Moar shader decompiler (#559)

* Renderer: Add prepareForDraw callback

* Add fmt submodule and port shader decompiler instructions to it

* Add shader acceleration setting

* Hook up vertex shaders to shader cache

* Shader decompiler: Fix redundant compilations

* Shader Decompiler: Fix vertex attribute upload

* Shader compiler: Simplify generated code for reading and faster compilation

* Further simplify shader decompiler output

* Shader decompiler: More smallen-ing

* Shader decompiler: Get PICA uniforms uploaded to the GPU

* Shader decompiler: Readd clipping

* Shader decompiler: Actually `break` on control flow instructions

* Shader decompiler: More control flow handling

* Shader decompiler: Fix desitnation mask

* Shader Decomp: Remove pair member capture in lambda (unsupported on NDK)

* Disgusting changes to handle the fact that hw shader shaders are 2x as big

* Shader decompiler: Implement proper output semantic mapping

* Moar instructions

* Shader decompiler: Add FLR/SLT/SLTI/SGE/SGEI

* Shader decompiler: Add register indexing

* Shader decompiler: Optimize mova with both x and y masked

* Shader decompiler: Add DPH/DPHI

* Fix shader caching being broken

* PICA decompiler: Cache VS uniforms

* Simply vertex cache code

* Simplify vertex cache code

* Shader decompiler: Add loops

* Shader decompiler: Implement safe multiplication

* Shader decompiler: Implement LG2/EX2

* Shader decompiler: More control flow

* Shader decompiler: Fix JMPU condition

* Shader decompiler: Convert main function to void

* PICA: Start implementing GPU vertex fetch

* More hw VAO work

* More hw VAO work

* More GPU vertex fetch code

* Add GL Stream Buffer from Duckstation

* GL: Actually upload data to stream buffers

* GPU: Cleanup immediate mode handling

* Get first renders working with accelerated draws

* Shader decompiler: Fix control flow analysis bugs

* HW shaders: Accelerate indexed draws

* Shader decompiler: Add support for compilation errors

* GLSL decompiler: Fall back for LITP

* Add Renderdoc scope classes

* Fix control flow analysis bug

* HW shaders: Fix attribute fetch

* Rewriting hw vertex fetch

* Stream buffer: Fix copy-paste mistake

* HW shaders: Fix indexed rendering

* HW shaders: Add padding attributes

* HW shaders: Avoid redundant glVertexAttrib4f calls

* HW shaders: Fix loops

* HW shaders: Make generated shaders slightly smaller

* Fix libretro build

* HW shaders: Fix android

* Remove redundant ubershader checks

* Set accelerate shader default to true

* Shader decompiler: Don't declare VS input attributes as an array

* Change ubuntu-latest to Ubuntu 24.04 because Microsoft screwed up their CI again

* fix merge conflict bug

third_party/duckstation/gl/stream_buffer.h

@@ -0,0 +1,53 @@
+// SPDX-FileCopyrightText: 2019-2023 Connor McLaughlin <stenzek@gmail.com>
+// SPDX-License-Identifier: (GPL-3.0 OR CC-BY-NC-ND-4.0)
+
+#pragma once
+
+#include <glad/gl.h>
+// Comment to avoid clang-format reordering the glad header
+
+#include <memory>
+#include <string_view>
+#include <tuple>
+#include <vector>
+
+#include "duckstation_compat.h"
+#include "helpers.hpp"
+
+class OpenGLStreamBuffer {
+  public:
+	virtual ~OpenGLStreamBuffer();
+
+	ALWAYS_INLINE GLuint GetGLBufferId() const { return m_buffer_id; }
+	ALWAYS_INLINE GLenum GetGLTarget() const { return m_target; }
+	ALWAYS_INLINE u32 GetSize() const { return m_size; }
+
+	void Bind();
+	void Unbind();
+
+	void SetDebugName(std::string_view name);
+
+	struct MappingResult {
+		void* pointer;
+		u32 buffer_offset;
+		u32 index_aligned;  // offset / alignment, suitable for base vertex
+		u32 space_aligned;  // remaining space / alignment
+	};
+
+	virtual MappingResult Map(u32 alignment, u32 min_size) = 0;
+
+	/// Returns the position in the buffer *before* the start of used_size.
+	virtual u32 Unmap(u32 used_size) = 0;
+
+	/// Returns the minimum granularity of blocks which sync objects will be created around.
+	virtual u32 GetChunkSize() const = 0;
+
+	static std::unique_ptr<OpenGLStreamBuffer> Create(GLenum target, u32 size);
+
+  protected:
+	OpenGLStreamBuffer(GLenum target, GLuint buffer_id, u32 size);
+
+	GLenum m_target;
+	GLuint m_buffer_id;
+	u32 m_size;
+};