From e33e19d0587146859d48a134ec9fd94e7b7ba5cd Mon Sep 17 00:00:00 2001 From: "FWoltermann@gmail.com" Date: Thu, 8 Dec 2011 14:53:40 +0000 Subject: Initial upload --- nGenEx/TexDX9.cpp | 418 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 418 insertions(+) create mode 100644 nGenEx/TexDX9.cpp (limited to 'nGenEx/TexDX9.cpp') diff --git a/nGenEx/TexDX9.cpp b/nGenEx/TexDX9.cpp new file mode 100644 index 0000000..de182e1 --- /dev/null +++ b/nGenEx/TexDX9.cpp @@ -0,0 +1,418 @@ +/* Project nGenEx + Destroyer Studios LLC + Copyright © 1997-2004. All Rights Reserved. + + SUBSYSTEM: nGenEx.lib + FILE: TexDX9.cpp + AUTHOR: John DiCamillo + + + OVERVIEW + ======== + Direct3D Texture Cache +*/ + +#include "MemDebug.h" +#include "TexDX9.h" +#include "VideoDX9.h" +#include "Bitmap.h" +#include "Color.h" + +// +--------------------------------------------------------------------+ + +void Print(const char* fmt, ...); +void VideoDX9Error(const char* msg, HRESULT err); + +#define TEXDX9_VERBOSE 0 +#define DX9_TEXTURE_CACHE_SIZE 256 + +#ifndef RELEASE +#define RELEASE(x) if (x) { x->Release(); x=NULL; } +#endif + +// +--------------------------------------------------------------------+ + +void +TexCacheDX9Entry::Release() +{ + RELEASE(texture); +} + +// +--------------------------------------------------------------------+ + +void +TexCacheDX9Entry::Unload() +{ + RELEASE(texture); + bitmap_id = 0; + used_last = 0; + last_modified = 0; +} + +// +--------------------------------------------------------------------+ + +TexCacheDX9::TexCacheDX9(VideoDX9* v) + : video(v), count(0), mru(0) +{ + d3d = video->Direct3D(); + d3ddevice = video->D3DDevice(); + + // clear the texture cache + cache = new(__FILE__,__LINE__) TexCacheDX9Entry[DX9_TEXTURE_CACHE_SIZE]; + vidmem = video->VidMemFree(); +} + +TexCacheDX9::~TexCacheDX9() +{ + int used = 0; + + if (cache) { + for (int i = 0; i < DX9_TEXTURE_CACHE_SIZE; i++) { + if (cache[i].bitmap_id) + used++; + cache[i].Unload(); + } + + delete [] cache; + cache = 0; + } + + Print("TexCacheDX9: final used count = %d\n", used); +} + +// +--------------------------------------------------------------------+ + +bool +TexCacheDX9::LoadTexture(Bitmap* bmp, TexCacheDX9Entry* entry) +{ + if (!d3ddevice) return false; + + HRESULT hr = D3D_OK; + + // create the texture, if necessary + if (!entry->texture || entry->bitmap_id != bmp->Handle()) { + hr = d3ddevice->CreateTexture(bmp->Width(), + bmp->Height(), + 1, // one mip level + 0, // no specific usage + D3DFMT_A8R8G8B8, // format matching Color::rgba + D3DPOOL_MANAGED, + &entry->texture, + 0); + + if (FAILED(hr) || !entry->texture) { + VideoDX9Error("LoadTexture - could not create texture", hr); + return false; + } + } + + // lock the surface for writing + D3DLOCKED_RECT locked_rect; + hr = entry->texture->LockRect(0, &locked_rect, 0, 0); + + if (FAILED(hr)) { + VideoDX9Error("LoadTexture - could not lock texture surface", hr); + entry->Unload(); + 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 + entry->texture->UnlockRect(0); + + entry->last_modified = bmp->LastModified(); + vidmem = video->VidMemFree(); + return true; +} + +// +--------------------------------------------------------------------+ + +void +TexCacheDX9::CreateNormalMap(int index, float amp) +{ + if (d3ddevice && cache[index].texture && !cache[index].normal) { + HRESULT hr = D3D_OK; + TexCacheDX9Entry* entry = &cache[index]; + Bitmap* bmp = Bitmap::GetBitmapByID(entry->bitmap_id); + + IDirect3DTexture9* normal_map = 0; + + // create the normal map texture + hr = d3ddevice->CreateTexture(bmp->Width(), + bmp->Height(), + 1, // one mip levels + 0, // no specific usage + D3DFMT_A8R8G8B8, // format matching Color::rgba + D3DPOOL_MANAGED, + &normal_map, + 0); + + if (FAILED(hr) || !normal_map) { + VideoDX9Error("CreateNormalMap - could not create texture", hr); + return; + } + + D3DXComputeNormalMap(normal_map, entry->texture ,NULL, 0, D3DX_CHANNEL_RED, amp); + + entry->texture->Release(); + entry->texture = normal_map; + entry->normal = true; + + // The D3DX function destroys the alpha channel data + // when it builds the normal map. We want the original + // height data stored in the alpha channel, so we need + // to add it back in now. + + // lock the surface for writing + D3DLOCKED_RECT locked_rect; + hr = normal_map->LockRect(0, &locked_rect, 0, 0); + + if (FAILED(hr)) { + VideoDX9Error("CreateNormalMap - could not insert height channel", hr); + return; + } + + // 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; + + src += 2; // red channel + dst += 3; // alpha channel + + for (int n = 0; n < bmp->Width(); n++) { + *dst = *src; + + dst += 4; + src += 4; + } + } + + // unlock the surface + normal_map->UnlockRect(0); + } +} + +// +--------------------------------------------------------------------+ + +IDirect3DTexture9* +TexCacheDX9::FindTexture(Bitmap* bmp) +{ + int avail = -1; + + if (!bmp) + return 0; + + // check most recently used: + if (cache[mru].bitmap_id == bmp->Handle()) { + cache[mru].used_last = frame_number; + + // need to refresh? + if (cache[mru].last_modified < bmp->LastModified()) { + LoadTexture(bmp, &cache[mru]); + cache[mru].normal = false; + } + + return cache[mru].texture; + } + + // find cache entry, or first free: + for (int i = 0; i < DX9_TEXTURE_CACHE_SIZE; i++) + if (cache[i].bitmap_id == bmp->Handle()) { + cache[i].used_last = frame_number; + mru = i; + + // need to refresh? + if (cache[mru].last_modified < bmp->LastModified()) { + LoadTexture(bmp, &cache[mru]); + cache[mru].normal = false; + } + + return cache[i].texture; + } + else if (avail < 0 && cache[i].bitmap_id == 0) + avail = i; + + // no free space + if (avail < 0) + if (FreeUpCache()) + return FindTexture(bmp); + else + return 0; + + TexCacheDX9Entry* entry = &cache[avail]; + entry->bitmap_id = bmp->Handle(); + entry->used_last = frame_number; + + if (LoadTexture(bmp, entry)) { +#if TEXDX9_VERBOSE + Print(" Tex %3d: id=%2d, size=%3d, type=%d, hTex=%3d, frame=%6d vmf=%8d\n", + avail, bmp->Handle(), bmp->Width(), bmp->Type(), + cache[avail].texture, cache[avail].used_last, vidmem); +#endif + mru = avail; + cache[mru].normal = false; + return entry->texture; + } + else { + // failed to load texture, + // erase cache entry: + entry->Unload(); + } + + return 0; +} + +// +--------------------------------------------------------------------+ + +IDirect3DTexture9* +TexCacheDX9::FindNormalMap(Bitmap* bmp, float amp) +{ + int avail = -1; + + if (!bmp) + return 0; + + // check most recently used: + if (cache[mru].bitmap_id == bmp->Handle()) { + cache[mru].used_last = frame_number; + + // need to refresh? + if (cache[mru].last_modified < bmp->LastModified()) { + LoadTexture(bmp, &cache[mru]); + cache[mru].normal = false; + } + + if (!cache[mru].normal) + CreateNormalMap(mru, amp); + + return cache[mru].texture; + } + + // find cache entry, or first free: + for (int i = 0; i < DX9_TEXTURE_CACHE_SIZE; i++) + if (cache[i].bitmap_id == bmp->Handle()) { + cache[i].used_last = frame_number; + mru = i; + + // need to refresh? + if (cache[i].last_modified < bmp->LastModified()) { + LoadTexture(bmp, &cache[mru]); + cache[i].normal = false; + } + + if (!cache[i].normal) + CreateNormalMap(i, amp); + + return cache[i].texture; + } + else if (avail < 0 && cache[i].bitmap_id == 0) + avail = i; + + // no free space + if (avail < 0) + if (FreeUpCache()) + return FindTexture(bmp); + else + return 0; + + TexCacheDX9Entry* entry = &cache[avail]; + entry->bitmap_id = bmp->Handle(); + entry->used_last = frame_number; + + if (LoadTexture(bmp, entry)) { +#if TEXDX9_VERBOSE + Print(" Tex %3d: id=%2d, size=%3d, type=%d, hTex=%3d, frame=%6d vmf=%8d\n", + avail, bmp->Handle(), bmp->Width(), bmp->Type(), + cache[avail].texture, cache[avail].used_last, vidmem); +#endif + mru = avail; + CreateNormalMap(mru, amp); + return entry->texture; + } + else { + // failed to load texture, + // erase cache entry: + entry->Unload(); + } + + return 0; +} + +// +--------------------------------------------------------------------+ + +int +TexCacheDX9::FreeLRU(int tries) +{ + int unloaded = 0; + + while (tries--) { + int oldest = -1; + DWORD old = frame_number; + + for (int i = 0; i < DX9_TEXTURE_CACHE_SIZE; i++) { + DWORD ul = cache[i].used_last; + + if (ul && ul < old && ul != frame_number) { + old = ul; + oldest = i; + } + } + + if (oldest >= 0) { + cache[oldest].Unload(); + unloaded++; + } + else + break; + } + + vidmem = video->VidMemFree(); + +#if TEXDX9_VERBOSE + Print(" FreeLRU() frame=%6d unloaded=%2d vmf=%8d\n", frame_number, unloaded, vidmem); +#endif + + return unloaded; +} + +// +--------------------------------------------------------------------+ + +int +TexCacheDX9::FreeUpCache() +{ + int unloaded = 0; + + for (int i = 0; i < DX9_TEXTURE_CACHE_SIZE; i++) { + if (cache[i].used_last && cache[i].used_last < frame_number) { + cache[i].Unload(); + unloaded++; + } + } + + vidmem = video->VidMemFree(); + + Print(" FreeUpCache() frame=%6d unloaded=%2d vmf=%8d\n", frame_number, unloaded, vidmem); + + return unloaded; +} + +// +--------------------------------------------------------------------+ + +void +TexCacheDX9::InvalidateCache() +{ + for (int i = 0; i < DX9_TEXTURE_CACHE_SIZE; i++) { + cache[i].Unload(); + cache[i].normal = false; + } + + vidmem = video->VidMemFree(); +} -- cgit v1.1