765 lines
19 KiB
C
765 lines
19 KiB
C
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#include <SDL.h>
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#include "sys.h"
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#include "util.h"
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#define COPPER_BARS_H 80
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#define MAX_SPRITES 256
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static const int FADE_STEPS = 16;
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struct spritesheet_t {
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int count;
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SDL_Rect *r;
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SDL_Surface *surface;
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SDL_Texture *texture;
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};
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static struct spritesheet_t _spritesheets[RENDER_SPR_COUNT];
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struct sprite_t {
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int sheet;
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int num;
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int x, y;
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bool xflip;
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};
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static struct sprite_t _sprites[MAX_SPRITES];
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static int _sprites_count;
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static SDL_Rect _sprites_cliprect;
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static int _screen_w, _screen_h;
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static int _shake_dx, _shake_dy;
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static SDL_Window *_window;
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static SDL_Renderer *_renderer;
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static SDL_Texture *_texture;
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static SDL_PixelFormat *_fmt;
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static SDL_Palette *_palette;
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static uint32_t _screen_palette[256];
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static uint32_t *_screen_buffer;
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static int _copper_color_key;
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static uint32_t _copper_palette[COPPER_BARS_H];
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static SDL_GameController *_controller;
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static SDL_Joystick *_joystick;
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static void sdl2_init() {
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SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_JOYSTICK | SDL_INIT_GAMECONTROLLER);
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SDL_ShowCursor(SDL_DISABLE);
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_screen_w = _screen_h = 0;
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memset(_screen_palette, 0, sizeof(_screen_palette));
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_palette = SDL_AllocPalette(256);
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_screen_buffer = 0;
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_copper_color_key = -1;
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SDL_GameControllerAddMappingsFromFile("gamecontrollerdb.txt");
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_controller = 0;
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const int count = SDL_NumJoysticks();
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if (count > 0) {
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for (int i = 0; i < count; ++i) {
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if (SDL_IsGameController(i)) {
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_controller = SDL_GameControllerOpen(i);
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if (_controller) {
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fprintf(stdout, "Using controller '%s'\n", SDL_GameControllerName(_controller));
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break;
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}
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}
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}
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if (!_controller) {
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_joystick = SDL_JoystickOpen(0);
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if (_joystick) {
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fprintf(stdout, "Using joystick '%s'\n", SDL_JoystickName(_joystick));
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}
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}
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}
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}
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static void sdl2_fini() {
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if (_fmt) {
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SDL_FreeFormat(_fmt);
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_fmt = 0;
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}
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if (_palette) {
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SDL_FreePalette(_palette);
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_palette = 0;
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}
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if (_texture) {
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SDL_DestroyTexture(_texture);
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_texture = 0;
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}
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if (_renderer) {
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SDL_DestroyRenderer(_renderer);
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_renderer = 0;
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}
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if (_window) {
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SDL_DestroyWindow(_window);
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_window = 0;
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}
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free(_screen_buffer);
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if (_controller) {
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SDL_GameControllerClose(_controller);
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_controller = 0;
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}
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if (_joystick) {
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SDL_JoystickClose(_joystick);
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_joystick = 0;
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}
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SDL_Quit();
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}
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static void sdl2_set_screen_size(int w, int h, const char *caption, int scale, const char *filter, bool fullscreen) {
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assert(_screen_w == 0 && _screen_h == 0); // abort if called more than once
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_screen_w = w;
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_screen_h = h;
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if (!filter || strcmp(filter, "nearest") == 0) {
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SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "0");
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} else if (strcmp(filter, "linear") == 0) {
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SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "1");
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} else {
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print_warning("Unhandled filter '%s'", filter);
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}
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const int window_w = w * scale;
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const int window_h = h * scale;
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const int flags = fullscreen ? SDL_WINDOW_FULLSCREEN_DESKTOP : SDL_WINDOW_RESIZABLE;
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_window = SDL_CreateWindow(caption, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, window_w, window_h, flags);
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_renderer = SDL_CreateRenderer(_window, -1, 0);
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SDL_RenderSetLogicalSize(_renderer, w, h);
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print_debug(DBG_SYSTEM, "set_screen_size %d,%d", _screen_w, _screen_h);
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_screen_buffer = (uint32_t *)calloc(_screen_w * _screen_h, sizeof(uint32_t));
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if (!_screen_buffer) {
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print_error("Failed to allocate screen buffer");
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}
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static const uint32_t pfmt = SDL_PIXELFORMAT_RGB888;
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_texture = SDL_CreateTexture(_renderer, pfmt, SDL_TEXTUREACCESS_STREAMING, _screen_w, _screen_h);
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_fmt = SDL_AllocFormat(pfmt);
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_sprites_cliprect.x = 0;
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_sprites_cliprect.y = 0;
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_sprites_cliprect.w = w;
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_sprites_cliprect.h = h;
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}
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static uint32_t convert_amiga_color(uint16_t color) {
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uint8_t r = (color >> 8) & 15;
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r |= r << 4;
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uint8_t g = (color >> 4) & 15;
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g |= g << 4;
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uint8_t b = color & 15;
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b |= b << 4;
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return SDL_MapRGB(_fmt, r, g, b);
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}
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static void set_amiga_color(uint16_t color, SDL_Color *p) {
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const uint8_t r = (color >> 8) & 15;
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p->r = (r << 4) | r;
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const uint8_t g = (color >> 4) & 15;
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p->g = (g << 4) | g;
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const uint8_t b = color & 15;
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p->b = (b << 4) | b;
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}
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static void sdl2_set_palette_amiga(const uint16_t *colors, int offset) {
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SDL_Color *palette_colors = &_palette->colors[offset];
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for (int i = 0; i < 16; ++i) {
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_screen_palette[offset + i] = convert_amiga_color(colors[i]);
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set_amiga_color(colors[i], &palette_colors[i]);
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}
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}
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static void sdl2_set_copper_bars(const uint16_t *data) {
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if (!data) {
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_copper_color_key = -1;
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} else {
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_copper_color_key = (data[0] - 0x180) / 2;
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const uint16_t *src = data + 1;
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uint32_t *dst = _copper_palette;
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for (int i = 0; i < COPPER_BARS_H / 5; ++i) {
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const int j = i + 1;
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*dst++ = convert_amiga_color(src[j]);
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*dst++ = convert_amiga_color(src[i]);
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*dst++ = convert_amiga_color(src[j]);
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*dst++ = convert_amiga_color(src[i]);
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*dst++ = convert_amiga_color(src[j]);
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}
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}
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}
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static void sdl2_set_screen_palette(const uint8_t *colors, int offset, int count, int depth) {
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SDL_Color *palette_colors = &_palette->colors[offset];
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const int shift = 8 - depth;
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for (int i = 0; i < count; ++i) {
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int r = *colors++;
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int g = *colors++;
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int b = *colors++;
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if (depth != 8) {
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r = (r << shift) | (r >> (depth - shift));
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g = (g << shift) | (g >> (depth - shift));
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b = (b << shift) | (b >> (depth - shift));
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}
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_screen_palette[offset + i] = SDL_MapRGB(_fmt, r, g, b);
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palette_colors[i].r = r;
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palette_colors[i].g = g;
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palette_colors[i].b = b;
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}
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for (int i = 0; i < ARRAYSIZE(_spritesheets); ++i) {
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struct spritesheet_t *sheet = &_spritesheets[i];
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if (sheet->surface) {
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SDL_DestroyTexture(sheet->texture);
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sheet->texture = SDL_CreateTextureFromSurface(_renderer, sheet->surface);
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}
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}
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}
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static void sdl2_set_palette_color(int i, const uint8_t *colors) {
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int r = colors[0];
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r = (r << 2) | (r >> 4);
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int g = colors[1];
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g = (g << 2) | (g >> 4);
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int b = colors[2];
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b = (b << 2) | (b >> 4);
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_screen_palette[i] = SDL_MapRGB(_fmt, r, g, b);
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}
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static void fade_palette_helper(int in) {
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SDL_SetRenderDrawBlendMode(_renderer, SDL_BLENDMODE_BLEND);
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SDL_Rect r;
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r.x = r.y = 0;
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SDL_GetRendererOutputSize(_renderer, &r.w, &r.h);
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for (int i = 0; i <= FADE_STEPS; ++i) {
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int alpha = 255 * i / FADE_STEPS;
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if (in) {
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alpha = 255 - alpha;
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}
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SDL_SetRenderDrawColor(_renderer, 0, 0, 0, alpha);
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SDL_RenderClear(_renderer);
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SDL_RenderCopy(_renderer, _texture, 0, 0);
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SDL_RenderFillRect(_renderer, &r);
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SDL_RenderPresent(_renderer);
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SDL_Delay(30);
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}
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}
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static void sdl2_fade_in_palette() {
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if (!g_sys.input.quit) {
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fade_palette_helper(1);
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}
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}
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static void sdl2_fade_out_palette() {
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if (!g_sys.input.quit) {
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fade_palette_helper(0);
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}
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}
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static void sdl2_transition_screen(enum sys_transition_e type, bool open) {
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const int step_w = _screen_w / FADE_STEPS;
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const int step_h = _screen_h / FADE_STEPS;
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SDL_Rect r;
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r.x = 0;
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r.w = 0;
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r.y = 0;
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r.h = (type == TRANSITION_CURTAIN) ? _screen_h : 0;
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do {
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r.x = (_screen_w - r.w) / 2;
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if (r.x < 0) {
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r.x = 0;
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}
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r.w += step_w;
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if (r.x + r.w > _screen_w) {
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r.w = _screen_w - r.x;
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}
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if (type == TRANSITION_SQUARE) {
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r.y = (_screen_h - r.h) / 2;
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if (r.y < 0) {
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r.y = 0;
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}
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r.h += step_h;
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if (r.y + r.h > _screen_h) {
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r.h = _screen_h - r.y;
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}
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}
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SDL_RenderClear(_renderer);
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SDL_RenderCopy(_renderer, _texture, &r, &r);
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SDL_RenderPresent(_renderer);
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SDL_Delay(30);
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} while (r.x > 0 && (type == TRANSITION_CURTAIN || r.y > 0));
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}
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static void sdl2_copy_bitmap(const uint8_t *p, int w, int h) {
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if (w != _screen_w || h != _screen_h) {
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memset(_screen_buffer, 0, _screen_w * _screen_h * sizeof(uint32_t));
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const int offset_x = (_screen_w - w) / 2;
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const int offset_y = (_screen_h - h) / 2;
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for (int j = 0; j < h; ++j) {
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for (int i = 0; i < w; ++i) {
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_screen_buffer[(offset_y + j) * _screen_w + (offset_x + i)] = _screen_palette[*p++];
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}
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}
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} else if (_copper_color_key != -1) {
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for (int j = 0; j < _screen_h; ++j) {
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const int color = (j * 200 / _screen_h) / 2;
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if (color < COPPER_BARS_H) {
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const uint32_t line_color = _copper_palette[color];
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for (int i = 0; i < _screen_w; ++i) {
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_screen_buffer[j * _screen_w + i] = (p[i] == _copper_color_key) ? line_color : _screen_palette[p[i]];
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}
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} else {
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for (int i = 0; i < _screen_w; ++i) {
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_screen_buffer[j * _screen_w + i] = _screen_palette[p[i]];
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}
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}
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p += _screen_w;
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}
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} else {
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for (int i = 0; i < _screen_w * _screen_h; ++i) {
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_screen_buffer[i] = _screen_palette[p[i]];
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}
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}
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SDL_UpdateTexture(_texture, 0, _screen_buffer, _screen_w * sizeof(uint32_t));
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}
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static void sdl2_update_screen() {
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SDL_Rect r;
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r.x = _shake_dx;
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r.y = _shake_dy;
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r.w = _screen_w;
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r.h = _screen_h;
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SDL_RenderClear(_renderer);
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SDL_RenderCopy(_renderer, _texture, 0, &r);
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// sprites
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SDL_RenderSetClipRect(_renderer, &_sprites_cliprect);
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for (int i = 0; i < _sprites_count; ++i) {
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const struct sprite_t *spr = &_sprites[i];
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struct spritesheet_t *sheet = &_spritesheets[spr->sheet];
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if (spr->num >= sheet->count) {
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continue;
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}
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SDL_Rect r;
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r.x = spr->x + _shake_dx;
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r.y = spr->y + _shake_dy;
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r.w = sheet->r[spr->num].w;
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r.h = sheet->r[spr->num].h;
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if (!spr->xflip) {
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SDL_RenderCopy(_renderer, sheet->texture, &sheet->r[spr->num], &r);
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} else {
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SDL_RenderCopyEx(_renderer, sheet->texture, &sheet->r[spr->num], &r, 0., 0, SDL_FLIP_HORIZONTAL);
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}
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}
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SDL_RenderSetClipRect(_renderer, 0);
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SDL_RenderPresent(_renderer);
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}
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static void sdl2_shake_screen(int dx, int dy) {
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_shake_dx = dx;
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_shake_dy = dy;
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}
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static void handle_keyevent(int keysym, bool keydown, struct input_t *input, bool *paused) {
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switch (keysym) {
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case SDLK_LEFT:
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if (keydown) {
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input->direction |= INPUT_DIRECTION_LEFT;
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} else {
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input->direction &= ~INPUT_DIRECTION_LEFT;
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}
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break;
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case SDLK_RIGHT:
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if (keydown) {
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input->direction |= INPUT_DIRECTION_RIGHT;
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} else {
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input->direction &= ~INPUT_DIRECTION_RIGHT;
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}
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break;
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case SDLK_UP:
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if (keydown) {
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input->direction |= INPUT_DIRECTION_UP;
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} else {
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input->direction &= ~INPUT_DIRECTION_UP;
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}
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break;
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case SDLK_DOWN:
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if (keydown) {
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input->direction |= INPUT_DIRECTION_DOWN;
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} else {
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input->direction &= ~INPUT_DIRECTION_DOWN;
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}
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break;
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case SDLK_RETURN:
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case SDLK_SPACE:
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input->space = keydown;
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break;
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case SDLK_LSHIFT:
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case SDLK_RSHIFT:
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input->jump = keydown;
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break;
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case SDLK_ESCAPE:
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if (keydown) {
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g_sys.input.quit = true;
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}
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break;
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case SDLK_1:
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input->digit1 = keydown;
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break;
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case SDLK_2:
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input->digit2 = keydown;
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break;
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case SDLK_3:
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input->digit3 = keydown;
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break;
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case SDLK_p:
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if (!keydown) {
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*paused = !*paused;
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}
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break;
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}
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}
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static void handle_controlleraxis(int axis, int value, struct input_t *input) {
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static const int THRESHOLD = 3200;
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switch (axis) {
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case SDL_CONTROLLER_AXIS_LEFTX:
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case SDL_CONTROLLER_AXIS_RIGHTX:
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if (value < -THRESHOLD) {
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input->direction |= INPUT_DIRECTION_LEFT;
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} else {
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input->direction &= ~INPUT_DIRECTION_LEFT;
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}
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if (value > THRESHOLD) {
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input->direction |= INPUT_DIRECTION_RIGHT;
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} else {
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input->direction &= ~INPUT_DIRECTION_RIGHT;
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}
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break;
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case SDL_CONTROLLER_AXIS_LEFTY:
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case SDL_CONTROLLER_AXIS_RIGHTY:
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if (value < -THRESHOLD) {
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input->direction |= INPUT_DIRECTION_UP;
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} else {
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input->direction &= ~INPUT_DIRECTION_UP;
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}
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if (value > THRESHOLD) {
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input->direction |= INPUT_DIRECTION_DOWN;
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} else {
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input->direction &= ~INPUT_DIRECTION_DOWN;
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}
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break;
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}
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}
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static void handle_controllerbutton(int button, bool pressed, struct input_t *input, bool *paused) {
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switch (button) {
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case SDL_CONTROLLER_BUTTON_A:
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input->space = pressed;
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break;
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case SDL_CONTROLLER_BUTTON_B:
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input->jump = pressed;
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break;
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case SDL_CONTROLLER_BUTTON_START:
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if (!pressed) {
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*paused = !*paused;
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}
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break;
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case SDL_CONTROLLER_BUTTON_DPAD_UP:
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if (pressed) {
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input->direction |= INPUT_DIRECTION_UP;
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} else {
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input->direction &= ~INPUT_DIRECTION_UP;
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}
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break;
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case SDL_CONTROLLER_BUTTON_DPAD_DOWN:
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if (pressed) {
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input->direction |= INPUT_DIRECTION_DOWN;
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} else {
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input->direction &= ~INPUT_DIRECTION_DOWN;
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}
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break;
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case SDL_CONTROLLER_BUTTON_DPAD_LEFT:
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if (pressed) {
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input->direction |= INPUT_DIRECTION_LEFT;
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} else {
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input->direction &= ~INPUT_DIRECTION_LEFT;
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}
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break;
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case SDL_CONTROLLER_BUTTON_DPAD_RIGHT:
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if (pressed) {
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input->direction |= INPUT_DIRECTION_RIGHT;
|
|
} else {
|
|
input->direction &= ~INPUT_DIRECTION_RIGHT;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void handle_joystickhatmotion(int value, struct input_t *input) {
|
|
input->direction = 0;
|
|
if (value & SDL_HAT_UP) {
|
|
input->direction |= INPUT_DIRECTION_UP;
|
|
}
|
|
if (value & SDL_HAT_DOWN) {
|
|
input->direction |= INPUT_DIRECTION_DOWN;
|
|
}
|
|
if (value & SDL_HAT_LEFT) {
|
|
input->direction |= INPUT_DIRECTION_LEFT;
|
|
}
|
|
if (value & SDL_HAT_RIGHT) {
|
|
input->direction |= INPUT_DIRECTION_RIGHT;
|
|
}
|
|
}
|
|
|
|
static void handle_joystickaxismotion(int axis, int value, struct input_t *input) {
|
|
static const int THRESHOLD = 3200;
|
|
switch (axis) {
|
|
case 0:
|
|
input->direction &= ~(INPUT_DIRECTION_RIGHT | INPUT_DIRECTION_LEFT);
|
|
if (value > THRESHOLD) {
|
|
input->direction |= INPUT_DIRECTION_RIGHT;
|
|
} else if (value < -THRESHOLD) {
|
|
input->direction |= INPUT_DIRECTION_LEFT;
|
|
}
|
|
break;
|
|
case 1:
|
|
input->direction &= ~(INPUT_DIRECTION_UP | INPUT_DIRECTION_DOWN);
|
|
if (value > THRESHOLD) {
|
|
input->direction |= INPUT_DIRECTION_DOWN;
|
|
} else if (value < -THRESHOLD) {
|
|
input->direction |= INPUT_DIRECTION_UP;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void handle_joystickbutton(int button, int pressed, struct input_t *input) {
|
|
switch (button) {
|
|
case 0:
|
|
input->space = pressed;
|
|
break;
|
|
case 1:
|
|
input->jump = pressed;
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int handle_event(const SDL_Event *ev, bool *paused) {
|
|
switch (ev->type) {
|
|
case SDL_QUIT:
|
|
g_sys.input.quit = true;
|
|
break;
|
|
case SDL_WINDOWEVENT:
|
|
switch (ev->window.event) {
|
|
case SDL_WINDOWEVENT_FOCUS_GAINED:
|
|
case SDL_WINDOWEVENT_FOCUS_LOST:
|
|
*paused = (ev->window.event == SDL_WINDOWEVENT_FOCUS_LOST);
|
|
break;
|
|
}
|
|
break;
|
|
case SDL_KEYUP:
|
|
handle_keyevent(ev->key.keysym.sym, 0, &g_sys.input, paused);
|
|
break;
|
|
case SDL_KEYDOWN:
|
|
handle_keyevent(ev->key.keysym.sym, 1, &g_sys.input, paused);
|
|
break;
|
|
case SDL_CONTROLLERDEVICEADDED:
|
|
if (!_controller) {
|
|
_controller = SDL_GameControllerOpen(ev->cdevice.which);
|
|
if (_controller) {
|
|
fprintf(stdout, "Using controller '%s'\n", SDL_GameControllerName(_controller));
|
|
}
|
|
}
|
|
break;
|
|
case SDL_CONTROLLERDEVICEREMOVED:
|
|
if (_controller == SDL_GameControllerFromInstanceID(ev->cdevice.which)) {
|
|
fprintf(stdout, "Removed controller '%s'\n", SDL_GameControllerName(_controller));
|
|
SDL_GameControllerClose(_controller);
|
|
_controller = 0;
|
|
}
|
|
break;
|
|
case SDL_CONTROLLERBUTTONUP:
|
|
if (_controller) {
|
|
handle_controllerbutton(ev->cbutton.button, 0, &g_sys.input, paused);
|
|
}
|
|
break;
|
|
case SDL_CONTROLLERBUTTONDOWN:
|
|
if (_controller) {
|
|
handle_controllerbutton(ev->cbutton.button, 1, &g_sys.input, paused);
|
|
}
|
|
break;
|
|
case SDL_CONTROLLERAXISMOTION:
|
|
if (_controller) {
|
|
handle_controlleraxis(ev->caxis.axis, ev->caxis.value, &g_sys.input);
|
|
}
|
|
break;
|
|
case SDL_JOYHATMOTION:
|
|
if (_joystick) {
|
|
handle_joystickhatmotion(ev->jhat.value, &g_sys.input);
|
|
}
|
|
break;
|
|
case SDL_JOYAXISMOTION:
|
|
if (_joystick) {
|
|
handle_joystickaxismotion(ev->jaxis.axis, ev->jaxis.value, &g_sys.input);
|
|
}
|
|
break;
|
|
case SDL_JOYBUTTONUP:
|
|
if (_joystick) {
|
|
handle_joystickbutton(ev->jbutton.button, 0, &g_sys.input);
|
|
}
|
|
break;
|
|
case SDL_JOYBUTTONDOWN:
|
|
if (_joystick) {
|
|
handle_joystickbutton(ev->jbutton.button, 1, &g_sys.input);
|
|
}
|
|
break;
|
|
default:
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void sdl2_process_events() {
|
|
bool paused = false;
|
|
while (1) {
|
|
SDL_Event ev;
|
|
while (SDL_PollEvent(&ev)) {
|
|
const bool prev = paused;
|
|
handle_event(&ev, &paused);
|
|
if (g_sys.input.quit) {
|
|
break;
|
|
}
|
|
if (prev != paused) {
|
|
SDL_PauseAudio(paused);
|
|
}
|
|
}
|
|
if (!paused) {
|
|
break;
|
|
}
|
|
SDL_Delay(100);
|
|
}
|
|
}
|
|
|
|
static void sdl2_sleep(int duration) {
|
|
SDL_Delay(duration);
|
|
}
|
|
|
|
static uint32_t sdl2_get_timestamp() {
|
|
return SDL_GetTicks();
|
|
}
|
|
|
|
static void sdl2_start_audio(sys_audio_cb callback, void *param) {
|
|
SDL_AudioSpec desired;
|
|
memset(&desired, 0, sizeof(desired));
|
|
desired.freq = SYS_AUDIO_FREQ;
|
|
desired.format = AUDIO_S16;
|
|
desired.channels = 1;
|
|
desired.samples = 2048;
|
|
desired.callback = callback;
|
|
desired.userdata = param;
|
|
if (SDL_OpenAudio(&desired, 0) == 0) {
|
|
SDL_PauseAudio(0);
|
|
}
|
|
}
|
|
|
|
static void sdl2_stop_audio() {
|
|
SDL_CloseAudio();
|
|
}
|
|
|
|
static void sdl2_lock_audio() {
|
|
SDL_LockAudio();
|
|
}
|
|
|
|
static void sdl2_unlock_audio() {
|
|
SDL_UnlockAudio();
|
|
}
|
|
|
|
static void render_load_sprites(int spr_type, int count, const struct sys_rect_t *r, const uint8_t *data, int w, int h, uint8_t color_key, bool update_pal) {
|
|
assert(spr_type < ARRAYSIZE(_spritesheets));
|
|
struct spritesheet_t *sheet = &_spritesheets[spr_type];
|
|
sheet->count = count;
|
|
sheet->r = (SDL_Rect *)malloc(count * sizeof(SDL_Rect));
|
|
for (int i = 0; i < count; ++i) {
|
|
SDL_Rect *rect = &sheet->r[i];
|
|
rect->x = r[i].x;
|
|
rect->y = r[i].y;
|
|
rect->w = r[i].w;
|
|
rect->h = r[i].h;
|
|
}
|
|
SDL_Surface *surface = SDL_CreateRGBSurface(0, w, h, 8, 0x0, 0x0, 0x0, 0x0);
|
|
SDL_SetSurfacePalette(surface, _palette);
|
|
SDL_SetColorKey(surface, 1, color_key);
|
|
SDL_LockSurface(surface);
|
|
for (int y = 0; y < h; ++y) {
|
|
memcpy(((uint8_t *)surface->pixels) + y * surface->pitch, data + y * w, w);
|
|
}
|
|
SDL_UnlockSurface(surface);
|
|
sheet->texture = SDL_CreateTextureFromSurface(_renderer, surface);
|
|
if (update_pal) { /* update texture on palette change */
|
|
sheet->surface = surface;
|
|
} else {
|
|
SDL_FreeSurface(surface);
|
|
}
|
|
}
|
|
|
|
static void render_unload_sprites(int spr_type) {
|
|
struct spritesheet_t *sheet = &_spritesheets[spr_type];
|
|
free(sheet->r);
|
|
if (sheet->surface) {
|
|
SDL_FreeSurface(sheet->surface);
|
|
}
|
|
if (sheet->texture) {
|
|
SDL_DestroyTexture(sheet->texture);
|
|
}
|
|
memset(sheet, 0, sizeof(struct spritesheet_t));
|
|
}
|
|
|
|
static void render_add_sprite(int spr_type, int frame, int x, int y, int xflip) {
|
|
assert(_sprites_count < ARRAYSIZE(_sprites));
|
|
struct sprite_t *spr = &_sprites[_sprites_count];
|
|
spr->sheet = spr_type;
|
|
spr->num = frame;
|
|
spr->x = x;
|
|
spr->y = y;
|
|
spr->xflip = xflip;
|
|
++_sprites_count;
|
|
}
|
|
|
|
static void render_clear_sprites() {
|
|
_sprites_count = 0;
|
|
}
|
|
|
|
static void render_set_sprites_clipping_rect(int x, int y, int w, int h) {
|
|
_sprites_cliprect.x = x;
|
|
_sprites_cliprect.y = y;
|
|
_sprites_cliprect.w = w;
|
|
_sprites_cliprect.h = h;
|
|
}
|
|
|
|
static void print_log(FILE *fp, const char *s) {
|
|
}
|
|
|
|
struct sys_t g_sys = {
|
|
.init = sdl2_init,
|
|
.fini = sdl2_fini,
|
|
.set_screen_size = sdl2_set_screen_size,
|
|
.set_screen_palette = sdl2_set_screen_palette,
|
|
.set_palette_amiga = sdl2_set_palette_amiga,
|
|
.set_copper_bars = sdl2_set_copper_bars,
|
|
.set_palette_color = sdl2_set_palette_color,
|
|
.fade_in_palette = sdl2_fade_in_palette,
|
|
.fade_out_palette = sdl2_fade_out_palette,
|
|
.copy_bitmap = sdl2_copy_bitmap,
|
|
.update_screen = sdl2_update_screen,
|
|
.shake_screen = sdl2_shake_screen,
|
|
.transition_screen = sdl2_transition_screen,
|
|
.process_events = sdl2_process_events,
|
|
.sleep = sdl2_sleep,
|
|
.get_timestamp = sdl2_get_timestamp,
|
|
.start_audio = sdl2_start_audio,
|
|
.stop_audio = sdl2_stop_audio,
|
|
.lock_audio = sdl2_lock_audio,
|
|
.unlock_audio = sdl2_unlock_audio,
|
|
.render_load_sprites = render_load_sprites,
|
|
.render_unload_sprites = render_unload_sprites,
|
|
.render_add_sprite = render_add_sprite,
|
|
.render_clear_sprites = render_clear_sprites,
|
|
.render_set_sprites_clipping_rect = render_set_sprites_clipping_rect,
|
|
.print_log = print_log,
|
|
};
|