Draw Manager: support for selection using engines

Needed to remove old draw code entirely.

Object mode selection support, pose and armature still need to be added.
Enabled when 'use_modern_viewport' is set.

1 files changed, 11 insertions, 1 deletions

diff --git a/source/blender/gpu/intern/gpu_viewport.c b/source/blender/gpu/intern/gpu_viewport.c
index 162b7e2d87a..3781a9c8be0 100644
--- a/source/blender/gpu/intern/gpu_viewport.c
+++ b/source/blender/gpu/intern/gpu_viewport.c
@@ -151,12 +151,22 @@ void *GPU_viewport_texture_list_get(GPUViewport *viewport)
 	return viewport->txl;
 }
 
-void GPU_viewport_size_get(GPUViewport *viewport, int *size)
+void GPU_viewport_size_get(const GPUViewport *viewport, int size[2])
 {
 	size[0] = viewport->size[0];
 	size[1] = viewport->size[1];
 }
 
+/**
+ * Special case, this is needed for when we have a viewport without a frame-buffer output
+ * (occlusion queries for eg) but still need to set the size since it may be used for other calculations.
+ */
+void GPU_viewport_size_set(GPUViewport *viewport, const int size[2])
+{
+	viewport->size[0] = size[0];
+	viewport->size[1] = size[1];
+}
+
 bool GPU_viewport_cache_validate(GPUViewport *viewport, unsigned int hash)
 {
 	bool dirty = false;