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Add gdk_memory_texture_new_with_color_state

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Add an api that lets us associate a color state with image
data when we wrap it in a GdkTexture object.
This commit is contained in:
Matthias Clasen
2024-06-07 08:49:29 -04:00
parent 2c2d868366
commit 400ae52809
2 changed files with 59 additions and 11 deletions
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62
gdk/gdkmemorytexture.c
View File

@@ -22,6 +22,7 @@
#include "gdkmemorytextureprivate.h"
#include "gdkmemoryformatprivate.h"
#include "gdkcolorstateprivate.h"
#include "gsk/gl/fp16private.h"
/**
@@ -131,11 +132,15 @@ gdk_memory_sanitize (GBytes *bytes,
* @bytes: the `GBytes` containing the pixel data
* @stride: rowstride for the data
*
* Creates a new texture for a blob of image data.
* Creates a new texture for a blob of sRGB image data.
*
* The `GBytes` must contain @stride × @height pixels
* in the given format.
*
* The data is assumed to be in SRGB. See
* [constructor@Gdk.MemoryTexutre.new_with_color_state]
* for data in other color states.
*
* Returns: (type GdkMemoryTexture): A newly-created `GdkTexture`
*/
GdkTexture *
@@ -144,11 +149,43 @@ gdk_memory_texture_new (int width,
GdkMemoryFormat format,
GBytes *bytes,
gsize stride)
{
return gdk_memory_texture_new_with_color_state (width, height, format,
GDK_COLOR_STATE_SRGB,
bytes, stride);
}
/**
* gdk_memory_texture_new_with_color_state:
* @width: the width of the texture
* @height: the height of the texture
* @format: the format of the data
* @color_state: the `GdkColorState` of the data
* @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 and color state.
*
* Returns: A newly-created `GdkTexture`
*
* Since: 4.16
*/
GdkTexture *
gdk_memory_texture_new_with_color_state (int width,
int height,
GdkMemoryFormat format,
GdkColorState *color_state,
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 (color_state != NULL, NULL);
g_return_val_if_fail (bytes != NULL, NULL);
g_return_val_if_fail (stride >= width * gdk_memory_format_bytes_per_pixel (format), NULL);
/* needs to be this complex to support subtexture of the bottom right part */
@@ -159,6 +196,7 @@ gdk_memory_texture_new (int width,
self = g_object_new (GDK_TYPE_MEMORY_TEXTURE,
"width", width,
"height", height,
"color-state", color_state,
NULL);
GDK_TEXTURE (self)->format = format;
@@ -191,11 +229,12 @@ gdk_memory_texture_new_subtexture (GdkMemoryTexture *source,
size = source->stride * (height - 1) + width * bpp;
bytes = g_bytes_new_from_bytes (source->bytes, offset, size);
result = gdk_memory_texture_new (width,
height,
texture->format,
bytes,
source->stride);
result = gdk_memory_texture_new_with_color_state (width,
height,
texture->format,
texture->color_state,
bytes,
source->stride);
g_bytes_unref (bytes);
return result;
@@ -219,11 +258,12 @@ gdk_memory_texture_from_texture (GdkTexture *texture)
gdk_texture_do_download (texture, texture->format, data, stride);
bytes = g_bytes_new_take (data, stride * texture->height);
result = gdk_memory_texture_new (texture->width,
texture->height,
texture->format,
bytes,
stride);
result = gdk_memory_texture_new_with_color_state (texture->width,
texture->height,
texture->format,
texture->color_state,
bytes,
stride);
g_bytes_unref (bytes);
return GDK_MEMORY_TEXTURE (result);

8
gdk/gdkmemorytexture.h
View File

@@ -68,6 +68,14 @@ GdkTexture * gdk_memory_texture_new (int
GBytes *bytes,
gsize stride);
GDK_AVAILABLE_IN_4_16
GdkTexture * gdk_memory_texture_new_with_color_state (int width,
int height,
GdkMemoryFormat format,
GdkColorState *color_state,
GBytes *bytes,
gsize stride);
G_END_DECLS