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gtk2/gsk/gskcairorenderer.c

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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.
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#include "config.h"
#include "gskcairorendererprivate.h"
#include "gskdebugprivate.h"
#include "gskrendererprivate.h"
#include "gskrendernodeprivate.h"
GskTexture => GdkTexture We want this thing to replace GdkPixbuf, so it has to live in GDK.
2017-11-02 20:39:00 +00:00
#include "gdk/gdktextureprivate.h"
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.
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cairorenderer: Record cpu time in the profiler
2016-11-20 04:28:52 +00:00
#ifdef G_ENABLE_DEBUG
typedef struct {
GQuark cpu_time;
GQuark gpu_time;
} ProfileTimers;
#endif
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.
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struct _GskCairoRenderer
{
GskRenderer parent_instance;
cairorenderer: Record cpu time in the profiler
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#ifdef G_ENABLE_DEBUG
ProfileTimers profile_timers;
#endif
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.
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};
struct _GskCairoRendererClass
{
GskRendererClass parent_class;
};
G_DEFINE_TYPE (GskCairoRenderer, gsk_cairo_renderer, GSK_TYPE_RENDERER)
static gboolean
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
gsk_cairo_renderer_realize (GskRenderer *renderer,
GdkWindow *window,
GError **error)
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.
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{
return TRUE;
}
static void
gsk_cairo_renderer_unrealize (GskRenderer *renderer)
{
}
static void
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
gsk_cairo_renderer_do_render (GskRenderer *renderer,
cairo_t *cr,
GskRenderNode *root)
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.
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{
cairorenderer: Record cpu time in the profiler
2016-11-20 04:28:52 +00:00
#ifdef G_ENABLE_DEBUG
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.
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GskCairoRenderer *self = GSK_CAIRO_RENDERER (renderer);
cairorenderer: Record cpu time in the profiler
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GskProfiler *profiler;
gint64 cpu_time;
#endif
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
#ifdef G_ENABLE_DEBUG
profiler = gsk_renderer_get_profiler (renderer);
gsk_profiler_timer_begin (profiler, self->profile_timers.cpu_time);
#endif
gsk_render_node_draw (root, cr);
#ifdef G_ENABLE_DEBUG
cpu_time = gsk_profiler_timer_end (profiler, self->profile_timers.cpu_time);
gsk_profiler_timer_set (profiler, self->profile_timers.cpu_time, cpu_time);
gsk_profiler_push_samples (profiler);
#endif
}
GskTexture => GdkTexture We want this thing to replace GdkPixbuf, so it has to live in GDK.
2017-11-02 20:39:00 +00:00
static GdkTexture *
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.
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gsk_cairo_renderer_render_texture (GskRenderer *renderer,
GskRenderNode *root,
const graphene_rect_t *viewport)
{
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 *texture;
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.
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cairo_surface_t *surface;
cairo_t *cr;
surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, ceil (viewport->size.width), ceil (viewport->size.height));
cr = cairo_create (surface);
cairo_translate (cr, - viewport->origin.x, - viewport->origin.y);
gsk_cairo_renderer_do_render (renderer, cr, root);
cairo_destroy (cr);
GskTexture => GdkTexture We want this thing to replace GdkPixbuf, so it has to live in GDK.
2017-11-02 20:39:00 +00:00
texture = gdk_texture_new_for_surface (surface);
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.
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cairo_surface_destroy (surface);
return texture;
}
static void
gsk_cairo_renderer_render (GskRenderer *renderer,
GskRenderNode *root)
{
GdkDrawingContext *context = gsk_renderer_get_drawing_context (renderer);
GskRenderer: Remove viewport property
2017-11-04 19:05:56 +00:00
GdkWindow *window = gsk_renderer_get_window (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
gsk: Update Cairo renderer The Cairo renderer has been lagging behind a series of changes inside GskRenderer, like surface-less nodes, so it needs to be updated.
2016-08-25 10:29:00 +00:00
cairo_t *cr;
gsk: Remove gsk_renderer_create_fallback() Use gsk_render_node_draw() instead.
2016-12-13 04:07:43 +00:00
cr = gdk_drawing_context_get_cairo_context (context);
gsk: Add the ability to create fallback renderers While porting GTK to GskRenderer we noticed that the current fallback code for widgets using Cairo to draw is not enough to cover all the possible cases. For instance, if a container widget still uses GtkWidget::draw to render its children, and at least one of them has been ported to using render nodes instead, the container won't know how to draw it. For this reason we want to provide to layers above GSK the ability to create a "fallback" renderer instance, created using a "parent" GskRenderer instance, but using a Cairo context as the rendering target instead of a GdkDrawingContext. GTK will use this inside the gtk_widget_draw() implementation, if a widget implements GtkWidgetClass.get_render_node().
2016-08-25 10:31:56 +00:00
gsk: Remove gsk_renderer_create_fallback() Use gsk_render_node_draw() instead.
2016-12-13 04:07:43 +00:00
g_return_if_fail (cr != NULL);
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.
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if (GSK_RENDER_MODE_CHECK (GEOMETRY))
{
cairo_save (cr);
cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
cairo_rectangle (cr,
GskRenderer: Remove viewport property
2017-11-04 19:05:56 +00:00
0, 0,
gdk_window_get_width (window), gdk_window_get_height (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.
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cairo_set_source_rgba (cr, 0, 0, 0.85, 0.5);
cairo_stroke (cr);
cairo_restore (cr);
}
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
gsk_cairo_renderer_do_render (renderer, cr, root);
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.
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}
static void
gsk_cairo_renderer_class_init (GskCairoRendererClass *klass)
{
GskRendererClass *renderer_class = GSK_RENDERER_CLASS (klass);
renderer_class->realize = gsk_cairo_renderer_realize;
renderer_class->unrealize = gsk_cairo_renderer_unrealize;
renderer_class->render = gsk_cairo_renderer_render;
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
renderer_class->render_texture = gsk_cairo_renderer_render_texture;
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.
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}
static void
gsk_cairo_renderer_init (GskCairoRenderer *self)
{
cairorenderer: Record cpu time in the profiler
2016-11-20 04:28:52 +00:00
#ifdef G_ENABLE_DEBUG
GskProfiler *profiler = gsk_renderer_get_profiler (GSK_RENDERER (self));
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.
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cairorenderer: Record cpu time in the profiler
2016-11-20 04:28:52 +00:00
self->profile_timers.cpu_time = gsk_profiler_add_timer (profiler, "cpu-time", "CPU time", FALSE, TRUE);
#endif
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.
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}
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