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(svn r24805) -Codechange: Refactor determination of screenshot viewport for world screenshots.

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This commit is contained in:
frosch 2012-12-09 16:53:01 +00:00
parent edd9c0553a
commit fccf0ac84d
2 changed files with 46 additions and 42 deletions
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89
src/screenshot.cpp
View File

@ -24,6 +24,7 @@
#include "window_gui.h"
#include "window_func.h"
#include "tile_map.h"
#include "landscape.h"
#include "table/strings.h"
@ -742,49 +743,57 @@ static bool MakeSmallScreenshot(bool crashlog)
BlitterFactoryBase::GetCurrentBlitter()->GetScreenDepth(), _cur_palette.palette);
}
/** Make a zoomed-in screenshot of the currently visible area. */
static bool MakeZoomedInScreenshot(ZoomLevel zl)
/**
* Configure a ViewPort for rendering (a part of) the map into a screenshot.
* @param t Screenshot type
* @param [out] vp Result viewport
*/
void SetupScreenshotViewport(ScreenshotType t, ViewPort *vp)
{
Window *w = FindWindowById(WC_MAIN_WINDOW, 0);
ViewPort vp;
/* Determine world coordinates of screenshot */
if (t == SC_WORLD) {
vp->zoom = ZOOM_LVL_WORLD_SCREENSHOT;
vp.zoom = zl;
vp.left = w->viewport->left;
vp.top = w->viewport->top;
vp.virtual_left = w->viewport->virtual_left;
vp.virtual_top = w->viewport->virtual_top;
vp.virtual_width = w->viewport->virtual_width;
vp.width = UnScaleByZoom(vp.virtual_width, vp.zoom);
vp.virtual_height = w->viewport->virtual_height;
vp.height = UnScaleByZoom(vp.virtual_height, vp.zoom);
const ScreenshotFormat *sf = _screenshot_formats + _cur_screenshot_format;
return sf->proc(MakeScreenshotName(SCREENSHOT_NAME, sf->extension), LargeWorldCallback, &vp, vp.width, vp.height,
BlitterFactoryBase::GetCurrentBlitter()->GetScreenDepth(), _cur_palette.palette);
}
/** Make a screenshot of the whole map. */
static bool MakeWorldScreenshot()
{
ViewPort vp;
const ScreenshotFormat *sf;
TileIndex north_tile = _settings_game.construction.freeform_edges ? TileXY(1, 1) : TileXY(0, 0);
TileIndex south_tile = MapSize() - 1;
/* We need to account for a hill or high building at tile 0,0. */
int extra_height_top = TilePixelHeight(0) + 150;
int extra_height_top = TilePixelHeight(north_tile) + 150;
/* If there is a hill at the bottom don't create a large black area. */
int reclaim_height_bottom = TilePixelHeight(MapSize() - 1);
int reclaim_height_bottom = TilePixelHeight(south_tile);
vp.zoom = ZOOM_LVL_WORLD_SCREENSHOT;
vp.left = 0;
vp.top = 0;
vp.virtual_left = -(int)MapMaxX() * TILE_PIXELS * ZOOM_LVL_BASE;
vp.virtual_top = -extra_height_top * ZOOM_LVL_BASE;
vp.virtual_width = (MapMaxX() + MapMaxY()) * TILE_PIXELS;
vp.width = vp.virtual_width;
vp.virtual_height = ((MapMaxX() + MapMaxY()) * TILE_PIXELS >> 1) + extra_height_top - reclaim_height_bottom;
vp.height = vp.virtual_height;
vp->virtual_left = RemapCoords(TileX(south_tile) * TILE_SIZE, TileY(north_tile) * TILE_SIZE, 0).x;
vp->virtual_top = RemapCoords(TileX(north_tile) * TILE_SIZE, TileY(north_tile) * TILE_SIZE, extra_height_top).y;
vp->virtual_width = RemapCoords(TileX(north_tile) * TILE_SIZE, TileY(south_tile) * TILE_SIZE, 0).x - vp->virtual_left + 1;
vp->virtual_height = RemapCoords(TileX(south_tile) * TILE_SIZE, TileY(south_tile) * TILE_SIZE, reclaim_height_bottom).y - vp->virtual_top + 1;
} else {
vp->zoom = (t == SC_ZOOMEDIN) ? _settings_client.gui.zoom_min : ZOOM_LVL_VIEWPORT;
sf = _screenshot_formats + _cur_screenshot_format;
Window *w = FindWindowById(WC_MAIN_WINDOW, 0);
vp->virtual_left = w->viewport->virtual_left;
vp->virtual_top = w->viewport->virtual_top;
vp->virtual_width = w->viewport->virtual_width;
vp->virtual_height = w->viewport->virtual_height;
}
/* Compute pixel coordinates */
vp->left = 0;
vp->top = 0;
vp->width = UnScaleByZoom(vp->virtual_width, vp->zoom);
vp->height = UnScaleByZoom(vp->virtual_height, vp->zoom);
}
/**
* Make a screenshot of the map.
* @param t Screenshot type: World or viewport screenshot
* @return true on success
*/
static bool MakeLargeWorldScreenshot(ScreenshotType t)
{
ViewPort vp;
SetupScreenshotViewport(t, &vp);
const ScreenshotFormat *sf = _screenshot_formats + _cur_screenshot_format;
return sf->proc(MakeScreenshotName(SCREENSHOT_NAME, sf->extension), LargeWorldCallback, &vp, vp.width, vp.height,
BlitterFactoryBase::GetCurrentBlitter()->GetScreenDepth(), _cur_palette.palette);
}
@ -862,15 +871,9 @@ bool MakeScreenshot(ScreenshotType t, const char *name)
break;
case SC_ZOOMEDIN:
ret = MakeZoomedInScreenshot(_settings_client.gui.zoom_min);
break;
case SC_DEFAULTZOOM:
ret = MakeZoomedInScreenshot(ZOOM_LVL_VIEWPORT);
break;
case SC_WORLD:
ret = MakeWorldScreenshot();
ret = MakeLargeWorldScreenshot(t);
break;
case SC_HEIGHTMAP: {

1
src/screenshot.h
View File

@ -29,6 +29,7 @@ enum ScreenshotType {
SC_HEIGHTMAP, ///< Heightmap of the world.
};
void SetupScreenshotViewport(ScreenshotType t, struct ViewPort *vp);
bool MakeHeightmapScreenshot(const char *filename);
bool MakeScreenshot(ScreenshotType t, const char *name);