nesemu/gui/nametable_window.c

59 lines
1.8 KiB
C

//
// Created by william on 12/07/24.
//
#include "nametable_window.h"
#include "dbg_nametable.h"
#include "dbg_palette.h"
#define NW_WIDTH (NW_ROW_TILE_COUNT * PATTERN_DRAW_SIZE)
#define NW_HEIGHT (NW_ROW_COUNT * PATTERN_DRAW_SIZE)
#define NW_BUFFER_SIZE (NAMETABLE_ROW_WIDTH * NAMETABLE_COL_HEIGHT * PATTERN_DRAW_SIZE * PATTERN_DRAW_SIZE)
NametableWindow *nametable_window_create(int *window_id) {
NametableWindow *window = malloc(sizeof(NametableWindow));
window->window = window_create("Nametable", NW_WIDTH, NW_HEIGHT, NW_SCALE);
window->texture = window_create_texture(&window->window, SDL_TEXTUREACCESS_STREAMING);
dbg_nametable_init();
*window_id = window->window.id;
return window;
}
void nametable_window_destroy(NametableWindow *window) {
SDL_DestroyTexture(window->texture);
window_destroy(&window->window);
free(window);
}
void nametable_window_update_bank(NametableWindow *window, int bank, pixel *buffer) {
dbg_nametable_render_bank(bank, buffer);
SDL_Rect rect;
rect.w = NAMETABLE_ROW_WIDTH * PATTERN_DRAW_SIZE;
rect.h = NAMETABLE_COL_HEIGHT * PATTERN_DRAW_SIZE;
rect.x = (bank & 1) * rect.w;
rect.y = ((bank & 2) >> 1) * rect.h;
SDL_UpdateTexture(window->texture, &rect, buffer, (NW_WIDTH / 2) * sizeof(pixel));
}
void nametable_window_update(NametableWindow *window) {
dbg_palette_update();
dbg_nametable_update();
pixel buffer[NW_BUFFER_SIZE * 4] = {0};
nametable_window_update_bank(window, 0, buffer);
nametable_window_update_bank(window, 1, buffer);
nametable_window_update_bank(window, 2, buffer);
nametable_window_update_bank(window, 3, buffer);
}
void nametable_window_render(NametableWindow *window) {
window_render_texture(&window->window, window->texture);
window_present(&window->window);
}