1 files changed, 453 insertions, 0 deletions
diff --git a/backends/platform/wii/osystem_gfx.cpp b/backends/platform/wii/osystem_gfx.cpp
new file mode 100644
index 0000000000..1e54233c93
--- /dev/null
+++ b/backends/platform/wii/osystem_gfx.cpp
@@ -0,0 +1,453 @@
+/* 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.
+ */
+
+#include <malloc.h>
+
+#include "osystem.h"
+#include "gx_supp.h"
+
+#define MAX_FPS 30
+
+enum GraphicModeID {
+	GM_DEFAULT
+};
+
+void OSystem_Wii::initGfx() {
+	_surface.w = 0;
+	_surface.h = 0;
+	_surface.pitch = 0;
+	_surface.pixels = NULL;
+	_surface.bytesPerPixel = 0;
+
+	GX_InitVideo();
+
+	_overlayWidth = 640;
+	_overlayHeight = 480;
+
+	_overlaySize = _overlayWidth * _overlayHeight * 2;
+	_overlayPixels = (OverlayColor *) memalign(32, _overlaySize);
+
+	_palette = (u16 *) memalign(32, 256 * 2);
+	memset(_palette, 0, 256 * 2);
+
+	_cursorPalette = (u16 *) memalign(32, 256 * 2);
+	memset(_cursorPalette, 0, 256 * 2);
+
+	_supportedGraphicsModes = new OSystem::GraphicsMode[2];
+	_supportedGraphicsModes[0].name = strdup("gx");
+	_supportedGraphicsModes[0].description = strdup("wii hardware scaler");
+	_supportedGraphicsModes[0].id = GM_DEFAULT;
+	_supportedGraphicsModes[1].name = 0;
+	_supportedGraphicsModes[1].description = 0;
+	_supportedGraphicsModes[1].id = 0;
+
+	_texture = (u16 *) memalign(32, _overlaySize);
+
+	GX_Start(_overlayWidth, _overlayHeight, 320, 240);
+}
+
+void OSystem_Wii::deinitGfx() {
+	GX_AbortFrame();
+
+	if (_supportedGraphicsModes) {
+		delete[] _supportedGraphicsModes;
+		_supportedGraphicsModes = NULL;
+	}
+
+	if (_gamePixels) {
+		free(_gamePixels);
+		_gamePixels = NULL;
+	}
+
+	if (_palette) {
+		free(_palette);
+		_palette = NULL;
+	}
+
+	if (_overlayPixels) {
+		free(_overlayPixels);
+		_overlayPixels = NULL;
+	}
+
+	if (_mouseCursor) {
+		free(_mouseCursor);
+		_mouseCursor = NULL;
+	}
+
+	if (_cursorPalette) {
+		free(_cursorPalette);
+		_cursorPalette = NULL;
+	}
+
+	if (_texture) {
+		free(_texture);
+		_texture = NULL;
+	}
+}
+
+const OSystem::GraphicsMode* OSystem_Wii::getSupportedGraphicsModes() const {
+	return _supportedGraphicsModes;
+}
+
+int OSystem_Wii::getDefaultGraphicsMode() const {
+	return GM_DEFAULT;
+}
+
+bool OSystem_Wii::setGraphicsMode(const char *mode) {
+	setGraphicsMode(GM_DEFAULT);
+
+	return true;
+}
+
+bool OSystem_Wii::setGraphicsMode(int mode) {
+	return true;
+}
+
+int OSystem_Wii::getGraphicsMode() const {
+	return _activeGraphicsMode;
+}
+
+void OSystem_Wii::initSize(uint width, uint height) {
+	if (_gameWidth != width || _gameHeight != height) {
+		printf("initSize %u %u\n", width, height);
+
+		_gameWidth = width;
+		_gameHeight = height;
+
+		if(_gamePixels)
+			free(_gamePixels);
+
+		_gamePixels = (u8 *) memalign(32, _gameWidth * _gameHeight);
+
+		if (!_overlayVisible) {
+			_currentWidth = _gameWidth;
+			_currentHeight = _gameHeight;
+			updateEventScreenResolution();
+		}
+	}
+}
+
+int16 OSystem_Wii::getWidth() {
+	return _gameWidth;
+}
+
+int16 OSystem_Wii::getHeight() {
+	return _gameHeight;
+}
+
+void OSystem_Wii::setPalette(const byte *colors, uint start, uint num) {
+	const byte *p = colors;
+	for (uint i = 0; i < num; ++i) {
+		_palette[start + i] = RGBToColor(p[0], p[1], p[2]);
+		p += 4;
+	}
+}
+
+void OSystem_Wii::grabPalette(byte *colors, uint start, uint num) {
+	byte *p = colors;
+	u8 r, g, b;
+	for (uint i = 0; i < num; ++i) {
+		colorToRGB(_palette[start + i], r, g, b);
+		p[0] = r;
+		p[1] = g;
+		p[2] = b;
+		p[3] = 0xff;
+		p += 4;
+	}
+}
+
+void OSystem_Wii::setCursorPalette(const byte *colors, uint start, uint num) {
+	const byte *p = colors;
+	for (uint i = 0; i < num; ++i) {
+		_cursorPalette[start + i] = RGBToColor(p[0], p[1], p[2]);
+		p += 4;
+	}
+
+	_cursorPaletteDisabled = false;
+}
+
+void OSystem_Wii::disableCursorPalette(bool disable) {
+	_cursorPaletteDisabled = disable;
+}
+
+void OSystem_Wii::copyRectToScreen(const byte *buf, int pitch, int x, int y,
+									int w, int h) {
+	if (x < 0) {
+		w += x;
+		buf -= x;
+		x = 0;
+	}
+
+	if (y < 0) {
+		h += y;
+		buf -= y * pitch;
+		y = 0;
+	}
+
+	if (w > _gameWidth - x)
+		w = _gameWidth - x;
+
+	if (h > _gameHeight - y)
+		h = _gameHeight - y;
+
+	if (w <= 0 || h <= 0)
+		return;
+
+	byte *dst = _gamePixels + y * _gameWidth + x;
+	if (_gameWidth == pitch && pitch == w) {
+		memcpy(dst, buf, h * w);
+	} else {
+		do {
+			memcpy(dst, buf, w);
+			buf += pitch;
+			dst += _gameWidth;
+		} while (--h);
+	}
+}
+
+void OSystem_Wii::updateScreen() {
+	static u32 x, y, h, skip;
+	static s16 msx, msy, mox, moy, mskip;
+	static u16 mpx, mpy;
+	static u8 *s;
+	static u16 *d, *p;
+
+	u32 now = getMillis();
+	if (now - _lastScreenUpdate < 1000 / MAX_FPS)
+		return;
+
+	_lastScreenUpdate = now;
+
+	h = 0;
+	if (_overlayVisible) {
+		memcpy(_texture, _overlayPixels, _overlaySize);
+	} else {
+		for (y = 0; y < _gameHeight; ++y) {
+			for (x = 0; x < _gameWidth; ++x)
+				_texture[h + x] = _palette[_gamePixels[h + x]];
+
+			h += _gameWidth;
+		}
+	}
+
+	if (_mouseVisible) {
+		msx = _mouseX - _mouseHotspotX;
+		msy = _mouseY - _mouseHotspotY; 
+		mox = 0;
+		moy = 0;
+		mpx = _mouseWidth;
+		mpy = _mouseHeight;
+
+		if (msx < 0) {
+			mox = -msx;
+			mpx -= mox;
+			msx = 0;
+		} else
+			if (msx + mpx > _currentWidth - 1)
+				mpx = _currentWidth - msx - 1;
+
+		if (msy < 0) {
+			moy = -msy;
+			mpy -= moy;
+			msy = 0;
+		} else
+			if (msy + mpy + 1 > _currentHeight - 1)
+				mpy = _currentHeight - msy - 1;
+
+
+		if (_cursorPaletteDisabled)
+			p = _palette;
+		else
+			p = _cursorPalette;
+
+		skip = _currentWidth - mpx;
+		mskip = _mouseWidth - mpx;
+
+		s = _mouseCursor + moy * _mouseWidth + mox;
+		d = _texture + (msy * _currentWidth + msx);
+
+		for (y = 0; y < mpy; ++y) {
+			for (x = 0; x < mpx; ++x) {
+				if (*s == _mouseKeyColor) {
+					s++;
+					d++;
+
+					continue;
+				}
+
+				*d++ = p[*s];
+				s++;
+			}
+
+			d += skip;
+			s += mskip;
+		}
+	}
+
+	GX_Render(_currentWidth, _currentHeight, (u8 *) _texture,
+				_currentWidth * 2);
+}
+
+Graphics::Surface *OSystem_Wii::lockScreen() {
+	_surface.pixels = _gamePixels;
+	_surface.w = _gameWidth;
+	_surface.h = _gameHeight;
+	_surface.pitch = _gameWidth;
+	_surface.bytesPerPixel = 1;
+
+	return &_surface;
+}
+
+void OSystem_Wii::unlockScreen() {
+}
+
+void OSystem_Wii::setShakePos(int shakeOffset) {
+}
+
+void OSystem_Wii::showOverlay() {
+	_mouseX = _overlayWidth / 2;
+	_mouseY = _overlayHeight / 2;
+	_overlayVisible = true;
+	_currentWidth = _overlayWidth;
+	_currentHeight = _overlayHeight;
+
+	updateEventScreenResolution();
+}
+
+void OSystem_Wii::hideOverlay() {
+	_mouseX = _gameWidth / 2;
+	_mouseY = _gameHeight / 2;
+	_overlayVisible = false;
+	_currentWidth = _gameWidth;
+	_currentHeight = _gameHeight;
+
+	updateEventScreenResolution();
+}
+
+void OSystem_Wii::clearOverlay() {
+	memset(_overlayPixels, 0, _overlaySize);
+}
+
+void OSystem_Wii::grabOverlay(OverlayColor *buf, int pitch) {
+	int h = _overlayHeight;
+	OverlayColor *src = _overlayPixels;
+
+	do {
+		memcpy(buf, src, _overlayWidth * sizeof(OverlayColor));
+		src += _overlayWidth;
+		buf += pitch;
+	} while (--h);
+}
+
+void OSystem_Wii::copyRectToOverlay(const OverlayColor *buf, int pitch, int x,
+									int y, int w, int h) {
+	if (x < 0) {
+		w += x;
+		buf -= x;
+		x = 0;
+	}
+
+	if (y < 0) {
+		h += y;
+		buf -= y * pitch;
+		y = 0;
+	}
+
+	if (w > _overlayWidth - x)
+		w = _overlayWidth - x;
+
+	if (h > _overlayHeight - y)
+		h = _overlayHeight - y;
+
+	if (w <= 0 || h <= 0)
+		return;
+
+	OverlayColor *dst = _overlayPixels + (y * _overlayWidth + x);
+	if (_overlayWidth == pitch && pitch == w) {
+		memcpy(dst, buf, h * w * sizeof(OverlayColor));
+	} else {
+		do {
+			memcpy(dst, buf, w * sizeof(OverlayColor));
+			buf += pitch;
+			dst += _overlayWidth;
+		} while (--h);
+	}
+}
+
+int16 OSystem_Wii::getOverlayWidth() {
+	return _overlayWidth;
+}
+
+int16 OSystem_Wii::getOverlayHeight() {
+	return _overlayHeight;
+}
+
+OverlayColor OSystem_Wii::RGBToColor(uint8 r, uint8 g, uint8 b) {
+	return (((r >> 3) & 0x1f) << 11) | (((g >> 2) & 0x3f) << 5 ) |
+			((b >> 3) & 0x1f);
+}
+
+void OSystem_Wii::colorToRGB(OverlayColor color, uint8 &r, uint8 &g, uint8 &b) {
+	r = ((color >> 11) & 0x1f) << 3;
+	g = ((color >> 5) & 0x3f) << 2;
+	b = (color & 0x1f) << 3;
+}
+
+OverlayColor OSystem_Wii::ARGBToColor(uint8 a, uint8 r, uint8 g, uint8 b) {
+	return RGBToColor(r, g, b);
+}
+
+void OSystem_Wii::colorToARGB(OverlayColor color, uint8 &a, uint8 &r, uint8 &g,
+								uint8 &b) {
+	a = 0xff;
+	colorToRGB(color, r, g, b);
+}
+
+bool OSystem_Wii::showMouse(bool visible) {
+	bool last = _mouseVisible;
+	_mouseVisible = visible;
+
+	return last;
+}
+
+void OSystem_Wii::warpMouse(int x, int y) {
+	_mouseX = x;
+	_mouseY = y;
+}
+
+void OSystem_Wii::setMouseCursor(const byte *buf, uint w, uint h, int hotspotX,
+									int hotspotY, byte keycolor,
+									int cursorTargetScale) {
+	(void) cursorTargetScale; // TODO
+
+	_mouseWidth = w;
+	_mouseHeight = h;
+	_mouseHotspotX = hotspotX;
+	_mouseHotspotY = hotspotY;
+	_mouseKeyColor = keycolor;
+
+	if (_mouseCursor)
+		free(_mouseCursor);
+
+	_mouseCursor = (u8 *) memalign(32, w * h);
+	memcpy(_mouseCursor, buf, w * h);
+}
+