres+0xfffUL)&~0xfffUL) - 1;
- if ((base=_map_linear(p->opaque, limit))==NULL) {
- if (sel!=-1) {
- selector = -1;
- __dpmi_free_ldt_descriptor(sel);
- }
- return NULL;
- }
- dv_dump_virtual = dv_dump_virtual_linear;
- } else {
- limit = granularity = p->opaque;
- base = 0xa0000;
- dv_dump_virtual = dv_dump_virtual_banked;
- }
- __dpmi_set_segment_base_address(selector, base);
- __dpmi_set_descriptor_access_rights(selector, ((_my_ds()&3)<<5)|0x4092);
- __dpmi_set_segment_limit(selector, limit);
-
- switch (p->bpp) {
- case 15:
- dv_clear_virtual = dv_clear_virtual16;
- dv_putpixel = dv_putpixel16;
- dv_color = dv_color15;
- break;
- case 16:
- dv_clear_virtual = dv_clear_virtual16;
- dv_putpixel = dv_putpixel16;
- dv_color = dv_color16;
- break;
- case 24:
- dv_clear_virtual = dv_clear_virtual24;
- dv_putpixel = dv_putpixel24;
- dv_color = dv_color32;
- break;
- case 32:
- dv_clear_virtual = dv_clear_virtual32;
- dv_putpixel = dv_putpixel32;
- dv_color = dv_color32;
- break;
- default:
- dv_clear_virtual = NULL;
- dv_putpixel = NULL;
- }
-
- *delta = p->scanlen - ((depth+7)/8) * width;
- *offset = p->scanlen*y + ((depth+7)/8) * x;
-
- __asm__("movw $0x4f02, %%ax; int $0x10"::"b"(p->mode):"%eax");
- }
-
- return p;
-}
-
-
-
-/*
- * fill rectangle
- */
-void dv_fillrect (void *buffer, int bwidth, int x, int y, int width, int height, int color)
-{
- int i, offset;
-
- offset = y*bwidth + x;
- bwidth -= width;
- for (height+=y; y<height; y++) {
- for (i=0; i<width; i++, offset++) {
- dv_putpixel(buffer, offset, color);
- }
- offset += bwidth;
- }
-}
-
-
-
-/*
- * dv_dump_virtual_linear
- */
-__asm__("\n\
- .balign 4 \n\
- .global _dv_dump_virtual_linear \n\
-_dv_dump_virtual_linear: \n\
- pushl %fs \n\
- pushl %ebx \n\
- pushl %esi \n\
- pushl %edi \n\
- movl _selector, %fs \n\
- movl 4*4+4+0(%esp), %esi \n\
- movl 4*4+4+12(%esp), %edi \n\
- movl 4*4+4+4(%esp), %ecx \n\
- movl 4*4+4+8(%esp), %edx \n\
- movl 4*4+4+16(%esp), %ebx \n\
- shrl $2, %ecx \n\
- .balign 4 \n\
- 0: \n\
- pushl %ecx \n\
- .balign 4 \n\
- 1: \n\
- movl (%esi), %eax \n\
- addl $4, %esi \n\
- movl %eax, %fs:(%edi) \n\
- addl $4, %edi \n\
- decl %ecx \n\
- jnz 1b \n\
- popl %ecx \n\
- addl %ebx, %edi \n\
- decl %edx \n\
- jnz 0b \n\
- popl %edi \n\
- popl %esi \n\
- popl %ebx \n\
- popl %fs \n\
- ret");
-/*
- * dv_dump_virtual_banked
- */
-__asm__("\n\
- .balign 4 \n\
- .global _dv_dump_virtual_banked \n\
-_dv_dump_virtual_banked: \n\
- pushl %fs \n\
- pushl %ebx \n\
- pushl %esi \n\
- pushl %edi \n\
- pushl %ebp \n\
- movl _selector, %fs \n\
- movl 4*5+4+0(%esp), %esi \n\
- movl _granularity, %ebp \n\
- xorl %edx, %edx \n\
- movl 4*5+4+12(%esp), %eax \n\
- divl %ebp \n\
- movl %edx, %edi \n\
- pushl %eax \n\
- movl %eax, %edx \n\
- xorl %ebx, %ebx \n\
- movw $0x4f05, %ax \n\
- int $0x10 \n\
- movl 4*6+4+16(%esp), %ebx \n\
- movl 4*6+4+4(%esp), %ecx \n\
- movl 4*6+4+8(%esp), %edx \n\
- shrl $2, %ecx \n\
- .balign 4 \n\
- 0: \n\
- pushl %ecx \n\
- .balign 4 \n\
- 1: \n\
- cmpl %ebp, %edi \n\
- jb 2f \n\
- pushl %ebx \n\
- pushl %edx \n\
- incl 12(%esp) \n\
- movw $0x4f05, %ax \n\
- movl 12(%esp), %edx \n\
- xorl %ebx, %ebx \n\
- int $0x10 \n\
- popl %edx \n\
- popl %ebx \n\
- subl %ebp, %edi \n\
- 2: \n\
- movl (%esi), %eax \n\
- addl $4, %esi \n\
- movl %eax, %fs:(%edi) \n\
- addl $4, %edi \n\
- decl %ecx \n\
- jnz 1b \n\
- popl %ecx \n\
- addl %ebx, %edi \n\
- decl %edx \n\
- jnz 0b \n\
- popl %eax \n\
- popl %ebp \n\
- popl %edi \n\
- popl %esi \n\
- popl %ebx \n\
- popl %fs \n\
- ret");
-
-
-
-/*
- * dv_clear_virtual??
- */
-__asm__("\n\
- .balign 4 \n\
- .global _dv_clear_virtual16 \n\
-_dv_clear_virtual16: \n\
- movl 12(%esp), %eax \n\
- pushw %ax \n\
- pushw %ax \n\
- popl %eax \n\
- jmp _dv_clear_virtual_common\n\
- .balign 4 \n\
- .global _dv_clear_virtual32 \n\
-_dv_clear_virtual32: \n\
- movl 12(%esp), %eax \n\
- \n\
- .balign 4 \n\
- .global _dv_clear_virtual_common\n\
-_dv_clear_virtual_common: \n\
- movl 8(%esp), %ecx \n\
- movl 4(%esp), %edx \n\
- shrl $2, %ecx \n\
- .balign 4 \n\
- 0: \n\
- movl %eax, (%edx) \n\
- addl $4, %edx \n\
- decl %ecx \n\
- jnz 0b \n\
- ret");
-__asm__("\n\
- .balign 4 \n\
- .global _dv_clear_virtual24 \n\
-_dv_clear_virtual24: \n\
- movl 8(%esp), %edx \n\
- movl $0xaaaaaaab, %eax \n\
- mull %edx \n\
- movl 12(%esp), %eax \n\
- movl %edx, %ecx \n\
- movl 4(%esp), %edx \n\
- pushl %ebx \n\
- shrl %ecx \n\
- movb 18(%esp), %bl \n\
- .balign 4 \n\
- 0: \n\
- movw %ax, (%edx) \n\
- movb %bl, 2(%edx) \n\
- addl $3, %edx \n\
- decl %ecx \n\
- jnz 0b \n\
- popl %ebx \n\
- ret");
-
-
-
-/*
- * dv_putpixel??
- */
-__asm__("\n\
- .balign 4 \n\
- .global _dv_putpixel16 \n\
-_dv_putpixel16: \n\
- movl 8(%esp), %edx \n\
- shll %edx \n\
- movl 12(%esp), %eax \n\
- addl 4(%esp), %edx \n\
- movw %ax, (%edx) \n\
- ret");
-__asm__("\n\
- .balign 4 \n\
- .global _dv_putpixel32 \n\
-_dv_putpixel32: \n\
- movl 8(%esp), %edx \n\
- shll $2, %edx \n\
- movl 12(%esp), %eax \n\
- addl 4(%esp), %edx \n\
- movl %eax, (%edx) \n\
- ret");
-__asm__("\n\
- .global _dv_putpixel24 \n\
-_dv_putpixel24: \n\
- movl 8(%esp), %edx \n\
- leal (%edx, %edx, 2), %edx \n\
- movl 12(%esp), %eax \n\
- addl 4(%esp), %edx \n\
- movw %ax, (%edx) \n\
- shrl $16, %eax \n\
- movb %al, 2(%edx) \n\
- ret");
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