update to current atomic RFC

remove cursor and atomic event..

.gitignore

@@ -1,2 +1,3 @@
+plane
 *~
 *.o

Makefile

@@ -1,5 +1,5 @@
 CFLAGS+=-O0 -g3 $(shell pkg-config --cflags libdrm gbm gl egl)
-CPPFLAGS+=-Wall -Wextra
+CPPFLAGS+=-Wall
 LDFLAGS+=
 LDLIBS+=$(shell pkg-config --libs libdrm gbm gl egl) -lm
 

common.h

@@ -32,7 +32,6 @@
 
 struct my_surface {
 	struct surface base;
-	int pending_events;
 	EGLSurface egl_surface;
 	GLuint fbo[2];
 	GLuint tex[2];

gutils.c

@@ -38,23 +38,23 @@ bool surface_has_free_buffers(struct surface *s)
 	return gbm_surface_has_free_buffers(s->gbm_surface);
 }
 
-struct buffer *surface_find_buffer_by_fb_id(struct surface *s, uint32_t fb_id)
+void surface_retire_buffers(struct surface *s, int fence)
 {
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(s->buffers); i++) {
-		if (s->buffers[i].fb_id == fb_id) {
-			assert(s->buffers[i].ref >= 0);
-			return &s->buffers[i];
+		struct buffer *b = &s->buffers[i];
+		if (b->bo && b->fence && (b->fence < fence)) {
+			surface_buffer_put_fb(s, b);
 		}
 	}
 
-	return NULL;
 }
 
 void surface_buffer_put_fb(struct surface *s, struct buffer *b)
 {
 	b->ref--;
+	b->fence = 0;
 	gbm_surface_release_buffer(s->gbm_surface, b->bo);
 }
 
@@ -86,7 +86,7 @@ struct buffer *surface_get_front(int fd, struct surface *s)
 	}
 
 	for (i = 0; i < ARRAY_SIZE(s->buffers); i++) {
-		if (s->buffers[i].ref == 0) {
+		if (!s->buffers[i].bo) {
 			b = &s->buffers[i];
 			break;
 		}

gutils.h

@@ -29,6 +29,7 @@
 
 struct buffer {
 	int fd;
+	int fence;
 	unsigned int size;
 	uint32_t offset[4];
 	uint32_t stride[4];
@@ -59,7 +60,7 @@ struct gbm_bo;
 
 bool surface_has_free_buffers(struct surface *s);
 
-struct buffer *surface_find_buffer_by_fb_id(struct surface *s, uint32_t fb_id);
+void surface_retire_buffers(struct surface *s, int fence);
 
 void surface_buffer_put_fb(struct surface *s, struct buffer *b);