1#ifdef USE_CLI_DEBUGGER
  2#include "debugger/cli-debugger.h"
  3#endif
  4
  5#ifdef USE_GDB_STUB
  6#include "debugger/gdb-stub.h"
  7#endif
  8
  9#include "gba-thread.h"
 10#include "gba.h"
 11#include "renderers/video-software.h"
 12#include "sdl-audio.h"
 13#include "sdl-events.h"
 14
 15#include <SDL.h>
 16
 17#include <errno.h>
 18#include <signal.h>
 19#include <sys/time.h>
 20
 21#ifdef __ARM_NEON
 22void _neon2x(void* dest, void* src, int width, int height);
 23void _neon4x(void* dest, void* src, int width, int height);
 24#endif
 25
 26struct SoftwareRenderer {
 27	struct GBAVideoSoftwareRenderer d;
 28	struct GBASDLAudio audio;
 29	struct GBASDLEvents events;
 30#if SDL_VERSION_ATLEAST(2, 0, 0)
 31	SDL_Window* window;
 32	SDL_Texture* tex;
 33	SDL_Renderer* sdlRenderer;
 34#else
 35	int ratio;
 36#endif
 37	int viewportWidth;
 38	int viewportHeight;
 39};
 40
 41static int _GBASDLInit(struct SoftwareRenderer* renderer);
 42static void _GBASDLDeinit(struct SoftwareRenderer* renderer);
 43static void _GBASDLRunloop(struct GBAThread* context, struct SoftwareRenderer* renderer);
 44static void _GBASDLStart(struct GBAThread* context);
 45static void _GBASDLClean(struct GBAThread* context);
 46
 47int main(int argc, char** argv) {
 48	struct SoftwareRenderer renderer;
 49	GBAVideoSoftwareRendererCreate(&renderer.d);
 50
 51	struct StartupOptions opts;
 52	struct SubParser subparser;
 53	struct GraphicsOpts graphicsOpts;
 54	initParserForGraphics(&subparser, &graphicsOpts);
 55	if (!parseCommandArgs(&opts, argc, argv, &subparser)) {
 56		usage(argv[0], subparser.usage);
 57		return 1;
 58	}
 59
 60	renderer.viewportWidth = graphicsOpts.width;
 61	renderer.viewportHeight = graphicsOpts.height;
 62
 63	if (!_GBASDLInit(&renderer)) {
 64		return 1;
 65	}
 66
 67	struct GBAThread context = {
 68		.renderer = &renderer.d.d,
 69		.startCallback = _GBASDLStart,
 70		.cleanCallback = _GBASDLClean,
 71		.sync.videoFrameWait = 0,
 72		.sync.audioWait = 1,
 73		.userData = &renderer
 74	};
 75
 76	context.debugger = createDebugger(&opts);
 77
 78	GBAMapOptionsToContext(&opts, &context);
 79
 80#if SDL_VERSION_ATLEAST(2, 0, 0)
 81	renderer.events.fullscreen = graphicsOpts.fullscreen;
 82	renderer.window = SDL_CreateWindow(PROJECT_NAME, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, renderer.viewportWidth, renderer.viewportHeight, SDL_WINDOW_OPENGL | (SDL_WINDOW_FULLSCREEN_DESKTOP * renderer.events.fullscreen));
 83	SDL_GetWindowSize(renderer.window, &renderer.viewportWidth, &renderer.viewportHeight);
 84	renderer.events.window = renderer.window;
 85	renderer.sdlRenderer = SDL_CreateRenderer(renderer.window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
 86#ifdef COLOR_16_BIT
 87#ifdef COLOR_5_6_5
 88	renderer.tex = SDL_CreateTexture(renderer.sdlRenderer, SDL_PIXELFORMAT_RGB565, SDL_TEXTUREACCESS_STREAMING, VIDEO_HORIZONTAL_PIXELS, VIDEO_VERTICAL_PIXELS);
 89#else
 90	renderer.tex = SDL_CreateTexture(renderer.sdlRenderer, SDL_PIXELFORMAT_ABGR1555, SDL_TEXTUREACCESS_STREAMING, VIDEO_HORIZONTAL_PIXELS, VIDEO_VERTICAL_PIXELS);
 91#endif
 92#else
 93	renderer.tex = SDL_CreateTexture(renderer.sdlRenderer, SDL_PIXELFORMAT_ABGR8888, SDL_TEXTUREACCESS_STREAMING, VIDEO_HORIZONTAL_PIXELS, VIDEO_VERTICAL_PIXELS);
 94#endif
 95
 96	SDL_LockTexture(renderer.tex, 0, &renderer.d.outputBuffer, &renderer.d.outputBufferStride);
 97#ifdef COLOR_16_BIT
 98	renderer.d.outputBufferStride /= 2;
 99#else
100	renderer.d.outputBufferStride /= 4;
101#endif
102#else
103	SDL_Surface* surface = SDL_GetVideoSurface();
104	SDL_LockSurface(surface);
105
106	renderer.ratio = graphicsOpts.multiplier;
107	if (renderer.ratio == 1) {
108		renderer.d.outputBuffer = surface->pixels;
109#ifdef COLOR_16_BIT
110		renderer.d.outputBufferStride = surface->pitch / 2;
111#else
112		renderer.d.outputBufferStride = surface->pitch / 4;
113#endif
114	} else {
115#ifdef COLOR_16_BIT
116		renderer.d.outputBuffer = malloc(240 * 160 * 2);
117#else
118		renderer.d.outputBuffer = malloc(240 * 160 * 4);
119#endif
120		renderer.d.outputBufferStride = 240;
121	}
122#endif
123
124	GBAThreadStart(&context);
125
126	_GBASDLRunloop(&context, &renderer);
127
128#if !SDL_VERSION_ATLEAST(2, 0, 0)
129	SDL_UnlockSurface(surface);
130#endif
131	GBAThreadJoin(&context);
132	close(opts.fd);
133	if (opts.biosFd >= 0) {
134		close(opts.biosFd);
135	}
136	free(context.debugger);
137
138	_GBASDLDeinit(&renderer);
139
140	return 0;
141}
142
143static int _GBASDLInit(struct SoftwareRenderer* renderer) {
144	if (SDL_Init(SDL_INIT_VIDEO) < 0) {
145		return 0;
146	}
147
148	GBASDLInitEvents(&renderer->events);
149	GBASDLInitAudio(&renderer->audio);
150
151#if !SDL_VERSION_ATLEAST(2, 0, 0)
152#ifdef COLOR_16_BIT
153	SDL_SetVideoMode(renderer->viewportWidth, renderer->viewportHeight, 16, SDL_DOUBLEBUF | SDL_HWSURFACE);
154#else
155	SDL_SetVideoMode(renderer->viewportWidth, renderer->viewportHeight, 32, SDL_DOUBLEBUF | SDL_HWSURFACE);
156#endif
157#endif
158
159	return 1;
160}
161
162static void _GBASDLRunloop(struct GBAThread* context, struct SoftwareRenderer* renderer) {
163	SDL_Event event;
164#if !SDL_VERSION_ATLEAST(2, 0, 0)
165	SDL_Surface* surface = SDL_GetVideoSurface();
166#endif
167
168	while (context->state < THREAD_EXITING) {
169		if (GBASyncWaitFrameStart(&context->sync, context->frameskip)) {
170#if SDL_VERSION_ATLEAST(2, 0, 0)
171			SDL_UnlockTexture(renderer->tex);
172			SDL_RenderCopy(renderer->sdlRenderer, renderer->tex, 0, 0);
173			SDL_RenderPresent(renderer->sdlRenderer);
174			SDL_LockTexture(renderer->tex, 0, &renderer->d.outputBuffer, &renderer->d.outputBufferStride);
175#ifdef COLOR_16_BIT
176			renderer->d.outputBufferStride /= 2;
177#else
178			renderer->d.outputBufferStride /= 4;
179#endif
180#else
181			switch (renderer->ratio) {
182#if defined(__ARM_NEON) && COLOR_16_BIT
183			case 2:
184				_neon2x(surface->pixels, renderer->d.outputBuffer, 240, 160);
185				break;
186			case 4:
187				_neon4x(surface->pixels, renderer->d.outputBuffer, 240, 160);
188				break;
189#endif
190			case 1:
191				break;
192			default:
193				abort();
194			}
195			SDL_UnlockSurface(surface);
196			SDL_Flip(surface);
197			SDL_LockSurface(surface);
198#endif
199		}
200		GBASyncWaitFrameEnd(&context->sync);
201
202		while (SDL_PollEvent(&event)) {
203			GBASDLHandleEvent(context, &renderer->events, &event);
204		}
205	}
206}
207
208static void _GBASDLDeinit(struct SoftwareRenderer* renderer) {
209	GBASDLDeinitEvents(&renderer->events);
210	GBASDLDeinitAudio(&renderer->audio);
211	SDL_Quit();
212}
213
214static void _GBASDLStart(struct GBAThread* threadContext) {
215	struct SoftwareRenderer* renderer = threadContext->userData;
216	renderer->audio.audio = &threadContext->gba->audio;
217}
218
219static void _GBASDLClean(struct GBAThread* threadContext) {
220	struct SoftwareRenderer* renderer = threadContext->userData;
221	renderer->audio.audio = 0;
222}