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gsk/vulkan/renderpass: Update scales from transform node

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Retrieve the scale from the transform node, and store it as long
as the transform node is being visited. This applies the proper
scale to text nodes.
This commit is contained in:
Georges Basile Stavracas Neto
2023-03-23 22:30:12 -03:00
parent e0aaf9bc83
commit ee1730dd49
1 changed files with 78 additions and 6 deletions
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84
gsk/vulkan/gskvulkanrenderpass.c
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@@ -503,28 +503,100 @@ gsk_vulkan_render_pass_add_transform_node (GskVulkanRenderPass *self,
GskVulkanOp op = {
.render.node = node
};
graphene_matrix_t transform, mv;
graphene_matrix_t old_mv;
GskRenderNode *child;
GskTransform *next_transform;
GskTransform *transform;
float new_scale_x = self->scale_x;
float new_scale_y = self->scale_x;
float old_scale_x;
float old_scale_y;
#if 0
if (!gsk_vulkan_clip_contains_rect (clip, &node->bounds))
FALLBACK ("Transform nodes can't deal with clip type %u\n", clip->type);
#endif
transform = gsk_transform_node_get_transform (node);
switch (gsk_transform_get_category (transform))
{
case GSK_TRANSFORM_CATEGORY_IDENTITY:
case GSK_TRANSFORM_CATEGORY_2D_TRANSLATE:
break;
case GSK_TRANSFORM_CATEGORY_2D_AFFINE:
{
float dx, dy;
gsk_transform_to_affine (transform, &new_scale_x, &new_scale_y, &dx, &dy);
}
break;
case GSK_TRANSFORM_CATEGORY_2D:
{
float xx, xy, yx, yy, dx, dy;
gsk_transform_to_2d (transform,
&xx, &xy, &yx, &yy, &dx, &dy);
new_scale_x = sqrtf (xx * xx + xy * xy);
new_scale_y = sqrtf (yx * yx + yy * yy);
}
break;
case GSK_TRANSFORM_CATEGORY_UNKNOWN:
case GSK_TRANSFORM_CATEGORY_ANY:
case GSK_TRANSFORM_CATEGORY_3D:
{
graphene_quaternion_t rotation;
graphene_matrix_t matrix;
graphene_vec4_t perspective;
graphene_vec3_t translation;
graphene_vec3_t scale;
graphene_vec3_t shear;
gsk_transform_to_matrix (transform, &matrix);
graphene_matrix_decompose (&matrix,
&translation,
&scale,
&rotation,
&shear,
&perspective);
new_scale_x = graphene_vec3_get_x (&scale);
new_scale_y = graphene_vec3_get_y (&scale);
}
break;
default:
break;
}
old_mv = self->mv;
old_scale_x = self->scale_x;
old_scale_y = self->scale_y;
self->scale_x = new_scale_x;
self->scale_y = new_scale_y;
next_transform = gsk_transform_matrix (gsk_transform_ref (transform), &self->mv);
gsk_transform_to_matrix (next_transform, &self->mv);
child = gsk_transform_node_get_child (node);
gsk_transform_to_matrix (gsk_transform_node_get_transform (node), &transform);
graphene_matrix_init_from_matrix (&mv, &self->mv);
graphene_matrix_multiply (&transform, &mv, &self->mv);
if (!gsk_vulkan_push_constants_transform (&op.constants.constants, constants, gsk_transform_node_get_transform (node), &child->bounds))
if (!gsk_vulkan_push_constants_transform (&op.constants.constants, constants, transform, &child->bounds))
FALLBACK ("Transform nodes can't deal with clip type %u", constants->clip.type);
op.type = GSK_VULKAN_OP_PUSH_VERTEX_CONSTANTS;
g_array_append_val (self->render_ops, op);
gsk_vulkan_render_pass_add_node (self, render, &op.constants.constants, child);
gsk_vulkan_push_constants_init_copy (&op.constants.constants, constants);
graphene_matrix_init_from_matrix (&self->mv, &mv);
g_array_append_val (self->render_ops, op);
self->scale_x = old_scale_x;
self->scale_y = old_scale_y;
self->mv = old_mv;
return TRUE;
}