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/**************************************************************************
*
* 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 <keith@tungstengraphics.com>
*/
#include "intel_context.h"
#include "intel_frame_tracker.h"
#include "intel_fbo.h"
#include "clip/clip_context.h"
#include "i915_context.h"
#define FILE_DEBUG_FLAG DEBUG_RENDER
static GLboolean check_hwz( struct intel_context *intel )
{
/* _NEW_BUFFERS ???
*/
struct intel_framebuffer *intel_fb = intel_get_fb( intel );
return intel_fb && intel_fb->Base.Name == 0 && intel_fb->hwz;
}
static GLboolean check_swz( struct intel_context *intel )
{
/* _NEW_BUFFERS ???
*/
if (!intel->cmdstream.size)
return GL_FALSE;
/* _NEW_BUFFERS
*
* Requires a tiled surface, fbo's currently aren't (which should
* be fixed)
*/
if (intel->state.DrawBuffer == NULL ||
intel->state.DrawBuffer->Name != 0 ||
intel->numClipRects > 1)
return GL_FALSE;
return GL_TRUE;
}
static void choose_rasterizer( struct intel_context *intel )
{
struct clip_render *render = NULL;
if (intel->Fallback) {
/* INTEL_NEW_FALLBACK
*/
render = intel->swrender;
}
else if (intel->clip_vb_state.active_prims & intel->fallback_prims) {
/* INTEL_NEW_VB_STATE, INTEL_NEW_FALLBACK_PRIMS
*/
if (0 & intel->clip_vb_state.active_prims & ~intel->fallback_prims) {
/* classic + swrast - not done yet */
render = intel->mixed;
}
else {
render = intel->swrender;
}
}
else if (check_hwz( intel )) {
render = intel->hwz;
}
else if (check_swz( intel )) {
render = intel->swz;
}
else {
render = intel->classic;
}
if (render != intel->render) {
DBG("%s %s\n", __FUNCTION__, render->name);
clip_set_render( intel->clip, render );
intel->render = render;
}
}
const struct intel_tracked_state i915_choose_rasterizer = {
.dirty = {
.mesa = (_NEW_BUFFERS),
.intel = (INTEL_NEW_FALLBACK_PRIMS |
INTEL_NEW_FALLBACK |
INTEL_NEW_VB_STATE
/* | INTEL_NEW_FRAME */
),
.extra = 0
},
.update = choose_rasterizer
};
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