1 files changed, 33 insertions, 0 deletions
diff --git a/graymap_alleg.c b/graymap_alleg.c
new file mode 100644
index 0000000..6380436
--- /dev/null
+++ b/graymap_alleg.c
@@ -0,0 +1,33 @@
+#include "common_types.h"
+#include "graymap_alleg.h"
+#include "graymap.h"
+#include <math.h>
+#include <allegro.h>
+
+void render_graymap_alleg(BITMAP* canvas, graymap_t* gm, color_t* pal_cols,
+ double* pal_grays, int pal_n)
+{
+	int limit_w = gm->w;
+	int limit_h = gm->h;
+	if(limit_w > canvas->w)
+		limit_w = canvas->w;
+	if(limit_h > canvas->h)
+		limit_h = canvas->h;
+	
+	color_t col;
+	
+	int x,y,i;
+	uint_8 r,g,b,a;
+	for(y = 0, i = 0; y < limit_h; ++y)
+	{
+		for(x = 0; x < limit_w; ++x, ++i)
+		{
+			col = get_palette_color(gm->data[i], pal_cols, pal_grays, pal_n);
+			r = (uint_8) round(col.r * 255.0);
+			g = (uint_8) round(col.g * 255.0);
+			b = (uint_8) round(col.b * 255.0);
+			a = (uint_8) round(col.a * 255.0);
+			putpixel(canvas, x,y,makeacol(r,g,b,a));
+		}
+	}
+}