1/* Copyright (c) 2013-2015 Jeffrey Pfau
 2 *
 3 * This Source Code Form is subject to the terms of the Mozilla Public
 4 * License, v. 2.0. If a copy of the MPL was not distributed with this
 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 6#include "main.h"
 7
 8#include <mgba/core/core.h>
 9#include <mgba/core/thread.h>
10#include <mgba/core/version.h>
11
12static bool mSDLSWInit(struct mSDLRenderer* renderer);
13static void mSDLSWRunloop(struct mSDLRenderer* renderer, void* user);
14static void mSDLSWDeinit(struct mSDLRenderer* renderer);
15
16void mSDLSWCreate(struct mSDLRenderer* renderer) {
17	renderer->init = mSDLSWInit;
18	renderer->deinit = mSDLSWDeinit;
19	renderer->runloop = mSDLSWRunloop;
20}
21
22bool mSDLSWInit(struct mSDLRenderer* renderer) {
23	unsigned width, height;
24	renderer->core->desiredVideoDimensions(renderer->core, &width, &height);
25	renderer->window = SDL_CreateWindow(projectName, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, renderer->viewportWidth, renderer->viewportHeight, SDL_WINDOW_OPENGL | (SDL_WINDOW_FULLSCREEN_DESKTOP * renderer->player.fullscreen));
26	SDL_GetWindowSize(renderer->window, &renderer->viewportWidth, &renderer->viewportHeight);
27	renderer->player.window = renderer->window;
28	renderer->sdlRenderer = SDL_CreateRenderer(renderer->window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
29#ifdef COLOR_16_BIT
30#ifdef COLOR_5_6_5
31	renderer->sdlTex = SDL_CreateTexture(renderer->sdlRenderer, SDL_PIXELFORMAT_RGB565, SDL_TEXTUREACCESS_STREAMING, width, height);
32#else
33	renderer->sdlTex = SDL_CreateTexture(renderer->sdlRenderer, SDL_PIXELFORMAT_ABGR1555, SDL_TEXTUREACCESS_STREAMING, width, height);
34#endif
35#else
36	renderer->sdlTex = SDL_CreateTexture(renderer->sdlRenderer, SDL_PIXELFORMAT_ABGR8888, SDL_TEXTUREACCESS_STREAMING, width, height);
37#endif
38
39	int stride;
40	SDL_LockTexture(renderer->sdlTex, 0, (void**) &renderer->outputBuffer, &stride);
41	renderer->core->setVideoBuffer(renderer->core, renderer->outputBuffer, stride / BYTES_PER_PIXEL);
42
43	return true;
44}
45
46void mSDLSWRunloop(struct mSDLRenderer* renderer, void* user) {
47	struct mCoreThread* context = user;
48	SDL_Event event;
49
50	while (mCoreThreadIsActive(context)) {
51		while (SDL_PollEvent(&event)) {
52			mSDLHandleEvent(context, &renderer->player, &event);
53		}
54
55		if (mCoreSyncWaitFrameStart(&context->impl->sync)) {
56			SDL_UnlockTexture(renderer->sdlTex);
57			SDL_RenderCopy(renderer->sdlRenderer, renderer->sdlTex, 0, 0);
58			SDL_RenderPresent(renderer->sdlRenderer);
59			int stride;
60			SDL_LockTexture(renderer->sdlTex, 0, (void**) &renderer->outputBuffer, &stride);
61			renderer->core->setVideoBuffer(renderer->core, renderer->outputBuffer, stride / BYTES_PER_PIXEL);
62		}
63		mCoreSyncWaitFrameEnd(&context->impl->sync);
64	}
65}
66
67void mSDLSWDeinit(struct mSDLRenderer* renderer) {
68	if (renderer->ratio > 1) {
69		free(renderer->outputBuffer);
70	}
71}