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Force software decompression if OPENMW_DECOMPRESS_TEXTURES is set

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pull/456/head
Nikolay Kasyanov 7 years ago
parent 359f87ab9f
commit 75d79e98b9
1 changed files with 68 additions and 72 deletions
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136
components/sdlutil/sdlcursormanager.cpp
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@ -25,16 +25,15 @@
USE_GRAPHICSWINDOW()
#endif
namespace CursorDecompression
{
// macOS builds use the OSG fork that includes DXTC commit
#if OSG_VERSION_GREATER_OR_EQUAL(3, 5, 8) || defined(__APPLE__)
#define OPENMW_USE_SOFTWARE_CURSOR_DECOMPRESSION 1
static const bool DXTCSupported = true;
#else
#define OPENMW_USE_SOFTWARE_CURSOR_DECOMPRESSION 0
static const bool DXTCSupported = false;
#endif
#if !OPENMW_USE_SOFTWARE_CURSOR_DECOMPRESSION
namespace
{
class MyGraphicsContext {
public:
MyGraphicsContext(int w, int h)
@ -90,10 +89,8 @@ namespace
osg::ref_ptr<osg::GraphicsContext> _gc;
};
osg::ref_ptr<osg::Image> decompress (osg::ref_ptr<osg::Image> source, float rotDegrees)
SDLUtil::SurfaceUniquePtr hardwareDecompress (osg::ref_ptr<osg::Image> source, float rotDegrees)
{
// TODO: use software decompression once S3TC patent expires
int width = source->s();
int height = source->t();
@ -152,11 +149,55 @@ namespace
source->releaseGLObjects();
texture->releaseGLObjects();
return resultImage;
return SDLUtil::imageToSurface(resultImage, true);
}
SDLUtil::SurfaceUniquePtr softwareDecompress (osg::ref_ptr<osg::Image> source, float rotDegrees)
{
int width = source->s();
int height = source->t();
bool useAlpha = source->isImageTranslucent();
osg::ref_ptr<osg::Image> decompressedImage = new osg::Image;
decompressedImage->setFileName(source->getFileName());
decompressedImage->allocateImage(width, height, 1, useAlpha ? GL_RGBA : GL_RGB, GL_UNSIGNED_BYTE);
for (int s=0; s<width; ++s)
for (int t=0; t<height; ++t)
decompressedImage->setColor(source->getColor(s,t,0), s,t,0);
Uint32 redMask = 0x000000ff;
Uint32 greenMask = 0x0000ff00;
Uint32 blueMask = 0x00ff0000;
Uint32 alphaMask = useAlpha ? 0xff000000 : 0;
SDL_Surface *cursorSurface = SDL_CreateRGBSurfaceFrom(decompressedImage->data(),
width,
height,
decompressedImage->getPixelSizeInBits(),
decompressedImage->getRowSizeInBytes(),
redMask,
greenMask,
blueMask,
alphaMask);
SDL_Surface *targetSurface = SDL_CreateRGBSurface(0, width, height, 32, redMask, greenMask, blueMask, alphaMask);
SDL_Renderer *renderer = SDL_CreateSoftwareRenderer(targetSurface);
SDL_RenderClear(renderer);
SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "1");
SDL_Texture *cursorTexture = SDL_CreateTextureFromSurface(renderer, cursorSurface);
SDL_RenderCopyEx(renderer, cursorTexture, NULL, NULL, -rotDegrees, NULL, SDL_FLIP_VERTICAL);
SDL_DestroyTexture(cursorTexture);
SDL_FreeSurface(cursorSurface);
SDL_DestroyRenderer(renderer);
return SDLUtil::SurfaceUniquePtr(targetSurface, SDL_FreeSurface);
}
}
#endif
namespace SDLUtil
{
@ -220,77 +261,32 @@ namespace SDLUtil
#endif
}
#if OPENMW_USE_SOFTWARE_CURSOR_DECOMPRESSION
SurfaceUniquePtr decompress(osg::Image* source, int rotDegrees)
{
int width = source->s();
int height = source->t();
bool useAlpha = source->isImageTranslucent();
osg::ref_ptr<osg::Image> decompressedImage = new osg::Image;
decompressedImage->setFileName(source->getFileName());
decompressedImage->allocateImage(width, height, 1, useAlpha ? GL_RGBA : GL_RGB, GL_UNSIGNED_BYTE);
for (int s=0; s<width; ++s)
for (int t=0; t<height; ++t)
decompressedImage->setColor(source->getColor(s,t,0), s,t,0);
Uint32 redMask = 0x000000ff;
Uint32 greenMask = 0x0000ff00;
Uint32 blueMask = 0x00ff0000;
Uint32 alphaMask = useAlpha ? 0xff000000 : 0;
SDL_Surface *cursorSurface = SDL_CreateRGBSurfaceFrom(decompressedImage->data(),
width,
height,
decompressedImage->getPixelSizeInBits(),
decompressedImage->getRowSizeInBytes(),
redMask,
greenMask,
blueMask,
alphaMask);
SDL_Surface *targetSurface = SDL_CreateRGBSurface(0, width, height, 32, redMask, greenMask, blueMask, alphaMask);
SDL_Renderer *renderer = SDL_CreateSoftwareRenderer(targetSurface);
SDL_RenderClear(renderer);
SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "1");
SDL_Texture *cursorTexture = SDL_CreateTextureFromSurface(renderer, cursorSurface);
SDL_RenderCopyEx(renderer, cursorTexture, NULL, NULL, -rotDegrees, NULL, SDL_FLIP_VERTICAL);
SDL_DestroyTexture(cursorTexture);
SDL_FreeSurface(cursorSurface);
SDL_DestroyRenderer(renderer);
return SurfaceUniquePtr(targetSurface, SDL_FreeSurface);
}
#endif
void SDLCursorManager::_createCursorFromResource(const std::string& name, int rotDegrees, osg::Image* image, Uint8 hotspot_x, Uint8 hotspot_y)
{
if (mCursorMap.find(name) != mCursorMap.end())
return;
#if !OPENMW_USE_SOFTWARE_CURSOR_DECOMPRESSION
osg::ref_ptr<osg::Image> decompressed;
static bool forceSoftwareDecompression = (getenv("OPENMW_DECOMPRESS_TEXTURES") != 0);
SurfaceUniquePtr (*decompressionFunction)(osg::ref_ptr<osg::Image>, float);
if (forceSoftwareDecompression || CursorDecompression::DXTCSupported) {
decompressionFunction = CursorDecompression::softwareDecompress;
} else {
decompressionFunction = CursorDecompression::hardwareDecompress;
}
try {
decompressed = decompress(image, static_cast<float>(rotDegrees));
auto surface = decompressionFunction(image, static_cast<float>(rotDegrees));
//set the cursor and store it for later
SDL_Cursor* curs = SDL_CreateColorCursor(surface.get(), hotspot_x, hotspot_y);
mCursorMap.insert(CursorMap::value_type(std::string(name), curs));
} catch (std::exception& e) {
std::cerr << e.what() << std::endl;
std::cerr <<"Using default cursor."<<std::endl;
return;
}
auto surf = SDLUtil::imageToSurface(decompressed, true);
#else
auto surf = decompress(image, rotDegrees);
#endif
//set the cursor and store it for later
SDL_Cursor* curs = SDL_CreateColorCursor(surf.get(), hotspot_x, hotspot_y);
mCursorMap.insert(CursorMap::value_type(std::string(name), curs));
}
}

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