fteqw/engine/d3d/d3d8_image.c

#include "quakedef.h"
#include "winquake.h"
#ifdef D3D8QUAKE
#if !defined(HMONITOR_DECLARED) && (WINVER < 0x0500)
    #define HMONITOR_DECLARED
    DECLARE_HANDLE(HMONITOR);
#endif

#ifdef _XBOX
	#include <xtl.h>
	#define D3DLOCK_NOSYSLOCK 0
	#define D3DLOCK_DISCARD 0
#endif

#include <d3d8.h>
extern LPDIRECT3DDEVICE8 pD3DDev8;

void D3D8_DestroyTexture (texid_t tex)
{
	if (!tex)
		return;

	if (tex->ptr)
		IDirect3DTexture8_Release((IDirect3DTexture8*)tex->ptr);
	tex->ptr = NULL;
}

qboolean D3D8_LoadTextureMips(image_t *tex, const struct pendingtextureinfo *mips)
{
	qbyte *fte_restrict out, *fte_restrict in;
	int x, y, i;
	D3DLOCKED_RECT lock;
	D3DFORMAT fmt = D3DFMT_UNKNOWN;
	D3DSURFACE_DESC desc;
	IDirect3DTexture8 *dt;
	qboolean swap = false;
	unsigned int blockwidth, blockheight, blockbytes = 1;

	if (mips->type != PTI_2D)
		return false;	//fixme: cube and volumes should work

	switch(mips->encoding)
	{
	case PTI_RGB565:
		fmt = D3DFMT_R5G6B5;
		break;
	case PTI_RGBA4444://not supported on d3d9
		return false;
	case PTI_ARGB4444:
		fmt = D3DFMT_A4R4G4B4;
		break;
	case PTI_RGBA5551://not supported on d3d9
		return false;
	case PTI_ARGB1555:
		fmt = D3DFMT_A1R5G5B5;
		break;
	case PTI_RGBA8:
//		fmt = D3DFMT_A8B8G8R8;	//how do we check 
		fmt = D3DFMT_A8R8G8B8;
		swap = true;
		break;
	case PTI_RGBX8:
//		fmt = D3DFMT_X8B8G8R8;
		fmt = D3DFMT_X8R8G8B8;
		swap = true;
		break;
	case PTI_BGRA8:
		fmt = D3DFMT_A8R8G8B8;
		break;
	case PTI_BGRX8:
		fmt = D3DFMT_X8R8G8B8;
		break;

	//too lazy to support these for now
	case PTI_BC1_RGB:
	case PTI_BC1_RGBA:	//d3d doesn't distinguish between these
		fmt = D3DFMT_DXT1;
		break;
	case PTI_BC2_RGBA:
		fmt = D3DFMT_DXT3;
		break;
	case PTI_BC3_RGBA:
		fmt = D3DFMT_DXT5;
		break;

	case PTI_EMULATED:
	default:	//no idea
		break;
	}
	if (fmt == D3DFMT_UNKNOWN)
		return false;

	Image_BlockSizeForEncoding(mips->encoding, &blockbytes, &blockwidth, &blockheight);

	if (!pD3DDev8)
		return false;	//can happen on errors
	if (FAILED(IDirect3DDevice8_CreateTexture(pD3DDev8, mips->mip[0].width, mips->mip[0].height, mips->mipcount, 0, fmt, D3DPOOL_MANAGED, &dt)))
		return false;

	for (i = 0; i < mips->mipcount; i++)
	{
		IDirect3DTexture8_GetLevelDesc(dt, i, &desc);

		if (mips->mip[i].height != desc.Height || mips->mip[i].width != desc.Width)
		{
			IDirect3DTexture8_Release(dt);
			return false;
		}

		IDirect3DTexture8_LockRect(dt, i, &lock, NULL, D3DLOCK_NOSYSLOCK|D3DLOCK_DISCARD);
		//can't do it in one go. pitch might contain padding or be upside down.
		if (!mips->mip[i].data)
			;
		else if (swap)
		{
			size_t rowbytes = ((mips->mip[i].width+blockwidth-1)/blockwidth)*blockbytes;
			for (y = 0, out = lock.pBits, in = mips->mip[i].data; y < mips->mip[i].height; y++, out += lock.Pitch, in += rowbytes)
			{
				for (x = 0; x < rowbytes; x+=4)
				{
					out[x+0] = in[x+2];
					out[x+1] = in[x+1];
					out[x+2] = in[x+0];
					out[x+3] = in[x+3];
				}
			}
		}
		else
		{
			size_t rowbytes = ((mips->mip[i].width+blockwidth-1)/blockwidth)*blockbytes;
			for (y = 0, out = lock.pBits, in = mips->mip[i].data; y < mips->mip[i].height; y+=blockheight, out += lock.Pitch, in += rowbytes)
				memcpy(out, in, rowbytes);
		}
		IDirect3DTexture8_UnlockRect(dt, i);
	}

	D3D8_DestroyTexture(tex);
	tex->ptr = dt;

	return true;
}
void D3D8_UploadLightmap(lightmapinfo_t *lm)
{
}

#endif