[gimp/metadata-browser] app: completely port gradient rendering to GEGL
- From: Roman Joost <romanofski src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gimp/metadata-browser] app: completely port gradient rendering to GEGL
- Date: Wed, 12 Sep 2012 23:55:28 +0000 (UTC)
commit 8f357c6a3ddc99545e811bb6f689a3bba4707125
Author: Michael Natterer <mitch gimp org>
Date: Mon Apr 23 19:11:08 2012 +0200
app: completely port gradient rendering to GEGL
app/core/gimpdrawable-blend.c | 212 ++++++++++++----------------------------
1 files changed, 64 insertions(+), 148 deletions(-)
---
diff --git a/app/core/gimpdrawable-blend.c b/app/core/gimpdrawable-blend.c
index aded41b..b4ab129 100644
--- a/app/core/gimpdrawable-blend.c
+++ b/app/core/gimpdrawable-blend.c
@@ -29,9 +29,6 @@
#include "core-types.h"
-#include "base/pixel-processor.h"
-#include "base/pixel-region.h"
-
#include "gegl/gimp-gegl-utils.h"
#include "gimp.h"
@@ -125,21 +122,20 @@ static GeglBuffer * gradient_precalc_shapeburst (GimpImage *image,
gdouble dist,
GimpProgress *progress);
-static void gradient_render_pixel (gdouble x,
- gdouble y,
- GimpRGB *color,
- gpointer render_data);
-static void gradient_put_pixel (gint x,
- gint y,
- GimpRGB *color,
- gpointer put_pixel_data);
+static void gradient_render_pixel (gdouble x,
+ gdouble y,
+ GimpRGB *color,
+ gpointer render_data);
+static void gradient_put_pixel (gint x,
+ gint y,
+ GimpRGB *color,
+ gpointer put_pixel_data);
static void gradient_fill_region (GimpImage *image,
GimpDrawable *drawable,
GimpContext *context,
GeglBuffer *buffer,
const GeglRectangle *buffer_region,
- PixelRegion *PR,
GimpBlendMode blend_mode,
GimpGradientType gradient_type,
gdouble offset,
@@ -155,15 +151,6 @@ static void gradient_fill_region (GimpImage *image,
gdouble ey,
GimpProgress *progress);
-static void gradient_fill_single_region_rgb (RenderBlendData *rbd,
- PixelRegion *PR);
-static void gradient_fill_single_region_rgb_dither (RenderBlendData *rbd,
- PixelRegion *PR);
-static void gradient_fill_single_region_gray (RenderBlendData *rbd,
- PixelRegion *PR);
-static void gradient_fill_single_region_gray_dither (RenderBlendData *rbd,
- PixelRegion *PR);
-
/* public functions */
@@ -189,7 +176,6 @@ gimp_drawable_blend (GimpDrawable *drawable,
{
GimpImage *image;
GeglBuffer *buffer;
- PixelRegion bufPR;
gint x, y, width, height;
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
@@ -208,12 +194,8 @@ gimp_drawable_blend (GimpDrawable *drawable,
buffer = gimp_gegl_buffer_new (GEGL_RECTANGLE (0, 0, width, height),
gimp_drawable_get_format_with_alpha (drawable));
- pixel_region_init (&bufPR, gimp_gegl_buffer_get_tiles (buffer),
- 0, 0, width, height, TRUE);
-
gradient_fill_region (image, drawable, context,
buffer, GEGL_RECTANGLE (0, 0, width, height),
- &bufPR,
blend_mode, gradient_type, offset, repeat, reverse,
supersample, max_depth, threshold, dither,
(startx - x), (starty - y),
@@ -823,7 +805,6 @@ gradient_fill_region (GimpImage *image,
GimpContext *context,
GeglBuffer *buffer,
const GeglRectangle *buffer_region,
- PixelRegion *PR,
GimpBlendMode blend_mode,
GimpGradientType gradient_type,
gdouble offset,
@@ -965,37 +946,71 @@ gradient_fill_region (GimpImage *image,
}
else
{
- PixelProcessorFunc func;
- PixelProcessorProgressFunc progress_func = NULL;
+ GeglBufferIterator *iter;
+ GeglRectangle *roi;
+ gint total = buffer_region->width * buffer_region->height;
+ gint done = 0;
+
+ iter = gegl_buffer_iterator_new (buffer, buffer_region, 0,
+ babl_format ("R'G'B'A float"),
+ GEGL_BUFFER_WRITE, GEGL_ABYSS_NONE);
+ roi = &iter->roi[0];
if (dither)
- {
- rbd.seed = g_rand_new ();
+ rbd.seed = g_rand_new ();
- if (PR->bytes >= 3)
- func = (PixelProcessorFunc) gradient_fill_single_region_rgb_dither;
- else
- func = (PixelProcessorFunc) gradient_fill_single_region_gray_dither;
- }
- else
+ while (gegl_buffer_iterator_next (iter))
{
- if (PR->bytes >= 3)
- func = (PixelProcessorFunc) gradient_fill_single_region_rgb;
+ gfloat *dest = iter->data[0];
+ gint endx = roi->x + roi->width;
+ gint endy = roi->y + roi->height;
+ gint x, y;
+
+ if (rbd.seed)
+ {
+ GRand *dither_rand = g_rand_new_with_seed (g_rand_int (rbd.seed));
+
+ for (y = roi->y; y < endy; y++)
+ for (x = roi->x; x < endx; x++)
+ {
+ GimpRGB color;
+ gint i = g_rand_int (dither_rand);
+
+ gradient_render_pixel (x, y, &color, &rbd);
+
+ *dest++ = color.r + (gdouble) (i & 0xff) / 256.0 / 256.0; i >>= 8;
+ *dest++ = color.g + (gdouble) (i & 0xff) / 256.0 / 256.0; i >>= 8;
+ *dest++ = color.b + (gdouble) (i & 0xff) / 256.0 / 256.0; i >>= 8;
+ *dest++ = color.a + (gdouble) (i & 0xff) / 256.0 / 256.0;
+ }
+
+ g_rand_free (dither_rand);
+ }
else
- func = (PixelProcessorFunc) gradient_fill_single_region_gray;
+ {
+ for (y = roi->y; y < endy; y++)
+ for (x = roi->x; x < endx; x++)
+ {
+ GimpRGB color;
+
+ gradient_render_pixel (x, y, &color, &rbd);
+
+ *dest++ = color.r;
+ *dest++ = color.g;
+ *dest++ = color.b;
+ *dest++ = color.a;
+ }
+ }
+
+ done += roi->width * roi->height;
+
+ if (progress)
+ gimp_progress_set_value (progress,
+ (gdouble) done / (gdouble) total);
}
- if (progress)
- progress_func = (PixelProcessorProgressFunc) gimp_progress_set_value;
-
- pixel_regions_process_parallel_progress (func, &rbd,
- progress_func, progress,
- 1, PR);
-
if (dither)
g_rand_free (rbd.seed);
-
- gimp_gegl_buffer_refetch_tiles (buffer);
}
g_object_unref (rbd.gradient);
@@ -1003,102 +1018,3 @@ gradient_fill_region (GimpImage *image,
if (rbd.dist_buffer)
g_object_unref (rbd.dist_buffer);
}
-
-static void
-gradient_fill_single_region_rgb (RenderBlendData *rbd,
- PixelRegion *PR)
-{
- guchar *dest = PR->data;
- gint endx = PR->x + PR->w;
- gint endy = PR->y + PR->h;
- gint x, y;
-
- for (y = PR->y; y < endy; y++)
- for (x = PR->x; x < endx; x++)
- {
- GimpRGB color;
-
- gradient_render_pixel (x, y, &color, rbd);
-
- *dest++ = ROUND (color.r * 255.0);
- *dest++ = ROUND (color.g * 255.0);
- *dest++ = ROUND (color.b * 255.0);
- *dest++ = ROUND (color.a * 255.0);
- }
-}
-
-static void
-gradient_fill_single_region_rgb_dither (RenderBlendData *rbd,
- PixelRegion *PR)
-{
- GRand *dither_rand = g_rand_new_with_seed (g_rand_int (rbd->seed));
- guchar *dest = PR->data;
- gint endx = PR->x + PR->w;
- gint endy = PR->y + PR->h;
- gint x, y;
-
- for (y = PR->y; y < endy; y++)
- for (x = PR->x; x < endx; x++)
- {
- GimpRGB color;
- gint i = g_rand_int (dither_rand);
-
- gradient_render_pixel (x, y, &color, rbd);
-
- *dest++ = color.r * 255.0 + (gdouble) (i & 0xff) / 256.0; i >>= 8;
- *dest++ = color.g * 255.0 + (gdouble) (i & 0xff) / 256.0; i >>= 8;
- *dest++ = color.b * 255.0 + (gdouble) (i & 0xff) / 256.0; i >>= 8;
- *dest++ = color.a * 255.0 + (gdouble) (i & 0xff) / 256.0;
- }
-
- g_rand_free (dither_rand);
-}
-
-static void
-gradient_fill_single_region_gray (RenderBlendData *rbd,
- PixelRegion *PR)
-{
- guchar *dest = PR->data;
- gint endx = PR->x + PR->w;
- gint endy = PR->y + PR->h;
- gint x, y;
-
- for (y = PR->y; y < endy; y++)
- for (x = PR->x; x < endx; x++)
- {
- GimpRGB color;
-
- gradient_render_pixel (x, y, &color, rbd);
-
- *dest++ = gimp_rgb_luminance_uchar (&color);
- *dest++ = ROUND (color.a * 255.0);
- }
-}
-
-static void
-gradient_fill_single_region_gray_dither (RenderBlendData *rbd,
- PixelRegion *PR)
-{
- GRand *dither_rand = g_rand_new_with_seed (g_rand_int (rbd->seed));
- guchar *dest = PR->data;
- gint endx = PR->x + PR->w;
- gint endy = PR->y + PR->h;
- gint x, y;
-
- for (y = PR->y; y < endy; y++)
- for (x = PR->x; x < endx; x++)
- {
- GimpRGB color;
- gdouble gray;
- gint i = g_rand_int (dither_rand);
-
- gradient_render_pixel (x, y, &color, rbd);
-
- gray = gimp_rgb_luminance (&color);
-
- *dest++ = gray * 255.0 + (gdouble) (i & 0xff) / 256.0; i >>= 8;
- *dest++ = color.a * 255.0 + (gdouble) (i & 0xff) / 256.0;
- }
-
- g_rand_free (dither_rand);
-}
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