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CDynamicVertexBuffer: Make use of std::array where applicable 

Same behavior, but eliminates hardcoded sizes.
This commit is contained in:
Lioncash 2020-06-18 04:42:54 -04:00
parent 65482ba272
commit 26f847494e
2 changed files with 21 additions and 23 deletions
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34
src/Core/OpenGL/CDynamicVertexBuffer.cpp
View File

@ -1,16 +1,13 @@
#include "CDynamicVertexBuffer.h"
#include "CVertexArrayManager.h"
static const uint32 gskAttribSize[] = {
#include <array>
constexpr std::array<uint32, 12> gskAttribSize{
0xC, 0xC, 0x4, 0x4, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8
};
CDynamicVertexBuffer::CDynamicVertexBuffer()
: mAttribFlags(EVertexAttribute::None)
, mBufferedFlags(EVertexAttribute::None)
, mNumVertices(0)
{
}
CDynamicVertexBuffer::CDynamicVertexBuffer() = default;
CDynamicVertexBuffer::~CDynamicVertexBuffer()
{
@ -44,7 +41,7 @@ void CDynamicVertexBuffer::SetActiveAttribs(FVertexDescription AttribFlags)
void CDynamicVertexBuffer::BufferAttrib(EVertexAttribute Attrib, const void *pkData)
{
uint32 Index;
size_t Index;
switch (Attrib)
{
@ -69,9 +66,9 @@ void CDynamicVertexBuffer::BufferAttrib(EVertexAttribute Attrib, const void *pkD
void CDynamicVertexBuffer::ClearBuffers()
{
for (uint32 iAttrib = 0; iAttrib < 12; iAttrib++)
for (uint32 iAttrib = 0; iAttrib < mAttribBuffers.size(); iAttrib++)
{
int Bit = 1 << iAttrib;
const int Bit = 1 << iAttrib;
if (mBufferedFlags & Bit)
glDeleteBuffers(1, &mAttribBuffers[iAttrib]);
@ -86,9 +83,9 @@ GLuint CDynamicVertexBuffer::CreateVAO()
glGenVertexArrays(1, &VertexArray);
glBindVertexArray(VertexArray);
for (uint32 iAttrib = 0; iAttrib < 12; iAttrib++)
for (uint32 iAttrib = 0; iAttrib < mAttribBuffers.size(); iAttrib++)
{
bool HasAttrib = ((3 << (iAttrib * 2)) != 0);
const bool HasAttrib = (3 << (iAttrib * 2)) != 0;
if (HasAttrib)
{
@ -96,7 +93,7 @@ GLuint CDynamicVertexBuffer::CreateVAO()
GLuint NumComponents;
GLenum DataType;
if ((iAttrib == 2) || (iAttrib == 3))
if (iAttrib == 2 || iAttrib == 3)
{
NumComponents = 4;
DataType = GL_UNSIGNED_BYTE;
@ -107,7 +104,7 @@ GLuint CDynamicVertexBuffer::CreateVAO()
DataType = GL_FLOAT;
}
glVertexAttribPointer(iAttrib, NumComponents, DataType, GL_FALSE, 0, (void*) 0);
glVertexAttribPointer(iAttrib, NumComponents, DataType, GL_FALSE, 0, nullptr);
glEnableVertexAttribArray(iAttrib);
}
}
@ -119,17 +116,18 @@ GLuint CDynamicVertexBuffer::CreateVAO()
// ************ PRIVATE ************
void CDynamicVertexBuffer::InitBuffers()
{
if (mBufferedFlags) ClearBuffers();
if (mBufferedFlags)
ClearBuffers();
for (uint32 iAttrib = 0; iAttrib < 12; iAttrib++)
for (uint32 iAttrib = 0; iAttrib < mAttribBuffers.size(); iAttrib++)
{
bool HasAttrib = ((3 << (iAttrib * 2)) != 0);
const bool HasAttrib = ((3 << (iAttrib * 2)) != 0);
if (HasAttrib)
{
glGenBuffers(1, &mAttribBuffers[iAttrib]);
glBindBuffer(GL_ARRAY_BUFFER, mAttribBuffers[iAttrib]);
glBufferData(GL_ARRAY_BUFFER, gskAttribSize[iAttrib] * mNumVertices, NULL, GL_DYNAMIC_DRAW);
glBufferData(GL_ARRAY_BUFFER, gskAttribSize[iAttrib] * mNumVertices, nullptr, GL_DYNAMIC_DRAW);
}
}
mBufferedFlags = mAttribFlags;

10
src/Core/OpenGL/CDynamicVertexBuffer.h
View File

@ -4,15 +4,15 @@
#include "Core/Resource/Model/EVertexAttribute.h"
#include <Common/BasicTypes.h>
#include <vector>
#include <array>
#include <GL/glew.h>
class CDynamicVertexBuffer
{
FVertexDescription mAttribFlags;
FVertexDescription mBufferedFlags;
uint32 mNumVertices;
GLuint mAttribBuffers[12];
FVertexDescription mAttribFlags{EVertexAttribute::None};
FVertexDescription mBufferedFlags{EVertexAttribute::None};
uint32 mNumVertices = 0;
std::array<GLuint, 12> mAttribBuffers{};
public:
CDynamicVertexBuffer();