TTF_RenderText_Blended setting only blue channel with GL

SDL Development
1

I’m calling TTF_RenderText_Blended and loading the result into a GL texture. This is resulting in only the blue/alpha channel being set, like the color has been ignored.

SDL_Color c = {255,255,255,255};
sdl_tex = TTF_RenderText_Blended( font, text, c );

Then copy to texture:

glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, sdl_tex.w, sdl_tex.h, 
  0, GL_RGBA, GL_UNSIGNED_BYTE, sdl_tex.pixels);

I’m using this small fragment shader to test:

#version 130
out vec4 LFragment; 
in highp vec2 texCoord;

uniform sampler2D tex;

void main() { 
	vec4 r =  texture2D(tex, texCoord);
	LFragment = vec4(r.xyz*r.w,r.w);
}

I get the correct text shape, but only the blue channel appears set. It appears that the SDL_Color really isn’t being used at all. I can specify whatever values I want for g,b,a and it always has the same result. Only changing the r value changes the intensity of the result.

The same loading/drawing approach works when loading images with SDL_image, so I’m assuming it’s something particular about SDF_ttf.

Note my code is written in Leaf, not C, just converted the key points for clarity.

2

I think I found the problem. I somehow have the calling convention on the SDL_Color parameter screwed up.I’ve tried mapping it to a plain integer instead and am seeing colors appear.

Sorry, my fault.