Add DILIGENT_MAX_INLINE_CONSTANTS_SIZE constant (#748)

Author: hzqst

Graphics/GraphicsEngine/interface/Constants.h

@@ -62,6 +62,9 @@ DILIGENT_BEGIN_NAMESPACE(Diligent)
 /// Bit shift for the the shading X-axis rate.
 #define DILIGENT_SHADING_RATE_X_SHIFT 2
 
+/// Ineline constants data storage (max size is typically 128-256 bytes, use 256 for safety)
+#define DILIGENT_MAX_INLINE_CONSTANTS_SIZE 256
+
 static DILIGENT_CONSTEXPR Uint32 MAX_BUFFER_SLOTS        = DILIGENT_MAX_BUFFER_SLOTS;
 static DILIGENT_CONSTEXPR Uint32 MAX_RENDER_TARGETS      = DILIGENT_MAX_RENDER_TARGETS;
 static DILIGENT_CONSTEXPR Uint32 MAX_VIEWPORTS           = DILIGENT_MAX_VIEWPORTS;

Graphics/GraphicsEngineVulkan/include/VulkanUtilities/CommandBuffer.hpp

@@ -504,6 +504,18 @@ class CommandBuffer
         vkCmdBindDescriptorSets(m_VkCmdBuffer, pipelineBindPoint, layout, firstSet, descriptorSetCount, pDescriptorSets, dynamicOffsetCount, pDynamicOffsets);
     }
 
+    __forceinline void PushConstants(VkPipelineLayout   layout,
+                                     VkShaderStageFlags stageFlags,
+                                     uint32_t           offset,
+                                     uint32_t           size,
+                                     const void*        pValues)
+    {
+        VERIFY_EXPR(m_VkCmdBuffer != VK_NULL_HANDLE);
+        VERIFY_EXPR(pValues != nullptr);
+        VERIFY_EXPR(size > 0);
+        vkCmdPushConstants(m_VkCmdBuffer, layout, stageFlags, offset, size, pValues);
+    }
+
     __forceinline void CopyBuffer(VkBuffer            srcBuffer,
                                   VkBuffer            dstBuffer,
                                   uint32_t            regionCount,