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Codechange: Return screenshot viewport instead of using out parameter.

pull/13985/head
Peter Nelson 2025-03-27 18:36:24 +00:00 committed by Peter Nelson
parent f57065dd41
commit 70b4beb8e7
2 changed files with 39 additions and 38 deletions
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76
src/screenshot.cpp
View File

@ -189,34 +189,36 @@ static bool MakeSmallScreenshot(bool crashlog)
* @param t Screenshot type
* @param width the width of the screenshot, or 0 for current viewport width (needs to be 0 with SC_VIEWPORT, SC_CRASHLOG, and SC_WORLD).
* @param height the height of the screenshot, or 0 for current viewport height (needs to be 0 with SC_VIEWPORT, SC_CRASHLOG, and SC_WORLD).
* @param[out] vp Result viewport
* @return Viewport
*/
void SetupScreenshotViewport(ScreenshotType t, Viewport *vp, uint32_t width, uint32_t height)
static Viewport SetupScreenshotViewport(ScreenshotType t, uint32_t width = 0, uint32_t height = 0)
{
Viewport vp{};
switch(t) {
case SC_VIEWPORT:
case SC_CRASHLOG: {
assert(width == 0 && height == 0);
Window *w = GetMainWindow();
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;
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 = _screen.width;
vp->height = _screen.height;
vp->overlay = w->viewport->overlay;
vp.left = 0;
vp.top = 0;
vp.width = _screen.width;
vp.height = _screen.height;
vp.overlay = w->viewport->overlay;
break;
}
case SC_WORLD: {
assert(width == 0 && height == 0);
/* Determine world coordinates of screenshot */
vp->zoom = ZOOM_LVL_WORLD_SCREENSHOT;
vp.zoom = ZOOM_LVL_WORLD_SCREENSHOT;
TileIndex north_tile = _settings_game.construction.freeform_edges ? TileXY(1, 1) : TileXY(0, 0);
TileIndex south_tile{Map::Size() - 1};
@ -226,43 +228,45 @@ void SetupScreenshotViewport(ScreenshotType t, Viewport *vp, uint32_t width, uin
/* If there is a hill at the bottom don't create a large black area. */
int reclaim_height_bottom = TilePixelHeight(south_tile);
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;
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;
/* 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);
vp->overlay = nullptr;
vp.left = 0;
vp.top = 0;
vp.width = UnScaleByZoom(vp.virtual_width, vp.zoom);
vp.height = UnScaleByZoom(vp.virtual_height, vp.zoom);
vp.overlay = nullptr;
break;
}
default: {
vp->zoom = (t == SC_ZOOMEDIN) ? _settings_client.gui.zoom_min : ZOOM_LVL_VIEWPORT;
vp.zoom = (t == SC_ZOOMEDIN) ? _settings_client.gui.zoom_min : ZOOM_LVL_VIEWPORT;
Window *w = GetMainWindow();
vp->virtual_left = w->viewport->virtual_left;
vp->virtual_top = w->viewport->virtual_top;
vp.virtual_left = w->viewport->virtual_left;
vp.virtual_top = w->viewport->virtual_top;
if (width == 0 || height == 0) {
vp->virtual_width = w->viewport->virtual_width;
vp->virtual_height = w->viewport->virtual_height;
vp.virtual_width = w->viewport->virtual_width;
vp.virtual_height = w->viewport->virtual_height;
} else {
vp->virtual_width = width << vp->zoom;
vp->virtual_height = height << vp->zoom;
vp.virtual_width = width << vp.zoom;
vp.virtual_height = height << vp.zoom;
}
/* 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);
vp->overlay = nullptr;
vp.left = 0;
vp.top = 0;
vp.width = UnScaleByZoom(vp.virtual_width, vp.zoom);
vp.height = UnScaleByZoom(vp.virtual_height, vp.zoom);
vp.overlay = nullptr;
break;
}
}
return vp;
}
/**
@ -277,8 +281,7 @@ static bool MakeLargeWorldScreenshot(ScreenshotType t, uint32_t width = 0, uint3
auto provider = GetScreenshotProvider();
if (provider == nullptr) return false;
Viewport vp;
SetupScreenshotViewport(t, &vp, width, height);
Viewport vp = SetupScreenshotViewport(t, width, height);
return provider->MakeImage(MakeScreenshotName(SCREENSHOT_NAME, provider->GetName()), LargeWorldCallback, &vp, vp.width, vp.height,
BlitterFactory::GetCurrentBlitter()->GetScreenDepth(), _cur_palette.palette);
@ -352,8 +355,7 @@ static void ScreenshotConfirmationCallback(Window *, bool confirmed)
*/
void MakeScreenshotWithConfirm(ScreenshotType t)
{
Viewport vp;
SetupScreenshotViewport(t, &vp);
Viewport vp = SetupScreenshotViewport(t);
bool heightmap_or_minimap = t == SC_HEIGHTMAP || t == SC_MINIMAP;
uint64_t width = (heightmap_or_minimap ? Map::SizeX() : vp.width);

1
src/screenshot.h
View File

@ -23,7 +23,6 @@ enum ScreenshotType : uint8_t {
SC_MINIMAP, ///< Minimap screenshot.
};
void SetupScreenshotViewport(ScreenshotType t, struct Viewport *vp, uint32_t width = 0, uint32_t height = 0);
bool MakeHeightmapScreenshot(const char *filename);
void MakeScreenshotWithConfirm(ScreenshotType t);
bool MakeScreenshot(ScreenshotType t, const std::string &name, uint32_t width = 0, uint32_t height = 0);