From af6e9c49619b918da965e82e5ecb525d98aee862 Mon Sep 17 00:00:00 2001
From: notaz <notasas@gmail.com>
Date: Sat, 10 Mar 2007 23:50:03 +0000
Subject: [PATCH] support for zipped ISOs

git-svn-id: file:///home/notaz/opt/svn/PicoDrive/platform@65 be3aeb3a-fb24-0410-a615-afba39da0efa
---
 gp2x/Makefile  |  2 +-
 gp2x/emu.c     | 48 ++++++++++++++++++------------------------------
 gp2x/menu.c    |  2 +-
 linux/Makefile |  2 +-
 linux/gp2x.c   |  1 +
 5 files changed, 22 insertions(+), 33 deletions(-)

diff --git a/gp2x/Makefile b/gp2x/Makefile
index a3c6961..081715a 100644
--- a/gp2x/Makefile
+++ b/gp2x/Makefile
@@ -68,7 +68,7 @@ OBJS += ../../Pico/sound/sound.o ../../Pico/sound/sn76496.o ../../Pico/sound/ym2
 OBJS += ../../zlib/gzio.o ../../zlib/inffast.o ../../zlib/inflate.o ../../zlib/inftrees.o ../../zlib/trees.o \
 	../../zlib/deflate.o ../../zlib/crc32.o ../../zlib/adler32.o ../../zlib/zutil.o ../../zlib/compress.o
 # unzip
-OBJS += ../../unzip/unzip.o
+OBJS += ../../unzip/unzip.o ../../unzip/unzip_stream.o
 # mp3
 OBJS += mp3.o
 # CPU cores
diff --git a/gp2x/emu.c b/gp2x/emu.c
index c8c4f8a..3d6cd3a 100644
--- a/gp2x/emu.c
+++ b/gp2x/emu.c
@@ -169,31 +169,31 @@ int find_bios(int region, char **bios_file)
 
 /* checks if romFileName points to valid MegaCD image
  * if so, checks for suitable BIOS */
-static int cd_check(char *ext, char **bios_file)
+static int cd_check(char **bios_file)
 {
 	unsigned char buf[32];
-	FILE *cd_f;
+	pm_file *cd_f;
 	int type = 0, region = 4; // 1: Japan, 4: US, 8: Europe
 
-	cd_f = fopen(romFileName, "rb");
+	cd_f = pm_open(romFileName);
 	if (!cd_f) return 0; // let the upper level handle this
 
-	if (fread(buf, 1, 32, cd_f) != 32) {
-		fclose(cd_f);
+	if (pm_read(buf, 32, cd_f) != 32) {
+		pm_close(cd_f);
 		return 0;
 	}
 
 	if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x00, 14)) type = 1;       // Sega CD (ISO)
 	if (!strncasecmp("SEGADISCSYSTEM", (char *)buf+0x10, 14)) type = 2;       // Sega CD (BIN)
 	if (type == 0) {
-		fclose(cd_f);
+		pm_close(cd_f);
 		return 0;
 	}
 
 	/* it seems we have a CD image here. Try to detect region and load a suitable BIOS now.. */
-	fseek(cd_f, (type == 1) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);
-	fread(buf, 1, 1, cd_f);
-	fclose(cd_f);
+	pm_seek(cd_f, (type == 1) ? 0x100+0x10B : 0x110+0x10B, SEEK_SET);
+	pm_read(buf, 1, cd_f);
+	pm_close(cd_f);
 
 	if (buf[0] == 0x64) region = 8; // EU
 	if (buf[0] == 0xa1) region = 1; // JAP
@@ -217,7 +217,7 @@ int emu_ReloadRom(void)
 	unsigned int rom_size = 0;
 	char *used_rom_name = romFileName;
 	char ext[5];
-	FILE *rom;
+	pm_file *rom;
 	int ret, cd_state;
 
 	printf("emu_ReloadRom(%s)\n", romFileName);
@@ -284,7 +284,7 @@ int emu_ReloadRom(void)
 	}
 
 	// check for MegaCD image
-	cd_state = cd_check(ext, &used_rom_name);
+	cd_state = cd_check(&used_rom_name);
 	if (cd_state > 0) {
 		PicoMCD |= 1;
 		get_ext(used_rom_name, ext);
@@ -296,7 +296,7 @@ int emu_ReloadRom(void)
 		PicoMCD &= ~1;
 	}
 
-	rom = fopen(used_rom_name, "rb");
+	rom = pm_open(used_rom_name);
 	if(!rom) {
 		sprintf(menuErrorMsg, "Failed to open rom.");
 		return 0;
@@ -308,25 +308,13 @@ int emu_ReloadRom(void)
 		rom_size = 0;
 	}
 
-	// zipfile support
-	if(!strcasecmp(ext, ".zip")) {
-		fclose(rom);
-		ret = CartLoadZip(used_rom_name, &rom_data, &rom_size);
-		if(ret) {
-			if (ret == 4) strcpy(menuErrorMsg, "No ROMs found in zip.");
-			else sprintf(menuErrorMsg, "Unzip failed with code %i", ret);
-			printf("%s\n", menuErrorMsg);
-			return 0;
-		}
-	} else {
-		if( (ret = PicoCartLoad(rom, &rom_data, &rom_size)) ) {
-			sprintf(menuErrorMsg, "PicoCartLoad() failed.");
-			printf("%s\n", menuErrorMsg);
-			fclose(rom);
-			return 0;
-		}
-		fclose(rom);
+	if( (ret = PicoCartLoad(rom, &rom_data, &rom_size)) ) {
+		sprintf(menuErrorMsg, "PicoCartLoad() failed.");
+		printf("%s\n", menuErrorMsg);
+		pm_close(rom);
+		return 0;
 	}
+	pm_close(rom);
 
 	// detect wrong files (Pico crashes on very small files), also see if ROM EP is good
 	if(rom_size <= 0x200 || strncmp((char *)rom_data, "Pico", 4) == 0 ||
diff --git a/gp2x/menu.c b/gp2x/menu.c
index 032616a..40eee48 100644
--- a/gp2x/menu.c
+++ b/gp2x/menu.c
@@ -407,7 +407,7 @@ static void draw_patchlist(int sel)
 		if (pos < 0)  continue;
 		if (pos > 23) break;
 		gp2x_smalltext8_lim(14,     pos*10, PicoPatches[i].active ? "ON " : "OFF", 3);
-		gp2x_smalltext8_lim(14+6*4, pos*10, PicoPatches[i].name, 53-5);
+		gp2x_smalltext8_lim(14+6*4, pos*10, PicoPatches[i].name, 53-6);
 	}
 	pos = start + i;
 	if (pos < 24) gp2x_smalltext8_lim(14, pos*10, "done", 4);
diff --git a/linux/Makefile b/linux/Makefile
index fc5ff06..cd18159 100644
--- a/linux/Makefile
+++ b/linux/Makefile
@@ -39,7 +39,7 @@ OBJS += ../../Pico/sound/sound.o ../../Pico/sound/sn76496.o ../../Pico/sound/ym2
 OBJS += ../../zlib/gzio.o ../../zlib/inffast.o ../../zlib/inflate.o ../../zlib/inftrees.o ../../zlib/trees.o \
 	../../zlib/deflate.o ../../zlib/crc32.o ../../zlib/adler32.o ../../zlib/zutil.o ../../zlib/compress.o
 # unzip
-OBJS += ../../unzip/unzip.o
+OBJS += ../../unzip/unzip.o ../../unzip/unzip_stream.o
 # mp3
 OBJS += ../gp2x/mp3.o
 # CPU cores
diff --git a/linux/gp2x.c b/linux/gp2x.c
index e4e3421..cc4db98 100644
--- a/linux/gp2x.c
+++ b/linux/gp2x.c
@@ -164,6 +164,7 @@ void gp2x_init(void)
 	printf("entering init()\n"); fflush(stdout);
 
 	gp2x_screen = malloc(320*240*2 + 320*2);
+	memset(gp2x_screen, 0, 320*240*2 + 320*2);
 
 	// snd
   	mixerdev = open("/dev/mixer", O_RDWR);
-- 
2.39.5