Added libtarga

CMakeLists.txt

@@ -3,4 +3,4 @@ project(caff_previewer C)
 
 set(CMAKE_C_STANDARD 11)
 
-add_executable(caff_previewer src/main.c src/magic_memory.c src/magic_memory.h)
+add_executable(caff_previewer src/main.c src/magic_memory.c src/magic_memory.h src/libtarga.c src/libtarga.h)

src/libtarga.h

@@ -0,0 +1,133 @@
+#ifndef _libtarga_h_
+#define _libtarga_h_
+
+/**************************************************************************
+ ** Simplified TARGA library for Intro to Graphics Classes
+ **
+ ** This is a simple library for reading and writing image files in
+ ** the TARGA file format (which is a simple format). 
+ ** The routines are intentionally designed to be simple for use in
+ ** into to graphics assignments - a more full-featured targa library
+ ** also exists for other uses.
+ **
+ ** This library was originally written by Alex Mohr who has assigned
+ ** copyright to Michael Gleicher. The code is made available under an
+ ** "MIT" Open Source license.
+ **/
+
+/**
+ ** Copyright (c) 2005 Michael L. Gleicher
+ **
+ ** Permission is hereby granted, free of charge, to any person
+ ** obtaining a copy of this software and associated documentation
+ ** files (the "Software"), to deal in the Software without
+ ** restriction, including without limitation the rights to use, copy,
+ ** modify, merge, publish, distribute, sublicense, and/or sell copies
+ ** of the Software, and to permit persons to whom the Software is
+ ** furnished to do so, subject to the following conditions:
+ ** 
+ ** The above copyright notice and this permission notice shall be
+ ** included in all copies or substantial portions of the Software.
+ **
+ ** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ ** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ ** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ ** NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ ** HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ ** WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ ** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ ** DEALINGS IN THE SOFTWARE.
+ **/
+
+/* uncomment this line if you're compiling on a big-endian machine */
+/* #define WORDS_BIGENDIAN */
+
+
+/* make sure these types reflect your system's type sizes. */
+#define byte    char
+#define int32   int
+#define int16   short
+
+#define ubyte   unsigned byte
+#define uint32  unsigned int32
+#define uint16  unsigned int16
+
+
+
+/*  
+    Truecolor images supported:
+
+    bits            breakdown   components
+    --------------------------------------
+    32              8-8-8-8     RGBA
+    24              8-8-8       RGB
+    16              5-6-5       RGB
+    15              5-5-5-1     RGB (ignore extra bit)
+
+
+    Paletted images supported:
+    
+    index size      palette entry   breakdown   components
+    ------------------------------------------------------
+    8               <any of above>  <same as above> ..
+    16              <any of above>  <same as above> ..
+    24              <any of above>  <same as above> ..
+
+*/
+
+
+
+/*
+
+   Targa files are read in and converted to
+   any of these three for you -- you choose which you want.
+
+   This is the 'format' argument to tga_create/load/write.
+   
+   For create and load, format is what you want the data
+   converted to.
+
+   For write, format is what format the data you're writing
+   is in. (NOT the format you want written)
+
+   Only TGA_TRUECOLOR_32 supports an alpha channel.
+
+*/
+
+#define TGA_TRUECOLOR_32      (4)
+#define TGA_TRUECOLOR_24      (3)
+
+
+/*
+   Image data will start in the low-left corner
+   of the image.
+*/
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/* Error handling routines */
+int             tga_get_last_error();
+const char *    tga_error_string( int error_code );
+
+
+/* Creating/Loading images  --  a return of NULL indicates a fatal error */
+void * tga_create( int width, int height, unsigned int format );
+void * tga_load( const char * file, int * width, int * height, unsigned int format );
+
+
+/* Writing images to file  --  a return of 1 indicates success, 0 indicates error*/
+int tga_write_raw( const char * file, int width, int height, unsigned char * dat, unsigned int format );
+int tga_write_rle( const char * file, int width, int height, unsigned char * dat, unsigned int format );
+
+
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* _libtarga_h_ */

src/main.c

@@ -1,15 +1,24 @@
 #include <stdio.h>
 #include <string.h>
+#include <stdint.h>
 
+#include "libtarga.h"
 #include "magic_memory.h"
 
 int main() {
-    magic_memory_t* magic_run = magic_memory_begin();
+    magic_memory_context_t *magic_run = magic_memory_begin();
+
+    uint8_t *picture = (uint8_t *) magic_malloc(magic_run, 50 * 50 * 3);
+    for (uint16_t i = 0; i < (50*50);i++) {
+        picture[(i*3)] = 0;
+        picture[(i*3)+1] = (i % 100)*25;
+        picture[(i*3)+2] = 255;
+    }
+
+    if (!tga_write_raw("test.tga", 50, 50, picture, TGA_TRUECOLOR_24)) {
+        printf("%s", tga_error_string(tga_get_last_error()));
+    }
 
-    char* str = (char*)magic_malloc(magic_run, 120);
-    strcpy(str,"Test string! Hello world!!");
-    printf("%s",str);
-    //magic_free(magic_run, str);
     magic_cleanup(magic_run); // Free all memory used automagically
 
     return 0;