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Diffstat (limited to 'Magic2/TexCubeDX9.cpp')
-rw-r--r-- | Magic2/TexCubeDX9.cpp | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/Magic2/TexCubeDX9.cpp b/Magic2/TexCubeDX9.cpp new file mode 100644 index 0000000..49bb607 --- /dev/null +++ b/Magic2/TexCubeDX9.cpp @@ -0,0 +1,144 @@ +/* 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; +} |