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#include "client/pch.hh"
#include "client/resource/texture_gui.hh"
#include "core/resource/image.hh"
#include "core/resource/resource.hh"
static const void* texture_gui_load_func(const char* name, std::uint32_t flags)
{
assert(name);
unsigned int image_load_flags = 0U;
if(flags & TEXTURE_GUI_LOAD_VFLIP) {
image_load_flags |= IMAGE_LOAD_FLIP;
}
if(flags & TEXTURE_GUI_LOAD_GRAYSCALE) {
image_load_flags |= IMAGE_LOAD_GRAY;
}
if(auto image = resource::load<Image>(name, image_load_flags)) {
GLuint gl_texture;
glGenTextures(1, &gl_texture);
glBindTexture(GL_TEXTURE_2D, gl_texture);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, image->size.x, image->size.y, 0, GL_RGBA, GL_UNSIGNED_BYTE, image->pixels);
if(flags & TEXTURE_GUI_LOAD_CLAMP_S) {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
}
else {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
}
if(flags & TEXTURE_GUI_LOAD_CLAMP_T) {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
}
else {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
}
if(flags & TEXTURE_GUI_LOAD_LINEAR_MAG) {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
}
else {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
}
if(flags & TEXTURE_GUI_LOAD_LINEAR_MIN) {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
}
else {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
}
auto new_resource = new TextureGUI();
new_resource->handle = static_cast<ImTextureID>(gl_texture);
new_resource->size.x = image->size.x;
new_resource->size.y = image->size.y;
return new_resource;
}
return nullptr;
}
static void texture_gui_free_func(const void* resource)
{
assert(resource);
auto texture_gui = reinterpret_cast<const TextureGUI*>(resource);
auto gl_texture = static_cast<GLuint>(texture_gui->handle);
glDeleteTextures(1, &gl_texture);
delete texture_gui;
}
void TextureGUI::register_resource(void)
{
resource::register_loader<TextureGUI>(&texture_gui_load_func, &texture_gui_free_func);
}
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