images: make images array variable

We can now have as many images as memory permits. Also updated N.fnp: - green 1 toggles between pac man and ghost (as before) - green 2 toggles between pac man pleiades - green 8 toggles between ghost and pac man (as before)
m-labs · Feb 16, 2012 · 44ad1f6 · 44ad1f6
1 parent efcfe22
commit 44ad1f6
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Showing 4 changed files with 33 additions and 20 deletions.
diff --git a/experimental/N.fnp b/experimental/N.fnp
@@ -1,4 +1,4 @@
-imagefiles=pacman.jpg, ghost.jpg
+imagefiles=pacman.jpg, ghost.jpg, pleiades.jpg
 decay=0.6
 image1_a=0.6
 image2_a=0.6
@@ -8,6 +8,7 @@ midi "Faderfox LV3" {
 	fad8 = fader(8, 7);
 
 	green1 = button(1, 16);
+	green2 = button(2, 16);
 	green8 = button(8, 16);
 
 	joy1x = pot(9, 1);
@@ -20,6 +21,7 @@ fad1 = range(fad1);
 fad8 = range(fad8);
 
 green1 = button(green1);
+green2 = button(green2);
 green8 = button(green8);
 
 joy1x = range(joy1x);
@@ -30,7 +32,7 @@ joy2y = range(joy2y);
 per_frame:
 	image1_zoom = fad1*5+0.1;
 	image2_zoom = fad8*6+0.1;
-	image1_index = green1;
+	image1_index = green1+2*green2;
 	image2_index = !green8;
 
 	sx = 1.06;

diff --git a/src/compiler/compiler.c b/src/compiler/compiler.c
@@ -411,11 +411,18 @@ static const char *assign_image_name(struct parser_comm *comm,
 	struct compiler_sc *sc = comm->u.sc;
 	char *totalname;
 	struct image *img;
-#endif
 
-	if(number > IMAGE_COUNT)
-		return strdup("image number out of bounds");
-#ifndef STANDALONE
+	if(number > sc->p->n_images) {
+		int i;
+
+		sc->p->images = realloc(sc->p->images,
+		    number*sizeof(struct image));
+		for(i = sc->p->n_images; i != number; i++) {
+			sc->p->images[i].pixbuf = NULL;
+			sc->p->images[i].filename = NULL;
+		}
+		sc->p->n_images = number;
+	}
 	number--;
 
 	if(*name == '/')
@@ -472,7 +479,6 @@ struct patch *patch_compile(const char *basedir, const char *patch_code,
 {
 	struct compiler_sc *sc;
 	struct patch *p;
-	int i;
 
 	sc = malloc(sizeof(struct compiler_sc));
 	if(sc == NULL) {
@@ -485,10 +491,8 @@ struct patch *patch_compile(const char *basedir, const char *patch_code,
 		free(sc);
 		return NULL;
 	}
-	for(i=0;i<IMAGE_COUNT;i++) {
-		sc->p->images[i].pixbuf = NULL;
-		sc->p->images[i].filename = NULL;
-	}
+	sc->p->images = NULL;
+	sc->p->n_images = 0;
 	sc->p->ref = 1;
 	sc->p->require = 0;
 	sc->p->original = NULL;
@@ -561,18 +565,23 @@ struct patch *patch_copy(struct patch *p)
 {
 	struct patch *new_patch;
 	struct image *img;
+	int i;
 
 	new_patch = malloc(sizeof(struct patch));
 	assert(new_patch != NULL);
 	memcpy(new_patch, p, sizeof(struct patch));
 	new_patch->ref = 1;
 	new_patch->original = p;
 	new_patch->next = NULL;
-	for(img = new_patch->images;
-	    img != new_patch->images+IMAGE_COUNT; img++) {
-		if(img->filename)
-			img->filename = strdup(img->filename);
-		pixbuf_inc_ref(img->pixbuf);
+	if(p->images) {
+		new_patch->images = malloc(p->n_images*sizeof(struct image));
+		for(i = 0; i != p->n_images; i++) {
+			img = new_patch->images+i;
+			*img = p->images[i];
+			if(img->filename)
+				img->filename = strdup(img->filename);
+			pixbuf_inc_ref(img->pixbuf);
+		}
 	}
 	new_patch->stim = stim_get(p->stim);
 	if(p->stim)
@@ -587,10 +596,11 @@ void patch_free(struct patch *p)
 	assert(p->ref);
 	if(--p->ref);
 		return;
-	for(img = p->images; img != p->images+IMAGE_COUNT; img++) {
+	for(img = p->images; img != p->images+p->n_images; img++) {
 		pixbuf_dec_ref(img->pixbuf);
 		free((void *) img->filename);
 	}
+	free(p->images);
 	stim_put(p->stim);
 	free(p);
 }
@@ -600,7 +610,7 @@ struct patch *patch_refresh(struct patch *p)
 	struct image *img;
 	struct pixbuf *pixbuf;
 
-	for(img = p->images; img != p->images+IMAGE_COUNT; img++) {
+	for(img = p->images; img != p->images+p->n_images; img++) {
 		if(!img->pixbuf)
 			continue;
 		pixbuf = pixbuf_update(img->pixbuf);

diff --git a/src/compiler/compiler.h b/src/compiler/compiler.h
@@ -230,7 +230,8 @@ struct image {
 
 struct patch {
 	/* per-frame */
-	struct image images[IMAGE_COUNT];	/* images used in this patch */
+	struct image *images;	/* images used in this patch */
+	int n_images;		/* number of images */
 	float pfv_initial[COMP_PFV_COUNT];	/* patch initial conditions */
 	int pfv_allocation[COMP_PFV_COUNT];	/* where per-frame variables
 						   are mapped in PFPU regf,

diff --git a/src/renderer/eval.c b/src/renderer/eval.c
@@ -317,7 +317,7 @@ static rtems_task eval_task(rtems_task_argument argument)
 		for(i=0;i<IMAGE_COUNT;i++) {
 			int n = frd->image_index[i];
 
-			frd->images[i] = n >= 0 && n < IMAGE_COUNT ?
+			frd->images[i] = n >= 0 && n < p->n_images ?
 			    p->images[n].pixbuf : NULL;
 		}