From f6792a3ed33fb3e27015accad2385c7b86a00559 Mon Sep 17 00:00:00 2001
From: Robin Watts <robin.watts@artifex.com>
Date: Wed, 20 Jul 2016 17:43:05 +0100
Subject: Fix missing alpha only plotter.

Spotted with:

 mutool draw -A0 -r600 -o out.ppm J11_acrobat.pdf
---
 source/fitz/draw-paint.c | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

(limited to 'source/fitz/draw-paint.c')

diff --git a/source/fitz/draw-paint.c b/source/fitz/draw-paint.c
index afeb989f..00b3868d 100644
--- a/source/fitz/draw-paint.c
+++ b/source/fitz/draw-paint.c
@@ -358,6 +358,24 @@ template_solid_color_N_general(byte * restrict dp, int n, int w, const byte * re
 }
 #endif
 
+static inline void
+template_solid_color_0_da(byte * restrict dp, int w, int sa)
+{
+	if (sa == 256)
+	{
+		memset(dp, 255, w);
+	}
+	else
+	{
+		do
+		{
+			*dp = FZ_BLEND(255, *dp, sa);
+			dp++;
+		}
+		while (--w);
+	}
+}
+
 #if FZ_PLOTTERS_G
 static void paint_solid_color_1_alpha(byte * restrict dp, int n, int w, const byte * restrict color, int da)
 {
@@ -378,6 +396,12 @@ static void paint_solid_color_1_da(byte * restrict dp, int n, int w, const byte
 }
 #endif /* FZ_PLOTTERS_G */
 
+static void paint_solid_color_0_da(byte * restrict dp, int n, int w, const byte * restrict color, int da)
+{
+	TRACK_FN();
+	template_solid_color_0_da(dp, w, 1);
+}
+
 #if FZ_PLOTTERS_RGB
 static void paint_solid_color_3_alpha(byte * restrict dp, int n, int w, const byte * restrict color, int da)
 {
@@ -443,6 +467,8 @@ fz_get_solid_color_painter(int n, const byte * restrict color, int da)
 {
 	switch (n-da)
 	{
+		case 0:
+			return paint_solid_color_0_da;
 #if FZ_PLOTTERS_G
 		case 1:
 			if (da)
-- 
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