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Prepare for modification of gradient using shader.

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Prepare for modification of gradient using shader. The
 gradient pixmaps now is generated by pixman and we will
 replace them with shader. Add structure fields and
 dispatch functions which will be needed. Some auxiliary
 macro for vertex convert.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
This commit is contained in:
Junyan He
2012-03-23 04:05:48 +08:00
committed by Eric Anholt
parent a57bf66d49
commit ccf5d7f52b
6 changed files with 78 additions and 7 deletions
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29
glamor/glamor_utils.h
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@@ -99,6 +99,24 @@
(vertices)[7] = (vertices)[5]; \
} while(0)
#define glamor_set_tcoords(x1, y1, x2, y2, yInverted, vertices) \
do { \
(vertices)[0] = (x1); \
(vertices)[2] = (x2); \
(vertices)[4] = (vertices)[2]; \
(vertices)[6] = (vertices)[0]; \
if (yInverted) { \
(vertices)[1] = (y1); \
(vertices)[5] = (y2); \
} \
else { \
(vertices)[1] = (y2); \
(vertices)[5] = (y1); \
} \
(vertices)[3] = (vertices)[1]; \
(vertices)[7] = (vertices)[5]; \
} while(0)
#define glamor_set_normalize_vcoords(xscale, yscale, x1, y1, x2, y2, \
yInverted, vertices) \
@@ -119,6 +137,17 @@
(vertices)[7] = (vertices)[5]; \
} while(0)
#define glamor_set_normalize_pt(xscale, yscale, x, x_start, y, y_start, \
yInverted, pt) \
do { \
(pt)[0] = t_from_x_coord_x(xscale, x - x_start); \
if (yInverted) { \
(pt)[1] = t_from_x_coord_y_inverted(yscale, y - y_start); \
} else { \
(pt)[1] = t_from_x_coord_y(yscale, y - y_start); \
} \
(pt)[2] = (pt)[3] = 0.0; \
} while(0)
inline static void
glamor_calculate_boxes_bound(BoxPtr bound, BoxPtr boxes, int nbox)