X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=laserbrain_demo;a=blobdiff_plain;f=src%2Ftexture.cc;fp=src%2Ftexture.cc;h=ff4d1b57c4244825832f31ceb8593bb43dffa12f;hp=dae0c7c46653491535bdca725aa4f255c59c2609;hb=e6e1e5deb60ccbb4fa175066820d81ad1bf1cefa;hpb=619c5f42a1bf0dcf16fd9210e0e4d7d42fecf5de

diff --git a/src/texture.cc b/src/texture.cc
index dae0c7c..ff4d1b5 100644
--- a/src/texture.cc
+++ b/src/texture.cc
@@ -245,6 +245,8 @@ void Texture::set_image_2d(const Image &img)
 	glTexParameteri(target, GL_TEXTURE_WRAP_S, GL_REPEAT);
 	glTexParameteri(target, GL_TEXTURE_WRAP_T, GL_REPEAT);
 
+	glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+
 #ifdef __GLEW_H__
 	if(GLEW_SGIS_generate_mipmap) {
 		glTexParameteri(target, GL_GENERATE_MIPMAP_SGIS, GL_TRUE);
@@ -263,6 +265,7 @@ void Texture::set_image_2d(const Image &img)
 
 bool Texture::set_image_cube(const Image &img, int idx)
 {
+	unsigned int err;
 	if(idx < 0 || idx >= 6) {
 		return false;
 	}
@@ -276,7 +279,10 @@ bool Texture::set_image_cube(const Image &img, int idx)
 
 	target = GL_TEXTURE_CUBE_MAP;
 	glBindTexture(target, id);
-	assert(glGetError() == GL_NO_ERROR);
+	if((err = glGetError()) == GL_INVALID_OPERATION) {
+		return false;	// probably not a cubemap
+	}
+	assert(err == GL_NO_ERROR);
 	glTexParameteri(target, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 	glTexParameteri(target, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 	glTexParameteri(target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
@@ -301,15 +307,15 @@ bool Texture::set_image_cube(const Image &img)
 	int xsz = img.get_width();
 	int ysz = img.get_height();
 
-	if(xsz / 4 == ysz / 3) {
+	if((xsz << 8) / 4 == (ysz << 8) / 3) {
 		// horizontal cross, assume the vertical bit is center-left
 		return set_cube_multi(img, hcross[0], hcross[1], xsz / 4);
 	}
-	if(xsz / 3 == ysz / 4) {
+	if((xsz << 8) / 3 == (ysz << 8) / 4) {
 		// vertical cross, assume the horizontal bit is center-top (180-rotated image 5)
 		return set_cube_multi(img, vcross[0], vcross[1], ysz / 4, (1 << 5));
 	}
-	if(xsz / 3 == ysz / 2) {
+	if((xsz << 8) / 3 == (ysz << 8) / 2) {
 		// horizontal sixpack
 		return set_cube_multi(img, hsix[0], hsix[1], ysz / 2);
 	}