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[directfb] Only use the pure BLIT for integer translations.

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If we have non-integer translation on a source pattern then we need to use
STRECTHBLIT (the core takes care to optimize NEAREST patterns to integer
translations so that this will only be used when interpolation is
required).
This commit is contained in:
Chris Wilson 2008-10-20 18:39:45 +01:00
parent 55bb7087b0
commit 6f35c2d13e
1 changed files with 23 additions and 7 deletions
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30
src/cairo-directfb-surface.c
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@ -804,6 +804,7 @@ _directfb_prepare_composite (cairo_directfb_surface_t *dst,
if (flags & (DSBLIT_BLEND_COLORALPHA | DSBLIT_COLORIZE))
dst->dfbsurface->SetColor (dst->dfbsurface, color.r, color.g, color.b, color.a);
*ret_src = src;
*ret_src_attr = src_attr;
@ -843,7 +844,15 @@ _directfb_categorize_operation (cairo_surface_attributes_t *src_attr)
switch (src_attr->extend) {
case CAIRO_EXTEND_NONE:
case CAIRO_EXTEND_REPEAT:
return DFXL_BLIT;
if (_cairo_matrix_is_integer_translation (&src_attr->matrix,
NULL, NULL))
{
return DFXL_BLIT;
}
else
{
return DFXL_STRETCHBLIT;
}
default:
case CAIRO_EXTEND_REFLECT:
@ -866,8 +875,10 @@ _cairo_directfb_surface_composite (cairo_operator_t op,
cairo_directfb_surface_t *dst = abstract_dst;
cairo_directfb_surface_t *src;
cairo_surface_attributes_t src_attr;
cairo_bool_t is_integer_translation;
DFBAccelerationMask accel, mask;
cairo_int_status_t status;
int tx, ty;
D_DEBUG_AT (CairoDFB_Render,
"%s( op=%d, src_pattern=%p, mask_pattern=%p, dst=%p,"
@ -907,8 +918,13 @@ _cairo_directfb_surface_composite (cairo_operator_t op,
{
DFBRectangle sr;
sr.x = src_x + _cairo_lround (src_attr.matrix.x0);
sr.y = src_y + _cairo_lround (src_attr.matrix.y0);
is_integer_translation =
_cairo_matrix_is_integer_translation (&src_attr.matrix,
&tx, &ty);
assert (is_integer_translation);
sr.x = src_x + tx;
sr.y = src_y + ty;
sr.w = width;
sr.h = height;
@ -949,10 +965,10 @@ _cairo_directfb_surface_composite (cairo_operator_t op,
TRANSFORM_POINT2X (src_attr.matrix,
src_x+width, src_y+height, x2, y2);
sr.x = _cairo_lround (x1);
sr.y = _cairo_lround (y1);
sr.w = _cairo_lround (x2-x1);
sr.h = _cairo_lround (y2-y1);
sr.x = floor (x1);
sr.y = floor (y1);
sr.w = ceil (x2) - sr.x;
sr.h = ceil (y2) - sr.y;
dr.x = dst_x;
dr.y = dst_y;