cairo-perf-cover.c [plain text]
#include "cairo-perf.h"
static void
init_and_set_source_surface (cairo_t *cr,
cairo_surface_t *source,
int width,
int height)
{
cairo_t *cr2;
cr2 = cairo_create (source);
cairo_set_operator (cr2, CAIRO_OPERATOR_CLEAR);
cairo_paint (cr2);
cairo_set_operator (cr2, CAIRO_OPERATOR_SOURCE);
cairo_set_source_rgb (cr2, 0, 0, 1);
cairo_paint (cr2);
cairo_set_source_rgba (cr2, 1, 0, 0, 0.5);
cairo_new_path (cr2);
cairo_rectangle (cr2, 0, 0, width/2.0, height/2.0);
cairo_rectangle (cr2, width/2.0, height/2.0, width/2.0, height/2.0);
cairo_fill (cr2);
cairo_destroy (cr2);
cairo_set_source_surface (cr, source, 0, 0);
}
static void
set_source_solid_rgb (cairo_t *cr,
int width,
int height)
{
cairo_set_source_rgb (cr, 0.2, 0.6, 0.9);
}
static void
set_source_solid_rgba (cairo_t *cr,
int width,
int height)
{
cairo_set_source_rgba (cr, 0.2, 0.6, 0.9, 0.7);
}
static void
set_source_image_surface_rgb (cairo_t *cr,
int width,
int height)
{
cairo_surface_t *source;
source = cairo_image_surface_create (CAIRO_FORMAT_RGB24,
width, height);
init_and_set_source_surface (cr, source, width, height);
cairo_surface_destroy (source);
}
static void
set_source_image_surface_rgba (cairo_t *cr,
int width,
int height)
{
cairo_surface_t *source;
source = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
width, height);
init_and_set_source_surface (cr, source, width, height);
cairo_surface_destroy (source);
}
static void
set_source_image_surface_rgba_mag (cairo_t *cr,
int width,
int height)
{
cairo_surface_t *source;
source = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
width/2, height/2);
cairo_scale(cr, 2.1, 2.1);
init_and_set_source_surface (cr, source, width/2, height/2);
cairo_scale(cr, 1/2.1, 1/2.1);
cairo_surface_destroy (source);
}
static void
set_source_image_surface_rgba_min (cairo_t *cr,
int width,
int height)
{
cairo_surface_t *source;
source = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
width*2, height*2);
cairo_scale(cr, 1/1.9, 1/1.9);
init_and_set_source_surface (cr, source, width*2, height*2);
cairo_scale(cr, 1.9, 1.9);
cairo_surface_destroy (source);
}
static void
set_source_similar_surface_rgb (cairo_t *cr,
int width,
int height)
{
cairo_surface_t *source;
source = cairo_surface_create_similar (cairo_get_group_target (cr),
CAIRO_CONTENT_COLOR,
width, height);
init_and_set_source_surface (cr, source, width, height);
cairo_surface_destroy (source);
}
static void
set_source_similar_surface_rgba (cairo_t *cr,
int width,
int height)
{
cairo_surface_t *source;
source = cairo_surface_create_similar (cairo_get_group_target (cr),
CAIRO_CONTENT_COLOR_ALPHA,
width, height);
init_and_set_source_surface (cr, source, width, height);
cairo_surface_destroy (source);
}
static void
set_source_linear_rgb (cairo_t *cr,
int width,
int height)
{
cairo_pattern_t *linear;
linear = cairo_pattern_create_linear (0.0, 0.0, width, height);
cairo_pattern_add_color_stop_rgb (linear, 0.0, 1, 0, 0);
cairo_pattern_add_color_stop_rgb (linear, 1.0, 0, 0, 1);
cairo_set_source (cr, linear);
cairo_pattern_destroy (linear);
}
static void
set_source_linear_rgba (cairo_t *cr,
int width,
int height)
{
cairo_pattern_t *linear;
linear = cairo_pattern_create_linear (0.0, 0.0, width, height);
cairo_pattern_add_color_stop_rgba (linear, 0.0, 1, 0, 0, 0.5);
cairo_pattern_add_color_stop_rgba (linear, 1.0, 0, 0, 1, 0.0);
cairo_set_source (cr, linear);
cairo_pattern_destroy (linear);
}
static void
set_source_radial_rgb (cairo_t *cr,
int width,
int height)
{
cairo_pattern_t *radial;
radial = cairo_pattern_create_radial (width/2.0, height/2.0, 0.0,
width/2.0, height/2.0, width/2.0);
cairo_pattern_add_color_stop_rgb (radial, 0.0, 1, 0, 0);
cairo_pattern_add_color_stop_rgb (radial, 1.0, 0, 0, 1);
cairo_set_source (cr, radial);
cairo_pattern_destroy (radial);
}
static void
set_source_radial_rgba (cairo_t *cr,
int width,
int height)
{
cairo_pattern_t *radial;
radial = cairo_pattern_create_radial (width/2.0, height/2.0, 0.0,
width/2.0, height/2.0, width/2.0);
cairo_pattern_add_color_stop_rgba (radial, 0.0, 1, 0, 0, 0.5);
cairo_pattern_add_color_stop_rgba (radial, 1.0, 0, 0, 1, 0.0);
cairo_set_source (cr, radial);
cairo_pattern_destroy (radial);
}
typedef void (*set_source_func_t) (cairo_t *cr, int width, int height);
#define ARRAY_SIZE(arr) (sizeof(arr)/sizeof((arr)[0]))
void
cairo_perf_cover_sources_and_operators (cairo_perf_t *perf,
const char *name,
cairo_perf_func_t perf_func)
{
unsigned int i, j;
char *expanded_name;
struct { set_source_func_t set_source; const char *name; } sources[] = {
{ set_source_solid_rgb, "solid_rgb" },
{ set_source_solid_rgba, "solid_rgba" },
{ set_source_image_surface_rgb, "image_rgb" },
{ set_source_image_surface_rgba, "image_rgba" },
{ set_source_image_surface_rgba_mag, "image_rgba_mag" },
{ set_source_image_surface_rgba_min, "image_rgba_min" },
{ set_source_similar_surface_rgb, "similar_rgb" },
{ set_source_similar_surface_rgba, "similar_rgba" },
{ set_source_linear_rgb, "linear_rgb" },
{ set_source_linear_rgba, "linear_rgba" },
{ set_source_radial_rgb, "radial_rgb" },
{ set_source_radial_rgba, "radial_rgba" }
};
struct { cairo_operator_t op; const char *name; } operators[] = {
{ CAIRO_OPERATOR_OVER, "over" },
{ CAIRO_OPERATOR_SOURCE, "source" }
};
for (i = 0; i < ARRAY_SIZE (sources); i++) {
(sources[i].set_source) (perf->cr, perf->size, perf->size);
for (j = 0; j < ARRAY_SIZE (operators); j++) {
cairo_set_operator (perf->cr, operators[j].op);
xasprintf (&expanded_name, "%s_%s_%s",
name, sources[i].name, operators[j].name);
cairo_perf_run (perf, expanded_name, perf_func);
free (expanded_name);
}
}
}