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-rw-r--r--modules/image_io/pdp_sdl.c76
1 files changed, 50 insertions, 26 deletions
diff --git a/modules/image_io/pdp_sdl.c b/modules/image_io/pdp_sdl.c
index a46264b..4690230 100644
--- a/modules/image_io/pdp_sdl.c
+++ b/modules/image_io/pdp_sdl.c
@@ -43,8 +43,11 @@ TODO:
/* initial image dimensions */
-#define WINWIDTH 640
-#define WINHEIGHT 480
+//#define WINWIDTH 640
+//#define WINHEIGHT 480
+#define WINWIDTH 320
+#define WINHEIGHT 240
+
#define OVERLAYWIDTH 320
#define OVERLAYHEIGHT 240
@@ -57,18 +60,26 @@ typedef struct pdp_sdl_struct {
SDL_Overlay *x_overlay;
int x_surface_flags;
+ // current values
int x_surface_width;
int x_surface_height;
-
unsigned int x_overlay_width;
unsigned int x_overlay_height;
-
+
+ // object creation args (wanted)
+ int x_w;
+ int x_h;
t_outlet *x_outlet;
+
} t_pdp_sdl;
+
+static int pdp_sdl_open(t_pdp_sdl *x);
+#define IF_NO_OVERLAY(x) if (!pdp_sdl_open(x))
+
static t_pdp_sdl *sdl_singleton; // only one instance allowed
static void destroy_overlay(t_pdp_sdl *x) {
@@ -145,6 +156,7 @@ static void create_surface(t_pdp_sdl *x, int width, int height, int flags)
}
static void poll_events(t_pdp_sdl *x){
+ IF_NO_OVERLAY(x) { return; }
SDL_Event event;
static t_symbol *keydown=0, *keyup, *quit, *motion;
@@ -200,6 +212,8 @@ static void resize(t_pdp_sdl *x, t_floatarg fw, t_floatarg fh)
static void input_0(t_pdp_sdl *x, t_symbol *s, t_floatarg f) {
+ IF_NO_OVERLAY(x) { return; }
+
int input_packet = (int)f;
if (s == gensym("register_ro")){
int p = pdp_packet_convert_ro(input_packet, pdp_gensym("bitmap/yv12/*"));
@@ -235,7 +249,7 @@ static void input_0(t_pdp_sdl *x, t_symbol *s, t_floatarg f) {
}
else {
- pdp_post("SDL: error creating overlay");
+ PDP_ASSERT(0);
}
pdp_packet_mark_unused(p);
@@ -258,11 +272,37 @@ static void pdp_sdl_free(t_pdp_sdl *x)
t_class *pdp_sdl_class;
-void *pdp_sdl_new(t_floatarg width, t_floatarg height) {
+
+static int pdp_sdl_open(t_pdp_sdl *x){
+
+ if (x->x_overlay) return -1;
+
+ /* try to create a surface */
+ create_surface(x, x->x_w ? x->x_w : WINWIDTH, x->x_h ? x->x_h : WINHEIGHT, 0);
+ if (!x->x_surface){
+ pdp_post("Can't create surface");
+ goto error_cleanup;
+ }
+
+ /* try to create overlay */
+ check_overlay(x, OVERLAYHEIGHT, OVERLAYWIDTH);
+ if (!x->x_overlay){
+ pdp_post("Can't create overlay");
+ goto error_cleanup;
+ }
+ return -1;
+
+
+ error_cleanup:
+ pdp_sdl_free(x);
+ return 0;
+
+}
+
+
+static void *pdp_sdl_new(t_floatarg width, t_floatarg height) {
t_pdp_sdl *x;
- int w = (int)width;
- int h = (int)height;
if (sdl_singleton) {
post("Only one sdl object allowed.");
@@ -282,29 +322,13 @@ void *pdp_sdl_new(t_floatarg width, t_floatarg height) {
x->x_surface = NULL;
x->x_overlay = NULL;
+ x->x_w = (int)width;
+ x->x_h = (int)height;
x->x_outlet = outlet_new(&x->x_obj, &s_anything);
-
- /* try to create a surface */
- create_surface(x, w ? w : WINWIDTH, h ? h : WINHEIGHT, 0);
- if (!x->x_surface){
- pdp_post("Can't create surface");
- goto error_cleanup;
- }
-
- /* try to create overlay */
- check_overlay(x, 320, 240);
- if (!x->x_overlay){
- pdp_post("Can't create overlay");
- goto error_cleanup;
- }
-
return (void *)x;
- error_cleanup:
- pdp_sdl_free(x);
- return (void *)0;
}