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Update to use the latest libopk API, and simplify loadPNG

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This commit is contained in:
Paul Cercueil 2012-11-05 18:48:48 -03:00
parent 0b922e97f3
commit 8d96f3c261
2 changed files with 24 additions and 30 deletions
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48
src/imageio.cpp
View File

@ -15,27 +15,12 @@
#ifdef HAVE_LIBOPK
#include <opk.h>
struct OpkParams {
std::string *sqfs_file, *icon_file;
unsigned int offset;
char *buf;
};
static void __readFromOpk(png_structp png_ptr, png_bytep ptr, png_size_t length)
{
struct OpkParams *params = (struct OpkParams *) png_get_io_ptr(png_ptr);
char **buf = (char **) png_get_io_ptr(png_ptr);
if (!params->buf) {
params->buf = opk_extract_file(params->sqfs_file->c_str(),
params->icon_file->c_str());
if (!params->buf) {
png_error(png_ptr, "Unable to open OPK package\n");
return;
}
}
memcpy(ptr, params->buf + params->offset, length);
params->offset += length;
memcpy(ptr, *buf, length);
*buf += length;
}
#endif
@ -47,8 +32,9 @@ SDL_Surface *loadPNG(const std::string &path) {
png_structp png = NULL;
png_infop info = NULL;
#ifdef HAVE_LIBOPK
struct OpkParams *params = NULL;
std::string::size_type pos;
struct ParserData *pdata = NULL;
char *buffer = NULL, *param;
#endif
// Create and initialize the top-level libpng struct.
@ -72,13 +58,16 @@ SDL_Surface *loadPNG(const std::string &path) {
if (pos != path.npos) {
DEBUG("Registering specific callback for icon %s\n", path.c_str());
params = (struct OpkParams *) malloc(sizeof(*params));
params->sqfs_file = new std::string(path.substr(0, pos));
params->icon_file = new std::string(path.substr(pos + 1));
params->offset = 0;
params->buf = NULL;
pdata = opk_open(path.substr(0, pos).c_str());
if (!pdata) {
ERROR("Unable to open OPK\n");
goto cleanup;
}
png_set_read_fn(png, params, __readFromOpk);
buffer = opk_extract_file(pdata, path.substr(pos + 1).c_str());
param = buffer;
png_set_read_fn(png, &param, __readFromOpk);
} else {
#else
if (1) {
@ -165,11 +154,10 @@ cleanup:
png_destroy_read_struct(&png, &info, NULL);
if (fp) fclose(fp);
#ifdef HAVE_LIBOPK
if (params) {
if (params->buf)
free(params->buf);
free(params);
}
if (buffer)
free(buffer);
if (pdata)
opk_close(pdata);
#endif
return surface;

6
src/linkapp.cpp
View File

@ -90,6 +90,12 @@ LinkApp::LinkApp(GMenu2X *gmenu2x_, Touchscreen &ts, InputManager &inputMgr_,
return;
}
if (!opk_open_metadata(pdata)) {
ERROR("OPK does not contain any meta-data\n");
opk_close(pdata);
return;
}
opkFile = file;
pos = file.rfind('/');
opkMount = file.substr(pos+1);