Author: cazfi
Date: Sun Mar 1 02:04:45 2015
New Revision: 28332
URL: http://svn.gna.org/viewcvs/freeciv?rev=28332&view=rev
Log:
Guard sdl2-client rendering from main surface to screen with dirtyness
indication
See patch #5867
Modified:
trunk/client/gui-sdl2/graphics.c
Modified: trunk/client/gui-sdl2/graphics.c
URL:
http://svn.gna.org/viewcvs/freeciv/trunk/client/gui-sdl2/graphics.c?rev=28332&r1=28331&r2=28332&view=diff
==============================================================================
--- trunk/client/gui-sdl2/graphics.c (original)
+++ trunk/client/gui-sdl2/graphics.c Sun Mar 1 02:04:45 2015
@@ -56,6 +56,8 @@
static SDL_Surface *main_surface;
+static bool render_dirty = TRUE;
+
/**************************************************************************
Allocate new gui_layer.
**************************************************************************/
@@ -206,6 +208,7 @@
int screen_blit(SDL_Surface *src, SDL_Rect *srcrect, SDL_Rect *dstrect,
unsigned char alpha_mod)
{
+ render_dirty = TRUE;
return alphablit(src, srcrect, main_surface, dstrect, alpha_mod);
}
@@ -735,11 +738,15 @@
**************************************************************************/
void update_main_screen(void)
{
- SDL_UpdateTexture(Main.maintext, NULL,
- main_surface->pixels, main_surface->pitch);
- SDL_RenderClear(Main.renderer);
- SDL_RenderCopy(Main.renderer, Main.maintext, NULL, NULL);
- SDL_RenderPresent(Main.renderer);
+ if (render_dirty) {
+ SDL_UpdateTexture(Main.maintext, NULL,
+ main_surface->pixels, main_surface->pitch);
+ SDL_RenderClear(Main.renderer);
+ SDL_RenderCopy(Main.renderer, Main.maintext, NULL, NULL);
+ SDL_RenderPresent(Main.renderer);
+
+ render_dirty = FALSE;
+ }
}
/**************************************************************************
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