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Diffstat (limited to 'src/mesa/drivers/dos/dpmi.c')
-rw-r--r--src/mesa/drivers/dos/dpmi.c296
1 files changed, 148 insertions, 148 deletions
diff --git a/src/mesa/drivers/dos/dpmi.c b/src/mesa/drivers/dos/dpmi.c
index 17c005a9e5..f9943ea60b 100644
--- a/src/mesa/drivers/dos/dpmi.c
+++ b/src/mesa/drivers/dos/dpmi.c
@@ -1,148 +1,148 @@
-/*
- * 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 v1.3 for Mesa
- *
- * Copyright (C) 2002 - Borca Daniel
- * Email : dborca@yahoo.com
- * Web : http://www.geocities.com/dborca
- */
-
-
-#include <dpmi.h>
-
-#include "internal.h"
-
-
-
-#ifndef MAX
-#define MAX(x, y) (((x)<(y))?(y):(x))
-#endif
-
-
-
-/* _create_linear_mapping:
- * Maps a physical address range into linear memory.
- */
-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.
- */
-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;
- }
-}
-
-
-
-/* Desc: retrieve CPU MMX capability
- *
- * In : -
- * Out : FALSE if CPU cannot do MMX
- *
- * Note: -
- */
-int _can_mmx (void)
-{
-#ifdef USE_MMX_ASM
- extern int _mesa_identify_x86_cpu_features (void);
- return (_mesa_identify_x86_cpu_features() & 0x00800000);
-#else
- return 0;
-#endif
-}
+/*
+ * 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 v1.4 for Mesa
+ *
+ * Copyright (C) 2002 - Borca Daniel
+ * Email : dborca@yahoo.com
+ * Web : http://www.geocities.com/dborca
+ */
+
+
+#include <dpmi.h>
+
+#include "internal.h"
+
+
+
+#ifndef MAX
+#define MAX(x, y) (((x)<(y))?(y):(x))
+#endif
+
+
+
+/* _create_linear_mapping:
+ * Maps a physical address range into linear memory.
+ */
+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.
+ */
+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;
+ }
+}
+
+
+
+/* Desc: retrieve CPU MMX capability
+ *
+ * In : -
+ * Out : FALSE if CPU cannot do MMX
+ *
+ * Note: -
+ */
+int _can_mmx (void)
+{
+#ifdef USE_MMX_ASM
+ extern int _mesa_x86_cpu_features;
+ return (_mesa_x86_cpu_features & 0x00800000);
+#else
+ return 0;
+#endif
+}