Verzeichnisstruktur ge?ndert

1 files changed, 71 insertions, 0 deletions

diff --git a/texture.c b/texture.c
new file mode 100644
index 0000000..708a53a
--- /dev/null
+++ b/texture.c
@@ -0,0 +1,71 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <GL/gl.h>
+#include <zoom/texture.h>
+
+
+#pragma pack(push,2)
+typedef struct _TEXHEADER {
+	unsigned char t;
+	unsigned char x;
+	unsigned long w;
+	unsigned long h;
+} TEXHEADER;
+#pragma pack(pop)
+
+
+int nTex;
+TEXLIST *texlist;
+
+GLuint LoadTexture(char *filename) {
+	GLuint tex;
+	FILE *file;
+	TEXHEADER txh;
+	unsigned char *data;
+	int i;
+	char name[100];
+	
+	for(i = 0; i < nTex; i++) {
+		if(strcasecmp(filename, texlist[i].name) == 0) return texlist[i].id;
+	}
+	
+	strcpy(name, "tex/");
+	strcat(name, filename);
+	file = fopen(name, "rb");
+	if(!file) return 0;
+	
+	fread(&txh, sizeof(txh), 1, file);
+	if(txh.t != 'T' || txh.x != 'X') {
+		fclose(file);
+		return 0;
+	}
+	
+	data = malloc(txh.w*txh.h*4);
+	if(!data) {
+		fclose(file);
+		return 0;
+	}
+	fread(data, txh.w*txh.h*4, 1, file);
+	
+	glGenTextures(1, &tex);
+	glBindTexture(GL_TEXTURE_2D, tex);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+	glTexImage2D(GL_TEXTURE_2D, 0, 4, txh.w, txh.h, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
+	
+	free(data);
+	fclose(file);
+	
+	nTex++;
+	
+	if(nTex == 1) texlist = malloc(sizeof(TEXLIST));
+	else texlist = realloc(texlist, sizeof(TEXLIST)*nTex);
+	
+	strcpy(texlist[nTex-1].name, filename);
+	texlist[nTex-1].id = tex;
+	
+	return tex;
+}