X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=platform%2Flibretro.c;h=a6bc50f09b5910862cc282b36089f91d3501fece;hb=8c8b72847259871bc50cd796383d9eeb83970bb1;hp=40dc394e96b42e7adca43b1bcda9b253b09ccf28;hpb=2446536be520914616403876d7e49621ac6f4b95;p=picodrive.git

diff --git a/platform/libretro.c b/platform/libretro.c
index 40dc394..a6bc50f 100644
--- a/platform/libretro.c
+++ b/platform/libretro.c
@@ -11,6 +11,7 @@
 #include <stdarg.h>
 #include <string.h>
 #include <sys/mman.h>
+#include <errno.h>
 #ifdef __MACH__
 #include <libkern/OSCacheControl.h>
 #endif
@@ -20,6 +21,10 @@
 #include "common/version.h"
 #include "libretro.h"
 
+#ifndef MAP_ANONYMOUS
+#define MAP_ANONYMOUS MAP_ANON
+#endif
+
 static retro_video_refresh_t video_cb;
 static retro_input_poll_t input_poll_cb;
 static retro_input_state_t input_state_cb;
@@ -71,8 +76,10 @@ void *plat_mmap(unsigned long addr, size_t size, int need_exec, int is_fixed)
 
 	req = (void *)addr;
 	ret = mmap(req, size, PROT_READ | PROT_WRITE, flags, -1, 0);
-	if (ret == MAP_FAILED)
+	if (ret == MAP_FAILED) {
+		lprintf("mmap(%08lx, %zd) failed: %d\n", addr, size, errno);
 		return NULL;
+	}
 
 	if (addr != 0 && ret != (void *)addr) {
 		lprintf("warning: wanted to map @%08lx, got %p\n",
@@ -89,11 +96,35 @@ void *plat_mmap(unsigned long addr, size_t size, int need_exec, int is_fixed)
 
 void *plat_mremap(void *ptr, size_t oldsize, size_t newsize)
 {
+#ifdef __linux__
 	void *ret = mremap(ptr, oldsize, newsize, 0);
 	if (ret == MAP_FAILED)
 		return NULL;
 
 	return ret;
+#else
+	void *tmp, *ret;
+	size_t preserve_size;
+	
+	preserve_size = oldsize;
+	if (preserve_size > newsize)
+		preserve_size = newsize;
+	tmp = malloc(preserve_size);
+	if (tmp == NULL)
+		return NULL;
+	memcpy(tmp, ptr, preserve_size);
+
+	munmap(ptr, oldsize);
+	ret = mmap(ptr, newsize, PROT_READ | PROT_WRITE,
+		   MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	if (ret == MAP_FAILED) {
+		free(tmp);
+		return NULL;
+	}
+	memcpy(ret, tmp, preserve_size);
+	free(tmp);
+	return ret;
+#endif
 }
 
 void plat_munmap(void *ptr, size_t size)
@@ -102,6 +133,15 @@ void plat_munmap(void *ptr, size_t size)
 		munmap(ptr, size);
 }
 
+int plat_mem_set_exec(void *ptr, size_t size)
+{
+	int ret = mprotect(ptr, size, PROT_READ | PROT_WRITE | PROT_EXEC);
+	if (ret != 0)
+		lprintf("mprotect(%p, %zd) failed: %d\n", ptr, size, errno);
+
+	return ret;
+}
+
 void emu_video_mode_change(int start_line, int line_count, int is_32cols)
 {
 	memset(vout_buf, 0, 320 * 240 * 2);
@@ -175,7 +215,7 @@ void retro_get_system_info(struct retro_system_info *info)
 	memset(info, 0, sizeof(*info));
 	info->library_name = "PicoDrive";
 	info->library_version = VERSION;
-	info->valid_extensions = "bin|gen|smd|32x|cue|iso|sms";
+	info->valid_extensions = "bin|gen|smd|md|32x|cue|iso|sms";
 	info->need_fullpath = true;
 }
 
@@ -559,9 +599,12 @@ void retro_init(void)
 	environ_cb(RETRO_ENVIRONMENT_SET_DISK_CONTROL_INTERFACE, &disk_control);
 
 	PicoOpt = POPT_EN_STEREO|POPT_EN_FM|POPT_EN_PSG|POPT_EN_Z80
-		| POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_SVP_DRC
-		| POPT_ACC_SPRITES|POPT_EN_32X|POPT_EN_PWM
-		| POPT_DIS_32C_BORDER;
+		| POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_MCD_GFX
+		| POPT_EN_32X|POPT_EN_PWM
+		| POPT_ACC_SPRITES|POPT_DIS_32C_BORDER;
+#ifdef __arm__
+	PicoOpt |= POPT_EN_SVP_DRC;
+#endif
 	PsndRate = 44100;
 	PicoAutoRgnOrder = 0x184; // US, EU, JP
 	PicoCDBuffers = 0;