3e9c35bdcb
As GLES2 doesn't support LogiOps, we have to fallback here. GLES2 programing guide's statement is as below: "In addition, LogicOp is removed as it is very infrequently used by applications and the OpenGL ES working group did not get requests from independent software vendors (ISVs) to support this feature in OpenGL ES 2.0." So, I think, fallback here may not a big deal ;). Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
141 lines
4.1 KiB
C
141 lines
4.1 KiB
C
/*
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* Copyright © 2009 Intel Corporation
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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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* Eric Anholt <eric@anholt.net>
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*
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*/
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#include "glamor_priv.h"
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static Bool
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_glamor_set_spans(DrawablePtr drawable, GCPtr gc, char *src,
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DDXPointPtr points, int *widths, int n, int sorted,
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Bool fallback)
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{
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PixmapPtr dest_pixmap = glamor_get_drawable_pixmap(drawable);
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glamor_pixmap_private *dest_pixmap_priv;
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glamor_screen_private *glamor_priv =
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glamor_get_screen_private(drawable->pScreen);
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glamor_gl_dispatch *dispatch;
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GLenum format, type;
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int no_alpha, revert, i;
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uint8_t *drawpixels_src = (uint8_t *) src;
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RegionPtr clip = fbGetCompositeClip(gc);
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BoxRec *pbox;
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int x_off, y_off;
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Bool ret = FALSE;
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int swap_rb;
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dest_pixmap_priv = glamor_get_pixmap_private(dest_pixmap);
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if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(dest_pixmap_priv)) {
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glamor_fallback("pixmap has no fbo.\n");
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goto fail;
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}
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if (glamor_priv->gl_flavor == GLAMOR_GL_ES2) {
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glamor_fallback("ES2 fallback.\n");
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goto fail;
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}
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if (glamor_get_tex_format_type_from_pixmap(dest_pixmap,
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&format,
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&type, &no_alpha,
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&revert,
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&swap_rb,
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1)) {
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glamor_fallback("unknown depth. %d \n", drawable->depth);
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goto fail;
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}
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glamor_set_destination_pixmap_priv_nc(dest_pixmap_priv);
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glamor_validate_pixmap(dest_pixmap);
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if (!glamor_set_planemask(dest_pixmap, gc->planemask))
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goto fail;
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glamor_get_drawable_deltas(drawable, dest_pixmap, &x_off, &y_off);
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dispatch = glamor_get_dispatch(glamor_priv);
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if (!glamor_set_alu(dispatch, gc->alu)) {
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glamor_put_dispatch(glamor_priv);
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goto fail;
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}
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for (i = 0; i < n; i++) {
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n = REGION_NUM_RECTS(clip);
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pbox = REGION_RECTS(clip);
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while (n--) {
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if (pbox->y1 > points[i].y)
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break;
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dispatch->glScissor(pbox->x1,
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points[i].y + y_off,
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pbox->x2 - pbox->x1, 1);
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dispatch->glEnable(GL_SCISSOR_TEST);
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dispatch->glRasterPos2i(points[i].x + x_off,
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points[i].y + y_off);
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dispatch->glDrawPixels(widths[i], 1, format,
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type, drawpixels_src);
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}
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drawpixels_src +=
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PixmapBytePad(widths[i], drawable->depth);
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}
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glamor_set_planemask(dest_pixmap, ~0);
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glamor_set_alu(dispatch, GXcopy);
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dispatch->glDisable(GL_SCISSOR_TEST);
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glamor_put_dispatch(glamor_priv);
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ret = TRUE;
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goto done;
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fail:
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if (!fallback
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&& glamor_ddx_fallback_check_pixmap(drawable))
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goto done;
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glamor_fallback("to %p (%c)\n",
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drawable, glamor_get_drawable_location(drawable));
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if (glamor_prepare_access(drawable, GLAMOR_ACCESS_RW)) {
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fbSetSpans(drawable, gc, src, points, widths, n, sorted);
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glamor_finish_access(drawable, GLAMOR_ACCESS_RW);
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}
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ret = TRUE;
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done:
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return ret;
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}
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void
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glamor_set_spans(DrawablePtr drawable, GCPtr gc, char *src,
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DDXPointPtr points, int *widths, int n, int sorted)
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{
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_glamor_set_spans(drawable, gc, src, points,
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widths, n, sorted, TRUE);
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}
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Bool
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glamor_set_spans_nf(DrawablePtr drawable, GCPtr gc, char *src,
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DDXPointPtr points, int *widths, int n, int sorted)
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{
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return _glamor_set_spans(drawable, gc, src, points,
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widths, n, sorted, FALSE);
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}
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