forked from enlightenment/efl
Added EVAS_GL_LINE_NO_OFFSET_HACK evn var control to handle
line coordinate fiddling in gl line drawing code. This fiddling caused issues on some GPU drivers on ARM target. SVN revision: 80417
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@ -1,3 +1,9 @@
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2012-12-07 Sung W. Park (sung_)
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* Added EVAS_GL_LINE_NO_OFFSET_HACK to turn off the line coordinate
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fiddling that was originally in the gl backend code. The offset
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fiddling caused issues with some ARM target GPU drivers.
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2012-12-05 Gustavo Sverzut Barbieri (k-s)
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* Removed DirectFB support (both ecore_directfb, evas and ecore_evas).
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@ -1,11 +1,18 @@
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#include "evas_gl_private.h"
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void
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evas_gl_common_line_draw(Evas_Engine_GL_Context *gc, int x1, int y1, int x2, int y2)
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{
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RGBA_Draw_Context *dc;
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int r, g, b, a;
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int c, cx, cy, cw, ch;
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static int offset_hack = -1;
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if (offset_hack == -1) {
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if (getenv("EVAS_GL_LINE_NO_OFFSET_HACK")) offset_hack = 0;
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else offset_hack = 1;
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}
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dc = gc->dc;
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if (dc->mul.use)
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@ -27,20 +34,25 @@ evas_gl_common_line_draw(Evas_Engine_GL_Context *gc, int x1, int y1, int x2, int
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cx = gc->dc->clip.x; cy = gc->dc->clip.y;
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cw = gc->dc->clip.w; ch = gc->dc->clip.h;
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//Increment pixels since the gl line origin position is slightly different
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if (x1 == x2)
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if (offset_hack)
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{
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if (gc->rot == 0)
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x1++;
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}
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/* Increment pixels since the gl line origin position is slightly different
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on some platform. Carsten did this hack.. doesn't remember exactly why but
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it works most drivers. */
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if (x1 == x2)
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{
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if (gc->rot == 0)
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x1++;
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}
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if (y1 == y2)
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{
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if ((gc->rot == 90) || (gc->rot == 180))
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y1++;
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}
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if (y1 == y2)
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{
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if ((gc->rot == 90) || (gc->rot == 180))
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y1++;
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}
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x2++; y2++;
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x2++; y2++;
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}
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evas_gl_common_context_line_push(gc, x1, y1, x2, y2,
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c, cx, cy, cw, ch,
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