Henri Verbeet : wined3d: Implement scissor rectangle support for the Vulkan adapter.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 5e134b6b602bdafee7c222b93fbbe453297f86dc
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=5e134b6b602bdafee7c222b93...

Author: Henri Verbeet 
Date:   Wed May 20 00:20:29 2020 +0430

wined3d: Implement scissor rectangle support for the Vulkan adapter.

No multi-viewport support yet.

Signed-off-by: Henri Verbeet 
Signed-off-by: Alexandre Julliard

---

dlls/wined3d/context_vk.c | 24 +++++++++++++++++++-----
 1 file changed, 19 insertions(+), 5 deletions(-)

diff --git a/dlls/wined3d/context_vk.c b/dlls/wined3d/context_vk.c
index 19351d4b95..c114f8be7b 100644
--- a/dlls/wined3d/context_vk.c
+++ b/dlls/wined3d/context_vk.c
@@ -1462,7 +1462,9 @@ static bool wined3d_context_vk_update_graphics_pipeline_key(struct wined3d_conte
         update = true;
     }

-    if (wined3d_context_is_graphics_state_dirty(&context_vk->c, STATE_VIEWPORT))
+    if (wined3d_context_is_graphics_state_dirty(&context_vk->c, STATE_VIEWPORT)
+            || wined3d_context_is_graphics_state_dirty(&context_vk->c, STATE_SCISSORRECT)
+            || wined3d_context_is_graphics_state_dirty(&context_vk->c, STATE_RASTERIZER))
     {
         key->viewport.x = state->viewports[0].x;
         key->viewport.y = state->viewports[0].y;
@@ -1471,10 +1473,22 @@ static bool wined3d_context_vk_update_graphics_pipeline_key(struct wined3d_conte
         key->viewport.minDepth = state->viewports[0].min_z;
         key->viewport.maxDepth = state->viewports[0].max_z;

-        key->scissor.offset.x = key->viewport.x;
-        key->scissor.offset.y = key->viewport.y;
-        key->scissor.extent.width = key->viewport.width;
-        key->scissor.extent.height = key->viewport.height;
+        if (state->rasterizer_state && state->rasterizer_state->desc.scissor)
+        {
+            const RECT *r = &state->scissor_rects[0];
+
+            key->scissor.offset.x = r->left;
+            key->scissor.offset.y = r->top;
+            key->scissor.extent.width =  r->right - r->left;
+            key->scissor.extent.height = r->bottom - r->top;
+        }
+        else
+        {
+            key->scissor.offset.x = key->viewport.x;
+            key->scissor.offset.y = key->viewport.y;
+            key->scissor.extent.width = key->viewport.width;
+            key->scissor.extent.height = key->viewport.height;
+        }
         key->viewport.y += key->viewport.height;
         key->viewport.height = -key->viewport.height;