1 files changed, 86 insertions, 0 deletions
diff --git a/src/renderer/cleanroom/ral.h b/src/renderer/cleanroom/ral.h
new file mode 100644
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+++ b/src/renderer/cleanroom/ral.h
@@ -0,0 +1,86 @@
+/**
+ * @file ral.h
+ * @author your name (you@domain.com)
+ * @brief Render Abstraction Layer
+ * @details API that a graphics backend *must* implement
+ * @version 0.1
+ * @date 2024-03-31
+ * 
+ * @copyright Copyright (c) 2024
+ * 
+ */
+#pragma once
+
+#include "cleanroom/types.h"
+#include "defines.h"
+
+// Forward declare structs
+typedef struct gpu_swapchain gpu_swapchain;
+typedef struct gpu_device gpu_device;
+typedef struct gpu_pipeline gpu_pipeline;
+typedef struct gpu_renderpass gpu_renderpass;
+typedef struct gpu_cmd_encoder gpu_cmd_encoder; // Recording
+typedef struct gpu_cmd_buffer gpu_cmd_buffer;  // Ready for submission
+
+enum pipeline_kind {
+  GRAPHICS,
+  COMPUTE,
+} pipeline_kind;
+
+typedef struct shader_desc {
+  const char* debug_name;
+  str8 filepath; // where it came from
+  str8 glsl; // contents
+} shader_desc;
+
+struct pipeline_desc {
+  shader_desc vs; /** @brief Vertex shader stage */
+  shader_desc fs; /** @brief Fragment shader stage */
+};
+
+// lifecycle functions
+gpu_device* gpu_device_create();
+void gpu_device_destroy();
+
+gpu_renderpass* gpu_renderpass_create();
+void gpu_renderpass_destroy(gpu_renderpass* pass);
+
+gpu_pipeline* gpu_pipeline_create(enum pipeline_kind kind, struct pipeline_desc description);
+void gpu_pipeline_destroy(gpu_pipeline* pipeline);
+
+void gpu_cmd_encoder_begin();
+void gpu_cmd_encoder_begin_render();
+void gpu_cmd_encoder_begin_compute();
+
+/* Actual commands that we can encode */
+void encode_buffer_copy(gpu_cmd_encoder* encoder, buffer_handle src, u64 src_offset,
+                        buffer_handle dst, u64 dst_offset, u64 copy_size);
+void encode_clear_buffer(gpu_cmd_encoder* encoder, buffer_handle buf);
+void encode_set_pipeline(gpu_cmd_encoder* encoder, gpu_pipeline* pipeline);
+// render pass
+void encode_set_vertex_buffer(gpu_cmd_encoder* encoder, buffer_handle buf);
+void encode_set_index_buffer(gpu_cmd_encoder* encoder, buffer_handle buf);
+void encode_set_bind_group();
+void encode_draw(gpu_cmd_encoder* encoder);
+void encode_draw_indexed(gpu_cmd_encoder* encoder, u64 index_count);
+
+// FUTURE: compute passes
+
+/** @brief Finish recording and return a command buffer that can be submitted to a queue */
+gpu_cmd_buffer gpu_cmd_encoder_finish(gpu_cmd_encoder* encoder);
+
+void gpu_queue_submit(gpu_cmd_buffer* buffer);
+
+// Buffers
+void gpu_buffer_create(u64 size);
+void gpu_buffer_destroy(buffer_handle buffer);
+void gpu_buffer_upload();
+void gpu_buffer_bind(buffer_handle buffer);
+
+// Textures
+void gpu_texture_create();
+void gpu_texture_destroy();
+void gpu_texture_upload();
+
+// Samplers
+void gpu_sampler_create();
+\ No newline at end of file