3 files changed, 11 insertions, 4 deletions

diff --git a/src/video_core/renderer_vulkan/vk_blit_screen.cpp b/src/video_core/renderer_vulkan/vk_blit_screen.cpp
index 21644a7e7..fbd406f2b 100644
--- a/src/video_core/renderer_vulkan/vk_blit_screen.cpp
+++ b/src/video_core/renderer_vulkan/vk_blit_screen.cpp
@@ -535,7 +535,9 @@ void VKBlitScreen::CreateGraphicsPipeline() {
     viewport_state_ci.pNext = nullptr;
     viewport_state_ci.flags = 0;
     viewport_state_ci.viewportCount = 1;
+    viewport_state_ci.pViewports = nullptr;
     viewport_state_ci.scissorCount = 1;
+    viewport_state_ci.pScissors = nullptr;
 
     VkPipelineRasterizationStateCreateInfo rasterization_ci;
     rasterization_ci.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO;
diff --git a/src/video_core/renderer_vulkan/vk_rasterizer.cpp b/src/video_core/renderer_vulkan/vk_rasterizer.cpp
index 33cbc0bb6..774ba1f26 100644
--- a/src/video_core/renderer_vulkan/vk_rasterizer.cpp
+++ b/src/video_core/renderer_vulkan/vk_rasterizer.cpp
@@ -62,13 +62,16 @@ constexpr auto ComputeShaderIndex = static_cast<std::size_t>(Tegra::Engines::Sha
 
 VkViewport GetViewportState(const VKDevice& device, const Maxwell& regs, std::size_t index) {
     const auto& src = regs.viewport_transform[index];
+    const float width = src.scale_x * 2.0f;
+    const float height = src.scale_y * 2.0f;
+
     VkViewport viewport;
     viewport.x = src.translate_x - src.scale_x;
     viewport.y = src.translate_y - src.scale_y;
-    viewport.width = src.scale_x * 2.0f;
-    viewport.height = src.scale_y * 2.0f;
+    viewport.width = width != 0.0f ? width : 1.0f;
+    viewport.height = height != 0.0f ? height : 1.0f;
 
-    const float reduce_z = regs.depth_mode == Maxwell::DepthMode::MinusOneToOne;
+    const float reduce_z = regs.depth_mode == Maxwell::DepthMode::MinusOneToOne ? 1.0f : 0.0f;
     viewport.minDepth = src.translate_z - src.scale_z * reduce_z;
     viewport.maxDepth = src.translate_z + src.scale_z;
     if (!device.IsExtDepthRangeUnrestrictedSupported()) {
diff --git a/src/video_core/texture_cache/texture_cache.h b/src/video_core/texture_cache/texture_cache.h
index cfc7fe6e9..4edd4313b 100644
--- a/src/video_core/texture_cache/texture_cache.h
+++ b/src/video_core/texture_cache/texture_cache.h
@@ -509,7 +509,9 @@ private:
         }
         const auto& final_params = new_surface->GetSurfaceParams();
         if (cr_params.type != final_params.type) {
-            BufferCopy(current_surface, new_surface);
+            if (Settings::values.use_accurate_gpu_emulation) {
+                BufferCopy(current_surface, new_surface);
+            }
         } else {
             std::vector<CopyParams> bricks = current_surface->BreakDown(final_params);
             for (auto& brick : bricks) {