From 119d5f76cf5b96b9aae8c20931b52e5c0081e3f4 Mon Sep 17 00:00:00 2001
From: hunterk <hunter_kaller@yahoo.com>
Date: Wed, 10 Aug 2016 16:22:43 -0500
Subject: [PATCH] add crashy aa-shader-4.0

---
 .../anti-aliasing/aa-shader-4.0.slangp        |  10 ++
 .../anti-aliasing/shaders/aa-shader-4.0.slang | 102 ++++++++++++++++++
 2 files changed, 112 insertions(+)
 create mode 100644 test/nonfunctional/anti-aliasing/aa-shader-4.0.slangp
 create mode 100644 test/nonfunctional/anti-aliasing/shaders/aa-shader-4.0.slang

diff --git a/test/nonfunctional/anti-aliasing/aa-shader-4.0.slangp b/test/nonfunctional/anti-aliasing/aa-shader-4.0.slangp
new file mode 100644
index 0000000..cea6e0a
--- /dev/null
+++ b/test/nonfunctional/anti-aliasing/aa-shader-4.0.slangp
@@ -0,0 +1,10 @@
+shaders = 1
+
+shader0 = shaders/aa-shader-4.0.slang
+filter_linear0 = false
+scale_type0 = viewport
+scale0 = 1.0
+
+shader1 = ../sharpen/shaders/adaptive-sharpen.slang
+filter_linear1 = false
+scale_type_1 = source
diff --git a/test/nonfunctional/anti-aliasing/shaders/aa-shader-4.0.slang b/test/nonfunctional/anti-aliasing/shaders/aa-shader-4.0.slang
new file mode 100644
index 0000000..fe305b5
--- /dev/null
+++ b/test/nonfunctional/anti-aliasing/shaders/aa-shader-4.0.slang
@@ -0,0 +1,102 @@
+#version 450
+
+layout(push_constant) uniform Push
+{
+	vec4 SourceSize;
+	vec4 OriginalSize;
+	vec4 OutputSize;
+	uint FrameCount;
+	float INTERNAL_RES;
+} params;
+
+#pragma parameter INTERNAL_RES "Internal Resolution" 1.0 1.0 8.0 1.0
+
+layout(std140, set = 0, binding = 0) uniform UBO
+{
+	mat4 MVP;
+} global;
+
+const vec3 dt = vec3(1.0,1.0,1.0);
+
+vec3 texture2d (sampler2D tex, vec2 coord, vec4 yx) {
+
+	vec3 s00 = texture(tex, coord + yx.zw).xyz; 
+	vec3 s20 = texture(tex, coord + yx.xw).xyz; 
+	vec3 s22 = texture(tex, coord + yx.xy).xyz; 
+	vec3 s02 = texture(tex, coord + yx.zy).xyz; 
+
+	float m1=dot(abs(s00-s22),dt)+0.001;
+	float m2=dot(abs(s02-s20),dt)+0.001;
+
+	return 0.5*(m2*(s00+s22)+m1*(s02+s20))/(m1+m2);
+}
+
+#pragma stage vertex
+layout(location = 0) in vec4 Position;
+layout(location = 1) in vec2 TexCoord;
+layout(location = 0) out vec2 vTexCoord;
+
+void main()
+{
+   gl_Position = global.MVP * Position;
+   vTexCoord = TexCoord;
+}
+
+#pragma stage fragment
+layout(location = 0) in vec2 vTexCoord;
+layout(location = 0) out vec4 FragColor;
+layout(set = 0, binding = 2) uniform sampler2D Source;
+
+void main()
+{
+	// Calculating texel coordinates
+	vec2 size     = 4.0 * params.SourceSize.xy / params.INTERNAL_RES;
+//	vec2 size     = X * (params.OutputSize.xy * params.SourceSize.zw) * params.SourceSize.xy;
+	vec2 inv_size = 1.0 / size;
+
+	vec4 yx = vec4(inv_size, -inv_size);
+	
+	vec2 OGL2Pos = vTexCoord * size;
+
+	vec2 fp = fract(OGL2Pos);
+	vec2 dx = vec2(inv_size.x,0.0);
+	vec2 dy = vec2(0.0, inv_size.y);
+	vec2 g1 = vec2(inv_size.x,inv_size.y);
+	vec2 g2 = vec2(-inv_size.x,inv_size.y);
+	
+	vec2 pC4 = floor(OGL2Pos) * inv_size;	
+	
+	// Reading the texels
+	vec3 C0 = texture2d(Source, pC4 - g1, yx); 
+	vec3 C1 = texture2d(Source, pC4 - dy, yx);
+	vec3 C2 = texture2d(Source, pC4 - g2, yx);
+	vec3 C3 = texture2d(Source, pC4 - dx, yx);
+	vec3 C4 = texture2d(Source, pC4     , yx);
+	vec3 C5 = texture2d(Source, pC4 + dx, yx);
+	vec3 C6 = texture2d(Source, pC4 + g2, yx);
+	vec3 C7 = texture2d(Source, pC4 + dy, yx);
+	vec3 C8 = texture2d(Source, pC4 + g1, yx);
+	
+	vec3 ul, ur, dl, dr;
+	float m1, m2;
+	
+	m1 = dot(abs(C0-C4),dt)+0.001;
+	m2 = dot(abs(C1-C3),dt)+0.001;
+	ul = (m2*(C0+C4)+m1*(C1+C3))/(m1+m2);  
+	
+	m1 = dot(abs(C1-C5),dt)+0.001;
+	m2 = dot(abs(C2-C4),dt)+0.001;
+	ur = (m2*(C1+C5)+m1*(C2+C4))/(m1+m2);
+	
+	m1 = dot(abs(C3-C7),dt)+0.001;
+	m2 = dot(abs(C6-C4),dt)+0.001;
+	dl = (m2*(C3+C7)+m1*(C6+C4))/(m1+m2);
+	
+	m1 = dot(abs(C4-C8),dt)+0.001;
+	m2 = dot(abs(C5-C7),dt)+0.001;
+	dr = (m2*(C4+C8)+m1*(C5+C7))/(m1+m2);
+	
+	vec3 c11 = 0.5*((dr*fp.x+dl*(1-fp.x))*fp.y+(ur*fp.x+ul*(1-fp.x))*(1-fp.y) );
+	
+   FragColor = vec4(c11, 1.0);
+}
\ No newline at end of file