Add id parameter to GRRLIB_LoadTextureTPL

GRRLIB/GRRLIB/GRRLIB_texEdit.c

@@ -25,10 +25,14 @@ THE SOFTWARE.
 #include <stdio.h>
 #include <jpeglib.h>
 #include <string.h>
-#include <ogc/tpl.h>
 
 #include <grrlib.h>
 
+#define TPL_HDR_VERSION_FIELD       0
+#define TPL_HDR_NTEXTURE_FIELD      4
+#define TPL_HDR_HDRSIZE_FIELD       8
+#define TPL_HDR_DESCR_FIELD         12
+
 // texture header
 typedef struct _tplimgheader TPLImgHeader;
 
@@ -188,34 +192,40 @@ GRRLIB_texImg*  GRRLIB_CreateEmptyTexture (const u32 width, const u32 height)
  * @param size Size of the TPL buffer to set.
  * @return A GRRLIB_texImg structure filled with image information.
  */
-GRRLIB_texImg*  GRRLIB_LoadTextureTPL (u8 *my_tpl, const int size) {
-    const s32 id = 0; // Only id zero is valid for now
-
+GRRLIB_texImg*  GRRLIB_LoadTextureTPL (const u8 *my_tpl, const int size, u32 id) {
     if(my_tpl == NULL || size <= 0) {
         return NULL;
     }
 
-    GRRLIB_texImg *my_texture = calloc(1, sizeof(GRRLIB_texImg));
+    const u32 ntextures = *(u32*)(my_tpl + TPL_HDR_NTEXTURE_FIELD);
+    if(id > ntextures) {
+        return NULL;
+    }
 
+    const TPLDescHeader *deschead = (TPLDescHeader*)(my_tpl + TPL_HDR_DESCR_FIELD);
+
+    for(u32 c = 0; c <= id; ++c) {
+        u32 pos = (u32)deschead[c].imghead;
+        const TPLImgHeader *imghead = (TPLImgHeader*)(my_tpl + pos);
+
+        if(c == id) {
+            GRRLIB_texImg *my_texture = calloc(1, sizeof(GRRLIB_texImg));
             if (my_texture == NULL) {
                 return NULL;
             }
-
-    TPLFile tdf;
-    if (TPL_OpenTPLFromMemory(&tdf, my_tpl, size) > 0) {
-        const TPLDescHeader *deschead = (TPLDescHeader*)tdf.texdesc;
-        my_texture->data = deschead[id].imghead->data;
-        my_texture->w = deschead[id].imghead->width;
-        my_texture->h = deschead[id].imghead->height;
+            pos = (u32)imghead->data;
+            my_texture->data = (char*)(my_tpl + pos);
+            my_texture->w = imghead->width;
+            my_texture->h = imghead->height;
             my_texture->freedata = true;
             GRRLIB_SetHandle( my_texture, 0, 0 );
             GRRLIB_FlushTex( my_texture );
-    }
-    else {
-        free(my_texture);
-        return NULL;
-    }
+
             return my_texture;
+        }
+    }
+
+    return NULL;
 }
 
 /**

GRRLIB/GRRLIB/grrlib/GRRLIB__lib.h

@@ -142,7 +142,7 @@ GRRLIB_texImg*  GRRLIB_LoadTexturePNG (const u8 *my_png);
 GRRLIB_texImg*  GRRLIB_LoadTextureJPG (const u8 *my_jpg);
 GRRLIB_texImg*  GRRLIB_LoadTextureJPGEx (const u8 *my_jpg, const u32 my_size);
 GRRLIB_texImg*  GRRLIB_LoadTextureBMP (const u8 *my_bmp);
-GRRLIB_texImg*  GRRLIB_LoadTextureTPL (u8 *my_tpl, const int size);
+GRRLIB_texImg*  GRRLIB_LoadTextureTPL (const u8 *my_tpl, const int size, u32 id);
 
 //------------------------------------------------------------------------------
 // GRRLIB_gecko.c - USB_Gecko output facilities

GRRLIB/GRRLIB/grrlib/GRRLIB_texSetup.h

@@ -61,7 +61,7 @@ void  GRRLIB_FreeTexture (GRRLIB_texImg *tex) {
  */
 INLINE
 void  GRRLIB_ClearTex(GRRLIB_texImg* tex) {
-    if(tex == NULL) {
+    if(tex == NULL || tex->freedata == false) {
         return;
     }
     memset(tex->data, 0, GX_GetTexBufferSize(tex->w, tex->h, tex->format, 0, 0));

examples/basic_drawing/source/main.c

@@ -94,7 +94,8 @@ int main() {
     GRRLIB_texImg *tex_BMfont5 = GRRLIB_LoadTexture(BMfont5_png);
     GRRLIB_InitTileSet(tex_BMfont5, 8, 16, 0);
 
-    GRRLIB_texImg *tex_test_tpl = GRRLIB_LoadTextureTPL(textures_tpl, textures_tpl_size);
+    GRRLIB_texImg *tex_test_tpl1 = GRRLIB_LoadTextureTPL(textures_tpl, textures_tpl_size, ballsprites);
+    GRRLIB_texImg *tex_test_tpl2 = GRRLIB_LoadTextureTPL(textures_tpl, textures_tpl_size, pirate);
 
     while(1) {
         WPAD_SetVRes(0, 640, 480);
@@ -114,7 +115,8 @@ int main() {
                 GRRLIB_DrawImg(10, 50, tex_test_jpg, 0, 1, 1, GRRLIB_WHITE);  // Draw a jpeg
                 GRRLIB_DrawImg(350, 50, tex_test_bmp, 0, 4, 4, GRRLIB_WHITE); // Draw a bitmap
 
-                GRRLIB_DrawImg(400, 200, tex_test_tpl, 0, 2, 2, GRRLIB_WHITE); // Draw a TPL
+                GRRLIB_DrawImg(400, 200, tex_test_tpl1, 0, 2, 2, GRRLIB_WHITE); // Draw a TPL
+                GRRLIB_DrawImg(400, 300, tex_test_tpl2, 0, 1, 1, GRRLIB_WHITE); // Draw a TPL
 
                 // Draw a sprite
                 GRRLIB_DrawTile(600, 400, tex_sprite_png, 0, 2, 2, GRRLIB_WHITE, 12*4); // Rupee

examples/basic_drawing/textures/textures.scf

@@ -1 +1,2 @@
 <filepath="ballsprites.png" id="ballsprites" colfmt=6 />
+<filepath="pirate.png" id="pirate" colfmt=6 />