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c2ec97e922
The GL branch should eventually call into gdk_gl_context_get_scale(), which is what checks for GDK_DEBUG=gl-fractional; whereas the Vulkan branch needs no change.
143 lines
4.0 KiB
C
143 lines
4.0 KiB
C
#include "config.h"
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#include "gsknglrendererprivate.h"
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#include "gskgpuimageprivate.h"
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#include "gskgpurendererprivate.h"
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#include "gskgldeviceprivate.h"
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#include "gskglframeprivate.h"
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#include "gskglimageprivate.h"
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#include "gdk/gdkglcontextprivate.h"
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struct _GskNglRenderer
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{
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GskGpuRenderer parent_instance;
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GskGpuImage *backbuffer;
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};
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struct _GskNglRendererClass
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{
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GskGpuRendererClass parent_class;
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};
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G_DEFINE_TYPE (GskNglRenderer, gsk_ngl_renderer, GSK_TYPE_GPU_RENDERER)
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static GdkDrawContext *
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gsk_ngl_renderer_create_context (GskGpuRenderer *renderer,
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GdkDisplay *display,
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GdkSurface *surface,
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GskGpuOptimizations *supported,
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GError **error)
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{
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GdkGLContext *context;
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if (surface)
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context = gdk_surface_create_gl_context (surface, error);
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else
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context = gdk_display_create_gl_context (display, error);
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if (context == NULL)
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return NULL;
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/* GLES 2 is not supported */
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gdk_gl_context_set_required_version (context, 3, 0);
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if (!gdk_gl_context_realize (context, error))
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{
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g_object_unref (context);
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return NULL;
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}
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gdk_gl_context_make_current (context);
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*supported = -1;
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if (!gdk_gl_context_check_version (context, "4.2", "9.9") &&
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!epoxy_has_gl_extension ("GL_EXT_base_instance") &&
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!epoxy_has_gl_extension ("GL_ARB_base_instance"))
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*supported &= ~GSK_GPU_OPTIMIZE_GL_BASE_INSTANCE;
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return GDK_DRAW_CONTEXT (context);
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}
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static void
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gsk_ngl_renderer_make_current (GskGpuRenderer *renderer)
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{
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gdk_gl_context_make_current (GDK_GL_CONTEXT (gsk_gpu_renderer_get_context (renderer)));
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}
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static GskGpuImage *
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gsk_ngl_renderer_get_backbuffer (GskGpuRenderer *renderer)
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{
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GskNglRenderer *self = GSK_NGL_RENDERER (renderer);
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GdkDrawContext *context;
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GdkSurface *surface;
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double scale;
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context = gsk_gpu_renderer_get_context (renderer);
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surface = gdk_draw_context_get_surface (context);
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scale = gsk_gpu_renderer_get_scale (renderer);
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if (self->backbuffer == NULL ||
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gsk_gpu_image_get_width (self->backbuffer) != ceil (gdk_surface_get_width (surface) * scale) ||
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gsk_gpu_image_get_height (self->backbuffer) != ceil (gdk_surface_get_height (surface) * scale))
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{
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g_clear_object (&self->backbuffer);
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self->backbuffer = gsk_gl_image_new_backbuffer (GSK_GL_DEVICE (gsk_gpu_renderer_get_device (renderer)),
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GDK_MEMORY_DEFAULT /* FIXME */,
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ceil (gdk_surface_get_width (surface) * scale),
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ceil (gdk_surface_get_height (surface) * scale));
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}
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return self->backbuffer;
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}
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static void
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gsk_ngl_renderer_wait (GskGpuRenderer *self,
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GskGpuFrame **frame,
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gsize n_frames)
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{
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}
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static double
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gsk_ngl_renderer_get_scale (GskGpuRenderer *self)
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{
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GdkDrawContext *context = gsk_gpu_renderer_get_context (self);
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return gdk_gl_context_get_scale (GDK_GL_CONTEXT (context));
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}
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static void
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gsk_ngl_renderer_class_init (GskNglRendererClass *klass)
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{
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GskGpuRendererClass *gpu_renderer_class = GSK_GPU_RENDERER_CLASS (klass);
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gpu_renderer_class->frame_type = GSK_TYPE_GL_FRAME;
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gpu_renderer_class->get_device = gsk_gl_device_get_for_display;
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gpu_renderer_class->create_context = gsk_ngl_renderer_create_context;
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gpu_renderer_class->make_current = gsk_ngl_renderer_make_current;
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gpu_renderer_class->get_backbuffer = gsk_ngl_renderer_get_backbuffer;
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gpu_renderer_class->wait = gsk_ngl_renderer_wait;
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gpu_renderer_class->get_scale = gsk_ngl_renderer_get_scale;
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}
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static void
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gsk_ngl_renderer_init (GskNglRenderer *self)
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{
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}
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/**
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* gsk_ngl_renderer_new:
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*
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* Creates an instance of the new experimental GL renderer.
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*
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* Returns: (transfer full): a new GL renderer
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*/
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GskRenderer *
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gsk_ngl_renderer_new (void)
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{
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return g_object_new (GSK_TYPE_NGL_RENDERER, NULL);
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}
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