diff options
Diffstat (limited to 'gsk/vulkan/gskvulkanrenderpass.c')
| -rw-r--r-- | gsk/vulkan/gskvulkanrenderpass.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/gsk/vulkan/gskvulkanrenderpass.c b/gsk/vulkan/gskvulkanrenderpass.c index 63e9beeea9..ae15fa478a 100644 --- a/gsk/vulkan/gskvulkanrenderpass.c +++ b/gsk/vulkan/gskvulkanrenderpass.c @@ -621,7 +621,7 @@ gsk_vulkan_render_pass_add_transform_node (GskVulkanRenderPass *self, graphene_vec3_t matrix_scale; graphene_vec3_t shear; GskTransform *clip_transform; - float scale_x, scale_y; + float scale_x, scale_y, old_pixels, new_pixels; clip_transform = gsk_transform_transform (gsk_transform_translate (NULL, &state->offset), transform); @@ -648,6 +648,15 @@ gsk_vulkan_render_pass_add_transform_node (GskVulkanRenderPass *self, scale_x = fabs (graphene_vec3_get_x (&matrix_scale)); scale_y = fabs (graphene_vec3_get_y (&matrix_scale)); + old_pixels = graphene_vec2_get_x (&state->scale) * graphene_vec2_get_y (&state->scale) * + state->clip.rect.bounds.size.width * state->clip.rect.bounds.size.height; + new_pixels = scale_x * scale_y * new_state.clip.rect.bounds.size.width * new_state.clip.rect.bounds.size.height; + if (new_pixels > 2 * old_pixels) + { + float forced_downscale = 2 * old_pixels / new_pixels; + scale_x *= forced_downscale; + scale_y *= forced_downscale; + } new_state.modelview = gsk_transform_scale (new_state.modelview, 1 / scale_x, 1 / scale_y); graphene_vec2_init (&new_state.scale, scale_x, scale_y); new_state.offset = *graphene_point_zero (); |