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shrooms-vb-native
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Rearrange everything so the GUI is in the main loop

This commit is contained in:
Simon Gellis 2024-10-29 21:53:17 -04:00
parent 511ad086cd
commit 0fb8d8e59f
12 changed files with 442 additions and 317 deletions
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4
audio.c
View File

@ -37,6 +37,10 @@ int audioInit(AudioContext *aud) {
return 0;
}
void audioDestroy(AudioContext *aud) {
SDL_CloseAudioDevice(aud->id);
}
int audioUpdate(AudioContext *aud, void *data, uint32_t bytes) {
int filled;
if (!aud->id) return -1;

1
audio.h
View File

@ -13,6 +13,7 @@ typedef struct {
} AudioContext;
int audioInit(AudioContext *aud);
void audioDestroy(AudioContext *aud);
int audioUpdate(AudioContext *aud, void *data, uint32_t bytes);
#endif

61
emulation.c Normal file
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@ -0,0 +1,61 @@
#include "emulation.h"
#include <stdlib.h>
static int onFrame(VB *sim) {
SimContext *ctx = vbGetUserData(sim);
ctx->hasFrame = true;
return 1;
}
int emuInit(EmulationContext *emu) {
emu->sim = malloc(vbSizeOf());
vbInit(emu->sim);
emu->ctx = malloc(sizeof(SimContext));
vbSetUserData(emu->sim, emu->ctx);
vbSetFrameCallback(emu->sim, &onFrame);
return 0;
}
void emuDestroy(EmulationContext *emu) {
uint8_t *rom = vbGetCartROM(emu->sim, NULL);
SimContext *ctx = vbGetUserData(emu->sim);
if (rom) free(rom);
if (ctx) free(ctx);
free(emu->sim);
}
void emuLoadGame(EmulationContext *emu, uint8_t *rom, uint32_t romSize) {
vbSetCartROM(emu->sim, rom, romSize);
}
#define MAX_STEP_CLOCKS 20000000
void emuTick(EmulationContext *emu) {
uint32_t clocks = MAX_STEP_CLOCKS;
vbEmulate(emu->sim, &clocks);
}
bool emuReadPixels(EmulationContext *emu, uint8_t *left, uint8_t *right) {
if (!emu->ctx->hasFrame) {
return false;
}
emu->ctx->hasFrame = false;
vbGetPixels(emu->sim, left, 1, 384, right, 1, 384);
return true;
}
void emuReadSamples(EmulationContext *emu, void **data, uint32_t *bytes) {
uint32_t samplePairs;
*data = vbGetSamples(emu->sim, NULL, &samplePairs);
*bytes = samplePairs * 4;
emu->ctx->currentSample += 1;
emu->ctx->currentSample %= 2;
vbSetSamples(emu->sim, emu->ctx->samples[emu->ctx->currentSample], 834);
}
void emuSetKeys(EmulationContext *emu, uint16_t keys) {
vbSetKeys(emu->sim, keys);
}

28
emulation.h Normal file
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@ -0,0 +1,28 @@
#ifndef SHROOMS_VB_NATIVE_EMULATION_
#define SHROOMS_VB_NATIVE_EMULATION_
#include "shrooms-vb-core/core/vb.h"
#include <stdbool.h>
#include <stdint.h>
typedef struct SimContext {
bool hasFrame;
uint32_t samples[2][834];
uint32_t currentSample;
} SimContext;
typedef struct EmulationContext {
VB *sim;
SimContext *ctx;
} EmulationContext;
int emuInit(EmulationContext *emu);
void emuDestroy(EmulationContext *emu);
void emuLoadGame(EmulationContext *emu, uint8_t *rom, uint32_t romSize);
void emuTick(EmulationContext *emu);
bool emuReadPixels(EmulationContext *emu, uint8_t *left, uint8_t *right);
void emuReadSamples(EmulationContext *emu, void **data, uint32_t *bytes);
void emuSetKeys(EmulationContext *emu, uint16_t keys);
#endif

72
game.c
View File

@ -1,72 +0,0 @@
#include <audio.h>
#include <assets.h>
#include <controller.h>
#include <game.h>
#include <SDL2/SDL.h>
#include <stdbool.h>
#include <time.h>
typedef struct {
GraphicsContext *gfx;
AudioContext aud;
int16_t audioBuffer[834 * 2];
} GameState;
int onFrame(VB *sim) {
static uint8_t leftEye[384*224];
static uint8_t rightEye[384*224];
GameState *state;
void *samples;
uint32_t samplePairs;
state = vbGetUserData(sim);
vbGetPixels(sim, leftEye, 1, 384, rightEye, 1, 384);
gfxUpdateEyes(state->gfx, leftEye, rightEye);
samples = vbGetSamples(sim, NULL, &samplePairs);
audioUpdate(&state->aud, samples, samplePairs * 4);
vbSetSamples(sim, samples, 834);
gfxRender(state->gfx);
return 1;
}
#define MAX_STEP_CLOCKS 20000000
int runGame(VB *sim, GraphicsContext *gfx) {
uint32_t clocks;
SDL_Event event;
GameState state;
ControllerState ctrl;
state.gfx = gfx;
audioInit(&state.aud);
vbSetSamples(sim, &state.audioBuffer, 834);
vbSetUserData(sim, &state);
vbSetFrameCallback(sim, &onFrame);
ctrlInit(&ctrl);
gfxUpdateEyes(gfx, LEFT_EYE_DEFAULT, RIGHT_EYE_DEFAULT);
while (1) {
clocks = MAX_STEP_CLOCKS;
vbEmulate(sim, &clocks);
gfxMenuInputBegin(gfx);
while (SDL_PollEvent(&event)) {
if (event.type == SDL_QUIT) {
return 0;
}
if (event.type == SDL_KEYDOWN) {
ctrlKeyDown(&ctrl, event.key.keysym.sym);
}
if (event.type == SDL_KEYUP) {
ctrlKeyUp(&ctrl, event.key.keysym.sym);
}
gfxMenuHandleEvent(gfx, &event);
}
gfxMenuInputEnd(gfx);
vbSetKeys(sim, ctrlKeys(&ctrl));
}
}

9
game.h
View File

@ -1,9 +0,0 @@
#ifndef SHROOMS_VB_NATIVE_GAME_
#define SHROOMS_VB_NATIVE_GAME_
#include "graphics.h"
#include "shrooms-vb-core/core/vb.h"
int runGame(VB *sim, GraphicsContext *gfx);
#endif

27
graphics.h
View File

@ -1,27 +0,0 @@
#ifndef SHROOMS_VB_NATIVE_GRAPHICS_
#define SHROOMS_VB_NATIVE_GRAPHICS_
#include <SDL2/SDL.h>
#include <nuklear.h>
typedef struct {
SDL_Window *window;
SDL_Renderer *renderer;
SDL_Texture *leftEye;
SDL_Texture *rightEye;
struct nk_context *nk;
struct nk_font *font;
} GraphicsContext;
int gfxInit(GraphicsContext *gfx);
void gfxDestroy(GraphicsContext *gfx);
void gfxUpdateEyes(GraphicsContext *gfx, const uint8_t *left, const uint8_t *right);
void gfxMenuInputBegin(GraphicsContext *gfx);
void gfxMenuHandleEvent(GraphicsContext *gfx, SDL_Event *event);
void gfxMenuInputEnd(GraphicsContext *gfx);
void gfxRender(GraphicsContext *gfx);
#endif

73
main.c
View File

@ -1,86 +1,35 @@
#include <cli.h>
#include <game.h>
#include <graphics.h>
#include "cli.h"
#include <SDL2/SDL.h>
#include "shrooms-vb-core/core/vb.h"
#include <stdio.h>
uint8_t *readROM(char *filename, uint32_t *size) {
FILE *file = fopen(filename, "rb");
uint8_t *rom;
long filesize;
if (!file) {
perror("could not open file");
return NULL;
}
if (fseek(file, 0, SEEK_END)) {
perror("could not seek file end");
return NULL;
}
filesize = ftell(file);
if (filesize == -1) {
perror("could not read file size");
return NULL;
}
if (fseek(file, 0, SEEK_SET)) {
perror("could not seek file start");
return NULL;
}
*size = (uint32_t) filesize;
rom = malloc(*size);
if (!rom) {
perror("could not allocate ROM");
return NULL;
}
fread(rom, 1, *size, file);
if (ferror(file)) {
perror("could not read file");
return NULL;
}
if (fclose(file)) {
perror("could not close file");
return NULL;
}
return rom;
}
#include "ui.h"
int main(int argc, char **argv) {
VB *sim;
uint8_t *rom;
uint32_t romSize;
GraphicsContext gfx;
CLIArgs args;
UIContext *ui;
int status;
if (parseCLIArgs(argc, argv, &args)) {
return 1;
}
rom = readROM(args.filename, &romSize);
if (!rom) {
return 1;
}
sim = malloc(vbSizeOf());
vbInit(sim);
vbSetCartROM(sim, rom, romSize);
SDL_SetHint(SDL_HINT_VIDEO_HIGHDPI_DISABLED, "0");
if (SDL_Init(SDL_INIT_EVERYTHING)) {
fprintf(stderr, "Error initializing SDL: %s\n", SDL_GetError());
return 1;
}
if (gfxInit(&gfx)) {
ui = uiInit();
if (!ui) {
SDL_Quit();
return 1;
}
status = runGame(sim, &gfx);
if (args.filename) {
uiLoadGame(ui, args.filename);
}
status = uiRun(ui);
uiDestroy(ui);
SDL_Quit();
return status;
}

169
ui.c Normal file
View File

@ -0,0 +1,169 @@
#include "audio.h"
#include "controller.h"
#include "emulation.h"
#include <stdio.h>
#include <stdlib.h>
#include "ui.h"
#include "window.h"
struct UIContext {
EmulationContext emu;
WindowContext win;
AudioContext aud;
ControllerState ctrl;
};
UIContext *uiInit() {
UIContext *ui = malloc(sizeof(UIContext));
if (emuInit(&ui->emu)) {
goto destroy_ui;
}
if (windowInit(&ui->win, "Shrooms VB")) {
goto destroy_emu;
}
if (audioInit(&ui->aud)) {
goto destroy_window;
}
ctrlInit(&ui->ctrl);
return ui;
destroy_window:
windowDestroy(&ui->win);
destroy_emu:
emuDestroy(&ui->emu);
destroy_ui:
free(ui);
return NULL;
}
void uiDestroy(UIContext *ui) {
audioDestroy(&ui->aud);
windowDestroy(&ui->win);
emuDestroy(&ui->emu);
free(ui);
}
int uiLoadGame(UIContext *ui, const char *path) {
FILE *file = fopen(path, "rb");
uint8_t *rom;
long fileSize;
uint32_t romSize;
if (!file) {
perror("could not open file");
return -1;
}
if (fseek(file, 0, SEEK_END)) {
perror("could not seek file end");
return -1;
}
fileSize = ftell(file);
if (fileSize == -1) {
perror("could not read file size");
return -1;
}
if (fseek(file, 0, SEEK_SET)) {
perror("could not seek file start");
return -1;
}
romSize = (uint32_t) fileSize;
rom = malloc(romSize);
if (!rom) {
perror("could not allocate ROM");
return -1;
}
fread(rom, 1, romSize, file);
if (ferror(file)) {
perror("could not read file");
return -1;
}
if (fclose(file)) {
perror("could not close file");
return -1;
}
emuLoadGame(&ui->emu, rom, romSize);
return 0;
}
static const char *MENU_ITEMS[3] = {
"File",
"Emulation",
NULL
};
int uiRun(UIContext *ui) {
static uint8_t leftEye[384*224];
static uint8_t rightEye[384*224];
while (1) {
struct nk_context *ctx;
SDL_Event event;
void *samples;
uint32_t bytes;
ctx = ui->win.nk;
emuTick(&ui->emu);
if (emuReadPixels(&ui->emu, leftEye, rightEye)) {
windowUpdate(&ui->win, leftEye, rightEye);
}
emuReadSamples(&ui->emu, &samples, &bytes);
if (bytes) {
audioUpdate(&ui->aud, samples, bytes);
}
windowDisplayBegin(&ui->win);
/* GUI */
if (windowGuiBegin(&ui->win, "Shrooms VB")) {
windowMenubarBegin(&ui->win, MENU_ITEMS);
if (nk_menu_begin_label(ctx, "File", NK_TEXT_ALIGN_CENTERED, nk_vec2(120, windowGetScreenHeight(&ui->win)))) {
nk_layout_row_dynamic(ctx, MENU_HEIGHT + 2, 1);
if (nk_menu_item_label(ctx, "Open ROM", NK_TEXT_ALIGN_LEFT)) {
printf("Open ROM\n");
}
if (nk_menu_item_label(ctx, "Quit", NK_TEXT_ALIGN_LEFT)) {
SDL_Event QuitEvent;
QuitEvent.type = SDL_QUIT;
QuitEvent.quit.timestamp = SDL_GetTicks();
SDL_PushEvent(&QuitEvent);
}
nk_menu_end(ctx);
}
if (nk_menu_begin_label(ctx, "Emulation", NK_TEXT_ALIGN_CENTERED, nk_vec2(120, windowGetScreenHeight(&ui->win)))) {
nk_layout_row_dynamic(ctx, MENU_HEIGHT + 2, 1);
if (nk_menu_item_label(ctx, "Pause", NK_TEXT_ALIGN_LEFT)) {
printf("Pause\n");
}
if (nk_menu_item_label(ctx, "Reset", NK_TEXT_ALIGN_LEFT)) {
printf("Reset\n");
}
nk_menu_end(ctx);
}
windowMenubarEnd(&ui->win);
}
windowGuiEnd(&ui->win);
windowDisplayEnd(&ui->win);
nk_input_begin(ctx);
while (SDL_PollEvent(&event)) {
nk_sdl_handle_event(&event);
if (event.type == SDL_QUIT) {
return 0;
}
if (event.type == SDL_KEYDOWN) {
ctrlKeyDown(&ui->ctrl, event.key.keysym.sym);
}
if (event.type == SDL_KEYUP) {
ctrlKeyUp(&ui->ctrl, event.key.keysym.sym);
}
}
nk_input_end(ctx);
emuSetKeys(&ui->emu, ctrlKeys(&ui->ctrl));
}
}

11
ui.h Normal file
View File

@ -0,0 +1,11 @@
#ifndef SHROOMS_VB_NATIVE_UI_
#define SHROOMS_VB_NATIVE_UI_
typedef struct UIContext UIContext;
UIContext *uiInit();
void uiDestroy(UIContext *ui);
int uiLoadGame(UIContext *ui, const char *path);
int uiRun(UIContext *ui);
#endif

268
graphics.c → window.c
View File

@ -1,9 +1,8 @@
#include <graphics.h>
#include <stdio.h>
#include "nuklear.h"
#include "window.h"
#define SCREEN_WIDTH 384
#define SCREEN_HEIGHT 224
#define MENU_HEIGHT 20
#define WINDOW_WIDTH SCREEN_WIDTH
#define WINDOW_HEIGHT (SCREEN_HEIGHT + MENU_HEIGHT)
@ -57,6 +56,86 @@ static void applyStyles(struct nk_context *ctx) {
ctx->style.contextual_button.padding = nk_vec2(20, 4);
}
int windowInit(WindowContext *win, const char *title) {
float fontScale;
win->window = SDL_CreateWindow(title,
SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED,
WINDOW_WIDTH, WINDOW_HEIGHT, SDL_WINDOW_SHOWN | SDL_WINDOW_ALLOW_HIGHDPI);
if (!win->window) {
fprintf(stderr, "Error creating window: %s\n", SDL_GetError());
return -1;
}
win->renderer = SDL_CreateRenderer(win->window, -1, 0);
if (!win->renderer) {
fprintf(stderr, "Error creating renderer: %s\n", SDL_GetError());
goto cleanup_window;
}
win->leftEye = SDL_CreateTexture(win->renderer, SDL_PIXELFORMAT_RGB24, SDL_TEXTUREACCESS_STREAMING, 384, 224);
if (!win->leftEye) {
fprintf(stderr, "Error creating left eye texture: %s\n", SDL_GetError());
goto cleanup_renderer;
}
SDL_SetTextureColorMod(win->leftEye, 0xff, 0, 0);
win->rightEye = SDL_CreateTexture(win->renderer, SDL_PIXELFORMAT_RGB24, SDL_TEXTUREACCESS_STREAMING, 384, 224);
if (!win->rightEye) {
fprintf(stderr, "Error creating right eye texture: %s\n", SDL_GetError());
goto cleanup_left_eye;
}
SDL_SetTextureColorMod(win->rightEye, 0, 0xc6, 0xf0);
SDL_SetTextureBlendMode(win->rightEye, SDL_BLENDMODE_ADD);
/* scale the renderer output for High-DPI displays */
{
int renderW, renderH;
int windowW, windowH;
float scaleX, scaleY;
SDL_GetRendererOutputSize(win->renderer, &renderW, &renderH);
SDL_GetWindowSize(win->window, &windowW, &windowH);
scaleX = (float)(renderW) / (float)(windowW);
scaleY = (float)(renderH) / (float)(windowH);
SDL_RenderSetScale(win->renderer, scaleX, scaleY);
fontScale = scaleY;
}
win->nk = nk_sdl_init(win->window, win->renderer);
applyStyles(win->nk);
/* tell nuklear the mouse moved somewhere so it doesn't think we're hovering in the top left */
nk_input_motion(win->nk, 1024, 1024);
{
struct nk_font_atlas *atlas;
struct nk_font_config config = nk_font_config(0);
nk_sdl_font_stash_begin(&atlas);
win->font = nk_font_atlas_add_default(atlas, 13 * fontScale, &config);
nk_sdl_font_stash_end();
win->font->handle.height /= fontScale;
nk_style_set_font(win->nk, &win->font->handle);
}
return 0;
cleanup_left_eye:
SDL_DestroyTexture(win->leftEye);
cleanup_renderer:
SDL_DestroyRenderer(win->renderer);
cleanup_window:
SDL_DestroyWindow(win->window);
return -1;
}
void windowDestroy(WindowContext *win) {
SDL_DestroyTexture(win->rightEye);
SDL_DestroyTexture(win->leftEye);
SDL_DestroyRenderer(win->renderer);
SDL_DestroyWindow(win->window);
}
static void copyScreenTexture(uint8_t *dst, const uint8_t *src, int pitch) {
int x, y, i;
uint8_t color;
@ -71,83 +150,7 @@ static void copyScreenTexture(uint8_t *dst, const uint8_t *src, int pitch) {
}
}
int gfxInit(GraphicsContext *gfx) {
float fontScale = 1;
gfx->window = SDL_CreateWindow("Shrooms VB",
SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED,
WINDOW_WIDTH, WINDOW_HEIGHT, SDL_WINDOW_SHOWN | SDL_WINDOW_ALLOW_HIGHDPI);
if (!gfx->window) {
fprintf(stderr, "Error creating window: %s\n", SDL_GetError());
return 1;
}
gfx->renderer = SDL_CreateRenderer(gfx->window, -1, 0);
if (!gfx->renderer) {
fprintf(stderr, "Error creating renderer: %s\n", SDL_GetError());
goto cleanup_window;
}
/* scale the renderer output for High-DPI displays */
{
int renderW, renderH;
int windowW, windowH;
float scaleX, scaleY;
SDL_GetRendererOutputSize(gfx->renderer, &renderW, &renderH);
SDL_GetWindowSize(gfx->window, &windowW, &windowH);
scaleX = (float)(renderW) / (float)(windowW);
scaleY = (float)(renderH) / (float)(windowH);
SDL_RenderSetScale(gfx->renderer, scaleX, scaleY);
}
gfx->nk = nk_sdl_init(gfx->window, gfx->renderer);
applyStyles(gfx->nk);
/* tell nuklear the mouse moved somewhere so it doesn't think we're hovering in the top left */
nk_input_motion(gfx->nk, 1024, 1024);
{
struct nk_font_atlas *atlas;
struct nk_font_config config = nk_font_config(0);
nk_sdl_font_stash_begin(&atlas);
gfx->font = nk_font_atlas_add_default(atlas, 13 * fontScale, &config);
nk_sdl_font_stash_end();
gfx->font->handle.height /= fontScale;
nk_style_set_font(gfx->nk, &gfx->font->handle);
}
gfx->leftEye = SDL_CreateTexture(gfx->renderer, SDL_PIXELFORMAT_RGB24, SDL_TEXTUREACCESS_STREAMING, 384, 224);
if (!gfx->leftEye) {
fprintf(stderr, "Error creating left eye texture: %s\n", SDL_GetError());
goto cleanup_window;
}
SDL_SetTextureColorMod(gfx->leftEye, 0xff, 0, 0);
gfx->rightEye = SDL_CreateTexture(gfx->renderer, SDL_PIXELFORMAT_RGB24, SDL_TEXTUREACCESS_STREAMING, 384, 224);
if (!gfx->rightEye) {
fprintf(stderr, "Error creating left eye texture: %s\n", SDL_GetError());
goto cleanup_left_eye;
}
SDL_SetTextureColorMod(gfx->rightEye, 0, 0xc6, 0xf0);
SDL_SetTextureBlendMode(gfx->rightEye, SDL_BLENDMODE_ADD);
return 0;
cleanup_left_eye:
SDL_DestroyTexture(gfx->leftEye);
cleanup_window:
SDL_DestroyWindow(gfx->window);
return 1;
}
void gfxDestroy(GraphicsContext *gfx) {
SDL_DestroyTexture(gfx->rightEye);
SDL_DestroyTexture(gfx->leftEye);
SDL_DestroyWindow(gfx->window);
}
static void gfxUpdateEye(SDL_Texture *eye, const uint8_t *bytes) {
static void updateEye(SDL_Texture *eye, const uint8_t *bytes) {
void *target;
int pitch;
if (SDL_LockTexture(eye, NULL, &target, &pitch)) {
@ -158,82 +161,57 @@ static void gfxUpdateEye(SDL_Texture *eye, const uint8_t *bytes) {
SDL_UnlockTexture(eye);
}
void gfxUpdateEyes(GraphicsContext *gfx, const uint8_t *left, const uint8_t *right) {
gfxUpdateEye(gfx->leftEye, left);
gfxUpdateEye(gfx->rightEye, right);
void windowUpdate(WindowContext *win, const uint8_t *left, const uint8_t *right) {
updateEye(win->leftEye, left);
updateEye(win->rightEye, right);
}
void gfxMenuInputBegin(GraphicsContext *gfx) {
nk_input_begin(gfx->nk);
int windowGetScreenHeight(WindowContext *win) {
(void) win;
return SCREEN_HEIGHT;
}
void gfxMenuHandleEvent(GraphicsContext *gfx, SDL_Event *event) {
(void) gfx;
nk_sdl_handle_event(event);
}
void gfxMenuInputEnd(GraphicsContext *gfx) {
nk_sdl_handle_grab();
nk_input_end(gfx->nk);
}
static void pushMenubarSpace(GraphicsContext *gfx, const char *text) {
struct nk_user_font *handle;
int len;
float width;
handle = &gfx->font->handle;
len = nk_strlen(text);
width = handle->width(handle->userdata, handle->height, text, len) + 16;
nk_layout_row_template_push_static(gfx->nk, width);
}
void gfxRender(GraphicsContext *gfx) {
void windowDisplayBegin(WindowContext *win) {
SDL_Rect dst;
dst.x = 0;
dst.y = MENU_HEIGHT;
dst.w = SCREEN_WIDTH;
dst.h = SCREEN_HEIGHT;
SDL_RenderClear(gfx->renderer);
SDL_RenderCopy(gfx->renderer, gfx->leftEye, NULL, &dst);
SDL_RenderCopy(gfx->renderer, gfx->rightEye, NULL, &dst);
/* GUI */
if (nk_begin(gfx->nk, "Game", nk_rect(0, 0, SCREEN_WIDTH, MENU_HEIGHT), NK_WINDOW_NO_SCROLLBAR | NK_WINDOW_BACKGROUND)) {
nk_menubar_begin(gfx->nk);
nk_layout_row_template_begin(gfx->nk, 20);
pushMenubarSpace(gfx, "File");
pushMenubarSpace(gfx, "Emulation");
nk_layout_row_template_end(gfx->nk);
if (nk_menu_begin_label(gfx->nk, "File", NK_TEXT_ALIGN_CENTERED, nk_vec2(120, WINDOW_HEIGHT))) {
nk_layout_row_dynamic(gfx->nk, 22, 1);
if (nk_menu_item_label(gfx->nk, "Open ROM", NK_TEXT_ALIGN_LEFT)) {
printf("Open ROM\n");
}
if (nk_menu_item_label(gfx->nk, "Quit", NK_TEXT_ALIGN_LEFT)) {
SDL_Event QuitEvent;
QuitEvent.type = SDL_QUIT;
QuitEvent.quit.timestamp = SDL_GetTicks();
SDL_PushEvent(&QuitEvent);
}
nk_menu_end(gfx->nk);
}
if (nk_menu_begin_label(gfx->nk, "Emulation", NK_TEXT_ALIGN_CENTERED, nk_vec2(120, WINDOW_HEIGHT))) {
nk_layout_row_dynamic(gfx->nk, 22, 1);
if (nk_menu_item_label(gfx->nk, "Pause", NK_TEXT_ALIGN_LEFT)) {
printf("Pause\n");
}
if (nk_menu_item_label(gfx->nk, "Reset", NK_TEXT_ALIGN_LEFT)) {
printf("Reset\n");
}
nk_menu_end(gfx->nk);
}
nk_menubar_end(gfx->nk);
}
nk_end(gfx->nk);
SDL_RenderClear(win->renderer);
SDL_RenderCopy(win->renderer, win->leftEye, NULL, &dst);
SDL_RenderCopy(win->renderer, win->rightEye, NULL, &dst);
}
void windowDisplayEnd(WindowContext *win) {
nk_sdl_render(NK_ANTI_ALIASING_ON);
SDL_RenderPresent(gfx->renderer);
SDL_RenderPresent(win->renderer);
}
bool windowGuiBegin(WindowContext *win, const char *title) {
return nk_begin(win->nk, title, nk_rect(0, 0, SCREEN_WIDTH, MENU_HEIGHT), NK_WINDOW_NO_SCROLLBAR | NK_WINDOW_BACKGROUND);
}
void windowGuiEnd(WindowContext *win) {
nk_end(win->nk);
}
void windowMenubarBegin(WindowContext *win, const char **items) {
const char **item;
nk_menubar_begin(win->nk);
nk_layout_row_template_begin(win->nk, MENU_HEIGHT);
for (item = items; *item != NULL; item++) {
struct nk_user_font *handle;
int len;
float width;
handle = &win->font->handle;
len = nk_strlen(*item);
width = handle->width(handle->userdata, handle->height, *item, len) + 16;
nk_layout_row_template_push_static(win->nk, width);
}
nk_layout_row_template_end(win->nk);
}
void windowMenubarEnd(WindowContext *win) {
nk_menubar_end(win->nk);
}

32
window.h Normal file
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#ifndef SHROOMS_VB_NATIVE_WINDOW_
#define SHROOMS_VB_NATIVE_WINDOW_
#include <SDL2/SDL.h>
#include "nuklear.h"
#define MENU_HEIGHT 20
typedef struct WindowContext {
SDL_Window *window;
SDL_Renderer *renderer;
SDL_Texture *leftEye;
SDL_Texture *rightEye;
struct nk_context *nk;
struct nk_font *font;
} WindowContext;
int windowInit(WindowContext *win, const char *title);
void windowDestroy(WindowContext *win);
void windowUpdate(WindowContext *win, const uint8_t *left, const uint8_t *right);
int windowGetScreenHeight(WindowContext *win);
void windowDisplayBegin(WindowContext *win);
void windowDisplayEnd(WindowContext *win);
bool windowGuiBegin(WindowContext *win, const char *title);
void windowGuiEnd(WindowContext *win);
void windowMenubarBegin(WindowContext *win, const char **items);
void windowMenubarEnd(WindowContext *win);
#endif