Use std::span to pass vertex data

Starts utilizing
[std::span](https://en.cppreference.com/w/cpp/container/span) to
indicate a non-owning view of a contiguous array of elements rather than
`T* data, usize count`.
This commit is contained in:
Wunkolo 2023-06-16 07:28:35 -07:00
parent c6f5d19983
commit 553d23974a
5 changed files with 32 additions and 24 deletions

View file

@ -23,6 +23,7 @@
#include <functional>
#include <initializer_list>
#include <iostream>
#include <span>
#include <stdexcept>
#include <string_view>
#include <type_traits>
@ -388,18 +389,18 @@ namespace OpenGL {
void bind() { glBindBuffer(GL_ARRAY_BUFFER, m_handle); }
void free() { glDeleteBuffers(1, &m_handle); }
// Reallocates the buffer on every call. Prefer the sub version if possible.
template <typename VertType>
void bufferVerts(VertType* vertices, int vertCount, GLenum usage = GL_DYNAMIC_DRAW) {
glBufferData(GL_ARRAY_BUFFER, sizeof(VertType) * vertCount, vertices, usage);
}
// Reallocates the buffer on every call. Prefer the sub version if possible.
template <typename VertType>
void bufferVerts(std::span<const VertType> vertices, GLenum usage = GL_DYNAMIC_DRAW) {
glBufferData(GL_ARRAY_BUFFER, sizeof(VertType) * vertices.size(), vertices.data(), usage);
}
// Only use if you used createFixedSize
template <typename VertType>
void bufferVertsSub(VertType* vertices, int vertCount, GLintptr offset = 0) {
glBufferSubData(GL_ARRAY_BUFFER, offset, sizeof(VertType) * vertCount, vertices);
}
};
// Only use if you used createFixedSize
template <typename VertType>
void bufferVertsSub(std::span<const VertType> vertices, GLintptr offset = 0) {
glBufferSubData(GL_ARRAY_BUFFER, offset, sizeof(VertType) * vertices.size(), vertices.data());
}
};
enum DepthFunc {
Never = GL_NEVER, // Depth test never passes

View file

@ -1,5 +1,7 @@
#pragma once
#include <array>
#include <span>
#include "helpers.hpp"
#include "logger.hpp"
#include "opengl.hpp"
@ -68,12 +70,14 @@ public:
Renderer(GPU& gpu, const std::array<u32, regNum>& internalRegs) : gpu(gpu), regs(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(OpenGL::Primitives primType, Vertex* vertices, u32 count); // Draw the given vertices
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(OpenGL::Primitives primType, std::span<const Vertex> vertices); // Draw the given vertices
void setFBSize(u32 width, u32 height) {
fbSize.x() = width;