Revert "Revert "GPUShaderCreateInfo for interface abstraction""

This reverts commit edee5a947b7ea3e1324aa334a22c7c9bbf47f5f7.

Fixes compilation error (Missing file BLI_float2.hh)

1 files changed, 102 insertions, 0 deletions

diff --git a/source/blender/gpu/intern/gpu_shader_builder.cc b/source/blender/gpu/intern/gpu_shader_builder.cc
new file mode 100644
index 00000000000..334bdb2ec58
--- /dev/null
+++ b/source/blender/gpu/intern/gpu_shader_builder.cc
@@ -0,0 +1,102 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2021 Blender Foundation.
+ * All rights reserved.
+ */
+
+/** \file
+ * \ingroup gpu
+ *
+ * Compile time automation of shader compilation and validation.
+ */
+
+#include <iostream>
+
+#include "GHOST_C-api.h"
+
+#include "GPU_context.h"
+#include "GPU_init_exit.h"
+#include "gpu_shader_create_info_private.hh"
+
+#include "CLG_log.h"
+
+namespace blender::gpu::shader_builder {
+
+class ShaderBuilder {
+ private:
+  GHOST_SystemHandle ghost_system_;
+  GHOST_ContextHandle ghost_context_;
+  GPUContext *gpu_context_ = nullptr;
+
+ public:
+  void init();
+  bool bake_create_infos();
+  void exit();
+};
+
+bool ShaderBuilder::bake_create_infos()
+{
+  return gpu_shader_create_info_compile_all();
+}
+
+void ShaderBuilder::init()
+{
+  CLG_init();
+
+  GHOST_GLSettings glSettings = {0};
+  ghost_system_ = GHOST_CreateSystem();
+  ghost_context_ = GHOST_CreateOpenGLContext(ghost_system_, glSettings);
+  GHOST_ActivateOpenGLContext(ghost_context_);
+
+  gpu_context_ = GPU_context_create(nullptr);
+  GPU_init();
+}
+
+void ShaderBuilder::exit()
+{
+  GPU_backend_exit();
+  GPU_exit();
+
+  GPU_context_discard(gpu_context_);
+
+  GHOST_DisposeOpenGLContext(ghost_system_, ghost_context_);
+  GHOST_DisposeSystem(ghost_system_);
+
+  CLG_exit();
+}
+
+}  // namespace blender::gpu::shader_builder
+
+/** \brief Entry point for the shader_builder. */
+int main(int argc, const char *argv[])
+{
+  if (argc < 2) {
+    printf("Usage: %s <data_file_to>\n", argv[0]);
+    exit(1);
+  }
+
+  int exit_code = 0;
+
+  blender::gpu::shader_builder::ShaderBuilder builder;
+  builder.init();
+  if (!builder.bake_create_infos()) {
+    exit_code = 1;
+  }
+  builder.exit();
+  exit(exit_code);
+
+  return exit_code;
+}