Merge branch 'master' of git://repo.or.cz/factor/jcg

extra/cairo/gadgets/gadgets.factor

@@ -1,58 +1,34 @@
 ! Copyright (C) 2008 Matthew Willis.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: sequences math opengl.gadgets kernel
+USING: sequences math kernel byte-arrays cairo.ffi cairo
-byte-arrays cairo.ffi cairo io.backend
+io.backend ui.gadgets accessors opengl.gl arrays fry
-ui.gadgets accessors opengl.gl
+classes ui.render namespaces ;
-arrays fry classes ;
 
 IN: cairo.gadgets
 
 : width>stride ( width -- stride ) 4 * ;
     
-: copy-cairo ( dim quot -- byte-array )
+GENERIC: render-cairo* ( gadget -- )
-    >r first2 over width>stride
-    [ * nip <byte-array> dup CAIRO_FORMAT_ARGB32 ]
-    [ cairo_image_surface_create_for_data ] 3bi
-    r> with-cairo-from-surface ; inline
 
-TUPLE: cairo-gadget < texture-gadget ;
+: render-cairo ( gadget -- byte-array )
+    dup dim>> first2 over width>stride
+    [ * nip <byte-array> dup CAIRO_FORMAT_ARGB32 ] 
+    [ cairo_image_surface_create_for_data ] 3bi
+    rot '[ _ render-cairo* ] with-cairo-from-surface ; inline
+
+TUPLE: cairo-gadget < gadget ;
 
 : <cairo-gadget> ( dim -- gadget )
     cairo-gadget new-gadget
         swap >>dim ;
 
-M: cairo-gadget cache-key* [ dim>> ] [ class ] bi 2array ;
+M: cairo-gadget draw-gadget*
-
+    [ dim>> ] [ render-cairo ] bi
-: render-cairo ( dim quot -- bytes format )
+    origin get first2 glRasterPos2i
-    >r 2^-bounds r> copy-cairo GL_BGRA ; inline
+    1.0 -1.0 glPixelZoom
-
+    >r first2 GL_BGRA GL_UNSIGNED_BYTE r>
-GENERIC: render-cairo* ( gadget -- )
+    glDrawPixels ;
-
-M: cairo-gadget render*
-    [ dim>> dup ] [ '[ _ render-cairo* ] ] bi
-    render-cairo render-bytes* ;
-
-! maybe also texture>png
-! : cairo>png ( gadget path -- )
-!    >r [ cairo>bytes CAIRO_FORMAT_ARGB32 ] [ width>> ]
-!    [ height>> ] tri over width>stride
-!    cairo_image_surface_create_for_data
-!    r> [ cairo_surface_write_to_png check-cairo ] curry with-surface ;
 
 : copy-surface ( surface -- )
     cr swap 0 0 cairo_set_source_surface
     cr cairo_paint ;
-
-TUPLE: png-gadget < texture-gadget path ;
-: <png> ( path -- gadget )
-    png-gadget new-gadget
-        swap >>path ;
-
-M: png-gadget render*
-    path>> normalize-path cairo_image_surface_create_from_png
-    [ cairo_image_surface_get_width ]
-    [ cairo_image_surface_get_height 2array dup 2^-bounds ]
-    [ [ copy-surface ] curry copy-cairo ] tri
-    GL_BGRA render-bytes* ;
-
-M: png-gadget cache-key* path>> ;

extra/opengl/gadgets/gadgets.factor

@@ -47,6 +47,11 @@ C: <entry> cache-entry
     cache-key* textures get delete-at*
     [ tex>> delete-texture ] [ drop ] if ;
 
+: clear-textures ( -- )
+    textures get values [ tex>> delete-texture ] each
+    H{ } clone textures set-global
+    H{ } clone refcounts set-global ;
+
 M: texture-gadget graft* ( gadget -- ) [ 1+ ] refcount-change ;
 
 M: texture-gadget ungraft* ( gadget -- )

extra/spheres/spheres.factor

@@ -15,16 +15,26 @@ main()
 ;
 
 STRING: plane-fragment-shader
+uniform float checker_size_inv;
+uniform vec4 checker_color_1, checker_color_2;
 varying vec3 object_position;
+
+bool
+checker_color(vec3 p)
+{
+    vec3 pprime = checker_size_inv * object_position;
+    return fract((floor(pprime.x) + floor(pprime.z)) * 0.5) == 0.0;
+}
+
 void
 main()
 {
     float distance_factor = (gl_FragCoord.z * 0.5 + 0.5);
     distance_factor = pow(distance_factor, 500.0)*0.5;
     
-    gl_FragColor = fract((floor(0.125*object_position.x)+floor(0.125*object_position.z)) * 0.5) == 0.0
+    gl_FragColor = checker_color(object_position)
-        ? vec4(1.0, 1.0 - distance_factor, 1.0 - distance_factor, 1.0)
+        ? mix(checker_color_1, checker_color_2, distance_factor)
-        : vec4(1.0, distance_factor, distance_factor, 1.0);
+        : mix(checker_color_2, checker_color_1, distance_factor);
 }
 ;
 
@@ -213,7 +223,11 @@ M: spheres-gadget pref-dim* ( gadget -- dim )
         ] with-gl-program
     ] [
         plane-program>> [
-            drop
+            {
+                [ "checker_size_inv" glGetUniformLocation 0.125 glUniform1f ]
+                [ "checker_color_1"  glGetUniformLocation 1.0 0.5 0.0 1.0 glUniform4f ]
+                [ "checker_color_2"  glGetUniformLocation 0.0 0.0 0.0 1.0 glUniform4f ]
+            } cleave
             GL_QUADS [
                 -1000.0 -30.0  1000.0 glVertex3f
                 -1000.0 -30.0 -1000.0 glVertex3f