surface.c

#include <kiba/gpu/surface.h>
 
b8 gpu_surface_create(gpu_surface surface, void *window_data) {
    return gpu_backend_surface_create(&surface->bs, window_data);
}
 
void gpu_surface_destroy(gpu_surface surface) { gpu_backend_surface_destroy(&surface->bs); }
 
b8 gpu_surface_configure(gpu_surface surface, gpu_device device, struct gpu_surface_configuration config) {
    surface->device = device;
    surface->config = config;
    return gpu_backend_surface_configure(&surface->bs, &device->bd, config);
}
 
void gpu_surface_unconfigure(gpu_surface surface) {
    gpu_backend_surface_unconfigure(&surface->bs, &surface->device->bd);
}
 
b8 gpu_surface_get_current_texture(gpu_surface surface, gpu_texture *texture, b8 *suboptimal) {
    // TODO this leaks when called twice without a present call in between
    if (!gpu_device_resource_texture_create(surface->device, texture)) {
        return false;
    }
    struct gpu_texture *texture_data = *texture;
    texture_data->desc = (struct gpu_texture_descriptor){
        .format    = surface->config.format,
        .dimension = GPU_TEXTURE_DIMENSION_D2,
        .size      = {.width = surface->config.width, .height = surface->config.height, .depth = 1},
        .usage = GPU_TEXTURE_USAGE_RENDER_ATTACHMENT, // NOTE this is the only valid one so its not part of the config
        .mip_level_count = 1,
        .sample_count    = 1,
    };
    // start is used here as the final destination state
    texture_data->device->textures[texture_data->tracker_id].start_use = GPU_TEXTURE_USE_PRESENT;
    surface->presentation = *texture;
    return gpu_backend_surface_get_current_texture(&surface->bs, &surface->device->bd, &texture_data->bt, suboptimal);
}
 
b8 gpu_surface_present(gpu_surface surface, b8 *suboptimal) {
    b8 ret = gpu_backend_surface_present(&surface->bs, &surface->device->bd, &surface->presentation->bt, suboptimal);
    gpu_device_resource_texture_release(surface->presentation);
    return ret;
}