0,0 → 1,80 |
/************************************************************************** |
* |
* Copyright 2009 VMware, Inc. |
* 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. |
* |
**************************************************************************/ |
|
#include "main/glheader.h" |
#include "st_context.h" |
#include "st_cb_viewport.h" |
|
#include "pipe/p_state.h" |
#include "pipe/p_defines.h" |
#include "util/u_atomic.h" |
|
/** |
* Cast wrapper to convert a struct gl_framebuffer to an st_framebuffer. |
* Return NULL if the struct gl_framebuffer is a user-created framebuffer. |
* We'll only return non-null for window system framebuffers. |
* Note that this function may fail. |
*/ |
static INLINE struct st_framebuffer * |
st_ws_framebuffer(struct gl_framebuffer *fb) |
{ |
/* FBO cannot be casted. See st_new_framebuffer */ |
if (fb && _mesa_is_winsys_fbo(fb)) |
return (struct st_framebuffer *) fb; |
return NULL; |
} |
|
static void st_viewport(struct gl_context * ctx, GLint x, GLint y, |
GLsizei width, GLsizei height) |
{ |
struct st_context *st = ctx->st; |
struct st_framebuffer *stdraw; |
struct st_framebuffer *stread; |
|
if (!st->invalidate_on_gl_viewport) |
return; |
|
/* |
* Normally we'd want the state tracker manager to mark the drawables |
* invalid only when needed. This will force the state tracker manager |
* to revalidate the drawable, rather than just update the context with |
* the latest cached drawable info. |
*/ |
|
stdraw = st_ws_framebuffer(st->ctx->DrawBuffer); |
stread = st_ws_framebuffer(st->ctx->ReadBuffer); |
|
if (stdraw && stdraw->iface) |
stdraw->iface_stamp = p_atomic_read(&stdraw->iface->stamp) - 1; |
if (stread && stread != stdraw && stread->iface) |
stread->iface_stamp = p_atomic_read(&stread->iface->stamp) - 1; |
} |
|
void st_init_viewport_functions(struct dd_function_table *functions) |
{ |
functions->Viewport = st_viewport; |
} |