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2e1686091f
YUV dmabufs are not sRGB. So instead of making the dmabuf builder have sRGB as the default colorstate, add a NULL default option that makes the builder choose the colorstate based on fourcc when build() is called. If that happens, we pick sRGB usually, but for YUV we pick narrow range BT601, like we did in versions before colorstates.
1098 lines
32 KiB
C
1098 lines
32 KiB
C
/*
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* Copyright © 2023 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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* Authors: Matthias Clasen <mclasen@redhat.com>
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*/
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#include "config.h"
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#include "gdkdmabuftexturebuilder.h"
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#include "gdkdebugprivate.h"
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#include "gdkdisplay.h"
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#include "gdkenumtypes.h"
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#include "gdkcolorstate.h"
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#include "gdkdmabuftextureprivate.h"
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#include "gdkdmabuftexturebuilderprivate.h"
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#include <cairo-gobject.h>
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struct _GdkDmabufTextureBuilder
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{
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GObject parent_instance;
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GdkDisplay *display;
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unsigned int width;
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unsigned int height;
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gboolean premultiplied;
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GdkDmabuf dmabuf;
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GdkColorState *color_state;
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GdkTexture *update_texture;
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cairo_region_t *update_region;
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};
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struct _GdkDmabufTextureBuilderClass
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{
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GObjectClass parent_class;
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};
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/**
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* GdkDmabufTextureBuilder:
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*
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* `GdkDmabufTextureBuilder` is a builder used to construct [class@Gdk.Texture]
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* objects from DMA buffers.
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*
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* DMA buffers are commonly called **_dma-bufs_**.
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*
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* DMA buffers are a feature of the Linux kernel to enable efficient buffer and
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* memory sharing between hardware such as codecs, GPUs, displays, cameras and the
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* kernel drivers controlling them. For example, a decoder may want its output to
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* be directly shared with the display server for rendering without a copy.
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*
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* Any device driver which participates in DMA buffer sharing, can do so as either
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* the exporter or importer of buffers (or both).
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*
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* The memory that is shared via DMA buffers is usually stored in non-system memory
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* (maybe in device's local memory or something else not directly accessible by the
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* CPU), and accessing this memory from the CPU may have higher-than-usual overhead.
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*
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* In particular for graphics data, it is not uncommon that data consists of multiple
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* separate blocks of memory, for example one block for each of the red, green and
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* blue channels. These blocks are called **_planes_**. DMA buffers can have up to
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* four planes. Even if the memory is a single block, the data can be organized in
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* multiple planes, by specifying offsets from the beginning of the data.
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*
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* DMA buffers are exposed to user-space as file descriptors allowing to pass them
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* between processes. If a DMA buffer has multiple planes, there is one file
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* descriptor per plane.
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*
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* The format of the data (for graphics data, essentially its colorspace) is described
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* by a 32-bit integer. These format identifiers are defined in the header file `drm_fourcc.h`
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* and commonly referred to as **_fourcc_** values, since they are identified by 4 ASCII
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* characters. Additionally, each DMA buffer has a **_modifier_**, which is a 64-bit integer
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* that describes driver-specific details of the memory layout, such as tiling or compression.
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*
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* For historical reasons, some producers of dma-bufs don't provide an explicit modifier, but
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* instead return `DMA_FORMAT_MOD_INVALID` to indicate that their modifier is **_implicit_**.
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* GTK tries to accommodate this situation by accepting `DMA_FORMAT_MOD_INVALID` as modifier.
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*
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* The operation of `GdkDmabufTextureBuilder` is quite simple: Create a texture builder,
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* set all the necessary properties, and then call [method@Gdk.DmabufTextureBuilder.build]
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* to create the new texture.
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*
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* The required properties for a dma-buf texture are
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*
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* * The width and height in pixels
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*
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* * The `fourcc` code and `modifier` which identify the format and memory layout of the dma-buf
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*
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* * The file descriptor, offset and stride for each of the planes
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*
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* `GdkDmabufTextureBuilder` can be used for quick one-shot construction of
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* textures as well as kept around and reused to construct multiple textures.
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*
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* For further information, see
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*
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* * The Linux kernel [documentation](https://docs.kernel.org/driver-api/dma-buf.html)
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*
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* * The header file [drm_fourcc.h](https://gitlab.freedesktop.org/mesa/drm/-/blob/main/include/drm/drm_fourcc.h)
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*
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* Since: 4.14
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*/
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enum
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{
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PROP_0,
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PROP_DISPLAY,
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PROP_WIDTH,
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PROP_HEIGHT,
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PROP_FOURCC,
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PROP_MODIFIER,
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PROP_PREMULTIPLIED,
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PROP_N_PLANES,
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PROP_COLOR_STATE,
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PROP_UPDATE_REGION,
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PROP_UPDATE_TEXTURE,
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N_PROPS
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};
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G_DEFINE_TYPE (GdkDmabufTextureBuilder, gdk_dmabuf_texture_builder, G_TYPE_OBJECT)
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static GParamSpec *properties[N_PROPS] = { NULL, };
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static void
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gdk_dmabuf_texture_builder_dispose (GObject *object)
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{
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GdkDmabufTextureBuilder *self = GDK_DMABUF_TEXTURE_BUILDER (object);
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g_clear_object (&self->update_texture);
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g_clear_pointer (&self->update_region, cairo_region_destroy);
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g_clear_pointer (&self->color_state, gdk_color_state_unref);
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G_OBJECT_CLASS (gdk_dmabuf_texture_builder_parent_class)->dispose (object);
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}
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static void
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gdk_dmabuf_texture_builder_get_property (GObject *object,
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guint property_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GdkDmabufTextureBuilder *self = GDK_DMABUF_TEXTURE_BUILDER (object);
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switch (property_id)
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{
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case PROP_DISPLAY:
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g_value_set_object (value, self->display);
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break;
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case PROP_WIDTH:
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g_value_set_uint (value, self->width);
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break;
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case PROP_HEIGHT:
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g_value_set_uint (value, self->height);
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break;
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case PROP_FOURCC:
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g_value_set_uint (value, self->dmabuf.fourcc);
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break;
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case PROP_MODIFIER:
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g_value_set_uint64 (value, self->dmabuf.modifier);
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break;
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case PROP_PREMULTIPLIED:
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g_value_set_boolean (value, self->premultiplied);
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break;
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case PROP_N_PLANES:
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g_value_set_uint (value, self->dmabuf.n_planes);
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break;
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case PROP_COLOR_STATE:
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g_value_set_boxed (value, self->color_state);
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break;
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case PROP_UPDATE_REGION:
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g_value_set_boxed (value, self->update_region);
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break;
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case PROP_UPDATE_TEXTURE:
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g_value_set_object (value, self->update_texture);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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static void
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gdk_dmabuf_texture_builder_set_property (GObject *object,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GdkDmabufTextureBuilder *self = GDK_DMABUF_TEXTURE_BUILDER (object);
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switch (property_id)
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{
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case PROP_DISPLAY:
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gdk_dmabuf_texture_builder_set_display (self, g_value_get_object (value));
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break;
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case PROP_WIDTH:
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gdk_dmabuf_texture_builder_set_width (self, g_value_get_uint (value));
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break;
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case PROP_HEIGHT:
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gdk_dmabuf_texture_builder_set_height (self, g_value_get_uint (value));
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break;
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case PROP_FOURCC:
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gdk_dmabuf_texture_builder_set_fourcc (self, g_value_get_uint (value));
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break;
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case PROP_MODIFIER:
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gdk_dmabuf_texture_builder_set_modifier (self, g_value_get_uint64 (value));
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break;
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case PROP_PREMULTIPLIED:
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gdk_dmabuf_texture_builder_set_premultiplied (self, g_value_get_boolean (value));
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break;
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case PROP_N_PLANES:
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gdk_dmabuf_texture_builder_set_n_planes (self, g_value_get_uint (value));
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break;
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case PROP_COLOR_STATE:
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gdk_dmabuf_texture_builder_set_color_state (self, g_value_get_boxed (value));
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break;
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case PROP_UPDATE_REGION:
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gdk_dmabuf_texture_builder_set_update_region (self, g_value_get_boxed (value));
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break;
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case PROP_UPDATE_TEXTURE:
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gdk_dmabuf_texture_builder_set_update_texture (self, g_value_get_object (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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static void
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gdk_dmabuf_texture_builder_class_init (GdkDmabufTextureBuilderClass *klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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gobject_class->dispose = gdk_dmabuf_texture_builder_dispose;
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gobject_class->get_property = gdk_dmabuf_texture_builder_get_property;
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gobject_class->set_property = gdk_dmabuf_texture_builder_set_property;
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/**
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* GdkDmabufTextureBuilder:display: (attributes org.gtk.Property.get=gdk_dmabuf_texture_builder_get_display org.gtk.Property.set=gdk_dmabuf_texture_builder_set_display)
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*
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* The display that this texture will be used on.
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*
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* Since: 4.14
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*/
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properties[PROP_DISPLAY] =
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g_param_spec_object ("display", NULL, NULL,
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GDK_TYPE_DISPLAY,
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G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
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/**
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* GdkDmabufTextureBuilder:width: (attributes org.gtk.Property.get=gdk_dmabuf_texture_builder_get_width org.gtk.Property.set=gdk_dmabuf_texture_builder_set_width)
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*
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* The width of the texture.
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*
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* Since: 4.14
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*/
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properties[PROP_WIDTH] =
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g_param_spec_uint ("width", NULL, NULL,
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0, G_MAXUINT, 0,
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G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
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/**
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* GdkDmabufTextureBuilder:height: (attributes org.gtk.Property.get=gdk_dmabuf_texture_builder_get_height org.gtk.Property.set=gdk_dmabuf_texture_builder_set_height)
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*
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* The height of the texture.
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*
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* Since: 4.14
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*/
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properties[PROP_HEIGHT] =
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g_param_spec_uint ("height", NULL, NULL,
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0, G_MAXUINT, 0,
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G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
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/**
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* GdkDmabufTextureBuilder:fourcc: (attributes org.gtk.Property.get=gdk_dmabuf_texture_builder_get_fourcc org.gtk.Property.set=gdk_dmabuf_texture_builder_set_fourcc)
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*
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* The format of the texture, as a fourcc value.
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*
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* Since: 4.14
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*/
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properties[PROP_FOURCC] =
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g_param_spec_uint ("fourcc", NULL, NULL,
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0, 0xffffffff, 0,
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G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
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/**
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* GdkDmabufTextureBuilder:modifier:
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*
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* The modifier.
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*
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* Since: 4.14
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*/
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properties[PROP_MODIFIER] =
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g_param_spec_uint64 ("modifier", NULL, NULL,
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0, G_MAXUINT, 0,
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G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
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/**
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* GdkDmabufTextureBuilder:premultiplied:
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*
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* Whether the alpha channel is premultiplied into the others.
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*
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* Only relevant if the format has alpha.
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*
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* Since: 4.14
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*/
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properties[PROP_PREMULTIPLIED] =
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g_param_spec_boolean ("premultiplied", NULL, NULL,
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TRUE,
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G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
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/**
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* GdkDmabufTextureBuilder:n-planes: (attributes org.gtk.Property.get=gdk_dmabuf_texture_builder_get_n_planes org.gtk.Property.set=gdk_dmabuf_texture_builder_set_n_planes)
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*
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* The number of planes of the texture.
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*
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* Note that you can set properties for other planes,
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* but they will be ignored when constructing the texture.
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*
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* Since: 4.14
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*/
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properties[PROP_N_PLANES] =
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g_param_spec_uint ("n-planes", NULL, NULL,
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1, GDK_DMABUF_MAX_PLANES, 1,
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G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
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/**
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* GdkDmabufTextureBuilder:color-state:
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*
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* The color state of the texture.
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*
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* Since: 4.16
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*/
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properties[PROP_COLOR_STATE] =
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g_param_spec_boxed ("color-state", NULL, NULL,
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GDK_TYPE_COLOR_STATE,
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G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
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/**
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* GdkDmabufTextureBuilder:update-region: (attributes org.gtk.Property.get=gdk_dmabuf_texture_builder_get_update_region org.gtk.Property.set=gdk_dmabuf_texture_builder_set_update_region)
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*
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* The update region for [property@Gdk.GLTextureBuilder:update-texture].
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*
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* Since: 4.14
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*/
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properties[PROP_UPDATE_REGION] =
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g_param_spec_boxed ("update-region", NULL, NULL,
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CAIRO_GOBJECT_TYPE_REGION,
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G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
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/**
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* GdkDmabufTextureBuilder:update-texture: (attributes org.gtk.Property.get=gdk_dmabuf_texture_builder_get_update_texture org.gtk.Property.set=gdk_dmabuf_texture_builder_set_update_texture)
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*
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* The texture [property@Gdk.DmabufTextureBuilder:update-region] is an update for.
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*
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* Since: 4.14
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*/
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properties[PROP_UPDATE_TEXTURE] =
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g_param_spec_object ("update-texture", NULL, NULL,
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GDK_TYPE_TEXTURE,
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G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
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g_object_class_install_properties (gobject_class, N_PROPS, properties);
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}
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static void
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gdk_dmabuf_texture_builder_init (GdkDmabufTextureBuilder *self)
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{
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self->premultiplied = TRUE;
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self->display = gdk_display_get_default ();
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self->dmabuf.n_planes = 1;
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for (int i = 0; i < GDK_DMABUF_MAX_PLANES; i++)
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self->dmabuf.planes[i].fd = -1;
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self->color_state = NULL;
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}
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/**
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* gdk_dmabuf_texture_builder_new: (constructor):
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*
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* Creates a new texture builder.
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*
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* Returns: the new `GdkTextureBuilder`
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*
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* Since: 4.14
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**/
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GdkDmabufTextureBuilder *
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gdk_dmabuf_texture_builder_new (void)
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{
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return g_object_new (GDK_TYPE_DMABUF_TEXTURE_BUILDER, NULL);
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}
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/**
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* gdk_dmabuf_texture_builder_get_display:
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* @self: a `GdkDmabufTextureBuilder
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*
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* Returns the display that this texture builder is
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* associated with.
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*
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* Returns: (transfer none): the display
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*
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* Since: 4.14
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*/
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GdkDisplay *
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gdk_dmabuf_texture_builder_get_display (GdkDmabufTextureBuilder *self)
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{
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g_return_val_if_fail (GDK_IS_DMABUF_TEXTURE_BUILDER (self), NULL);
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return self->display;
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}
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|
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/**
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* gdk_dmabuf_texture_builder_set_display:
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* @self: a `GdkDmabufTextureBuilder
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* @display: the display
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*
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* Sets the display that this texture builder is
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* associated with.
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*
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* The display is used to determine the supported
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* dma-buf formats.
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*
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* Since: 4.14
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*/
|
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void
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gdk_dmabuf_texture_builder_set_display (GdkDmabufTextureBuilder *self,
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GdkDisplay *display)
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{
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g_return_if_fail (GDK_IS_DMABUF_TEXTURE_BUILDER (self));
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g_return_if_fail (GDK_IS_DISPLAY (display));
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if (g_set_object (&self->display, display))
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g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_DISPLAY]);
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}
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/**
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* gdk_dmabuf_texture_builder_get_width: (attributes org.gtk.Method.get_property=width)
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* @self: a `GdkDmabufTextureBuilder`
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*
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* Gets the width previously set via gdk_dmabuf_texture_builder_set_width() or
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* 0 if the width wasn't set.
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*
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* Returns: The width
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*
|
|
* Since: 4.14
|
|
*/
|
|
unsigned int
|
|
gdk_dmabuf_texture_builder_get_width (GdkDmabufTextureBuilder *self)
|
|
{
|
|
g_return_val_if_fail (GDK_IS_DMABUF_TEXTURE_BUILDER (self), 0);
|
|
|
|
return self->width;
|
|
}
|
|
|
|
/**
|
|
* gdk_dmabuf_texture_builder_set_width: (attributes org.gtk.Method.set_property=width)
|
|
* @self: a `GdkDmabufTextureBuilder`
|
|
* @width: The texture's width or 0 to unset
|
|
*
|
|
* Sets the width of the texture.
|
|
*
|
|
* The width must be set before calling [method@Gdk.GLTextureBuilder.build].
|
|
*
|
|
* Since: 4.14
|
|
*/
|
|
void
|
|
gdk_dmabuf_texture_builder_set_width (GdkDmabufTextureBuilder *self,
|
|
unsigned int width)
|
|
{
|
|
g_return_if_fail (GDK_IS_DMABUF_TEXTURE_BUILDER (self));
|
|
|
|
if (self->width == width)
|
|
return;
|
|
|
|
self->width = width;
|
|
|
|
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_WIDTH]);
|
|
}
|
|
|
|
/**
|
|
* gdk_dmabuf_texture_builder_get_height: (attributes org.gtk.Method.get_property=height)
|
|
* @self: a `GdkDmabufTextureBuilder`
|
|
*
|
|
* Gets the height previously set via gdk_dmabuf_texture_builder_set_height() or
|
|
* 0 if the height wasn't set.
|
|
*
|
|
* Returns: The height
|
|
*
|
|
* Since: 4.14
|
|
*/
|
|
unsigned int
|
|
gdk_dmabuf_texture_builder_get_height (GdkDmabufTextureBuilder *self)
|
|
{
|
|
g_return_val_if_fail (GDK_IS_DMABUF_TEXTURE_BUILDER (self), 0);
|
|
|
|
return self->height;
|
|
}
|
|
|
|
/**
|
|
* gdk_dmabuf_texture_builder_set_height: (attributes org.gtk.Method.set_property=height)
|
|
* @self: a `GdkDmabufTextureBuilder`
|
|
* @height: the texture's height or 0 to unset
|
|
*
|
|
* Sets the height of the texture.
|
|
*
|
|
* The height must be set before calling [method@Gdk.GLTextureBuilder.build].
|
|
*
|
|
* Since: 4.14
|
|
*/
|
|
void
|
|
gdk_dmabuf_texture_builder_set_height (GdkDmabufTextureBuilder *self,
|
|
unsigned int height)
|
|
{
|
|
g_return_if_fail (GDK_IS_DMABUF_TEXTURE_BUILDER (self));
|
|
|
|
if (self->height == height)
|
|
return;
|
|
|
|
self->height = height;
|
|
|
|
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_HEIGHT]);
|
|
}
|
|
|
|
/**
|
|
* gdk_dmabuf_texture_builder_get_fourcc: (attributes org.gtk.Method.get_property=fourcc)
|
|
* @self: a `GdkDmabufTextureBuilder`
|
|
*
|
|
* Gets the format previously set via gdk_dmabuf_texture_builder_set_fourcc()
|
|
* or 0 if the format wasn't set.
|
|
*
|
|
* The format is specified as a fourcc code.
|
|
*
|
|
* Returns: The format
|
|
*
|
|
* Since: 4.14
|
|
*/
|
|
guint32
|
|
gdk_dmabuf_texture_builder_get_fourcc (GdkDmabufTextureBuilder *self)
|
|
{
|
|
g_return_val_if_fail (GDK_IS_DMABUF_TEXTURE_BUILDER (self), 0);
|
|
|
|
return self->dmabuf.fourcc;
|
|
}
|
|
|
|
/**
|
|
* gdk_dmabuf_texture_builder_set_fourcc: (attributes org.gtk.Method.set_property=fourcc)
|
|
* @self: a `GdkDmabufTextureBuilder`
|
|
* @fourcc: the texture's format or 0 to unset
|
|
*
|
|
* Sets the format of the texture.
|
|
*
|
|
* The format is specified as a fourcc code.
|
|
*
|
|
* The format must be set before calling [method@Gdk.GLTextureBuilder.build].
|
|
*
|
|
* Since: 4.14
|
|
*/
|
|
void
|
|
gdk_dmabuf_texture_builder_set_fourcc (GdkDmabufTextureBuilder *self,
|
|
guint32 fourcc)
|
|
{
|
|
g_return_if_fail (GDK_IS_DMABUF_TEXTURE_BUILDER (self));
|
|
|
|
if (self->dmabuf.fourcc == fourcc)
|
|
return;
|
|
|
|
self->dmabuf.fourcc = fourcc;
|
|
|
|
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_FOURCC]);
|
|
}
|
|
|
|
/**
|
|
* gdk_dmabuf_texture_builder_get_modifier:
|
|
* @self: a `GdkDmabufTextureBuilder`
|
|
*
|
|
* Gets the modifier value.
|
|
*
|
|
* Returns: the modifier
|
|
*
|
|
* Since: 4.14
|
|
*/
|
|
guint64
|
|
gdk_dmabuf_texture_builder_get_modifier (GdkDmabufTextureBuilder *self)
|
|
{
|
|
g_return_val_if_fail (GDK_IS_DMABUF_TEXTURE_BUILDER (self), 0);
|
|
|
|
return self->dmabuf.modifier;
|
|
}
|
|
|
|
/**
|
|
* gdk_dmabuf_texture_builder_set_modifier:
|
|
* @self: a `GdkDmabufTextureBuilder`
|
|
* @modifier: the modifier value
|
|
*
|
|
* Sets the modifier.
|
|
*
|
|
* Since: 4.14
|
|
*/
|
|
void
|
|
gdk_dmabuf_texture_builder_set_modifier (GdkDmabufTextureBuilder *self,
|
|
guint64 modifier)
|
|
{
|
|
g_return_if_fail (GDK_IS_DMABUF_TEXTURE_BUILDER (self));
|
|
|
|
if (self->dmabuf.modifier == modifier)
|
|
return;
|
|
|
|
self->dmabuf.modifier = modifier;
|
|
|
|
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_MODIFIER]);
|
|
}
|
|
|
|
/**
|
|
* gdk_dmabuf_texture_builder_get_n_planes: (attributes org.gtk.Method.get_property=n-planes)
|
|
* @self: a `GdkDmabufTextureBuilder`
|
|
*
|
|
* Gets the number of planes.
|
|
*
|
|
* Returns: The number of planes
|
|
*
|
|
* Since: 4.14
|
|
*/
|
|
unsigned int
|
|
gdk_dmabuf_texture_builder_get_n_planes (GdkDmabufTextureBuilder *self)
|
|
{
|
|
g_return_val_if_fail (GDK_IS_DMABUF_TEXTURE_BUILDER (self), 0);
|
|
|
|
return self->dmabuf.n_planes;
|
|
}
|
|
|
|
/**
|
|
* gdk_dmabuf_texture_builder_get_premultiplied:
|
|
* @self: a `GdkDmabufTextureBuilder`
|
|
*
|
|
* Whether the data is premultiplied.
|
|
*
|
|
* Returns: whether the data is premultiplied
|
|
*
|
|
* Since: 4.14
|
|
*/
|
|
gboolean
|
|
gdk_dmabuf_texture_builder_get_premultiplied (GdkDmabufTextureBuilder *self)
|
|
{
|
|
g_return_val_if_fail (GDK_IS_DMABUF_TEXTURE_BUILDER (self), TRUE);
|
|
|
|
return self->premultiplied;
|
|
}
|
|
|
|
/**
|
|
* gdk_dmabuf_texture_builder_set_premultiplied:
|
|
* @self: a `GdkDmabufTextureBuilder`
|
|
* @premultiplied: whether the data is premultiplied
|
|
*
|
|
* Sets whether the data is premultiplied.
|
|
*
|
|
* Unless otherwise specified, all formats including alpha channels are assumed
|
|
* to be premultiplied.
|
|
*
|
|
* Since: 4.14
|
|
*/
|
|
void
|
|
gdk_dmabuf_texture_builder_set_premultiplied (GdkDmabufTextureBuilder *self,
|
|
gboolean premultiplied)
|
|
{
|
|
g_return_if_fail (GDK_IS_DMABUF_TEXTURE_BUILDER (self));
|
|
|
|
if (self->premultiplied == premultiplied)
|
|
return;
|
|
|
|
self->premultiplied = premultiplied;
|
|
|
|
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_PREMULTIPLIED]);
|
|
}
|
|
|
|
/**
|
|
* gdk_dmabuf_texture_builder_set_n_planes: (attributes org.gtk.Method.set_property=n-planes)
|
|
* @self: a `GdkDmabufTextureBuilder`
|
|
* @n_planes: the number of planes
|
|
*
|
|
* Sets the number of planes of the texture.
|
|
*
|
|
* Since: 4.14
|
|
*/
|
|
void
|
|
gdk_dmabuf_texture_builder_set_n_planes (GdkDmabufTextureBuilder *self,
|
|
unsigned int n_planes)
|
|
{
|
|
g_return_if_fail (GDK_IS_DMABUF_TEXTURE_BUILDER (self));
|
|
g_return_if_fail (n_planes > 0 && n_planes <= GDK_DMABUF_MAX_PLANES);
|
|
|
|
if (self->dmabuf.n_planes == n_planes)
|
|
return;
|
|
|
|
self->dmabuf.n_planes = n_planes;
|
|
|
|
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_N_PLANES]);
|
|
}
|
|
|
|
/**
|
|
* gdk_dmabuf_texture_builder_get_fd:
|
|
* @self: a `GdkDmabufTextureBuilder`
|
|
* @plane: the plane to get the fd for
|
|
*
|
|
* Gets the file descriptor for a plane.
|
|
*
|
|
* Returns: the file descriptor
|
|
*
|
|
* Since: 4.14
|
|
*/
|
|
int
|
|
gdk_dmabuf_texture_builder_get_fd (GdkDmabufTextureBuilder *self,
|
|
unsigned int plane)
|
|
{
|
|
g_return_val_if_fail (GDK_IS_DMABUF_TEXTURE_BUILDER (self), 0);
|
|
g_return_val_if_fail (0 <= plane && plane < GDK_DMABUF_MAX_PLANES, 0);
|
|
|
|
return self->dmabuf.planes[plane].fd;
|
|
}
|
|
|
|
/**
|
|
* gdk_dmabuf_texture_builder_set_fd:
|
|
* @self: a `GdkDmabufTextureBuilder`
|
|
* @plane: the plane to set the fd for
|
|
* @fd: the file descriptor
|
|
*
|
|
* Sets the file descriptor for a plane.
|
|
*
|
|
* Since: 4.14
|
|
*/
|
|
void
|
|
gdk_dmabuf_texture_builder_set_fd (GdkDmabufTextureBuilder *self,
|
|
unsigned int plane,
|
|
int fd)
|
|
{
|
|
g_return_if_fail (GDK_IS_DMABUF_TEXTURE_BUILDER (self));
|
|
g_return_if_fail (0 <= plane && plane < GDK_DMABUF_MAX_PLANES);
|
|
|
|
if (self->dmabuf.planes[plane].fd == fd)
|
|
return;
|
|
|
|
self->dmabuf.planes[plane].fd = fd;
|
|
}
|
|
|
|
/**
|
|
* gdk_dmabuf_texture_builder_get_stride:
|
|
* @self: a `GdkDmabufTextureBuilder`
|
|
* @plane: the plane to get the stride for
|
|
*
|
|
* Gets the stride value for a plane.
|
|
*
|
|
* Returns: the stride
|
|
*
|
|
* Since: 4.14
|
|
*/
|
|
unsigned int
|
|
gdk_dmabuf_texture_builder_get_stride (GdkDmabufTextureBuilder *self,
|
|
unsigned int plane)
|
|
{
|
|
g_return_val_if_fail (GDK_IS_DMABUF_TEXTURE_BUILDER (self), 0);
|
|
g_return_val_if_fail (0 <= plane && plane < GDK_DMABUF_MAX_PLANES, 0);
|
|
|
|
return self->dmabuf.planes[plane].stride;
|
|
}
|
|
|
|
/**
|
|
* gdk_dmabuf_texture_builder_set_stride:
|
|
* @self: a `GdkDmabufTextureBuilder`
|
|
* @plane: the plane to set the stride for
|
|
* @stride: the stride value
|
|
*
|
|
* Sets the stride for a plane.
|
|
*
|
|
* The stride must be set for all planes before calling [method@Gdk.GLTextureBuilder.build].
|
|
*
|
|
* Since: 4.14
|
|
*/
|
|
void
|
|
gdk_dmabuf_texture_builder_set_stride (GdkDmabufTextureBuilder *self,
|
|
unsigned int plane,
|
|
unsigned int stride)
|
|
{
|
|
g_return_if_fail (GDK_IS_DMABUF_TEXTURE_BUILDER (self));
|
|
g_return_if_fail (0 <= plane && plane < GDK_DMABUF_MAX_PLANES);
|
|
|
|
if (self->dmabuf.planes[plane].stride == stride)
|
|
return;
|
|
|
|
self->dmabuf.planes[plane].stride = stride;
|
|
}
|
|
|
|
/**
|
|
* gdk_dmabuf_texture_builder_get_offset:
|
|
* @self: a `GdkDmabufTextureBuilder`
|
|
* @plane: the plane to get the offset for
|
|
*
|
|
* Gets the offset value for a plane.
|
|
*
|
|
* Returns: the offset
|
|
*
|
|
* Since: 4.14
|
|
*/
|
|
unsigned int
|
|
gdk_dmabuf_texture_builder_get_offset (GdkDmabufTextureBuilder *self,
|
|
unsigned int plane)
|
|
{
|
|
g_return_val_if_fail (GDK_IS_DMABUF_TEXTURE_BUILDER (self), 0);
|
|
g_return_val_if_fail (0 <= plane && plane < GDK_DMABUF_MAX_PLANES, 0);
|
|
|
|
return self->dmabuf.planes[plane].offset;
|
|
}
|
|
|
|
/**
|
|
* gdk_dmabuf_texture_builder_set_offset:
|
|
* @self: a `GdkDmabufTextureBuilder`
|
|
* @plane: the plane to set the offset for
|
|
* @offset: the offset value
|
|
*
|
|
* Sets the offset for a plane.
|
|
*
|
|
* Since: 4.14
|
|
*/
|
|
void
|
|
gdk_dmabuf_texture_builder_set_offset (GdkDmabufTextureBuilder *self,
|
|
unsigned int plane,
|
|
unsigned int offset)
|
|
{
|
|
g_return_if_fail (GDK_IS_DMABUF_TEXTURE_BUILDER (self));
|
|
g_return_if_fail (0 <= plane && plane < GDK_DMABUF_MAX_PLANES);
|
|
|
|
if (self->dmabuf.planes[plane].offset == offset)
|
|
return;
|
|
|
|
self->dmabuf.planes[plane].offset = offset;
|
|
}
|
|
|
|
/**
|
|
* gdk_dmabuf_texture_builder_get_color_state: (attributes org.gtk.Method.get_property=color-state)
|
|
* @self: a `GdkDmabufTextureBuilder`
|
|
*
|
|
* Gets the color state previously set via gdk_dmabuf_texture_builder_set_color_state().
|
|
*
|
|
* Returns: (nullable): the color state
|
|
*
|
|
* Since: 4.16
|
|
*/
|
|
GdkColorState *
|
|
gdk_dmabuf_texture_builder_get_color_state (GdkDmabufTextureBuilder *self)
|
|
{
|
|
g_return_val_if_fail (GDK_IS_DMABUF_TEXTURE_BUILDER (self), NULL);
|
|
|
|
return self->color_state;
|
|
}
|
|
|
|
/**
|
|
* gdk_dmabuf_texture_builder_set_color_state: (attributes org.gtk.Method.set_property=color-state)
|
|
* @self: a `GdkDmabufTextureBuilder`
|
|
* @color_state: (nullable): a `GdkColorState` or `NULL` to unset the colorstate.
|
|
*
|
|
* Sets the color state for the texture.
|
|
*
|
|
* By default, the colorstate is `NULL`. In that case, GTK will choose the
|
|
* correct colorstate based on the format.
|
|
* If you don't know what colorstates are, this is probably the right thing.
|
|
*
|
|
* Since: 4.16
|
|
*/
|
|
void
|
|
gdk_dmabuf_texture_builder_set_color_state (GdkDmabufTextureBuilder *self,
|
|
GdkColorState *color_state)
|
|
{
|
|
g_return_if_fail (GDK_IS_DMABUF_TEXTURE_BUILDER (self));
|
|
|
|
if (self->color_state == color_state ||
|
|
(self->color_state != NULL && color_state != NULL && gdk_color_state_equal (self->color_state, color_state)))
|
|
return;
|
|
|
|
g_clear_pointer (&self->color_state, gdk_color_state_unref);
|
|
self->color_state = color_state;
|
|
if (color_state)
|
|
gdk_color_state_ref (color_state);
|
|
|
|
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_COLOR_STATE]);
|
|
}
|
|
|
|
/**
|
|
* gdk_dmabuf_texture_builder_get_update_texture: (attributes org.gtk.Method.get_property=update-texture)
|
|
* @self: a `GdkDmabufTextureBuilder`
|
|
*
|
|
* Gets the texture previously set via gdk_dmabuf_texture_builder_set_update_texture() or
|
|
* %NULL if none was set.
|
|
*
|
|
* Returns: (transfer none) (nullable): The texture
|
|
*
|
|
* Since: 4.14
|
|
*/
|
|
GdkTexture *
|
|
gdk_dmabuf_texture_builder_get_update_texture (GdkDmabufTextureBuilder *self)
|
|
{
|
|
g_return_val_if_fail (GDK_IS_DMABUF_TEXTURE_BUILDER (self), NULL);
|
|
|
|
return self->update_texture;
|
|
}
|
|
|
|
/**
|
|
* gdk_dmabuf_texture_builder_set_update_texture: (attributes org.gtk.Method.set_property=update-texture)
|
|
* @self: a `GdkDmabufTextureBuilder`
|
|
* @texture: (nullable): the texture to update
|
|
*
|
|
* Sets the texture to be updated by this texture. See
|
|
* [method@Gdk.DmabufTextureBuilder.set_update_region] for an explanation.
|
|
*
|
|
* Since: 4.14
|
|
*/
|
|
void
|
|
gdk_dmabuf_texture_builder_set_update_texture (GdkDmabufTextureBuilder *self,
|
|
GdkTexture *texture)
|
|
{
|
|
g_return_if_fail (GDK_IS_DMABUF_TEXTURE_BUILDER (self));
|
|
g_return_if_fail (texture == NULL || GDK_IS_TEXTURE (texture));
|
|
|
|
if (!g_set_object (&self->update_texture, texture))
|
|
return;
|
|
|
|
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_UPDATE_TEXTURE]);
|
|
}
|
|
|
|
/**
|
|
* gdk_dmabuf_texture_builder_get_update_region: (attributes org.gtk.Method.get_property=update-region)
|
|
* @self: a `GdkDmabufTextureBuilder`
|
|
*
|
|
* Gets the region previously set via gdk_dmabuf_texture_builder_set_update_region() or
|
|
* %NULL if none was set.
|
|
*
|
|
* Returns: (transfer none) (nullable): The region
|
|
*
|
|
* Since: 4.14
|
|
*/
|
|
cairo_region_t *
|
|
gdk_dmabuf_texture_builder_get_update_region (GdkDmabufTextureBuilder *self)
|
|
{
|
|
g_return_val_if_fail (GDK_IS_DMABUF_TEXTURE_BUILDER (self), NULL);
|
|
|
|
return self->update_region;
|
|
}
|
|
|
|
/**
|
|
* gdk_dmabuf_texture_builder_set_update_region: (attributes org.gtk.Method.set_property=update-region)
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* @self: a `GdkDmabufTextureBuilder`
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* @region: (nullable): the region to update
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*
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* Sets the region to be updated by this texture. Together with
|
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* [property@Gdk.DmabufTextureBuilder:update-texture] this describes an
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* update of a previous texture.
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*
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* When rendering animations of large textures, it is possible that
|
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* consecutive textures are only updating contents in parts of the texture.
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* It is then possible to describe this update via these two properties,
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* so that GTK can avoid rerendering parts that did not change.
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*
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* An example would be a screen recording where only the mouse pointer moves.
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*
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* Since: 4.14
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*/
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void
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gdk_dmabuf_texture_builder_set_update_region (GdkDmabufTextureBuilder *self,
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cairo_region_t *region)
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{
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g_return_if_fail (GDK_IS_DMABUF_TEXTURE_BUILDER (self));
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|
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if (self->update_region == region)
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return;
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g_clear_pointer (&self->update_region, cairo_region_destroy);
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|
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if (region)
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self->update_region = cairo_region_reference (region);
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|
|
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g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_UPDATE_REGION]);
|
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}
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|
|
|
/**
|
|
* gdk_dmabuf_texture_builder_build:
|
|
* @self: a `GdkDmabufTextureBuilder`
|
|
* @destroy: (nullable): destroy function to be called when the texture is
|
|
* released
|
|
* @data: user data to pass to the destroy function
|
|
* @error: Return location for an error
|
|
*
|
|
* Builds a new `GdkTexture` with the values set up in the builder.
|
|
*
|
|
* It is a programming error to call this function if any mandatory property has not been set.
|
|
*
|
|
* Not all formats defined in the `drm_fourcc.h` header are supported. You can use
|
|
* [method@Gdk.Display.get_dmabuf_formats] to get a list of supported formats. If the
|
|
* format is not supported by GTK, %NULL will be returned and @error will be set.
|
|
*
|
|
* The `destroy` function gets called when the returned texture gets released.
|
|
*
|
|
* It is the responsibility of the caller to keep the file descriptors for the planes
|
|
* open until the created texture is no longer used, and close them afterwards (possibly
|
|
* using the @destroy notify).
|
|
*
|
|
* It is possible to call this function multiple times to create multiple textures,
|
|
* possibly with changing properties in between.
|
|
*
|
|
* Returns: (transfer full) (nullable): a newly built `GdkTexture` or `NULL`
|
|
* if the format is not supported
|
|
*
|
|
* Since: 4.14
|
|
*/
|
|
GdkTexture *
|
|
gdk_dmabuf_texture_builder_build (GdkDmabufTextureBuilder *self,
|
|
GDestroyNotify destroy,
|
|
gpointer data,
|
|
GError **error)
|
|
{
|
|
unsigned i;
|
|
|
|
g_return_val_if_fail (GDK_IS_DMABUF_TEXTURE_BUILDER (self), NULL);
|
|
g_return_val_if_fail (destroy == NULL || data != NULL, NULL);
|
|
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
|
|
g_return_val_if_fail (self->width > 0, NULL);
|
|
g_return_val_if_fail (self->height > 0, NULL);
|
|
g_return_val_if_fail (self->dmabuf.fourcc != 0, NULL);
|
|
|
|
for (i = 0; i < self->dmabuf.n_planes; i++)
|
|
g_return_val_if_fail (self->dmabuf.planes[i].fd != -1, NULL);
|
|
|
|
if (GDK_DISPLAY_DEBUG_CHECK (self->display, DMABUF_DISABLE))
|
|
{
|
|
g_set_error_literal (error,
|
|
GDK_DMABUF_ERROR, GDK_DMABUF_ERROR_NOT_AVAILABLE,
|
|
"dmabuf support disabled via GDK_DEBUG environment variable");
|
|
return NULL;
|
|
}
|
|
|
|
return gdk_dmabuf_texture_new_from_builder (self, destroy, data, error);
|
|
}
|
|
|
|
const GdkDmabuf *
|
|
gdk_dmabuf_texture_builder_get_dmabuf (GdkDmabufTextureBuilder *self)
|
|
{
|
|
return &self->dmabuf;
|
|
}
|
|
|
|
void
|
|
gdk_dmabuf_texture_builder_set_dmabuf (GdkDmabufTextureBuilder *self,
|
|
const GdkDmabuf *dmabuf)
|
|
{
|
|
gdk_dmabuf_texture_builder_set_fourcc (self, dmabuf->fourcc);
|
|
gdk_dmabuf_texture_builder_set_modifier (self, dmabuf->modifier);
|
|
gdk_dmabuf_texture_builder_set_n_planes (self, dmabuf->n_planes);
|
|
|
|
for (unsigned int i = 0; i < dmabuf->n_planes; i++)
|
|
{
|
|
gdk_dmabuf_texture_builder_set_fd (self, i, dmabuf->planes[i].fd);
|
|
gdk_dmabuf_texture_builder_set_stride (self, i, dmabuf->planes[i].stride);
|
|
gdk_dmabuf_texture_builder_set_offset (self, i, dmabuf->planes[i].offset);
|
|
}
|
|
}
|