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a865621519
As they require a draw context and the draw context is already bound to the surface, it makes much more sense and reduces abiguity by moving these APIs to the draw context. As a side effect, we simplify GdkSurface APIs to a point where GdkSurface now does not concern itself with drawing anymore at all, apart from being the object that creates draw contexts.
162 lines
4.2 KiB
C
162 lines
4.2 KiB
C
#include "config.h"
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#include "gskcairorendererprivate.h"
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#include "gskdebugprivate.h"
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#include "gskrendererprivate.h"
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#include "gskrendernodeprivate.h"
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#include "gdk/gdktextureprivate.h"
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#ifdef G_ENABLE_DEBUG
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typedef struct {
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GQuark cpu_time;
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GQuark gpu_time;
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} ProfileTimers;
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#endif
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struct _GskCairoRenderer
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{
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GskRenderer parent_instance;
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GdkCairoContext *cairo_context;
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#ifdef G_ENABLE_DEBUG
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ProfileTimers profile_timers;
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#endif
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};
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struct _GskCairoRendererClass
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{
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GskRendererClass parent_class;
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};
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G_DEFINE_TYPE (GskCairoRenderer, gsk_cairo_renderer, GSK_TYPE_RENDERER)
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static gboolean
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gsk_cairo_renderer_realize (GskRenderer *renderer,
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GdkSurface *surface,
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GError **error)
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{
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GskCairoRenderer *self = GSK_CAIRO_RENDERER (renderer);
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self->cairo_context = gdk_surface_create_cairo_context (surface);
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return TRUE;
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}
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static void
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gsk_cairo_renderer_unrealize (GskRenderer *renderer)
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{
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GskCairoRenderer *self = GSK_CAIRO_RENDERER (renderer);
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g_clear_object (&self->cairo_context);
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}
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static void
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gsk_cairo_renderer_do_render (GskRenderer *renderer,
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cairo_t *cr,
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GskRenderNode *root)
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{
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#ifdef G_ENABLE_DEBUG
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GskCairoRenderer *self = GSK_CAIRO_RENDERER (renderer);
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GskProfiler *profiler;
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gint64 cpu_time;
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#endif
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#ifdef G_ENABLE_DEBUG
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profiler = gsk_renderer_get_profiler (renderer);
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gsk_profiler_timer_begin (profiler, self->profile_timers.cpu_time);
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#endif
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gsk_render_node_draw (root, cr);
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#ifdef G_ENABLE_DEBUG
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cpu_time = gsk_profiler_timer_end (profiler, self->profile_timers.cpu_time);
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gsk_profiler_timer_set (profiler, self->profile_timers.cpu_time, cpu_time);
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gsk_profiler_push_samples (profiler);
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#endif
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}
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static GdkTexture *
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gsk_cairo_renderer_render_texture (GskRenderer *renderer,
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GskRenderNode *root,
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const graphene_rect_t *viewport)
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{
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GdkTexture *texture;
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cairo_surface_t *surface;
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cairo_t *cr;
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surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, ceil (viewport->size.width), ceil (viewport->size.height));
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cr = cairo_create (surface);
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cairo_translate (cr, - viewport->origin.x, - viewport->origin.y);
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gsk_cairo_renderer_do_render (renderer, cr, root);
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cairo_destroy (cr);
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texture = gdk_texture_new_for_surface (surface);
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cairo_surface_destroy (surface);
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return texture;
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}
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static void
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gsk_cairo_renderer_render (GskRenderer *renderer,
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GskRenderNode *root,
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const cairo_region_t *region)
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{
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GskCairoRenderer *self = GSK_CAIRO_RENDERER (renderer);
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cairo_t *cr;
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gdk_draw_context_begin_frame (GDK_DRAW_CONTEXT (self->cairo_context),
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region);
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cr = gdk_cairo_context_cairo_create (self->cairo_context);
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g_return_if_fail (cr != NULL);
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#ifdef G_ENABLE_DEBUG
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if (GSK_RENDERER_DEBUG_CHECK (renderer, GEOMETRY))
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{
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GdkSurface *surface = gsk_renderer_get_surface (renderer);
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cairo_save (cr);
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cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
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cairo_rectangle (cr,
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0, 0,
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gdk_surface_get_width (surface), gdk_surface_get_height (surface));
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cairo_set_source_rgba (cr, 0, 0, 0.85, 0.5);
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cairo_stroke (cr);
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cairo_restore (cr);
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}
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#endif
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gsk_cairo_renderer_do_render (renderer, cr, root);
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cairo_destroy (cr);
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gdk_draw_context_end_frame (GDK_DRAW_CONTEXT (self->cairo_context));
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}
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static void
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gsk_cairo_renderer_class_init (GskCairoRendererClass *klass)
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{
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GskRendererClass *renderer_class = GSK_RENDERER_CLASS (klass);
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renderer_class->realize = gsk_cairo_renderer_realize;
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renderer_class->unrealize = gsk_cairo_renderer_unrealize;
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renderer_class->render = gsk_cairo_renderer_render;
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renderer_class->render_texture = gsk_cairo_renderer_render_texture;
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}
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static void
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gsk_cairo_renderer_init (GskCairoRenderer *self)
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{
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#ifdef G_ENABLE_DEBUG
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GskProfiler *profiler = gsk_renderer_get_profiler (GSK_RENDERER (self));
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self->profile_timers.cpu_time = gsk_profiler_add_timer (profiler, "cpu-time", "CPU time", FALSE, TRUE);
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#endif
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}
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