mirror of
https://github.com/libretro/RetroArch
synced 2025-03-23 19:21:03 +00:00
Move patch code to patch.c
This commit is contained in:
twinaphex
parent
932fc3d353
commit
b3af250e60
125
content.c
125
content.c
@ -41,131 +41,6 @@
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#endif
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#endif
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static bool apply_patch_content(uint8_t **buf,
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ssize_t *size, const char *patch_desc, const char *patch_path,
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patch_func_t func)
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{
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void *patch_data = NULL;
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size_t target_size;
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patch_error_t err = PATCH_UNKNOWN;
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bool success = false;
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uint8_t *patched_content = NULL;
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ssize_t ret_size = *size;
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uint8_t *ret_buf = *buf;
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ssize_t patch_size;
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if (!read_file(patch_desc, &patch_data, &patch_size))
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return false;
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if (patch_size < 0)
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return false;
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if (!path_file_exists(patch_path))
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return false;
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RARCH_LOG("Found %s file in \"%s\", attempting to patch ...\n",
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patch_desc, patch_path);
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target_size = ret_size * 4; /* Just to be sure. */
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patched_content = (uint8_t*)malloc(target_size);
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if (!patched_content)
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{
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RARCH_ERR("Failed to allocate memory for patched content ...\n");
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goto error;
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}
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err = func((const uint8_t*)patch_data, patch_size, ret_buf,
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ret_size, patched_content, &target_size);
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if (err == PATCH_SUCCESS)
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{
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RARCH_LOG("Content patched successfully (%s).\n", patch_desc);
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success = true;
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}
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else
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RARCH_ERR("Failed to patch %s: Error #%u\n", patch_desc,
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(unsigned)err);
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if (success)
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{
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free(ret_buf);
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*buf = patched_content;
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*size = target_size;
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}
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free(patch_data);
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return true;
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error:
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*buf = ret_buf;
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*size = ret_size;
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free(patch_data);
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return false;
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}
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static bool try_bps_patch(uint8_t **buf, ssize_t *size)
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{
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bool allow_bps = !g_extern.ups_pref && !g_extern.ips_pref;
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if (!allow_bps)
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return false;
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if (g_extern.bps_name[0] == '\0')
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return false;
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return apply_patch_content(buf, size, "BPS", g_extern.bps_name,
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bps_apply_patch);
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}
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static bool try_ups_patch(uint8_t **buf, ssize_t *size)
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{
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bool allow_ups = !g_extern.bps_pref && !g_extern.ips_pref;
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if (!allow_ups)
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return false;
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if (g_extern.ups_name[0] == '\0')
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return false;
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return apply_patch_content(buf, size, "UPS", g_extern.ups_name,
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ups_apply_patch);
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}
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static bool try_ips_patch(uint8_t **buf, ssize_t *size)
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{
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bool allow_ips = !g_extern.ups_pref && !g_extern.bps_pref;
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if (!allow_ips)
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return false;
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if (g_extern.ips_name[0] == '\0')
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return false;
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return apply_patch_content(buf, size, "IPS", g_extern.ips_name,
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ips_apply_patch);
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}
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/**
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* patch_content:
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* @buf : buffer of the content file.
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* @size : size of the content file.
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*
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* Apply patch to the content file in-memory.
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*
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**/
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static void patch_content(uint8_t **buf, ssize_t *size)
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{
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if (g_extern.ups_pref + g_extern.bps_pref + g_extern.ips_pref > 1)
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{
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RARCH_WARN("Several patches are explicitly defined, ignoring all ...\n");
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return;
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}
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if (!try_ups_patch(buf, size) && !try_bps_patch(buf, size) && !try_ips_patch(buf, size))
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{
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RARCH_LOG("Did not find a valid content patch.\n");
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}
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}
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/**
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* read_content_file:
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* @path : buffer of the content file.
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132
patch.c
132
patch.c
@ -17,12 +17,16 @@
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/* BPS/UPS/IPS implementation from bSNES (nall::).
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* Modified for RetroArch. */
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#include "patch.h"
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#include "hash.h"
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#include <file/file_path.h>
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#include <boolean.h>
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#include <compat/msvc.h>
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#include <stdint.h>
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#include <string.h>
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#include "patch.h"
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#include "hash.h"
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#include "file_ops.h"
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#include "general.h"
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#include "retroarch_logger.h"
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enum bps_mode
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{
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@ -422,3 +426,127 @@ patch_error_t ips_apply_patch(
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return PATCH_PATCH_INVALID;
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}
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static bool apply_patch_content(uint8_t **buf,
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ssize_t *size, const char *patch_desc, const char *patch_path,
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patch_func_t func)
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{
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void *patch_data = NULL;
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size_t target_size;
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patch_error_t err = PATCH_UNKNOWN;
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bool success = false;
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uint8_t *patched_content = NULL;
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ssize_t ret_size = *size;
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uint8_t *ret_buf = *buf;
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ssize_t patch_size;
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if (!read_file(patch_desc, &patch_data, &patch_size))
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return false;
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if (patch_size < 0)
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return false;
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if (!path_file_exists(patch_path))
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return false;
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RARCH_LOG("Found %s file in \"%s\", attempting to patch ...\n",
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patch_desc, patch_path);
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target_size = ret_size * 4; /* Just to be sure. */
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patched_content = (uint8_t*)malloc(target_size);
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if (!patched_content)
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{
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RARCH_ERR("Failed to allocate memory for patched content ...\n");
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goto error;
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}
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err = func((const uint8_t*)patch_data, patch_size, ret_buf,
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ret_size, patched_content, &target_size);
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if (err == PATCH_SUCCESS)
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{
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RARCH_LOG("Content patched successfully (%s).\n", patch_desc);
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success = true;
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}
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else
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RARCH_ERR("Failed to patch %s: Error #%u\n", patch_desc,
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(unsigned)err);
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if (success)
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{
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free(ret_buf);
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*buf = patched_content;
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*size = target_size;
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}
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free(patch_data);
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return true;
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error:
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*buf = ret_buf;
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*size = ret_size;
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free(patch_data);
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return false;
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}
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static bool try_bps_patch(uint8_t **buf, ssize_t *size)
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{
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bool allow_bps = !g_extern.ups_pref && !g_extern.ips_pref;
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if (!allow_bps)
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return false;
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if (g_extern.bps_name[0] == '\0')
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return false;
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return apply_patch_content(buf, size, "BPS", g_extern.bps_name,
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bps_apply_patch);
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}
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static bool try_ups_patch(uint8_t **buf, ssize_t *size)
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{
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bool allow_ups = !g_extern.bps_pref && !g_extern.ips_pref;
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if (!allow_ups)
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return false;
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if (g_extern.ups_name[0] == '\0')
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return false;
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return apply_patch_content(buf, size, "UPS", g_extern.ups_name,
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ups_apply_patch);
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}
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static bool try_ips_patch(uint8_t **buf, ssize_t *size)
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{
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bool allow_ips = !g_extern.ups_pref && !g_extern.bps_pref;
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if (!allow_ips)
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return false;
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if (g_extern.ips_name[0] == '\0')
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return false;
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return apply_patch_content(buf, size, "IPS", g_extern.ips_name,
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ips_apply_patch);
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}
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/**
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* patch_content:
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* @buf : buffer of the content file.
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* @size : size of the content file.
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*
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* Apply patch to the content file in-memory.
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*
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**/
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void patch_content(uint8_t **buf, ssize_t *size)
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{
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if (g_extern.ups_pref + g_extern.bps_pref + g_extern.ips_pref > 1)
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{
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RARCH_WARN("Several patches are explicitly defined, ignoring all ...\n");
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return;
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}
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if (!try_ups_patch(buf, size) && !try_bps_patch(buf, size) && !try_ips_patch(buf, size))
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{
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RARCH_WARN("Did not find a valid content patch.\n");
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}
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}
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10
patch.h
10
patch.h
@ -58,4 +58,14 @@ patch_error_t ips_apply_patch(
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const uint8_t *source_data, size_t source_length,
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uint8_t *target_data, size_t *target_length);
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/**
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* patch_content:
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* @buf : buffer of the content file.
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* @size : size of the content file.
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*
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* Apply patch to the content file in-memory.
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*
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**/
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void patch_content(uint8_t **buf, ssize_t *size);
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#endif
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