IDriverDependantBitmap* prepare_screen_for_transition_in()
{
if (saved_viewport_bitmap == NULL)
quit("Crossfade: buffer is null attempting transition");
saved_viewport_bitmap = ReplaceBitmapWithSupportedFormat(saved_viewport_bitmap);
const Rect &viewport = play.GetMainViewport();
if (saved_viewport_bitmap->GetHeight() < viewport.GetHeight())
{
Bitmap *enlargedBuffer = BitmapHelper::CreateBitmap(saved_viewport_bitmap->GetWidth(), viewport.GetHeight(), saved_viewport_bitmap->GetColorDepth());
enlargedBuffer->Blit(saved_viewport_bitmap, 0, 0, 0, (viewport.GetHeight() - saved_viewport_bitmap->GetHeight()) / 2, saved_viewport_bitmap->GetWidth(), saved_viewport_bitmap->GetHeight());
delete saved_viewport_bitmap;
saved_viewport_bitmap = enlargedBuffer;
}
else if (saved_viewport_bitmap->GetHeight() > viewport.GetHeight())
{
Bitmap *clippedBuffer = BitmapHelper::CreateBitmap(saved_viewport_bitmap->GetWidth(), viewport.GetHeight(), saved_viewport_bitmap->GetColorDepth());
clippedBuffer->Blit(saved_viewport_bitmap, 0, (saved_viewport_bitmap->GetHeight() - viewport.GetHeight()) / 2, 0, 0, saved_viewport_bitmap->GetWidth(), saved_viewport_bitmap->GetHeight());
delete saved_viewport_bitmap;
saved_viewport_bitmap = clippedBuffer;
}
saved_viewport_bitmap->Acquire();
IDriverDependantBitmap *ddb = gfxDriver->CreateDDBFromBitmap(saved_viewport_bitmap, false);
return ddb;
}
// a simple function that applies a blur effect on a bitmap
// - Bitmap &bmp: the input bitmap
// - int radius: blur radius
void MAS::Cursor::Blur(Bitmap &bmp, int radius) {
int x, y;
int i, j;
int r,g,b;
int div = (2*radius+1)*(2*radius+1);
Bitmap tmp2(bmp.w(), bmp.h(), Bitmap::MEMORY);
tmp2.Clear(Color::transparent);
bmp.Blit(tmp2, 0, 0, 0, 0, bmp.w(), bmp.h());
Bitmap tmp(Size(bmp.w() + 2*radius, bmp.h() + 2*radius), Bitmap::MEMORY);
tmp.Clear(Color::black);
bmp.Blit(tmp, Point(0,0), Point(radius, radius), bmp.size());
for (y=radius; y<tmp.h()-radius; y++) {
for (x=radius; x<tmp.w()-radius; x++) {
r = g = b = 0;
for (j=-radius; j<=radius; j++) {
for (i=-radius; i<=radius; i++) {
Color col = tmp.Getpixel(Point(x+i, y+j));
r += col.r();
g += col.g();
b += col.b();
}
}
tmp2.Putpixel(Point(x-radius, y-radius), Color(r/div, g/div, b/div));
}
}
bmp.Clear();
tmp2.Blit(bmp, 0, 0, 0, 0, bmp.w(), bmp.h());
}
void show_preload () {
// ** Do the preload graphic if available
color temppal[256];
Bitmap *splashsc = BitmapHelper::CreateRawObjectOwner( load_pcx("preload.pcx",temppal) );
if (splashsc != NULL) {
if (splashsc->GetColorDepth() == 8)
wsetpalette(0,255,temppal);
Bitmap *screen_bmp = BitmapHelper::GetScreenBitmap();
Bitmap *tsc = BitmapHelper::CreateBitmap(splashsc->GetWidth(),splashsc->GetHeight(),screen_bmp->GetColorDepth());
tsc->Blit(splashsc,0,0,0,0,tsc->GetWidth(),tsc->GetHeight());
screen_bmp->Clear();
screen_bmp->StretchBlt(tsc, RectWH(0, 0, scrnwid,scrnhit), Common::kBitmap_Transparency);
gfxDriver->ClearDrawList();
if (!gfxDriver->UsesMemoryBackBuffer())
{
IDriverDependantBitmap *ddb = gfxDriver->CreateDDBFromBitmap(screen_bmp, false, true);
gfxDriver->DrawSprite(0, 0, ddb);
render_to_screen(screen_bmp, 0, 0);
gfxDriver->DestroyDDB(ddb);
}
else
render_to_screen(screen_bmp, 0, 0);
delete splashsc;
delete tsc;
platform->Delay(500);
}
}
void DrawingSurface_DrawSurface(ScriptDrawingSurface* target, ScriptDrawingSurface* source, int translev) {
if ((translev < 0) || (translev > 99))
quit("!DrawingSurface.DrawSurface: invalid parameter (transparency must be 0-99)");
Bitmap *ds = target->StartDrawing();
Bitmap *surfaceToDraw = source->GetBitmapSurface();
if (surfaceToDraw == target->GetBitmapSurface())
quit("!DrawingSurface.DrawSurface: cannot draw surface onto itself");
if (translev == 0) {
// just draw it over the top, no transparency
ds->Blit(surfaceToDraw, 0, 0, 0, 0, surfaceToDraw->GetWidth(), surfaceToDraw->GetHeight());
target->FinishedDrawing();
return;
}
if (surfaceToDraw->GetColorDepth() <= 8)
quit("!DrawingSurface.DrawSurface: 256-colour surfaces cannot be drawn transparently");
// Draw it transparently
GfxUtil::DrawSpriteWithTransparency(ds, surfaceToDraw, 0, 0,
GfxDef::Trans100ToAlpha255(translev));
target->FinishedDrawing();
}
ScriptDynamicSprite* DynamicSprite_CreateFromDrawingSurface(ScriptDrawingSurface *sds, int x, int y, int width, int height)
{
int gotSlot = spriteset.findFreeSlot();
if (gotSlot <= 0)
return NULL;
// use DrawingSurface resolution
sds->MultiplyCoordinates(&x, &y);
sds->MultiplyCoordinates(&width, &height);
Bitmap *ds = sds->StartDrawing();
if ((x < 0) || (y < 0) || (x + width > ds->GetWidth()) || (y + height > ds->GetHeight()))
quit("!DynamicSprite.CreateFromDrawingSurface: requested area is outside the surface");
int colDepth = ds->GetColorDepth();
Bitmap *newPic = BitmapHelper::CreateBitmap(width, height, colDepth);
if (newPic == NULL)
return NULL;
newPic->Blit(ds, x, y, 0, 0, width, height);
sds->FinishedDrawingReadOnly();
add_dynamic_sprite(gotSlot, newPic, (sds->hasAlphaChannel != 0));
ScriptDynamicSprite *new_spr = new ScriptDynamicSprite(gotSlot);
return new_spr;
}
// RawRestoreScreen: copy backup bitmap back to screen; we
// deliberately don't free the Bitmap *cos they can multiple restore
// and it gets freed on room exit anyway
void RawRestoreScreen() {
if (raw_saved_screen == NULL) {
debug_log("RawRestoreScreen: unable to restore, since the screen hasn't been saved previously.");
return;
}
Bitmap *deston = thisroom.ebscene[play.bg_frame];
deston->Blit(raw_saved_screen, 0, 0, 0, 0, deston->GetWidth(), deston->GetHeight());
invalidate_screen();
mark_current_background_dirty();
}
void polygonLoop( Bitmap& pointer )
{
LineStrip polygon;
Line line( 0,0,0,0 );
global_pressed = false;
global_released = false;
bool drawing = false;
while( !keypressed())
{
Canvas::Fill( Rgba::BLACK );
polygon.Draw( Rgba::WHITE );
if( drawing )
{
line.end = Vec2D( mouse_x, mouse_y );
line.Draw( Rgba::WHITE );
}
pointer.Blit( mouse_x, mouse_y );
Canvas::Refresh();
if( global_pressed )
{
if( !polygon.GetNumOfVertices())
polygon.AddToEnd( Vec2D( mouse_x, mouse_y ));
line.start = polygon.GetVertex( polygon.GetNumOfVertices() - 1 );
global_pressed = false;
drawing = true;
}
if( global_released )
{
polygon.AddToEnd( Vec2D( mouse_x, mouse_y ));
global_released = false;
drawing = false;
}
rest(1);
}
}
IDriverDependantBitmap* prepare_screen_for_transition_in()
{
if (temp_virtual == NULL)
quit("Crossfade: buffer is null attempting transition");
temp_virtual = gfxDriver->ConvertBitmapToSupportedColourDepth(temp_virtual);
if (temp_virtual->GetHeight() < scrnhit)
{
Bitmap *enlargedBuffer = BitmapHelper::CreateBitmap(temp_virtual->GetWidth(), scrnhit, temp_virtual->GetColorDepth());
enlargedBuffer->Blit(temp_virtual, 0, 0, 0, (scrnhit - temp_virtual->GetHeight()) / 2, temp_virtual->GetWidth(), temp_virtual->GetHeight());
delete temp_virtual;
temp_virtual = enlargedBuffer;
}
else if (temp_virtual->GetHeight() > scrnhit)
{
Bitmap *clippedBuffer = BitmapHelper::CreateBitmap(temp_virtual->GetWidth(), scrnhit, temp_virtual->GetColorDepth());
clippedBuffer->Blit(temp_virtual, 0, (temp_virtual->GetHeight() - scrnhit) / 2, 0, 0, temp_virtual->GetWidth(), temp_virtual->GetHeight());
delete temp_virtual;
temp_virtual = clippedBuffer;
}
temp_virtual->Acquire();
IDriverDependantBitmap *ddb = gfxDriver->CreateDDBFromBitmap(temp_virtual, false);
return ddb;
}
IDriverDependantBitmap* prepare_screen_for_transition_in()
{
if (temp_virtual == NULL)
quit("Crossfade: buffer is null attempting transition");
temp_virtual = ReplaceBitmapWithSupportedFormat(temp_virtual);
if (temp_virtual->GetHeight() < play.viewport.GetHeight())
{
Bitmap *enlargedBuffer = BitmapHelper::CreateBitmap(temp_virtual->GetWidth(), play.viewport.GetHeight(), temp_virtual->GetColorDepth());
enlargedBuffer->Blit(temp_virtual, 0, 0, 0, (play.viewport.GetHeight() - temp_virtual->GetHeight()) / 2, temp_virtual->GetWidth(), temp_virtual->GetHeight());
delete temp_virtual;
temp_virtual = enlargedBuffer;
}
else if (temp_virtual->GetHeight() > play.viewport.GetHeight())
{
Bitmap *clippedBuffer = BitmapHelper::CreateBitmap(temp_virtual->GetWidth(), play.viewport.GetHeight(), temp_virtual->GetColorDepth());
clippedBuffer->Blit(temp_virtual, 0, (temp_virtual->GetHeight() - play.viewport.GetHeight()) / 2, 0, 0, temp_virtual->GetWidth(), temp_virtual->GetHeight());
delete temp_virtual;
temp_virtual = clippedBuffer;
}
temp_virtual->Acquire();
IDriverDependantBitmap *ddb = gfxDriver->CreateDDBFromBitmap(temp_virtual, false);
return ddb;
}
// creates a cursor shadow from a cursor bitmap
void MAS::Cursor::MakeShadow() {
int x, y, i;
Point pOffset(PADDING, PADDING);
Point pOrigin(0,0);
for (i=0; i<frameCount; i++) {
Bitmap bmp;
if (MAS::Settings::mouseShadow) {
bmp.Create(Size(sprite[i]->w() + 2*PADDING, sprite[i]->h() + 2*PADDING), Bitmap::MEMORY);
// create the alpha channel for the shadow by masking the cursor and bluring the results
Bitmap alpha(bmp.size(), Bitmap::MEMORY);
alpha.Clear(Color::transparent);
sprite[i]->Blit(alpha, pOrigin, pOffset, sprite[i]->size());
for (y=0; y<bmp.h(); y++) {
for (x=0; x<bmp.w(); x++) {
Point p(x,y);
if (alpha.Getpixel(p) == Color::transparent)
alpha.Putpixel(p, Color::black);
else
alpha.Putpixel(p, Color::white);
}
}
Blur(alpha, PADDING);
// write the alpha channel to the shadow bitmap
for (y=0; y<bmp.h(); y++) {
for (x=0; x<bmp.w(); x++) {
Point p(x,y);
bmp.Putpixel(p, Color(shadowColor.r(), shadowColor.g(), shadowColor.b(), alpha.Getpixel(p).r()));
}
}
alpha.Destroy();
}
else {
bmp.Create(1, 1);
bmp.Putpixel(0, 0, Color::transparent);
}
Bitmap *result = new Bitmap(bmp.w(), bmp.h());
bmp.Blit(*result, 0, 0, 0, 0, bmp.w(), bmp.h());
shadow.push_back(result);
}
}
void DynamicSprite_ChangeCanvasSize(ScriptDynamicSprite *sds, int width, int height, int x, int y)
{
if (sds->slot == 0)
quit("!DynamicSprite.ChangeCanvasSize: sprite has been deleted");
if ((width < 1) || (height < 1))
quit("!DynamicSprite.ChangeCanvasSize: new size is too small");
multiply_up_coordinates(&x, &y);
multiply_up_coordinates(&width, &height);
Bitmap *newPic = BitmapHelper::CreateTransparentBitmap(width, height, spriteset[sds->slot]->GetColorDepth());
// blit it into the enlarged image
newPic->Blit(spriteset[sds->slot], 0, 0, x, y, spritewidth[sds->slot], spriteheight[sds->slot]);
delete spriteset[sds->slot];
// replace the bitmap in the sprite set
add_dynamic_sprite(sds->slot, newPic, (game.spriteflags[sds->slot] & SPF_ALPHACHANNEL) != 0);
}
Bitmap *wnewblock(Common::Bitmap *src, int x1, int y1, int x2, int y2)
{
Bitmap *tempbitm;
int twid = (x2 - x1) + 1, thit = (y2 - y1) + 1;
if (twid < 1)
twid = 1;
if (thit < 1)
thit = 1;
tempbitm = BitmapHelper::CreateBitmap(twid, thit);
if (tempbitm == NULL)
return NULL;
tempbitm->Blit(src, x1, y1, 0, 0, tempbitm->GetWidth(), tempbitm->GetHeight());
return tempbitm;
}
void DynamicSprite_Crop(ScriptDynamicSprite *sds, int x1, int y1, int width, int height) {
if ((width < 1) || (height < 1))
quit("!DynamicSprite.Crop: co-ordinates do not make sense");
if (sds->slot == 0)
quit("!DynamicSprite.Crop: sprite has been deleted");
multiply_up_coordinates(&x1, &y1);
multiply_up_coordinates(&width, &height);
if ((width > spritewidth[sds->slot]) || (height > spriteheight[sds->slot]))
quit("!DynamicSprite.Crop: requested to crop an area larger than the source");
Bitmap *newPic = BitmapHelper::CreateBitmap(width, height, spriteset[sds->slot]->GetColorDepth());
// blit it cropped
newPic->Blit(spriteset[sds->slot], x1, y1, 0, 0, newPic->GetWidth(), newPic->GetHeight());
delete spriteset[sds->slot];
// replace the bitmap in the sprite set
add_dynamic_sprite(sds->slot, newPic, (game.spriteflags[sds->slot] & SPF_ALPHACHANNEL) != 0);
}
ScriptDynamicSprite* DynamicSprite_CreateFromBackground(int frame, int x1, int y1, int width, int height) {
if (frame == SCR_NO_VALUE) {
frame = play.bg_frame;
}
else if ((frame < 0) || (frame >= thisroom.num_bscenes))
quit("!DynamicSprite.CreateFromBackground: invalid frame specified");
if (x1 == SCR_NO_VALUE) {
x1 = 0;
y1 = 0;
width = play.room_width;
height = play.room_height;
}
else if ((x1 < 0) || (y1 < 0) || (width < 1) || (height < 1) ||
(x1 + width > play.room_width) || (y1 + height > play.room_height))
quit("!DynamicSprite.CreateFromBackground: invalid co-ordinates specified");
multiply_up_coordinates(&x1, &y1);
multiply_up_coordinates(&width, &height);
int gotSlot = spriteset.findFreeSlot();
if (gotSlot <= 0)
return NULL;
// create a new sprite as a copy of the existing one
Bitmap *newPic = BitmapHelper::CreateBitmap(width, height, thisroom.ebscene[frame]->GetColorDepth());
if (newPic == NULL)
return NULL;
newPic->Blit(thisroom.ebscene[frame], x1, y1, 0, 0, width, height);
// replace the bitmap in the sprite set
add_dynamic_sprite(gotSlot, newPic);
ScriptDynamicSprite *new_spr = new ScriptDynamicSprite(gotSlot);
GlobalReturnValue.SetDynamicObject(new_spr, new_spr);
return new_spr;
}
void draw_text_window_and_bar(Bitmap **text_window_ds, bool should_free_ds,
int*xins,int*yins,int*xx,int*yy,int*wii,color_t *set_text_color,int ovrheight, int ifnum) {
draw_text_window(text_window_ds, should_free_ds, xins, yins, xx, yy, wii, set_text_color, ovrheight, ifnum);
if ((topBar.wantIt) && (text_window_ds && *text_window_ds)) {
// top bar on the dialog window with character's name
// create an enlarged window, then free the old one
Bitmap *ds = *text_window_ds;
Bitmap *newScreenop = BitmapHelper::CreateBitmap(ds->GetWidth(), ds->GetHeight() + topBar.height, game.GetColorDepth());
newScreenop->Blit(ds, 0, 0, 0, topBar.height, ds->GetWidth(), ds->GetHeight());
delete *text_window_ds;
*text_window_ds = newScreenop;
ds = *text_window_ds;
// draw the top bar
color_t draw_color = ds->GetCompatibleColor(play.top_bar_backcolor);
ds->FillRect(Rect(0, 0, ds->GetWidth() - 1, topBar.height - 1), draw_color);
if (play.top_bar_backcolor != play.top_bar_bordercolor) {
// draw the border
draw_color = ds->GetCompatibleColor(play.top_bar_bordercolor);
for (int j = 0; j < play.top_bar_borderwidth; j++)
ds->DrawRect(Rect(j, j, ds->GetWidth() - (j + 1), topBar.height - (j + 1)), draw_color);
}
// draw the text
int textx = (ds->GetWidth() / 2) - wgettextwidth_compensate(topBar.text, topBar.font) / 2;
color_t text_color = ds->GetCompatibleColor(play.top_bar_textcolor);
wouttext_outline(ds, textx, play.top_bar_borderwidth + 1, topBar.font, text_color, topBar.text);
// don't draw it next time
topBar.wantIt = 0;
// adjust the text Y position
yins[0] += topBar.height;
}
else if (topBar.wantIt)
topBar.wantIt = 0;
}
ScriptDynamicSprite* DynamicSprite_CreateFromExistingSprite(int slot, int preserveAlphaChannel) {
int gotSlot = spriteset.findFreeSlot();
if (gotSlot <= 0)
return NULL;
if (!spriteset.doesSpriteExist(slot))
quitprintf("DynamicSprite.CreateFromExistingSprite: sprite %d does not exist", slot);
// create a new sprite as a copy of the existing one
Bitmap *newPic = BitmapHelper::CreateBitmap(spritewidth[slot], spriteheight[slot], spriteset[slot]->GetColorDepth());
if (newPic == NULL)
return NULL;
newPic->Blit(spriteset[slot], 0, 0, 0, 0, spritewidth[slot], spriteheight[slot]);
bool hasAlpha = (preserveAlphaChannel) && ((game.spriteflags[slot] & SPF_ALPHACHANNEL) != 0);
// replace the bitmap in the sprite set
add_dynamic_sprite(gotSlot, newPic, hasAlpha);
ScriptDynamicSprite *new_spr = new ScriptDynamicSprite(gotSlot);
GlobalReturnValue.SetDynamicObject(new_spr, new_spr);
return new_spr;
}
void Text::Draw(Bitmap& dest, int x, int y, int color, std::string const& text, Text::Alignment align) {
if (text.length() == 0) return;
FontRef font = dest.GetFont();
Rect dst_rect = Font::Default()->GetSize(text);
switch (align) {
case Text::AlignCenter:
dst_rect.x = x - dst_rect.width / 2;
break;
case Text::AlignRight:
dst_rect.x = x - dst_rect.width;
break;
case Text::AlignLeft:
dst_rect.x = x;
break;
default:
assert(false);
}
dst_rect.y = y;
dst_rect.width += 1;
dst_rect.height += 1; // Need place for shadow
if (dst_rect.IsOutOfBounds(dest.GetWidth(), dest.GetHeight())) return;
BitmapRef text_surface; // Complete text will be on this surface
text_surface = Bitmap::Create(dst_rect.width, dst_rect.height, true);
text_surface->SetTransparentColor(dest.GetTransparentColor());
text_surface->Clear();
// Load the system file for the shadow and text color
BitmapRef system = Cache::System(Data::system.system_name);
// Load the exfont-file
BitmapRef exfont = Cache::Exfont();
// Get the Shadow color
Color shadow_color(Cache::system_info.sh_color);
// If shadow is pure black, increase blue channel
// so it doesn't become transparent
if ((shadow_color.red == 0) &&
(shadow_color.green == 0) &&
(shadow_color.blue == 0) ) {
if (text_surface->bytes() >= 3) {
shadow_color.blue++;
} else {
shadow_color.blue += 8;
}
}
// Where to draw the next glyph (x pos)
int next_glyph_pos = 0;
// The current char is an exfont
bool is_exfont = false;
// This loops always renders a single char, color blends it and then puts
// it onto the text_surface (including the drop shadow)
for (boost::u8_to_u32_iterator<std::string::const_iterator>
c(text.begin(), text.begin(), text.end()),
end(text.end(), text.begin(), text.end()); c != end; ++c) {
Rect next_glyph_rect(next_glyph_pos, 0, 0, 0);
boost::u8_to_u32_iterator<std::string::const_iterator> next_c_it = boost::next(c);
uint32_t const next_c = std::distance(c, end) > 1? *next_c_it : 0;
// ExFont-Detection: Check for A-Z or a-z behind the $
if (*c == '$' && std::isalpha(next_c)) {
int exfont_value = -1;
// Calculate which exfont shall be rendered
if (islower(next_c)) {
exfont_value = 26 + next_c - 'a';
} else if (isupper(next_c)) {
exfont_value = next_c - 'A';
} else {
assert(false);
}
is_exfont = true;
BitmapRef mask = Bitmap::Create(12, 12, true);
// Get exfont from graphic
Rect const rect_exfont((exfont_value % 13) * 12, (exfont_value / 13) * 12, 12, 12);
// Create a mask
mask->Clear();
mask->Blit(0, 0, *exfont, rect_exfont, 255);
// Get color region from system graphic
Rect clip_system(8+16*(color%10), 4+48+16*(color/10), 6, 12);
BitmapRef char_surface = Bitmap::Create(mask->GetWidth(), mask->GetHeight(), true);
char_surface->SetTransparentColor(dest.GetTransparentColor());
char_surface->Clear();
// Blit gradient color background (twice because of full glyph)
char_surface->Blit(0, 0, *system, clip_system, 255);
char_surface->Blit(6, 0, *system, clip_system, 255);
// Blit mask onto background
char_surface->MaskBlit(0, 0, *mask, mask->GetRect());
BitmapRef char_shadow = Bitmap::Create(mask->GetWidth(), mask->GetHeight(), true);
char_shadow->SetTransparentColor(dest.GetTransparentColor());
char_shadow->Clear();
// Blit solid color background
char_shadow->Fill(shadow_color);
// Blit mask onto background
char_shadow->MaskBlit(0, 0, *mask, mask->GetRect());
// Blit first shadow and then text
text_surface->Blit(next_glyph_rect.x + 1, next_glyph_rect.y + 1, *char_shadow, char_shadow->GetRect(), 255);
text_surface->Blit(next_glyph_rect.x, next_glyph_rect.y, *char_surface, char_surface->GetRect(), 255);
} else { // Not ExFont, draw normal text
font->Render(*text_surface, next_glyph_rect.x, next_glyph_rect.y, *system, color, *c);
}
// If it's a full size glyph, add the size of a half-size glypth twice
if (is_exfont) {
is_exfont = false;
next_glyph_pos += 12;
// Skip the next character
++c;
} else {
std::string const glyph(c.base(), next_c_it.base());
next_glyph_pos += Font::Default()->GetSize(glyph).width;
}
}
BitmapRef text_bmp = Bitmap::Create(*text_surface, text_surface->GetRect());
Rect src_rect(0, 0, dst_rect.width, dst_rect.height);
int iy = dst_rect.y;
if (dst_rect.height > text_bmp->GetHeight()) {
iy += ((dst_rect.height - text_bmp->GetHeight()) / 2);
}
int ix = dst_rect.x;
dest.Blit(ix, iy, *text_bmp, src_rect, 255);
}