/*
* Copyright (C) 2000 Red Hat, Inc
+ * mediaLib integration Copyright (c) 2001-2007 Sun Microsystems, Inc.
+ * All rights reserved. (Brian Cameron, Dmitriy Demin, James Cheng,
+ * Padraig O'Briain)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
#define SUBSAMPLE_MASK ((1 << SUBSAMPLE_BITS)-1)
#define SCALE_SHIFT 16
+static void
+_pixops_scale_real (guchar *dest_buf,
+ int render_x0,
+ int render_y0,
+ int render_x1,
+ int render_y1,
+ int dest_rowstride,
+ int dest_channels,
+ gboolean dest_has_alpha,
+ const guchar *src_buf,
+ int src_width,
+ int src_height,
+ int src_rowstride,
+ int src_channels,
+ gboolean src_has_alpha,
+ double scale_x,
+ double scale_y,
+ PixopsInterpType interp_type);
+
typedef struct _PixopsFilter PixopsFilter;
typedef struct _PixopsFilterDimension PixopsFilterDimension;
};
typedef guchar *(*PixopsLineFunc) (int *weights, int n_x, int n_y,
- guchar *dest, int dest_x, guchar *dest_end, int dest_channels, int dest_has_alpha,
- guchar **src, int src_channels, gboolean src_has_alpha,
- int x_init, int x_step, int src_width,
- int check_size, guint32 color1, guint32 color2);
+ guchar *dest, int dest_x, guchar *dest_end,
+ int dest_channels, int dest_has_alpha,
+ guchar **src, int src_channels,
+ gboolean src_has_alpha, int x_init,
+ int x_step, int src_width, int check_size,
+ guint32 color1, guint32 color2);
+typedef void (*PixopsPixelFunc) (guchar *dest, int dest_x, int dest_channels,
+ int dest_has_alpha, int src_has_alpha,
+ int check_size, guint32 color1,
+ guint32 color2,
+ guint r, guint g, guint b, guint a);
+
+#ifdef USE_MEDIALIB
+#include <stdlib.h>
+#include <dlfcn.h>
+#include <mlib_image.h>
+
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
+
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+
+#if defined(HAVE_SYS_SYSTEMINFO_H)
+#include <sys/systeminfo.h>
+#elif defined(HAVE_SYS_SYSINFO_H)
+#include <sys/sysinfo.h>
+#endif
+
+static void pixops_medialib_composite (guchar *dest_buf,
+ int dest_width,
+ int dest_height,
+ int dest_rowstride,
+ int dest_channels,
+ int dest_has_alpha,
+ const guchar *src_buf,
+ int src_width,
+ int src_height,
+ int src_rowstride,
+ int src_channels,
+ int src_has_alpha,
+ int dest_x,
+ int dest_y,
+ int dest_region_width,
+ int dest_region_height,
+ double offset_x,
+ double offset_y,
+ double scale_x,
+ double scale_y,
+ PixopsInterpType interp_type,
+ int overall_alpha);
+
+static void pixops_medialib_scale (guchar *dest_buf,
+ int dest_width,
+ int dest_height,
+ int dest_rowstride,
+ int dest_channels,
+ int dest_has_alpha,
+ const guchar *src_buf,
+ int src_width,
+ int src_height,
+ int src_rowstride,
+ int src_channels,
+ int src_has_alpha,
+ int dest_x,
+ int dest_y,
+ int dest_region_width,
+ int dest_region_height,
+ double offset_x,
+ double offset_y,
+ double scale_x,
+ double scale_y,
+ PixopsInterpType interp_type);
+
+typedef struct _mlInterp mlInterp;
+
+struct _mlInterp
+{
+ double tx;
+ double ty;
+ PixopsFilter po_filter;
+ void *interp_table;
+};
+
+static gboolean medialib_initialized = FALSE;
+static gboolean use_medialib = TRUE;
+
+/*
+ * Sun mediaLib(tm) support.
+ *
+ * http://www.sun.com/processors/vis/mlib.html
+ *
+ */
+static void
+_pixops_use_medialib ()
+{
+ char *mlib_version_string;
+ char sys_info[257];
+ long count;
+
+ medialib_initialized = TRUE;
+
+ if (getenv ("GDK_DISABLE_MEDIALIB"))
+ {
+ use_medialib = FALSE;
+ return;
+ }
+
+ /*
+ * The imaging functions we want to use were added in mediaLib version 2.
+ * So turn off mediaLib support if the user has an older version.
+ * mlib_version returns a string in this format:
+ *
+ * mediaLib:0210:20011101:v8plusa
+ * ^^^^^^^^ ^^^^ ^^^^^^^^ ^^^^^^^
+ * libname vers build ISALIST identifier
+ * date (in this case sparcv8plus+vis)
+ *
+ * The first 2 digits of the version are the major version. The 3rd digit
+ * is the minor version, and the 4th digit is the micro version. So the
+ * above string corresponds to version 2.1.0. In the following test we only
+ * care about the major version.
+ */
+ mlib_version_string = mlib_version ();
+
+ count = sysinfo (SI_ARCHITECTURE, &sys_info[0], 257);
+
+ if (count != -1)
+ {
+ if (strcmp (sys_info, "i386") == 0)
+ {
+ char *mlib_target_isa = &mlib_version_string[23];
-typedef void (*PixopsPixelFunc) (guchar *dest, int dest_x, int dest_channels, int dest_has_alpha,
- int src_has_alpha, int check_size, guint32 color1,
- guint32 color2,
- guint r, guint g, guint b, guint a);
+ /*
+ * For x86 processors mediaLib generic C implementation
+ * does not give any performance advantage so disable it
+ */
+ if (strncmp (mlib_target_isa, "sse", 3) != 0)
+ {
+ use_medialib = FALSE;
+ return;
+ }
+
+ /*
+ * For x86 processors use of libumem conflicts with
+ * mediaLib, so avoid using it.
+ */
+ if ((dlsym (RTLD_DEFAULT, "umem_alloc") != NULL) ||
+ (dlsym (RTLD_PROBE, "umem_alloc") != NULL) ||
+ (dlsym (RTLD_NEXT, "umem_alloc") != NULL) ||
+ (dlsym (RTLD_SELF, "umem_alloc") != NULL))
+ {
+ use_medialib = FALSE;
+ return;
+ }
+ }
+ }
+ else
+ {
+ /* Failed to get system architecture, disable mediaLib anyway */
+ use_medialib = FALSE;
+ return;
+ }
+}
+#endif
static int
get_check_shift (int check_size)
}
break;
}
- );
+ );
}
}
q0 = src0 + x_scaled * 4;
q1 = src1 + x_scaled * 4;
- pixel_weights = (int *)((char *)weights + ((x >> (SCALE_SHIFT - SUBSAMPLE_BITS - 4)) & (SUBSAMPLE_MASK << 4)));
+ pixel_weights = (int *)((char *)weights +
+ ((x >> (SCALE_SHIFT - SUBSAMPLE_BITS - 4)) & (SUBSAMPLE_MASK << 4)));
w1 = pixel_weights[0];
w2 = pixel_weights[1];
#ifdef USE_MMX
static guchar *
-composite_line_22_4a4_mmx_stub (int *weights, int n_x, int n_y,
- guchar *dest, int dest_x, guchar *dest_end, int dest_channels, int dest_has_alpha,
- guchar **src, int src_channels, gboolean src_has_alpha,
- int x_init, int x_step, int src_width,
- int check_size, guint32 color1, guint32 color2)
+composite_line_22_4a4_mmx_stub (int *weights, int n_x, int n_y, guchar *dest,
+ int dest_x, guchar *dest_end,
+ int dest_channels, int dest_has_alpha,
+ guchar **src, int src_channels,
+ gboolean src_has_alpha, int x_init,
+ int x_step, int src_width, int check_size,
+ guint32 color1, guint32 color2)
{
guint32 mmx_weights[16][8];
int j;
mmx_weights[j][7] = 0x00010001 * (weights[4*j + 3] >> 8);
}
- return _pixops_composite_line_22_4a4_mmx (mmx_weights, dest, src[0], src[1], x_step, dest_end, x_init);
+ return _pixops_composite_line_22_4a4_mmx (mmx_weights, dest, src[0], src[1],
+ x_step, dest_end, x_init);
}
#endif /* USE_MMX */
static void
-composite_pixel_color (guchar *dest, int dest_x, int dest_channels, int dest_has_alpha,
- int src_has_alpha, int check_size, guint32 color1, guint32 color2,
- guint r, guint g, guint b, guint a)
+composite_pixel_color (guchar *dest, int dest_x, int dest_channels,
+ int dest_has_alpha, int src_has_alpha, int check_size,
+ guint32 color1, guint32 color2, guint r, guint g,
+ guint b, guint a)
{
int dest_r, dest_g, dest_b;
int check_shift = get_check_shift (check_size);
}
static guchar *
-composite_line_color (int *weights, int n_x, int n_y,
- guchar *dest, int dest_x, guchar *dest_end, int dest_channels, int dest_has_alpha,
- guchar **src, int src_channels, gboolean src_has_alpha,
- int x_init, int x_step, int src_width,
- int check_size, guint32 color1, guint32 color2)
+composite_line_color (int *weights, int n_x, int n_y, guchar *dest,
+ int dest_x, guchar *dest_end, int dest_channels,
+ int dest_has_alpha, guchar **src, int src_channels,
+ gboolean src_has_alpha, int x_init, int x_step,
+ int src_width, int check_size, guint32 color1,
+ guint32 color2)
{
int x = x_init;
int i, j;
#ifdef USE_MMX
static guchar *
composite_line_color_22_4a4_mmx_stub (int *weights, int n_x, int n_y,
- guchar *dest, int dest_x, guchar *dest_end, int dest_channels, int dest_has_alpha,
- guchar **src, int src_channels, gboolean src_has_alpha,
+ guchar *dest, int dest_x,
+ guchar *dest_end, int dest_channels,
+ int dest_has_alpha, guchar **src,
+ int src_channels, gboolean src_has_alpha,
int x_init, int x_step, int src_width,
- int check_size, guint32 color1, guint32 color2)
+ int check_size, guint32 color1,
+ guint32 color2)
{
guint32 mmx_weights[16][8];
int check_shift = get_check_shift (check_size);
colors[2] = (color2 & 0xff00) << 8 | (color2 & 0xff);
colors[3] = (color2 & 0xff0000) >> 16;
- return _pixops_composite_line_color_22_4a4_mmx (mmx_weights, dest, src[0], src[1], x_step, dest_end, x_init,
- dest_x, check_shift, colors);
+ return _pixops_composite_line_color_22_4a4_mmx (mmx_weights, dest, src[0],
+ src[1], x_step, dest_end, x_init, dest_x, check_shift, colors);
}
#endif /* USE_MMX */
}
static guchar *
-scale_line (int *weights, int n_x, int n_y,
- guchar *dest, int dest_x, guchar *dest_end, int dest_channels, int dest_has_alpha,
- guchar **src, int src_channels, gboolean src_has_alpha,
- int x_init, int x_step, int src_width,
- int check_size, guint32 color1, guint32 color2)
+scale_line (int *weights, int n_x, int n_y, guchar *dest, int dest_x,
+ guchar *dest_end, int dest_channels, int dest_has_alpha,
+ guchar **src, int src_channels, gboolean src_has_alpha, int x_init,
+ int x_step, int src_width, int check_size, guint32 color1,
+ guint32 color2)
{
int x = x_init;
int i, j;
int x_scaled = x >> SCALE_SHIFT;
int *pixel_weights;
- pixel_weights = weights + ((x >> (SCALE_SHIFT - SUBSAMPLE_BITS)) & SUBSAMPLE_MASK) * n_x * n_y;
+ pixel_weights = weights +
+ ((x >> (SCALE_SHIFT - SUBSAMPLE_BITS)) & SUBSAMPLE_MASK) * n_x * n_y;
if (src_has_alpha)
{
#ifdef USE_MMX
static guchar *
-scale_line_22_33_mmx_stub (int *weights, int n_x, int n_y,
- guchar *dest, int dest_x, guchar *dest_end, int dest_channels, int dest_has_alpha,
- guchar **src, int src_channels, gboolean src_has_alpha,
- int x_init, int x_step, int src_width,
- int check_size, guint32 color1, guint32 color2)
+scale_line_22_33_mmx_stub (int *weights, int n_x, int n_y, guchar *dest,
+ int dest_x, guchar *dest_end, int dest_channels,
+ int dest_has_alpha, guchar **src, int src_channels,
+ gboolean src_has_alpha, int x_init, int x_step,
+ int src_width, int check_size, guint32 color1,
+ guint32 color2)
{
guint32 mmx_weights[16][8];
int j;
mmx_weights[j][7] = 0x00010001 * (weights[4*j + 3] >> 8);
}
- return _pixops_scale_line_22_33_mmx (mmx_weights, dest, src[0], src[1], x_step, dest_end, x_init);
+ return _pixops_scale_line_22_33_mmx (mmx_weights, dest, src[0], src[1],
+ x_step, dest_end, x_init);
}
#endif /* USE_MMX */
static guchar *
-scale_line_22_33 (int *weights, int n_x, int n_y,
- guchar *dest, int dest_x, guchar *dest_end, int dest_channels, int dest_has_alpha,
+scale_line_22_33 (int *weights, int n_x, int n_y, guchar *dest, int dest_x,
+ guchar *dest_end, int dest_channels, int dest_has_alpha,
guchar **src, int src_channels, gboolean src_has_alpha,
int x_init, int x_step, int src_width,
int check_size, guint32 color1, guint32 color2)
q0 = src0 + x_scaled * 3;
q1 = src1 + x_scaled * 3;
- pixel_weights = weights + ((x >> (SCALE_SHIFT - SUBSAMPLE_BITS)) & SUBSAMPLE_MASK) * 4;
+ pixel_weights = weights +
+ ((x >> (SCALE_SHIFT - SUBSAMPLE_BITS)) & SUBSAMPLE_MASK) * 4;
w1 = pixel_weights[0];
w2 = pixel_weights[1];
}
static void
-process_pixel (int *weights, int n_x, int n_y,
- guchar *dest, int dest_x, int dest_channels, int dest_has_alpha,
- guchar **src, int src_channels, gboolean src_has_alpha,
- int x_start, int src_width,
- int check_size, guint32 color1, guint32 color2,
+process_pixel (int *weights, int n_x, int n_y, guchar *dest, int dest_x,
+ int dest_channels, int dest_has_alpha, guchar **src,
+ int src_channels, gboolean src_has_alpha, int x_start,
+ int src_width, int check_size, guint32 color1, guint32 color2,
PixopsPixelFunc pixel_func)
{
unsigned int r = 0, g = 0, b = 0, a = 0;
}
}
- (*pixel_func) (dest, dest_x, dest_channels, dest_has_alpha, src_has_alpha, check_size, color1, color2, r, g, b, a);
+ (*pixel_func) (dest, dest_x, dest_channels, dest_has_alpha, src_has_alpha,
+ check_size, color1, color2, r, g, b, a);
}
static void
int scaled_x_offset = floor (filter->x.offset * (1 << SCALE_SHIFT));
- /* Compute the index where we run off the end of the source buffer. The furthest
- * source pixel we access at index i is:
+ /* Compute the index where we run off the end of the source buffer. The
+ * furthest source pixel we access at index i is:
*
* ((render_x0 + i) * x_step + scaled_x_offset) >> SCALE_SHIFT + filter->x.n - 1
*
- * So, run_end_index is the smallest i for which this pixel is src_width, i.e, for which:
+ * So, run_end_index is the smallest i for which this pixel is src_width,
+ * i.e, for which:
*
* (i + render_x0) * x_step >= ((src_width - filter->x.n + 1) << SCALE_SHIFT) - scaled_x_offset
*
}
new_outbuf = (*line_func) (run_weights, filter->x.n, filter->y.n,
- outbuf, dest_x,
- dest_buf + dest_rowstride * i + run_end_index * dest_channels,
+ outbuf, dest_x, dest_buf + dest_rowstride *
+ i + run_end_index * dest_channels,
dest_channels, dest_has_alpha,
line_bufs, src_channels, src_has_alpha,
- x, x_step, src_width, check_size, tcolor1, tcolor2);
+ x, x_step, src_width, check_size, tcolor1,
+ tcolor2);
dest_x += (new_outbuf - outbuf) / dest_channels;
}
}
-void
-_pixops_composite_color (guchar *dest_buf,
- int render_x0,
- int render_y0,
- int render_x1,
- int render_y1,
- int dest_rowstride,
- int dest_channels,
- gboolean dest_has_alpha,
- const guchar *src_buf,
- int src_width,
- int src_height,
- int src_rowstride,
- int src_channels,
- gboolean src_has_alpha,
- double scale_x,
- double scale_y,
- PixopsInterpType interp_type,
- int overall_alpha,
- int check_x,
- int check_y,
- int check_size,
- guint32 color1,
- guint32 color2)
+static void
+_pixops_composite_color_real (guchar *dest_buf,
+ int render_x0,
+ int render_y0,
+ int render_x1,
+ int render_y1,
+ int dest_rowstride,
+ int dest_channels,
+ gboolean dest_has_alpha,
+ const guchar *src_buf,
+ int src_width,
+ int src_height,
+ int src_rowstride,
+ int src_channels,
+ gboolean src_has_alpha,
+ double scale_x,
+ double scale_y,
+ PixopsInterpType interp_type,
+ int overall_alpha,
+ int check_x,
+ int check_y,
+ int check_size,
+ guint32 color1,
+ guint32 color2)
{
PixopsFilter filter;
PixopsLineFunc line_func;
if (scale_x == 0 || scale_y == 0)
return;
- if (!src_has_alpha && overall_alpha == 255)
- {
- _pixops_scale (dest_buf, render_x0, render_y0, render_x1, render_y1,
- dest_rowstride, dest_channels, dest_has_alpha,
- src_buf, src_width, src_height, src_rowstride, src_channels,
- src_has_alpha, scale_x, scale_y, interp_type);
- return;
- }
-
if (interp_type == PIXOPS_INTERP_NEAREST)
{
- pixops_composite_color_nearest (dest_buf, render_x0, render_y0, render_x1, render_y1,
- dest_rowstride, dest_channels, dest_has_alpha,
- src_buf, src_width, src_height, src_rowstride, src_channels, src_has_alpha,
- scale_x, scale_y, overall_alpha,
- check_x, check_y, check_size, color1, color2);
+ pixops_composite_color_nearest (dest_buf, render_x0, render_y0,
+ render_x1, render_y1, dest_rowstride,
+ dest_channels, dest_has_alpha, src_buf,
+ src_width, src_height, src_rowstride,
+ src_channels, src_has_alpha, scale_x,
+ scale_y, overall_alpha, check_x, check_y,
+ check_size, color1, color2);
return;
}
#ifdef USE_MMX
if (filter.x.n == 2 && filter.y.n == 2 &&
- dest_channels == 4 && src_channels == 4 && src_has_alpha && !dest_has_alpha && found_mmx)
+ dest_channels == 4 && src_channels == 4 &&
+ src_has_alpha && !dest_has_alpha && found_mmx)
line_func = composite_line_color_22_4a4_mmx_stub;
else
#endif
g_free (filter.y.weights);
}
+void
+_pixops_composite_color (guchar *dest_buf,
+ int dest_width,
+ int dest_height,
+ int dest_rowstride,
+ int dest_channels,
+ gboolean dest_has_alpha,
+ const guchar *src_buf,
+ int src_width,
+ int src_height,
+ int src_rowstride,
+ int src_channels,
+ gboolean src_has_alpha,
+ int dest_x,
+ int dest_y,
+ int dest_region_width,
+ int dest_region_height,
+ double offset_x,
+ double offset_y,
+ double scale_x,
+ double scale_y,
+ PixopsInterpType interp_type,
+ int overall_alpha,
+ int check_x,
+ int check_y,
+ int check_size,
+ guint32 color1,
+ guint32 color2)
+{
+ guchar *new_dest_buf;
+ int render_x0;
+ int render_y0;
+ int render_x1;
+ int render_y1;
+
+ if (!src_has_alpha && overall_alpha == 255)
+ {
+ _pixops_scale (dest_buf, dest_width, dest_height, dest_rowstride,
+ dest_channels, dest_has_alpha, src_buf, src_width,
+ src_height, src_rowstride, src_channels, src_has_alpha,
+ dest_x, dest_y, dest_region_width, dest_region_height,
+ offset_x, offset_y, scale_x, scale_y, interp_type);
+ return;
+ }
+
+ new_dest_buf = dest_buf + dest_y * dest_rowstride + dest_x *
+ dest_channels;
+ render_x0 = dest_x - offset_x;
+ render_y0 = dest_y - offset_y;
+ render_x1 = dest_x + dest_region_width - offset_x;
+ render_y1 = dest_y + dest_region_height - offset_y;
+
+ _pixops_composite_color_real (new_dest_buf, render_x0, render_y0, render_x1,
+ render_y1, dest_rowstride, dest_channels,
+ dest_has_alpha, src_buf, src_width,
+ src_height, src_rowstride, src_channels,
+ src_has_alpha, scale_x, scale_y,
+ (PixopsInterpType)interp_type, overall_alpha,
+ check_x, check_y, check_size, color1, color2);
+}
+
/**
- * _pixops_composite:
+ * _pixops_composite_real:
* @dest_buf: pointer to location to store result
* @render_x0: x0 of region of scaled source to store into @dest_buf
* @render_y0: y0 of region of scaled source to store into @dest_buf
* Scale source buffer by scale_x / scale_y, then composite a given rectangle
* of the result into the destination buffer.
**/
-void
-_pixops_composite (guchar *dest_buf,
- int render_x0,
- int render_y0,
- int render_x1,
- int render_y1,
- int dest_rowstride,
- int dest_channels,
- gboolean dest_has_alpha,
- const guchar *src_buf,
- int src_width,
- int src_height,
- int src_rowstride,
- int src_channels,
- gboolean src_has_alpha,
- double scale_x,
- double scale_y,
- PixopsInterpType interp_type,
- int overall_alpha)
+static void
+_pixops_composite_real (guchar *dest_buf,
+ int render_x0,
+ int render_y0,
+ int render_x1,
+ int render_y1,
+ int dest_rowstride,
+ int dest_channels,
+ gboolean dest_has_alpha,
+ const guchar *src_buf,
+ int src_width,
+ int src_height,
+ int src_rowstride,
+ int src_channels,
+ gboolean src_has_alpha,
+ double scale_x,
+ double scale_y,
+ PixopsInterpType interp_type,
+ int overall_alpha)
{
PixopsFilter filter;
PixopsLineFunc line_func;
if (scale_x == 0 || scale_y == 0)
return;
- if (!src_has_alpha && overall_alpha == 255)
- {
- _pixops_scale (dest_buf, render_x0, render_y0, render_x1, render_y1,
- dest_rowstride, dest_channels, dest_has_alpha,
- src_buf, src_width, src_height, src_rowstride, src_channels,
- src_has_alpha, scale_x, scale_y, interp_type);
- return;
- }
-
if (interp_type == PIXOPS_INTERP_NEAREST)
{
- pixops_composite_nearest (dest_buf, render_x0, render_y0, render_x1, render_y1,
- dest_rowstride, dest_channels, dest_has_alpha,
- src_buf, src_width, src_height, src_rowstride, src_channels,
- src_has_alpha, scale_x, scale_y, overall_alpha);
+ pixops_composite_nearest (dest_buf, render_x0, render_y0, render_x1,
+ render_y1, dest_rowstride, dest_channels,
+ dest_has_alpha, src_buf, src_width, src_height,
+ src_rowstride, src_channels, src_has_alpha,
+ scale_x, scale_y, overall_alpha);
return;
}
filter.overall_alpha = overall_alpha / 255.;
make_weights (&filter, interp_type, scale_x, scale_y);
- if (filter.x.n == 2 && filter.y.n == 2 &&
- dest_channels == 4 && src_channels == 4 && src_has_alpha && !dest_has_alpha)
+ if (filter.x.n == 2 && filter.y.n == 2 && dest_channels == 4 &&
+ src_channels == 4 && src_has_alpha && !dest_has_alpha)
{
#ifdef USE_MMX
if (found_mmx)
}
void
-_pixops_scale (guchar *dest_buf,
- int render_x0,
- int render_y0,
- int render_x1,
- int render_y1,
- int dest_rowstride,
- int dest_channels,
- gboolean dest_has_alpha,
- const guchar *src_buf,
- int src_width,
- int src_height,
- int src_rowstride,
- int src_channels,
- gboolean src_has_alpha,
- double scale_x,
- double scale_y,
- PixopsInterpType interp_type)
+_pixops_composite (guchar *dest_buf,
+ int dest_width,
+ int dest_height,
+ int dest_rowstride,
+ int dest_channels,
+ int dest_has_alpha,
+ const guchar *src_buf,
+ int src_width,
+ int src_height,
+ int src_rowstride,
+ int src_channels,
+ int src_has_alpha,
+ int dest_x,
+ int dest_y,
+ int dest_region_width,
+ int dest_region_height,
+ double offset_x,
+ double offset_y,
+ double scale_x,
+ double scale_y,
+ PixopsInterpType interp_type,
+ int overall_alpha)
+{
+ guchar *new_dest_buf;
+ int render_x0;
+ int render_y0;
+ int render_x1;
+ int render_y1;
+
+ if (!src_has_alpha && overall_alpha == 255)
+ {
+ _pixops_scale (dest_buf, dest_width, dest_height, dest_rowstride,
+ dest_channels, dest_has_alpha, src_buf, src_width,
+ src_height, src_rowstride, src_channels, src_has_alpha,
+ dest_x, dest_y, dest_region_width, dest_region_height,
+ offset_x, offset_y, scale_x, scale_y, interp_type);
+ return;
+ }
+
+#ifdef USE_MEDIALIB
+ pixops_medialib_composite (dest_buf, dest_width, dest_height, dest_rowstride,
+ dest_channels, dest_has_alpha, src_buf,
+ src_width, src_height, src_rowstride,
+ src_channels, src_has_alpha, dest_x, dest_y,
+ dest_region_width, dest_region_height, offset_x,
+ offset_y, scale_x, scale_y,
+ (PixopsInterpType)interp_type, overall_alpha);
+ return;
+#endif
+
+ new_dest_buf = dest_buf + dest_y * dest_rowstride + dest_x * dest_channels;
+ render_x0 = dest_x - offset_x;
+ render_y0 = dest_y - offset_y;
+ render_x1 = dest_x + dest_region_width - offset_x;
+ render_y1 = dest_y + dest_region_height - offset_y;
+
+ _pixops_composite_real (new_dest_buf, render_x0, render_y0, render_x1,
+ render_y1, dest_rowstride, dest_channels,
+ dest_has_alpha, src_buf, src_width, src_height,
+ src_rowstride, src_channels, src_has_alpha, scale_x,
+ scale_y, (PixopsInterpType)interp_type,
+ overall_alpha);
+}
+
+#ifdef USE_MEDIALIB
+static void
+medialib_get_interpolation (mlInterp * ml_interp,
+ PixopsInterpType interp_type,
+ double scale_x,
+ double scale_y,
+ double overall_alpha)
+{
+ mlib_s32 leftPadding, topPadding;
+ ml_interp->interp_table = NULL;
+
+ /*
+ * medialib 2.1 and later supports scaling with user-defined interpolation
+ * tables, so this logic is used.
+ *
+ * bilinear_magnify_make_weights builds an interpolation table of size 2x2 if
+ * the scale factor >= 1.0 and "ceil (1.0 + 1.0/scale)" otherwise. These map
+ * most closely to MLIB_BILINEAR, which uses an interpolation table of size
+ * 2x2.
+ *
+ * tile_make_weights builds an interpolation table of size 2x2 if the scale
+ * factor >= 1.0 and "ceil (1.0 + 1.0/scale)" otherwise. These map most
+ * closely to MLIB_BILINEAR, which uses an interpolation table of size 2x2.
+ *
+ * bilinear_box_make_weights builds an interpolation table of size 4x4 if the
+ * scale factor >= 1.0 and "ceil (1.0 + 1.0/scale)" otherwise. These map most
+ * closely to MLIB_BICUBIC, which uses an interpolation table of size 4x4.
+ *
+ * PIXOPS_INTERP_NEAREST calls pixops_scale_nearest which does not use an
+ * interpolation table. This maps to MLIB_NEAREST.
+ */
+ switch (interp_type)
+ {
+ case PIXOPS_INTERP_BILINEAR:
+ bilinear_magnify_make_weights (&(ml_interp->po_filter.x), scale_x);
+ bilinear_magnify_make_weights (&(ml_interp->po_filter.y), scale_y);
+ leftPadding = 0;
+ topPadding = 0;
+
+ if (scale_x <= 1.0)
+ ml_interp->tx = 0.5 * (1 - scale_x);
+ else
+ ml_interp->tx = 0.0;
+
+ if (scale_y <= 1.0)
+ ml_interp->ty = 0.5 * (1 - scale_y);
+ else
+ ml_interp->ty = 0.0;
+
+ break;
+
+ case PIXOPS_INTERP_TILES:
+ tile_make_weights (&(ml_interp->po_filter.x), scale_x);
+ tile_make_weights (&(ml_interp->po_filter.y), scale_y);
+ leftPadding = 0;
+ topPadding = 0;
+ ml_interp->tx = 0.5 * (1 - scale_x);
+ ml_interp->ty = 0.5 * (1 - scale_y);
+ break;
+
+ case PIXOPS_INTERP_HYPER:
+ bilinear_box_make_weights (&(ml_interp->po_filter.x), scale_x);
+ bilinear_box_make_weights (&(ml_interp->po_filter.y), scale_y);
+ leftPadding = 1;
+ topPadding = 1;
+ ml_interp->tx = 0.5 * (1 - scale_x);
+ ml_interp->ty = 0.5 * (1 - scale_y);
+ break;
+
+ case PIXOPS_INTERP_NEAREST:
+ default:
+ /*
+ * Note that this function should not be called in the
+ * PIXOPS_INTERP_NEAREST case since it does not use an interpolation
+ * table.
+ */
+ g_assert_not_reached ();
+ break;
+ }
+
+ /*
+ * If overall_alpha is not 1.0, then multiply the vectors built by the
+ * sqrt (overall_alpha). This will cause overall_alpha to get evenly
+ * blended across both axis.
+ *
+ * Note there is no need to multiply the vectors built by the various
+ * make-weight functions by sqrt (overall_alpha) since the make-weight
+ * functions are called with overall_alpha hardcoded to 1.0.
+ */
+ if (overall_alpha != 1.0)
+ {
+ double sqrt_alpha = sqrt (overall_alpha);
+ int i;
+
+ for (i=0; i < SUBSAMPLE * ml_interp->po_filter.x.n; i++)
+ ml_interp->po_filter.x.weights[i] *= sqrt_alpha;
+ for (i=0; i < SUBSAMPLE * ml_interp->po_filter.y.n; i++)
+ ml_interp->po_filter.y.weights[i] *= sqrt_alpha;
+ }
+
+ ml_interp->interp_table = (void *) mlib_ImageInterpTableCreate (MLIB_DOUBLE,
+ ml_interp->po_filter.x.n, ml_interp->po_filter.y.n, leftPadding,
+ topPadding, SUBSAMPLE_BITS, SUBSAMPLE_BITS, 8,
+ ml_interp->po_filter.x.weights, ml_interp->po_filter.y.weights);
+
+ g_free (ml_interp->po_filter.x.weights);
+ g_free (ml_interp->po_filter.y.weights);
+}
+
+static void
+pixops_medialib_composite (guchar *dest_buf,
+ int dest_width,
+ int dest_height,
+ int dest_rowstride,
+ int dest_channels,
+ int dest_has_alpha,
+ const guchar *src_buf,
+ int src_width,
+ int src_height,
+ int src_rowstride,
+ int src_channels,
+ int src_has_alpha,
+ int dest_x,
+ int dest_y,
+ int dest_region_width,
+ int dest_region_height,
+ double offset_x,
+ double offset_y,
+ double scale_x,
+ double scale_y,
+ PixopsInterpType interp_type,
+ int overall_alpha)
+{
+ mlib_blend blend;
+ g_return_if_fail (!(dest_channels == 3 && dest_has_alpha));
+ g_return_if_fail (!(src_channels == 3 && src_has_alpha));
+
+ if (scale_x == 0 || scale_y == 0)
+ return;
+
+ if (!medialib_initialized)
+ _pixops_use_medialib ();
+
+ if (!use_medialib)
+ {
+ /* Use non-mediaLib version */
+ _pixops_composite_real (dest_buf + dest_y * dest_rowstride + dest_x *
+ dest_channels, dest_x - offset_x, dest_y -
+ offset_y, dest_x + dest_region_width - offset_x,
+ dest_y + dest_region_height - offset_y,
+ dest_rowstride, dest_channels, dest_has_alpha,
+ src_buf, src_width, src_height, src_rowstride,
+ src_channels, src_has_alpha, scale_x, scale_y,
+ interp_type, overall_alpha);
+ }
+ else
+ {
+ mlInterp ml_interp;
+ mlib_image img_src, img_dest;
+ double ml_offset_x, ml_offset_y;
+
+ if (!src_has_alpha && overall_alpha == 255 &&
+ dest_channels <= src_channels)
+ {
+ pixops_medialib_scale (dest_buf, dest_region_width,
+ dest_region_height, dest_rowstride,
+ dest_channels, dest_has_alpha, src_buf,
+ src_width, src_height, src_rowstride,
+ src_channels, src_has_alpha, dest_x, dest_y,
+ dest_region_width, dest_region_height,
+ offset_x, offset_y, scale_x, scale_y,
+ interp_type);
+ return;
+ }
+
+ mlib_ImageSetStruct (&img_src, MLIB_BYTE, src_channels,
+ src_width, src_height, src_rowstride, src_buf);
+
+ if (dest_x == 0 && dest_y == 0 &&
+ dest_width == dest_region_width &&
+ dest_height == dest_region_height)
+ {
+ mlib_ImageSetStruct (&img_dest, MLIB_BYTE, dest_channels,
+ dest_width, dest_height, dest_rowstride,
+ dest_buf);
+ }
+ else
+ {
+ mlib_u8 *data = dest_buf + (dest_y * dest_rowstride) +
+ (dest_x * dest_channels);
+
+ mlib_ImageSetStruct (&img_dest, MLIB_BYTE, dest_channels,
+ dest_region_width, dest_region_height,
+ dest_rowstride, data);
+ }
+
+ ml_offset_x = floor (offset_x) - dest_x;
+ ml_offset_y = floor (offset_y) - dest_y;
+
+ if (interp_type == PIXOPS_INTERP_NEAREST)
+ {
+ blend = src_has_alpha ? MLIB_BLEND_GTK_SRC_OVER2 : MLIB_BLEND_GTK_SRC;
+
+ mlib_ImageZoomTranslateBlend (&img_dest,
+ &img_src,
+ scale_x,
+ scale_y,
+ ml_offset_x,
+ ml_offset_y,
+ MLIB_NEAREST,
+ MLIB_EDGE_SRC_EXTEND_INDEF,
+ blend,
+ overall_alpha,
+ 1);
+ }
+ else
+ {
+ blend = src_has_alpha ? MLIB_BLEND_GTK_SRC_OVER : MLIB_BLEND_GTK_SRC;
+
+ if (interp_type == PIXOPS_INTERP_BILINEAR &&
+ scale_x > 1.0 && scale_y > 1.0)
+ {
+ mlib_ImageZoomTranslateBlend (&img_dest,
+ &img_src,
+ scale_x,
+ scale_y,
+ ml_offset_x,
+ ml_offset_y,
+ MLIB_BILINEAR,
+ MLIB_EDGE_SRC_EXTEND_INDEF,
+ blend,
+ overall_alpha,
+ 1);
+ }
+ else
+ {
+ medialib_get_interpolation (&ml_interp, interp_type, scale_x,
+ scale_y, overall_alpha/255.0);
+
+ if (ml_interp.interp_table != NULL)
+ {
+ mlib_ImageZoomTranslateTableBlend (&img_dest,
+ &img_src,
+ scale_x,
+ scale_y,
+ ml_offset_x + ml_interp.tx,
+ ml_offset_y + ml_interp.ty,
+ ml_interp.interp_table,
+ MLIB_EDGE_SRC_EXTEND_INDEF,
+ blend,
+ 1);
+ mlib_ImageInterpTableDelete (ml_interp.interp_table);
+ }
+ else
+ {
+ /* Should not happen - Use non-mediaLib version */
+ _pixops_composite_real (dest_buf + dest_y * dest_rowstride +
+ dest_x * dest_channels,
+ dest_x - offset_x, dest_y - offset_y,
+ dest_x + dest_region_width - offset_x,
+ dest_y + dest_region_height - offset_y,
+ dest_rowstride, dest_channels,
+ dest_has_alpha, src_buf, src_width,
+ src_height, src_rowstride,
+ src_channels, src_has_alpha, scale_x,
+ scale_y, interp_type, overall_alpha);
+ }
+ }
+ }
+ }
+}
+#endif
+
+static void
+_pixops_scale_real (guchar *dest_buf,
+ int render_x0,
+ int render_y0,
+ int render_x1,
+ int render_y1,
+ int dest_rowstride,
+ int dest_channels,
+ gboolean dest_has_alpha,
+ const guchar *src_buf,
+ int src_width,
+ int src_height,
+ int src_rowstride,
+ int src_channels,
+ gboolean src_has_alpha,
+ double scale_x,
+ double scale_y,
+ PixopsInterpType interp_type)
{
PixopsFilter filter;
PixopsLineFunc line_func;
if (interp_type == PIXOPS_INTERP_NEAREST)
{
- pixops_scale_nearest (dest_buf, render_x0, render_y0, render_x1, render_y1,
- dest_rowstride, dest_channels, dest_has_alpha,
- src_buf, src_width, src_height, src_rowstride, src_channels, src_has_alpha,
+ pixops_scale_nearest (dest_buf, render_x0, render_y0, render_x1,
+ render_y1, dest_rowstride, dest_channels,
+ dest_has_alpha, src_buf, src_width, src_height,
+ src_rowstride, src_channels, src_has_alpha,
scale_x, scale_y);
return;
}
g_free (filter.y.weights);
}
+void
+_pixops_scale (guchar *dest_buf,
+ int dest_width,
+ int dest_height,
+ int dest_rowstride,
+ int dest_channels,
+ int dest_has_alpha,
+ const guchar *src_buf,
+ int src_width,
+ int src_height,
+ int src_rowstride,
+ int src_channels,
+ int src_has_alpha,
+ int dest_x,
+ int dest_y,
+ int dest_region_width,
+ int dest_region_height,
+ double offset_x,
+ double offset_y,
+ double scale_x,
+ double scale_y,
+ PixopsInterpType interp_type)
+{
+ guchar *new_dest_buf;
+ int render_x0;
+ int render_y0;
+ int render_x1;
+ int render_y1;
+
+#ifdef USE_MEDIALIB
+ pixops_medialib_scale (dest_buf, dest_width, dest_height, dest_rowstride,
+ dest_channels, dest_has_alpha, src_buf, src_width,
+ src_height, src_rowstride, src_channels,
+ src_has_alpha, dest_x, dest_y, dest_region_width,
+ dest_region_height, offset_x, offset_y, scale_x,
+ scale_y, (PixopsInterpType)interp_type);
+ return;
+#endif
+
+ new_dest_buf = dest_buf + dest_y * dest_rowstride + dest_x * dest_channels;
+ render_x0 = dest_x - offset_x;
+ render_y0 = dest_y - offset_y;
+ render_x1 = dest_x + dest_region_width - offset_x;
+ render_y1 = dest_y + dest_region_height - offset_y;
+
+ _pixops_scale_real (new_dest_buf, render_x0, render_y0, render_x1,
+ render_y1, dest_rowstride, dest_channels,
+ dest_has_alpha, src_buf, src_width, src_height,
+ src_rowstride, src_channels, src_has_alpha,
+ scale_x, scale_y, (PixopsInterpType)interp_type);
+}
+
+#ifdef USE_MEDIALIB
+static void
+pixops_medialib_scale (guchar *dest_buf,
+ int dest_width,
+ int dest_height,
+ int dest_rowstride,
+ int dest_channels,
+ int dest_has_alpha,
+ const guchar *src_buf,
+ int src_width,
+ int src_height,
+ int src_rowstride,
+ int src_channels,
+ int src_has_alpha,
+ int dest_x,
+ int dest_y,
+ int dest_region_width,
+ int dest_region_height,
+ double offset_x,
+ double offset_y,
+ double scale_x,
+ double scale_y,
+ PixopsInterpType interp_type)
+{
+ if (scale_x == 0 || scale_y == 0)
+ return;
+
+ if (!medialib_initialized)
+ _pixops_use_medialib ();
+
+ /*
+ * We no longer support mediaLib 2.1 because it has a core dumping problem
+ * in the mlib_ImageZoomTranslateTable function that has been corrected in
+ * 2.2. Although the mediaLib_zoom function could be used, it does not
+ * work properly if the source and destination images have different
+ * values for "has_alpha" or "num_channels". The complicated if-logic
+ * required to support both versions is not worth supporting
+ * mediaLib 2.1 moving forward.
+ */
+ if (!use_medialib)
+ {
+ _pixops_scale_real (dest_buf + dest_y * dest_rowstride + dest_x *
+ dest_channels, dest_x - offset_x, dest_y - offset_y,
+ dest_x + dest_region_width - offset_x,
+ dest_y + dest_region_height - offset_y,
+ dest_rowstride, dest_channels, dest_has_alpha,
+ src_buf, src_width, src_height, src_rowstride,
+ src_channels, src_has_alpha, scale_x, scale_y,
+ interp_type);
+ }
+ else
+ {
+ mlInterp ml_interp;
+ mlib_image img_orig_src, img_src, img_dest;
+ double ml_offset_x, ml_offset_y;
+ guchar *tmp_buf = NULL;
+
+ mlib_ImageSetStruct (&img_orig_src, MLIB_BYTE, src_channels, src_width,
+ src_height, src_rowstride, src_buf);
+
+ if (dest_x == 0 && dest_y == 0 &&
+ dest_width == dest_region_width &&
+ dest_height == dest_region_height)
+ {
+ mlib_ImageSetStruct (&img_dest, MLIB_BYTE, dest_channels,
+ dest_width, dest_height, dest_rowstride,
+ dest_buf);
+ }
+ else
+ {
+ mlib_u8 *data = dest_buf + (dest_y * dest_rowstride) +
+ (dest_x * dest_channels);
+
+ mlib_ImageSetStruct (&img_dest, MLIB_BYTE, dest_channels,
+ dest_region_width, dest_region_height,
+ dest_rowstride, data);
+ }
+
+ ml_offset_x = floor (offset_x) - dest_x;
+ ml_offset_y = floor (offset_y) - dest_y;
+
+ /*
+ * Note that zoomTranslate and zoomTranslateTable are faster
+ * than zoomTranslateBlend and zoomTranslateTableBlend. However
+ * the faster functions only work in the following case:
+ *
+ * if (src_channels == dest_channels &&
+ * (!src_alpha && interp_table != PIXOPS_INTERP_NEAREST))
+ *
+ * We use the faster versions if we can.
+ *
+ * Note when the interp_type is BILINEAR and the interpolation
+ * table will be size 2x2 (when both x/y scale factors > 1.0),
+ * then we do not bother building the interpolation table. In
+ * this case we can just use MLIB_BILINEAR, which is faster than
+ * using a specified interpolation table.
+ */
+ img_src = img_orig_src;
+
+ if (!src_has_alpha)
+ {
+ if (src_channels > dest_channels)
+ {
+ int channels = 3;
+ int rowstride = (channels * src_width + 3) & ~3;
+
+ tmp_buf = g_malloc (src_rowstride * src_height);
+
+ if (src_buf != NULL)
+ {
+ src_channels = channels;
+ src_rowstride = rowstride;
+
+ mlib_ImageSetStruct (&img_src, MLIB_BYTE, src_channels,
+ src_width, src_height, src_rowstride,
+ tmp_buf);
+ mlib_ImageChannelExtract (&img_src, &img_orig_src, 0xE);
+ }
+ }
+ }
+
+ if (interp_type == PIXOPS_INTERP_NEAREST)
+ {
+ if (src_channels == dest_channels)
+ {
+ mlib_ImageZoomTranslate (&img_dest,
+ &img_src,
+ scale_x,
+ scale_y,
+ ml_offset_x,
+ ml_offset_y,
+ MLIB_NEAREST,
+ MLIB_EDGE_SRC_EXTEND_INDEF);
+ }
+ else
+ {
+ mlib_ImageZoomTranslateBlend (&img_dest,
+ &img_src,
+ scale_x,
+ scale_y,
+ ml_offset_x,
+ ml_offset_y,
+ MLIB_NEAREST,
+ MLIB_EDGE_SRC_EXTEND_INDEF,
+ MLIB_BLEND_GTK_SRC,
+ 1.0,
+ 1);
+ }
+ }
+ else if (src_channels == dest_channels && !src_has_alpha)
+ {
+ if (interp_type == PIXOPS_INTERP_BILINEAR &&
+ scale_x > 1.0 && scale_y > 1.0)
+ {
+ mlib_ImageZoomTranslate (&img_dest,
+ &img_src,
+ scale_x,
+ scale_y,
+ ml_offset_x,
+ ml_offset_y,
+ MLIB_BILINEAR,
+ MLIB_EDGE_SRC_EXTEND_INDEF);
+ }
+ else
+ {
+ medialib_get_interpolation (&ml_interp, interp_type,
+ scale_x, scale_y, 1.0);
+
+ if (ml_interp.interp_table != NULL)
+ {
+ mlib_ImageZoomTranslateTable (&img_dest,
+ &img_src,
+ scale_x,
+ scale_y,
+ ml_offset_x + ml_interp.tx,
+ ml_offset_y + ml_interp.ty,
+ ml_interp.interp_table,
+ MLIB_EDGE_SRC_EXTEND_INDEF);
+
+ mlib_ImageInterpTableDelete (ml_interp.interp_table);
+ }
+ else
+ {
+ /* Should not happen. */
+ mlib_filter ml_filter;
+
+ switch (interp_type)
+ {
+ case PIXOPS_INTERP_BILINEAR:
+ ml_filter = MLIB_BILINEAR;
+ break;
+
+ case PIXOPS_INTERP_TILES:
+ ml_filter = MLIB_BILINEAR;
+ break;
+
+ case PIXOPS_INTERP_HYPER:
+ ml_filter = MLIB_BICUBIC;
+ break;
+ }
+
+ mlib_ImageZoomTranslate (&img_dest,
+ &img_src,
+ scale_x,
+ scale_y,
+ ml_offset_x,
+ ml_offset_y,
+ ml_filter,
+ MLIB_EDGE_SRC_EXTEND_INDEF);
+ }
+ }
+ }
+
+ /* Deal with case where src_channels != dest_channels || src_has_alpha */
+ else if (interp_type == PIXOPS_INTERP_BILINEAR &&
+ scale_x > 1.0 && scale_y > 1.0)
+ {
+ mlib_ImageZoomTranslateBlend (&img_dest,
+ &img_src,
+ scale_x,
+ scale_y,
+ ml_offset_x,
+ ml_offset_y,
+ MLIB_BILINEAR,
+ MLIB_EDGE_SRC_EXTEND_INDEF,
+ MLIB_BLEND_GTK_SRC,
+ 1.0,
+ 1);
+ }
+ else
+ {
+ medialib_get_interpolation (&ml_interp, interp_type,
+ scale_x, scale_y, 1.0);
+
+ if (ml_interp.interp_table != NULL)
+ {
+ mlib_ImageZoomTranslateTableBlend (&img_dest,
+ &img_src,
+ scale_x,
+ scale_y,
+ ml_offset_x + ml_interp.tx,
+ ml_offset_y + ml_interp.ty,
+ ml_interp.interp_table,
+ MLIB_EDGE_SRC_EXTEND_INDEF,
+ MLIB_BLEND_GTK_SRC,
+ 1);
+ mlib_ImageInterpTableDelete (ml_interp.interp_table);
+ }
+ else
+ {
+ mlib_filter ml_filter;
+
+ switch (interp_type)
+ {
+ case PIXOPS_INTERP_BILINEAR:
+ ml_filter = MLIB_BILINEAR;
+ break;
+
+ case PIXOPS_INTERP_TILES:
+ ml_filter = MLIB_BILINEAR;
+ break;
+
+ case PIXOPS_INTERP_HYPER:
+ ml_filter = MLIB_BICUBIC;
+ break;
+ }
+
+ mlib_ImageZoomTranslate (&img_dest,
+ &img_src,
+ scale_x,
+ scale_y,
+ ml_offset_x,
+ ml_offset_y,
+ ml_filter,
+ MLIB_EDGE_SRC_EXTEND_INDEF);
+ }
+ }
+
+ if (tmp_buf != NULL)
+ g_free (tmp_buf);
+ }
+}
+#endif
projects / gtk4.git / commitdiff