1 files changed, 463 insertions, 0 deletions
diff --git a/backends/platform/iphone/osys_video.cpp b/backends/platform/iphone/osys_video.cpp
new file mode 100644
index 0000000000..641c341f50
--- /dev/null
+++ b/backends/platform/iphone/osys_video.cpp
@@ -0,0 +1,463 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#include "osys_main.h"
+
+const OSystem::GraphicsMode* OSystem_IPHONE::getSupportedGraphicsModes() const {
+	return s_supportedGraphicsModes;
+}
+
+
+int OSystem_IPHONE::getDefaultGraphicsMode() const {
+	return -1;
+}
+
+bool OSystem_IPHONE::setGraphicsMode(const char *mode) {
+	return true;
+}
+
+bool OSystem_IPHONE::setGraphicsMode(int mode) {
+	return true;
+}
+
+int OSystem_IPHONE::getGraphicsMode() const {
+	return -1;
+}
+
+void OSystem_IPHONE::initSize(uint width, uint height) {
+	//printf("initSize(%i, %i)\n", width, height);
+
+	_screenWidth = width;
+	_screenHeight = height;
+
+	free(_offscreen);
+
+	_offscreen = (byte *)malloc(width * height);
+	bzero(_offscreen, width * height);
+
+	free(_overlayBuffer);
+
+	int fullSize = _screenWidth * _screenHeight * sizeof(OverlayColor);
+	_overlayBuffer = (OverlayColor *)malloc(fullSize);
+	clearOverlay();
+
+	free(_fullscreen);
+
+	_fullscreen = (uint16 *)malloc(fullSize);
+	bzero(_fullscreen, fullSize);
+
+	iPhone_initSurface(width, height);
+
+	_fullScreenIsDirty = false;
+	dirtyFullScreen();
+	_mouseVisible = false;
+	_screenChangeCount++;
+	updateScreen();
+}
+
+int16 OSystem_IPHONE::getHeight() {
+	return _screenHeight;
+}
+
+int16 OSystem_IPHONE::getWidth() {
+	return _screenWidth;
+}
+
+void OSystem_IPHONE::setPalette(const byte *colors, uint start, uint num) {
+	//printf("setPalette()\n");
+	const byte *b = colors;
+
+	for (uint i = start; i < start + num; ++i) {
+		_palette[i] = Graphics::RGBToColor<Graphics::ColorMasks<565> >(b[0], b[1], b[2]);
+		b += 4;
+	}
+
+	dirtyFullScreen();
+}
+
+void OSystem_IPHONE::grabPalette(byte *colors, uint start, uint num) {
+	//printf("grabPalette()\n");
+}
+
+void OSystem_IPHONE::copyRectToScreen(const byte *buf, int pitch, int x, int y, int w, int h) {
+	//printf("copyRectToScreen(%i, %i, %i, %i)\n", x, y, w, h);
+	//Clip the coordinates
+	if (x < 0) {
+		w += x;
+		buf -= x;
+		x = 0;
+	}
+
+	if (y < 0) {
+		h += y;
+		buf -= y * pitch;
+		y = 0;
+	}
+
+	if (w > _screenWidth - x) {
+		w = _screenWidth - x;
+	}
+
+	if (h > _screenHeight - y) {
+		h = _screenHeight - y;
+	}
+
+	if (w <= 0 || h <= 0)
+		return;
+
+	if (!_fullScreenIsDirty) {
+		_dirtyRects.push_back(Common::Rect(x, y, x + w, y + h));
+	}
+
+
+	byte *dst = _offscreen + y * _screenWidth + x;
+	if (_screenWidth == pitch && pitch == w)
+		memcpy(dst, buf, h * w);
+	else {
+		do {
+			memcpy(dst, buf, w);
+			buf += pitch;
+			dst += _screenWidth;
+		} while (--h);
+	}
+}
+
+void OSystem_IPHONE::clipRectToScreen(int16 &x, int16 &y, int16 &w, int16 &h) {
+	if (x < 0) {
+		w += x;
+		x = 0;
+	}
+
+	if (y < 0) {
+		h += y;
+		y = 0;
+	}
+
+	if (w > _screenWidth - x)
+		w = _screenWidth - x;
+
+	if (h > _screenHeight - y)
+		h = _screenHeight - y;
+
+	if (w < 0) {
+		w = 0;
+	}
+
+	if (h < 0) {
+		h = 0;
+	}
+}
+
+void OSystem_IPHONE::updateScreen() {
+	//printf("updateScreen(): %i dirty rects.\n", _dirtyRects.size());
+
+	if (_dirtyRects.size() == 0 && _dirtyOverlayRects.size() == 0 && !_mouseDirty)
+		return;
+
+	internUpdateScreen();
+	_fullScreenIsDirty = false;
+	_fullScreenOverlayIsDirty = false;
+
+	iPhone_updateScreen();
+}
+
+void OSystem_IPHONE::internUpdateScreen() {
+	int16 mouseX = _mouseX - _mouseHotspotX;
+	int16 mouseY = _mouseY - _mouseHotspotY;
+	int16 mouseWidth = _mouseWidth;
+	int16 mouseHeight = _mouseHeight;
+
+	clipRectToScreen(mouseX, mouseY, mouseWidth, mouseHeight);
+
+	Common::Rect mouseRect(mouseX, mouseY, mouseX + mouseWidth, mouseY + mouseHeight);
+
+	if (_mouseDirty) {
+		if (!_fullScreenIsDirty) {
+			_dirtyRects.push_back(_lastDrawnMouseRect);
+			_dirtyRects.push_back(mouseRect);
+		}
+		if (!_fullScreenOverlayIsDirty && _overlayVisible) {
+			_dirtyOverlayRects.push_back(_lastDrawnMouseRect);
+			_dirtyOverlayRects.push_back(mouseRect);
+		}
+		_mouseDirty = false;
+		_lastDrawnMouseRect = mouseRect;
+	}
+
+	while (_dirtyRects.size()) {
+		Common::Rect dirtyRect = _dirtyRects.remove_at(_dirtyRects.size() - 1);
+
+		//printf("Drawing: (%i, %i) -> (%i, %i)\n", dirtyRect.left, dirtyRect.top, dirtyRect.right, dirtyRect.bottom);
+
+		drawDirtyRect(dirtyRect);
+
+		if (_overlayVisible)
+			drawDirtyOverlayRect(dirtyRect);
+
+		drawMouseCursorOnRectUpdate(dirtyRect, mouseRect);
+		updateHardwareSurfaceForRect(dirtyRect);
+	}
+
+	if (_overlayVisible) {
+		while (_dirtyOverlayRects.size()) {
+			Common::Rect dirtyRect = _dirtyOverlayRects.remove_at(_dirtyOverlayRects.size() - 1);
+
+			//printf("Drawing: (%i, %i) -> (%i, %i)\n", dirtyRect.left, dirtyRect.top, dirtyRect.right, dirtyRect.bottom);
+
+			drawDirtyOverlayRect(dirtyRect);
+			drawMouseCursorOnRectUpdate(dirtyRect, mouseRect);
+			updateHardwareSurfaceForRect(dirtyRect);
+		}
+	}
+}
+
+void OSystem_IPHONE::drawDirtyRect(const Common::Rect& dirtyRect) {
+	int h = dirtyRect.bottom - dirtyRect.top;
+	int w = dirtyRect.right - dirtyRect.left;
+
+	byte  *src = &_offscreen[dirtyRect.top * _screenWidth + dirtyRect.left];
+	uint16 *dst = &_fullscreen[dirtyRect.top * _screenWidth + dirtyRect.left];
+	for (int y = h; y > 0; y--) {
+		for (int x = w; x > 0; x--)
+			*dst++ = _palette[*src++];
+
+		dst += _screenWidth - w;
+		src += _screenWidth - w;
+	}
+}
+
+void OSystem_IPHONE::drawDirtyOverlayRect(const Common::Rect& dirtyRect) {
+	int h = dirtyRect.bottom - dirtyRect.top;
+
+	uint16 *src = (uint16 *)&_overlayBuffer[dirtyRect.top * _screenWidth + dirtyRect.left];
+	uint16 *dst = &_fullscreen[dirtyRect.top * _screenWidth + dirtyRect.left];
+	int x = (dirtyRect.right - dirtyRect.left) * 2;
+	for (int y = h; y > 0; y--) {
+		memcpy(dst, src, x);
+		src += _screenWidth;
+		dst += _screenWidth;
+	}
+}
+
+void OSystem_IPHONE::drawMouseCursorOnRectUpdate(const Common::Rect& updatedRect, const Common::Rect& mouseRect) {
+	//draw mouse on top
+	if (_mouseVisible && (updatedRect.intersects(mouseRect))) {
+		int srcX = 0;
+		int srcY = 0;
+		int left = _mouseX - _mouseHotspotX;
+		if (left < 0) {
+			srcX -= left;
+			left = 0;
+		}
+		int top = _mouseY - _mouseHotspotY;
+		if (top < 0) {
+			srcY -= top;
+			top = 0;
+		}
+			//int right = left + _mouseWidth;
+		int bottom = top + _mouseHeight;
+		if (bottom > _screenWidth)
+			bottom = _screenWidth;
+			int displayWidth = _mouseWidth;
+		if (_mouseWidth + left > _screenWidth)
+			displayWidth = _screenWidth - left;
+			int displayHeight = _mouseHeight;
+		if (_mouseHeight + top > _screenHeight)
+			displayHeight = _screenHeight - top;
+		byte *src = &_mouseBuf[srcY * _mouseWidth + srcX];
+		uint16 *dst = &_fullscreen[top * _screenWidth + left];
+		for (int y = displayHeight; y > srcY; y--) {
+			for (int x = displayWidth; x > srcX; x--) {
+				if (*src != _mouseKeyColour)
+					*dst = _palette[*src];
+				dst++;
+				src++;
+			}
+			dst += _screenWidth - displayWidth + srcX;
+			src += _mouseWidth - displayWidth + srcX;
+		}
+	}
+}
+
+void OSystem_IPHONE::updateHardwareSurfaceForRect(const Common::Rect& updatedRect) {
+	iPhone_updateScreenRect(_fullscreen, updatedRect.left, updatedRect.top, updatedRect.right, updatedRect.bottom );
+}
+
+Graphics::Surface *OSystem_IPHONE::lockScreen() {
+	//printf("lockScreen()\n");
+
+	_framebuffer.pixels = _offscreen;
+	_framebuffer.w = _screenWidth;
+	_framebuffer.h = _screenHeight;
+	_framebuffer.pitch = _screenWidth;
+	_framebuffer.bytesPerPixel = 1;
+
+	return &_framebuffer;
+}
+
+void OSystem_IPHONE::unlockScreen() {
+	//printf("unlockScreen()\n");
+	dirtyFullScreen();
+}
+
+void OSystem_IPHONE::setShakePos(int shakeOffset) {
+	//printf("setShakePos(%i)\n", shakeOffset);
+}
+
+void OSystem_IPHONE::showOverlay() {
+	//printf("showOverlay()\n");
+	_overlayVisible = true;
+	dirtyFullOverlayScreen();
+}
+
+void OSystem_IPHONE::hideOverlay() {
+	//printf("hideOverlay()\n");
+	_overlayVisible = false;
+	_dirtyOverlayRects.clear();
+	dirtyFullScreen();
+}
+
+void OSystem_IPHONE::clearOverlay() {
+	//printf("clearOverlay()\n");
+	bzero(_overlayBuffer, _screenWidth * _screenHeight * sizeof(OverlayColor));
+	dirtyFullOverlayScreen();
+}
+
+void OSystem_IPHONE::grabOverlay(OverlayColor *buf, int pitch) {
+	//printf("grabOverlay()\n");
+	int h = _screenHeight;
+	OverlayColor *src = _overlayBuffer;
+
+	do {
+		memcpy(buf, src, _screenWidth * sizeof(OverlayColor));
+		src += _screenWidth;
+		buf += pitch;
+	} while (--h);
+}
+
+void OSystem_IPHONE::copyRectToOverlay(const OverlayColor *buf, int pitch, int x, int y, int w, int h) {
+	//printf("copyRectToOverlay(buf, pitch=%i, x=%i, y=%i, w=%i, h=%i)\n", pitch, x, y, w, h);
+
+	//Clip the coordinates
+	if (x < 0) {
+		w += x;
+		buf -= x;
+		x = 0;
+	}
+
+	if (y < 0) {
+		h += y;
+		buf -= y * pitch;
+		y = 0;
+	}
+
+	if (w > _screenWidth - x)
+		w = _screenWidth - x;
+
+	if (h > _screenHeight - y)
+		h = _screenHeight - y;
+
+	if (w <= 0 || h <= 0)
+		return;
+
+	if (!_fullScreenOverlayIsDirty) {
+		_dirtyOverlayRects.push_back(Common::Rect(x, y, x + w, y + h));
+	}
+
+	OverlayColor *dst = _overlayBuffer + (y * _screenWidth + x);
+	if (_screenWidth == pitch && pitch == w)
+		memcpy(dst, buf, h * w * sizeof(OverlayColor));
+	else {
+		do {
+			memcpy(dst, buf, w * sizeof(OverlayColor));
+			buf += pitch;
+			dst += _screenWidth;
+		} while (--h);
+	}
+}
+
+int16 OSystem_IPHONE::getOverlayHeight() {
+	return _screenHeight;
+}
+
+int16 OSystem_IPHONE::getOverlayWidth() {
+	return _screenWidth;
+}
+
+bool OSystem_IPHONE::showMouse(bool visible) {
+	bool last = _mouseVisible;
+	_mouseVisible = visible;
+	_mouseDirty = true;
+
+	return last;
+}
+
+void OSystem_IPHONE::warpMouse(int x, int y) {
+	//printf("warpMouse()\n");
+
+	_mouseX = x;
+	_mouseY = y;
+	_mouseDirty = true;
+}
+
+void OSystem_IPHONE::dirtyFullScreen() {
+	if (!_fullScreenIsDirty) {
+		_dirtyRects.clear();
+		_dirtyRects.push_back(Common::Rect(0, 0, _screenWidth, _screenHeight));
+		_fullScreenIsDirty = true;
+	}
+}
+
+void OSystem_IPHONE::dirtyFullOverlayScreen() {
+	if (!_fullScreenOverlayIsDirty) {
+		_dirtyOverlayRects.clear();
+		_dirtyOverlayRects.push_back(Common::Rect(0, 0, _screenWidth, _screenHeight));
+		_fullScreenOverlayIsDirty = true;
+	}
+}
+
+void OSystem_IPHONE::setMouseCursor(const byte *buf, uint w, uint h, int hotspotX, int hotspotY, byte keycolor, int cursorTargetScale) {
+	//printf("setMouseCursor(%i, %i)\n", hotspotX, hotspotY);
+
+	if (_mouseBuf != NULL && (_mouseWidth != w || _mouseHeight != h)) {
+		free(_mouseBuf);
+		_mouseBuf = NULL;
+	}
+
+	if (_mouseBuf == NULL)
+		_mouseBuf = (byte *)malloc(w * h);
+
+	_mouseWidth = w;
+	_mouseHeight = h;
+
+	_mouseHotspotX = hotspotX;
+	_mouseHotspotY = hotspotY;
+
+	_mouseKeyColour = keycolor;
+
+	memcpy(_mouseBuf, buf, w * h);
+
+	_mouseDirty = true;
+}