Add OGKBitmap.

src/Makefile

@@ -1,7 +1,9 @@
+ALLEGRO_MODULES = allegro-5.0 allegro_main-5.0 allegro_image-5.0
+
 all:
 	@mkdir -p build
 	@objfw-compile --lib 0.0 -o objgamekit --builddir build *.m \
-		--arc `pkg-config --cflags --libs allegro-5.0 allegro_main-5.0`
+		--arc `pkg-config --cflags --libs ${ALLEGRO_MODULES}`
 
 clean:
 	@rm -fr build libobjgamekit.* *~

src/OGKBitmap.h

@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 2012 Jonathan Schleifer <js@webkeks.org>
+ *
+ * This software is provided 'as-is', without any express or implied warranty.
+ * In no event will the authors be held liable for any damages arising from the
+ * use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ *   1.) The origin of this software must not be misrepresented; you must not
+ *       claim that you wrote the original software. If you use this software
+ *       in a product, an acknowledgment in the product documentation would be
+ *       appreciated but is not required.
+ *   2.) Altered source versions must be plainly marked as such, and must not
+ *       be misrepresented as being the original software.
+ *   3.) This notice may not be removed or altered from any source distribution.
+ */
+
+#include <allegro5/allegro.h>
+
+#import <ObjFW/ObjFW.h>
+
+typedef struct ogk_color_t {
+	float red, green, blue, alpha;
+} ogk_color_t;
+
+static OF_INLINE ogk_color_t
+ogk_color(float red, float green, float blue, float alpha)
+{
+	ogk_color_t color = { red, green, blue, alpha};
+
+	return color;
+}
+
+extern ogk_color_t OGK_COLOR_BLACK;
+
+@interface OGKBitmap: OFObject
+{
+	ALLEGRO_BITMAP *bitmap;
+}
+
++ (void)setTarget: (id)target;
++ (void)clearToColor: (ogk_color_t)color;
+- initWithSize: (of_dimension_t)size;
+- initWithFile: (OFString*)file;
+- (void)drawAtPosition: (of_point_t)position;
+- (ALLEGRO_BITMAP*)OGK_allegroBitmap;
+@end

src/OGKBitmap.m

@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2012 Jonathan Schleifer <js@webkeks.org>
+ *
+ * This software is provided 'as-is', without any express or implied warranty.
+ * In no event will the authors be held liable for any damages arising from the
+ * use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ *   1.) The origin of this software must not be misrepresented; you must not
+ *       claim that you wrote the original software. If you use this software
+ *       in a product, an acknowledgment in the product documentation would be
+ *       appreciated but is not required.
+ *   2.) Altered source versions must be plainly marked as such, and must not
+ *       be misrepresented as being the original software.
+ *   3.) This notice may not be removed or altered from any source distribution.
+ */
+
+#include <allegro5/allegro.h>
+#include <allegro5/allegro_image.h>
+
+#import "OGKBitmap.h"
+#import "OGKDisplay.h"
+
+ogk_color_t OGK_COLOR_BLACK = { 0, 0, 0, 1 };
+
+@implementation OGKBitmap
++ (void)initialize
+{
+	if (self != [OGKBitmap class])
+		return;
+
+	if (!al_install_system(ALLEGRO_VERSION_INT, NULL) ||
+	    !al_init_image_addon())
+		@throw [OFInitializationFailedException
+		    exceptionWithClass: self];
+}
+
++ (void)setTarget: (id)target
+{
+	if ([target isKindOfClass: [OGKDisplay class]])
+		al_set_target_backbuffer([target OGK_allegroDisplay]);
+	else
+		al_set_target_bitmap([target OGK_allegroBitmap]);
+}
+
++ (void)clearToColor: (ogk_color_t)color
+{
+	al_clear_to_color(
+	    al_map_rgb(color.red * 256, color.green * 256, color.blue * 256));
+}
+
+- initWithSize: (of_dimension_t)size
+{
+	self = [super init];
+
+	bitmap = al_create_bitmap(size.width, size.height);
+
+	if (bitmap == NULL)
+		@throw [OFInitializationFailedException
+		    exceptionWithClass: [self class]];
+
+	return self;
+}
+
+- initWithFile: (OFString*)path
+{
+	self = [super init];
+
+	bitmap = al_load_bitmap(
+	    [path cStringWithEncoding: OF_STRING_ENCODING_NATIVE]);
+
+	if (bitmap == NULL)
+		@throw [OFInitializationFailedException
+		    exceptionWithClass: [self class]];
+
+	return self;
+}
+
+- (void)drawAtPosition: (of_point_t)position
+{
+	al_draw_bitmap(bitmap, position.x, position.y, 0);
+}
+
+- (ALLEGRO_BITMAP*)OGK_allegroBitmap
+{
+	return bitmap;
+}
+@end

src/OGKDisplay.h

@@ -27,11 +27,9 @@
 	ALLEGRO_DISPLAY *display;
 }
 
-+ displayWithSize: (of_dimension_t)size
-       fullscreen: (BOOL)fullscreen
-	resizable: (BOOL)resizable;
 - initWithSize: (of_dimension_t)size
     fullscreen: (BOOL)fullscreen
      resizable: (BOOL)resizable;
+- (void)update;
 - (ALLEGRO_DISPLAY*)OGK_allegroDisplay;
 @end

src/OGKDisplay.m

@@ -31,15 +31,6 @@
 		    exceptionWithClass: self];
 }
 
-+ displayWithSize: (of_dimension_t)size
-       fullscreen: (BOOL)fullscreen
-	resizable: (BOOL)resizable
-{
-	return [[self alloc] initWithSize: size
-			       fullscreen: fullscreen
-				resizable: resizable];
-}
-
 - initWithSize: (of_dimension_t)size
     fullscreen: (BOOL)fullscreen
      resizable: (BOOL)resizable
@@ -75,6 +66,11 @@
 		al_destroy_display(display);
 }
 
+- (void)update
+{
+	al_flip_display();
+}
+
 - (ALLEGRO_DISPLAY*)OGK_allegroDisplay
 {
 	return display;