X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=platform%2Flibretro.c;h=15a83bad0640d6b0fb61927e017afa0eb4372130;hb=da77daa962a65116b81149fdc9c2374d22d72dd0;hp=63551cdc48e051eb3a65ff79dd88f233ba39f619;hpb=53b2e51c0bb65344685b336a73216b059fb6d13c;p=picodrive.git

diff --git a/platform/libretro.c b/platform/libretro.c
index 63551cd..15a83ba 100644
--- a/platform/libretro.c
+++ b/platform/libretro.c
@@ -21,6 +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;
@@ -36,10 +40,6 @@ static int vout_width, vout_height;
 
 static short __attribute__((aligned(4))) sndBuffer[2*44100/50];
 
-// FIXME: these 2 shouldn't be here
-static unsigned char PicoDraw2FB_[(8+320) * (8+240+8)];
-unsigned char *PicoDraw2FB = PicoDraw2FB_;
-
 static void snd_write(int len);
 
 #ifdef _WIN32
@@ -92,11 +92,35 @@ 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)
@@ -123,7 +147,6 @@ void emu_video_mode_change(int start_line, int line_count, int is_32cols)
 
 void emu_32x_startup(void)
 {
-	PicoDrawSetOutFormat(PDF_RGB555, 1);
 }
 
 #ifndef ANDROID
@@ -581,15 +604,12 @@ void retro_init(void)
 	PicoAutoRgnOrder = 0x184; // US, EU, JP
 	PicoCDBuffers = 0;
 
-	p32x_msh2_multiplier = MSH2_MULTI_DEFAULT;
-	p32x_ssh2_multiplier = SSH2_MULTI_DEFAULT;
-
 	vout_width = 320;
 	vout_height = 240;
 	vout_buf = malloc(VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2);
 
 	PicoInit();
-	PicoDrawSetOutFormat(PDF_RGB555, 1);
+	PicoDrawSetOutFormat(PDF_RGB555, 0);
 	PicoDrawSetOutBuf(vout_buf, vout_width * 2);
 
 	//PicoMessage = plat_status_msg_busy_next;