forked from enlightenment/efl
cleaned up the transformation matrix code. use the proper x macro to convert a double into a matrix component instead of hardcoding the bitshift. added init_transform() which will initialize a matrix to the identity transform.
SVN revision: 25726
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d87d871417
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89ce1b8367
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@ -1,3 +1,6 @@
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/*
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* vim:ts=8:sw=3:sts=8:noexpandtab:cino=>5n-3f0^-2{2
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*/
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#include "evas_common.h"
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#include "evas_macros.h"
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#include "evas_private.h"
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@ -330,6 +333,17 @@ _xr_render_surface_clips_set(Xrender_Surface *rs, RGBA_Draw_Context *dc, int rx,
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free(rect);
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}
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/* initialized the transform to the identity */
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static void init_transform (XTransform *t)
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{
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int i, j;
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for (i = 0; i < 3; i++)
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for (j = 0; j < 3; j++)
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t->matrix[i][j] = XDoubleToFixed((i == j) ? 1 : 0);
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}
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// when color multiplier is used want: instead
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// CA src IN mask SRC temp; non-CA temp OVER dst. - i think. need to check.
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void
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@ -352,17 +366,7 @@ _xr_render_surface_composite(Xrender_Surface *srs, Xrender_Surface *drs, RGBA_Dr
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XRenderChangePicture(srs->xinf->disp, srs->pic, CPClipMask, &att);
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XRenderChangePicture(srs->xinf->disp, drs->pic, CPClipMask, &att);
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id.matrix[0][0] = 1 << 16;
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id.matrix[0][1] = 0;
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id.matrix[0][2] = 0;
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id.matrix[1][0] = 0;
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id.matrix[1][1] = 1 << 16;
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id.matrix[1][2] = 0;
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id.matrix[2][0] = 0;
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id.matrix[2][1] = 0;
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id.matrix[2][2] = 1 << 16;
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init_transform(&id);
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op = PictOpSrc;
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if (srs->alpha) op = PictOpOver;
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@ -423,17 +427,9 @@ _xr_render_surface_composite(Xrender_Surface *srs, Xrender_Surface *drs, RGBA_Dr
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}
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}
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xf.matrix[0][0] = (sw << 16) / w;
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xf.matrix[0][1] = 0;
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xf.matrix[0][2] = 0;
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xf.matrix[1][0] = 0;
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xf.matrix[1][1] = (sh << 16) / h;
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xf.matrix[1][2] = 0;
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xf.matrix[2][0] = 0;
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xf.matrix[2][1] = 0;
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xf.matrix[2][2] = 1 << 16;
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xf = id;
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xf.matrix[0][0] = XDoubleToFixed(sw) / w;
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xf.matrix[1][1] = XDoubleToFixed(sh) / h;
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_xr_render_surface_clips_set(drs, dc, x, y, w, h);
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if (trs)
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@ -497,25 +493,19 @@ _xr_render_surface_copy(Xrender_Surface *srs, Xrender_Surface *drs, int sx, int
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{
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XTransform xf;
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XRenderPictureAttributes att;
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int ident;
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if ((w <= 0) || (h <= 0) || (!srs) || (!drs)) return;
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ident = 1 << 16;
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init_transform(&xf);
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/* FIXME: why do we need to change the identity matrix ifthe src surface
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* is 1 bit deep?
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*/
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if (srs->depth == 1) ident = 1;
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xf.matrix[0][0] = ident;
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xf.matrix[0][1] = 0;
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xf.matrix[0][2] = 0;
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if (srs->depth == 1)
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{
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xf.matrix[0][0] = xf.matrix[1][1] = xf.matrix[2][2] = 1;
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}
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xf.matrix[1][0] = 0;
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xf.matrix[1][1] = ident;
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xf.matrix[1][2] = 0;
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xf.matrix[2][0] = 0;
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xf.matrix[2][1] = 0;
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xf.matrix[2][2] = ident;
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XRenderSetPictureTransform(srs->xinf->disp, srs->pic, &xf);
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att.clip_mask = None;
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