Small cleanup in movit.pc.in.

[movit] / flat_input.h

diff --git a/flat_input.h b/flat_input.h
index 8b5a3ce4c07d004368063634014b9c88087cd3fc..80e113f67c7f01b5945764c45ca3c18901a573d2 100644 (file)
--- a/flat_input.h
+++ b/flat_input.h
@@ -1,8 +1,14 @@
 #ifndef _FLAT_INPUT_H
 #define _FLAT_INPUT_H 1
 
-#include "input.h"
+#include <GL/glew.h>
+#include <assert.h>
+#include <string>
+
+#include "effect.h"
+#include "image_format.h"
 #include "init.h"
+#include "input.h"
 
 // A FlatInput is the normal, “classic” case of an input, where everything
 // comes from a single 2D array with chunky pixels.
@@ -24,6 +30,22 @@ public:
                        (image_format.gamma_curve == GAMMA_LINEAR ||
                         image_format.gamma_curve == GAMMA_sRGB));
        }
+       virtual AlphaHandling alpha_handling() const {
+               switch (pixel_format) {
+               case FORMAT_RGBA_PREMULTIPLIED_ALPHA:
+               case FORMAT_BGRA_PREMULTIPLIED_ALPHA:
+                       return INPUT_AND_OUTPUT_PREMULTIPLIED_ALPHA;
+               case FORMAT_RGBA_POSTMULTIPLIED_ALPHA:
+               case FORMAT_BGRA_POSTMULTIPLIED_ALPHA:
+                       return OUTPUT_POSTMULTIPLIED_ALPHA;
+               case FORMAT_RGB:
+               case FORMAT_BGR:
+               case FORMAT_GRAYSCALE:
+                       return OUTPUT_BLANK_ALPHA;
+               default:
+                       assert(false);
+               }
+       }
 
        std::string output_fragment_shader();