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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;
+}