Move most backend functionality to VideoCommon

Source/Core/VideoBackends/Vulkan/Constants.h

@@ -26,39 +26,29 @@ enum STAGING_BUFFER_TYPE
 // Descriptor set layouts
 enum DESCRIPTOR_SET_LAYOUT
 {
-  DESCRIPTOR_SET_LAYOUT_SINGLE_UNIFORM_BUFFER,
-  DESCRIPTOR_SET_LAYOUT_PER_STAGE_UNIFORM_BUFFERS,
-  DESCRIPTOR_SET_LAYOUT_PIXEL_SHADER_SAMPLERS,
-  DESCRIPTOR_SET_LAYOUT_SHADER_STORAGE_BUFFERS,
-  DESCRIPTOR_SET_LAYOUT_TEXEL_BUFFERS,
+  DESCRIPTOR_SET_LAYOUT_STANDARD_UNIFORM_BUFFERS,
+  DESCRIPTOR_SET_LAYOUT_STANDARD_SAMPLERS,
+  DESCRIPTOR_SET_LAYOUT_STANDARD_SHADER_STORAGE_BUFFERS,
+  DESCRIPTOR_SET_LAYOUT_UTILITY_UNIFORM_BUFFER,
+  DESCRIPTOR_SET_LAYOUT_UTILITY_SAMPLERS,
   DESCRIPTOR_SET_LAYOUT_COMPUTE,
   NUM_DESCRIPTOR_SET_LAYOUTS
 };
 
-// Descriptor set bind points
-enum DESCRIPTOR_SET_BIND_POINT
-{
-  DESCRIPTOR_SET_BIND_POINT_UNIFORM_BUFFERS,
-  DESCRIPTOR_SET_BIND_POINT_PIXEL_SHADER_SAMPLERS,
-  DESCRIPTOR_SET_BIND_POINT_STORAGE_OR_TEXEL_BUFFER,
-  NUM_DESCRIPTOR_SET_BIND_POINTS
-};
-
 // We use four pipeline layouts:
 //   - Standard
-//       - Per-stage UBO (VS/GS/PS, VS constants accessible from PS)
-//       - 8 combined image samplers (accessible from PS)
-//       - 1 SSBO accessible from PS if supported
-//   - Push Constant
-//       - Same as standard, plus 128 bytes of push constants, accessible from all stages.
-//   - Texture Decoding
-//       - Same as push constant, plus a single texel buffer accessible from PS.
+//       - Per-stage UBO (VS/GS/PS, VS constants accessible from PS) [set=0, binding=0-2]
+//       - 8 combined image samplers (accessible from PS) [set=1, binding=0-7]
+//       - 1 SSBO accessible from PS if supported [set=2, binding=0]
+//   - Utility
+//       - 1 combined UBO, accessible from VS/GS/PS [set=0, binding=0]
+//       - 8 combined image samplers (accessible from PS) [set=1, binding=0-7]
+//       - 1 texel buffer (accessible from PS) [set=1, binding=8]
 //   - Compute
 //       - 1 uniform buffer [set=0, binding=0]
-//       - 4 combined image samplers [set=0, binding=1-4]
-//       - 1 texel buffer [set=0, binding=5]
-//       - 1 storage image [set=0, binding=6]
-//       - 128 bytes of push constants
+//       - 2 combined image samplers [set=0, binding=1-2]
+//       - 2 texel buffers [set=0, binding=3-4]
+//       - 1 storage image [set=0, binding=5]
 //
 // All four pipeline layout share the first two descriptor sets (uniform buffers, PS samplers).
 // The third descriptor set (see bind points above) is used for storage or texel buffers.
@@ -66,8 +56,6 @@ enum DESCRIPTOR_SET_BIND_POINT
 enum PIPELINE_LAYOUT
 {
   PIPELINE_LAYOUT_STANDARD,
-  PIPELINE_LAYOUT_PUSH_CONSTANT,
-  PIPELINE_LAYOUT_TEXTURE_CONVERSION,
   PIPELINE_LAYOUT_UTILITY,
   PIPELINE_LAYOUT_COMPUTE,
   NUM_PIPELINE_LAYOUTS
@@ -83,53 +71,22 @@ enum UNIFORM_BUFFER_DESCRIPTOR_SET_BINDING
 };
 
 // Maximum number of attributes per vertex (we don't have any more than this?)
-constexpr size_t MAX_VERTEX_ATTRIBUTES = 16;
+constexpr u32 MAX_VERTEX_ATTRIBUTES = 16;
 
 // Number of pixel shader texture slots
-constexpr size_t NUM_PIXEL_SHADER_SAMPLERS = 8;
+constexpr u32 NUM_PIXEL_SHADER_SAMPLERS = 8;
+constexpr u32 NUM_COMPUTE_SHADER_SAMPLERS = 2;
 
-// Total number of binding points in the pipeline layout
-constexpr size_t TOTAL_PIPELINE_BINDING_POINTS =
-    NUM_UBO_DESCRIPTOR_SET_BINDINGS + NUM_PIXEL_SHADER_SAMPLERS + 1;
-
-// Format of EFB textures
-constexpr VkFormat EFB_COLOR_TEXTURE_FORMAT = VK_FORMAT_R8G8B8A8_UNORM;
-constexpr VkFormat EFB_DEPTH_TEXTURE_FORMAT = VK_FORMAT_D32_SFLOAT;
-constexpr VkFormat EFB_DEPTH_AS_COLOR_TEXTURE_FORMAT = VK_FORMAT_R32_SFLOAT;
-
-// Format of texturecache textures
-constexpr VkFormat TEXTURECACHE_TEXTURE_FORMAT = VK_FORMAT_R8G8B8A8_UNORM;
+// Number of texel buffer binding points.
+constexpr u32 NUM_COMPUTE_TEXEL_BUFFERS = 2;
 
 // Textures that don't fit into this buffer will be uploaded with a separate buffer (see below).
-constexpr size_t INITIAL_TEXTURE_UPLOAD_BUFFER_SIZE = 16 * 1024 * 1024;
-constexpr size_t MAXIMUM_TEXTURE_UPLOAD_BUFFER_SIZE = 64 * 1024 * 1024;
+constexpr u32 TEXTURE_UPLOAD_BUFFER_SIZE = 32 * 1024 * 1024;
 
 // Textures greater than 1024*1024 will be put in staging textures that are released after
 // execution instead. A 2048x2048 texture is 16MB, and we'd only fit four of these in our
 // streaming buffer and be blocking frequently. Games are unlikely to have textures this
 // large anyway, so it's only really an issue for HD texture packs, and memory is not
 // a limiting factor in these scenarios anyway.
-constexpr size_t STAGING_TEXTURE_UPLOAD_THRESHOLD = 1024 * 1024 * 8;
-
-// Streaming uniform buffer size
-constexpr size_t INITIAL_UNIFORM_STREAM_BUFFER_SIZE = 16 * 1024 * 1024;
-constexpr size_t MAXIMUM_UNIFORM_STREAM_BUFFER_SIZE = 32 * 1024 * 1024;
-
-// Texel buffer size for palette and texture decoding.
-constexpr size_t TEXTURE_CONVERSION_TEXEL_BUFFER_SIZE = 8 * 1024 * 1024;
-
-// Push constant buffer size for utility shaders
-constexpr u32 PUSH_CONSTANT_BUFFER_SIZE = 128;
-
-// Minimum number of draw calls per command buffer when attempting to preempt a readback operation.
-constexpr u32 MINIMUM_DRAW_CALLS_PER_COMMAND_BUFFER_FOR_READBACK = 10;
-
-// Multisampling state info that we don't expose in VideoCommon.
-union MultisamplingState
-{
-  BitField<0, 5, u32> samples;             // 1-16
-  BitField<5, 1, u32> per_sample_shading;  // SSAA
-  u32 hex;
-};
-
+constexpr u32 STAGING_TEXTURE_UPLOAD_THRESHOLD = 1024 * 1024 * 4;
 }  // namespace Vulkan