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/********************************************************** |
* Copyright 2008-2009 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, sublicense, 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 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 |
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
* 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 "svga_cmd.h" |
#include "svga_debug.h" |
|
#include "pipe/p_defines.h" |
#include "util/u_pack_color.h" |
|
#include "svga_context.h" |
#include "svga_state.h" |
#include "svga_surface.h" |
|
|
static enum pipe_error |
try_clear(struct svga_context *svga, |
unsigned buffers, |
const union pipe_color_union *color, |
double depth, |
unsigned stencil) |
{ |
enum pipe_error ret = PIPE_OK; |
SVGA3dRect rect = { 0, 0, 0, 0 }; |
boolean restore_viewport = FALSE; |
SVGA3dClearFlag flags = 0; |
struct pipe_framebuffer_state *fb = &svga->curr.framebuffer; |
union util_color uc = {0}; |
|
ret = svga_update_state(svga, SVGA_STATE_HW_CLEAR); |
if (ret != PIPE_OK) |
return ret; |
|
if (svga->rebind.rendertargets) { |
ret = svga_reemit_framebuffer_bindings(svga); |
if (ret != PIPE_OK) { |
return ret; |
} |
} |
|
if ((buffers & PIPE_CLEAR_COLOR) && fb->cbufs[0]) { |
flags |= SVGA3D_CLEAR_COLOR; |
util_pack_color(color->f, PIPE_FORMAT_B8G8R8A8_UNORM, &uc); |
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rect.w = fb->cbufs[0]->width; |
rect.h = fb->cbufs[0]->height; |
} |
|
if ((buffers & PIPE_CLEAR_DEPTHSTENCIL) && fb->zsbuf) { |
if (buffers & PIPE_CLEAR_DEPTH) |
flags |= SVGA3D_CLEAR_DEPTH; |
|
if ((svga->curr.framebuffer.zsbuf->format == PIPE_FORMAT_S8_UINT_Z24_UNORM) && |
(buffers & PIPE_CLEAR_STENCIL)) |
flags |= SVGA3D_CLEAR_STENCIL; |
|
rect.w = MAX2(rect.w, fb->zsbuf->width); |
rect.h = MAX2(rect.h, fb->zsbuf->height); |
} |
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if (memcmp(&rect, &svga->state.hw_clear.viewport, sizeof(rect)) != 0) { |
restore_viewport = TRUE; |
ret = SVGA3D_SetViewport(svga->swc, &rect); |
if (ret != PIPE_OK) |
return ret; |
} |
|
ret = SVGA3D_ClearRect(svga->swc, flags, uc.ui, (float) depth, stencil, |
rect.x, rect.y, rect.w, rect.h); |
if (ret != PIPE_OK) |
return ret; |
|
if (restore_viewport) { |
memcpy(&rect, &svga->state.hw_clear.viewport, sizeof rect); |
ret = SVGA3D_SetViewport(svga->swc, &rect); |
} |
|
return ret; |
} |
|
/** |
* Clear the given surface to the specified value. |
* No masking, no scissor (clear entire buffer). |
*/ |
void |
svga_clear(struct pipe_context *pipe, unsigned buffers, |
const union pipe_color_union *color, |
double depth, unsigned stencil) |
{ |
struct svga_context *svga = svga_context( pipe ); |
enum pipe_error ret; |
|
if (buffers & PIPE_CLEAR_COLOR) |
SVGA_DBG(DEBUG_DMA, "clear sid %p\n", |
svga_surface(svga->curr.framebuffer.cbufs[0])->handle); |
|
/* flush any queued prims (don't want them to appear after the clear!) */ |
svga_hwtnl_flush_retry(svga); |
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ret = try_clear( svga, buffers, color, depth, stencil ); |
|
if (ret == PIPE_ERROR_OUT_OF_MEMORY) { |
/* Flush command buffer and retry: |
*/ |
svga_context_flush( svga, NULL ); |
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ret = try_clear( svga, buffers, color, depth, stencil ); |
} |
|
/* |
* Mark target surfaces as dirty |
* TODO Mark only cleared surfaces. |
*/ |
svga_mark_surfaces_dirty(svga); |
|
assert (ret == PIPE_OK); |
} |