chore: make RendererTexture.cpp more accurate

This commit is contained in:
3UR
2026-03-02 10:08:19 +10:00
parent ce1e29429e
commit b0259bea75

View File

@@ -1,329 +1,304 @@
#pragma once
#include "Renderer.h"
#include "libpng/png.h"
#include <cstdint>
#include <cstring>
#include <limits>
#include <new>
unsigned char* dataStart;
unsigned char* dataCurr;
unsigned char* dataEnd;
DXGI_FORMAT Renderer::textureFormats[C4JRender::MAX_TEXTURE_FORMATS] = {
DXGI_FORMAT_B8G8R8A8_UNORM,
};
DXGI_FORMAT Renderer::textureFormats[] = { DXGI_FORMAT_R8G8B8A8_UNORM };
int Renderer::TextureCreate() {
for (int i = 0; i < 512; ++i) {
Texture &texture = m_textures[i];
if (!texture.allocated) {
texture.texture = nullptr;
texture.allocated = true;
texture.mipLevels = 1;
texture.samplerParams = 0;
return i;
void user_write_data_init(unsigned char* pBuffer, int size)
{
dataStart = pBuffer;
dataCurr = pBuffer;
dataEnd = pBuffer + size;
}
int user_write_data_bytes_written()
{
return (int)(dataCurr - dataStart);
}
void user_write_data(png_struct_def* png_ptr, unsigned char* data, size_t length)
{
int canWrite = (int)((unsigned char*)dataEnd - (unsigned char*)dataCurr);
if ((int)length < canWrite)
canWrite = (int)length;
memcpy(dataCurr, data, canWrite);
dataCurr = (unsigned char*)dataCurr + canWrite;
}
void user_flush_data(png_struct_def* png_ptr)
{
// TODO(3UR): this is for a different platform? it's empty in Render_PC.lib but not Render.lib
}
int Renderer::TextureCreate()
{
for (int i = 0; i < MAX_TEXTURES; i++)
{
if (!m_textures[i].allocated)
{
m_textures[i].texture = NULL;
m_textures[i].allocated = true;
m_textures[i].mipLevels = 1;
m_textures[i].textureFormat = 0;
return i;
}
}
}
return -1;
return -1;
}
void Renderer::TextureSetTextureLevels(int levels) {
const int boundTextureIndex = this->getContext().boundTextureIndex;
m_textures[boundTextureIndex].mipLevels = levels;
void Renderer::TextureFree(int idx)
{
m_textures[idx].texture->Release();
m_textures[idx].view->Release();
m_textures[idx].view = NULL;
m_textures[idx].allocated = false;
m_textures[idx].texture = NULL;
}
int Renderer::TextureGetTextureLevels() {
const int boundTextureIndex = this->getContext().boundTextureIndex;
return m_textures[boundTextureIndex].mipLevels;
void Renderer::TextureBind(int idx)
{
if (idx == -1)
idx = defaultTextureIndex;
Context& c = this->getContext();
if (c.commandBuffer && c.commandBuffer->isActive)
c.commandBuffer->BindTexture(idx);
c.boundTextureIndex = idx;
c.m_pDeviceContext->PSSetShaderResources(0, 1, &m_textures[idx].view);
UpdateTextureState(false);
}
void Renderer::TextureSetParam(int param, int value) {
Texture &texture = m_textures[this->getContext().boundTextureIndex];
void Renderer::TextureBindVertex(int idx)
{
if (idx == -1)
idx = defaultTextureIndex;
switch (param) {
case GL_TEXTURE_MIN_FILTER:
texture.samplerParams &= ~4u;
if (value == 1) {
texture.samplerParams |= 4u;
Context& c = this->getContext();
c.boundTextureIndex = idx;
c.m_pDeviceContext->VSSetShaderResources(0, 1, &m_textures[idx].view);
UpdateTextureState(true);
}
void Renderer::TextureSetTextureLevels(int levels)
{
Context& c = this->getContext();
m_textures[c.boundTextureIndex].mipLevels = levels;
}
int Renderer::TextureGetTextureLevels()
{
Context& c = this->getContext();
return m_textures[c.boundTextureIndex].mipLevels;
}
void Renderer::TextureData(int width, int height, void* data, int level, C4JRender::eTextureFormat format)
{
Context& c = this->getContext();
int idx = c.boundTextureIndex;
m_textures[idx].textureFormat = format;
if (level == 0)
{
D3D11_TEXTURE2D_DESC desc;
desc.Width = width;
desc.Height = height;
desc.MipLevels = m_textures[idx].mipLevels;
desc.ArraySize = 1;
desc.Format = (DXGI_FORMAT)textureFormats[format];
desc.SampleDesc.Count = 1;
desc.SampleDesc.Quality = 0;
desc.Usage = D3D11_USAGE_DEFAULT;
desc.BindFlags = D3D11_BIND_SHADER_RESOURCE;
desc.CPUAccessFlags = 0;
desc.MiscFlags = 0;
m_pDevice->CreateTexture2D(&desc, NULL, (ID3D11Texture2D**)&m_textures[idx].texture);
m_pDevice->CreateShaderResourceView(m_textures[idx].texture, NULL, &m_textures[idx].view);
}
break;
case GL_TEXTURE_MAG_FILTER:
texture.samplerParams &= ~8u;
if (value == 1) {
texture.samplerParams |= 8u;
c.m_pDeviceContext->UpdateSubresource(
m_textures[idx].texture,
level,
NULL,
data,
width * 4,
width * height * 4
);
}
void Renderer::TextureDataUpdate(int xoffset, int yoffset, int width, int height, void* data, int level)
{
Context& c = this->getContext();
int idx = c.boundTextureIndex;
D3D11_TEXTURE2D_DESC desc;
m_textures[idx].texture->GetDesc(&desc);
D3D11_BOX box;
box.left = xoffset;
box.top = yoffset;
box.right = xoffset + width;
box.bottom = yoffset + height;
box.front = 0;
box.back = 1;
c.m_pDeviceContext->UpdateSubresource(
m_textures[idx].texture,
level,
&box,
data,
width * 4,
width * height * 4
);
}
void Renderer::TextureSetParam(int param, int value)
{
Context& c = this->getContext();
int idx = c.boundTextureIndex;
switch (param)
{
case GL_TEXTURE_MIN_FILTER:
m_textures[idx].samplerParams &= ~4u;
if (value == GL_LINEAR)
m_textures[idx].samplerParams |= 4u;
break;
case GL_TEXTURE_MAG_FILTER:
m_textures[idx].samplerParams &= ~8u;
if (value == GL_LINEAR)
m_textures[idx].samplerParams |= 8u;
break;
case GL_TEXTURE_WRAP_S:
m_textures[idx].samplerParams &= ~1u;
if (value == GL_CLAMP)
m_textures[idx].samplerParams |= 1u;
break;
case GL_TEXTURE_WRAP_T:
m_textures[idx].samplerParams &= ~2u;
if (value == GL_CLAMP)
m_textures[idx].samplerParams |= 2u;
break;
}
break;
case GL_TEXTURE_WRAP_S:
texture.samplerParams &= ~1u;
if (value == 0) {
texture.samplerParams |= 1u;
}
void Renderer::TextureDynamicUpdateStart()
{
// TODO: this is for a different platform? it's empty in Render_PC.lib but not Render.lib
}
void Renderer::TextureDynamicUpdateEnd()
{
// TODO: this is for a different platform? it's empty in Render_PC.lib but not Render.lib
}
void Renderer::UpdateTextureState(bool bVertex)
{
Context& c = this->getContext();
ID3D11SamplerState* pSampler = GetManagedSamplerState();
if (bVertex)
c.m_pDeviceContext->VSSetSamplers(0, 1, &pSampler);
else
c.m_pDeviceContext->PSSetSamplers(0, 1, &pSampler);
}
HRESULT Renderer::LoadTextureData(const char* szFilename, D3DXIMAGE_INFO* pSrcInfo, int** ppDataOut)
{
png_image image;
memset(&image, 0, sizeof(image));
image.version = PNG_IMAGE_VERSION;
png_image_begin_read_from_file(&image, szFilename);
if ((image.format & 3u) > 1)
return -1;
image.format = PNG_FORMAT_RGBA;
*ppDataOut = new int[image.width * image.height];
if (!*ppDataOut || !png_image_finish_read(&image, NULL, *ppDataOut, 0, NULL))
return -1;
pSrcInfo->Width = image.width;
pSrcInfo->Height = image.height;
return S_OK;
}
HRESULT Renderer::LoadTextureData(BYTE* pbData, DWORD dwBytes, D3DXIMAGE_INFO* pSrcInfo, int** ppDataOut)
{
png_image image;
memset(&image, 0, sizeof(image));
image.version = PNG_IMAGE_VERSION;
png_image_begin_read_from_memory(&image, pbData, dwBytes);
if ((image.format & 3u) > 1)
return -1;
image.format = PNG_FORMAT_RGBA;
*ppDataOut = new int[image.width * image.height];
if (!*ppDataOut || !png_image_finish_read(&image, NULL, *ppDataOut, 0, NULL))
return -1;
pSrcInfo->Width = image.width;
pSrcInfo->Height = image.height;
return S_OK;
}
HRESULT Renderer::SaveTextureData(const char* szFilename, D3DXIMAGE_INFO* pSrcInfo, int* ppDataOut)
{
png_image image;
memset(&image, 0, sizeof(image));
image.width = pSrcInfo->Width;
image.height = pSrcInfo->Height;
image.version = PNG_IMAGE_VERSION;
image.format = PNG_FORMAT_RGB;
png_image_write_to_file(&image, szFilename, 0, ppDataOut, 0, NULL);
return S_OK;
}
HRESULT Renderer::SaveTextureDataToMemory(void* pOutput, int outputCapacity, int* outputLength, int width, int height, int* ppDataIn)
{
png_image image;
memset(&image, 0, sizeof(image));
image.width = width;
image.height = height;
image.version = PNG_IMAGE_VERSION;
image.format = PNG_FORMAT_RGB;
dataEnd = (BYTE*)pOutput + outputCapacity;
dataStart = (BYTE*)pOutput;
dataCurr = (BYTE*)pOutput;
png_image_write_to_stdio(&image, NULL, 0, ppDataIn, 0, NULL, user_write_data, user_flush_data);
*outputLength = (int)(dataCurr - dataStart);
return S_OK;
}
void Renderer::TextureGetStats()
{
// TODO: this is for a different platform? it's empty in Render_PC.lib but not Render.lib
}
ID3D11ShaderResourceView* Renderer::TextureGetTexture(int idx)
{
if ((unsigned int)idx <= 511)
{
if (m_textures[idx].allocated)
return m_textures[idx].view;
}
break;
case GL_TEXTURE_WRAP_T:
case 5:
texture.samplerParams &= ~2u;
if (value == 0) {
texture.samplerParams |= 2u;
}
break;
default:
break;
}
}
void Renderer::TextureDynamicUpdateStart() {}
void Renderer::TextureDynamicUpdateEnd() {}
void Renderer::TextureData(int width, int height, void *data, int level,
C4JRender::eTextureFormat format) {
Renderer::Context &context = this->getContext();
Texture &texture = m_textures[context.boundTextureIndex];
texture.textureFormat = format;
if (level == 0) {
D3D11_TEXTURE2D_DESC desc = {};
desc.Width = width;
desc.Height = height;
desc.MipLevels = texture.mipLevels;
desc.ArraySize = 1;
desc.Format = textureFormats[format];
desc.SampleDesc.Count = 1;
desc.Usage = D3D11_USAGE_DEFAULT;
desc.BindFlags = D3D11_BIND_SHADER_RESOURCE;
m_pDevice->CreateTexture2D(&desc, nullptr, &texture.texture);
m_pDevice->CreateShaderResourceView(texture.texture, nullptr,
&texture.view);
}
const UINT rowPitch = width * 4u;
const UINT depthPitch = width * height * 4u;
context.m_pDeviceContext->UpdateSubresource(texture.texture, level, nullptr,
data, rowPitch, depthPitch);
}
void Renderer::TextureDataUpdate(int xoffset, int yoffset, int width,
int height, void *data, int level) {
Renderer::Context &context = this->getContext();
Texture &texture = m_textures[context.boundTextureIndex];
D3D11_BOX box = {};
box.left = xoffset;
box.right = xoffset + width;
box.top = yoffset;
box.bottom = yoffset + height;
box.front = 0;
box.back = 1;
D3D11_TEXTURE2D_DESC desc = {};
texture.texture->GetDesc(&desc);
const UINT rowPitch = width * 4u;
const UINT depthPitch = width * height * 4u;
context.m_pDeviceContext->UpdateSubresource(texture.texture, level, &box,
data, rowPitch, depthPitch);
}
void Renderer::TextureFree(int idx) {
Texture &texture = m_textures[idx];
texture.texture->Release();
texture.view->Release();
texture.view = nullptr;
texture.allocated = false;
texture.texture = nullptr;
}
void Renderer::TextureGetStats() {}
ID3D11ShaderResourceView *Renderer::TextureGetTexture(int idx) {
if (idx < 0 || idx > 0x1FF) {
return nullptr;
}
const Texture &texture = m_textures[idx];
if (!texture.allocated) {
return nullptr;
}
return texture.view;
}
void Renderer::TextureBind(int idx) {
int textureIndex = idx;
if (textureIndex == -1) {
textureIndex = defaultTextureIndex;
}
Renderer::Context &context = this->getContext();
if (context.commandBuffer && context.commandBuffer->isActive) {
context.commandBuffer->BindTexture(textureIndex);
}
context.boundTextureIndex = textureIndex;
ID3D11ShaderResourceView *const view = m_textures[textureIndex].view;
context.m_pDeviceContext->PSSetShaderResources(0, 1, &view);
this->UpdateTextureState(false);
}
void Renderer::TextureBindVertex(int idx) {
int textureIndex = idx;
if (textureIndex == -1) {
textureIndex = defaultTextureIndex;
}
Renderer::Context &context = this->getContext();
context.boundTextureIndex = textureIndex;
ID3D11ShaderResourceView *const view = m_textures[textureIndex].view;
context.m_pDeviceContext->VSSetShaderResources(0, 1, &view);
this->UpdateTextureState(true);
}
void Renderer::UpdateTextureState(bool vertexSampler) {
Renderer::Context &context = this->getContext();
ID3D11SamplerState *sampler = this->GetManagedSamplerState();
if (vertexSampler) {
context.m_pDeviceContext->VSSetSamplers(0, 1, &sampler);
} else {
context.m_pDeviceContext->PSSetSamplers(0, 1, &sampler);
}
}
HRESULT Renderer::LoadTextureData(const char *szFilename,
D3DXIMAGE_INFO *pSrcInfo, int **ppDataOut) {
if (!szFilename || !pSrcInfo || !ppDataOut) {
return -1;
}
*ppDataOut = nullptr;
png_image image;
std::memset(&image, 0, sizeof(image));
image.version = PNG_IMAGE_VERSION;
if (!png_image_begin_read_from_file(&image, szFilename)) {
return -1;
}
if (image.width == 0 || image.height == 0) {
png_image_free(&image);
return -1;
}
image.format = PNG_FORMAT_RGBA;
const png_alloc_size_t pixelCount =
png_alloc_size_t(image.width) * png_alloc_size_t(image.height);
if (pixelCount == 0 ||
pixelCount > (std::numeric_limits<size_t>::max)() / sizeof(int)) {
png_image_free(&image);
return -1;
}
int *output = new (std::nothrow) int[size_t(pixelCount)];
if (!output) {
png_image_free(&image);
return -1;
}
if (!png_image_finish_read(&image, nullptr, output, 0, nullptr)) {
delete[] output;
png_image_free(&image);
return -1;
}
*ppDataOut = output;
pSrcInfo->Width = image.width;
pSrcInfo->Height = image.height;
png_image_free(&image);
return 0;
}
HRESULT Renderer::LoadTextureData(BYTE *pbData, DWORD dwBytes,
D3DXIMAGE_INFO *pSrcInfo, int **ppDataOut) {
if (!pbData || dwBytes == 0 || !pSrcInfo || !ppDataOut) {
return -1;
}
*ppDataOut = nullptr;
png_image image;
std::memset(&image, 0, sizeof(image));
image.version = PNG_IMAGE_VERSION;
if (!png_image_begin_read_from_memory(&image, pbData, dwBytes)) {
return -1;
}
if (image.width == 0 || image.height == 0) {
png_image_free(&image);
return -1;
}
image.format = PNG_FORMAT_RGBA;
const png_alloc_size_t pixelCount =
png_alloc_size_t(image.width) * png_alloc_size_t(image.height);
if (pixelCount == 0 ||
pixelCount > (std::numeric_limits<size_t>::max)() / sizeof(int)) {
png_image_free(&image);
return -1;
}
int *output = new (std::nothrow) int[size_t(pixelCount)];
if (!output) {
png_image_free(&image);
return -1;
}
if (!png_image_finish_read(&image, nullptr, output, 0, nullptr)) {
delete[] output;
png_image_free(&image);
return -1;
}
*ppDataOut = output;
pSrcInfo->Width = image.width;
pSrcInfo->Height = image.height;
png_image_free(&image);
return 0;
}
HRESULT Renderer::SaveTextureData(const char *szFilename,
D3DXIMAGE_INFO *pSrcInfo, int *ppDataOut) {
png_image image = {};
image.version = PNG_IMAGE_VERSION;
image.width = pSrcInfo->Width;
image.height = pSrcInfo->Height;
image.format = PNG_FORMAT_RGBA;
png_image_write_to_file(&image, szFilename, 0, ppDataOut, 0, nullptr);
return 0;
}
HRESULT Renderer::SaveTextureDataToMemory(void *pOutput, int outputCapacity,
int *outputLength, int width,
int height, int *ppDataIn) {
if (!pOutput || outputCapacity <= 0 || !outputLength || width <= 0 ||
height <= 0 || !ppDataIn) {
return -1;
}
png_image image;
std::memset(&image, 0, sizeof(image));
image.version = PNG_IMAGE_VERSION;
image.width = width;
image.height = height;
image.format = PNG_FORMAT_RGBA;
png_alloc_size_t memoryBytes = static_cast<png_alloc_size_t>(outputCapacity);
if (!png_image_write_to_memory(&image, pOutput, &memoryBytes, 0, ppDataIn, 0,
nullptr)) {
*outputLength = 0;
png_image_free(&image);
return -1;
}
*outputLength = static_cast<int>(memoryBytes);
png_image_free(&image);
return 0;
}
return NULL;
}