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gtk2/gsk/gskrenderer.h

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Initial implementation of GSK rendering pipeline GSK is conceptually split into two scene graphs: * a simple rendering tree of operations * a complex set of logical layers The latter is built on the former, and adds convenience and high level API for application developers. The lower layer, though, is what gets transformed into the rendering pipeline, as it's simple and thus can be transformed into appropriate rendering commands with minimal state changes. The lower layer is also suitable for reuse from more complex higher layers, like the CSS machinery in GTK, without necessarily port those layers to the GSK high level API. This lower layer is based on GskRenderNode instances, which represent the tree of rendering operations; and a GskRenderer instance, which takes the render nodes and submits them (after potentially reordering and transforming them to a more appropriate representation) to the underlying graphic system.
2016-03-17 13:48:19 +00:00
/* GSK - The GTK Scene Kit
*
* Copyright 2016 Endless
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __GSK_RENDERER_H__
#define __GSK_RENDERER_H__
#if !defined (__GSK_H_INSIDE__) && !defined (GSK_COMPILATION)
#error "Only <gsk/gsk.h> can be included directly."
#endif
#include <gsk/gsktypes.h>
#include <gsk/gskrendernode.h>
G_BEGIN_DECLS
#define GSK_TYPE_RENDERER (gsk_renderer_get_type ())
#define GSK_RENDERER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GSK_TYPE_RENDERER, GskRenderer))
#define GSK_IS_RENDERER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GSK_TYPE_RENDERER))
typedef struct _GskRendererClass GskRendererClass;
gsk: Bump up all version annotations GSK is part of the 4.0 development cycle.
2016-10-18 10:37:10 +00:00
GDK_AVAILABLE_IN_3_90
Initial implementation of GSK rendering pipeline GSK is conceptually split into two scene graphs: * a simple rendering tree of operations * a complex set of logical layers The latter is built on the former, and adds convenience and high level API for application developers. The lower layer, though, is what gets transformed into the rendering pipeline, as it's simple and thus can be transformed into appropriate rendering commands with minimal state changes. The lower layer is also suitable for reuse from more complex higher layers, like the CSS machinery in GTK, without necessarily port those layers to the GSK high level API. This lower layer is based on GskRenderNode instances, which represent the tree of rendering operations; and a GskRenderer instance, which takes the render nodes and submits them (after potentially reordering and transforming them to a more appropriate representation) to the underlying graphic system.
2016-03-17 13:48:19 +00:00
GType gsk_renderer_get_type (void) G_GNUC_CONST;
gsk: Bump up all version annotations GSK is part of the 4.0 development cycle.
2016-10-18 10:37:10 +00:00
GDK_AVAILABLE_IN_3_90
gsk: Add gsk_renderer_new_for_window() and remove gsk_renderer_get_for_display(). This new function returns a realized renderer. Because of that, GSK can catch failures to realize, destroy the renderer and try another one. Or in short: I can finally use GTK on Weston with the nvidia binary drivers again. Signed-off-by: Emmanuele Bassi <ebassi@gnome.org>
2016-11-29 03:27:21 +00:00
GskRenderer * gsk_renderer_new_for_window (GdkWindow *window);
Initial implementation of GSK rendering pipeline GSK is conceptually split into two scene graphs: * a simple rendering tree of operations * a complex set of logical layers The latter is built on the former, and adds convenience and high level API for application developers. The lower layer, though, is what gets transformed into the rendering pipeline, as it's simple and thus can be transformed into appropriate rendering commands with minimal state changes. The lower layer is also suitable for reuse from more complex higher layers, like the CSS machinery in GTK, without necessarily port those layers to the GSK high level API. This lower layer is based on GskRenderNode instances, which represent the tree of rendering operations; and a GskRenderer instance, which takes the render nodes and submits them (after potentially reordering and transforming them to a more appropriate representation) to the underlying graphic system.
2016-03-17 13:48:19 +00:00
gsk: Bump up all version annotations GSK is part of the 4.0 development cycle.
2016-10-18 10:37:10 +00:00
GDK_AVAILABLE_IN_3_90
Initial implementation of GSK rendering pipeline GSK is conceptually split into two scene graphs: * a simple rendering tree of operations * a complex set of logical layers The latter is built on the former, and adds convenience and high level API for application developers. The lower layer, though, is what gets transformed into the rendering pipeline, as it's simple and thus can be transformed into appropriate rendering commands with minimal state changes. The lower layer is also suitable for reuse from more complex higher layers, like the CSS machinery in GTK, without necessarily port those layers to the GSK high level API. This lower layer is based on GskRenderNode instances, which represent the tree of rendering operations; and a GskRenderer instance, which takes the render nodes and submits them (after potentially reordering and transforming them to a more appropriate representation) to the underlying graphic system.
2016-03-17 13:48:19 +00:00
GdkWindow * gsk_renderer_get_window (GskRenderer *renderer);
gsk: Rework GskRenderer and GskRenderNode semantics This commit changes the way GskRenderer and GskRenderNode interact and are meant to be used. GskRenderNode should represent a transient tree of rendering nodes, which are submitted to the GskRenderer at render time; this allows the renderer to take ownership of the render tree. Once the toolkit and application code have finished assembling it, the render tree ownership is transferred to the renderer.
2016-06-22 16:30:36 +00:00
gsk: Bump up all version annotations GSK is part of the 4.0 development cycle.
2016-10-18 10:37:10 +00:00
GDK_AVAILABLE_IN_3_90
Initial implementation of GSK rendering pipeline GSK is conceptually split into two scene graphs: * a simple rendering tree of operations * a complex set of logical layers The latter is built on the former, and adds convenience and high level API for application developers. The lower layer, though, is what gets transformed into the rendering pipeline, as it's simple and thus can be transformed into appropriate rendering commands with minimal state changes. The lower layer is also suitable for reuse from more complex higher layers, like the CSS machinery in GTK, without necessarily port those layers to the GSK high level API. This lower layer is based on GskRenderNode instances, which represent the tree of rendering operations; and a GskRenderer instance, which takes the render nodes and submits them (after potentially reordering and transforming them to a more appropriate representation) to the underlying graphic system.
2016-03-17 13:48:19 +00:00
GdkDisplay * gsk_renderer_get_display (GskRenderer *renderer);
gsk: Bump up all version annotations GSK is part of the 4.0 development cycle.
2016-10-18 10:37:10 +00:00
GDK_AVAILABLE_IN_3_90
gsk: Change gsk_renderer_realize() Instead of having a gsk_renderer_set_window() call, pass the window to realize(). This way, the realization can fail with the wrong window. Signed-off-by: Emmanuele Bassi <ebassi@gnome.org>
2016-11-29 02:36:33 +00:00
gboolean gsk_renderer_realize (GskRenderer *renderer,
gskrenderer: Add GError argument to gsk_renderer_realize() This way, we don't spam criticals when GL is not available. Instead, we print a useful debug message to stderr and continue with the Cairo renderer. Signed-off-by: Emmanuele Bassi <ebassi@gnome.org>
2016-11-29 03:51:07 +00:00
GdkWindow *window,
GError **error);
gsk: Bump up all version annotations GSK is part of the 4.0 development cycle.
2016-10-18 10:37:10 +00:00
GDK_AVAILABLE_IN_3_90
Initial implementation of GSK rendering pipeline GSK is conceptually split into two scene graphs: * a simple rendering tree of operations * a complex set of logical layers The latter is built on the former, and adds convenience and high level API for application developers. The lower layer, though, is what gets transformed into the rendering pipeline, as it's simple and thus can be transformed into appropriate rendering commands with minimal state changes. The lower layer is also suitable for reuse from more complex higher layers, like the CSS machinery in GTK, without necessarily port those layers to the GSK high level API. This lower layer is based on GskRenderNode instances, which represent the tree of rendering operations; and a GskRenderer instance, which takes the render nodes and submits them (after potentially reordering and transforming them to a more appropriate representation) to the underlying graphic system.
2016-03-17 13:48:19 +00:00
void gsk_renderer_unrealize (GskRenderer *renderer);
gsk: Tie render nodes to renderers Render nodes need access to rendering information like scaling factors. If we keep render nodes separate from renderers until we submit a nodes tree for rendering we're going to have to duplicate all that information in a way that makes the API more complicated and fuzzier on its semantics. By having GskRenderer create GskRenderNode instances we can tie nodes and renderers together; since higher layers will also have access to the renderer instance, this does not add any burden to callers. Additionally, if memory measurements indicate that we are spending too much time in the allocation of new render nodes, we can now easily implement a free-list or a renderer-specific allocator without breaking the API.
2016-07-27 15:23:44 +00:00
gsk: Add gsk_renderer_render_texture() ... and implement it for the Cairo renderer. It's an API that instructs a renderer to render to a texture. So far this is mostly meant to be used for testing, but I could imagine it being useful for rendering DND icons.
2016-12-21 19:23:46 +00:00
GDK_AVAILABLE_IN_3_90
GskTexture => GdkTexture We want this thing to replace GdkPixbuf, so it has to live in GDK.
2017-11-02 20:39:00 +00:00
GdkTexture * gsk_renderer_render_texture (GskRenderer *renderer,
gsk: Add gsk_renderer_render_texture() ... and implement it for the Cairo renderer. It's an API that instructs a renderer to render to a texture. So far this is mostly meant to be used for testing, but I could imagine it being useful for rendering DND icons.
2016-12-21 19:23:46 +00:00
GskRenderNode *root,
const graphene_rect_t *viewport);
gskrenderer: Store the GL context And use it to create the drawing context with it. Note that this doesn't yet have any effect and is all infrastructure preparation work.
2016-11-23 05:54:03 +00:00
GDK_AVAILABLE_IN_3_90
gskrenderer: Add gsk_renderer_begin_draw_frame() This way, we can hijack the begin/end draw process and do out own processing before passing it on to GDK.
2016-11-27 15:21:02 +00:00
GdkDrawingContext * gsk_renderer_begin_draw_frame (GskRenderer *renderer,
const cairo_region_t *region);
gsk: Bump up all version annotations GSK is part of the 4.0 development cycle.
2016-10-18 10:37:10 +00:00
GDK_AVAILABLE_IN_3_90
gsk: Rework GskRenderer and GskRenderNode semantics This commit changes the way GskRenderer and GskRenderNode interact and are meant to be used. GskRenderNode should represent a transient tree of rendering nodes, which are submitted to the GskRenderer at render time; this allows the renderer to take ownership of the render tree. Once the toolkit and application code have finished assembling it, the render tree ownership is transferred to the renderer.
2016-06-22 16:30:36 +00:00
void gsk_renderer_render (GskRenderer *renderer,
GskRenderNode *root,
GdkDrawingContext *context);
gskrenderer: Add gsk_renderer_begin_draw_frame() This way, we can hijack the begin/end draw process and do out own processing before passing it on to GDK.
2016-11-27 15:21:02 +00:00
GDK_AVAILABLE_IN_3_90
void gsk_renderer_end_draw_frame (GskRenderer *renderer,
GdkDrawingContext *context);
Initial implementation of GSK rendering pipeline GSK is conceptually split into two scene graphs: * a simple rendering tree of operations * a complex set of logical layers The latter is built on the former, and adds convenience and high level API for application developers. The lower layer, though, is what gets transformed into the rendering pipeline, as it's simple and thus can be transformed into appropriate rendering commands with minimal state changes. The lower layer is also suitable for reuse from more complex higher layers, like the CSS machinery in GTK, without necessarily port those layers to the GSK high level API. This lower layer is based on GskRenderNode instances, which represent the tree of rendering operations; and a GskRenderer instance, which takes the render nodes and submits them (after potentially reordering and transforming them to a more appropriate representation) to the underlying graphic system.
2016-03-17 13:48:19 +00:00
G_END_DECLS
#endif /* __GSK_RENDERER_H__ */
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