276 lines
6.6 KiB
C++
276 lines
6.6 KiB
C++
// Copyright (C) 2003 Dolphin Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official SVN repository and contact information can be found at
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// http://code.google.com/p/dolphin-emu/
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#include "DX9_D3DBase.h"
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#include "DX9_D3DTexture.h"
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namespace DX9
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{
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namespace D3D
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{
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LPDIRECT3DTEXTURE9 CreateTexture2D(const u8* buffer, const int width, const int height, const int pitch, D3DFORMAT fmt, bool swap_r_b, int levels)
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{
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u32* pBuffer = (u32*)buffer;
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LPDIRECT3DTEXTURE9 pTexture;
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// crazy bitmagic, sorry :)
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bool isPow2 = !((width&(width-1)) || (height&(height-1)));
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bool bExpand = false;
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if (fmt == D3DFMT_A8P8) {
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fmt = D3DFMT_A8L8;
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bExpand = true;
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}
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HRESULT hr;
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// TODO(ector): Allow mipmaps for non-pow textures on newer cards?
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// TODO(ector): Use the game-specified mipmaps?
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if (levels > 0)
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hr = dev->CreateTexture(width, height, levels, 0, fmt, D3DPOOL_MANAGED, &pTexture, NULL);
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else
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hr = dev->CreateTexture(width, height, 0, D3DUSAGE_AUTOGENMIPMAP, fmt, D3DPOOL_MANAGED, &pTexture, NULL);
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if (FAILED(hr))
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return 0;
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int level = 0;
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D3DLOCKED_RECT Lock;
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pTexture->LockRect(level, &Lock, NULL, 0);
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switch (fmt)
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{
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case D3DFMT_L8:
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case D3DFMT_A8:
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case D3DFMT_A4L4:
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{
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const u8 *pIn = buffer;
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for (int y = 0; y < height; y++)
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{
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u8* pBits = ((u8*)Lock.pBits + (y * Lock.Pitch));
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memcpy(pBits, pIn, width);
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pIn += pitch;
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}
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}
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break;
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case D3DFMT_R5G6B5:
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{
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const u16 *pIn = (u16*)buffer;
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for (int y = 0; y < height; y++)
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{
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u16* pBits = (u16*)((u8*)Lock.pBits + (y * Lock.Pitch));
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memcpy(pBits, pIn, width * 2);
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pIn += pitch;
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}
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}
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break;
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case D3DFMT_A8L8:
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{
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if (bExpand) { // I8
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const u8 *pIn = buffer;
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// TODO(XK): Find a better way that does not involve either unpacking
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// or downsampling (i.e. A4L4)
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for (int y = 0; y < height; y++)
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{
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u8* pBits = ((u8*)Lock.pBits + (y * Lock.Pitch));
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for(int i = 0; i < width * 2; i += 2) {
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pBits[i] = pIn[i / 2];
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pBits[i + 1] = pIn[i / 2];
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}
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pIn += pitch;
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}
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} else { // IA8
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const u16 *pIn = (u16*)buffer;
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for (int y = 0; y < height; y++)
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{
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u16* pBits = (u16*)((u8*)Lock.pBits + (y * Lock.Pitch));
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memcpy(pBits, pIn, width * 2);
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pIn += pitch;
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}
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}
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}
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break;
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case D3DFMT_A8R8G8B8:
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{
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if(pitch * 4 == Lock.Pitch && !swap_r_b)
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{
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memcpy(Lock.pBits,buffer,Lock.Pitch*height);
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}
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else
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{
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u32* pIn = pBuffer;
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if (!swap_r_b) {
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for (int y = 0; y < height; y++)
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{
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u32 *pBits = (u32*)((u8*)Lock.pBits + (y * Lock.Pitch));
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memcpy(pBits, pIn, width * 4);
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pIn += pitch;
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}
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} else {
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for (int y = 0; y < height; y++)
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{
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u8 *pIn8 = (u8 *)pIn;
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u8 *pBits = (u8 *)((u8*)Lock.pBits + (y * Lock.Pitch));
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for (int x = 0; x < width * 4; x += 4) {
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pBits[x + 0] = pIn8[x + 2];
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pBits[x + 1] = pIn8[x + 1];
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pBits[x + 2] = pIn8[x + 0];
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pBits[x + 3] = pIn8[x + 3];
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}
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pIn += pitch;
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}
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}
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}
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}
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break;
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case D3DFMT_DXT1:
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memcpy(Lock.pBits,buffer,((width+3)/4)*((height+3)/4)*8);
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break;
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default:
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PanicAlert("D3D: Invalid texture format %i", fmt);
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}
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pTexture->UnlockRect(level);
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return pTexture;
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}
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LPDIRECT3DTEXTURE9 CreateOnlyTexture2D(const int width, const int height, D3DFORMAT fmt)
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{
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LPDIRECT3DTEXTURE9 pTexture;
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// crazy bitmagic, sorry :)
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bool isPow2 = !((width&(width-1)) || (height&(height-1)));
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bool bExpand = false;
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HRESULT hr;
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// TODO(ector): Allow mipmaps for non-pow textures on newer cards?
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// TODO(ector): Use the game-specified mipmaps?
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if (!isPow2)
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hr = dev->CreateTexture(width, height, 1, 0, fmt, D3DPOOL_MANAGED, &pTexture, NULL);
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else
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hr = dev->CreateTexture(width, height, 0, D3DUSAGE_AUTOGENMIPMAP, fmt, D3DPOOL_MANAGED, &pTexture, NULL);
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if (FAILED(hr))
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return 0;
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return pTexture;
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}
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void ReplaceTexture2D(LPDIRECT3DTEXTURE9 pTexture, const u8* buffer, const int width, const int height, const int pitch, D3DFORMAT fmt, bool swap_r_b, int level)
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{
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u32* pBuffer = (u32*)buffer;
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D3DLOCKED_RECT Lock;
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pTexture->LockRect(level, &Lock, NULL, 0);
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u32* pIn = pBuffer;
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bool bExpand = false;
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if (fmt == D3DFMT_A8P8) {
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fmt = D3DFMT_A8L8;
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bExpand = true;
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}
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switch (fmt)
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{
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case D3DFMT_A8R8G8B8:
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if(pitch * 4 == Lock.Pitch && !swap_r_b)
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{
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memcpy(Lock.pBits, pBuffer, Lock.Pitch*height);
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}
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else if (!swap_r_b)
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{
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for (int y = 0; y < height; y++)
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{
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u32 *pBits = (u32*)((u8*)Lock.pBits + (y * Lock.Pitch));
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memcpy(pBits, pIn, width * 4);
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pIn += pitch;
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}
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}
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else
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{
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for (int y = 0; y < height; y++)
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{
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u8 *pIn8 = (u8 *)pIn;
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u8 *pBits = (u8 *)((u8*)Lock.pBits + (y * Lock.Pitch));
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for (int x = 0; x < width * 4; x += 4)
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{
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pBits[x + 0] = pIn8[x + 2];
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pBits[x + 1] = pIn8[x + 1];
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pBits[x + 2] = pIn8[x + 0];
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pBits[x + 3] = pIn8[x + 3];
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}
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pIn += pitch;
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}
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}
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break;
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case D3DFMT_L8:
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case D3DFMT_A8:
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case D3DFMT_A4L4:
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{
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const u8 *pIn = buffer;
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for (int y = 0; y < height; y++)
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{
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u8* pBits = ((u8*)Lock.pBits + (y * Lock.Pitch));
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memcpy(pBits, pIn, width);
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pIn += pitch;
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}
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}
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break;
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case D3DFMT_R5G6B5:
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{
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const u16 *pIn = (u16*)buffer;
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for (int y = 0; y < height; y++)
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{
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u16* pBits = (u16*)((u8*)Lock.pBits + (y * Lock.Pitch));
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memcpy(pBits, pIn, width * 2);
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pIn += pitch;
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}
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}
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break;
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case D3DFMT_A8L8:
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{
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if (bExpand) { // I8
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const u8 *pIn = buffer;
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// TODO(XK): Find a better way that does not involve either unpacking
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// or downsampling (i.e. A4L4)
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for (int y = 0; y < height; y++)
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{
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u8* pBits = ((u8*)Lock.pBits + (y * Lock.Pitch));
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for(int i = 0; i < width * 2; i += 2) {
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pBits[i] = pIn[i / 2];
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pBits[i + 1] = pIn[i / 2];
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}
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pIn += pitch;
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}
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} else { // IA8
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const u16 *pIn = (u16*)buffer;
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for (int y = 0; y < height; y++)
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{
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u16* pBits = (u16*)((u8*)Lock.pBits + (y * Lock.Pitch));
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memcpy(pBits, pIn, width * 2);
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pIn += pitch;
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}
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}
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}
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break;
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case D3DFMT_DXT1:
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memcpy(Lock.pBits,buffer,((width+3)/4)*((height+3)/4)*8);
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break;
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}
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pTexture->UnlockRect(level);
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}
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} // namespace
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}
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