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authorRichieSams2013-11-01 00:21:08 -0500
committerRichieSams2013-11-01 02:52:57 -0500
commit5842c5098fbd00c8ab5245ba1d6ca9c2675e3da4 (patch)
treebdb138d047faae28893bdf37758940916a091a12 /engines/zvision/render_manager.cpp
parent651bf899399de2b5c2d8e62a5bb4964b037950d2 (diff)
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ZVISION: Create a folder structure for ZVision source files
I personally used filters within my IDE, but since others are now joining the project, it was brought to my attention that some better organization would be nice.
Diffstat (limited to 'engines/zvision/render_manager.cpp')
-rw-r--r--engines/zvision/render_manager.cpp526
1 files changed, 0 insertions, 526 deletions
diff --git a/engines/zvision/render_manager.cpp b/engines/zvision/render_manager.cpp
deleted file mode 100644
index af8ca7fd64..0000000000
--- a/engines/zvision/render_manager.cpp
+++ /dev/null
@@ -1,526 +0,0 @@
-/* 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 "common/scummsys.h"
-
-#include "zvision/render_manager.h"
-
-#include "zvision/lzss_read_stream.h"
-
-#include "common/file.h"
-#include "common/system.h"
-#include "common/stream.h"
-
-#include "engines/util.h"
-
-#include "graphics/decoders/tga.h"
-
-
-namespace ZVision {
-
-RenderManager::RenderManager(OSystem *system, uint32 windowWidth, uint32 windowHeight, const Common::Rect workingWindow, const Graphics::PixelFormat pixelFormat)
- : _system(system),
- _workingWidth(workingWindow.width()),
- _workingHeight(workingWindow.height()),
- _screenCenterX(_workingWidth / 2),
- _screenCenterY(_workingHeight / 2),
- _workingWindow(workingWindow),
- _pixelFormat(pixelFormat),
- _backgroundWidth(0),
- _backgroundHeight(0),
- _backgroundInverseVelocity(0),
- _backgroundOffset(0, 0),
- _accumulatedVelocityMilliseconds(0),
- _renderTable(_workingWidth, _workingHeight) {
-
- _workingWindowBuffer.create(_workingWidth, _workingHeight, _pixelFormat);
- _backBuffer.create(windowWidth, windowHeight, pixelFormat);
-}
-
-RenderManager::~RenderManager() {
- _workingWindowBuffer.free();
- _currentBackground.free();
- _backBuffer.free();
-
- for (AlphaEntryMap::iterator iter = _alphaDataEntries.begin(); iter != _alphaDataEntries.end(); ++iter) {
- iter->_value.data->free();
- delete iter->_value.data;
- }
-}
-
-void RenderManager::update(uint deltaTimeInMillis) {
- // An inverse velocity of 0 would be infinitely fast, so we'll let 0 mean no velocity.
- if (_backgroundInverseVelocity != 0) {
- _accumulatedVelocityMilliseconds += deltaTimeInMillis;
-
- uint absVelocity = uint(abs(_backgroundInverseVelocity));
-
- int numberOfSteps = 0;
- while (_accumulatedVelocityMilliseconds >= absVelocity) {
- _accumulatedVelocityMilliseconds -= absVelocity;
- numberOfSteps++;
- }
-
- // Choose the direction of movement using the sign of the velocity
- moveBackground(_backgroundInverseVelocity < 0 ? -numberOfSteps : numberOfSteps);
- }
-}
-
-void RenderManager::renderBackbufferToScreen() {
- if (!_workingWindowDirtyRect.isEmpty()) {
- RenderTable::RenderState state = _renderTable.getRenderState();
- if (state == RenderTable::PANORAMA || state == RenderTable::TILT) {
- _renderTable.mutateImage((uint16 *)_workingWindowBuffer.getPixels(), (uint16 *)_backBuffer.getBasePtr(_workingWindow.left + _workingWindowDirtyRect.left, _workingWindow.top + _workingWindowDirtyRect.top), _backBuffer.w, _workingWindowDirtyRect);
- } else {
- _backBuffer.copyRectToSurface(_workingWindowBuffer.getBasePtr(_workingWindowDirtyRect.left, _workingWindowDirtyRect.top), _workingWindowBuffer.pitch, _workingWindow.left + _workingWindowDirtyRect.left, _workingWindow.top + _workingWindowDirtyRect.top, _workingWindowDirtyRect.width(), _workingWindowDirtyRect.height());
- }
-
- // Translate the working window dirty rect to screen coords
- _workingWindowDirtyRect.translate(_workingWindow.left, _workingWindow.top);
- // Then extend the backbuffer dirty rect to contain it
- if (_backBufferDirtyRect.isEmpty()) {
- _backBufferDirtyRect = _workingWindowDirtyRect;
- } else {
- _backBufferDirtyRect.extend(_workingWindowDirtyRect);
- }
-
- // Clear the dirty rect
- _workingWindowDirtyRect = Common::Rect();
- }
-
- // TODO: Add menu rendering
-
- // Render alpha entries
- processAlphaEntries();
-
- if (!_backBufferDirtyRect.isEmpty()) {
- _system->copyRectToScreen(_backBuffer.getBasePtr(_backBufferDirtyRect.left, _backBufferDirtyRect.top), _backBuffer.pitch, _backBufferDirtyRect.left, _backBufferDirtyRect.top, _backBufferDirtyRect.width(), _backBufferDirtyRect.height());
- _backBufferDirtyRect = Common::Rect();
- }
-}
-
-void RenderManager::processAlphaEntries() {
- // TODO: Add dirty rectangling support. AKA only draw an entry if the _backbufferDirtyRect intersects/contains the entry Rect
-
- for (AlphaEntryMap::iterator iter = _alphaDataEntries.begin(); iter != _alphaDataEntries.end(); ++iter) {
- uint32 destOffset = 0;
- uint32 sourceOffset = 0;
- uint16 *backbufferPtr = (uint16 *)_backBuffer.getBasePtr(iter->_value.destX + _workingWindow.left, iter->_value.destY + _workingWindow.top);
- uint16 *entryPtr = (uint16 *)iter->_value.data->getPixels();
-
- for (int32 y = 0; y < iter->_value.height; ++y) {
- for (int32 x = 0; x < iter->_value.width; ++x) {
- uint16 color = entryPtr[sourceOffset + x];
- if (color != iter->_value.alphaColor) {
- backbufferPtr[destOffset + x] = color;
- }
- }
-
- destOffset += _backBuffer.w;
- sourceOffset += iter->_value.width;
- }
-
- if (_backBufferDirtyRect.isEmpty()) {
- _backBufferDirtyRect = Common::Rect(iter->_value.destX + _workingWindow.left, iter->_value.destY + _workingWindow.top, iter->_value.destX + _workingWindow.left + iter->_value.width, iter->_value.destY + _workingWindow.top + iter->_value.height);
- } else {
- _backBufferDirtyRect.extend(Common::Rect(iter->_value.destX + _workingWindow.left, iter->_value.destY + _workingWindow.top, iter->_value.destX + _workingWindow.left + iter->_value.width, iter->_value.destY + _workingWindow.top + iter->_value.height));
- }
- }
-}
-
-void RenderManager::clearWorkingWindowTo555Color(uint16 color) {
- uint32 workingWindowSize = _workingWidth * _workingHeight;
- byte r, g, b;
- Graphics::PixelFormat(2, 5, 5, 5, 0, 10, 5, 0, 0).colorToRGB(color, r, g, b);
- uint16 colorIn565 = _pixelFormat.RGBToColor(r, g, b);
- uint16 *bufferPtr = (uint16 *)_workingWindowBuffer.getPixels();
-
- for (uint32 i = 0; i < workingWindowSize; ++i) {
- bufferPtr[i] = colorIn565;
- }
-}
-
-void RenderManager::renderSubRectToScreen(Graphics::Surface &surface, int16 destinationX, int16 destinationY, bool wrap) {
- int16 subRectX = 0;
- int16 subRectY = 0;
-
- // Take care of negative destinations
- if (destinationX < 0) {
- subRectX = -destinationX;
- destinationX = 0;
- } else if (destinationX >= surface.w) {
- // Take care of extreme positive destinations
- destinationX -= surface.w;
- }
-
- // Take care of negative destinations
- if (destinationY < 0) {
- subRectY = -destinationY;
- destinationY = 0;
- } else if (destinationY >= surface.h) {
- // Take care of extreme positive destinations
- destinationY -= surface.h;
- }
-
- if (wrap) {
- _backgroundWidth = surface.w;
- _backgroundHeight = surface.h;
-
- if (destinationX > 0) {
- // Move destinationX to 0
- subRectX = surface.w - destinationX;
- destinationX = 0;
- }
-
- if (destinationY > 0) {
- // Move destinationY to 0
- subRectY = surface.h - destinationY;
- destinationY = 0;
- }
- }
-
- // Clip subRect to working window bounds
- Common::Rect subRect(subRectX, subRectY, subRectX + _workingWidth, subRectY + _workingHeight);
-
- if (!wrap) {
- // Clip to image bounds
- subRect.clip(surface.w, surface.h);
- }
-
- // Check destRect for validity
- if (!subRect.isValidRect() || subRect.isEmpty())
- return;
-
- copyRectToWorkingWindow((const uint16 *)surface.getBasePtr(subRect.left, subRect.top), destinationX, destinationY, surface.w, subRect.width(), subRect.height());
-}
-
-void RenderManager::renderImageToScreen(const Common::String &fileName, int16 destinationX, int16 destinationY, bool wrap) {
- Graphics::Surface surface;
- readImageToSurface(fileName, surface);
-
- renderSubRectToScreen(surface, destinationX, destinationY, wrap);
-}
-
-void RenderManager::renderImageToScreen(Graphics::Surface &surface, int16 destinationX, int16 destinationY, bool wrap) {
- renderSubRectToScreen(surface, destinationX, destinationY, wrap);
-}
-
-void RenderManager::readImageToSurface(const Common::String &fileName, Graphics::Surface &destination) {
- Common::File file;
-
- if (!file.open(fileName)) {
- warning("Could not open file %s", fileName.c_str());
- return;
- }
-
- // Read the magic number
- // Some files are true TGA, while others are TGZ
- uint32 fileType = file.readUint32BE();
-
- uint32 imageWidth;
- uint32 imageHeight;
- Graphics::TGADecoder tga;
- uint16 *buffer;
- bool isTransposed = _renderTable.getRenderState() == RenderTable::PANORAMA;
- // All ZVision images are in RGB 555
- Graphics::PixelFormat pixelFormat555 = Graphics::PixelFormat(2, 5, 5, 5, 0, 10, 5, 0, 0);
- destination.format = pixelFormat555;
-
- bool isTGZ;
-
- // Check for TGZ files
- if (fileType == MKTAG('T', 'G', 'Z', '\0')) {
- isTGZ = true;
-
- // TGZ files have a header and then Bitmap data that is compressed with LZSS
- uint32 decompressedSize = file.readSint32LE();
- imageWidth = file.readSint32LE();
- imageHeight = file.readSint32LE();
-
- LzssReadStream lzssStream(&file);
- buffer = (uint16 *)(new uint16[decompressedSize]);
- lzssStream.read(buffer, decompressedSize);
- } else {
- isTGZ = false;
-
- // Reset the cursor
- file.seek(0);
-
- // Decode
- if (!tga.loadStream(file)) {
- warning("Error while reading TGA image");
- return;
- }
-
- Graphics::Surface tgaSurface = *(tga.getSurface());
- imageWidth = tgaSurface.w;
- imageHeight = tgaSurface.h;
-
- buffer = (uint16 *)tgaSurface.getPixels();
- }
-
- // Flip the width and height if transposed
- if (isTransposed) {
- uint16 temp = imageHeight;
- imageHeight = imageWidth;
- imageWidth = temp;
- }
-
- // If the destination internal buffer is the same size as what we're copying into it,
- // there is no need to free() and re-create
- if (imageWidth != destination.w || imageHeight != destination.h) {
- destination.create(imageWidth, imageHeight, pixelFormat555);
- }
-
- // If transposed, 'un-transpose' the data while copying it to the destination
- // Otherwise, just do a simple copy
- if (isTransposed) {
- uint16 *dest = (uint16 *)destination.getPixels();
-
- for (uint32 y = 0; y < imageHeight; ++y) {
- uint32 columnIndex = y * imageWidth;
-
- for (uint32 x = 0; x < imageWidth; ++x) {
- dest[columnIndex + x] = buffer[x * imageHeight + y];
- }
- }
- } else {
- memcpy(destination.getPixels(), buffer, imageWidth * imageHeight * _pixelFormat.bytesPerPixel);
- }
-
- // Cleanup
- if (isTGZ) {
- delete[] buffer;
- } else {
- tga.destroy();
- }
-
- // Convert in place to RGB 565 from RGB 555
- destination.convertToInPlace(_pixelFormat);
-}
-
-void RenderManager::copyRectToWorkingWindow(const uint16 *buffer, int32 destX, int32 destY, int32 imageWidth, int32 width, int32 height) {
- uint32 destOffset = 0;
- uint32 sourceOffset = 0;
- uint16 *workingWindowBufferPtr = (uint16 *)_workingWindowBuffer.getBasePtr(destX, destY);
-
- for (int32 y = 0; y < height; ++y) {
- for (int32 x = 0; x < width; ++x) {
- workingWindowBufferPtr[destOffset + x] = buffer[sourceOffset + x];
- }
-
- destOffset += _workingWidth;
- sourceOffset += imageWidth;
- }
-
- if (_workingWindowDirtyRect.isEmpty()) {
- _workingWindowDirtyRect = Common::Rect(destX, destY, destX + width, destY + height);
- } else {
- _workingWindowDirtyRect.extend(Common::Rect(destX, destY, destX + width, destY + height));
- }
-
- // TODO: Remove this from release. It's here to make sure code that uses this function clips their destinations correctly
- assert(_workingWindowDirtyRect.width() <= _workingWidth && _workingWindowDirtyRect.height() <= _workingHeight);
-}
-
-void RenderManager::copyRectToWorkingWindow(const uint16 *buffer, int32 destX, int32 destY, int32 imageWidth, int32 width, int32 height, int16 alphaColor, uint32 idNumber) {
- AlphaDataEntry entry;
- entry.alphaColor = alphaColor;
- entry.data = new Graphics::Surface();
- entry.data->create(width, height, _pixelFormat);
- entry.destX = destX;
- entry.destY = destY;
- entry.width = width;
- entry.height = height;
-
- uint32 sourceOffset = 0;
- uint32 destOffset = 0;
- uint16 *surfacePtr = (uint16 *)entry.data->getPixels();
-
- for (int32 y = 0; y < height; ++y) {
- for (int32 x = 0; x < width; ++x) {
- surfacePtr[destOffset + x] = buffer[sourceOffset + x];
- }
-
- destOffset += width;
- sourceOffset += imageWidth;
- }
-
- _alphaDataEntries[idNumber] = entry;
-}
-
-Common::Rect RenderManager::renderTextToWorkingWindow(uint32 idNumber, const Common::String &text, TruetypeFont *font, int destX, int destY, uint16 textColor, int maxWidth, int maxHeight, Graphics::TextAlign align, bool wrap) {
- AlphaDataEntry entry;
- entry.alphaColor = 0;
- entry.destX = destX;
- entry.destY = destY;
-
- // Draw the text to the working window
- entry.data = font->drawTextToSurface(text, textColor, maxWidth, maxHeight, align, wrap);
- entry.width = entry.data->w;
- entry.height = entry.data->h;
-
- _alphaDataEntries[idNumber] = entry;
-
- return Common::Rect(destX, destY, destX + entry.width, destY + entry.height);
-}
-
-const Common::Point RenderManager::screenSpaceToImageSpace(const Common::Point &point) {
- // Convert from screen space to working window space
- Common::Point newPoint(point - Common::Point(_workingWindow.left, _workingWindow.top));
-
- RenderTable::RenderState state = _renderTable.getRenderState();
- if (state == RenderTable::PANORAMA || state == RenderTable::TILT) {
- newPoint = _renderTable.convertWarpedCoordToFlatCoord(newPoint);
- }
-
- if (state == RenderTable::PANORAMA) {
- newPoint -= (Common::Point(_screenCenterX, 0) - _backgroundOffset);
- } else if (state == RenderTable::TILT) {
- newPoint -= (Common::Point(0, _screenCenterY) - _backgroundOffset);
- }
-
- if (newPoint.x < 0)
- newPoint.x += _backgroundWidth;
- else if (newPoint.x >= _backgroundWidth)
- newPoint.x -= _backgroundWidth;
- if (newPoint.y < 0)
- newPoint.y += _backgroundHeight;
- else if (newPoint.y >= _backgroundHeight)
- newPoint.y -= _backgroundHeight;
-
- return newPoint;
-}
-
-const Common::Point RenderManager::imageSpaceToWorkingWindowSpace(const Common::Point &point) {
- Common::Point newPoint(point);
-
- RenderTable::RenderState state = _renderTable.getRenderState();
- if (state == RenderTable::PANORAMA) {
- newPoint += (Common::Point(_screenCenterX, 0) - _backgroundOffset);
- } else if (state == RenderTable::TILT) {
- newPoint += (Common::Point(0, _screenCenterY) - _backgroundOffset);
- }
-
- return newPoint;
-}
-
-bool RenderManager::clipRectToWorkingWindow(Common::Rect &rect) {
- if (!_workingWindow.contains(rect)) {
- return false;
- }
-
- // We can't clip against the actual working window rect because it's in screen space
- // But rect is in working window space
- rect.clip(_workingWidth, _workingHeight);
- return true;
-}
-
-RenderTable *RenderManager::getRenderTable() {
- return &_renderTable;
-}
-
-void RenderManager::setBackgroundImage(const Common::String &fileName) {
- readImageToSurface(fileName, _currentBackground);
-
- moveBackground(0);
-}
-
-void RenderManager::setBackgroundPosition(int offset) {
- RenderTable::RenderState state = _renderTable.getRenderState();
- if (state == RenderTable::TILT) {
- _backgroundOffset.x = 0;
- _backgroundOffset.y = offset;
- } else if (state == RenderTable::PANORAMA) {
- _backgroundOffset.x = offset;
- _backgroundOffset.y = 0;
- } else {
- _backgroundOffset.x = 0;
- _backgroundOffset.y = 0;
- }
-}
-
-void RenderManager::setBackgroundVelocity(int velocity) {
- // setBackgroundVelocity(0) will be called quite often, so make sure
- // _backgroundInverseVelocity isn't already 0 to prevent an extraneous assignment
- if (velocity == 0) {
- if (_backgroundInverseVelocity != 0) {
- _backgroundInverseVelocity = 0;
- }
- } else {
- _backgroundInverseVelocity = 1000 / velocity;
- }
-}
-
-void RenderManager::moveBackground(int offset) {
- RenderTable::RenderState state = _renderTable.getRenderState();
- if (state == RenderTable::TILT) {
- _backgroundOffset += Common::Point(0, offset);
-
- _backgroundOffset.y = CLIP<int16>(_backgroundOffset.y, _screenCenterY, (int16)_backgroundHeight - _screenCenterY);
-
- renderImageToScreen(_currentBackground, 0, _screenCenterY - _backgroundOffset.y, true);
- } else if (state == RenderTable::PANORAMA) {
- _backgroundOffset += Common::Point(offset, 0);
-
- if (_backgroundOffset.x <= -_backgroundWidth)
- _backgroundOffset.x += _backgroundWidth;
- else if (_backgroundOffset.x >= _backgroundWidth)
- _backgroundOffset.x -= _backgroundWidth;
-
- renderImageToScreen(_currentBackground, _screenCenterX - _backgroundOffset.x, 0, true);
- } else {
- renderImageToScreen(_currentBackground, 0, 0);
- }
-}
-
-uint32 RenderManager::getCurrentBackgroundOffset() {
- RenderTable::RenderState state = _renderTable.getRenderState();
-
- if (state == RenderTable::PANORAMA) {
- return _backgroundOffset.x;
- } else if (state == RenderTable::TILT) {
- return _backgroundOffset.y;
- } else {
- return 0;
- }
-}
-
-Graphics::Surface *RenderManager::tranposeSurface(const Graphics::Surface *surface) {
- Graphics::Surface *tranposedSurface = new Graphics::Surface();
- tranposedSurface->create(surface->h, surface->w, surface->format);
-
- const uint16 *source = (const uint16 *)surface->getPixels();
- uint16 *dest = (uint16 *)tranposedSurface->getPixels();
-
- for (uint32 y = 0; y < tranposedSurface->h; ++y) {
- uint32 columnIndex = y * tranposedSurface->w;
-
- for (uint32 x = 0; x < tranposedSurface->w; ++x) {
- dest[columnIndex + x] = source[x * surface->w + y];
- }
- }
-
- return tranposedSurface;
-}
-
-} // End of namespace ZVision