Starting to drive command buffer actions down to a graphics driver.

src/xenia/gpu/graphics_driver.h

@@ -0,0 +1,79 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2013 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#ifndef XENIA_GPU_GRAPHICS_DRIVER_H_
+#define XENIA_GPU_GRAPHICS_DRIVER_H_
+
+#include <xenia/core.h>
+#include <xenia/gpu/xenos/registers.h>
+
+
+namespace xe {
+namespace gpu {
+
+
+typedef enum {
+  XE_GPU_SHADER_TYPE_VERTEX               = 0x00,
+  XE_GPU_SHADER_TYPE_PIXEL                = 0x01,
+} XE_GPU_SHADER_TYPE;
+
+typedef enum {
+  XE_GPU_INVALIDATE_MASK_VERTEX_SHADER    = 1 << 8,
+  XE_GPU_INVALIDATE_MASK_PIXEL_SHADER     = 1 << 9,
+
+  XE_GPU_INVALIDATE_MASK_ALL              = 0x7FFF,
+} XE_GPU_INVALIDATE_MASK;
+
+typedef enum {
+  XE_GPU_PRIMITIVE_TYPE_POINT_LIST        = 0x01,
+  XE_GPU_PRIMITIVE_TYPE_LINE_LIST         = 0x02,
+  XE_GPU_PRIMITIVE_TYPE_LINE_STRIP        = 0x03,
+  XE_GPU_PRIMITIVE_TYPE_TRIANGLE_LIST     = 0x04,
+  XE_GPU_PRIMITIVE_TYPE_TRIANGLE_FAN      = 0x05,
+  XE_GPU_PRIMITIVE_TYPE_TRIANGLE_STRIP    = 0x06,
+  XE_GPU_PRIMITIVE_TYPE_UNKNOWN_07        = 0x07,
+  XE_GPU_PRIMITIVE_TYPE_RECTANGLE_LIST    = 0x08,
+  XE_GPU_PRIMITIVE_TYPE_LINE_LOOP         = 0x0C,
+} XE_GPU_PRIMITIVE_TYPE;
+
+
+class GraphicsDriver {
+public:
+  virtual ~GraphicsDriver();
+
+  xe_memory_ref memory();
+  xenos::RegisterFile* register_file() { return &register_file_; };
+
+  virtual void Initialize() = 0;
+
+  virtual void InvalidateState(
+      uint32_t mask) = 0;
+  virtual void SetShader(
+      XE_GPU_SHADER_TYPE type,
+      uint32_t address,
+      uint32_t start,
+      uint32_t size_dwords) = 0;
+  virtual void DrawIndexed(
+      XE_GPU_PRIMITIVE_TYPE prim_type,
+      uint32_t index_count) = 0;
+
+protected:
+  GraphicsDriver(xe_memory_ref memory);
+
+  xe_memory_ref memory_;
+
+  xenos::RegisterFile register_file_;
+};
+
+
+}  // namespace gpu
+}  // namespace xe
+
+
+#endif  // XENIA_GPU_GRAPHICS_DRIVER_H_