steve
/
factor
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Add with-software-renderer combinator to cocoa.views . Hack up shader code in line-art to make it display properly with the Apple software OpenGL implementation

db4
Joe Groff 2008-01-29 22:01:06 -08:00
parent d56acaab86
commit ae31bc65d2
2 changed files with 42 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
extra/cocoa/views/views.factor
View File

@ -1,7 +1,8 @@
! Copyright (C) 2006, 2007 Slava Pestov
! See http://factorcode.org/license.txt for BSD license.
USING: alien.c-types arrays kernel math namespaces cocoa
cocoa.messages cocoa.classes cocoa.types sequences ;
cocoa.messages cocoa.classes cocoa.types sequences
continuations ;
IN: cocoa.views
: NSOpenGLPFAAllRenderers 1 ;
@ -35,11 +36,23 @@ IN: cocoa.views
: NSOpenGLPFAPixelBuffer 90 ;
: NSOpenGLPFAVirtualScreenCount 128 ;
<PRIVATE
SYMBOL: +software-renderer+
PRIVATE>
: with-software-renderer ( quot -- )
t +software-renderer+ set
[ f +software-renderer+ set ]
[ ] cleanup ; inline
: <PixelFormat> ( -- pixelfmt )
NSOpenGLPixelFormat -> alloc [
NSOpenGLPFAWindow ,
NSOpenGLPFADoubleBuffer ,
NSOpenGLPFADepthSize , 16 ,
+software-renderer+ get [ NSOpenGLPFARobust , ] when
0 ,
] { } make >c-int-array
-> initWithAttributes:

56
extra/line-art/line-art.factor
View File

@ -57,13 +57,7 @@ uniform sampler2D colormap, normalmap, depthmap;
uniform vec4 line_color;
varying vec2 coord;
const float DEPTH_RATIO_THRESHOLD = 1.001, NORMAL_DOT_THRESHOLD = 1.0, SAMPLE_SPREAD = 1.0/512.0;
bool
is_normal_border(vec3 norm1, vec3 norm2)
{
return dot(norm1, norm2) < NORMAL_DOT_THRESHOLD;
}
const float DEPTH_RATIO_THRESHOLD = 1.001, SAMPLE_SPREAD = 1.0/512.0;
float
depth_sample(vec2 c)
@ -97,33 +91,39 @@ border_factor(vec2 c)
coord3 = c + vec2(-SAMPLE_SPREAD, SAMPLE_SPREAD),
coord4 = c + vec2( SAMPLE_SPREAD, SAMPLE_SPREAD);
vec4 depths = vec4(depth_sample(coord1),
depth_sample(coord2),
depth_sample(coord3),
depth_sample(coord4));
if (depths == vec4(1, 1, 1, 1))
return 0.0;
vec3 ratios1 = depths.xxx/depths.yzw, ratios2 = depths.yyz/depths.zww;
if (are_depths_border(ratios1) || are_depths_border(ratios2))
return 1.0;
vec3 normal1 = normal_sample(coord1),
normal2 = normal_sample(coord2),
normal3 = normal_sample(coord3),
normal4 = normal_sample(coord4);
if (dot(normal1, normal1) < 0.5
&& dot(normal2, normal2) < 0.5
&& dot(normal3, normal3) < 0.5
&& dot(normal4, normal4) < 0.5) {
return 0.0;
} else {
vec4 depths = vec4(depth_sample(coord1),
depth_sample(coord2),
depth_sample(coord3),
depth_sample(coord4));
float normal_border = 1.0 - min6(
dot(normal1, normal2),
dot(normal1, normal3),
dot(normal1, normal4),
dot(normal2, normal3),
dot(normal2, normal4),
dot(normal3, normal4)
);
vec3 ratios1 = depths.xxx/depths.yzw, ratios2 = depths.yyz/depths.zww;
return normal_border;
if (are_depths_border(ratios1) || are_depths_border(ratios2)) {
return 1.0;
} else {
float normal_border = 1.0 - min6(
dot(normal1, normal2),
dot(normal1, normal3),
dot(normal1, normal4),
dot(normal2, normal3),
dot(normal2, normal4),
dot(normal3, normal4)
);
return normal_border;
}
}
}
void