42a0261cb3
This optimization will only call glReadPixels once. It should get some performance gain. But it seems it even get worse performance at SNB, disable it by default. Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
137 lines
4.1 KiB
C
137 lines
4.1 KiB
C
/*
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* Copyright © 2009 Intel Corporation
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* Copyright © 1998 Keith Packard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*
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* Authors:
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* Zhigang Gong <zhigang.gong@gmail.com>
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*
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*/
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include "glamor_priv.h"
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static Bool
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_glamor_get_image(DrawablePtr drawable, int x, int y, int w, int h,
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unsigned int format, unsigned long planeMask, char *d,
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Bool fallback)
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{
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PixmapPtr pixmap;
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struct glamor_pixmap_private *pixmap_priv;
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struct glamor_screen_private *glamor_priv;
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int x_off, y_off;
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GLenum tex_format, tex_type;
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int no_alpha, no_revert;
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PixmapPtr temp_pixmap = NULL;
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glamor_gl_dispatch * dispatch;
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goto fall_back;
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if (format != ZPixmap)
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goto fall_back;
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pixmap = glamor_get_drawable_pixmap(drawable);
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if (!glamor_set_planemask(pixmap, planeMask)) {
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glamor_fallback
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("Failedto set planemask in glamor_solid.\n");
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goto fall_back;
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}
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glamor_priv = glamor_get_screen_private(drawable->pScreen);
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pixmap_priv = glamor_get_pixmap_private(pixmap);
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dispatch = &glamor_priv->dispatch;
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if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(pixmap_priv))
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goto fall_back;
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glamor_get_drawable_deltas(drawable, pixmap, &x_off, &y_off);
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if (glamor_get_tex_format_type_from_pixmap(pixmap,
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&tex_format,
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&tex_type,
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&no_alpha,
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&no_revert)) {
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glamor_fallback("unknown depth. %d \n", drawable->depth);
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goto fall_back;
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}
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glamor_set_destination_pixmap_priv_nc(pixmap_priv);
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glamor_validate_pixmap(pixmap);
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if (glamor_priv->gl_flavor == GLAMOR_GL_ES2) {
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/* XXX prepare whole pixmap is not efficient. */
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temp_pixmap =
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glamor_es2_pixmap_read_prepare(pixmap, &tex_format,
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&tex_type, no_alpha,
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no_revert);
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pixmap_priv = glamor_get_pixmap_private(temp_pixmap);
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glamor_set_destination_pixmap_priv_nc(pixmap_priv);
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}
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int row_length = PixmapBytePad(w, drawable->depth);
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row_length = (row_length * 8) / drawable->bitsPerPixel;
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if (glamor_priv->gl_flavor == GLAMOR_GL_DESKTOP) {
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dispatch->glPixelStorei(GL_PACK_ALIGNMENT, 1);
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dispatch->glPixelStorei(GL_PACK_ROW_LENGTH, row_length);
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} else {
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dispatch->glPixelStorei(GL_PACK_ALIGNMENT, 4);
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}
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if (glamor_priv->yInverted)
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dispatch->glReadPixels(x + x_off,
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y + y_off,
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w, h,
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tex_format,
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tex_type, d);
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else
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dispatch->glReadPixels(x + x_off,
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pixmap->drawable.height - 1 - (y + y_off),
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w,
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h,
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tex_format,
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tex_type, d);
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if (temp_pixmap)
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glamor_destroy_pixmap(temp_pixmap);
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return TRUE;
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fall_back:
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miGetImage(drawable, x, y, w, h, format, planeMask, d);
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return TRUE;
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}
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void
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glamor_get_image(DrawablePtr pDrawable, int x, int y, int w, int h,
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unsigned int format, unsigned long planeMask, char *d)
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{
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_glamor_get_image(pDrawable, x, y, w, h, format, planeMask, d, TRUE);
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return;
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}
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Bool
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glamor_get_image_nf(DrawablePtr pDrawable, int x, int y, int w, int h,
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unsigned int format, unsigned long planeMask, char *d)
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{
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return _glamor_get_image(pDrawable, x, y, w,
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h, format, planeMask, d, FALSE);
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}
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