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feat(editor): add --gen-texture for synthesizing placeholder PNG textures

Browse source 
Lets users add a working texture to a project without firing up an
external image editor. Useful for prototyping new meshes, filling
out a zone before art is final, or generating CI test fixtures.

Three spec modes:
- "RRGGBB" or "RGB" hex (case-insensitive, optional leading '#') →
  solid fill
- "checker" → 32x32 black/white checkerboard
- "grid" → black background with white 1-px grid every 16

Default 256x256, configurable via optional W H positional args
(clamped to 1..8192). Writes via stbi_write_png so the output is a
standard PNG every WoW open-format pipeline already accepts.

First commit in the new "add content" direction (items / textures /
meshes) the user requested. Verified: solid hex (ff0000), 3-char
hex (8a3), checker, grid all produce valid PNGs of correct sizes;
'notacolor' input fails with exit 1 and a clear error. Brings
command count to 194.
This commit is contained in:
Kelsi 2026-05-07 00:52:29 -07:00
parent 61fc3847c3
commit 6cf2043de4
1 changed files with 113 additions and 1 deletions
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114
tools/editor/main.cpp
View file

@ -524,6 +524,8 @@ static void printUsage(const char* argv0) {
std::printf(" Top-N largest proprietary files (.m2/.wmo/.blp/.dbc) for migration prioritization\n");
std::printf(" --export-data-tree-md <srcDir> [out.md]\n");
std::printf(" Markdown migration-progress report (per-pair table, share %%, recommended next steps)\n");
std::printf(" --gen-texture <out.png> <colorHex|pattern> [W H]\n");
std::printf(" Synthesize a placeholder texture (solid hex color or 'checker'/'grid'); default 256x256\n");
std::printf(" --convert-dbc-json <dbc-path> [out.json]\n");
std::printf(" Convert one DBC file to wowee JSON sidecar format\n");
std::printf(" --convert-json-dbc <json-path> [out.dbc]\n");
@ -907,7 +909,7 @@ int main(int argc, char* argv[]) {
"--validate-project-open-only", "--audit-project",
"--bench-validate-project", "--bench-bake-project",
"--bench-migrate-data-tree", "--list-data-tree-largest",
"--export-data-tree-md",
"--export-data-tree-md", "--gen-texture",
"--validate-glb", "--info-glb", "--info-glb-tree", "--info-glb-bytes",
"--validate-jsondbc", "--check-glb-bounds", "--validate-stl",
"--validate-png", "--validate-blp",
@ -13865,6 +13867,116 @@ int main(int argc, char* argv[]) {
std::printf(" proprietary : %d files, %.2f MB\n",
totalProp, totalPropBytes / (1024.0 * 1024.0));
return 0;
} else if (std::strcmp(argv[i], "--gen-texture") == 0 && i + 2 < argc) {
// Synthesize a placeholder PNG texture. Lets users add a
// working texture to their project without an external
// image editor — useful for prototyping new meshes,
// filling out a zone before art is final, or generating
// test fixtures.
//
// <colorHex|pattern>:
// "RRGGBB" or "RGB" hex (case-insensitive) → solid color
// "checker" → 32x32 black/white checkerboard
// "grid" → black background with white 1-px grid every 16
std::string outPath = argv[++i];
std::string spec = argv[++i];
int W = 256, H = 256;
if (i + 1 < argc && argv[i + 1][0] != '-') {
try { W = std::stoi(argv[++i]); } catch (...) {}
}
if (i + 1 < argc && argv[i + 1][0] != '-') {
try { H = std::stoi(argv[++i]); } catch (...) {}
}
if (W < 1 || H < 1 || W > 8192 || H > 8192) {
std::fprintf(stderr,
"gen-texture: invalid size %dx%d (must be 1..8192)\n", W, H);
return 1;
}
std::vector<uint8_t> pixels(static_cast<size_t>(W) * H * 3, 0);
std::string lower = spec;
std::transform(lower.begin(), lower.end(), lower.begin(),
[](unsigned char c) { return std::tolower(c); });
if (lower == "checker") {
for (int y = 0; y < H; ++y) {
for (int x = 0; x < W; ++x) {
bool dark = ((x / 32) + (y / 32)) & 1;
uint8_t v = dark ? 16 : 240;
size_t i2 = (static_cast<size_t>(y) * W + x) * 3;
pixels[i2 + 0] = v;
pixels[i2 + 1] = v;
pixels[i2 + 2] = v;
}
}
} else if (lower == "grid") {
for (int y = 0; y < H; ++y) {
for (int x = 0; x < W; ++x) {
bool line = (x % 16 == 0) || (y % 16 == 0);
uint8_t v = line ? 240 : 32;
size_t i2 = (static_cast<size_t>(y) * W + x) * 3;
pixels[i2 + 0] = v;
pixels[i2 + 1] = v;
pixels[i2 + 2] = v;
}
}
} else {
// Hex color. Accept "RGB" (3 chars) or "RRGGBB" (6 chars),
// optional leading '#'.
std::string hex = lower;
if (!hex.empty() && hex[0] == '#') hex.erase(0, 1);
auto fromHex = [](char c) -> int {
if (c >= '0' && c <= '9') return c - '0';
if (c >= 'a' && c <= 'f') return 10 + c - 'a';
return -1;
};
uint8_t r = 0, g = 0, b = 0;
if (hex.size() == 6) {
int hi, lo;
if ((hi = fromHex(hex[0])) < 0) goto bad_color;
if ((lo = fromHex(hex[1])) < 0) goto bad_color;
r = static_cast<uint8_t>((hi << 4) | lo);
if ((hi = fromHex(hex[2])) < 0) goto bad_color;
if ((lo = fromHex(hex[3])) < 0) goto bad_color;
g = static_cast<uint8_t>((hi << 4) | lo);
if ((hi = fromHex(hex[4])) < 0) goto bad_color;
if ((lo = fromHex(hex[5])) < 0) goto bad_color;
b = static_cast<uint8_t>((hi << 4) | lo);
} else if (hex.size() == 3) {
int v0, v1, v2;
if ((v0 = fromHex(hex[0])) < 0) goto bad_color;
if ((v1 = fromHex(hex[1])) < 0) goto bad_color;
if ((v2 = fromHex(hex[2])) < 0) goto bad_color;
r = static_cast<uint8_t>((v0 << 4) | v0);
g = static_cast<uint8_t>((v1 << 4) | v1);
b = static_cast<uint8_t>((v2 << 4) | v2);
} else {
goto bad_color;
}
for (int y = 0; y < H; ++y) {
for (int x = 0; x < W; ++x) {
size_t i2 = (static_cast<size_t>(y) * W + x) * 3;
pixels[i2 + 0] = r;
pixels[i2 + 1] = g;
pixels[i2 + 2] = b;
}
}
goto color_ok;
bad_color:
std::fprintf(stderr,
"gen-texture: '%s' is not a valid hex color or 'checker'/'grid'\n",
spec.c_str());
return 1;
color_ok: ;
}
if (!stbi_write_png(outPath.c_str(), W, H, 3,
pixels.data(), W * 3)) {
std::fprintf(stderr,
"gen-texture: stbi_write_png failed for %s\n", outPath.c_str());
return 1;
}
std::printf("Wrote %s\n", outPath.c_str());
std::printf(" size : %dx%d\n", W, H);
std::printf(" spec : %s\n", spec.c_str());
return 0;
} else if (std::strcmp(argv[i], "--info-data-tree") == 0 && i + 1 < argc) {
// Non-destructive companion to --migrate-data-tree. Walks
// <srcDir> recursively, counts files per format pair