Ticket #7996: screenshot5.diff

scummvm/backends/sdl/sdl-common.cpp

@@ -554 +554 @@
                                 break;
                         }
 
+                        if (b == KBD_ALT && ev.key.keysym.sym == 's') {
+                                char filename[20];
+
+                                for (int n = 0;; n++) {
+                                        SDL_RWops *file;
+
+                                        sprintf(filename, "scummvm%05d.bmp", n);
+                                        file = SDL_RWFromFile(filename, "r");
+                                        if (!file)
+                                                break;
+                                        SDL_RWclose(file);
+                                }
+                                if (save_screenshot(filename))
+                                        printf("Saved '%s'\n", filename);
+                                else
+                                        printf("Could not save screenshot!\n");
+                                break;
+                        }
+
 #ifdef MACOSX
                         // On Macintosh', Cmd-Q quits
                         if ((ev.key.keysym.mod & KMOD_META) && ev.key.keysym.sym=='q') {

scummvm/backends/sdl/sdl-common.h

@@ -225 +225 @@
         virtual void load_gfx_mode() = 0;
         virtual void unload_gfx_mode() = 0;
 
+        virtual bool save_screenshot(const char *filename) = 0;
+
         void setup_icon();
         void kbd_mouse();
         void init_joystick() { _joystick = SDL_JoystickOpen(0); }

scummvm/backends/sdl/sdl.cpp

@@ -42 +42 @@
 
         virtual void load_gfx_mode();
         virtual void unload_gfx_mode();
+        virtual bool save_screenshot(const char *filename);
         void hotswap_gfx_mode();
 };
 
@@ -376 +377 @@
         return OSystem_SDL_Common::property(param, value);
 }
 
+bool OSystem_SDL::save_screenshot(const char *filename) {
+        assert(_hwscreen != NULL);
+
+        StackLock lock(_graphicsMutex, this);   // Lock the mutex until this function ends
+        SDL_SaveBMP(_hwscreen, filename);
+        return true;
+}

scummvm/backends/sdl/sdl_gl.cpp

@@ -64 +64 @@
         
         virtual void load_gfx_mode();
         virtual void unload_gfx_mode();
+        virtual bool save_screenshot(const char *filename);
         void hotswap_gfx_mode();
 };
 
@@ -668 +669 @@
 
         return OSystem_SDL_Common::property(param, value);
 }
+
+bool OSystem_SDL_OpenGL::save_screenshot(const char *filename) {
+        // FIXME: I don't know how to do this yet.
+        if (_usingOpenGL)
+                return false;
+
+        StackLock lock(_graphicsMutex, this);   // Lock the mutex until this function ends
+
+        assert(_hwscreen != NULL);
+        SDL_SaveBMP(_hwscreen, filename);
+        return true;
+}