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OpenGL: Fix swizzle code again for alpha textures

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My prior code was incorrect;  I mixed up the two parameters, the
GL_TEXTURE_SWIZZLE_* parameter specifies the target channel, and the
value itself specifies the source channel.,  If that makes sense.
This commit is contained in:
jp9000 2014-04-15 12:19:20 -07:00
parent 51d338430f
commit 0bec267e40
1 changed files with 6 additions and 2 deletions
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8
libobs-opengl/gl-subsystem.c
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@ -322,8 +322,12 @@ static void strip_mipmap_filter(GLint *filter)
static inline void apply_swizzle(struct gs_texture *tex)
{
if (tex->format == GS_A8)
gl_tex_param_i(tex->gl_target, GL_TEXTURE_SWIZZLE_R, GL_ALPHA);
if (tex->format == GS_A8) {
gl_tex_param_i(tex->gl_target, GL_TEXTURE_SWIZZLE_R, GL_ONE);
gl_tex_param_i(tex->gl_target, GL_TEXTURE_SWIZZLE_G, GL_ONE);
gl_tex_param_i(tex->gl_target, GL_TEXTURE_SWIZZLE_B, GL_ONE);
gl_tex_param_i(tex->gl_target, GL_TEXTURE_SWIZZLE_A, GL_RED);
}
}
static bool load_texture_sampler(texture_t tex, samplerstate_t ss)