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-rw-r--r--data/Makefile.am4
-rw-r--r--data/shaders/font-fragment.glsl8
-rw-r--r--data/shaders/font-vertex.glsl15
3 files changed, 26 insertions, 1 deletions
diff --git a/data/Makefile.am b/data/Makefile.am
index b6d0d74..8fc3a3e 100644
--- a/data/Makefile.am
+++ b/data/Makefile.am
@@ -4,4 +4,6 @@ fonts_DATA = fonts/DejaVuSans.ttf
shadersdir = $(pkgdatadir)/shaders
shaders_DATA = \
shaders/sprite-vertex.glsl \
- shaders/sprite-fragment.glsl
+ shaders/sprite-fragment.glsl \
+ shaders/font-vertex.glsl \
+ shaders/font-fragment.glsl
diff --git a/data/shaders/font-fragment.glsl b/data/shaders/font-fragment.glsl
new file mode 100644
index 0000000..3dd10f1
--- /dev/null
+++ b/data/shaders/font-fragment.glsl
@@ -0,0 +1,8 @@
+#version 120
+
+uniform sampler2D color_texture;
+uniform vec4 color;
+
+void main (void) {
+ gl_FragColor = texture2D(color_texture, gl_TexCoord[0].st) * color;
+}
diff --git a/data/shaders/font-vertex.glsl b/data/shaders/font-vertex.glsl
new file mode 100644
index 0000000..196da12
--- /dev/null
+++ b/data/shaders/font-vertex.glsl
@@ -0,0 +1,15 @@
+#version 120
+
+uniform mat4 projection;
+uniform vec2 position;
+uniform vec2 anchor;
+
+void main(void) {
+ mat4 translation = mat4(1.0, 0.0, 0.0, position.x - anchor.x,
+ 0.0, 1.0, 0.0, position.y - anchor.y,
+ 0.0, 0.0, 1.0, 0.0,
+ 0.0, 0.0, 0.0, 1.0);
+
+ gl_Position = projection * (gl_Vertex * translation);
+ gl_TexCoord[0] = gl_MultiTexCoord0;
+}