1 files changed, 159 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/draw/draw_llvm.h b/src/gallium/auxiliary/draw/draw_llvm.h
new file mode 100644
index 0000000000..58fee7f9d6
--- /dev/null
+++ b/src/gallium/auxiliary/draw/draw_llvm.h
@@ -0,0 +1,159 @@
+#ifndef HAVE_LLVM_H
+#define HAVE_LLVM_H
+
+#include "draw/draw_private.h"
+
+#include "pipe/p_context.h"
+
+#include <llvm-c/Core.h>
+#include <llvm-c/Analysis.h>
+#include <llvm-c/Target.h>
+#include <llvm-c/ExecutionEngine.h>
+
+struct draw_jit_texture
+{
+   uint32_t width;
+   uint32_t height;
+   uint32_t stride;
+   const void *data;
+};
+
+enum {
+   DRAW_JIT_TEXTURE_WIDTH = 0,
+   DRAW_JIT_TEXTURE_HEIGHT,
+   DRAW_JIT_TEXTURE_STRIDE,
+   DRAW_JIT_TEXTURE_DATA
+};
+
+enum {
+   DRAW_JIT_VERTEX_VERTEX_ID = 0,
+   DRAW_JIT_VERTEX_CLIP,
+   DRAW_JIT_VERTEX_DATA
+};
+
+/**
+ * This structure is passed directly to the generated vertex shader.
+ *
+ * It contains the derived state.
+ *
+ * Changes here must be reflected in the draw_jit_context_* macros.
+ * Changes to the ordering should be avoided.
+ *
+ * Only use types with a clear size and padding here, in particular prefer the
+ * stdint.h types to the basic integer types.
+ */
+struct draw_jit_context
+{
+   const float *vs_constants;
+   const float *gs_constants;
+
+
+   struct draw_jit_texture textures[PIPE_MAX_SAMPLERS];
+};
+
+
+#define draw_jit_context_vs_constants(_builder, _ptr) \
+   lp_build_struct_get(_builder, _ptr, 0, "vs_constants")
+
+#define draw_jit_context_gs_constants(_builder, _ptr) \
+   lp_build_struct_get(_builder, _ptr, 1, "gs_constants")
+
+#define DRAW_JIT_CONTEXT_TEXTURES_INDEX 2
+
+#define draw_jit_context_textures(_builder, _ptr) \
+   lp_build_struct_get_ptr(_builder, _ptr, DRAW_JIT_CONTEXT_TEXTURES_INDEX, "textures")
+
+
+
+#define draw_jit_header_id(_builder, _ptr)              \
+   lp_build_struct_get_ptr(_builder, _ptr, 0, "id")
+
+#define draw_jit_header_clip(_builder, _ptr) \
+   lp_build_struct_get(_builder, _ptr, 1, "clip")
+
+#define draw_jit_header_data(_builder, _ptr)            \
+   lp_build_struct_get_ptr(_builder, _ptr, 2, "data")
+
+
+#define draw_jit_vbuffer_stride(_builder, _ptr)         \
+   lp_build_struct_get(_builder, _ptr, 0, "stride")
+
+#define draw_jit_vbuffer_max_index(_builder, _ptr)      \
+   lp_build_struct_get(_builder, _ptr, 1, "max_index")
+
+#define draw_jit_vbuffer_offset(_builder, _ptr)         \
+   lp_build_struct_get(_builder, _ptr, 2, "buffer_offset")
+
+
+typedef void
+(*draw_jit_vert_func)(struct draw_jit_context *context,
+                      struct vertex_header *io,
+                      const char *vbuffers[PIPE_MAX_ATTRIBS],
+                      unsigned start,
+                      unsigned count,
+                      unsigned stride,
+                      struct pipe_vertex_buffer *vertex_buffers);
+
+
+typedef void
+(*draw_jit_vert_func_elts)(struct draw_jit_context *context,
+                           struct vertex_header *io,
+                           const char *vbuffers[PIPE_MAX_ATTRIBS],
+                           const unsigned *fetch_elts,
+                           unsigned fetch_count,
+                           unsigned stride,
+                           struct pipe_vertex_buffer *vertex_buffers);
+
+struct draw_llvm {
+   struct draw_context *draw;
+
+   struct draw_jit_context jit_context;
+
+   LLVMModuleRef module;
+   LLVMExecutionEngineRef engine;
+   LLVMModuleProviderRef provider;
+   LLVMTargetDataRef target;
+   LLVMPassManagerRef pass;
+
+   LLVMTypeRef context_ptr_type;
+   LLVMTypeRef vertex_header_ptr_type;
+   LLVMTypeRef buffer_ptr_type;
+   LLVMTypeRef vb_ptr_type;
+};
+
+struct draw_llvm_variant_key
+{
+   struct pipe_vertex_element vertex_element[PIPE_MAX_ATTRIBS];
+   unsigned                   nr_vertex_elements;
+   struct pipe_shader_state   vs;
+};
+
+struct draw_llvm_variant
+{
+   struct draw_llvm_variant_key key;
+   LLVMValueRef function;
+   LLVMValueRef function_elts;
+   draw_jit_vert_func jit_func;
+   draw_jit_vert_func_elts jit_func_elts;
+
+   struct draw_llvm_variant *next;
+};
+
+struct draw_llvm *
+draw_llvm_create(struct draw_context *draw);
+
+void
+draw_llvm_destroy(struct draw_llvm *llvm);
+
+struct draw_llvm_variant *
+draw_llvm_prepare(struct draw_llvm *llvm, int num_inputs);
+
+void
+draw_llvm_make_variant_key(struct draw_llvm *llvm,
+                           struct draw_llvm_variant_key *key);
+
+LLVMValueRef
+draw_llvm_translate_from(LLVMBuilderRef builder,
+                         LLVMValueRef vbuffer,
+                         enum pipe_format from_format);
+#endif