diff options
Diffstat (limited to 'src/mesa/drivers/dos')
| -rw-r--r-- | src/mesa/drivers/dos/dpmi.c | 123 | ||||
| -rw-r--r-- | src/mesa/drivers/dos/dpmiint.h | 48 | ||||
| -rw-r--r-- | src/mesa/drivers/dos/vbeaf.c | 607 | ||||
| -rw-r--r-- | src/mesa/drivers/dos/vbeaf.h | 813 | ||||
| -rw-r--r-- | src/mesa/drivers/dos/vbeafint.h | 50 | ||||
| -rw-r--r-- | src/mesa/drivers/dos/video.c | 625 | ||||
| -rw-r--r-- | src/mesa/drivers/dos/video.h | 52 |
7 files changed, 2318 insertions, 0 deletions
diff --git a/src/mesa/drivers/dos/dpmi.c b/src/mesa/drivers/dos/dpmi.c new file mode 100644 index 0000000000..26400ac3af --- /dev/null +++ b/src/mesa/drivers/dos/dpmi.c @@ -0,0 +1,123 @@ +/*
+ * 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 v0.3 for Mesa 4.0
+ *
+ * Copyright (C) 2002 - Borca Daniel
+ * Email : dborca@yahoo.com
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+#include <dpmi.h>
+
+#include "dpmiint.h"
+
+
+
+/* _create_linear_mapping:
+ * Maps a physical address range into linear memory.
+ */
+static int _create_linear_mapping (unsigned long *linear, unsigned long physaddr, int size)
+{
+ __dpmi_meminfo meminfo;
+
+ if (physaddr >= 0x100000) {
+ /* map into linear memory */
+ meminfo.address = physaddr;
+ meminfo.size = size;
+ if (__dpmi_physical_address_mapping(&meminfo) != 0)
+ return -1;
+
+ *linear = meminfo.address;
+ } else {
+ /* exploit 1 -> 1 physical to linear mapping in low megabyte */
+ *linear = physaddr;
+ }
+
+ return 0;
+}
+
+
+
+/* _remove_linear_mapping:
+ * Frees the DPMI resources being used to map a linear address range.
+ */
+static void _remove_linear_mapping (unsigned long *linear)
+{
+ __dpmi_meminfo meminfo;
+
+ if (*linear) {
+ if (*linear >= 0x100000) {
+ meminfo.address = *linear;
+ __dpmi_free_physical_address_mapping(&meminfo);
+ }
+
+ *linear = 0;
+ }
+}
+
+
+
+/* _create_selector:
+ * Allocates a selector to access a region of linear memory.
+ */
+int _create_selector (int *segment, unsigned long base, int size)
+{
+ /* allocate an ldt descriptor */
+ if ((*segment=__dpmi_allocate_ldt_descriptors(1)) < 0) {
+ *segment = 0;
+ return -1;
+ }
+
+ /* create the linear mapping */
+ if (_create_linear_mapping(&base, base, size)) {
+ __dpmi_free_ldt_descriptor(*segment);
+ *segment = 0;
+ return -1;
+ }
+
+ /* set the descriptor base and limit */
+ __dpmi_set_segment_base_address(*segment, base);
+ __dpmi_set_segment_limit(*segment, MAX(size-1, 0xFFFF));
+
+ return 0;
+}
+
+
+
+/* _remove_selector:
+ * Frees a DPMI segment selector.
+ */
+void _remove_selector (int *segment)
+{
+ if (*segment) {
+ unsigned long base;
+ __dpmi_get_segment_base_address(*segment, &base);
+ _remove_linear_mapping(&base);
+ __dpmi_free_ldt_descriptor(*segment);
+ *segment = 0;
+ }
+}
diff --git a/src/mesa/drivers/dos/dpmiint.h b/src/mesa/drivers/dos/dpmiint.h new file mode 100644 index 0000000000..8494ee6bb2 --- /dev/null +++ b/src/mesa/drivers/dos/dpmiint.h @@ -0,0 +1,48 @@ +/*
+ * 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 v0.3 for Mesa 4.0
+ *
+ * Copyright (C) 2002 - Borca Daniel
+ * Email : dborca@yahoo.com
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+#ifndef DPMIINT_H_included
+#define DPMIINT_H_included
+
+#ifndef NULL
+#define NULL 0
+#endif
+
+#ifndef MAX
+#define MAX(x, y) (((x)<(y))?(y):(x))
+#endif
+
+int _create_selector (int *segment, unsigned long base, int size);
+void _remove_selector (int *segment);
+
+#endif
diff --git a/src/mesa/drivers/dos/vbeaf.c b/src/mesa/drivers/dos/vbeaf.c new file mode 100644 index 0000000000..eef1793985 --- /dev/null +++ b/src/mesa/drivers/dos/vbeaf.c @@ -0,0 +1,607 @@ +/*
+ * 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 v0.2 for Mesa 4.0
+ *
+ * Copyright (C) 2002 - Borca Daniel
+ * Email : dborca@yahoo.com
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+#include <ctype.h>
+#include <dpmi.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/exceptn.h>
+#include <sys/nearptr.h>
+
+#include "dpmiint.h"
+#include "vbeaf.h"
+
+
+
+#define MMAP unsigned long
+#define NOMM 0
+#define MVAL(a) (void *)((a)-__djgpp_base_address)
+
+
+
+#define SAFE_CALL(FUNC)\
+{ \
+ int _ds, _es, _ss; \
+ \
+ __asm__ __volatile__( \
+ " movw %%ds, %w0 ; " \
+ " movw %%es, %w1 ; " \
+ " movw %%ss, %w2 ; " \
+ " movw %w3, %%ds ; " \
+ " movw %w3, %%es ; " \
+ " movw %w3, %%ss ; " \
+ \
+ : "=&q" (_ds), \
+ "=&q" (_es), \
+ "=&q" (_ss) \
+ : "q" (__djgpp_ds_alias) \
+ ); \
+ \
+ FUNC \
+ \
+ __asm__ __volatile__( \
+ "movw %w0, %%ds ; " \
+ "movw %w1, %%es ; " \
+ "movw %w2, %%ss ; " \
+ : \
+ : "q" (_ds), \
+ "q" (_es), \
+ "q" (_ss) \
+ ); \
+}
+
+#define SAFISH_CALL(FUNC) FUNC
+
+
+
+extern void _af_int86(), _af_call_rm(), _af_wrapper_end();
+
+
+
+static AF_DRIVER *af_driver = NULL; /* the VBE/AF driver */
+int _accel_active = FALSE; /* is the accelerator busy? */
+static FAF_HWPTR_DATA *faf_farptr; /* FreeBE/AF farptr data */
+static MMAP af_memmap[4] = { NOMM, NOMM, NOMM, NOMM };
+static MMAP af_banked_mem = NOMM;
+static MMAP af_linear_mem = NOMM;
+
+
+
+__inline__ fixed itofix (int x)
+{
+ return x << 16;
+}
+
+
+
+/*
+ * loads the driver from disk
+ */
+static int load_driver (char *filename)
+{
+ FILE *f;
+ size_t size;
+
+ if ((f=fopen(filename, "rb"))!=NULL) {
+ fseek(f, 0, SEEK_END);
+ size = ftell(f);
+ fseek(f, 0, SEEK_SET);
+ if ((af_driver=(AF_DRIVER *)malloc(size))!=NULL) {
+ if (fread(af_driver, size, 1, f)) {
+ return 0;
+ } else {
+ free(af_driver);
+ }
+ }
+ fclose(f);
+ }
+
+ return -1;
+}
+
+
+
+/*
+ * Calls a VBE/AF function using the version 1.0 style asm interface.
+ */
+static int call_vbeaf_asm (void *proc)
+{
+ int ret;
+
+ proc = (void *)((long)af_driver + (long)proc);
+
+ /* use gcc-style inline asm */
+ __asm__("\n\
+ pushl %%ebx \n\
+ movl %%ecx, %%ebx \n\
+ call *%%edx \n\
+ popl %%ebx \n\
+ ": "=&a" (ret) /* return value in eax */
+ : "c" (af_driver), /* VBE/AF driver in ds:ebx */
+ "d" (proc) /* function ptr in edx */
+ : "memory" /* assume everything is clobbered */
+ );
+
+ return ret;
+}
+
+
+
+/*
+ * prepares the FreeBE/AF extension functions.
+ */
+static int initialise_freebeaf_extensions (void)
+{
+ typedef unsigned long (*EXT_INIT_FUNC)(AF_DRIVER *af, unsigned long id);
+ EXT_INIT_FUNC ext_init;
+ unsigned long magic;
+ int v1, v2;
+ void *ptr;
+
+ /* safety check */
+ if (!af_driver->OemExt) {
+ return 0;
+ }
+
+ /* call the extension init function */
+ ext_init = (EXT_INIT_FUNC)((long)af_driver + (long)af_driver->OemExt);
+
+ magic = ext_init(af_driver, FAFEXT_INIT);
+
+ /* check that it returned a nice magic number */
+ v1 = (magic>>8)&0xFF;
+ v2 = magic&0xFF;
+
+ if (((magic&0xFFFF0000) != FAFEXT_MAGIC) || (!isdigit(v1)) || (!isdigit(v2))) {
+ return 0;
+ }
+
+ /* export libc and pmode functions if the driver wants them */
+ ptr = af_driver->OemExt(af_driver, FAFEXT_LIBC);
+#ifdef _FAFEXT_LIBC
+ if (ptr)
+ _fill_vbeaf_libc_exports(ptr);
+#endif
+
+ ptr = af_driver->OemExt(af_driver, FAFEXT_PMODE);
+#ifdef _FAFEXT_PMODE
+ if (ptr)
+ _fill_vbeaf_pmode_exports(ptr);
+#endif
+
+ return (v1-'0')*10 + (v2-'0');
+}
+
+
+
+/*
+ * Sets up the DPMI memory mappings required by the VBE/AF driver,
+ * returning zero on success.
+ */
+static int initialise_vbeaf_driver (int faf_ext)
+{
+ int c;
+
+ /* query driver for the FreeBE/AF farptr extension */
+ if (faf_ext > 0)
+ faf_farptr = af_driver->OemExt(af_driver, FAFEXT_HWPTR);
+ else
+ faf_farptr = NULL;
+
+ if (faf_farptr) {
+ /* use farptr access */
+ for (c=0; c<4; c++) {
+ faf_farptr->IOMemMaps[c].sel = 0;
+ faf_farptr->IOMemMaps[c].offset = 0;
+ }
+
+ faf_farptr->BankedMem.sel = 0;
+ faf_farptr->BankedMem.offset = 0;
+
+ faf_farptr->LinearMem.sel = 0;
+ faf_farptr->LinearMem.offset = 0;
+ } else {
+ /* enable nearptr access */
+ return -5;
+ }
+
+ /* create mapping for MMIO ports */
+ for (c=0; c<4; c++) {
+ if (af_driver->IOMemoryBase[c]) {
+ if ((af_memmap[c]=_create_linear_mapping(af_driver->IOMemoryBase[c], af_driver->IOMemoryLen[c]))==NULL)
+ return -4;
+
+ if (faf_farptr) {
+ /* farptr IO mapping */
+ if ((faf_farptr->IOMemMaps[c].sel=_create_selector(af_memmap[c], af_driver->IOMemoryLen[c]))<0) {
+ _remove_linear_mapping(af_memmap+c);
+ return -4;
+ }
+ faf_farptr->IOMemMaps[c].offset = 0;
+ af_driver->IOMemMaps[c] = NULL;
+ } else {
+ /* nearptr IO mapping */
+ af_driver->IOMemMaps[c] = MVAL(af_memmap[c]);
+ }
+ }
+ }
+
+ /* create mapping for banked video RAM */
+ if (af_driver->BankedBasePtr) {
+ if ((af_banked_mem=_create_linear_mapping(af_driver->BankedBasePtr, 0x10000))==NULL)
+ return -4;
+
+ if (faf_farptr) {
+ /* farptr banked vram mapping */
+ if ((faf_farptr->BankedMem.sel=_create_selector(af_banked_mem, 0x10000))<0) {
+ _remove_linear_mapping(&af_banked_mem);
+ return -4;
+ }
+ faf_farptr->BankedMem.offset = 0;
+ af_driver->BankedMem = NULL;
+ } else {
+ /* nearptr banked vram mapping */
+ af_driver->BankedMem = MVAL(af_banked_mem);
+ }
+ }
+
+ /* create mapping for linear video RAM */
+ if (af_driver->LinearBasePtr) {
+ if ((af_linear_mem=_create_linear_mapping(af_driver->LinearBasePtr, af_driver->LinearSize*1024))==NULL)
+ return -4;
+
+ if (faf_farptr) {
+ /* farptr linear vram mapping */
+ if ((faf_farptr->LinearMem.sel=_create_selector(af_linear_mem, af_driver->LinearSize*1024))<0) {
+ _remove_linear_mapping(&af_linear_mem);
+ return -4;
+ }
+ faf_farptr->LinearMem.offset = 0;
+ af_driver->LinearMem = NULL;
+ } else {
+ /* nearptr linear vram mapping */
+ af_driver->LinearMem = MVAL(af_linear_mem);
+ }
+ }
+
+ /* callback functions: why are these needed? ugly, IMHO */
+ af_driver->Int86 = (void *)_af_int86;
+ af_driver->CallRealMode = (void *)_af_call_rm;
+
+ return 0;
+}
+
+
+
+/* go_accel:
+ * Prepares the hardware for an accelerated drawing operation.
+ */
+static __inline__ void go_accel (void)
+{
+ /* turn on the accelerator */
+ if (!_accel_active) {
+ if (af_driver->DisableDirectAccess)
+ af_driver->DisableDirectAccess(af_driver);
+
+ _accel_active = TRUE;
+ }
+}
+
+
+
+void af_exit (void)
+{
+ int c;
+
+ /* undo memory mappings */
+ if (faf_farptr) {
+ for (c=0; c<4; c++)
+ _remove_selector(&faf_farptr->IOMemMaps[c].sel);
+
+ _remove_selector(&faf_farptr->BankedMem.sel);
+ _remove_selector(&faf_farptr->LinearMem.sel);
+ }
+
+ for (c=0; c<4; c++)
+ _remove_linear_mapping(af_memmap+c);
+
+ _remove_linear_mapping(&af_banked_mem);
+ _remove_linear_mapping(&af_linear_mem);
+
+ if (af_driver) {
+ free(af_driver);
+ }
+}
+
+
+
+int af_init (char *filename)
+{
+ int faf_ext, r;
+
+ if (load_driver(filename)) {
+ /* driver not found */
+ return -1;
+ }
+
+ faf_ext = initialise_freebeaf_extensions();
+
+ /* special setup for Plug and Play hardware */
+ if (call_vbeaf_asm(af_driver->PlugAndPlayInit)) {
+ af_exit();
+ /* Plug and Play initialisation failed */
+ return -2;
+ }
+
+ if ((r=initialise_vbeaf_driver(faf_ext))) {
+ af_exit();
+ /* -4, ... */
+ return r;
+ }
+
+ /* low level driver initialisation */
+ if (call_vbeaf_asm(af_driver->InitDriver)) {
+ af_exit();
+ /* VBE/AF device not present */
+ return -3;
+ }
+
+ _go32_dpmi_lock_code((void *)_af_int86, (long)_af_wrapper_end-(long)_af_int86);
+
+ return 0;
+}
+
+
+
+#include "video.h"
+
+
+
+static long page, xres, startx, starty;
+
+
+
+AF_MODE_INFO *af_getmode (int i, int *granularity)
+{
+ static AF_MODE_INFO info;
+ int mode = af_driver->AvailableModes[i];
+
+ if ((mode==-1)||af_driver->GetVideoModeInfo(af_driver, mode, &info)) {
+ return NULL;
+ } else {
+ *granularity = af_driver->BankSize * 1024;
+ return &info;
+ }
+}
+
+
+
+void *af_dump_virtual (void *buffer, int width, int height, int pitch)
+{
+ SAFISH_CALL(
+ go_accel();
+
+ af_driver->BitBltSys(af_driver, buffer, pitch, 0, 0, width, height, startx, starty, 0);
+ );
+ return buffer;
+}
+
+
+
+void af_switch_bank (int bank)
+{
+ af_driver->SetBank(af_driver, bank);
+}
+
+
+
+int af_flip (void)
+{
+ SAFISH_CALL(
+ go_accel();
+
+ af_driver->SetDisplayStart(af_driver, page*xres, 0, 1);
+ );
+ if (page ^= 1) {
+ startx += xres;
+ } else {
+ startx -= xres;
+ }
+
+ return page;
+}
+
+
+
+void af_fillrect (void *buffer, int x, int y, int width, int height, int color)
+{
+ (void)buffer;
+ SAFISH_CALL(
+ go_accel();
+
+ af_driver->DrawRect(af_driver, color, startx+x, starty+y, width, height);
+ );
+}
+
+
+
+void af_triangle (int x1, int y1, int x2, int y2, int x3, int y3, int color)
+{
+ AF_TRAP trap;
+
+ /* sort along the vertical axis */
+ #define TRI_SWAP(a, b) \
+ { \
+ int tmp = x##a; \
+ x##a = x##b; \
+ x##b = tmp; \
+ \
+ tmp = y##a; \
+ y##a = y##b; \
+ y##b = tmp; \
+ }
+
+ if (y2 < y1)
+ TRI_SWAP(1, 2);
+
+ if (y3 < y1) {
+ TRI_SWAP(1, 3);
+ TRI_SWAP(2, 3);
+ } else if (y3 < y2)
+ TRI_SWAP(2, 3);
+
+ SAFISH_CALL(
+ go_accel();
+
+ if (y2 > y1) {
+ /* draw the top half of the triangle as one trapezoid */
+ trap.y = y1+starty;
+ trap.count = y2-y1;
+ trap.x1 = trap.x2 = itofix(x1+startx);
+ trap.slope1 = itofix(x2-x1) / (y2-y1);
+ trap.slope2 = itofix(x3-x1) / (y3-y1);
+
+ if (trap.slope1 < 0)
+ trap.x1 += MIN(trap.slope1+itofix(1), 0);
+
+ if (trap.slope2 < 0)
+ trap.x2 += MIN(trap.slope2+itofix(1), 0);
+
+ if (trap.slope1 > trap.slope2)
+ trap.x1 += MAX(ABS(trap.slope1), itofix(1));
+ else
+ trap.x2 += MAX(ABS(trap.slope2), itofix(1));
+
+ af_driver->DrawTrap(af_driver, color, &trap);
+
+ if (y3 > y2) {
+ /* draw the bottom half as a second trapezoid */
+ if (trap.slope1 < 0)
+ trap.x1 -= MIN(trap.slope1+itofix(1), 0);
+
+ if (trap.slope1 > trap.slope2)
+ trap.x1 -= MAX(ABS(trap.slope1), itofix(1));
+
+ trap.count = y3-y2;
+ trap.slope1 = itofix(x3-x2) / (y3-y2);
+
+ if (trap.slope1 < 0)
+ trap.x1 += MIN(trap.slope1+itofix(1), 0);
+
+ if (trap.x1 > trap.x2)
+ trap.x1 += MAX(ABS(trap.slope1), itofix(1));
+
+ af_driver->DrawTrap(af_driver, color, &trap);
+ }
+ } else if (y3 > y2) {
+ /* we can draw the entire thing with a single trapezoid */
+ trap.y = y1+starty;
+ trap.count = y3-y2;
+ trap.x1 = itofix(x2+startx);
+ trap.x2 = itofix(x1+startx);
+ trap.slope1 = itofix(x3-x2) / (y3-y2);
+ trap.slope2 = (y3 > y1) ? (itofix(x3-x1) / (y3-y1)) : 0;
+
+ if (trap.slope1 < 0)
+ trap.x1 += MIN(trap.slope1+itofix(1), 0);
+
+ if (trap.slope2 < 0)
+ trap.x2 += MIN(trap.slope2+itofix(1), 0);
+
+ if (trap.x1 > trap.x2)
+ trap.x1 += MAX(ABS(trap.slope1), itofix(1));
+ else
+ trap.x2 += MAX(ABS(trap.slope2), itofix(1));
+
+ af_driver->DrawTrap(af_driver, color, &trap);
+ }
+ );
+}
+
+
+
+int af_setup_mode (int mode, int caps)
+{
+ if (CHECK_SOFTDB(caps) && af_driver->BitBltSys) {
+ vl_flip = af_dump_virtual;
+ }
+ if (af_driver->SetBank) {
+ vl_switch_bank = af_switch_bank;
+ }
+ if (!CHECK_SOFTDB(caps) && af_driver->DrawRect) {
+ vl_clear = af_fillrect;
+ }
+
+ if (CHECK_SINGLE(caps) || CHECK_SOFTDB(caps)) {
+ page = 0;
+ } else {
+ page = 1;
+ }
+
+ return (mode&0x4000)?faf_farptr->LinearMem.sel:faf_farptr->BankedMem.sel;
+}
+
+
+
+int af_setup_buffer (int x, int y)
+{
+ startx = x + page*xres;
+ starty = y;
+
+ return page;
+}
+
+
+
+void *af_getprim (int primitive)
+{
+ switch (primitive) {
+ case TRI_RGB_FLAT:
+ return af_driver->DrawTrap?(void *)af_triangle:NULL;
+ default:
+ return NULL;
+ }
+}
+
+
+
+int af_enter_mode (int mode, int width, int height)
+{
+ long wret;
+ if (!af_driver->SetVideoMode(af_driver, mode, width, height, &wret, 1, NULL)) {
+ xres = width/2;
+ return wret;
+ } else {
+ return -1;
+ }
+}
diff --git a/src/mesa/drivers/dos/vbeaf.h b/src/mesa/drivers/dos/vbeaf.h new file mode 100644 index 0000000000..70ab669b48 --- /dev/null +++ b/src/mesa/drivers/dos/vbeaf.h @@ -0,0 +1,813 @@ +/*
+ * ______ ____ ______ _____ ______
+ * | ____| | _ \| ____| / / _ \| ____|
+ * | |__ _ __ ___ ___| |_) | |__ / / |_| | |__
+ * | __| '__/ _ \/ _ \ _ <| __| / /| _ | __|
+ * | | | | | __/ __/ |_) | |____ / / | | | | |
+ * |_| |_| \___|\___|____/|______/_/ |_| |_|_|
+ *
+ *
+ * VBE/AF structure definitions and constants.
+ *
+ * See freebe.txt for copyright information.
+ */
+
+
+#define FREEBE_VERSION "v1.2"
+
+
+#ifndef ALLEGRO_H
+
+
+#include <pc.h>
+
+
+#define NULL 0
+
+#define TRUE 1
+#define FALSE 0
+
+#define MIN(x,y) (((x) < (y)) ? (x) : (y))
+#define MAX(x,y) (((x) > (y)) ? (x) : (y))
+#define MID(x,y,z) MAX((x), MIN((y), (z)))
+
+#define ABS(x) (((x) >= 0) ? (x) : (-(x)))
+
+#define BYTES_PER_PIXEL(bpp) (((int)(bpp) + 7) / 8)
+
+typedef long fixed;
+
+
+#endif
+
+
+
+/* mode attribute flags */
+#define afHaveMultiBuffer 0x0001 /* multiple buffers */
+#define afHaveVirtualScroll 0x0002 /* virtual scrolling */
+#define afHaveBankedBuffer 0x0004 /* supports banked framebuffer */
+#define afHaveLinearBuffer 0x0008 /* supports linear framebuffer */
+#define afHaveAccel2D 0x0010 /* supports 2D acceleration */
+#define afHaveDualBuffers 0x0020 /* uses dual buffers */
+#define afHaveHWCursor 0x0040 /* supports a hardware cursor */
+#define afHave8BitDAC 0x0080 /* 8 bit palette DAC */
+#define afNonVGAMode 0x0100 /* not a VGA mode */
+#define afHaveDoubleScan 0x0200 /* supports double scanning */
+#define afHaveInterlaced 0x0400 /* supports interlacing */
+#define afHaveTripleBuffer 0x0800 /* supports triple buffering */
+#define afHaveStereo 0x1000 /* supports stereo LCD glasses */
+#define afHaveROP2 0x2000 /* supports ROP2 mix codes */
+#define afHaveHWStereoSync 0x4000 /* hardware stereo signalling */
+#define afHaveEVCStereoSync 0x8000 /* HW stereo sync via EVC connector */
+
+
+
+/* drawing modes */
+typedef enum
+{
+ AF_FORE_MIX = 0, /* background pixels use the foreground mix */
+ AF_REPLACE_MIX = 0, /* solid drawing mode */
+ AF_AND_MIX, /* bitwise AND mode */
+ AF_OR_MIX, /* bitwise OR mode */
+ AF_XOR_MIX, /* bitwise XOR mode */
+ AF_NOP_MIX, /* nothing is drawn */
+
+ /* below here need only be supported if you set the afHaveROP2 flag */
+ AF_R2_BLACK = 0x10,
+ AF_R2_NOTMERGESRC,
+ AF_R2_MASKNOTSRC,
+ AF_R2_NOTCOPYSRC,
+ AF_R2_MASKSRCNOT,
+ AF_R2_NOT,
+ AF_R2_XORSRC,
+ AF_R2_NOTMASKSRC,
+ AF_R2_MASKSRC,
+ AF_R2_NOTXORSRC,
+ AF_R2_NOP,
+ AF_R2_MERGENOTSRC,
+ AF_R2_COPYSRC,
+ AF_R2_MERGESRCNOT,
+ AF_R2_MERGESRC,
+ AF_R2_WHITE,
+} AF_mixModes;
+
+
+
+/* fixed point coordinate pair */
+typedef struct AF_FIX_POINT
+{
+ fixed x;
+ fixed y;
+} AF_FIX_POINT;
+
+
+
+/* trapezium information block */
+typedef struct AF_TRAP
+{
+ unsigned long y;
+ unsigned long count;
+ fixed x1;
+ fixed x2;
+ fixed slope1;
+ fixed slope2;
+} AF_TRAP;
+
+
+
+/* hardware cursor description */
+typedef struct AF_CURSOR
+{
+ unsigned long xorMask[32];
+ unsigned long andMask[32];
+ unsigned long hotx;
+ unsigned long hoty;
+} AF_CURSOR;
+
+
+
+/* color value */
+typedef struct AF_PALETTE
+{
+ unsigned char blue;
+ unsigned char green;
+ unsigned char red;
+ unsigned char alpha;
+} AF_PALETTE;
+
+
+
+/* CRTC information block for refresh rate control */
+typedef struct AF_CRTCInfo
+{
+ unsigned short HorizontalTotal __attribute__ ((packed)); /* horizontal total (pixels) */
+ unsigned short HorizontalSyncStart __attribute__ ((packed)); /* horizontal sync start position */
+ unsigned short HorizontalSyncEnd __attribute__ ((packed)); /* horizontal sync end position */
+ unsigned short VerticalTotal __attribute__ ((packed)); /* vertical total (lines) */
+ unsigned short VerticalSyncStart __attribute__ ((packed)); /* vertical sync start position */
+ unsigned short VerticalSyncEnd __attribute__ ((packed)); /* vertical sync end position */
+ unsigned char Flags __attribute__ ((packed)); /* initialisation flags for mode */
+ unsigned int PixelClock __attribute__ ((packed)); /* pixel clock in units of Hz */
+ unsigned short RefreshRate __attribute__ ((packed)); /* expected refresh rate in .01Hz */
+ unsigned short NumBuffers __attribute__ ((packed)); /* number of display buffers */
+} AF_CRTCInfo;
+
+
+
+/* definitions for CRTC information block flags */
+#define afDoubleScan 0x0001 /* enable double scanned mode */
+#define afInterlaced 0x0002 /* enable interlaced mode */
+#define afHSyncNeg 0x0004 /* horizontal sync is negative */
+#define afVSyncNeg 0x0008 /* vertical sync is negative */
+
+
+
+typedef unsigned char AF_PATTERN; /* pattern array elements */
+typedef unsigned AF_STIPPLE; /* 16 bit line stipple pattern */
+typedef unsigned AF_COLOR; /* packed color values */
+
+
+
+/* mode information structure */
+typedef struct AF_MODE_INFO
+{
+ unsigned short Attributes __attribute__ ((packed));
+ unsigned short XResolution __attribute__ ((packed));
+ unsigned short YResolution __attribute__ ((packed));
+ unsigned short BytesPerScanLine __attribute__ ((packed));
+ unsigned short BitsPerPixel __attribute__ ((packed));
+ unsigned short MaxBuffers __attribute__ ((packed));
+ unsigned char RedMaskSize __attribute__ ((packed));
+ unsigned char RedFieldPosition __attribute__ ((packed));
+ unsigned char GreenMaskSize __attribute__ ((packed));
+ unsigned char GreenFieldPosition __attribute__ ((packed));
+ unsigned char BlueMaskSize __attribute__ ((packed));
+ unsigned char BlueFieldPosition __attribute__ ((packed));
+ unsigned char RsvdMaskSize __attribute__ ((packed));
+ unsigned char RsvdFieldPosition __attribute__ ((packed));
+ unsigned short MaxBytesPerScanLine __attribute__ ((packed));
+ unsigned short MaxScanLineWidth __attribute__ ((packed));
+
+ /* VBE/AF 2.0 extensions */
+ unsigned short LinBytesPerScanLine __attribute__ ((packed));
+ unsigned char BnkMaxBuffers __attribute__ ((packed));
+ unsigned char LinMaxBuffers __attribute__ ((packed));
+ unsigned char LinRedMaskSize __attribute__ ((packed));
+ unsigned char LinRedFieldPosition __attribute__ ((packed));
+ unsigned char LinGreenMaskSize __attribute__ ((packed));
+ unsigned char LinGreenFieldPosition __attribute__ ((packed));
+ unsigned char LinBlueMaskSize __attribute__ ((packed));
+ unsigned char LinBlueFieldPosition __attribute__ ((packed));
+ unsigned char LinRsvdMaskSize __attribute__ ((packed));
+ unsigned char LinRsvdFieldPosition __attribute__ ((packed));
+ unsigned long MaxPixelClock __attribute__ ((packed));
+ unsigned long VideoCapabilities __attribute__ ((packed));
+ unsigned short VideoMinXScale __attribute__ ((packed));
+ unsigned short VideoMinYScale __attribute__ ((packed));
+ unsigned short VideoMaxXScale __attribute__ ((packed));
+ unsigned short VideoMaxYScale __attribute__ ((packed));
+
+ unsigned char reserved[76] __attribute__ ((packed));
+
+} AF_MODE_INFO;
+
+
+
+#define DC struct AF_DRIVER *dc
+
+
+
+/* main VBE/AF driver structure */
+typedef struct AF_DRIVER
+{
+ /* header */
+ char Signature[12] __attribute__ ((packed));
+ unsigned long Version __attribute__ ((packed));
+ unsigned long DriverRev __attribute__ ((packed));
+ char OemVendorName[80] __attribute__ ((packed));
+ char OemCopyright[80] __attribute__ ((packed));
+ short *AvailableModes __attribute__ ((packed));
+ unsigned long TotalMemory __attribute__ ((packed));
+ unsigned long Attributes __attribute__ ((packed));
+ unsigned long BankSize __attribute__ ((packed));
+ unsigned long BankedBasePtr __attribute__ ((packed));
+ unsigned long LinearSize __attribute__ ((packed));
+ unsigned long LinearBasePtr __attribute__ ((packed));
+ unsigned long LinearGranularity __attribute__ ((packed));
+ unsigned short *IOPortsTable __attribute__ ((packed));
+ unsigned long IOMemoryBase[4] __attribute__ ((packed));
+ unsigned long IOMemoryLen[4] __attribute__ ((packed));
+ unsigned long LinearStridePad __attribute__ ((packed));
+ unsigned short PCIVendorID __attribute__ ((packed));
+ unsigned short PCIDeviceID __attribute__ ((packed));
+ unsigned short PCISubSysVendorID __attribute__ ((packed));
+ unsigned short PCISubSysID __attribute__ ((packed));
+ unsigned long Checksum __attribute__ ((packed));
+ unsigned long res2[6] __attribute__ ((packed));
+
+ /* near pointers mapped by the application */
+ void *IOMemMaps[4] __attribute__ ((packed));
+ void *BankedMem __attribute__ ((packed));
+ void *LinearMem __attribute__ ((packed));
+ unsigned long res3[5] __attribute__ ((packed));
+
+ /* driver state variables */
+ unsigned long BufferEndX __attribute__ ((packed));
+ unsigned long BufferEndY __attribute__ ((packed));
+ unsigned long OriginOffset __attribute__ ((packed));
+ unsigned long OffscreenOffset __attribute__ ((packed));
+ unsigned long OffscreenStartY __attribute__ ((packed));
+ unsigned long OffscreenEndY __attribute__ ((packed));
+ unsigned long res4[10] __attribute__ ((packed));
+
+ /* relocatable 32 bit bank switch routine, for Windows (ugh!) */
+ unsigned long SetBank32Len __attribute__ ((packed));
+ void *SetBank32 __attribute__ ((packed));
+
+ /* callback functions provided by the application */
+ void *Int86 __attribute__ ((packed));
+ void *CallRealMode __attribute__ ((packed));
+
+ /* main driver setup routine */
+ void *InitDriver __attribute__ ((packed));
+
+ /* VBE/AF 1.0 asm interface (obsolete and not supported by Allegro) */
+ void *af10Funcs[40] __attribute__ ((packed));
+
+ /* VBE/AF 2.0 extensions */
+ void *PlugAndPlayInit __attribute__ ((packed));
+
+ /* extension query function, specific to FreeBE/AF */
+ void *(*OemExt)(DC, unsigned long id);
+
+ /* extension hook for implementing additional VESA interfaces */
+ void *SupplementalExt __attribute__ ((packed));
+
+ /* device driver functions */
+ long (*GetVideoModeInfo)(DC, short mode, AF_MODE_INFO *modeInfo);
+ long (*SetVideoMode)(DC, short mode, long virtualX, long virtualY, long *bytesPerLine, int numBuffers, AF_CRTCInfo *crtc);
+ void (*RestoreTextMode)(DC);
+ long (*GetClosestPixelClock)(DC, short mode, unsigned long pixelClock);
+ void (*SaveRestoreState)(DC, int subfunc, void *saveBuf);
+ void (*SetDisplayStart)(DC, long x, long y, long waitVRT);
+ void (*SetActiveBuffer)(DC, long index);
+ void (*SetVisibleBuffer)(DC, long index, long waitVRT);
+ int (*GetDisplayStartStatus)(DC);
+ void (*EnableStereoMode)(DC, int enable);
+ void (*SetPaletteData)(DC, AF_PALETTE *pal, long num, long index, long waitVRT);
+ void (*SetGammaCorrectData)(DC, AF_PALETTE *pal, long num, long index);
+ void (*SetBank)(DC, long bank);
+
+ /* hardware cursor functions */
+ void (*SetCursor)(DC, AF_CURSOR *cursor);
+ void (*SetCursorPos)(DC, long x, long y);
+ void (*SetCursorColor)(DC, unsigned char red, unsigned char green, unsigned char blue);
+ void (*ShowCursor)(DC, long visible);
+
+ /* 2D rendering functions */
+ void (*WaitTillIdle)(DC);
+ void (*EnableDirectAccess)(DC);
+ void (*DisableDirectAccess)(DC);
+ void (*SetMix)(DC, long foreMix, long backMix);
+ void (*Set8x8MonoPattern)(DC, unsigned char *pattern);
+ void (*Set8x8ColorPattern)(DC, int index, unsigned long *pattern);
+ void (*Use8x8ColorPattern)(DC, int index);
+ void (*SetLineStipple)(DC, unsigned short stipple);
+ void (*SetLineStippleCount)(DC, unsigned long count);
+ void (*SetClipRect)(DC, long minx, long miny, long maxx, long maxy);
+ void (*DrawScan)(DC, long color, long y, long x1, long x2);
+ void (*DrawPattScan)(DC, long foreColor, long backColor, long y, long x1, long x2);
+ void (*DrawColorPattScan)(DC, long y, long x1, long x2);
+ void (*DrawScanList)(DC, unsigned long color, long y, long length, short *scans);
+ void (*DrawPattScanList)(DC, unsigned long foreColor, unsigned long backColor, long y, long length, short *scans);
+ void (*DrawColorPattScanList)(DC, long y, long length, short *scans);
+ void (*DrawRect)(DC, unsigned long color, long left, long top, long width, long height);
+ void (*DrawPattRect)(DC, unsigned long foreColor, unsigned long backColor, long left, long top, long width, long height);
+ void (*DrawColorPattRect)(DC, long left, long top, long width, long height);
+ void (*DrawLine)(DC, unsigned long color, fixed x1, fixed y1, fixed x2, fixed y2);
+ void (*DrawStippleLine)(DC, unsigned long foreColor, unsigned long backColor, fixed x1, fixed y1, fixed x2, fixed y2);
+ void (*DrawTrap)(DC, unsigned long color, AF_TRAP *trap);
+ void (*DrawTri)(DC, unsigned long color, AF_FIX_POINT *v1, AF_FIX_POINT *v2, AF_FIX_POINT *v3, fixed xOffset, fixed yOffset);
+ void (*DrawQuad)(DC, unsigned long color, AF_FIX_POINT *v1, AF_FIX_POINT *v2, AF_FIX_POINT *v3, AF_FIX_POINT *v4, fixed xOffset, fixed yOffset);
+ void (*PutMonoImage)(DC, long foreColor, long backColor, long dstX, long dstY, long byteWidth, long srcX, long srcY, long width, long height, unsigned char *image);
+ void (*PutMonoImageLin)(DC, long foreColor, long backColor, long dstX, long dstY, long byteWidth, long srcX, long srcY, long width, long height, long imageOfs);
+ void (*PutMonoImageBM)(DC, long foreColor, long backColor, long dstX, long dstY, long byteWidth, long srcX, long srcY, long width, long height, long imagePhysAddr);
+ void (*BitBlt)(DC, long left, long top, long width, long height, long dstLeft, long dstTop, long op);
+ void (*BitBltSys)(DC, void *srcAddr, long srcPitch, long srcLeft, long srcTop, long width, long height, long dstLeft, long dstTop, long op);
+ void (*BitBltLin)(DC, long srcOfs, long srcPitch, long srcLeft, long srcTop, long width, long height, long dstLeft, long dstTop, long op);
+ void (*BitBltBM)(DC, long srcPhysAddr, long srcPitch, long srcLeft, long srcTop, long width, long height, long dstLeft, long dstTop, long op);
+ void (*SrcTransBlt)(DC, long left, long top, long width, long height, long dstLeft, long dstTop, long op, unsigned long transparent);
+ void (*SrcTransBltSys)(DC, void *srcAddr, long srcPitch, long srcLeft, long srcTop, long width, long height, long dstLeft, long dstTop, long op, unsigned long transparent);
+ void (*SrcTransBltLin)(DC, long srcOfs, long srcPitch, long srcLeft, long srcTop, long width, long height, long dstLeft, long dstTop, long op, unsigned long transparent);
+ void (*SrcTransBltBM)(DC, long srcPhysAddr, long srcPitch, long srcLeft, long srcTop, long width, long height, long dstLeft, long dstTop, long op, unsigned long transparent);
+ void (*DstTransBlt)(DC, long left, long top, long width, long height, long dstLeft, long dstTop, long op, unsigned long transparent);
+ void (*DstTransBltSys)(DC, void *srcAddr, long srcPitch, long srcLeft, long srcTop, long width, long height, long dstLeft, long dstTop, long op, unsigned long transparent);
+ void (*DstTransBltLin)(DC, long srcOfs, long srcPitch, long srcLeft, long srcTop, long width, long height, long dstLeft, long dstTop, long op, unsigned long transparent);
+ void (*DstTransBltBM)(DC, long srcPhysAddr, long srcPitch, long srcLeft, long srcTop, long width, long height, long dstLeft, long dstTop, long op, unsigned long transparent);
+ void (*StretchBlt)(DC, long srcLeft, long srcTop, long srcWidth, long srcHeight, long dstLeft, long dstTop, long dstWidth, long dstHeight, long flags, long op);
+ void (*StretchBltSys)(DC, void *srcAddr, long srcPitch, long srcLeft, long srcTop, long srcWidth, long srcHeight, long dstLeft, long dstTop, long dstWidth, long dstHeight, long flags, long op);
+ void (*StretchBltLin)(DC, long srcOfs, long srcPitch, long srcLeft, long srcTop, long srcWidth, long srcHeight, long dstLeft, long dstTop, long dstWidth, long dstHeight, long flags, long op);
+ void (*StretchBltBM)(DC, long srcPhysAddr, long srcPitch, long srcLeft, long srcTop, long srcWidth, long srcHeight, long dstLeft, long dstTop, long dstWidth, long dstHeight, long flags, long op);
+ void (*SrcTransStretchBlt)(DC, long srcLeft, long srcTop, long srcWidth, long srcHeight, long dstLeft, long dstTop, long dstWidth, long dstHeight, long flags, long op, unsigned long transparent);
+ void (*SrcTransStretchBltSys)(DC, void *srcAddr, long srcPitch, long srcLeft, long srcTop, long srcWidth, long srcHeight, long dstLeft, long dstTop, long dstWidth, long dstHeight, long flags, long op, unsigned long transparent);
+ void (*SrcTransStretchBltLin)(DC, long srcOfs, long srcPitch, long srcLeft, long srcTop, long srcWidth, long srcHeight, long dstLeft, long dstTop, long dstWidth, long dstHeight, long flags, long op, unsigned long transparent);
+ void (*SrcTransStretchBltBM)(DC, long srcPhysAddr, long srcPitch, long srcLeft, long srcTop, long srcWidth, long srcHeight, long dstLeft, long dstTop, long dstWidth, long dstHeight, long flags, long op, unsigned long transparent);
+ void (*DstTransStretchBlt)(DC, long srcLeft, long srcTop, long srcWidth, long srcHeight, long dstLeft, long dstTop, long dstWidth, long dstHeight, long flags, long op, unsigned long transparent);
+ void (*DstTransStretchBltSys)(DC, void *srcAddr, long srcPitch, long srcLeft, long srcTop, long srcWidth, long srcHeight, long dstLeft, long dstTop, long dstWidth, long dstHeight, long flags, long op, unsigned long transparent);
+ void (*DstTransStretchBltLin)(DC, long srcOfs, long srcPitch, long srcLeft, long srcTop, long srcWidth, long srcHeight, long dstLeft, long dstTop, long dstWidth, long dstHeight, long flags, long op, unsigned long transparent);
+ void (*DstTransStretchBltBM)(DC, long srcPhysAddr, long srcPitch, long srcLeft, long srcTop, long srcWidth, long srcHeight, long dstLeft, long dstTop, long dstWidth, long dstHeight, long flags, long op, unsigned long transparent);
+
+ /* hardware video functions */
+ void (*SetVideoInput)(DC, long width, long height, long format);
+ void *(*SetVideoOutput)(DC, long left, long top, long width, long height);
+ void (*StartVideoFrame)(DC);
+ void (*EndVideoFrame)(DC);
+
+} AF_DRIVER;
+
+
+
+#undef DC
+
+
+
+/* register data for calling real mode interrupts (DPMI format) */
+typedef union
+{
+ struct {
+ unsigned long edi;
+ unsigned long esi;
+ unsigned long ebp;
+ unsigned long res;
+ unsigned long ebx;
+ unsigned long edx;
+ unsigned long ecx;
+ unsigned long eax;
+ } d;
+ struct {
+ unsigned short di, di_hi;
+ unsigned short si, si_hi;
+ unsigned short bp, bp_hi;
+ unsigned short res, res_hi;
+ unsigned short bx, bx_hi;
+ unsigned short dx, dx_hi;
+ unsigned short cx, cx_hi;
+ unsigned short ax, ax_hi;
+ unsigned short flags;
+ unsigned short es;
+ unsigned short ds;
+ unsigned short fs;
+ unsigned short gs;
+ unsigned short ip;
+ unsigned short cs;
+ unsigned short sp;
+ unsigned short ss;
+ } x;
+ struct {
+ unsigned char edi[4];
+ unsigned char esi[4];
+ unsigned char ebp[4];
+ unsigned char res[4];
+ unsigned char bl, bh, ebx_b2, ebx_b3;
+ unsigned char dl, dh, edx_b2, edx_b3;
+ unsigned char cl, ch, ecx_b2, ecx_b3;
+ unsigned char al, ah, eax_b2, eax_b3;
+ } h;
+} RM_REGS;
+
+
+
+/* our API extensions use 32 bit magic numbers */
+#define FAF_ID(a,b,c,d) ((a<<24) | (b<<16) | (c<<8) | d)
+
+
+
+/* ID code and magic return value for initialising the extensions */
+#define FAFEXT_INIT FAF_ID('I','N','I','T')
+#define FAFEXT_MAGIC FAF_ID('E','X', 0, 0)
+#define FAFEXT_MAGIC1 FAF_ID('E','X','0','1')
+
+
+
+/* extension providing a hardware-specific way to access video memory */
+#define FAFEXT_HWPTR FAF_ID('H','P','T','R')
+
+
+#if (defined __i386__) && (!defined NO_HWPTR)
+
+
+/* use seg+offset far pointers on i386 */
+typedef struct FAF_HWPTR
+{
+ int sel;
+ unsigned long offset;
+} FAF_HWPTR;
+
+#include <sys/farptr.h>
+#include <sys/segments.h>
+
+#define hwptr_init(ptr, addr) \
+ if ((addr) && (!(ptr).sel)) { \
+ (ptr).sel = _my_ds(); \
+ (ptr).offset = (unsigned long)(addr); \
+ }
+
+#define hwptr_pokeb(ptr, off, val) _farpokeb((ptr).sel, (ptr).offset+(off), (val))
+#define hwptr_pokew(ptr, off, val) _farpokew((ptr).sel, (ptr).offset+(off), (val))
+#define hwptr_pokel(ptr, off, val) _farpokel((ptr).sel, (ptr).offset+(off), (val))
+
+#define hwptr_peekb(ptr, off) _farpeekb((ptr).sel, (ptr).offset+(off))
+#define hwptr_peekw(ptr, off) _farpeekw((ptr).sel, (ptr).offset+(off))
+#define hwptr_peekl(ptr, off) _farpeekl((ptr).sel, (ptr).offset+(off))
+
+#define hwptr_select(ptr) _farsetsel((ptr).sel)
+#define hwptr_unselect(ptr) (ptr).sel = _fargetsel()
+
+#define hwptr_nspokeb(ptr, off, val) _farnspokeb((ptr).offset+(off), (val))
+#define hwptr_nspokew(ptr, off, val) _farnspokew((ptr).offset+(off), (val))
+#define hwptr_nspokel(ptr, off, val) _farnspokel((ptr).offset+(off), (val))
+
+#define hwptr_nspeekb(ptr, off) _farnspeekb((ptr).offset+(off))
+#define hwptr_nspeekw(ptr, off) _farnspeekw((ptr).offset+(off))
+#define hwptr_nspeekl(ptr, off) _farnspeekl((ptr).offset+(off))
+
+
+#else
+
+
+/* use regular C pointers on other platforms or if hwptr is disabled */
+typedef void *FAF_HWPTR;
+
+#define hwptr_init(ptr, addr) ptr = (FAF_HWPTR)(addr)
+
+#define hwptr_pokeb(ptr, off, val) *((volatile unsigned char *)((ptr)+(off))) = (val)
+#define hwptr_pokew(ptr, off, val) *((volatile unsigned short *)((ptr)+(off))) = (val)
+#define hwptr_pokel(ptr, off, val) *((volatile unsigned long *)((ptr)+(off))) = (val)
+
+#define hwptr_peekb(ptr, off) (*((volatile unsigned char *)((ptr)+(off))))
+#define hwptr_peekw(ptr, off) (*((volatile unsigned short *)((ptr)+(off))))
+#define hwptr_peekl(ptr, off) (*((volatile unsigned long *)((ptr)+(off))))
+
+#define hwptr_select(ptr)
+#define hwptr_unselect(ptr) (ptr) = NULL
+
+#define hwptr_nspokeb(ptr, off, val) *((volatile unsigned char *)((ptr)+(off))) = (val)
+#define hwptr_nspokew(ptr, off, val) *((volatile unsigned short *)((ptr)+(off))) = (val)
+#define hwptr_nspokel(ptr, off, val) *((volatile unsigned long *)((ptr)+(off))) = (val)
+
+#define hwptr_nspeekb(ptr, off) (*((volatile unsigned char *)((ptr)+(off))))
+#define hwptr_nspeekw(ptr, off) (*((volatile unsigned short *)((ptr)+(off))))
+#define hwptr_nspeekl(ptr, off) (*((volatile unsigned long *)((ptr)+(off))))
+
+
+#endif /* hwptr structure definitions */
+
+
+/* interface structure containing hardware pointer data */
+typedef struct FAF_HWPTR_DATA
+{
+ FAF_HWPTR IOMemMaps[4];
+ FAF_HWPTR BankedMem;
+ FAF_HWPTR LinearMem;
+} FAF_HWPTR_DATA;
+
+
+
+/* extension providing a way for the config program to set driver variables */
+#define FAFEXT_CONFIG FAF_ID('C','O','N','F')
+
+
+
+/* config variable, so the install program can communicate with the driver */
+typedef struct FAF_CONFIG_DATA
+{
+ unsigned long id;
+ unsigned long value;
+} FAF_CONFIG_DATA;
+
+
+
+/* config variable ID used to enable/disable specific hardware functions */
+#define FAF_CFG_FEATURES FAF_ID('F','E','A','T')
+
+
+
+/* bitfield values for the FAF_CFG_FEATURES variable */
+#define fafLinear 0x00000001
+#define fafBanked 0x00000002
+#define fafHWCursor 0x00000004
+#define fafDrawScan 0x00000008
+#define fafDrawPattScan 0x00000010
+#define fafDrawColorPattScan 0x00000020
+#define fafDrawScanList 0x00000040
+#define fafDrawPattScanList 0x00000080
+#define fafDrawColorPattScanList 0x00000100
+#define fafDrawRect 0x00000200
+#define fafDrawPattRect 0x00000400
+#define fafDrawColorPattRect 0x00000800
+#define fafDrawLine 0x00001000
+#define fafDrawStippleLine 0x00002000
+#define fafDrawTrap 0x00004000
+#define fafDrawTri 0x00008000
+#define fafDrawQuad 0x00010000
+#define fafPutMonoImage 0x00020000
+#define fafPutMonoImageLin 0x00040000
+#define fafPutMonoImageBM 0x00080000
+#define fafBitBlt 0x00100000
+#define fafBitBltSys 0x00200000
+#define fafBitBltLin 0x00400000
+#define fafBitBltBM 0x00800000
+#define fafSrcTransBlt 0x01000000
+#define fafSrcTransBltSys 0x02000000
+#define fafSrcTransBltLin 0x04000000
+#define fafSrcTransBltBM 0x08000000
+
+
+
+/* helper function for enabling/disabling driver routines */
+void fixup_feature_list(AF_DRIVER *af, unsigned long flags);
+
+
+
+/* extension providing libc exports (needed for Nucleus compatibility) */
+#define FAFEXT_LIBC FAF_ID('L','I','B','C')
+
+
+typedef struct FAF_LIBC_DATA
+{
+ long size;
+ void (*abort)();
+ void *(*calloc)(unsigned long num_elements, unsigned long size);
+ void (*exit)(int status);
+ void (*free)(void *ptr);
+ char *(*getenv)(const char *name);
+ void *(*malloc)(unsigned long size);
+ void *(*realloc)(void *ptr, unsigned long size);
+ int (*system)(const char *s);
+ int (*putenv)(const char *val);
+ int (*open)(const char *file, int mode, int permissions);
+ int (*access)(const char *filename, int flags);
+ int (*close)(int fd);
+ int (*lseek)(int fd, int offset, int whence);
+ int (*read)(int fd, void *buffer, unsigned long count);
+ int (*unlink)(const char *file);
+ int (*write)(int fd, const void *buffer, unsigned long count);
+ int (*isatty)(int fd);
+ int (*remove)(const char *file);
+ int (*rename)(const char *oldname, const char *newname);
+ unsigned int (*time)(unsigned int *t);
+ void (*setfileattr)(const char *filename, unsigned attrib);
+ unsigned long (*getcurrentdate)();
+} FAF_LIBC_DATA;
+
+
+
+/* extension providing pmode exports (needed for Nucleus compatibility) */
+#define FAFEXT_PMODE FAF_ID('P','M','O','D')
+
+
+
+/* It has to be said, having this many exported functions is truly insane.
+ * How on earth can SciTech need this much crap just to write a simple
+ * video driver? Unfortunately we have to include it all in order to
+ * support their Nucleus drivers...
+ */
+
+typedef union
+{
+ struct {
+ unsigned long eax, ebx, ecx, edx, esi, edi, cflag;
+ } e;
+ struct {
+ unsigned short ax, ax_hi;
+ unsigned short bx, bx_hi;
+ unsigned short cx, cx_hi;
+ unsigned short dx, dx_hi;
+ unsigned short si, si_hi;
+ unsigned short di, di_hi;
+ unsigned short cflag, cflag_hi;
+ } x;
+ struct {
+ unsigned char al, ah; unsigned short ax_hi;
+ unsigned char bl, bh; unsigned short bx_hi;
+ unsigned char cl, ch; unsigned short cx_hi;
+ unsigned char dl, dh; unsigned short dx_hi;
+ } h;
+} SILLY_SCITECH_REGS;
+
+
+
+typedef struct
+{
+ unsigned short es, cs, ss, ds, fs, gs;
+} SILLY_SCITECH_SREGS;
+
+
+
+typedef struct FAF_PMODE_DATA
+{
+ long size;
+ int (*getModeType)();
+ void *(*getBIOSPointer)();
+ void *(*getA0000Pointer)();
+ void *(*mapPhysicalAddr)(unsigned long base, unsigned long limit);
+ void *(*mallocShared)(long size);
+ int (*mapShared)(void *ptr);
+ void (*freeShared)(void *ptr);
+ void *(*mapToProcess)(void *linear, unsigned long limit);
+ void (*loadDS)();
+ void (*saveDS)();
+ void *(*mapRealPointer)(unsigned int r_seg, unsigned int r_off);
+ void *(*allocRealSeg)(unsigned int size, unsigned int *r_seg, unsigned int *r_off);
+ void (*freeRealSeg)(void *mem);
+ void *(*allocLockedMem)(unsigned int size, unsigned long *physAddr);
+ void (*freeLockedMem)(void *p);
+ void (*callRealMode)(unsigned int seg, unsigned int off, SILLY_SCITECH_REGS *regs, SILLY_SCITECH_SREGS *sregs);
+ int (*int86)(int intno, SILLY_SCITECH_REGS *in, SILLY_SCITECH_REGS *out);
+ int (*int86x)(int intno, SILLY_SCITECH_REGS *in, SILLY_SCITECH_REGS *out, SILLY_SCITECH_SREGS *sregs);
+ void (*DPMI_int86)(int intno, RM_REGS *regs);
+ void (*segread)(SILLY_SCITECH_SREGS *sregs);
+ int (*int386)(int intno, SILLY_SCITECH_REGS *in, SILLY_SCITECH_REGS *out);
+ int (*int386x)(int intno, SILLY_SCITECH_REGS *in, SILLY_SCITECH_REGS *out, SILLY_SCITECH_SREGS *sregs);
+ void (*availableMemory)(unsigned long *physical, unsigned long *total);
+ void *(*getVESABuf)(unsigned int *len, unsigned int *rseg, unsigned int *roff);
+ long (*getOSType)();
+ void (*fatalError)(const char *msg);
+ void (*setBankA)(int bank);
+ void (*setBankAB)(int bank);
+ const char *(*getCurrentPath)();
+ const char *(*getVBEAFPath)();
+ const char *(*getNucleusPath)();
+ const char *(*getNucleusConfigPath)();
+ const char *(*getUniqueID)();
+ const char *(*getMachineName)();
+ int (*VF_available)();
+ void *(*VF_init)(unsigned long baseAddr, int bankSize, int codeLen, void *bankFunc);
+ void (*VF_exit)();
+ int (*kbhit)();
+ int (*getch)();
+ int (*openConsole)();
+ int (*getConsoleStateSize)();
+ void (*saveConsoleState)(void *stateBuf, int console_id);
+ void (*restoreConsoleState)(const void *stateBuf, int console_id);
+ void (*closeConsole)(int console_id);
+ void (*setOSCursorLocation)(int x, int y);
+ void (*setOSScreenWidth)(int width, int height);
+ int (*enableWriteCombine)(unsigned long base, unsigned long length);
+ void (*backslash)(char *filename);
+} FAF_PMODE_DATA;
+
+
+
+/* assorted helper functions */
+void trace_putc(char c);
+void trace_printf(char *msg, ...);
+
+void rm_int(int num, RM_REGS *regs);
+
+int allocate_dos_memory(int size, int *sel);
+void free_dos_memory(int sel);
+
+int allocate_selector(int addr, int size);
+void free_selector(int sel);
+
+int get_vesa_info(int *vram_size, unsigned long *linear_addr, void (*callback)(int vesa_num, int linear, int w, int h, int bpp, int bytes_per_scanline, int redsize, int redpos, int greensize, int greenpos, int bluesize, int bluepos, int rsvdsize, int rsvdpos));
+
+
+
+/* read_vga_register:
+ * Reads the contents of a VGA hardware register.
+ */
+extern inline int read_vga_register(int port, int index)
+{
+ if (port==0x3C0)
+ inportb(0x3DA);
+
+ outportb(port, index);
+ return inportb(port+1);
+}
+
+
+
+/* write_vga_register:
+ * Writes a byte to a VGA hardware register.
+ */
+extern inline void write_vga_register(int port, int index, int v)
+{
+ if (port==0x3C0) {
+ inportb(0x3DA);
+ outportb(port, index);
+ outportb(port, v);
+ }
+ else {
+ outportb(port, index);
+ outportb(port+1, v);
+ }
+}
+
+
+
+/* alter_vga_register:
+ * Alters specific bits of a VGA hardware register.
+ */
+extern inline void alter_vga_register(int port, int index, int mask, int v)
+{
+ int temp;
+ temp = read_vga_register(port, index);
+ temp &= (~mask);
+ temp |= (v & mask);
+ write_vga_register(port, index, temp);
+}
+
+
+
+/* test_vga_register:
+ * Tests whether specific bits of a VGA hardware register can be changed.
+ */
+extern inline int test_vga_register(int port, int index, int mask)
+{
+ int old, nw1, nw2;
+
+ old = read_vga_register(port, index);
+ write_vga_register(port, index, old & (~mask));
+ nw1 = read_vga_register(port, index) & mask;
+ write_vga_register(port, index, old | mask);
+ nw2 = read_vga_register(port, index) & mask;
+ write_vga_register(port, index, old);
+
+ return ((nw1==0) && (nw2==mask));
+}
+
+
+
+/* test_register:
+ * Tests whether specific bits of a hardware register can be changed.
+ */
+extern inline int test_register(int port, int mask)
+{
+ int old, nw1, nw2;
+
+ old = inportb(port);
+ outportb(port, old & (~mask));
+ nw1 = inportb(port) & mask;
+ outportb(port, old | mask);
+ nw2 = inportb(port) & mask;
+ outportb(port, old);
+
+ return ((nw1==0) && (nw2==mask));
+}
+
+
+
+/* PCI routines added by SET */
+#define PCIConfigurationAddress 0xCF8
+#define PCIConfigurationData 0xCFC
+#define PCIEnable 0x80000000
+
+extern int FindPCIDevice(int deviceID, int vendorID, int deviceIndex, int *handle);
+
+extern inline unsigned PCIReadLong(int handle, int index)
+{
+ outportl(PCIConfigurationAddress, PCIEnable | handle | index);
+ return inportl(PCIConfigurationData);
+}
diff --git a/src/mesa/drivers/dos/vbeafint.h b/src/mesa/drivers/dos/vbeafint.h new file mode 100644 index 0000000000..5e636f08d3 --- /dev/null +++ b/src/mesa/drivers/dos/vbeafint.h @@ -0,0 +1,50 @@ +/*
+ * 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 v0.2 for Mesa 4.0
+ *
+ * Copyright (C) 2002 - Borca Daniel
+ * Email : dborca@yahoo.com
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+#ifndef VBEAFINT_H_included
+#define VBEAFINT_H_included
+
+#include "vbeaf.h"
+
+int af_init (char *filename);
+void af_exit (void);
+
+AF_MODE_INFO *af_getmode (int i, int *granularity);
+int af_setup_mode (int mode, int caps);
+int af_enter_mode (int mode, int width, int height);
+int af_setup_buffer (int x, int y);
+int af_flip (void);
+
+void *af_getprim (int primitive);
+
+#endif
diff --git a/src/mesa/drivers/dos/video.c b/src/mesa/drivers/dos/video.c new file mode 100644 index 0000000000..5c2c84a84f --- /dev/null +++ b/src/mesa/drivers/dos/video.c @@ -0,0 +1,625 @@ +/*
+ * 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 v0.3 for Mesa 4.0
+ *
+ * Copyright (C) 2002 - Borca Daniel
+ * Email : dborca@yahoo.com
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+#include <dpmi.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stubinfo.h>
+#include <sys/exceptn.h>
+#include <sys/segments.h>
+#include <sys/farptr.h>
+
+#include "video.h"
+#include "dpmiint.h"
+
+
+
+typedef unsigned char word8;
+typedef unsigned short word16;
+typedef unsigned long word32;
+
+typedef struct vl_mode {
+ int mode;
+ int xres, yres;
+ int scanlen;
+ int bpp;
+} vl_mode;
+
+#define _16_ *(word16 *)&
+#define _32_ *(word32 *)&
+
+static int init;
+
+static vl_mode modes[64];
+
+/* card specific: valid forever */
+static word16 vesa_ver;
+static word32 hw_granularity, hw_linearfb;
+static unsigned int gran_shift, gran_mask;
+/* based upon mode specific data: valid entire session */
+static int video_selector, banked_selector, linear_selector;
+static int video_scanlen, video_bypp;
+/* valid until next buffer */
+static int current_offset, current_delta, current_width;
+
+
+
+/* lookup table for scaling 5 bit colors up to 8 bits */
+static 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 */
+static 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
+};
+
+
+
+/*
+ * virtual clearing
+ */
+void (*vl_clear) (void *buffer, int len, int color);
+
+#define v_clear15 v_clear16
+extern void v_clear16 (void *buffer, int len, int color);
+extern void v_clear32 (void *buffer, int len, int color);
+__asm__("\n\
+ .text \n\
+ .balign 4 \n\
+ .global _v_clear16 \n\
+_v_clear16: \n\
+ movl 12(%esp), %eax \n\
+ pushw %ax \n\
+ pushw %ax \n\
+ popl %eax \n\
+ jmp _v_clear_common \n\
+ .balign 4 \n\
+ .global _v_clear32 \n\
+_v_clear32: \n\
+ movl 12(%esp), %eax \n\
+ .balign 4 \n\
+_v_clear_common: \n\
+ movl 8(%esp), %ecx \n\
+ movl 4(%esp), %edx \n\
+ shrl $2, %ecx \n\
+ 0: \n\
+ .balign 4 \n\
+ movl %eax, (%edx) \n\
+ addl $4, %edx \n\
+ decl %ecx \n\
+ jnz 0b \n\
+ ret");
+extern void v_clear24 (void *buffer, int len, int color);
+__asm__("\n\
+ .text \n\
+ .balign 4 \n\
+ .global _v_clear24 \n\
+_v_clear24: \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");
+
+
+
+/*
+ * virtual rectangle clearing
+ */
+void vl_rect (void *buffer, int x, int y, int width, int height, int color)
+{
+ int offset = y*current_width + x;
+ int delta = current_width - width;
+
+ for (y=0; y<height; y++) {
+ for (x=0; x<width; x++, offset++) {
+ vl_putpixel(buffer, offset, color);
+ }
+ offset += delta;
+ }
+}
+
+
+
+/*
+ * virtual dumping:
+ */
+void *(*vl_flip) (void *buffer, int width, int height);
+
+extern void *b_dump_virtual (void *buffer, int width, int height);
+__asm__("\n\
+ .text \n\
+ .balign 4 \n\
+ .global _b_dump_virtual \n\
+_b_dump_virtual: \n\
+ pushl %ebx \n\
+ pushl %esi \n\
+ pushl %edi \n\
+ pushl %ebp \n\
+ movl _video_selector, %fs \n\
+ movl 4*4+4+0(%esp), %esi \n\
+ movl _hw_granularity, %ebp \n\
+ xorl %edx, %edx \n\
+ movl _current_offset, %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 _current_delta, %ebx \n\
+ movl 5*4+4+4(%esp), %ecx \n\
+ movl 5*4+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\
+ ret");
+extern void *l_dump_virtual (void *buffer, int width, int height);
+__asm__("\n\
+ .text \n\
+ .balign 4 \n\
+ .global _l_dump_virtual \n\
+_l_dump_virtual: \n\
+ pushl %ebx \n\
+ pushl %esi \n\
+ pushl %edi \n\
+ movl _video_selector, %fs \n\
+ movl 3*4+4+0(%esp), %esi \n\
+ movl _current_offset, %edi \n\
+ movl 3*4+4+4(%esp), %ecx \n\
+ movl 3*4+4+8(%esp), %edx \n\
+ movl _current_delta, %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\
+ ret");
+
+
+
+/*
+ * mix RGBA components
+ */
+int (*vl_mixrgba) (const unsigned char rgba[]);
+
+#define vl_mixrgba15 vl_mixrgb15
+#define vl_mixrgba16 vl_mixrgb16
+#define vl_mixrgba24 vl_mixrgb24
+static int vl_mixrgba32 (const unsigned char rgba[])
+{
+ return (rgba[3]<<24)|(rgba[0]<<16)|(rgba[1]<<8)|(rgba[2]);
+}
+
+
+
+/*
+ * mix RGB components
+ */
+int (*vl_mixrgb) (const unsigned char rgb[]);
+
+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]);
+}
+
+
+
+/*
+ * vl_putpixel*
+ */
+void (*vl_putpixel) (void *buffer, int offset, int color);
+
+#define v_putpixel15 v_putpixel16
+extern void v_putpixel16 (void *buffer, int offset, int color);
+__asm__("\n\
+ .text \n\
+ .balign 4 \n\
+ .global _v_putpixel16 \n\
+_v_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");
+extern void v_putpixel24 (void *buffer, int offset, int color);
+__asm__("\n\
+ .text \n\
+ .balign 4 \n\
+ .global _v_putpixel24 \n\
+_v_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");
+extern void v_putpixel32 (void *buffer, int offset, int color);
+__asm__("\n\
+ .text \n\
+ .balign 4 \n\
+ .global _v_putpixel32 \n\
+_v_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");
+
+
+
+/*
+ * get pixel and decompose R, G, B, A
+ */
+void (*vl_getrgba) (void *buffer, int offset, unsigned char rgba[4]);
+
+/*
+ * v_getrgba*
+ */
+static void v_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;
+}
+static void v_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;
+}
+static void v_getrgba24 (void *buffer, int offset, unsigned char rgba[4])
+{
+ int c = *(word32 *)((long)buffer+offset*3);
+ rgba[0] = c >> 16;
+ rgba[1] = c >> 8;
+ rgba[2] = c;
+ rgba[3] = 255;
+}
+static void v_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] = c >> 24;
+}
+
+
+
+/*
+ * sync buffer with video hardware
+ */
+void *vl_sync_buffer (void *buffer, int x, int y, int width, int height)
+{
+ void *newbuf;
+
+ if (width&3) {
+ return NULL;
+ } else {
+ current_offset = video_scanlen * y + video_bypp * x;
+ if ((newbuf=realloc(buffer, width*height*video_bypp))!=NULL) {
+ current_width = width;
+ current_delta = video_scanlen - video_bypp * width;
+ return newbuf;
+ } else {
+ return NULL;
+ }
+ }
+}
+
+
+
+/*
+ * attempts to detect VESA and video modes
+ */
+static word16 vl_vesa_init (void)
+{
+ __dpmi_regs r;
+ unsigned short *p;
+ vl_mode *q;
+ char vesa_info[512], tmp[512];
+ int maxsize = 0;
+
+ _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];
+ hw_granularity = (_16_ tmp[4])<<10;
+ if (tmp[0]&0x80) {
+ *(q+1) = *q++;
+ hw_linearfb = _32_ tmp[0x28];
+ q->mode |= 0x4000;
+ }
+ if (maxsize<(q->scanlen*q->yres)) {
+ maxsize = q->scanlen*q->yres;
+ }
+ q++;
+ }
+ } while (!0);
+
+ if (hw_linearfb) {
+ maxsize = ((maxsize+0xfffUL)&~0xfffUL);
+ if (_create_selector(&linear_selector, hw_linearfb, maxsize)) {
+ return 0;
+ }
+ }
+ if (_create_selector(&banked_selector, 0xa0000, hw_granularity)) {
+ _remove_selector(&linear_selector);
+ return 0;
+ }
+
+ return _16_ vesa_info[4];
+ }
+ }
+
+ return 0;
+}
+
+
+
+/*
+ * setup mode
+ */
+static int vl_setup_mode (vl_mode *p)
+{
+ if (p->mode&0x4000) {
+ video_selector = linear_selector;
+ vl_flip = l_dump_virtual;
+ } else {
+ { int n; for (gran_shift=0, n=hw_granularity; n; gran_shift++, n>>=1) ; }
+ gran_mask = (1<<(--gran_shift)) - 1;
+ if (hw_granularity!=(gran_mask+1)) {
+ return -1;
+ }
+ video_selector = banked_selector;
+ vl_flip = b_dump_virtual;
+ }
+
+#define INITPTR(bpp) \
+ vl_putpixel = v_putpixel##bpp; \
+ vl_getrgba = v_getrgba##bpp; \
+ vl_clear = v_clear##bpp; \
+ vl_mixrgb = vl_mixrgb##bpp; \
+ vl_mixrgba = vl_mixrgba##bpp;
+
+ switch (p->bpp) {
+ 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_bypp = (p->bpp+7)/8;
+ video_scanlen = p->scanlen;
+
+ return 0;
+}
+
+
+
+/*
+ * shutdown the video engine
+ */
+void vl_video_exit (int textmode)
+{
+ if (init) {
+ if (textmode) {
+ __asm__("movw $0x3, %%ax; int $0x10":::"%eax");
+ }
+
+ _remove_selector(&linear_selector);
+ _remove_selector(&banked_selector);
+
+ init = !init;
+ }
+}
+
+
+
+/*
+ * initialize video engine
+ *
+ * success: 0
+ * failure: -1
+ */
+int vl_video_init (int width, int height, int bpp)
+{
+ vl_mode *p, *q;
+ unsigned int min;
+
+ /* check for prior initialization */
+ if (init) {
+ return 0;
+ }
+
+ /* initialize hardware */
+ if (!(vesa_ver=vl_vesa_init())) {
+ return -1;
+ }
+ init = !init;
+
+ /* search for a mode that fits our request */
+ for (min=-1, p=NULL, q=modes; 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;
+ }
+ }
+ }
+
+ if (p) {
+ vl_setup_mode(p);
+ __asm__("movw $0x4f02, %%ax; int $0x10"::"b"(p->mode):"%eax");
+ return 0;
+ } else {
+ /* no suitable mode found, abort */
+ vl_video_exit(0);
+ return -1;
+ }
+}
diff --git a/src/mesa/drivers/dos/video.h b/src/mesa/drivers/dos/video.h new file mode 100644 index 0000000000..ff81ac9d2e --- /dev/null +++ b/src/mesa/drivers/dos/video.h @@ -0,0 +1,52 @@ +/*
+ * 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 v0.3 for Mesa 4.0
+ *
+ * Copyright (C) 2002 - Borca Daniel
+ * Email : dborca@yahoo.com
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+#ifndef VIDEO_H_included
+#define VIDEO_H_included
+
+int vl_video_init (int width, int height, int bpp);
+void vl_video_exit (int textmode);
+
+void *vl_sync_buffer (void *buffer, int x, int y, int width, int height);
+
+extern void (*vl_clear) (void *buffer, int len, int color);
+void vl_rect (void *buffer, int x, int y, int width, int height, int color);
+
+void *(*vl_flip) (void *buffer, int width, int height);
+
+extern int (*vl_mixrgba) (const unsigned char rgba[]);
+extern int (*vl_mixrgb) (const unsigned char rgb[]);
+extern void (*vl_putpixel) (void *buffer, int offset, int color);
+extern void (*vl_getrgba) (void *buffer, int offset, unsigned char rgba[4]);
+
+#endif
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