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/* Starshatter OpenSource Distribution
Copyright (c) 1997-2004, Destroyer Studios LLC.
All Rights Reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
* Neither the name "Destroyer Studios" nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
SUBSYSTEM: nGenEx.lib
FILE: TexDX9.cpp
AUTHOR: John DiCamillo
OVERVIEW
========
Direct3D Texture Cache
*/
#include "MemDebug.h"
#include "TexCubeDX9.h"
#include "VideoDX9.h"
#include "Bitmap.h"
#include "Color.h"
// +--------------------------------------------------------------------+
void Print(const char* fmt, ...);
void VideoDX9Error(const char* msg, HRESULT err);
#ifndef RELEASE
#define RELEASE(x) if (x) { x->Release(); x=NULL; }
#endif
// +--------------------------------------------------------------------+
TexCubeDX9::TexCubeDX9(VideoDX9* v)
: video(v), texture(0)
{
d3d = video->Direct3D();
d3ddevice = video->D3DDevice();
for (int i = 0; i < 6; i++) {
faces[i] = 0;
last_modified[i] = 0;
}
}
TexCubeDX9::~TexCubeDX9()
{
RELEASE(texture);
}
// +--------------------------------------------------------------------+
bool
TexCubeDX9::LoadTexture(Bitmap* bmp, int face_index)
{
if (!d3ddevice) return false;
if (faces[face_index] == bmp && last_modified[face_index] >= bmp->LastModified())
return true; // already loaded and hasn't been modified
HRESULT hr = D3D_OK;
// create the texture, if necessary
if (!texture) {
hr = d3ddevice->CreateCubeTexture(bmp->Width(),
1, // one mip level
0, // no specific usage
D3DFMT_A8R8G8B8, // format matching Color::rgba
D3DPOOL_MANAGED,
&texture,
0);
if (FAILED(hr) || !texture) {
VideoDX9Error("LoadTexture - could not create cube texture", hr);
return false;
}
}
// lock the surface for writing
D3DLOCKED_RECT locked_rect;
D3DCUBEMAP_FACES face = (D3DCUBEMAP_FACES) face_index;
hr = texture->LockRect(face, 0, &locked_rect, 0, 0);
if (FAILED(hr)) {
VideoDX9Error("LoadTexture - could not lock texture surface", hr);
RELEASE(texture);
return false;
}
// load the bitmap into the texture surface
for (int i = 0; i < bmp->Height(); i++) {
BYTE* src = (BYTE*) (bmp->HiPixels() + i * bmp->Width());
BYTE* dst = (BYTE*) locked_rect.pBits + i * locked_rect.Pitch;
CopyMemory(dst, src, bmp->Width() * sizeof(Color));
}
// unlock the surface
texture->UnlockRect(face, 0);
faces[face_index] = bmp;
last_modified[face_index] = bmp->LastModified();
return true;
}
// +--------------------------------------------------------------------+
IDirect3DCubeTexture9*
TexCubeDX9::GetTexture()
{
if (texture) {
// need to refresh anything?
for (int i = 0; i < 6; i++) {
if (faces[i] && last_modified[i] < faces[i]->LastModified()) {
LoadTexture(faces[i], i);
}
}
}
return texture;
}
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