Page MenuHomePhabricator (Chris)
Files F626855

bitmap.cpp
No OneTemporary
Actions

Authored By
Unknown
Size
3 KB
Referenced Files
None
Subscribers
None

bitmap.cpp
View Options

/* generic software implementation of various bitmap operations */
namespace Graphics{
Color Bitmap::blendColor(const Color & input) const {
return input;
}
Color TranslucentBitmap::blendColor(const Color & input) const {
return input;
}
void Bitmap::startDrawing() const {
}
void Bitmap::endDrawing() const {
}
void TranslucentBitmap::startDrawing() const {
}
void TranslucentBitmap::endDrawing() const {
}
void Bitmap::lock() const {
}
void Bitmap::unlock() const {
}
Bitmap Bitmap::scaleTo(const int width, const int height) const {
if (width == getWidth() && height == getHeight()){
return *this;
}
Bitmap scaled(width, height);
this->Stretch(scaled);
return scaled;
}
/* Filters only work for multiples of 320x240 up to 4x */
static bool filterMultiple(int width, int height, int toWidth, int toHeight){
return (toWidth == width * 2 && toHeight == height * 2) ||
(toWidth == width * 3 && toHeight == height * 3) ||
(toWidth == width * 4 && toHeight == height * 4);
}
static void closestMultipleSize(int width, int height, int toWidth, int toHeight, int * outWidth, int * outHeight){
/* If we are down-scaling then we don't need any filters */
if (toWidth < width || toHeight < height){
*outWidth = 1;
*outHeight = 1;
} else if (toWidth < width * 2 && toHeight < height * 2){
*outWidth = 1;
*outHeight = 1;
} else if (toWidth < width * 3 && toHeight < height * 3){
*outWidth = width * 2;
*outHeight = height * 2;
} else {
*outWidth = width * 3;
*outHeight = height * 3;
}
}
StretchedBitmap::StretchedBitmap(int width, int height, const Bitmap & parent, QualityFilter filter):
Bitmap(1, 1),
width(1),
height(1),
where(parent),
filter(filter),
scaleToFilter(1, 1){
if (width == parent.getWidth() && height == parent.getHeight()){
setData(parent.getData());
} else {
updateSize(width, height);
}
if (!filterMultiple(width, height, parent.getWidth(), parent.getHeight()) &&
filter != NoFilter){
int multipleWidth, multipleHeight;
closestMultipleSize(width, height, parent.getWidth(), parent.getHeight(), &multipleWidth, &multipleHeight);
scaleToFilter.updateSize(multipleWidth, multipleHeight);
}
this->width = width;
this->height = height;
}
void StretchedBitmap::start(){
}
void StretchedBitmap::finish(){
if (getData() != where.getData()){
switch (filter){
case NoFilter: Stretch(where); break;
case HqxFilter: {
if (scaleToFilter.getWidth() > 1 &&
scaleToFilter.getHeight() > 1){
StretchHqx(scaleToFilter);
scaleToFilter.Stretch(where);
} else {
StretchHqx(where);
}
break;
}
case XbrFilter: {
if (scaleToFilter.getWidth() > 1 &&
scaleToFilter.getHeight() > 1){
StretchXbr(scaleToFilter);
scaleToFilter.Stretch(where);
} else {
StretchXbr(where);
}
break;
}
}
}
}
/*
Bitmap getScreenBuffer(){
return Bitmap(GFX_X, GFX_Y);
}
*/
RestoreState::RestoreState(){
}
RestoreState::~RestoreState(){
}
TranslatedBitmap::TranslatedBitmap(int x, int y, const Bitmap & where):
Bitmap(where),
x(x),
y(y){
}
void TranslatedBitmap::BlitToScreen() const {
Bitmap::BlitToScreen(x, y);
}
TranslatedBitmap::~TranslatedBitmap(){
}
}

File Metadata

Mime Type
text/x-c++
Expires
Sun, Nov 15, 1:16 AM (1 d, 19 h)
Storage Engine
blob
Storage Format
Raw Data
Storage Handle
139437
Default Alt Text
bitmap.cpp (3 KB)

Event Timeline