1/* Copyright (c) 2013-2016 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 "AssetView.h"
  7
  8#include "CoreController.h"
  9
 10#include <QTimer>
 11
 12using namespace QGBA;
 13
 14AssetView::AssetView(std::shared_ptr<CoreController> controller, QWidget* parent)
 15	: QWidget(parent)
 16	, m_cacheSet(controller->graphicCaches())
 17	, m_controller(controller)
 18{
 19	m_updateTimer.setSingleShot(true);
 20	m_updateTimer.setInterval(1);
 21	connect(&m_updateTimer, &QTimer::timeout, this, static_cast<void(AssetView::*)()>(&AssetView::updateTiles));
 22
 23	connect(controller.get(), &CoreController::frameAvailable, &m_updateTimer,
 24	        static_cast<void(QTimer::*)()>(&QTimer::start));
 25	connect(controller.get(), &CoreController::stopping, this, &AssetView::close);
 26	connect(controller.get(), &CoreController::stopping, &m_updateTimer, &QTimer::stop);
 27}
 28
 29void AssetView::updateTiles() {
 30	updateTiles(false);
 31}
 32
 33void AssetView::updateTiles(bool force) {
 34	switch (m_controller->platform()) {
 35#ifdef M_CORE_GBA
 36	case PLATFORM_GBA:
 37		updateTilesGBA(force);
 38		break;
 39#endif
 40#ifdef M_CORE_GB
 41	case PLATFORM_GB:
 42		updateTilesGB(force);
 43		break;
 44#endif
 45	default:
 46		return;
 47	}
 48}
 49
 50void AssetView::resizeEvent(QResizeEvent*) {
 51	updateTiles(true);
 52}
 53
 54void AssetView::showEvent(QShowEvent*) {
 55	updateTiles(true);
 56}
 57
 58void AssetView::compositeTile(const void* tBuffer, void* buffer, size_t stride, size_t x, size_t y, int depth) {
 59	const uint8_t* tile = static_cast<const uint8_t*>(tBuffer);
 60	uint8_t* pixels = static_cast<uint8_t*>(buffer);
 61	size_t base = stride * y + x;
 62	switch (depth) {
 63	case 2:
 64		for (size_t i = 0; i < 8; ++i) {
 65			uint8_t tileDataLower = tile[i * 2];
 66			uint8_t tileDataUpper = tile[i * 2 + 1];
 67			uint8_t pixel;
 68			pixel = ((tileDataUpper & 128) >> 6) | ((tileDataLower & 128) >> 7);
 69			pixels[base + i * stride] = pixel;
 70			pixel = ((tileDataUpper & 64) >> 5) | ((tileDataLower & 64) >> 6);
 71			pixels[base + i * stride + 1] = pixel;
 72			pixel = ((tileDataUpper & 32) >> 4) | ((tileDataLower & 32) >> 5);
 73			pixels[base + i * stride + 2] = pixel;
 74			pixel = ((tileDataUpper & 16) >> 3) | ((tileDataLower & 16) >> 4);
 75			pixels[base + i * stride + 3] = pixel;
 76			pixel = ((tileDataUpper & 8) >> 2) | ((tileDataLower & 8) >> 3);
 77			pixels[base + i * stride + 4] = pixel;
 78			pixel = ((tileDataUpper & 4) >> 1) | ((tileDataLower & 4) >> 2);
 79			pixels[base + i * stride + 5] = pixel;
 80			pixel = (tileDataUpper & 2) | ((tileDataLower & 2) >> 1);
 81			pixels[base + i * stride + 6] = pixel;
 82			pixel = ((tileDataUpper & 1) << 1) | (tileDataLower & 1);
 83			pixels[base + i * stride + 7] = pixel;
 84		}
 85		break;
 86	case 4:
 87		for (size_t j = 0; j < 8; ++j) {
 88			for (size_t i = 0; i < 4; ++i) {
 89				pixels[base + j * stride + i * 2] =  tile[j * 4 + i] & 0xF;
 90				pixels[base + j * stride + i * 2 + 1] =  tile[j * 4 + i] >> 4;
 91			}
 92		}
 93		break;
 94	case 8:
 95		for (size_t i = 0; i < 8; ++i) {
 96			memcpy(&pixels[base + i * stride], &tile[i * 8], 8);
 97		}
 98		break;
 99	}
100}