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#include "gdk-pixbuf.h"
#include "pixops/pixops.h"
#include "math.h"
/**
* gdk_pixbuf_scale:
* @src: a #GdkPixbuf
* @dest: the #GdkPixbuf into which to render the results
* @dest_x: the left coordinate for region to render
* @dest_y: the top coordinate for region to render
* @dest_width: the width of the region to render
* @dest_height: the height of the region to render
* @offset_x: the offset in the X direction (currently rounded to an integer)
* @offset_y: the offset in the Y direction (currently rounded to an integer)
* @scale_x: the scale factor in the X direction
* @scale_y: the scale factor in the Y direction
* @filter_level: the filter quality for the transformation.
*
* Transforms the image by source image by scaling by @scale_x and @scale_y then
* translating by @offset_x and @offset_y, then renders the rectangle
* (@dest,@dest_y,@dest_width,@dest_height) of the resulting image onto the
* destination drawable replacing the previous contents.
**/
void
gdk_pixbuf_scale (GdkPixbuf *src,
GdkPixbuf *dest,
int dest_x,
int dest_y,
int dest_width,
int dest_height,
double offset_x,
double offset_y,
double scale_x,
double scale_y,
ArtFilterLevel filter_level)
{
offset_x = floor(offset_x + 0.5);
offset_y = floor(offset_y + 0.5);
pixops_scale (dest->art_pixbuf->pixels + dest_y * dest->art_pixbuf->rowstride + dest_x * dest->art_pixbuf->n_channels,
-offset_x, -offset_y, dest_width - offset_x, dest_height - offset_y,
dest->art_pixbuf->rowstride, dest->art_pixbuf->n_channels, dest->art_pixbuf->has_alpha,
src->art_pixbuf->pixels, src->art_pixbuf->width, src->art_pixbuf->height,
src->art_pixbuf->rowstride, src->art_pixbuf->n_channels, src->art_pixbuf->has_alpha,
scale_x, scale_y, filter_level);
}
/**
* gdk_pixbuf_composite:
* @src: a #GdkPixbuf
* @dest: the #GdkPixbuf into which to render the results
* @dest_x: the left coordinate for region to render
* @dest_y: the top coordinate for region to render
* @dest_width: the width of the region to render
* @dest_height: the height of the region to render
* @offset_x: the offset in the X direction (currently rounded to an integer)
* @offset_y: the offset in the Y direction (currently rounded to an integer)
* @scale_x: the scale factor in the X direction
* @scale_y: the scale factor in the Y direction
* @filter_level: the filter quality for the transformation.
* @overall_alpha: overall alpha for source image (0..255)
*
* Transforms the image by source image by scaling by @scale_x and @scale_y then
* translating by @offset_x and @offset_y, then composites the rectangle
* (@dest,@dest_y,@dest_width,@dest_height) of the resulting image onto the
* destination drawable.
**/
void
gdk_pixbuf_composite (GdkPixbuf *src,
GdkPixbuf *dest,
int dest_x,
int dest_y,
int dest_width,
int dest_height,
double offset_x,
double offset_y,
double scale_x,
double scale_y,
ArtFilterLevel filter_level,
int overall_alpha)
{
offset_x = floor(offset_x + 0.5);
offset_y = floor(offset_y + 0.5);
pixops_composite (dest->art_pixbuf->pixels + dest_y * dest->art_pixbuf->rowstride + dest_x * dest->art_pixbuf->n_channels,
-offset_x, -offset_y, dest_width - offset_x, dest_height - offset_y,
dest->art_pixbuf->rowstride, dest->art_pixbuf->n_channels, dest->art_pixbuf->has_alpha,
src->art_pixbuf->pixels, src->art_pixbuf->width, src->art_pixbuf->height,
src->art_pixbuf->rowstride, src->art_pixbuf->n_channels, src->art_pixbuf->has_alpha,
scale_x, scale_y, filter_level, overall_alpha);
}
/**
* gdk_pixbuf_composite_color:
* @src: a #GdkPixbuf
* @dest: the #GdkPixbuf into which to render the results
* @dest_x: the left coordinate for region to render
* @dest_y: the top coordinate for region to render
* @dest_width: the width of the region to render
* @dest_height: the height of the region to render
* @offset_x: the offset in the X direction (currently rounded to an integer)
* @offset_y: the offset in the Y direction (currently rounded to an integer)
* @scale_x: the scale factor in the X direction
* @scale_y: the scale factor in the Y direction
* @filter_level: the filter quality for the transformation.
* @overall_alpha: overall alpha for source image (0..255)
* @check_x: the X offset for the checkboard (origin of checkboard is at -@check_x, -@check_y)
* @check_y: the Y offset for the checkboard
* @check_size: the size of checks in the checkboard (must be a power of two)
* @color1: the color of check at upper left
* @color2: the color of the other check
*
* Transforms the image by source image by scaling by @scale_x and @scale_y then
* translating by @offset_x and @offset_y, then composites the rectangle
* (@dest,@dest_y,@dest_width,@dest_height) of the resulting image with
* a checkboard of the colors @color1 and @color2 and renders it onto the
* destination drawable.
**/
void
gdk_pixbuf_composite_color (GdkPixbuf *src,
GdkPixbuf *dest,
int dest_x,
int dest_y,
int dest_width,
int dest_height,
double offset_x,
double offset_y,
double scale_x,
double scale_y,
ArtFilterLevel filter_level,
int overall_alpha,
int check_x,
int check_y,
int check_size,
art_u32 color1,
art_u32 color2)
{
offset_x = floor(offset_x + 0.5);
offset_y = floor(offset_y + 0.5);
pixops_composite_color (dest->art_pixbuf->pixels + dest_y * dest->art_pixbuf->rowstride + dest_x * dest->art_pixbuf->n_channels,
-offset_x, -offset_y, dest_width - offset_x, dest_height - offset_y,
dest->art_pixbuf->rowstride, dest->art_pixbuf->n_channels, dest->art_pixbuf->has_alpha,
src->art_pixbuf->pixels, src->art_pixbuf->width, src->art_pixbuf->height,
src->art_pixbuf->rowstride, src->art_pixbuf->n_channels, src->art_pixbuf->has_alpha,
scale_x, scale_y, filter_level, overall_alpha, check_x, check_y, check_size, color1, color2);
}
/**
* gdk_pixbuf_scale_simple:
* @src: a #GdkPixbuf
* @dest_width: the width of destination image
* @dest_height: the height of destination image
* @filter_level: the filter quality for the transformation.
*
* Scale the #GdkPixbuf @src to @dest_width x @dest_height and render the result into
* a new #GdkPixbuf.
*
* Return value: the new #GdkPixbuf
**/
GdkPixbuf *
gdk_pixbuf_scale_simple (GdkPixbuf *src,
int dest_width,
int dest_height,
ArtFilterLevel filter_level)
{
GdkPixbuf *dest = gdk_pixbuf_new (ART_PIX_RGB, src->art_pixbuf->has_alpha, 8, dest_width, dest_height);
gdk_pixbuf_scale (src, dest, 0, 0, dest_width, dest_height, 0, 0,
(double)dest_width / src->art_pixbuf->width,
(double)dest_height / src->art_pixbuf->height,
filter_level);
return dest;
}
/**
* gdk_pixbuf_composite_color_simple:
* @src: a #GdkPixbuf
* @dest_width: the width of destination image
* @dest_height: the height of destination image
* @filter_level: the filter quality for the transformation.
* @overall_alpha: overall alpha for source image (0..255)
* @check_size: the size of checks in the checkboard (must be a power of two)
* @color1: the color of check at upper left
* @color2: the color of the other check
*
* Scale the #GdkPixbuf @src to @dest_width x @dest_height composite the result with
* a checkboard of colors @color1 and @color2 and render the result into
* a new #GdkPixbuf.
*
* Return value: the new #GdkPixbuf
**/
GdkPixbuf *
gdk_pixbuf_composite_color_simple (GdkPixbuf *src,
int dest_width,
int dest_height,
ArtFilterLevel filter_level,
int overall_alpha,
int check_size,
art_u32 color1,
art_u32 color2)
{
GdkPixbuf *dest = gdk_pixbuf_new (ART_PIX_RGB, src->art_pixbuf->has_alpha, 8, dest_width, dest_height);
gdk_pixbuf_composite_color (src, dest, 0, 0, dest_width, dest_height, 0, 0,
(double)dest_width / src->art_pixbuf->width,
(double)dest_height / src->art_pixbuf->height,
filter_level, overall_alpha, 0, 0, check_size, color1, color2);
return dest;
}
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