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Extensions read YAPF 2; Nix package

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- KDE thumbnailer: texture loader, decodes only the mip it needs; GPU
  blocks, 16-bit and float via the new yapf_tex_to_rgba8. Tested through
  KDE's plugin loader with KF6 from nixpkgs.
- Photoshop: shows the tool's error message; HDR textures open as 32-bit
  (.hdr), 16-bit stays 16-bit; 16-bit documents save as 16-bit.
- CLI: 16-bit PNG export, readable conversion errors.
- default.nix: yapf tool, library, header, MIME type and thumbnailer
  (absolute store path); runs the test suite.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DVrVthWN8GsmgHGUhhsCYm
This commit is contained in:
Claude 2026-10-11 09:40:30 +00:00
commit a6c032d824
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13 changed files with 336 additions and 48 deletions
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30
tests/test_yapf.c
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@ -632,6 +632,35 @@ static void v2_mips(void) {
yapf_tex_free(t);
}
static void v2_preview(void) {
uint8_t out[4 * 4 * 4];
/* gray + alpha u16 */
yapf_texture_t d = desc(4, 4, 2, YAPF_SAMPLE_U16);
yapf_texture_t *t = yapf_tex_create(&d);
uint16_t *p = (uint16_t *)t->data[0];
for (int i = 0; i < 16; i++) { p[2 * i] = 65535; p[2 * i + 1] = 32896; }
int ok = yapf_tex_to_rgba8(t, 0, 0, out) == YAPF_OK &&
out[0] == 255 && out[1] == 255 && out[2] == 255 && out[3] == 128;
yapf_tex_free(t);
/* linear half 0.2140 → sRGB 128, 2.0 clamps, alpha stays linear */
d = desc(4, 4, 4, YAPF_SAMPLE_F16);
t = yapf_tex_create(&d);
p = (uint16_t *)t->data[0];
for (int i = 0; i < 16; i++) {
p[4 * i] = yapf_float_to_half(0.2158605f); p[4 * i + 1] = yapf_float_to_half(2.0f);
p[4 * i + 2] = yapf_float_to_half(-1.0f); p[4 * i + 3] = yapf_float_to_half(0.5f);
}
ok = ok && yapf_tex_to_rgba8(t, 0, 0, out) == YAPF_OK &&
out[0] == 128 && out[1] == 255 && out[2] == 0 && out[3] == 128;
/* BC7 and BC6H go through the block decoders */
yapf_texture_t *c = NULL;
ok = ok && yapf_tex_compress(t, YAPF_GPU_BC6H, &c) == YAPF_OK &&
yapf_tex_to_rgba8(c, 0, 0, out) == YAPF_OK && out[3] == 255 && out[1] == 255;
yapf_tex_free(c);
yapf_tex_free(t);
CHECK(ok, "yapf_tex_to_rgba8 converts every payload for display");
}
static void v2_misc(void) {
int ok = 1;
for (uint32_t h = 0; h < 0x10000 && ok; h++) {
@ -697,6 +726,7 @@ int main(int argc, char **argv) {
v2_gpu();
v2_mips();
v2_misc();
v2_preview();
printf("%d tests, %d failures\n", tests, fails);
return fails != 0;