anv: implement VK_EXT_index_type_uint8

[mesa.git] / src / intel / vulkan / gen7_cmd_buffer.c

diff --git a/src/intel/vulkan/gen7_cmd_buffer.c b/src/intel/vulkan/gen7_cmd_buffer.c
index 115d12b35362b4b0c2fa2988c5c37cd873300b69..bfbbb7793f5a016efbd5309ac4acd6718120e4da 100644 (file)
--- a/src/intel/vulkan/gen7_cmd_buffer.c
+++ b/src/intel/vulkan/gen7_cmd_buffer.c
@@ -117,15 +117,33 @@ gen7_cmd_buffer_emit_scissor(struct anv_cmd_buffer *cmd_buffer)
 }
 #endif
 
-static const uint32_t vk_to_gen_index_type[] = {
-   [VK_INDEX_TYPE_UINT16]                       = INDEX_WORD,
-   [VK_INDEX_TYPE_UINT32]                       = INDEX_DWORD,
-};
+static uint32_t vk_to_gen_index_type(VkIndexType type)
+{
+   switch (type) {
+   case VK_INDEX_TYPE_UINT8_EXT:
+      return INDEX_BYTE;
+   case VK_INDEX_TYPE_UINT16:
+      return INDEX_WORD;
+   case VK_INDEX_TYPE_UINT32:
+      return INDEX_DWORD;
+   default:
+      unreachable("invalid index type");
+   }
+}
 
-static const uint32_t restart_index_for_type[] = {
-   [VK_INDEX_TYPE_UINT16]                    = UINT16_MAX,
-   [VK_INDEX_TYPE_UINT32]                    = UINT32_MAX,
-};
+static uint32_t restart_index_for_type(VkIndexType type)
+{
+   switch (type) {
+   case VK_INDEX_TYPE_UINT8_EXT:
+      return UINT8_MAX;
+   case VK_INDEX_TYPE_UINT16:
+      return UINT16_MAX;
+   case VK_INDEX_TYPE_UINT32:
+      return UINT32_MAX;
+   default:
+      unreachable("invalid index type");
+   }
+}
 
 void genX(CmdBindIndexBuffer)(
     VkCommandBuffer                             commandBuffer,
@@ -138,9 +156,9 @@ void genX(CmdBindIndexBuffer)(
 
    cmd_buffer->state.gfx.dirty |= ANV_CMD_DIRTY_INDEX_BUFFER;
    if (GEN_IS_HASWELL)
-      cmd_buffer->state.restart_index = restart_index_for_type[indexType];
+      cmd_buffer->state.restart_index = restart_index_for_type(indexType);
    cmd_buffer->state.gfx.gen7.index_buffer = buffer;
-   cmd_buffer->state.gfx.gen7.index_type = vk_to_gen_index_type[indexType];
+   cmd_buffer->state.gfx.gen7.index_type = vk_to_gen_index_type(indexType);
    cmd_buffer->state.gfx.gen7.index_offset = offset;
 }