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authorMatthias Melcher <github@matthiasm.com>2022-02-06 15:22:24 +0100
committerGitHub <noreply@github.com>2022-02-06 15:22:24 +0100
commitdb0a1f4baeb928b54d328d5dfbd0ec37b0b58bd3 (patch)
treeed53495f5dd435d7c23cd4267fb785e5ebca679c /FL
parentaf4954aee3483f03ff69e990e80f4e4a18e8b7f6 (diff)
OpenGL implementation of all `fl_` "Drawing Fast Shapes" graphics calls (#385)
* Fix build system for unites, * Updated unittest to check OpenGL drawing. Making sure that OpenGL drawing is exactly the same as native drawing to make FLTK widget rendering look the same in GL windows. * Make OpenGL optional. * Implemented clipping in OpenGL * unites drawing fast shapes * Fixed CMake * Updating unittest. Added tests for fl_pi and fl_arc (int) Renamed tab to render complex shapes. * Improved OpenGL FLTK drawing emulation. * Fixed GTK ROUND DOWN BOX * Fixing Makefile for unittest * Correctly aligning OpenGL text. * Fixed text alignment in GL windows. Explained the "FLTK over GL " example in Cube. * Overlapping test. * Better GL graphics alignment. * Drawing the focus rect. * Adding Alpha Channel support for GL. * Added FLTK-on-GL documentation.
Diffstat (limited to 'FL')
-rw-r--r--FL/Fl.H2
-rw-r--r--FL/Fl_Gl_Window.H2
2 files changed, 4 insertions, 0 deletions
diff --git a/FL/Fl.H b/FL/Fl.H
index a19788545..5c84a8d10 100644
--- a/FL/Fl.H
+++ b/FL/Fl.H
@@ -1063,6 +1063,7 @@ int main() {
// color map:
static void set_color(Fl_Color, uchar, uchar, uchar);
+ static void set_color(Fl_Color, uchar, uchar, uchar, uchar);
/**
Sets an entry in the fl_color index table. You can set it to any
8-bit RGB color. The color is not allocated until fl_color(i) is used.
@@ -1070,6 +1071,7 @@ int main() {
static void set_color(Fl_Color i, unsigned c); // platform dependent
static unsigned get_color(Fl_Color i);
static void get_color(Fl_Color i, uchar &red, uchar &green, uchar &blue);
+ static void get_color(Fl_Color i, uchar &red, uchar &green, uchar &blue, uchar &alpha);
/**
Frees the specified color from the colormap, if applicable.
If overlay is non-zero then the color is freed from the
diff --git a/FL/Fl_Gl_Window.H b/FL/Fl_Gl_Window.H
index e3279f915..7d99f1a03 100644
--- a/FL/Fl_Gl_Window.H
+++ b/FL/Fl_Gl_Window.H
@@ -67,7 +67,9 @@ class FL_EXPORT Fl_Gl_Window : public Fl_Window {
int mode(int, const int *);
static int gl_plugin_linkage();
protected:
+ void draw_begin();
virtual void draw();
+ void draw_end();
public:
void show();