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/* Project nGenEx
Destroyer Studios LLC
Copyright © 1997-2004. All Rights Reserved.
SUBSYSTEM: nGenEx.lib
FILE: D3DXImage.cpp
AUTHOR: John DiCamillo
OVERVIEW
========
D3DX image file loader
*/
#include "MemDebug.h"
#include "D3DXImage.h"
#include "VideoDX9.h"
// +--------------------------------------------------------------------+
D3DXImage::D3DXImage()
: width(0), height(0), format(0), image(0)
{ }
D3DXImage::D3DXImage(WORD w, WORD h, DWORD* img)
{
ZeroMemory(this, sizeof(D3DXImage));
width = w;
height = h;
int pixels = width * height;
image = new(__FILE__,__LINE__) DWORD [pixels];
if (image && pixels) {
for (int i = 0; i < pixels; i++)
image[i] = img[i];
}
}
D3DXImage::~D3DXImage()
{
delete [] image;
}
// +--------------------------------------------------------------------+
bool D3DXImage::Load(char *filename)
{
bool success = false;
FILE* f;
fopen_s(&f, filename,"rb");
if (f == NULL)
return success;
int len = 0;
BYTE* buf = 0;
fseek(f, 0, SEEK_END);
len = ftell(f);
fseek(f, 0, SEEK_SET);
buf = new(__FILE__,__LINE__) BYTE[len];
if (buf) {
fread(buf, len, 1, f);
fclose(f);
success = LoadBuffer(buf, len);
}
return success;
}
// +--------------------------------------------------------------------+
bool D3DXImage::LoadBuffer(BYTE* buf, int len)
{
bool success = false;
HRESULT hr = E_FAIL;
D3DXIMAGE_INFO info;
if (buf == NULL)
return success;
hr = D3DXGetImageInfoFromFileInMemory(buf, len, &info);
if (FAILED(hr))
return success;
width = info.Width;
height = info.Height;
format = info.Format;
if (image) {
delete [] image;
image = 0;
}
IDirect3DSurface9* surf = 0;
IDirect3DDevice9* dev = VideoDX9::GetD3DDevice9();
hr = dev->CreateOffscreenPlainSurface( width,
height,
D3DFMT_A8R8G8B8,
D3DPOOL_SYSTEMMEM,
&surf,
NULL);
if (FAILED(hr))
return success;
hr = D3DXLoadSurfaceFromFileInMemory( surf, // dest surface
NULL, // dest palette (none)
NULL, // dest rect (entire image)
buf, // memory file
len, // size of data
NULL, // source rect (entire image)
D3DX_DEFAULT, // filter operation
0, // color key (none)
NULL); // image info
if (SUCCEEDED(hr)) {
D3DLOCKED_RECT locked_rect;
hr = surf->LockRect(&locked_rect, NULL, D3DLOCK_READONLY);
if (SUCCEEDED(hr)) {
// copy surface into image
image = new(__FILE__,__LINE__) DWORD[width*height];
if (image) {
for (DWORD i = 0; i < height; i++) {
BYTE* dst = (BYTE*) (image + i * width);
BYTE* src = (BYTE*) locked_rect.pBits + i * locked_rect.Pitch;
CopyMemory(dst, src, width * sizeof(DWORD));
}
success = true;
}
surf->UnlockRect();
}
}
surf->Release();
surf = 0;
return success;
}
// +--------------------------------------------------------------------+
bool D3DXImage::Save(char *filename)
{
bool success = false;
HRESULT hr = E_FAIL;
if (!image || !width || !height)
return success;
FILE* f;
fopen_s(&f, filename,"wb");
if (f == NULL)
return success;
IDirect3DSurface9* surf = 0;
IDirect3DDevice9* dev = VideoDX9::GetD3DDevice9();
hr = dev->CreateOffscreenPlainSurface( width,
height,
D3DFMT_A8R8G8B8,
D3DPOOL_SYSTEMMEM,
&surf,
NULL);
if (SUCCEEDED(hr)) {
D3DLOCKED_RECT locked_rect;
hr = surf->LockRect(&locked_rect, NULL, 0);
if (SUCCEEDED(hr)) {
// copy image into surface
for (DWORD i = 0; i < height; i++) {
BYTE* src = (BYTE*) (image + i * width);
BYTE* dst = (BYTE*) locked_rect.pBits + i * locked_rect.Pitch;
CopyMemory(dst, src, width * sizeof(DWORD));
}
surf->UnlockRect();
ID3DXBuffer* buffer = 0;
D3DXIMAGE_FILEFORMAT imgfmt = D3DXIFF_PNG;
if (strstr(filename, ".jpg") || strstr(filename, ".JPG"))
imgfmt = D3DXIFF_JPG;
else if (strstr(filename, ".bmp") || strstr(filename, ".BMP"))
imgfmt = D3DXIFF_BMP;
hr = D3DXSaveSurfaceToFileInMemory(&buffer, // destination
imgfmt, // type of file
surf, // image to save
NULL, // palette
NULL); // source rect (entire image)
if (SUCCEEDED(hr)) {
fwrite(buffer->GetBufferPointer(), buffer->GetBufferSize(), 1, f);
success = true;
}
}
}
surf->Release();
surf = 0;
fclose(f);
return success;
}
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