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gl: Speed up icon caching

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Avoid expensive padding, and just upload the
image in several slices.
This commit is contained in:
Matthias Clasen 2019-10-11 19:36:26 -04:00
parent 60e2242256
commit 9b61bfb3c8
1 changed files with 47 additions and 45 deletions
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92
gsk/gl/gskgliconcache.c
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@ -102,44 +102,21 @@ gsk_gl_icon_cache_begin_frame (GskGLIconCache *self)
}
}
/* FIXME: this could probably be done more efficiently */
static cairo_surface_t *
pad_surface (cairo_surface_t *surface)
{
cairo_surface_t *padded;
cairo_t *cr;
cairo_pattern_t *pattern;
cairo_matrix_t matrix;
padded = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
cairo_image_surface_get_width (surface) + 2,
cairo_image_surface_get_height (surface) + 2);
cr = cairo_create (padded);
pattern = cairo_pattern_create_for_surface (surface);
cairo_pattern_set_extend (pattern, CAIRO_EXTEND_PAD);
cairo_matrix_init_translate (&matrix, -1, -1);
cairo_pattern_set_matrix (pattern, &matrix);
cairo_set_source (cr, pattern);
cairo_paint (cr);
cairo_destroy (cr);
cairo_pattern_destroy (pattern);
return padded;
}
static void
upload_region_or_else (GskGLIconCache *self,
guint texture_id,
GskImageRegion *region)
upload_regions (GskGLIconCache *self,
guint texture_id,
guint n_regions,
GskImageRegion *regions)
{
int i;
glBindTexture (GL_TEXTURE_2D, texture_id);
glTexSubImage2D (GL_TEXTURE_2D, 0, region->x, region->y, region->width, region->height,
GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, region->data);
for (i = 0; i < n_regions; i++)
glTexSubImage2D (GL_TEXTURE_2D, 0,
regions[i].x, regions[i].y,
regions[i].width, regions[i].height,
GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV,
regions[i].data);
}
void
@ -174,9 +151,9 @@ gsk_gl_icon_cache_lookup_or_add (GskGLIconCache *self,
GskGLTextureAtlas *atlas = NULL;
int packed_x = 0;
int packed_y = 0;
GskImageRegion region;
GskImageRegion region[5];
cairo_surface_t *surface;
cairo_surface_t *padded_surface;
guchar *padding;
gsk_gl_texture_atlases_pack (self->atlases, width + 2, height + 2, &atlas, &packed_x, &packed_y);
@ -195,17 +172,42 @@ gsk_gl_icon_cache_lookup_or_add (GskGLIconCache *self,
/* actually upload the texture */
surface = gdk_texture_download_surface (texture);
padded_surface = pad_surface (surface);
region.x = packed_x;
region.y = packed_y;
region.width = width + 2;
region.height = height + 2;
region.data = cairo_image_surface_get_data (padded_surface);
padding = g_new0 (guchar, 4 * (MAX (width, height) + 2));
region[0].x = packed_x + 1;
region[0].y = packed_y + 1;
region[0].width = width;
region[0].height = height;
region[0].data = cairo_image_surface_get_data (surface);
region[1].x = packed_x;
region[1].y = packed_y;
region[1].width = width + 2;
region[1].height = 1;
region[1].data = padding;
region[2].x = packed_x;
region[2].y = packed_y + 1 + height;
region[2].width = width + 2;
region[2].height = 1;
region[2].data = padding;
region[3].x = packed_x;
region[3].y = packed_y;
region[3].width = 1;
region[3].height = height + 2;
region[3].data = padding;
region[4].x = packed_x + 1 + width;
region[4].y = packed_y;
region[4].width = 1;
region[4].height = height + 2;
region[4].data = padding;
gdk_gl_context_push_debug_group_printf (gdk_gl_context_get_current (),
"Uploading texture");
upload_region_or_else (self, atlas->texture_id, &region);
upload_regions (self, atlas->texture_id, 5, region);
gdk_gl_context_pop_debug_group (gdk_gl_context_get_current ());
@ -213,7 +215,7 @@ gsk_gl_icon_cache_lookup_or_add (GskGLIconCache *self,
*out_texture_rect = icon_data->texture_rect;
cairo_surface_destroy (surface);
cairo_surface_destroy (padded_surface);
g_free (padding);
#if 0
{