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Add new functions for filling fb within clip rect

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This commit is contained in:
Charlie Brej 2008-09-20 18:25:57 -04:00 • committed by Ray Strode
parent 8b2aebbc0b
commit caf2ac5839
2 changed files with 49 additions and 2 deletions
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37
src/libply/ply-frame-buffer.c
View file

@ -922,8 +922,9 @@ ply_frame_buffer_fill_with_hex_color (ply_frame_buffer_t *buffer,
}
bool
ply_frame_buffer_fill_with_argb32_data_at_opacity (ply_frame_buffer_t *buffer,
ply_frame_buffer_fill_with_argb32_data_at_opacity_with_clip (ply_frame_buffer_t *buffer,
ply_frame_buffer_area_t *area,
ply_frame_buffer_area_t *clip,
unsigned long x,
unsigned long y,
uint32_t *data,
@ -941,6 +942,14 @@ ply_frame_buffer_fill_with_argb32_data_at_opacity (ply_frame_buffer_t *buff
ply_frame_buffer_area_intersect (area, &buffer->area, &cropped_area);
if (clip)
ply_frame_buffer_area_intersect (&cropped_area, clip, &cropped_area);
if (cropped_area.width == 0 || cropped_area.height == 0)
return true;
x += cropped_area.x - area->x;
y += cropped_area.y - area->y;
opacity_as_byte = (uint8_t) (opacity * 255.0);
for (row = y; row < y + cropped_area.height; row++)
@ -967,6 +976,18 @@ ply_frame_buffer_fill_with_argb32_data_at_opacity (ply_frame_buffer_t *buff
return ply_frame_buffer_flush (buffer);
}
bool
ply_frame_buffer_fill_with_argb32_data_at_opacity (ply_frame_buffer_t *buffer,
ply_frame_buffer_area_t *area,
unsigned long x,
unsigned long y,
uint32_t *data,
double opacity)
{
return ply_frame_buffer_fill_with_argb32_data_at_opacity_with_clip (buffer, area, NULL,
x, y, data, opacity);
}
bool
ply_frame_buffer_fill_with_argb32_data (ply_frame_buffer_t *buffer,
ply_frame_buffer_area_t *area,
@ -974,7 +995,19 @@ ply_frame_buffer_fill_with_argb32_data (ply_frame_buffer_t *buffer,
unsigned long y,
uint32_t *data)
{
return ply_frame_buffer_fill_with_argb32_data_at_opacity (buffer, area,
return ply_frame_buffer_fill_with_argb32_data_at_opacity_with_clip (buffer, area, NULL,
x, y, data, 1.0);
}
bool
ply_frame_buffer_fill_with_argb32_data_with_clip (ply_frame_buffer_t *buffer,
ply_frame_buffer_area_t *area,
ply_frame_buffer_area_t *clip,
unsigned long x,
unsigned long y,
uint32_t *data)
{
return ply_frame_buffer_fill_with_argb32_data_at_opacity_with_clip (buffer, area, clip,
x, y, data, 1.0);
}

14
src/libply/ply-frame-buffer.h
View file

@ -89,6 +89,20 @@ bool ply_frame_buffer_fill_with_argb32_data_at_opacity (ply_frame_buffer_t
uint32_t *data,
double opacity);
bool ply_frame_buffer_fill_with_argb32_data_with_clip (ply_frame_buffer_t *buffer,
ply_frame_buffer_area_t *area,
ply_frame_buffer_area_t *clip,
unsigned long x,
unsigned long y,
uint32_t *data);
bool ply_frame_buffer_fill_with_argb32_data_at_opacity_with_clip (ply_frame_buffer_t *buffer,
ply_frame_buffer_area_t *area,
ply_frame_buffer_area_t *clip,
unsigned long x,
unsigned long y,
uint32_t *data,
double opacity);
const char *ply_frame_buffer_get_bytes (ply_frame_buffer_t *buffer);