From: Steinar H. Gunderson <sgunderson@bigfoot.com>
Date: Thu, 20 Mar 2014 20:15:13 +0000 (+0100)
Subject: Use the right internal format for FORMAT_R non-float textures.
X-Git-Tag: 1.1~12^2~24
X-Git-Url: https://git.sesse.net/?p=movit;a=commitdiff_plain;h=bd98e07fa5ba3cb783e8e9d16ab4cc93a9fa3100;hp=ab89030be6f55cd1955b9e033c62c2e3c3ba2a2f

Use the right internal format for FORMAT_R non-float textures.
---

diff --git a/flat_input.cpp b/flat_input.cpp
index 55c65cc..5978ca3 100644
--- a/flat_input.cpp
+++ b/flat_input.cpp
@@ -74,7 +74,13 @@ void FlatInput::set_gl_state(GLuint glsl_program_num, const string& prefix, unsi
 			internal_format = GL_SRGB8_ALPHA8;
 		} else {
 			assert(type == GL_UNSIGNED_BYTE);
-			internal_format = GL_RGBA8;
+			if (pixel_format == FORMAT_R) {
+				internal_format = GL_R8;
+			} else if (pixel_format == FORMAT_RG) {
+				internal_format = GL_RG8;
+			} else {
+				internal_format = GL_RGBA8;
+			}
 		}
 		if (pixel_format == FORMAT_RGB) {
 			format = GL_RGB;