nouveau: Use swizzled textures & render targets on nv40 when possible.

1 files changed, 32 insertions, 1 deletions

diff --git a/src/gallium/drivers/nv40/nv40_miptree.c b/src/gallium/drivers/nv40/nv40_miptree.c
index f321b72149..6516bff4b8 100644
--- a/src/gallium/drivers/nv40/nv40_miptree.c
+++ b/src/gallium/drivers/nv40/nv40_miptree.c
@@ -65,9 +65,32 @@ nv40_miptree_create(struct pipe_screen *pscreen, const struct pipe_texture *pt)
 	mt->base = *pt;
 	mt->base.refcount = 1;
 	mt->base.screen = pscreen;
+	mt->shadow_tex = NULL;
+	mt->shadow_surface = NULL;
 
 	nv40_miptree_layout(mt);
 
+	/* Swizzled textures must be POT */
+	if (pt->width[0] & (pt->width[0] - 1) ||
+	    pt->height[0] & (pt->height[0] - 1))
+		mt->base.tex_usage |= NOUVEAU_TEXTURE_USAGE_LINEAR;
+	else
+	if (pt->tex_usage & (PIPE_TEXTURE_USAGE_PRIMARY |
+	                     PIPE_TEXTURE_USAGE_DISPLAY_TARGET))
+		mt->base.tex_usage |= NOUVEAU_TEXTURE_USAGE_LINEAR;
+	else {
+		switch (pt->format) {
+		/* TODO: Figure out which formats can be swizzled */
+		case PIPE_FORMAT_A8R8G8B8_UNORM:
+		case PIPE_FORMAT_X8R8G8B8_UNORM:
+		/* XXX: Re-enable when SIFM size limits are fixed */
+		/*case PIPE_FORMAT_R16_SNORM:*/
+			break;
+		default:
+			mt->base.tex_usage |= NOUVEAU_TEXTURE_USAGE_LINEAR;
+		}
+	}
+
 	mt->buffer = ws->buffer_create(ws, 256,
 				       PIPE_BUFFER_USAGE_PIXEL |
 				       NOUVEAU_BUFFER_USAGE_TEXTURE,
@@ -91,13 +114,18 @@ nv40_miptree_release(struct pipe_screen *pscreen, struct pipe_texture **ppt)
 	if (--pt->refcount)
 		return;
 
-
 	pipe_buffer_reference(pscreen, &mt->buffer, NULL);
 	for (l = 0; l <= pt->last_level; l++) {
 		if (mt->level[l].image_offset)
 			FREE(mt->level[l].image_offset);
 	}
 
+	if (mt->shadow_tex) {
+		assert(mt->shadow_surface);
+		pscreen->tex_surface_release(pscreen, &mt->shadow_surface);
+		nv40_miptree_release(pscreen, &mt->shadow_tex);
+	}
+
 	FREE(mt);
 }
 
@@ -125,6 +153,9 @@ nv40_miptree_surface_new(struct pipe_screen *pscreen, struct pipe_texture *pt,
 	ps->status = PIPE_SURFACE_STATUS_DEFINED;
 	ps->refcount = 1;
 	ps->winsys = pscreen->winsys;
+	ps->face = face;
+	ps->level = level;
+	ps->zslice = zslice;
 
 	if (pt->target == PIPE_TEXTURE_CUBE) {
 		ps->offset = mt->level[level].image_offset[face];