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gpu: Split out a function

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gsk_gpu_node_processor_rect_to_device() is a useful function to have,
even if it has to return FALSE sometimes when there is no simple 1:1
mapping - ie when the modelview contains a rotation.
This commit is contained in:
Benjamin Otte
2024-08-07 05:46:49 +02:00
parent 1abe9760ab
commit 08fcba63d0
1 changed files with 29 additions and 14 deletions
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43
gsk/gpu/gskgpunodeprocessor.c
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@@ -405,11 +405,11 @@ extract_scale_from_transform (GskTransform *transform,
}
static gboolean
gsk_gpu_node_processor_rect_is_integer (GskGpuNodeProcessor *self,
const graphene_rect_t *rect,
cairo_rectangle_int_t *int_rect)
gsk_gpu_node_processor_rect_clip_to_device (GskGpuNodeProcessor *self,
const graphene_rect_t *src,
graphene_rect_t *dest)
{
graphene_rect_t transformed_rect;
graphene_rect_t transformed;
float scale_x = graphene_vec2_get_x (&self->scale);
float scale_y = graphene_vec2_get_y (&self->scale);
@@ -425,8 +425,8 @@ gsk_gpu_node_processor_rect_is_integer (GskGpuNodeProcessor *self,
case GSK_FINE_TRANSFORM_CATEGORY_2D_NEGATIVE_AFFINE:
case GSK_FINE_TRANSFORM_CATEGORY_2D_AFFINE:
case GSK_FINE_TRANSFORM_CATEGORY_2D_TRANSLATE:
gsk_transform_transform_bounds (self->modelview, rect, &transformed_rect);
rect = &transformed_rect;
gsk_transform_transform_bounds (self->modelview, src, &transformed);
src = &transformed;
break;
case GSK_FINE_TRANSFORM_CATEGORY_IDENTITY:
@@ -434,15 +434,30 @@ gsk_gpu_node_processor_rect_is_integer (GskGpuNodeProcessor *self,
break;
}
int_rect->x = rect->origin.x * scale_x;
int_rect->y = rect->origin.y * scale_y;
int_rect->width = rect->size.width * scale_x;
int_rect->height = rect->size.height * scale_y;
dest->origin.x = src->origin.x * scale_x;
dest->origin.y = src->origin.y * scale_y;
dest->size.width = src->size.width * scale_x;
dest->size.height = src->size.height * scale_y;
return int_rect->x == rect->origin.x * scale_x
&& int_rect->y == rect->origin.y * scale_y
&& int_rect->width == rect->size.width * scale_x
&& int_rect->height == rect->size.height * scale_y;
return TRUE;
}
static gboolean
gsk_gpu_node_processor_rect_is_integer (GskGpuNodeProcessor *self,
const graphene_rect_t *rect,
cairo_rectangle_int_t *int_rect)
{
graphene_rect_t tmp;
if (!gsk_gpu_node_processor_rect_clip_to_device (self, rect, &tmp))
return FALSE;
gsk_rect_to_cairo_shrink (&tmp, int_rect);
return int_rect->x == tmp.origin.x
&& int_rect->y == tmp.origin.y
&& int_rect->width == tmp.size.width
&& int_rect->height == tmp.size.height;
}
static void