Merge pull request #11349 from vonchenplus/buffer_cache_crash

video_core: Fix moltenvk crash on macos

src/video_core/buffer_cache/buffer_cache_base.h

@@ -62,7 +62,11 @@ using BufferId = SlotId;
 using VideoCore::Surface::PixelFormat;
 using namespace Common::Literals;
 
+#ifdef __APPLE__
+constexpr u32 NUM_VERTEX_BUFFERS = 16;
+#else
 constexpr u32 NUM_VERTEX_BUFFERS = 32;
+#endif
 constexpr u32 NUM_TRANSFORM_FEEDBACK_BUFFERS = 4;
 constexpr u32 NUM_GRAPHICS_UNIFORM_BUFFERS = 18;
 constexpr u32 NUM_COMPUTE_UNIFORM_BUFFERS = 8;

src/video_core/host_shaders/convert_d24s8_to_abgr8.frag

@@ -3,16 +3,16 @@
 
 #version 450
 
+precision mediump int;
+precision highp float;
+
 layout(binding = 0) uniform sampler2D depth_tex;
-layout(binding = 1) uniform isampler2D stencil_tex;
+layout(binding = 1) uniform usampler2D stencil_tex;
 
 layout(location = 0) out vec4 color;
 
 void main() {
     ivec2 coord = ivec2(gl_FragCoord.xy);
-    uint depth = uint(textureLod(depth_tex, coord, 0).r * (exp2(24.0) - 1.0f));
-    uint stencil = uint(textureLod(stencil_tex, coord, 0).r);
-
     highp uint depth_val =
         uint(textureLod(depth_tex, coord, 0).r * (exp2(32.0) - 1.0));
     lowp uint stencil_val = textureLod(stencil_tex, coord, 0).r;

src/video_core/host_shaders/convert_s8d24_to_abgr8.frag

@@ -3,16 +3,16 @@
 
 #version 450
 
+precision mediump int;
+precision highp float;
+
 layout(binding = 0) uniform sampler2D depth_tex;
-layout(binding = 1) uniform isampler2D stencil_tex;
+layout(binding = 1) uniform usampler2D stencil_tex;
 
 layout(location = 0) out vec4 color;
 
 void main() {
     ivec2 coord = ivec2(gl_FragCoord.xy);
-    uint depth = uint(textureLod(depth_tex, coord, 0).r * (exp2(24.0) - 1.0f));
-    uint stencil = uint(textureLod(stencil_tex, coord, 0).r);
-
     highp uint depth_val =
         uint(textureLod(depth_tex, coord, 0).r * (exp2(32.0) - 1.0));
     lowp uint stencil_val = textureLod(stencil_tex, coord, 0).r;

src/video_core/renderer_vulkan/vk_rasterizer.cpp

@@ -975,6 +975,19 @@ void RasterizerVulkan::UpdateScissorsState(Tegra::Engines::Maxwell3D::Regs& regs
     if (!state_tracker.TouchScissors()) {
         return;
     }
+    if (!regs.viewport_scale_offset_enabled) {
+        const auto x = static_cast<float>(regs.surface_clip.x);
+        const auto y = static_cast<float>(regs.surface_clip.y);
+        const auto width = static_cast<float>(regs.surface_clip.width);
+        const auto height = static_cast<float>(regs.surface_clip.height);
+        VkRect2D scissor;
+        scissor.offset.x = static_cast<u32>(x);
+        scissor.offset.y = static_cast<u32>(y);
+        scissor.extent.width = static_cast<u32>(width != 0.0f ? width : 1.0f);
+        scissor.extent.height = static_cast<u32>(height != 0.0f ? height : 1.0f);
+        scheduler.Record([scissor](vk::CommandBuffer cmdbuf) { cmdbuf.SetScissor(0, scissor); });
+        return;
+    }
     u32 up_scale = 1;
     u32 down_shift = 0;
     if (texture_cache.IsRescaling()) {