/************************************************************************** * * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. * All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sub license, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial portions * of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * **************************************************************************/ /* * Authors: * Keith Whitwell * Brian Paul */ #include "st_context.h" #include "st_atom.h" #include "st_cb_fbo.h" #include "pipe/p_context.h" #include "cso_cache/cso_context.h" /** * Update framebuffer state (color, depth, stencil, etc. buffers) * XXX someday: separate draw/read buffers. */ static void update_framebuffer_state( struct st_context *st ) { struct pipe_framebuffer_state *framebuffer = &st->state.framebuffer; struct gl_framebuffer *fb = st->ctx->DrawBuffer; struct st_renderbuffer *strb; GLuint i; memset(framebuffer, 0, sizeof(*framebuffer)); framebuffer->width = fb->Width; framebuffer->height = fb->Height; /* Examine Mesa's ctx->DrawBuffer->_ColorDrawBuffers state * to determine which surfaces to draw to */ framebuffer->num_cbufs = fb->_NumColorDrawBuffers[0]; for (i = 0; i < framebuffer->num_cbufs; i++) { strb = st_renderbuffer(fb->_ColorDrawBuffers[0][i]); assert(strb->surface); framebuffer->cbufs[i] = strb->surface; } strb = st_renderbuffer(fb->Attachment[BUFFER_DEPTH].Renderbuffer); if (strb) { strb = st_renderbuffer(strb->Base.Wrapped); assert(strb->surface); framebuffer->zsbuf = strb->surface; } else { strb = st_renderbuffer(fb->Attachment[BUFFER_STENCIL].Renderbuffer); if (strb) { strb = st_renderbuffer(strb->Base.Wrapped); assert(strb->surface); framebuffer->zsbuf = strb->surface; } } cso_set_framebuffer(st->cso_context, framebuffer); if (fb->_ColorDrawBufferMask[0] & BUFFER_BIT_FRONT_LEFT) { if (st->frontbuffer_status == FRONT_STATUS_COPY_OF_BACK) { /* XXX copy back buf to front? */ } /* we're assuming we'll really draw to the front buffer */ st->frontbuffer_status = FRONT_STATUS_DIRTY; } } const struct st_tracked_state st_update_framebuffer = { .name = "st_update_framebuffer", .dirty = { .mesa = _NEW_BUFFERS, .st = 0, }, .update = update_framebuffer_state };