/**************************************************************************
*
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright 2007 VMware, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* 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
+ * IN NO EVENT SHALL VMWARE 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 <keith@tungstengraphics.com>
+ * Keith Whitwell <keithw@vmware.com>
* Brian Paul
*/
+#include <limits.h>
+
#include "st_context.h"
#include "st_atom.h"
#include "st_cb_bitmap.h"
#include "util/u_format.h"
+/**
+ * Update framebuffer size.
+ *
+ * We need to derive pipe_framebuffer size from the bound pipe_surfaces here
+ * instead of copying gl_framebuffer size because for certain target types
+ * (like PIPE_TEXTURE_1D_ARRAY) gl_framebuffer::Height has the number of layers
+ * instead of 1.
+ */
+static void
+update_framebuffer_size(struct pipe_framebuffer_state *framebuffer,
+ struct pipe_surface *surface)
+{
+ assert(surface);
+ assert(surface->width < UINT_MAX);
+ assert(surface->height < UINT_MAX);
+ framebuffer->width = MIN2(framebuffer->width, surface->width);
+ framebuffer->height = MIN2(framebuffer->height, surface->height);
+}
+
+
/**
* Update framebuffer state (color, depth, stencil, etc. buffers)
*/
st_flush_bitmap_cache(st);
st->state.fb_orientation = st_fb_orientation(fb);
- framebuffer->width = fb->Width;
- framebuffer->height = fb->Height;
+ framebuffer->width = UINT_MAX;
+ framebuffer->height = UINT_MAX;
/*printf("------ fb size %d x %d\n", fb->Width, fb->Height);*/
/* Examine Mesa's ctx->DrawBuffer->_ColorDrawBuffers state
* to determine which surfaces to draw to
*/
- framebuffer->nr_cbufs = 0;
+ framebuffer->nr_cbufs = fb->_NumColorDrawBuffers;
+
for (i = 0; i < fb->_NumColorDrawBuffers; i++) {
+ pipe_surface_reference(&framebuffer->cbufs[i], NULL);
+
strb = st_renderbuffer(fb->_ColorDrawBuffers[i]);
if (strb) {
- /*printf("--------- framebuffer surface rtt %p\n", strb->rtt);*/
- if (strb->is_rtt ||
- (strb->texture && util_format_is_srgb(strb->texture->format))) {
+ if (strb->is_rtt || (strb->texture &&
+ _mesa_get_format_color_encoding(strb->Base.Format) == GL_SRGB)) {
/* rendering to a GL texture, may have to update surface */
st_update_renderbuffer_surface(st, strb);
}
if (strb->surface) {
- pipe_surface_reference(&framebuffer->cbufs[framebuffer->nr_cbufs],
- strb->surface);
- framebuffer->nr_cbufs++;
+ pipe_surface_reference(&framebuffer->cbufs[i], strb->surface);
+ update_framebuffer_size(framebuffer, strb->surface);
}
strb->defined = GL_TRUE; /* we'll be drawing something */
}
}
+
for (i = framebuffer->nr_cbufs; i < PIPE_MAX_COLOR_BUFS; i++) {
pipe_surface_reference(&framebuffer->cbufs[i], NULL);
}
+ /* Remove trailing GL_NONE draw buffers. */
+ while (framebuffer->nr_cbufs &&
+ !framebuffer->cbufs[framebuffer->nr_cbufs-1]) {
+ framebuffer->nr_cbufs--;
+ }
+
/*
* Depth/Stencil renderbuffer/surface.
*/
st_update_renderbuffer_surface(st, strb);
}
pipe_surface_reference(&framebuffer->zsbuf, strb->surface);
+ update_framebuffer_size(framebuffer, strb->surface);
}
else {
strb = st_renderbuffer(fb->Attachment[BUFFER_STENCIL].Renderbuffer);
if (strb) {
- assert(strb->surface);
+ if (strb->is_rtt) {
+ /* rendering to a GL texture, may have to update surface */
+ st_update_renderbuffer_surface(st, strb);
+ }
pipe_surface_reference(&framebuffer->zsbuf, strb->surface);
+ update_framebuffer_size(framebuffer, strb->surface);
}
else
pipe_surface_reference(&framebuffer->zsbuf, NULL);
#ifdef DEBUG
/* Make sure the resource binding flags were set properly */
for (i = 0; i < framebuffer->nr_cbufs; i++) {
- assert(framebuffer->cbufs[i]->texture->bind & PIPE_BIND_RENDER_TARGET);
+ assert(!framebuffer->cbufs[i] ||
+ framebuffer->cbufs[i]->texture->bind & PIPE_BIND_RENDER_TARGET);
}
if (framebuffer->zsbuf) {
assert(framebuffer->zsbuf->texture->bind & PIPE_BIND_DEPTH_STENCIL);
}
#endif
+ if (framebuffer->width == UINT_MAX)
+ framebuffer->width = 0;
+ if (framebuffer->height == UINT_MAX)
+ framebuffer->height = 0;
+
cso_set_framebuffer(st->cso_context, framebuffer);
}