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gpu: Add gsk_gpu_node_processor_init_draw/finish_draw()

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These initialize/finish an offscreen and start drawing to it.

It simplifies the process of using offscreens quite a bit that way.
This commit is contained in:
Benjamin Otte 2023-12-28 07:05:58 +01:00
parent 9fe011b98f
commit b388c066dc
1 changed files with 54 additions and 24 deletions
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78
gsk/gpu/gskgpunodeprocessor.c
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@ -273,6 +273,54 @@ rect_round_to_pixels (const graphene_rect_t *src,
(ceil ((src->origin.y + src->size.height) * yscale) - y) * inv_yscale);
}
static GskGpuImage *
gsk_gpu_node_processor_init_draw (GskGpuNodeProcessor *self,
GskGpuFrame *frame,
GdkMemoryDepth depth,
const graphene_vec2_t *scale,
const graphene_rect_t *viewport)
{
GskGpuImage *image;
cairo_rectangle_int_t area;
area.x = 0;
area.y = 0;
area.width = ceil (graphene_vec2_get_x (scale) * viewport->size.width);
area.height = ceil (graphene_vec2_get_y (scale) * viewport->size.height);
image = gsk_gpu_device_create_offscreen_image (gsk_gpu_frame_get_device (frame),
FALSE,
depth,
area.width, area.height);
if (image == NULL)
return NULL;
gsk_gpu_node_processor_init (self,
frame,
NULL,
image,
&area,
viewport);
gsk_gpu_render_pass_begin_op (frame,
image,
&area,
GSK_RENDER_PASS_OFFSCREEN);
return image;
}
static void
gsk_gpu_node_processor_finish_draw (GskGpuNodeProcessor *self,
GskGpuImage *image)
{
gsk_gpu_render_pass_end_op (self->frame,
image,
GSK_RENDER_PASS_OFFSCREEN);
gsk_gpu_node_processor_finish (self);
}
void
gsk_gpu_node_processor_process (GskGpuFrame *frame,
GskGpuImage *target,
@ -2011,7 +2059,6 @@ gsk_gpu_node_processor_add_gradient_node (GskGpuNodeProcessor *self,
graphene_rect_t bounds;
gsize i, j;
GskGpuImage *image;
int width, height;
guint32 descriptor;
if (n_stops < 8)
@ -2038,24 +2085,11 @@ gsk_gpu_node_processor_add_gradient_node (GskGpuNodeProcessor *self,
return;
rect_round_to_pixels (&bounds, &self->scale, &bounds);
width = ceil (graphene_vec2_get_x (&self->scale) * bounds.size.width);
height = ceil (graphene_vec2_get_y (&self->scale) * bounds.size.height);
image = gsk_gpu_device_create_offscreen_image (gsk_gpu_frame_get_device (self->frame),
FALSE,
gsk_render_node_get_preferred_depth (node),
width, height);
gsk_gpu_node_processor_init (&other,
self->frame,
NULL,
image,
&(cairo_rectangle_int_t) { 0, 0, width, height },
&bounds);
gsk_gpu_render_pass_begin_op (other.frame,
image,
&(cairo_rectangle_int_t) { 0, 0, width, height },
GSK_RENDER_PASS_OFFSCREEN);
image = gsk_gpu_node_processor_init_draw (&other,
self->frame,
gsk_render_node_get_preferred_depth (node),
&self->scale,
&bounds);
other.blend = GSK_GPU_BLEND_ADD;
other.pending_globals |= GSK_GPU_GLOBAL_BLEND;
@ -2098,11 +2132,7 @@ gsk_gpu_node_processor_add_gradient_node (GskGpuNodeProcessor *self,
func (&other, node, real_stops, j);
}
gsk_gpu_render_pass_end_op (other.frame,
image,
GSK_RENDER_PASS_OFFSCREEN);
gsk_gpu_node_processor_finish (&other);
gsk_gpu_node_processor_finish_draw (&other, image);
descriptor = gsk_gpu_node_processor_add_image (self, image, GSK_GPU_SAMPLER_DEFAULT);