From e0baf147d655409b721e41b0e3effabd39a96b34 Mon Sep 17 00:00:00 2001
From: rodri <rgl@antares-labs.eu>
Date: Tue, 27 Feb 2024 11:29:06 +0000
Subject: have separate routines for drawing and memdrawing.

---
 fb.c       | 14 +++++++++++++-
 graphics.h |  7 ++++++-
 render.c   |  2 +-
 viewport.c | 14 ++++++++++++++
 4 files changed, 34 insertions(+), 3 deletions(-)

diff --git a/fb.c b/fb.c
index a7a5122..17496ac 100644
--- a/fb.c
+++ b/fb.c
@@ -9,7 +9,18 @@
 #include "internal.h"
 
 static void
-framebufctl_draw(Framebufctl *ctl, Memimage *dst)
+framebufctl_draw(Framebufctl *ctl, Image *dst)
+{
+	Framebuf *fb;
+
+	fb = ctl->fb[ctl->idx];
+	lock(&ctl->swplk);
+	loadimage(dst, rectaddpt(fb->r, dst->r.min), byteaddr(fb->cb, fb->r.min), bytesperline(fb->r, fb->cb->depth)*Dy(fb->r));
+	unlock(&ctl->swplk);
+}
+
+static void
+framebufctl_memdraw(Framebufctl *ctl, Memimage *dst)
 {
 	lock(&ctl->swplk);
 	memimagedraw(dst, dst->r, ctl->fb[ctl->idx]->cb, ZP, nil, ZP, SoverD);
@@ -67,6 +78,7 @@ mkfbctl(Rectangle r)
 	fc->fb[0] = mkfb(r);
 	fc->fb[1] = mkfb(r);
 	fc->draw = framebufctl_draw;
+	fc->memdraw = framebufctl_memdraw;
 	fc->swap = framebufctl_swap;
 	fc->reset = framebufctl_reset;
 	return fc;
diff --git a/graphics.h b/graphics.h
index e98ae9a..1e04c13 100644
--- a/graphics.h
+++ b/graphics.h
@@ -39,6 +39,7 @@ struct Vertex
 	Color c;	/* shading color */
 	Point2 uv;	/* texture coordinate */
 
+	/* TODO these attributes should be replaced by a hash table */
 	double intensity;
 	Point3 pos;
 };
@@ -147,7 +148,8 @@ struct Framebufctl
 	uint idx;		/* front buffer index */
 	Lock swplk;
 
-	void (*draw)(Framebufctl*, Memimage*);
+	void (*draw)(Framebufctl*, Image*);
+	void (*memdraw)(Framebufctl*, Memimage*);
 	void (*swap)(Framebufctl*);
 	void (*reset)(Framebufctl*);
 };
@@ -156,6 +158,9 @@ struct Viewport
 {
 	RFrame;
 	Framebufctl *fbctl;
+
+	void (*draw)(Viewport*, Image*);
+	void (*memdraw)(Viewport*, Memimage*);
 };
 
 struct Camera
diff --git a/render.c b/render.c
index d4e63ac..8f3a41e 100644
--- a/render.c
+++ b/render.c
@@ -434,7 +434,7 @@ shaderunit(void *arg)
 			t[0][i].c.r = (*ep)->mtl != nil? (*ep)->mtl->Kd.r: 1;
 			t[0][i].c.g = (*ep)->mtl != nil? (*ep)->mtl->Kd.g: 1;
 			t[0][i].c.b = (*ep)->mtl != nil? (*ep)->mtl->Kd.b: 1;
-			t[0][i].c.a = /*(*ep)->mtl != nil? (*ep)->mtl->d:*/ 1;
+			t[0][i].c.a = 1;
 		}
 
 		vsp.v = &t[0][0];
diff --git a/viewport.c b/viewport.c
index 81e1653..0e9b9c5 100644
--- a/viewport.c
+++ b/viewport.c
@@ -8,6 +8,18 @@
 #include "graphics.h"
 #include "internal.h"
 
+static void
+viewport_draw(Viewport *v, Image *dst)
+{
+	v->fbctl->draw(v->fbctl, dst);
+}
+
+static void
+viewport_memdraw(Viewport *v, Memimage *dst)
+{
+	v->fbctl->memdraw(v->fbctl, dst);
+}
+
 Viewport *
 mkviewport(Rectangle r)
 {
@@ -18,6 +30,8 @@ mkviewport(Rectangle r)
 	v->bx = Vec2(1,0);
 	v->by = Vec2(0,1);
 	v->fbctl = mkfbctl(r);
+	v->draw = viewport_draw;
+	v->memdraw = viewport_memdraw;
 	return v;
 }
 
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