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Introduce "Renderer" abstraction layer

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Adds a `renderer` class for which a rendering backend must implement and
will conditionally use OpenGL in the case that `ENABLE_GL` is enabled.
This commit is contained in:
Wunkolo 2023-07-10 08:53:16 -07:00
parent d664d5caf0
commit 2a1683ba62
9 changed files with 224 additions and 156 deletions
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22
include/renderer_gl/renderer_gl.hpp
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@ -4,20 +4,20 @@
#include <stb_image_write.h>
#include "PICA/float_types.hpp"
#include "PICA/pica_vertex.hpp"
#include "PICA/regs.hpp"
#include "gl_state.hpp"
#include "helpers.hpp"
#include "logger.hpp"
#include "renderer.hpp"
#include "surface_cache.hpp"
#include "textures.hpp"
#include "PICA/regs.hpp"
#include "PICA/pica_vertex.hpp"
// More circular dependencies!
class GPU;
class Renderer {
GPU& gpu;
GLStateManager& gl;
class RendererGL final : public Renderer {
GLStateManager gl = {};
OpenGL::Program triangleProgram;
OpenGL::Program displayProgram;
@ -31,7 +31,7 @@ class Renderer {
GLint textureEnvCombinerLoc = -1;
GLint textureEnvColorLoc = -1;
GLint textureEnvScaleLoc = -1;
// Uniform of PICA registers
GLint picaRegLoc = -1;
@ -50,7 +50,7 @@ class Renderer {
OpenGL::uvec2 fbSize; // The size of the framebuffer (ie both the colour and depth buffer)'
u32 colourBufferLoc; // Location in 3DS VRAM for the colour buffer
u32 colourBufferLoc; // Location in 3DS VRAM for the colour buffer
PICA::ColorFmt colourBufferFormat; // Format of the colours stored in the colour buffer
// Same for the depth/stencil buffer
@ -61,9 +61,6 @@ class Renderer {
OpenGL::VertexArray dummyVAO;
OpenGL::VertexBuffer dummyVBO;
static constexpr u32 regNum = 0x300; // Number of internal PICA registers
const std::array<u32, regNum>& regs;
OpenGL::Texture screenTexture;
GLuint lightLUTTextureArray;
OpenGL::Framebuffer screenFramebuffer;
@ -79,12 +76,11 @@ class Renderer {
void updateLightingLUT();
public:
Renderer(GPU& gpu, GLStateManager& gl, const std::array<u32, regNum>& internalRegs) : gpu(gpu), gl(gl), regs(internalRegs) {}
RendererGL(GPU& gpu, const std::array<u32, regNum>& internalRegs) : Renderer(gpu, internalRegs) {}
void reset();
void display(); // Display the 3DS screen contents to the window
void initGraphicsContext(); // Initialize graphics context
void getGraphicsContext(); // Set up graphics context for rendering
void clearBuffer(u32 startAddress, u32 endAddress, u32 value, u32 control); // Clear a GPU buffer in VRAM
void displayTransfer(u32 inputAddr, u32 outputAddr, u32 inputSize, u32 outputSize, u32 flags); // Perform display transfer
void drawVertices(PICA::PrimType primType, std::span<const PICA::Vertex> vertices); // Draw the given vertices
@ -107,6 +103,4 @@ class Renderer {
void setColourBufferLoc(u32 loc) { colourBufferLoc = loc; }
void setDepthBufferLoc(u32 loc) { depthBufferLoc = loc; }
static constexpr u32 vertexBufferSize = 0x10000;
};