//---------------------------------------------------------------------------
static void createPatch(int id) {
rpatch_t *patch;
const int patchNum = id;
const patch_t *oldPatch = (const patch_t*)W_CacheLumpNum(patchNum);
const column_t *oldColumn, *oldPrevColumn, *oldNextColumn;
int x, y;
int pixelDataSize;
int columnsDataSize;
int postsDataSize;
int dataSize;
int *numPostsInColumn;
int numPostsTotal;
const unsigned char *oldColumnPixelData;
int numPostsUsedSoFar;
int edgeSlope;
#ifdef RANGECHECK
if (id >= numlumps)
I_Error("createPatch: %i >= numlumps", id);
#endif
patch = &patches[id];
// proff - 2003-02-16 What about endianess?
patch->width = SHORT(oldPatch->width);
patch->widthmask = 0;
patch->height = SHORT(oldPatch->height);
patch->leftoffset = SHORT(oldPatch->leftoffset);
patch->topoffset = SHORT(oldPatch->topoffset);
patch->isNotTileable = getPatchIsNotTileable(oldPatch);
// work out how much memory we need to allocate for this patch's data
pixelDataSize = (patch->width * patch->height + 4) & ~3;
columnsDataSize = sizeof(rcolumn_t) * patch->width;
// count the number of posts in each column
numPostsInColumn = (int*)malloc(sizeof(int) * patch->width);
numPostsTotal = 0;
for (x=0; x<patch->width; x++) {
oldColumn = (const column_t *)((const byte *)oldPatch + LONG(oldPatch->columnofs[x]));
numPostsInColumn[x] = 0;
while (oldColumn->topdelta != 0xff) {
numPostsInColumn[x]++;
numPostsTotal++;
oldColumn = (const column_t *)((const byte *)oldColumn + oldColumn->length + 4);
}
}
postsDataSize = numPostsTotal * sizeof(rpost_t);
// allocate our data chunk
dataSize = pixelDataSize + columnsDataSize + postsDataSize;
patch->data = (unsigned char*)Z_Malloc(dataSize, PU_CACHE, (void **)&patch->data);
memset(patch->data, 0, dataSize);
// set out pixel, column, and post pointers into our data array
patch->pixels = patch->data;
patch->columns = (rcolumn_t*)((unsigned char*)patch->pixels + pixelDataSize);
patch->posts = (rpost_t*)((unsigned char*)patch->columns + columnsDataSize);
// sanity check that we've got all the memory allocated we need
assert((((byte*)patch->posts + numPostsTotal*sizeof(rpost_t)) - (byte*)patch->data) == dataSize);
memset(patch->pixels, 0xff, (patch->width*patch->height));
// fill in the pixels, posts, and columns
numPostsUsedSoFar = 0;
for (x=0; x<patch->width; x++) {
oldColumn = (const column_t *)((const byte *)oldPatch + LONG(oldPatch->columnofs[x]));
if (patch->isNotTileable) {
// non-tiling
if (x == 0) oldPrevColumn = 0;
else oldPrevColumn = (const column_t *)((const byte *)oldPatch + LONG(oldPatch->columnofs[x-1]));
if (x == patch->width-1) oldNextColumn = 0;
else oldNextColumn = (const column_t *)((const byte *)oldPatch + LONG(oldPatch->columnofs[x+1]));
}
else {
// tiling
int prevColumnIndex = x-1;
int nextColumnIndex = x+1;
while (prevColumnIndex < 0) prevColumnIndex += patch->width;
while (nextColumnIndex >= patch->width) nextColumnIndex -= patch->width;
oldPrevColumn = (const column_t *)((const byte *)oldPatch + LONG(oldPatch->columnofs[prevColumnIndex]));
oldNextColumn = (const column_t *)((const byte *)oldPatch + LONG(oldPatch->columnofs[nextColumnIndex]));
}
// setup the column's data
patch->columns[x].pixels = patch->pixels + (x*patch->height) + 0;
patch->columns[x].numPosts = numPostsInColumn[x];
patch->columns[x].posts = patch->posts + numPostsUsedSoFar;
while (oldColumn->topdelta != 0xff) {
// set up the post's data
patch->posts[numPostsUsedSoFar].topdelta = oldColumn->topdelta;
patch->posts[numPostsUsedSoFar].length = oldColumn->length;
patch->posts[numPostsUsedSoFar].slope = 0;
edgeSlope = getColumnEdgeSlope(oldPrevColumn, oldNextColumn, oldColumn->topdelta);
if (edgeSlope == 1) patch->posts[numPostsUsedSoFar].slope |= RDRAW_EDGESLOPE_TOP_UP;
else if (edgeSlope == -1) patch->posts[numPostsUsedSoFar].slope |= RDRAW_EDGESLOPE_TOP_DOWN;
edgeSlope = getColumnEdgeSlope(oldPrevColumn, oldNextColumn, oldColumn->topdelta+oldColumn->length);
if (edgeSlope == 1) patch->posts[numPostsUsedSoFar].slope |= RDRAW_EDGESLOPE_BOT_UP;
else if (edgeSlope == -1) patch->posts[numPostsUsedSoFar].slope |= RDRAW_EDGESLOPE_BOT_DOWN;
// fill in the post's pixels
oldColumnPixelData = (const byte *)oldColumn + 3;
for (y=0; y<oldColumn->length; y++) {
patch->pixels[x * patch->height + oldColumn->topdelta + y] = oldColumnPixelData[y];
}
oldColumn = (const column_t *)((const byte *)oldColumn + oldColumn->length + 4);
numPostsUsedSoFar++;
}
}
if (1 || patch->isNotTileable) {
const rcolumn_t *column, *prevColumn;
// copy the patch image down and to the right where there are
// holes to eliminate the black halo from bilinear filtering
for (x=0; x<patch->width; x++) {
//oldColumn = (const column_t *)((const byte *)oldPatch + oldPatch->columnofs[x]);
column = R_GetPatchColumnClamped(patch, x);
prevColumn = R_GetPatchColumnClamped(patch, x-1);
if (column->pixels[0] == 0xff) {
// force the first pixel (which is a hole), to use
// the color from the next solid spot in the column
for (y=0; y<patch->height; y++) {
if (column->pixels[y] != 0xff) {
column->pixels[0] = column->pixels[y];
break;
}
}
}
// copy from above or to the left
for (y=1; y<patch->height; y++) {
//if (getIsSolidAtSpot(oldColumn, y)) continue;
if (column->pixels[y] != 0xff) continue;
// this pixel is a hole
if (x && prevColumn->pixels[y-1] != 0xff) {
// copy the color from the left
column->pixels[y] = prevColumn->pixels[y];
}
else {
// copy the color from above
column->pixels[y] = column->pixels[y-1];
}
}
}
// verify that the patch truly is non-rectangular since
// this determines tiling later on
}
W_UnlockLumpNum(patchNum);
free(numPostsInColumn);
}
//---------------------------------------------------------------------------
static void createTextureCompositePatch(int id) {
rpatch_t *composite_patch;
texture_t *texture;
texpatch_t *texpatch;
int patchNum;
const patch_t *oldPatch;
const column_t *oldColumn, *oldPrevColumn, *oldNextColumn;
int i, x, y;
int oy, count;
int pixelDataSize;
int columnsDataSize;
int postsDataSize;
int dataSize;
int numPostsTotal;
const unsigned char *oldColumnPixelData;
int numPostsUsedSoFar;
int edgeSlope;
count_t *countsInColumn;
#ifdef RANGECHECK
if (id >= numtextures)
I_Error("createTextureCompositePatch: %i >= numtextures", id);
#endif
composite_patch = &texture_composites[id];
texture = textures[id];
composite_patch->width = texture->width;
composite_patch->height = texture->height;
composite_patch->widthmask = texture->widthmask;
composite_patch->leftoffset = 0;
composite_patch->topoffset = 0;
composite_patch->isNotTileable = 0;
// work out how much memory we need to allocate for this patch's data
pixelDataSize = (composite_patch->width * composite_patch->height + 4) & ~3;
columnsDataSize = sizeof(rcolumn_t) * composite_patch->width;
// count the number of posts in each column
countsInColumn = (count_t *)calloc(sizeof(count_t), composite_patch->width);
numPostsTotal = 0;
for (i=0; i<texture->patchcount; i++) {
texpatch = &texture->patches[i];
patchNum = texpatch->patch;
oldPatch = (const patch_t*)W_CacheLumpNum(patchNum);
for (x=0; x<SHORT(oldPatch->width); x++) {
int tx = texpatch->originx + x;
if (tx < 0)
continue;
if (tx >= composite_patch->width)
break;
countsInColumn[tx].patches++;
oldColumn = (const column_t *)((const byte *)oldPatch + LONG(oldPatch->columnofs[x]));
while (oldColumn->topdelta != 0xff) {
countsInColumn[tx].posts++;
numPostsTotal++;
oldColumn = (const column_t *)((const byte *)oldColumn + oldColumn->length + 4);
}
}
W_UnlockLumpNum(patchNum);
}
postsDataSize = numPostsTotal * sizeof(rpost_t);
// allocate our data chunk
dataSize = pixelDataSize + columnsDataSize + postsDataSize;
composite_patch->data = (unsigned char*)Z_Malloc(dataSize, PU_STATIC, (void **)&composite_patch->data);
memset(composite_patch->data, 0, dataSize);
// set out pixel, column, and post pointers into our data array
composite_patch->pixels = composite_patch->data;
composite_patch->columns = (rcolumn_t*)((unsigned char*)composite_patch->pixels + pixelDataSize);
composite_patch->posts = (rpost_t*)((unsigned char*)composite_patch->columns + columnsDataSize);
// sanity check that we've got all the memory allocated we need
assert((((byte*)composite_patch->posts + numPostsTotal*sizeof(rpost_t)) - (byte*)composite_patch->data) == dataSize);
memset(composite_patch->pixels, 0xff, (composite_patch->width*composite_patch->height));
numPostsUsedSoFar = 0;
for (x=0; x<texture->width; x++) {
// setup the column's data
composite_patch->columns[x].pixels = composite_patch->pixels + (x*composite_patch->height);
composite_patch->columns[x].numPosts = countsInColumn[x].posts;
composite_patch->columns[x].posts = composite_patch->posts + numPostsUsedSoFar;
numPostsUsedSoFar += countsInColumn[x].posts;
}
// fill in the pixels, posts, and columns
for (i=0; i<texture->patchcount; i++) {
texpatch = &texture->patches[i];
patchNum = texpatch->patch;
oldPatch = (const patch_t*)W_CacheLumpNum(patchNum);
for (x=0; x<SHORT(oldPatch->width); x++) {
int tx = texpatch->originx + x;
if (tx < 0)
continue;
if (tx >= composite_patch->width)
break;
oldColumn = (const column_t *)((const byte *)oldPatch + LONG(oldPatch->columnofs[x]));
{
// tiling
int prevColumnIndex = x-1;
int nextColumnIndex = x+1;
while (prevColumnIndex < 0) prevColumnIndex += SHORT(oldPatch->width);
while (nextColumnIndex >= SHORT(oldPatch->width)) nextColumnIndex -= SHORT(oldPatch->width);
oldPrevColumn = (const column_t *)((const byte *)oldPatch + LONG(oldPatch->columnofs[prevColumnIndex]));
oldNextColumn = (const column_t *)((const byte *)oldPatch + LONG(oldPatch->columnofs[nextColumnIndex]));
}
while (oldColumn->topdelta != 0xff) {
rpost_t *post = &composite_patch->columns[tx].posts[countsInColumn[tx].posts_used];
oldColumnPixelData = (const byte *)oldColumn + 3;
oy = texpatch->originy;
count = oldColumn->length;
// the original renderer had several bugs which we reproduce here
if (countsInColumn[tx].patches > 1) {
// when there are multiple patches, then we need to handle the
// column differently
if (i == 0) {
// draw first patch at original position, it will be partly
// overdrawn below
for (y=0; y<count; y++) {
int ty = oy + oldColumn->topdelta + y;
if (ty < 0)
continue;
if (ty >= composite_patch->height)
break;
composite_patch->pixels[tx * composite_patch->height + ty] = oldColumnPixelData[y];
}
}
// do the buggy clipping
if ((oy + oldColumn->topdelta) < 0) {
count += oy;
oy = 0;
}
} else {
// with a single patch only negative y origins are wrong
oy = 0;
}
// set up the post's data
post->topdelta = oldColumn->topdelta + oy;
post->length = count;
if ((post->topdelta + post->length) > composite_patch->height) {
if (post->topdelta > composite_patch->height)
post->length = 0;
else
post->length = composite_patch->height - post->topdelta;
}
if (post->topdelta < 0) {
if ((post->topdelta + post->length) <= 0)
post->length = 0;
else
post->length -= post->topdelta;
post->topdelta = 0;
}
post->slope = 0;
edgeSlope = getColumnEdgeSlope(oldPrevColumn, oldNextColumn, oldColumn->topdelta);
if (edgeSlope == 1) post->slope |= RDRAW_EDGESLOPE_TOP_UP;
else if (edgeSlope == -1) post->slope |= RDRAW_EDGESLOPE_TOP_DOWN;
edgeSlope = getColumnEdgeSlope(oldPrevColumn, oldNextColumn, oldColumn->topdelta+count);
if (edgeSlope == 1) post->slope |= RDRAW_EDGESLOPE_BOT_UP;
else if (edgeSlope == -1) post->slope |= RDRAW_EDGESLOPE_BOT_DOWN;
// fill in the post's pixels
for (y=0; y<count; y++) {
int ty = oy + oldColumn->topdelta + y;
if (ty < 0)
continue;
if (ty >= composite_patch->height)
break;
composite_patch->pixels[tx * composite_patch->height + ty] = oldColumnPixelData[y];
}
oldColumn = (const column_t *)((const byte *)oldColumn + oldColumn->length + 4);
countsInColumn[tx].posts_used++;
assert(countsInColumn[tx].posts_used <= countsInColumn[tx].posts);
}
}
W_UnlockLumpNum(patchNum);
}
for (x=0; x<texture->width; x++) {
rcolumn_t *column;
if (countsInColumn[x].patches <= 1)
continue;
// cleanup posts on multipatch columns
column = &composite_patch->columns[x];
i = 0;
while (i<(column->numPosts-1)) {
rpost_t *post1 = &column->posts[i];
rpost_t *post2 = &column->posts[i+1];
int length;
if ((post2->topdelta - post1->topdelta) < 0)
switchPosts(post1, post2);
if ((post1->topdelta + post1->length) >= post2->topdelta) {
length = (post1->length + post2->length) - ((post1->topdelta + post1->length) - post2->topdelta);
if (post1->length < length) {
post1->slope = post2->slope;
post1->length = length;
}
removePostFromColumn(column, i+1);
i = 0;
continue;
}
i++;
}
}
if (1 || composite_patch->isNotTileable) {
const rcolumn_t *column, *prevColumn;
// copy the patch image down and to the right where there are
// holes to eliminate the black halo from bilinear filtering
for (x=0; x<composite_patch->width; x++) {
//oldColumn = (const column_t *)((const byte *)oldPatch + oldPatch->columnofs[x]);
column = R_GetPatchColumnClamped(composite_patch, x);
prevColumn = R_GetPatchColumnClamped(composite_patch, x-1);
if (column->pixels[0] == 0xff) {
// force the first pixel (which is a hole), to use
// the color from the next solid spot in the column
for (y=0; y<composite_patch->height; y++) {
if (column->pixels[y] != 0xff) {
column->pixels[0] = column->pixels[y];
break;
}
}
}
// copy from above or to the left
for (y=1; y<composite_patch->height; y++) {
//if (getIsSolidAtSpot(oldColumn, y)) continue;
if (column->pixels[y] != 0xff) continue;
// this pixel is a hole
if (x && prevColumn->pixels[y-1] != 0xff) {
// copy the color from the left
column->pixels[y] = prevColumn->pixels[y];
}
else {
// copy the color from above
column->pixels[y] = column->pixels[y-1];
}
}
}
// verify that the patch truly is non-rectangular since
// this determines tiling later on
}
free(countsInColumn);
}
//---------------------------------------------------------------------------
static void createPatch(int id) {
rpatch_t *patch;
const int patchNum = id;
const patch_t *oldPatch;
const column_t *oldColumn, *oldPrevColumn, *oldNextColumn;
int x, y;
int pixelDataSize;
int columnsDataSize;
int postsDataSize;
int dataSize;
int *numPostsInColumn;
int numPostsTotal;
const unsigned char *oldColumnPixelData;
int numPostsUsedSoFar;
int edgeSlope;
#ifdef RANGECHECK
if (id >= numlumps)
I_Error("createPatch: %i >= numlumps", id);
#endif
if (!CheckIfPatch(patchNum))
{
I_Error("createPatch: Unknown patch format %s.",
(patchNum < numlumps ? lumpinfo[patchNum].name : NULL));
}
oldPatch = (const patch_t*)W_CacheLumpNum(patchNum);
patch = &patches[id];
// proff - 2003-02-16 What about endianess?
patch->width = LittleShort(oldPatch->width);
patch->widthmask = 0;
patch->height = LittleShort(oldPatch->height);
patch->leftoffset = LittleShort(oldPatch->leftoffset);
patch->topoffset = LittleShort(oldPatch->topoffset);
patch->flags = 0;
if (getPatchIsNotTileable(oldPatch))
patch->flags |= PATCH_ISNOTTILEABLE;
#ifdef GL_DOOM
// Width of M_THERMM patch is 9, but Doom interprets it as 8-columns lump
// during drawing. It is not a problem for software mode and GL_NEAREST,
// but looks wrong with filtering. So I need to patch it during loading.
if (V_GetMode() == VID_MODEGL)
{
if (!strncasecmp(lumpinfo[id].name, "M_THERMM", 8) && patch->width > 8)
{
patch->width--;
}
}
#endif
// work out how much memory we need to allocate for this patch's data
pixelDataSize = (patch->width * patch->height + 4) & ~3;
columnsDataSize = sizeof(rcolumn_t) * patch->width;
// count the number of posts in each column
numPostsInColumn = malloc(sizeof(int) * patch->width);
numPostsTotal = 0;
for (x=0; x<patch->width; x++) {
oldColumn = (const column_t *)((const byte *)oldPatch + LittleLong(oldPatch->columnofs[x]));
numPostsInColumn[x] = 0;
while (oldColumn->topdelta != 0xff) {
numPostsInColumn[x]++;
numPostsTotal++;
oldColumn = (const column_t *)((const byte *)oldColumn + oldColumn->length + 4);
}
}
postsDataSize = numPostsTotal * sizeof(rpost_t);
// allocate our data chunk
dataSize = pixelDataSize + columnsDataSize + postsDataSize;
patch->data = (unsigned char*)Z_Malloc(dataSize, PU_CACHE, (void **)&patch->data);
memset(patch->data, 0, dataSize);
// set out pixel, column, and post pointers into our data array
patch->pixels = patch->data;
patch->columns = (rcolumn_t*)((unsigned char*)patch->pixels + pixelDataSize);
patch->posts = (rpost_t*)((unsigned char*)patch->columns + columnsDataSize);
// sanity check that we've got all the memory allocated we need
assert((((byte*)patch->posts + numPostsTotal*sizeof(rpost_t)) - (byte*)patch->data) == dataSize);
memset(patch->pixels, 0xff, (patch->width*patch->height));
// fill in the pixels, posts, and columns
numPostsUsedSoFar = 0;
for (x=0; x<patch->width; x++) {
int top = -1;
oldColumn = (const column_t *)((const byte *)oldPatch + LittleLong(oldPatch->columnofs[x]));
if (patch->flags&PATCH_ISNOTTILEABLE) {
// non-tiling
if (x == 0) oldPrevColumn = 0;
else oldPrevColumn = (const column_t *)((const byte *)oldPatch + LittleLong(oldPatch->columnofs[x-1]));
if (x == patch->width-1) oldNextColumn = 0;
else oldNextColumn = (const column_t *)((const byte *)oldPatch + LittleLong(oldPatch->columnofs[x+1]));
}
else {
// tiling
int prevColumnIndex = x-1;
int nextColumnIndex = x+1;
while (prevColumnIndex < 0) prevColumnIndex += patch->width;
while (nextColumnIndex >= patch->width) nextColumnIndex -= patch->width;
oldPrevColumn = (const column_t *)((const byte *)oldPatch + LittleLong(oldPatch->columnofs[prevColumnIndex]));
oldNextColumn = (const column_t *)((const byte *)oldPatch + LittleLong(oldPatch->columnofs[nextColumnIndex]));
}
// setup the column's data
patch->columns[x].pixels = patch->pixels + (x*patch->height) + 0;
patch->columns[x].numPosts = numPostsInColumn[x];
patch->columns[x].posts = patch->posts + numPostsUsedSoFar;
while (oldColumn->topdelta != 0xff) {
int len = oldColumn->length;
//e6y: support for DeePsea's true tall patches
if (oldColumn->topdelta <= top)
{
top += oldColumn->topdelta;
}
else
{
top = oldColumn->topdelta;
}
// Clip posts that extend past the bottom
if (top + oldColumn->length > patch->height)
{
len = patch->height - top;
}
if (len > 0)
{
// set up the post's data
patch->posts[numPostsUsedSoFar].topdelta = top;
patch->posts[numPostsUsedSoFar].length = len;
patch->posts[numPostsUsedSoFar].slope = 0;
edgeSlope = getColumnEdgeSlope(oldPrevColumn, oldNextColumn, top);
if (edgeSlope == 1) patch->posts[numPostsUsedSoFar].slope |= RDRAW_EDGESLOPE_TOP_UP;
else if (edgeSlope == -1) patch->posts[numPostsUsedSoFar].slope |= RDRAW_EDGESLOPE_TOP_DOWN;
edgeSlope = getColumnEdgeSlope(oldPrevColumn, oldNextColumn, top+len);
if (edgeSlope == 1) patch->posts[numPostsUsedSoFar].slope |= RDRAW_EDGESLOPE_BOT_UP;
else if (edgeSlope == -1) patch->posts[numPostsUsedSoFar].slope |= RDRAW_EDGESLOPE_BOT_DOWN;
// fill in the post's pixels
oldColumnPixelData = (const byte *)oldColumn + 3;
for (y=0; y<len; y++) {
patch->pixels[x * patch->height + top + y] = oldColumnPixelData[y];
}
}
oldColumn = (const column_t *)((const byte *)oldColumn + oldColumn->length + 4);
numPostsUsedSoFar++;
}
}
if (1 || (patch->flags&PATCH_ISNOTTILEABLE)) {
const rcolumn_t *column, *prevColumn;
// copy the patch image down and to the right where there are
// holes to eliminate the black halo from bilinear filtering
for (x=0; x<patch->width; x++) {
//oldColumn = (const column_t *)((const byte *)oldPatch + oldPatch->columnofs[x]);
column = R_GetPatchColumnClamped(patch, x);
prevColumn = R_GetPatchColumnClamped(patch, x-1);
if (column->pixels[0] == 0xff) {
// e6y: marking of all patches with holes
patch->flags |= PATCH_HASHOLES;
// force the first pixel (which is a hole), to use
// the color from the next solid spot in the column
for (y=0; y<patch->height; y++) {
if (column->pixels[y] != 0xff) {
column->pixels[0] = column->pixels[y];
break;
}
}
}
// copy from above or to the left
for (y=1; y<patch->height; y++) {
//if (getIsSolidAtSpot(oldColumn, y)) continue;
if (column->pixels[y] != 0xff) continue;
// this pixel is a hole
// e6y: marking of all patches with holes
patch->flags |= PATCH_HASHOLES;
if (x && prevColumn->pixels[y-1] != 0xff) {
// copy the color from the left
column->pixels[y] = prevColumn->pixels[y];
}
else {
// copy the color from above
column->pixels[y] = column->pixels[y-1];
}
}
}
// verify that the patch truly is non-rectangular since
// this determines tiling later on
}
W_UnlockLumpNum(patchNum);
free(numPostsInColumn);
}
