diff options
Diffstat (limited to 'mesalib/src/mesa/state_tracker/st_cb_fbo.c')
-rw-r--r-- | mesalib/src/mesa/state_tracker/st_cb_fbo.c | 97 |
1 files changed, 73 insertions, 24 deletions
diff --git a/mesalib/src/mesa/state_tracker/st_cb_fbo.c b/mesalib/src/mesa/state_tracker/st_cb_fbo.c index 20894825f..70baa9965 100644 --- a/mesalib/src/mesa/state_tracker/st_cb_fbo.c +++ b/mesalib/src/mesa/state_tracker/st_cb_fbo.c @@ -389,6 +389,72 @@ st_bind_framebuffer(struct gl_context *ctx, GLenum target, /** + * Create or update the pipe_surface of a FBO renderbuffer. + * This is usually called after st_finalize_texture. + */ +void +st_update_renderbuffer_surface(struct st_context *st, + struct st_renderbuffer *strb) +{ + struct pipe_context *pipe = st->pipe; + struct pipe_resource *resource = strb->texture; + int rtt_width = strb->Base.Width; + int rtt_height = strb->Base.Height; + int rtt_depth = strb->Base.Depth; + enum pipe_format format = st->ctx->Color.sRGBEnabled ? resource->format : + util_format_linear(resource->format); + unsigned first_layer, last_layer, level; + + if (resource->target == PIPE_TEXTURE_1D_ARRAY) { + rtt_depth = rtt_height; + rtt_height = 1; + } + + /* find matching mipmap level size */ + for (level = 0; level <= resource->last_level; level++) { + if (u_minify(resource->width0, level) == rtt_width && + u_minify(resource->height0, level) == rtt_height && + (resource->target != PIPE_TEXTURE_3D || + u_minify(resource->depth0, level) == rtt_depth)) { + break; + } + } + assert(level <= resource->last_level); + + /* determine the layer bounds */ + if (strb->rtt_layered) { + first_layer = 0; + last_layer = util_max_layer(strb->texture, level); + } + else { + first_layer = + last_layer = strb->rtt_face + strb->rtt_slice; + } + + if (!strb->surface || + strb->surface->texture->nr_samples != strb->Base.NumSamples || + strb->surface->format != format || + strb->surface->texture != resource || + strb->surface->width != rtt_width || + strb->surface->height != rtt_height || + strb->surface->u.tex.level != level || + strb->surface->u.tex.first_layer != first_layer || + strb->surface->u.tex.last_layer != last_layer) { + /* create a new pipe_surface */ + struct pipe_surface surf_tmpl; + memset(&surf_tmpl, 0, sizeof(surf_tmpl)); + surf_tmpl.format = format; + surf_tmpl.u.tex.level = level; + surf_tmpl.u.tex.first_layer = first_layer; + surf_tmpl.u.tex.last_layer = last_layer; + + pipe_surface_reference(&strb->surface, NULL); + + strb->surface = pipe->create_surface(pipe, resource, &surf_tmpl); + } +} + +/** * Called by ctx->Driver.RenderTexture */ static void @@ -401,8 +467,6 @@ st_render_texture(struct gl_context *ctx, struct gl_renderbuffer *rb = att->Renderbuffer; struct st_renderbuffer *strb = st_renderbuffer(rb); struct pipe_resource *pt; - struct st_texture_object *stObj; - struct pipe_surface surf_tmpl; if (!st_finalize_texture(ctx, pipe, att->Texture)) return; @@ -410,31 +474,16 @@ st_render_texture(struct gl_context *ctx, pt = st_get_texobj_resource(att->Texture); assert(pt); - /* get the texture for the texture object */ - stObj = st_texture_object(att->Texture); - /* point renderbuffer at texobject */ - strb->rtt = stObj; - strb->rtt_level = att->TextureLevel; + strb->is_rtt = TRUE; strb->rtt_face = att->CubeMapFace; strb->rtt_slice = att->Zoffset; - - pipe_resource_reference( &strb->texture, pt ); + strb->rtt_layered = att->Layered; + pipe_resource_reference(&strb->texture, pt); pipe_surface_release(pipe, &strb->surface); - assert(strb->rtt_level <= strb->texture->last_level); - - /* new surface for rendering into the texture */ - memset(&surf_tmpl, 0, sizeof(surf_tmpl)); - surf_tmpl.format = ctx->Color.sRGBEnabled - ? strb->texture->format : util_format_linear(strb->texture->format); - surf_tmpl.u.tex.level = strb->rtt_level; - surf_tmpl.u.tex.first_layer = strb->rtt_face + strb->rtt_slice; - surf_tmpl.u.tex.last_layer = strb->rtt_face + strb->rtt_slice; - strb->surface = pipe->create_surface(pipe, - strb->texture, - &surf_tmpl); + st_update_renderbuffer_surface(st, strb); strb->Base.Format = st_pipe_format_to_mesa_format(pt->format); @@ -464,7 +513,7 @@ st_finish_render_texture(struct gl_context *ctx, struct gl_renderbuffer *rb) if (!strb) return; - strb->rtt = NULL; + strb->is_rtt = FALSE; /* restore previous framebuffer state */ st_invalidate_state(ctx, _NEW_BUFFERS); @@ -706,8 +755,8 @@ st_MapRenderbuffer(struct gl_context *ctx, map = pipe_transfer_map(pipe, strb->texture, - strb->rtt_level, - strb->rtt_face + strb->rtt_slice, + strb->surface->u.tex.level, + strb->surface->u.tex.first_layer, usage, x, y2, w, h, &strb->transfer); if (map) { if (invert) { |