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		freeOptions(&opts);
 58		return 1;
 59	}
 60
 61	renderer.viewportWidth = graphicsOpts.width;
 62	renderer.viewportHeight = graphicsOpts.height;
 63
 64	if (!_GBASDLInit(&renderer)) {
 65		freeOptions(&opts);
 66		return 1;
 67	}
 68
 69	struct GBAThread context = {
 70		.renderer = &renderer.d.d,
 71		.startCallback = _GBASDLStart,
 72		.cleanCallback = _GBASDLClean,
 73		.sync.videoFrameWait = 0,
 74		.sync.audioWait = 1,
 75		.userData = &renderer
 76	};
 77
 78	context.debugger = createDebugger(&opts);
 79
 80	GBAMapOptionsToContext(&opts, &context);
 81
 82#if SDL_VERSION_ATLEAST(2, 0, 0)
 83	renderer.events.fullscreen = graphicsOpts.fullscreen;
 84	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));
 85	SDL_GetWindowSize(renderer.window, &renderer.viewportWidth, &renderer.viewportHeight);
 86	renderer.events.window = renderer.window;
 87	renderer.sdlRenderer = SDL_CreateRenderer(renderer.window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
 88#ifdef COLOR_16_BIT
 89#ifdef COLOR_5_6_5
 90	renderer.tex = SDL_CreateTexture(renderer.sdlRenderer, SDL_PIXELFORMAT_RGB565, SDL_TEXTUREACCESS_STREAMING, VIDEO_HORIZONTAL_PIXELS, VIDEO_VERTICAL_PIXELS);
 91#else
 92	renderer.tex = SDL_CreateTexture(renderer.sdlRenderer, SDL_PIXELFORMAT_ABGR1555, SDL_TEXTUREACCESS_STREAMING, VIDEO_HORIZONTAL_PIXELS, VIDEO_VERTICAL_PIXELS);
 93#endif
 94#else
 95	renderer.tex = SDL_CreateTexture(renderer.sdlRenderer, SDL_PIXELFORMAT_ABGR8888, SDL_TEXTUREACCESS_STREAMING, VIDEO_HORIZONTAL_PIXELS, VIDEO_VERTICAL_PIXELS);
 96#endif
 97
 98	SDL_LockTexture(renderer.tex, 0, &renderer.d.outputBuffer, &renderer.d.outputBufferStride);
 99#ifdef COLOR_16_BIT
100	renderer.d.outputBufferStride /= 2;
101#else
102	renderer.d.outputBufferStride /= 4;
103#endif
104#else
105	SDL_Surface* surface = SDL_GetVideoSurface();
106	SDL_LockSurface(surface);
107
108	renderer.ratio = graphicsOpts.multiplier;
109	if (renderer.ratio == 1) {
110		renderer.d.outputBuffer = surface->pixels;
111#ifdef COLOR_16_BIT
112		renderer.d.outputBufferStride = surface->pitch / 2;
113#else
114		renderer.d.outputBufferStride = surface->pitch / 4;
115#endif
116	} else {
117#ifdef COLOR_16_BIT
118		renderer.d.outputBuffer = malloc(240 * 160 * 2);
119#else
120		renderer.d.outputBuffer = malloc(240 * 160 * 4);
121#endif
122		renderer.d.outputBufferStride = 240;
123	}
124#endif
125
126	GBAThreadStart(&context);
127
128	_GBASDLRunloop(&context, &renderer);
129
130#if !SDL_VERSION_ATLEAST(2, 0, 0)
131	SDL_UnlockSurface(surface);
132#endif
133	GBAThreadJoin(&context);
134	free(context.debugger);
135	freeOptions(&opts);
136
137	_GBASDLDeinit(&renderer);
138
139	return 0;
140}
141
142static int _GBASDLInit(struct SoftwareRenderer* renderer) {
143	if (SDL_Init(SDL_INIT_VIDEO) < 0) {
144		return 0;
145	}
146
147	GBASDLInitEvents(&renderer->events);
148	GBASDLInitAudio(&renderer->audio);
149
150#if !SDL_VERSION_ATLEAST(2, 0, 0)
151#ifdef COLOR_16_BIT
152	SDL_SetVideoMode(renderer->viewportWidth, renderer->viewportHeight, 16, SDL_DOUBLEBUF | SDL_HWSURFACE);
153#else
154	SDL_SetVideoMode(renderer->viewportWidth, renderer->viewportHeight, 32, SDL_DOUBLEBUF | SDL_HWSURFACE);
155#endif
156#endif
157
158	return 1;
159}
160
161static void _GBASDLRunloop(struct GBAThread* context, struct SoftwareRenderer* renderer) {
162	SDL_Event event;
163#if !SDL_VERSION_ATLEAST(2, 0, 0)
164	SDL_Surface* surface = SDL_GetVideoSurface();
165#endif
166
167	while (context->state < THREAD_EXITING) {
168		if (GBASyncWaitFrameStart(&context->sync, context->frameskip)) {
169#if SDL_VERSION_ATLEAST(2, 0, 0)
170			SDL_UnlockTexture(renderer->tex);
171			SDL_RenderCopy(renderer->sdlRenderer, renderer->tex, 0, 0);
172			SDL_RenderPresent(renderer->sdlRenderer);
173			SDL_LockTexture(renderer->tex, 0, &renderer->d.outputBuffer, &renderer->d.outputBufferStride);
174#ifdef COLOR_16_BIT
175			renderer->d.outputBufferStride /= 2;
176#else
177			renderer->d.outputBufferStride /= 4;
178#endif
179#else
180			switch (renderer->ratio) {
181#if defined(__ARM_NEON) && COLOR_16_BIT
182			case 2:
183				_neon2x(surface->pixels, renderer->d.outputBuffer, 240, 160);
184				break;
185			case 4:
186				_neon4x(surface->pixels, renderer->d.outputBuffer, 240, 160);
187				break;
188#endif
189			case 1:
190				break;
191			default:
192				abort();
193			}
194			SDL_UnlockSurface(surface);
195			SDL_Flip(surface);
196			SDL_LockSurface(surface);
197#endif
198		}
199		GBASyncWaitFrameEnd(&context->sync);
200
201		while (SDL_PollEvent(&event)) {
202			GBASDLHandleEvent(context, &renderer->events, &event);
203		}
204	}
205}
206
207static void _GBASDLDeinit(struct SoftwareRenderer* renderer) {
208	GBASDLDeinitEvents(&renderer->events);
209	GBASDLDeinitAudio(&renderer->audio);
210	SDL_Quit();
211}
212
213static void _GBASDLStart(struct GBAThread* threadContext) {
214	struct SoftwareRenderer* renderer = threadContext->userData;
215	renderer->audio.audio = &threadContext->gba->audio;
216}
217
218static void _GBASDLClean(struct GBAThread* threadContext) {
219	struct SoftwareRenderer* renderer = threadContext->userData;
220	renderer->audio.audio = 0;
221}