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[PICA] Rework how external registers work, format

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wheremyfoodat 2023-08-04 00:42:11 +03:00
parent a8a76ab64d
commit 9695b57bf5
13 changed files with 54 additions and 38 deletions
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12
include/PICA/gpu.hpp
View file

@ -14,8 +14,11 @@
class GPU {
static constexpr u32 regNum = 0x300;
static constexpr u32 extRegNum = 0x1000;
using vec4f = std::array<Floats::f24, 4>;
using Registers = std::array<u32, regNum>;
using Registers = std::array<u32, regNum>; // Internal registers (named registers in short since they're the main ones)
using ExternalRegisters = std::array<u32, extRegNum>;
Memory& mem;
EmulatorConfig& config;
@ -29,7 +32,6 @@ class GPU {
static constexpr u32 vramSize = u32(6_MB);
Registers regs; // GPU internal registers
std::array<vec4f, 16> currentAttributes; // Vertex attributes before being passed to the shader
std::array<u32, 0x1000> external_regs; // GPU external registers
std::array<vec4f, 16> immediateModeAttributes; // Vertex attributes uploaded via immediate mode submission
std::array<PICA::Vertex, 3> immediateModeVertices;
@ -144,4 +146,10 @@ class GPU {
Helpers::panic("[GPU] Tried to access unknown physical address: %08X", paddr);
}
}
private:
// GPU external registers
// We have them in the end of the struct for cache locality reasons. Tl;dr we want the more commonly used things to be packed in the start
// Of the struct, instead of externalRegs being in the middle
ExternalRegisters externalRegs;
};

7
include/renderer.hpp
View file

@ -21,8 +21,11 @@ struct SDL_Window;
class Renderer {
protected:
GPU& gpu;
static constexpr u32 regNum = 0x300; // Number of internal PICA registers
static constexpr u32 regNum = 0x300; // Number of internal PICA registers
static constexpr u32 extRegNum = 0x1000; // Number of external PICA registers
const std::array<u32, regNum>& regs;
const std::array<u32, extRegNum>& externalRegs;
std::array<u32, 2> fbSize; // The size of the framebuffer (ie both the colour and depth buffer)'
@ -34,7 +37,7 @@ class Renderer {
PICA::DepthFmt depthBufferFormat;
public:
Renderer(GPU& gpu, const std::array<u32, regNum>& internalRegs);
Renderer(GPU& gpu, const std::array<u32, regNum>& internalRegs, const std::array<u32, extRegNum>& externalRegs);
virtual ~Renderer();
static constexpr u32 vertexBufferSize = 0x10000;

3
include/renderer_gl/renderer_gl.hpp
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@ -68,7 +68,8 @@ class RendererGL final : public Renderer {
void updateLightingLUT();
public:
RendererGL(GPU& gpu, const std::array<u32, regNum>& internalRegs) : Renderer(gpu, internalRegs) {}
RendererGL(GPU& gpu, const std::array<u32, regNum>& internalRegs, const std::array<u32, extRegNum>& externalRegs)
: Renderer(gpu, internalRegs, externalRegs) {}
~RendererGL() override;
void reset() override;

2
include/renderer_null/renderer_null.hpp
View file

@ -4,7 +4,7 @@ class GPU;
class RendererNull final : public Renderer {
public:
RendererNull(GPU& gpu, const std::array<u32, regNum>& internalRegs);
RendererNull(GPU& gpu, const std::array<u32, regNum>& internalRegs, const std::array<u32, extRegNum>& externalRegs);
~RendererNull() override;
void reset() override;

2
include/renderer_sw/renderer_sw.hpp
View file

@ -4,7 +4,7 @@ class GPU;
class RendererSw final : public Renderer {
public:
RendererSw(GPU& gpu, const std::array<u32, regNum>& internalRegs);
RendererSw(GPU& gpu, const std::array<u32, regNum>& internalRegs, const std::array<u32, extRegNum>& externalRegs);
~RendererSw() override;
void reset() override;

2
include/renderer_vk/renderer_vk.hpp
View file

@ -44,7 +44,7 @@ class RendererVK final : public Renderer {
u64 currentFrame = 0;
public:
RendererVK(GPU& gpu, const std::array<u32, regNum>& internalRegs);
RendererVK(GPU& gpu, const std::array<u32, regNum>& internalRegs, const std::array<u32, extRegNum>& externalRegs);
~RendererVK() override;
void reset() override;

44
src/core/PICA/gpu.cpp
View file

@ -16,11 +16,11 @@
#include "renderer_vk/renderer_vk.hpp"
#endif
constexpr u32 top_screen_width = 240;
constexpr u32 top_screen_height = 400;
constexpr u32 topScreenWidth = 240;
constexpr u32 topScreenHeight = 400;
constexpr u32 bottom_screen_width = 240;
constexpr u32 bottom_screen_height = 300;
constexpr u32 bottomScreenWidth = 240;
constexpr u32 bottomScreenHeight = 300;
using namespace Floats;
@ -32,24 +32,24 @@ GPU::GPU(Memory& mem, EmulatorConfig& config) : mem(mem), config(config) {
switch (config.rendererType) {
case RendererType::Null: {
renderer.reset(new RendererNull(*this, regs));
renderer.reset(new RendererNull(*this, regs, externalRegs));
break;
}
case RendererType::Software: {
renderer.reset(new RendererSw(*this, regs));
renderer.reset(new RendererSw(*this, regs, externalRegs));
break;
}
#ifdef PANDA3DS_ENABLE_OPENGL
case RendererType::OpenGL: {
renderer.reset(new RendererGL(*this, regs));
renderer.reset(new RendererGL(*this, regs, externalRegs));
break;
}
#endif
#ifdef PANDA3DS_ENABLE_VULKAN
case RendererType::Vulkan: {
renderer.reset(new RendererVK(*this, regs));
renderer.reset(new RendererVK(*this, regs, externalRegs));
break;
}
#endif
@ -88,22 +88,22 @@ void GPU::reset() {
using namespace PICA::ExternalRegs;
// Top screen addresses and dimentions.
external_regs[Framebuffer0AFirstAddr] = 0x181E6000;
external_regs[Framebuffer0ASecondAddr] = 0x1822C800;
external_regs[Framebuffer0BFirstAddr] = 0x18273000;
external_regs[Framebuffer0BSecondAddr] = 0x182B9800;
external_regs[Framebuffer0Size] = (top_screen_height << 16) | top_screen_width;
external_regs[Framebuffer0Stride] = 720;
external_regs[Framebuffer0Config] = static_cast<u32>(PICA::ColorFmt::RGB8);
external_regs[Framebuffer0Select] = 0;
externalRegs[Framebuffer0AFirstAddr] = 0x181E6000;
externalRegs[Framebuffer0ASecondAddr] = 0x1822C800;
externalRegs[Framebuffer0BFirstAddr] = 0x18273000;
externalRegs[Framebuffer0BSecondAddr] = 0x182B9800;
externalRegs[Framebuffer0Size] = (topScreenHeight << 16) | topScreenWidth;
externalRegs[Framebuffer0Stride] = 720;
externalRegs[Framebuffer0Config] = static_cast<u32>(PICA::ColorFmt::RGB8);
externalRegs[Framebuffer0Select] = 0;
// Bottom screen addresses and dimentions.
external_regs[Framebuffer1AFirstAddr] = 0x1848F000;
external_regs[Framebuffer1ASecondAddr] = 0x184C7800;
external_regs[Framebuffer1Size] = (bottom_screen_height << 16) | bottom_screen_width;
external_regs[Framebuffer1Stride] = 720;
external_regs[Framebuffer1Config] = static_cast<u32>(PICA::ColorFmt::RGB8);
external_regs[Framebuffer1Select] = 0;
externalRegs[Framebuffer1AFirstAddr] = 0x1848F000;
externalRegs[Framebuffer1ASecondAddr] = 0x184C7800;
externalRegs[Framebuffer1Size] = (bottomScreenHeight << 16) | bottomScreenWidth;
externalRegs[Framebuffer1Stride] = 720;
externalRegs[Framebuffer1Config] = static_cast<u32>(PICA::ColorFmt::RGB8);
externalRegs[Framebuffer1Select] = 0;
renderer->reset();
}

4
src/core/PICA/regs.cpp
View file

@ -35,7 +35,7 @@ u32 GPU::readExternalReg(u32 index) {
return -1;
}
return external_regs[index];
return externalRegs[index];
}
void GPU::writeExternalReg(u32 index, u32 value) {
@ -46,7 +46,7 @@ void GPU::writeExternalReg(u32 index, u32 value) {
return;
}
external_regs[index] = value;
externalRegs[index] = value;
}
u32 GPU::readInternalReg(u32 index) {

4
src/core/renderer_gl/renderer_gl.cpp
View file

@ -461,8 +461,8 @@ void RendererGL::display() {
OpenGL::disableClipPlane(1);
using namespace PICA::ExternalRegs;
const u32 topScreenAddr = gpu.readExternalReg(Framebuffer0AFirstAddr);
const u32 bottomScreenAddr = gpu.readExternalReg(Framebuffer1AFirstAddr);
const u32 topScreenAddr = externalRegs[Framebuffer0AFirstAddr];
const u32 bottomScreenAddr = externalRegs[Framebuffer1AFirstAddr];
auto topScreen = colourBufferCache.findFromAddress(topScreenAddr);
auto bottomScreen = colourBufferCache.findFromAddress(bottomScreenAddr);

3
src/core/renderer_null/renderer_null.cpp
View file

@ -1,6 +1,7 @@
#include "renderer_null/renderer_null.hpp"
RendererNull::RendererNull(GPU& gpu, const std::array<u32, regNum>& internalRegs) : Renderer(gpu, internalRegs) {}
RendererNull::RendererNull(GPU& gpu, const std::array<u32, regNum>& internalRegs, const std::array<u32, extRegNum>& externalRegs)
: Renderer(gpu, internalRegs, externalRegs) {}
RendererNull::~RendererNull() {}
void RendererNull::reset() {}

3
src/core/renderer_sw/renderer_sw.cpp
View file

@ -1,6 +1,7 @@
#include "renderer_sw/renderer_sw.hpp"
RendererSw::RendererSw(GPU& gpu, const std::array<u32, regNum>& internalRegs) : Renderer(gpu, internalRegs) {}
RendererSw::RendererSw(GPU& gpu, const std::array<u32, regNum>& internalRegs, const std::array<u32, extRegNum>& externalRegs)
: Renderer(gpu, internalRegs, externalRegs) {}
RendererSw::~RendererSw() {}
void RendererSw::reset() { printf("RendererSW: Unimplemented reset call\n"); }

3
src/core/renderer_vk/renderer_vk.cpp
View file

@ -200,7 +200,8 @@ vk::Result RendererVK::recreateSwapchain(vk::SurfaceKHR surface, vk::Extent2D sw
return vk::Result::eSuccess;
}
RendererVK::RendererVK(GPU& gpu, const std::array<u32, regNum>& internalRegs) : Renderer(gpu, internalRegs) {}
RendererVK::RendererVK(GPU& gpu, const std::array<u32, regNum>& internalRegs, const std::array<u32, extRegNum>& externalRegs)
: Renderer(gpu, internalRegs, externalRegs) {}
RendererVK::~RendererVK() {}

3
src/renderer.cpp
View file

@ -3,7 +3,8 @@
#include <algorithm>
#include <unordered_map>
Renderer::Renderer(GPU& gpu, const std::array<u32, regNum>& internalRegs) : gpu(gpu), regs(internalRegs) {}
Renderer::Renderer(GPU& gpu, const std::array<u32, regNum>& internalRegs, const std::array<u32, extRegNum>& externalRegs)
: gpu(gpu), regs(internalRegs), externalRegs(externalRegs) {}
Renderer::~Renderer() {}
std::optional<RendererType> Renderer::typeFromString(std::string inString) {