[gtk/wip/otte/colorspace: 38/50] API: Add gdk_memory_texture_new_with_color_space()

[Benjamin Otte <otte src gnome org>]

commit 995a74e1881924dca49d7b66ac68953b3954e1dd
Author: Benjamin Otte <otte redhat com>
Date:   Thu Sep 23 03:26:27 2021 +0200

    API: Add gdk_memory_texture_new_with_color_space()
    
    A version of gdk_memory_texture_new() that allows passing a color
    space. The old version just assumes sRGB.

 gdk/gdkmemorytexture.c | 55 +++++++++++++++++++++++++++++++++++++++++++++-----
 gdk/gdkmemorytexture.h | 19 +++++++++++------
 2 files changed, 63 insertions(+), 11 deletions(-)
---
diff --git a/gdk/gdkmemorytexture.c b/gdk/gdkmemorytexture.c
index 9827bf5cb0..e4f0893f10 100644
--- a/gdk/gdkmemorytexture.c
+++ b/gdk/gdkmemorytexture.c
@@ -139,6 +139,9 @@ gdk_memory_sanitize (GBytes          *bytes,
  * The `GBytes` must contain @stride x @height pixels
  * in the given format.
  *
+ * This function calls [ctor@Gdk.MemoryTexture.new_with_color_profile]
+ * with the sRGB profile.
+ *
  * Returns: A newly-created `GdkTexture`
  */
 GdkTexture *
@@ -147,11 +150,51 @@ gdk_memory_texture_new (int              width,
                         GdkMemoryFormat  format,
                         GBytes          *bytes,
                         gsize            stride)
+{
+  g_return_val_if_fail (width > 0, NULL);
+  g_return_val_if_fail (height > 0, NULL);
+  g_return_val_if_fail (bytes != NULL, NULL);
+  g_return_val_if_fail (stride >= width * gdk_memory_format_bytes_per_pixel (format), NULL);
+
+  return gdk_memory_texture_new_with_color_space (width, height,
+                                                  format,
+                                                  gdk_color_space_get_srgb (),
+                                                  bytes, stride);
+}
+
+/**
+ * gdk_memory_texture_new_with_color_space:
+ * @width: the width of the texture
+ * @height: the height of the texture
+ * @format: the format of the data
+ * @color_space: the color space for the pixels. The color space
+ *   must be compatible with the format.
+ * @bytes: the `GBytes` containing the pixel data
+ * @stride: rowstride for the data
+ *
+ * Creates a new texture for a blob of image data.
+ *
+ * The `GBytes` must contain @stride x @height pixels
+ * in the given format.
+ *
+ * Returns: A newly-created `GdkTexture`
+ *
+ * Since: 4.6
+ */
+GdkTexture *
+gdk_memory_texture_new_with_color_space (int              width,
+                                         int              height,
+                                         GdkMemoryFormat  format,
+                                         GdkColorSpace   *color_space,
+                                         GBytes          *bytes,
+                                         gsize            stride)
 {
   GdkMemoryTexture *self;
 
   g_return_val_if_fail (width > 0, NULL);
   g_return_val_if_fail (height > 0, NULL);
+  g_return_val_if_fail (GDK_IS_COLOR_SPACE (color_space), NULL);
+  g_return_val_if_fail (gdk_color_space_supports_format (color_space, format), NULL);
   g_return_val_if_fail (bytes != NULL, NULL);
   g_return_val_if_fail (stride >= width * gdk_memory_format_bytes_per_pixel (format), NULL);
 
@@ -160,6 +203,7 @@ gdk_memory_texture_new (int              width,
   self = g_object_new (GDK_TYPE_MEMORY_TEXTURE,
                        "width", width,
                        "height", height,
+                       "color-space", color_space,
                        NULL);
 
   GDK_TEXTURE (self)->format = format;
@@ -192,11 +236,12 @@ gdk_memory_texture_new_subtexture (GdkMemoryTexture  *source,
   size = source->stride * (height - 1) + x * bpp;
   bytes = g_bytes_new_from_bytes (source->bytes, offset, size);
 
-  result = gdk_memory_texture_new (texture->width,
-                                   texture->height,
-                                   texture->format,
-                                   bytes,
-                                   source->stride);
+  result = gdk_memory_texture_new_with_color_space (texture->width,
+                                                    texture->height,
+                                                    texture->format,
+                                                    texture->color_space,
+                                                    bytes,
+                                                    source->stride);
   g_bytes_unref (bytes);
 
   return result;
diff --git a/gdk/gdkmemorytexture.h b/gdk/gdkmemorytexture.h
index 9a76c7be82..3eac45fbc3 100644
--- a/gdk/gdkmemorytexture.h
+++ b/gdk/gdkmemorytexture.h
@@ -60,14 +60,21 @@ G_DEFINE_AUTOPTR_CLEANUP_FUNC(GdkMemoryTexture, g_object_unref)
 
 
 GDK_AVAILABLE_IN_ALL
-GType                   gdk_memory_texture_get_type         (void) G_GNUC_CONST;
+GType                   gdk_memory_texture_get_type             (void) G_GNUC_CONST;
 
 GDK_AVAILABLE_IN_ALL
-GdkTexture *            gdk_memory_texture_new              (int                width,
-                                                             int                height,
-                                                             GdkMemoryFormat    format,
-                                                             GBytes            *bytes,
-                                                             gsize              stride);
+GdkTexture *            gdk_memory_texture_new                  (int                width,
+                                                                 int                height,
+                                                                 GdkMemoryFormat    format,
+                                                                 GBytes            *bytes,
+                                                                 gsize              stride);
+GDK_AVAILABLE_IN_4_6
+GdkTexture *            gdk_memory_texture_new_with_color_space (int                width,
+                                                                 int                height,
+                                                                 GdkMemoryFormat    format,
+                                                                 GdkColorSpace     *color_space,
+                                                                 GBytes            *bytes,
+                                                                 gsize              stride);
 
 
 G_END_DECLS