GLuint TextureController::_CreateBlankGLTexture(int32 width, int32 height) {
GLuint tex_id;
glGenTextures(1, &tex_id);
if (VideoManager->CheckGLError()) {
IF_PRINT_WARNING(VIDEO_DEBUG) << "an OpenGL error was detected: " << VideoManager->CreateGLErrorString() << endl;
_DeleteTexture(tex_id);
return INVALID_TEXTURE_ID;
}
_BindTexture(tex_id); // NOTE: this call makes another call to VideoManager->CheckGLError()
// If the binding was successful, initialize the texture with glTexImage2D()
if (VideoManager->GetGLError() == GL_NO_ERROR) {
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
}
if (VideoManager->CheckGLError()) {
PRINT_ERROR << "failed to create new texture. OpenGL reported the following error: " << VideoManager->CreateGLErrorString() << endl;
_DeleteTexture(tex_id);
return INVALID_TEXTURE_ID;
}
// Set linear texture interpolation only if we are at a non-natural resolution
GLenum filtering_type = VideoManager->_ShouldSmooth() ? GL_LINEAR : GL_NEAREST;
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filtering_type);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filtering_type);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
return tex_id;
}
GLuint TextureController::_CreateBlankGLTexture(int32_t width, int32_t height)
{
GLuint tex_id;
glGenTextures(1, &tex_id);
if(VideoManager->CheckGLError()) {
IF_PRINT_WARNING(VIDEO_DEBUG) << "an OpenGL error was detected: " << VideoManager->CreateGLErrorString() << std::endl;
_DeleteTexture(tex_id);
return INVALID_TEXTURE_ID;
}
_BindTexture(tex_id);
// If the binding was successful, initialize the texture with glTexImage2D()
if(VideoManager->GetGLError() == GL_NO_ERROR) {
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
}
if(VideoManager->CheckGLError()) {
PRINT_ERROR << "failed to create new texture. OpenGL reported the following error: " << VideoManager->CreateGLErrorString() << std::endl;
_DeleteTexture(tex_id);
return INVALID_TEXTURE_ID;
}
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
return tex_id;
}
