From 5b1e824640a4466e09a7752e06db51a19b28b56f Mon Sep 17 00:00:00 2001
From: Patrick McDermott <patrick.mcdermott@libiquity.com>
Date: Wed, 17 Jul 2019 17:59:56 -0400
Subject: image_render(): Switch to 8-bit/color RGB

---
diff --git a/src/image.c b/src/image.c
index d059192..45c3352 100644
--- a/src/image.c
+++ b/src/image.c
@@ -30,17 +30,15 @@
 #include "i18n.h"
 #include "text.h"
 
-#define BIT_DEPTH    4
-#define PALETTE_SIZE (1 << BIT_DEPTH)
-#define PIXEL_SIZE   ((BIT_DEPTH + 7) / 8)
+#define BIT_DEPTH    8
+#define CHANNELS     3
+#define PIXEL_SIZE   ((BIT_DEPTH + 7) / 8) * CHANNELS
 
 struct image {
 	png_structp  png_ptr;
 	png_infop    info_ptr;
 };
 
-static png_color palette[PALETTE_SIZE];
-
 struct image *
 image_new(const char *file_name)
 {
@@ -86,9 +84,8 @@ image_render(struct image *image, struct text *text, struct font *font)
 	height = text_get_height(text) * font_get_height(font);
 
 	png_set_IHDR(image->png_ptr, image->info_ptr, width, height,
-			BIT_DEPTH, PNG_COLOR_TYPE_PALETTE, PNG_INTERLACE_NONE,
+			BIT_DEPTH, PNG_COLOR_TYPE_RGB, PNG_INTERLACE_NONE,
 			PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
-	png_set_PLTE(image->png_ptr, image->info_ptr, palette, PALETTE_SIZE);
 
 	rows = png_malloc(image->png_ptr, height * sizeof(*rows));
 	for (i = 0; i < height; ++i) {
--
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