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mtl support

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Nishi 2026-01-18 23:42:29 +09:00
commit 76bbf980eb
Signed by: nishi
GPG key ID: 27EF69B208EB9343
9 changed files with 194 additions and 54 deletions
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62
engine/src/gl_common.c Normal file
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#include <GearSrc/GL.h>
#include <GearSrc/String.h>
#include <GearSrc/File.h>
#include <stb_image.h>
int GSGLTextureLoadFile(GSGL gl, GLuint* texture, int* width, int* height, const char* filename) {
GSFile f = GSFileOpen(gl->engine, filename);
unsigned char* data;
unsigned char* rgba;
unsigned long sz;
int ch;
int st = 1;
int w, h;
if(f == NULL) return 0;
sz = GSFileSize(f);
data = malloc(sz);
GSFileRead(f, data, sz);
GSFileClose(f);
if((rgba = stbi_load_from_memory(data, sz, &w, &h, &ch, 4)) == NULL) {
st = 0;
} else {
GSGLTexturePrepare(gl, texture, rgba, w, h);
free(rgba);
}
if(width != NULL) *width = w;
if(height != NULL) *height = h;
free(data);
return st;
}
int GSGLTextureTry(GSGL gl, GLuint* texture, int* width, int* height, const char* prefix) {
char* png = GSStringConcat(prefix, ".png");
char* bmp = GSStringConcat(prefix, ".bmp");
char* jpg = GSStringConcat(prefix, ".jpg");
char* jpeg = GSStringConcat(prefix, ".jpeg");
int st = 1;
if(GSGLTextureLoadFile(gl, texture, width, height, prefix)) {
} else if(GSGLTextureLoadFile(gl, texture, width, height, png)) {
} else if(GSGLTextureLoadFile(gl, texture, width, height, bmp)) {
} else if(GSGLTextureLoadFile(gl, texture, width, height, jpg)) {
} else if(GSGLTextureLoadFile(gl, texture, width, height, jpeg)) {
} else {
st = 0;
}
free(jpeg);
free(jpg);
free(bmp);
free(png);
return st;
}