Make Movit work in premultiplied alpha.

[movit] / flat_input.cpp

diff --git a/flat_input.cpp b/flat_input.cpp
index 31800a74a28c69dc7368d47e48c7ce77cfa1431a..6e118bc3a3c1b5633bc786772ce85d377fffb9ed 100644 (file)
--- a/flat_input.cpp
+++ b/flat_input.cpp
@@ -1,9 +1,9 @@
 #include <string.h>
 #include <assert.h>
+#include <GL/glew.h>
 
 #include "flat_input.h"
 #include "util.h"
-#include "opengl.h"
 
 FlatInput::FlatInput(ImageFormat image_format, MovitPixelFormat pixel_format, GLenum type, unsigned width, unsigned height)
        : image_format(image_format),
@@ -44,7 +44,7 @@ void FlatInput::finalize()
                internal_format = GL_RGBA16F_ARB;
        } else if (output_linear_gamma) {
                assert(type == GL_UNSIGNED_BYTE);
-               internal_format = GL_SRGB8;
+               internal_format = GL_SRGB8_ALPHA8;
        } else {
                assert(type == GL_UNSIGNED_BYTE);
                internal_format = GL_RGBA8;
@@ -85,6 +85,8 @@ void FlatInput::finalize()
        check_error();
        glBindTexture(GL_TEXTURE_2D, texture_num);
        check_error();
+       glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+       check_error();
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, needs_mipmaps ? GL_LINEAR_MIPMAP_NEAREST : GL_LINEAR);
        check_error();
        glPixelStorei(GL_UNPACK_ROW_LENGTH, pitch);