static bool writeBMP(const Common::UString &filename, const byte *data,
int width, int height) {
if ((width <= 0) || (height <= 0) || !data)
return false;
Common::DumpFile file;
if (!file.open(filename))
return false;
// The pitch of the output has to be divisible by 4, so
// we output zeroes to make the pitch that far.
int extraDataSize = width & 3;
int imageSize = height * (width + extraDataSize) * 3;
// Main bitmap header
file.writeByte('B');
file.writeByte('M');
file.writeUint32LE(14 + 40 + imageSize); // Size
file.writeUint32LE(0); // reserved
file.writeUint32LE(14 + 40); // Image offset after both headers
// v3 header
file.writeUint32LE(40);
file.writeUint32LE(width);
file.writeUint32LE(height);
file.writeUint16LE(1);
file.writeUint16LE(24);
file.writeUint32LE(0);
file.writeUint32LE(imageSize);
file.writeUint32LE(72);
file.writeUint32LE(72);
file.writeUint32LE(0);
file.writeUint32LE(0);
if (extraDataSize != 0) {
// Dump, making sure the pitch is correct
while (height--) {
file.write(data, width * 3);
// Ensure we're on a 4-byte boundary
for (int i = 0; i < extraDataSize; i++)
file.writeByte(0);
data += width * 3;
}
} else {
// Dump directly (can do all at once here because the data
// is already good for BMP output)
file.write(data, width * height * 3);
}
if (!file.flush() || file.err())
return false;
file.close();
return true;
}
bool Console::cmdDumpImage(int argc, const char **argv) {
if (argc != 2) {
debugPrintf("Use %s <TGA/TGZ name> to dump a Z-Vision TGA/TGZ image into a regular BMP image\n", argv[0]);
return true;
}
Common::String fileName = argv[1];
if (!fileName.hasSuffix(".tga")) {
debugPrintf("%s is not an image file", argv[1]);
}
Common::File f;
if (!_engine->getSearchManager()->openFile(f, argv[1])) {
warning("File not found: %s", argv[1]);
return true;
}
Graphics::Surface surface;
_engine->getRenderManager()->readImageToSurface(argv[1], surface, false);
// Open file
Common::DumpFile out;
fileName.setChar('b', fileName.size() - 3);
fileName.setChar('m', fileName.size() - 2);
fileName.setChar('p', fileName.size() - 1);
out.open(fileName);
// Write BMP header
out.writeByte('B');
out.writeByte('M');
out.writeUint32LE(surface.h * surface.pitch + 54);
out.writeUint32LE(0);
out.writeUint32LE(54);
out.writeUint32LE(40);
out.writeUint32LE(surface.w);
out.writeUint32LE(surface.h);
out.writeUint16LE(1);
out.writeUint16LE(16);
out.writeUint32LE(0);
out.writeUint32LE(0);
out.writeUint32LE(0);
out.writeUint32LE(0);
out.writeUint32LE(0);
out.writeUint32LE(0);
// Write pixel data to BMP
out.write(surface.getPixels(), surface.pitch * surface.h);
out.flush();
out.close();
surface.free();
return true;
}
void OpenGLGraphicsManager::saveScreenshot(const Common::String &filename) const {
const uint width = _outputScreenWidth;
const uint height = _outputScreenHeight;
// A line of a BMP image must have a size divisible by 4.
// We calculate the padding bytes needed here.
// Since we use a 3 byte per pixel mode, we can use width % 4 here, since
// it is equal to 4 - (width * 3) % 4. (4 - (width * Bpp) % 4, is the
// usual way of computing the padding bytes required).
const uint linePaddingSize = width % 4;
const uint lineSize = width * 3 + linePaddingSize;
// Allocate memory for screenshot
uint8 *pixels = new uint8[lineSize * height];
// Get pixel data from OpenGL buffer
GLCALL(glReadPixels(0, 0, width, height, GL_RGB, GL_UNSIGNED_BYTE, pixels));
// BMP stores as BGR. Since we can't assume that GL_BGR is supported we
// will swap the components from the RGB we read to BGR on our own.
for (uint y = height; y-- > 0;) {
uint8 *line = pixels + y * lineSize;
for (uint x = width; x > 0; --x, line += 3) {
SWAP(line[0], line[2]);
}
}
// Open file
Common::DumpFile out;
out.open(filename);
// Write BMP header
out.writeByte('B');
out.writeByte('M');
out.writeUint32LE(height * lineSize + 54);
out.writeUint32LE(0);
out.writeUint32LE(54);
out.writeUint32LE(40);
out.writeUint32LE(width);
out.writeUint32LE(height);
out.writeUint16LE(1);
out.writeUint16LE(24);
out.writeUint32LE(0);
out.writeUint32LE(0);
out.writeUint32LE(0);
out.writeUint32LE(0);
out.writeUint32LE(0);
out.writeUint32LE(0);
// Write pixel data to BMP
out.write(pixels, lineSize * height);
// Free allocated memory
delete[] pixels;
}
bool Console::cmdRawToWav(int argc, const char **argv) {
if (argc != 3) {
debugPrintf("Use %s <rawFilePath> <wavFileName> to dump a .RAW file to .WAV\n", argv[0]);
return true;
}
Common::File file;
if (!_engine->getSearchManager()->openFile(file, argv[1])) {
warning("File not found: %s", argv[1]);
return true;
}
Audio::AudioStream *audioStream = makeRawZorkStream(argv[1], _engine);
Common::DumpFile output;
output.open(argv[2]);
output.writeUint32BE(MKTAG('R', 'I', 'F', 'F'));
output.writeUint32LE(file.size() * 2 + 36);
output.writeUint32BE(MKTAG('W', 'A', 'V', 'E'));
output.writeUint32BE(MKTAG('f', 'm', 't', ' '));
output.writeUint32LE(16);
output.writeUint16LE(1);
uint16 numChannels;
if (audioStream->isStereo()) {
numChannels = 2;
output.writeUint16LE(2);
} else {
numChannels = 1;
output.writeUint16LE(1);
}
output.writeUint32LE(audioStream->getRate());
output.writeUint32LE(audioStream->getRate() * numChannels * 2);
output.writeUint16LE(numChannels * 2);
output.writeUint16LE(16);
output.writeUint32BE(MKTAG('d', 'a', 't', 'a'));
output.writeUint32LE(file.size() * 2);
int16 *buffer = new int16[file.size()];
audioStream->readBuffer(buffer, file.size());
#ifndef SCUMM_LITTLE_ENDIAN
for (int i = 0; i < file.size(); ++i)
buffer[i] = TO_LE_16(buffer[i]);
#endif
output.write(buffer, file.size() * 2);
delete[] buffer;
return true;
}
void convertRawToWav(const Common::String &inputFile, ZVision *engine, const Common::String &outputFile) {
Common::File file;
if (!file.open(inputFile))
return;
Audio::AudioStream *audioStream = makeRawZorkStream(inputFile, engine);
Common::DumpFile output;
output.open(outputFile);
output.writeUint32BE(MKTAG('R', 'I', 'F', 'F'));
output.writeUint32LE(file.size() * 2 + 36);
output.writeUint32BE(MKTAG('W', 'A', 'V', 'E'));
output.writeUint32BE(MKTAG('f', 'm', 't', ' '));
output.writeUint32LE(16);
output.writeUint16LE(1);
uint16 numChannels;
if (audioStream->isStereo()) {
numChannels = 2;
output.writeUint16LE(2);
} else {
numChannels = 1;
output.writeUint16LE(1);
}
output.writeUint32LE(audioStream->getRate());
output.writeUint32LE(audioStream->getRate() * numChannels * 2);
output.writeUint16LE(numChannels * 2);
output.writeUint16LE(16);
output.writeUint32BE(MKTAG('d', 'a', 't', 'a'));
output.writeUint32LE(file.size() * 2);
int16 *buffer = new int16[file.size()];
audioStream->readBuffer(buffer, file.size());
output.write(buffer, file.size() * 2);
delete[] buffer;
}
bool OpenGLGraphicsManager::getGLPixelFormat(const Graphics::PixelFormat &pixelFormat, GLenum &glIntFormat, GLenum &glFormat, GLenum &glType) const {
#ifdef SCUMM_LITTLE_ENDIAN
if (pixelFormat == Graphics::PixelFormat(4, 8, 8, 8, 8, 0, 8, 16, 24)) { // ABGR8888
#else
if (pixelFormat == Graphics::PixelFormat(4, 8, 8, 8, 8, 24, 16, 8, 0)) { // RGBA8888
#endif
glIntFormat = GL_RGBA;
glFormat = GL_RGBA;
glType = GL_UNSIGNED_BYTE;
return true;
} else if (pixelFormat == Graphics::PixelFormat(2, 5, 6, 5, 0, 11, 5, 0, 0)) { // RGB565
glIntFormat = GL_RGB;
glFormat = GL_RGB;
glType = GL_UNSIGNED_SHORT_5_6_5;
return true;
} else if (pixelFormat == Graphics::PixelFormat(2, 5, 5, 5, 1, 11, 6, 1, 0)) { // RGBA5551
glIntFormat = GL_RGBA;
glFormat = GL_RGBA;
glType = GL_UNSIGNED_SHORT_5_5_5_1;
return true;
} else if (pixelFormat == Graphics::PixelFormat(2, 4, 4, 4, 4, 12, 8, 4, 0)) { // RGBA4444
glIntFormat = GL_RGBA;
glFormat = GL_RGBA;
glType = GL_UNSIGNED_SHORT_4_4_4_4;
return true;
#ifndef USE_GLES
#ifdef SCUMM_LITTLE_ENDIAN
} else if (pixelFormat == Graphics::PixelFormat(4, 8, 8, 8, 8, 24, 16, 8, 0)) { // RGBA8888
glIntFormat = GL_RGBA;
glFormat = GL_RGBA;
glType = GL_UNSIGNED_INT_8_8_8_8;
return true;
#endif
} else if (pixelFormat == Graphics::PixelFormat(2, 5, 5, 5, 0, 10, 5, 0, 0)) { // RGB555
// GL_BGRA does not exist in every GLES implementation so should not be configured if
// USE_GLES is set.
glIntFormat = GL_RGB;
glFormat = GL_BGRA;
glType = GL_UNSIGNED_SHORT_1_5_5_5_REV;
return true;
} else if (pixelFormat == Graphics::PixelFormat(4, 8, 8, 8, 8, 16, 8, 0, 24)) { // ARGB8888
glIntFormat = GL_RGBA;
glFormat = GL_BGRA;
glType = GL_UNSIGNED_INT_8_8_8_8_REV;
return true;
} else if (pixelFormat == Graphics::PixelFormat(2, 4, 4, 4, 4, 8, 4, 0, 12)) { // ARGB4444
glIntFormat = GL_RGBA;
glFormat = GL_BGRA;
glType = GL_UNSIGNED_SHORT_4_4_4_4_REV;
return true;
#ifdef SCUMM_BIG_ENDIAN
} else if (pixelFormat == Graphics::PixelFormat(4, 8, 8, 8, 8, 0, 8, 16, 24)) { // ABGR8888
glIntFormat = GL_RGBA;
glFormat = GL_RGBA;
glType = GL_UNSIGNED_INT_8_8_8_8_REV;
return true;
#endif
} else if (pixelFormat == Graphics::PixelFormat(4, 8, 8, 8, 8, 8, 16, 24, 0)) { // BGRA8888
glIntFormat = GL_RGBA;
glFormat = GL_BGRA;
glType = GL_UNSIGNED_INT_8_8_8_8;
return true;
} else if (pixelFormat == Graphics::PixelFormat(2, 5, 6, 5, 0, 0, 5, 11, 0)) { // BGR565
glIntFormat = GL_RGB;
glFormat = GL_BGR;
glType = GL_UNSIGNED_SHORT_5_6_5;
return true;
} else if (pixelFormat == Graphics::PixelFormat(2, 5, 5, 5, 1, 1, 6, 11, 0)) { // BGRA5551
glIntFormat = GL_RGBA;
glFormat = GL_BGRA;
glType = GL_UNSIGNED_SHORT_5_5_5_1;
return true;
} else if (pixelFormat == Graphics::PixelFormat(2, 4, 4, 4, 4, 0, 4, 8, 12)) { // ABGR4444
glIntFormat = GL_RGBA;
glFormat = GL_RGBA;
glType = GL_UNSIGNED_SHORT_4_4_4_4_REV;
return true;
} else if (pixelFormat == Graphics::PixelFormat(2, 4, 4, 4, 4, 4, 8, 12, 0)) { // BGRA4444
glIntFormat = GL_RGBA;
glFormat = GL_BGRA;
glType = GL_UNSIGNED_SHORT_4_4_4_4;
return true;
#endif
} else {
return false;
}
}
frac_t OpenGLGraphicsManager::getDesiredGameScreenAspect() const {
const uint width = _currentState.gameWidth;
const uint height = _currentState.gameHeight;
if (_currentState.aspectRatioCorrection) {
// In case we enable aspect ratio correction we force a 4/3 ratio.
// But just for 320x200 and 640x400 games, since other games do not need
// this.
if ((width == 320 && height == 200) || (width == 640 && height == 400)) {
return intToFrac(4) / 3;
}
}
return intToFrac(width) / height;
}
void OpenGLGraphicsManager::recalculateDisplayArea() {
if (!_gameScreen || _outputScreenHeight == 0) {
return;
}
const frac_t outputAspect = intToFrac(_outputScreenWidth) / _outputScreenHeight;
const frac_t desiredAspect = getDesiredGameScreenAspect();
_displayWidth = _outputScreenWidth;
_displayHeight = _outputScreenHeight;
// Adjust one dimension for mantaining the aspect ratio.
if (outputAspect < desiredAspect) {
_displayHeight = intToFrac(_displayWidth) / desiredAspect;
} else if (outputAspect > desiredAspect) {
_displayWidth = fracToInt(_displayHeight * desiredAspect);
}
// We center the screen in the middle for now.
_displayX = (_outputScreenWidth - _displayWidth ) / 2;
_displayY = (_outputScreenHeight - _displayHeight) / 2;
}
void OpenGLGraphicsManager::updateCursorPalette() {
if (!_cursor || !_cursor->hasPalette()) {
return;
}
if (_cursorPaletteEnabled) {
_cursor->setPalette(0, 256, _cursorPalette);
} else {
_cursor->setPalette(0, 256, _gamePalette);
}
// We remove all alpha bits from the palette entry of the color key.
// This makes sure its properly handled as color key.
const Graphics::PixelFormat &hardwareFormat = _cursor->getHardwareFormat();
const uint32 aMask = (0xFF >> hardwareFormat.aLoss) << hardwareFormat.aShift;
if (hardwareFormat.bytesPerPixel == 2) {
uint16 *palette = (uint16 *)_cursor->getPalette() + _cursorKeyColor;
*palette &= ~aMask;
} else if (hardwareFormat.bytesPerPixel == 4) {
uint32 *palette = (uint32 *)_cursor->getPalette() + _cursorKeyColor;
*palette &= ~aMask;
} else {
warning("OpenGLGraphicsManager::updateCursorPalette: Unsupported pixel depth %d", hardwareFormat.bytesPerPixel);
}
}
void OpenGLGraphicsManager::recalculateCursorScaling() {
if (!_cursor || !_gameScreen) {
return;
}
// By default we use the unscaled versions.
_cursorHotspotXScaled = _cursorHotspotX;
_cursorHotspotYScaled = _cursorHotspotY;
_cursorWidthScaled = _cursor->getWidth();
_cursorHeightScaled = _cursor->getHeight();
// In case scaling is actually enabled we will scale the cursor according
// to the game screen.
if (!_cursorDontScale) {
const frac_t screenScaleFactorX = intToFrac(_displayWidth) / _gameScreen->getWidth();
const frac_t screenScaleFactorY = intToFrac(_displayHeight) / _gameScreen->getHeight();
_cursorHotspotXScaled = fracToInt(_cursorHotspotXScaled * screenScaleFactorX);
_cursorWidthScaled = fracToInt(_cursorWidthScaled * screenScaleFactorX);
_cursorHotspotYScaled = fracToInt(_cursorHotspotYScaled * screenScaleFactorY);
_cursorHeightScaled = fracToInt(_cursorHeightScaled * screenScaleFactorY);
}
}
#ifdef USE_OSD
const Graphics::Font *OpenGLGraphicsManager::getFontOSD() {
return FontMan.getFontByUsage(Graphics::FontManager::kLocalizedFont);
}
#endif
void OpenGLGraphicsManager::saveScreenshot(const Common::String &filename) const {
const uint width = _outputScreenWidth;
const uint height = _outputScreenHeight;
// A line of a BMP image must have a size divisible by 4.
// We calculate the padding bytes needed here.
// Since we use a 3 byte per pixel mode, we can use width % 4 here, since
// it is equal to 4 - (width * 3) % 4. (4 - (width * Bpp) % 4, is the
// usual way of computing the padding bytes required).
const uint linePaddingSize = width % 4;
const uint lineSize = width * 3 + linePaddingSize;
// Allocate memory for screenshot
uint8 *pixels = new uint8[lineSize * height];
// Get pixel data from OpenGL buffer
GLCALL(glReadPixels(0, 0, width, height, GL_RGB, GL_UNSIGNED_BYTE, pixels));
// BMP stores as BGR. Since we can't assume that GL_BGR is supported we
// will swap the components from the RGB we read to BGR on our own.
for (uint y = height; y-- > 0;) {
uint8 *line = pixels + y * lineSize;
for (uint x = width; x > 0; --x, line += 3) {
SWAP(line[0], line[2]);
}
}
// Open file
Common::DumpFile out;
out.open(filename);
// Write BMP header
out.writeByte('B');
out.writeByte('M');
out.writeUint32LE(height * lineSize + 54);
out.writeUint32LE(0);
out.writeUint32LE(54);
out.writeUint32LE(40);
out.writeUint32LE(width);
out.writeUint32LE(height);
out.writeUint16LE(1);
out.writeUint16LE(24);
out.writeUint32LE(0);
out.writeUint32LE(0);
out.writeUint32LE(0);
out.writeUint32LE(0);
out.writeUint32LE(0);
out.writeUint32LE(0);
// Write pixel data to BMP
out.write(pixels, lineSize * height);
// Free allocated memory
delete[] pixels;
}
} // End of namespace OpenGL
bool OpenGLGraphicsManager::getGLPixelFormat(const Graphics::PixelFormat &pixelFormat, GLenum &glIntFormat, GLenum &glFormat, GLenum &glType) const {
#ifdef SCUMM_LITTLE_ENDIAN
if (pixelFormat == Graphics::PixelFormat(4, 8, 8, 8, 8, 0, 8, 16, 24)) { // ABGR8888
#else
if (pixelFormat == Graphics::PixelFormat(4, 8, 8, 8, 8, 24, 16, 8, 0)) { // RGBA8888
#endif
glIntFormat = GL_RGBA;
glFormat = GL_RGBA;
glType = GL_UNSIGNED_BYTE;
return true;
} else if (pixelFormat == Graphics::PixelFormat(2, 5, 6, 5, 0, 11, 5, 0, 0)) { // RGB565
glIntFormat = GL_RGB;
glFormat = GL_RGB;
glType = GL_UNSIGNED_SHORT_5_6_5;
return true;
} else if (pixelFormat == Graphics::PixelFormat(2, 5, 5, 5, 1, 11, 6, 1, 0)) { // RGBA5551
glIntFormat = GL_RGBA;
glFormat = GL_RGBA;
glType = GL_UNSIGNED_SHORT_5_5_5_1;
return true;
} else if (pixelFormat == Graphics::PixelFormat(2, 4, 4, 4, 4, 12, 8, 4, 0)) { // RGBA4444
glIntFormat = GL_RGBA;
glFormat = GL_RGBA;
glType = GL_UNSIGNED_SHORT_4_4_4_4;
return true;
#if !USE_FORCED_GLES && !USE_FORCED_GLES2
// The formats below are not supported by every GLES implementation.
// Thus, we do not mark them as supported when a GLES context is setup.
} else if (isGLESContext()) {
return false;
#ifdef SCUMM_LITTLE_ENDIAN
} else if (pixelFormat == Graphics::PixelFormat(4, 8, 8, 8, 8, 24, 16, 8, 0)) { // RGBA8888
glIntFormat = GL_RGBA;
glFormat = GL_RGBA;
glType = GL_UNSIGNED_INT_8_8_8_8;
return true;
#endif
} else if (pixelFormat == Graphics::PixelFormat(2, 5, 5, 5, 0, 10, 5, 0, 0)) { // RGB555
glIntFormat = GL_RGB;
glFormat = GL_BGRA;
glType = GL_UNSIGNED_SHORT_1_5_5_5_REV;
return true;
} else if (pixelFormat == Graphics::PixelFormat(2, 4, 4, 4, 4, 8, 4, 0, 12)) { // ARGB4444
glIntFormat = GL_RGBA;
glFormat = GL_BGRA;
glType = GL_UNSIGNED_SHORT_4_4_4_4_REV;
return true;
#ifdef SCUMM_BIG_ENDIAN
} else if (pixelFormat == Graphics::PixelFormat(4, 8, 8, 8, 8, 0, 8, 16, 24)) { // ABGR8888
glIntFormat = GL_RGBA;
glFormat = GL_RGBA;
glType = GL_UNSIGNED_INT_8_8_8_8_REV;
return true;
#endif
} else if (pixelFormat == Graphics::PixelFormat(4, 8, 8, 8, 8, 8, 16, 24, 0)) { // BGRA8888
glIntFormat = GL_RGBA;
glFormat = GL_BGRA;
glType = GL_UNSIGNED_INT_8_8_8_8;
return true;
} else if (pixelFormat == Graphics::PixelFormat(2, 5, 6, 5, 0, 0, 5, 11, 0)) { // BGR565
glIntFormat = GL_RGB;
glFormat = GL_RGB;
glType = GL_UNSIGNED_SHORT_5_6_5_REV;
return true;
} else if (pixelFormat == Graphics::PixelFormat(2, 5, 5, 5, 1, 1, 6, 11, 0)) { // BGRA5551
glIntFormat = GL_RGBA;
glFormat = GL_BGRA;
glType = GL_UNSIGNED_SHORT_5_5_5_1;
return true;
} else if (pixelFormat == Graphics::PixelFormat(2, 4, 4, 4, 4, 0, 4, 8, 12)) { // ABGR4444
glIntFormat = GL_RGBA;
glFormat = GL_RGBA;
glType = GL_UNSIGNED_SHORT_4_4_4_4_REV;
return true;
} else if (pixelFormat == Graphics::PixelFormat(2, 4, 4, 4, 4, 4, 8, 12, 0)) { // BGRA4444
glIntFormat = GL_RGBA;
glFormat = GL_BGRA;
glType = GL_UNSIGNED_SHORT_4_4_4_4;
return true;
#endif // !USE_FORCED_GLES && !USE_FORCED_GLES2
} else {
return false;
}
}
frac_t OpenGLGraphicsManager::getDesiredGameScreenAspect() const {
const uint width = _currentState.gameWidth;
const uint height = _currentState.gameHeight;
if (_currentState.aspectRatioCorrection) {
// In case we enable aspect ratio correction we force a 4/3 ratio.
// But just for 320x200 and 640x400 games, since other games do not need
// this.
if ((width == 320 && height == 200) || (width == 640 && height == 400)) {
return intToFrac(4) / 3;
}
}
return intToFrac(width) / height;
}
void OpenGLGraphicsManager::recalculateDisplayArea() {
if (!_gameScreen || _outputScreenHeight == 0) {
return;
}
const frac_t outputAspect = intToFrac(_outputScreenWidth) / _outputScreenHeight;
const frac_t desiredAspect = getDesiredGameScreenAspect();
_displayWidth = _outputScreenWidth;
_displayHeight = _outputScreenHeight;
// Adjust one dimension for mantaining the aspect ratio.
if (outputAspect < desiredAspect) {
_displayHeight = intToFrac(_displayWidth) / desiredAspect;
} else if (outputAspect > desiredAspect) {
_displayWidth = fracToInt(_displayHeight * desiredAspect);
}
// We center the screen in the middle for now.
_displayX = (_outputScreenWidth - _displayWidth ) / 2;
_displayY = (_outputScreenHeight - _displayHeight) / 2;
// Setup drawing limitation for game graphics.
// This invovles some trickery because OpenGL's viewport coordinate system
// is upside down compared to ours.
_backBuffer.setScissorBox(_displayX,
_outputScreenHeight - _displayHeight - _displayY,
_displayWidth,
_displayHeight);
// Clear the whole screen for the first three frames to remove leftovers.
_scissorOverride = 3;
// Update the cursor position to adjust for new display area.
setMousePosition(_cursorX, _cursorY);
// Force a redraw to assure screen is properly redrawn.
_forceRedraw = true;
}
void OpenGLGraphicsManager::updateCursorPalette() {
if (!_cursor || !_cursor->hasPalette()) {
return;
}
if (_cursorPaletteEnabled) {
_cursor->setPalette(0, 256, _cursorPalette);
} else {
_cursor->setPalette(0, 256, _gamePalette);
}
_cursor->setColorKey(_cursorKeyColor);
}
void OpenGLGraphicsManager::recalculateCursorScaling() {
if (!_cursor || !_gameScreen) {
return;
}
// By default we use the unscaled versions.
_cursorHotspotXScaled = _cursorHotspotX;
_cursorHotspotYScaled = _cursorHotspotY;
_cursorWidthScaled = _cursor->getWidth();
_cursorHeightScaled = _cursor->getHeight();
// In case scaling is actually enabled we will scale the cursor according
// to the game screen.
if (!_cursorDontScale) {
const frac_t screenScaleFactorX = intToFrac(_displayWidth) / _gameScreen->getWidth();
const frac_t screenScaleFactorY = intToFrac(_displayHeight) / _gameScreen->getHeight();
_cursorHotspotXScaled = fracToInt(_cursorHotspotXScaled * screenScaleFactorX);
_cursorWidthScaled = fracToInt(_cursorWidthScaled * screenScaleFactorX);
_cursorHotspotYScaled = fracToInt(_cursorHotspotYScaled * screenScaleFactorY);
_cursorHeightScaled = fracToInt(_cursorHeightScaled * screenScaleFactorY);
}
}
#ifdef USE_OSD
const Graphics::Font *OpenGLGraphicsManager::getFontOSD() {
return FontMan.getFontByUsage(Graphics::FontManager::kLocalizedFont);
}
#endif
void OpenGLGraphicsManager::saveScreenshot(const Common::String &filename) const {
const uint width = _outputScreenWidth;
const uint height = _outputScreenHeight;
// A line of a BMP image must have a size divisible by 4.
// We calculate the padding bytes needed here.
// Since we use a 3 byte per pixel mode, we can use width % 4 here, since
// it is equal to 4 - (width * 3) % 4. (4 - (width * Bpp) % 4, is the
// usual way of computing the padding bytes required).
const uint linePaddingSize = width % 4;
const uint lineSize = width * 3 + linePaddingSize;
// Allocate memory for screenshot
uint8 *pixels = new uint8[lineSize * height];
// Get pixel data from OpenGL buffer
GL_CALL(glReadPixels(0, 0, width, height, GL_RGB, GL_UNSIGNED_BYTE, pixels));
// BMP stores as BGR. Since we can't assume that GL_BGR is supported we
// will swap the components from the RGB we read to BGR on our own.
for (uint y = height; y-- > 0;) {
uint8 *line = pixels + y * lineSize;
for (uint x = width; x > 0; --x, line += 3) {
SWAP(line[0], line[2]);
}
}
// Open file
Common::DumpFile out;
out.open(filename);
// Write BMP header
out.writeByte('B');
out.writeByte('M');
out.writeUint32LE(height * lineSize + 54);
out.writeUint32LE(0);
out.writeUint32LE(54);
out.writeUint32LE(40);
out.writeUint32LE(width);
out.writeUint32LE(height);
out.writeUint16LE(1);
out.writeUint16LE(24);
out.writeUint32LE(0);
out.writeUint32LE(0);
out.writeUint32LE(0);
out.writeUint32LE(0);
out.writeUint32LE(0);
out.writeUint32LE(0);
// Write pixel data to BMP
out.write(pixels, lineSize * height);
// Free allocated memory
delete[] pixels;
}
} // End of namespace OpenGL
