perf profiler, simplify 2d render, string struct, many small things

1 files changed, 13 insertions, 1 deletions

diff --git a/assets/shaders/2d.fsh b/assets/shaders/2d.fsh
index 15465af..ba1fa59 100644
--- a/assets/shaders/2d.fsh
+++ b/assets/shaders/2d.fsh
@@ -1,7 +1,19 @@
 #version 150
 
+uniform sampler2D g_samplers[255];
+
+const uint SAMPLER_ID_NONE = 255u;
+
+in vec2 g_texcoord;
 in vec4 g_color;
+flat in uint g_sampler;
 
 void main() {
-  gl_FragColor = g_color;
+  vec4 color = g_color;
+  if( g_sampler != SAMPLER_ID_NONE ) {
+    vec4 tex_color = texture2D( g_samplers[g_sampler], g_texcoord );
+    color *= tex_color;
+    if (color.a < 0.01) discard;
+  }
+  gl_FragColor = color;
 }