gistfile1.diff

diff --git a/engines/myst3/gfx_opengl_texture.cpp b/engines/myst3/gfx_opengl_texture.cpp
index 6f855ca..558ebd7 100644
--- a/engines/myst3/gfx_opengl_texture.cpp
+++ b/engines/myst3/gfx_opengl_texture.cpp
@@ -56,7 +56,7 @@ OpenGLTexture::OpenGLTexture(const Graphics::Surface *surface, bool nonPoTSuppor
 
        if (format.bytesPerPixel == 4) {
                internalFormat = GL_RGBA;
-               sourceFormat = GL_UNSIGNED_BYTE;
+               sourceFormat = GL_UNSIGNED_INT_8_8_8_8_REV;
        } else if (format.bytesPerPixel == 2) {
                internalFormat = GL_RGB;
                sourceFormat = GL_UNSIGNED_SHORT_5_6_5;
@@ -83,6 +83,7 @@ OpenGLTexture::~OpenGLTexture() {
 
 void OpenGLTexture::update(const Graphics::Surface *surface) {
        glBindTexture(GL_TEXTURE_2D, id);
+
        glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, surface->w, surface->h, internalFormat, sourceFormat, surface->getPixels());
 }