mirror of
https://github.com/yquake2/yquake2remaster.git
synced 2024-11-10 07:12:07 +00:00
Add code for retore mips
This commit is contained in:
parent
203bc4b202
commit
1dfb54bf38
2 changed files with 89 additions and 67 deletions
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@ -124,6 +124,44 @@ R_ImageShrink(const unsigned char* src, unsigned char *dst, int width, int realw
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}
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}
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static void
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R_RestoreMips(image_t *image, int min_mips)
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{
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int i;
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for (i=min_mips+1; i<NUM_MIPS; i++)
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{
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R_ImageShrink(image->pixels[i-1], image->pixels[i],
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image->height / (1 << (i - 1)), image->height / (1 << i),
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image->width / (1 << (i - 1)), image->width / (1 << i));
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}
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}
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static size_t
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R_GetImageMipsSize(size_t mip1_size)
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{
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size_t full_size = 0;
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int i;
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for (i=0; i<NUM_MIPS; i++)
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{
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full_size += mip1_size >> (i * 2);
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}
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return full_size;
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}
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static void
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R_RestoreImagePointers(image_t *image, int min_mips)
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{
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int i;
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for (i=min_mips+1; i<NUM_MIPS; i++)
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{
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image->pixels[i] = image->pixels[i - 1] + (
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image->width * image->height / (1 << ((i - 1) * 2)));
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}
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}
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/*
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================
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R_LoadPic
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@ -147,7 +185,7 @@ R_LoadPic (char *name, byte *pic, int width, int height, imagetype_t type)
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image->type = type;
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size = width * height;
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full_size = size * (256+64+16+4)/256;
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full_size = R_GetImageMipsSize(size);
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image->pixels[0] = malloc(full_size);
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image->transparent = false;
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for (i=0 ; i<size ; i++)
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@ -161,19 +199,9 @@ R_LoadPic (char *name, byte *pic, int width, int height, imagetype_t type)
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memcpy(image->pixels[0], pic, size);
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// restore mips
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image->pixels[1] = image->pixels[0] + image->width*image->height;
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image->pixels[2] = image->pixels[1] + image->width*image->height/4;
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image->pixels[3] = image->pixels[2] + image->width*image->height/16;
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R_RestoreImagePointers(image, 0);
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// restore everything from first image
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R_ImageShrink(image->pixels[0], image->pixels[1],
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image->height, image->height/2,
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image->width, image->width/2);
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R_ImageShrink(image->pixels[1], image->pixels[2],
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image->height/2, image->height/4,
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image->width/2, image->width/4);
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R_ImageShrink(image->pixels[2], image->pixels[3],
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image->height/4, image->height/8,
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image->width/4, image->width/8);
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R_RestoreMips(image, 0);
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return image;
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}
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@ -188,7 +216,7 @@ R_LoadWal (char *name, imagetype_t type)
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miptex_t *mt;
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int ofs;
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image_t *image;
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int size, file_size;
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size_t size, file_size;
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file_size = ri.FS_LoadFile (name, (void **)&mt);
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if (!mt)
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@ -211,7 +239,7 @@ R_LoadWal (char *name, imagetype_t type)
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image->type = type;
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image->registration_sequence = registration_sequence;
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ofs = LittleLong(mt->offsets[0]);
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size = image->width * image->height * (256+64+16+4)/256;
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size = R_GetImageMipsSize(image->width * image->height);
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if ((ofs <= 0) || (image->width <= 0) || (image->height <= 0) ||
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((file_size - ofs) / image->width < image->height))
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@ -222,23 +250,13 @@ R_LoadWal (char *name, imagetype_t type)
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}
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image->pixels[0] = malloc (size);
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image->pixels[1] = image->pixels[0] + image->width*image->height;
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image->pixels[2] = image->pixels[1] + image->width*image->height/4;
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image->pixels[3] = image->pixels[2] + image->width*image->height/16;
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R_RestoreImagePointers(image, 0);
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if (size > (file_size - ofs))
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{
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memcpy(image->pixels[0], (byte *)mt + ofs, file_size - ofs);
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// looks short, restore everything from first image
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R_ImageShrink(image->pixels[0], image->pixels[1],
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image->height, image->height/2,
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image->width, image->width/2);
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R_ImageShrink(image->pixels[1], image->pixels[2],
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image->height/2, image->height/4,
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image->width/2, image->width/4);
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R_ImageShrink(image->pixels[2], image->pixels[3],
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image->height/4, image->height/8,
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image->width/4, image->width/8);
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R_RestoreMips(image, 0);
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}
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else
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{
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@ -301,7 +319,7 @@ R_LoadHiColorImage(char *name, const char* namewe, const char *ext, imagetype_t
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if (width >= realwidth && height >= realheight)
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{
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byte* pic8 = NULL;
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int size;
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size_t size;
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if (realheight == 0 || realwidth == 0)
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{
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@ -309,7 +327,7 @@ R_LoadHiColorImage(char *name, const char* namewe, const char *ext, imagetype_t
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realwidth = width;
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}
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size = width * height * (256+64+16+4)/256;
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size = R_GetImageMipsSize(width * height);
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pic8 = malloc(size);
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R_Convert32To8bit(pic, pic8, width * height);
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if (width != realwidth || height != realheight)
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@ -461,6 +479,46 @@ R_FreeUnusedImages (void)
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}
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}
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static struct texture_buffer {
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image_t image;
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byte buffer[4096];
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} r_notexture_buffer;
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/*
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==================
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R_InitTextures
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==================
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*/
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static void
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R_InitTextures (void)
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{
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int x,y, m;
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// create a simple checkerboard texture for the default
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r_notexture_mip = &r_notexture_buffer.image;
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r_notexture_mip->width = r_notexture_mip->height = 16;
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r_notexture_mip->pixels[0] = r_notexture_buffer.buffer;
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R_RestoreImagePointers(r_notexture_mip, 0);
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for (m=0 ; m<NUM_MIPS ; m++)
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{
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byte *dest;
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dest = r_notexture_mip->pixels[m];
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for (y=0 ; y< (16>>m) ; y++)
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for (x=0 ; x< (16>>m) ; x++)
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{
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if ( (y< (8>>m) ) ^ (x< (8>>m) ) )
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*dest++ = 0;
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else
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*dest++ = 0xff;
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}
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}
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}
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/*
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===============
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R_InitImages
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@ -482,6 +540,8 @@ R_InitImages (void)
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d_16to8table = malloc(0x10000);
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memcpy(d_16to8table, table16to8, 0x10000);
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ri.FS_FreeFile((void *)table16to8);
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R_InitTextures ();
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}
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/*
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@ -201,43 +201,6 @@ static void Draw_BuildGammaTable(void);
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static void RE_EndFrame(void);
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static void R_DrawBeam(const entity_t *e);
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/*
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==================
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R_InitTextures
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==================
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*/
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static void
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R_InitTextures (void)
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{
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int x,y, m;
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// create a simple checkerboard texture for the default
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r_notexture_mip = &r_notexture_buffer.image;
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r_notexture_mip->width = r_notexture_mip->height = 16;
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r_notexture_mip->pixels[0] = r_notexture_buffer.buffer;
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r_notexture_mip->pixels[1] = r_notexture_mip->pixels[0] + 16*16;
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r_notexture_mip->pixels[2] = r_notexture_mip->pixels[1] + 8*8;
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r_notexture_mip->pixels[3] = r_notexture_mip->pixels[2] + 4*4;
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for (m=0 ; m<4 ; m++)
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{
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byte *dest;
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dest = r_notexture_mip->pixels[m];
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for (y=0 ; y< (16>>m) ; y++)
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for (x=0 ; x< (16>>m) ; x++)
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{
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if ( (y< (8>>m) ) ^ (x< (8>>m) ) )
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*dest++ = 0;
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else
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*dest++ = 0xff;
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}
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}
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}
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/*
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================
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R_InitTurb
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@ -332,7 +295,6 @@ RE_Init(void)
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R_InitImages ();
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Mod_Init ();
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Draw_InitLocal ();
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R_InitTextures ();
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view_clipplanes[0].leftedge = true;
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view_clipplanes[1].rightedge = true;
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