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| author | Tavian Barnes <tavianator@gmail.com> | 2011-05-28 18:05:05 -0600 |
|---|---|---|
| committer | Tavian Barnes <tavianator@gmail.com> | 2011-05-28 18:05:05 -0600 |
| commit | efd3c1c2b42ffda0c8f7e5cd9b03fba07eead1ea (patch) | |
| tree | c522f2bafe5def3eb68a79005c049e130ef76b24 /libdimension/gl.c | |
| parent | 1bf306d4d93cc21c220a3f31835023e49e84dd2d (diff) | |
| download | dimension-efd3c1c2b42ffda0c8f7e5cd9b03fba07eead1ea.tar.xz | |
Handle sRGB gamma correctly.
Diffstat (limited to 'libdimension/gl.c')
| -rw-r--r-- | libdimension/gl.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/libdimension/gl.c b/libdimension/gl.c index f5f1c92..a968d75 100644 --- a/libdimension/gl.c +++ b/libdimension/gl.c @@ -82,7 +82,9 @@ dmnsn_gl_write_canvas(const dmnsn_canvas *canvas) for (size_t x = 0; x < width; ++x) { pixel = pixels + 4*(y*width + x); - color = dmnsn_remove_filter(dmnsn_get_pixel(canvas, x, y)); + color = dmnsn_get_pixel(canvas, x, y); + color = dmnsn_remove_filter(color); + color = dmnsn_color_to_sRGB(color); /* Saturate R, G, and B to [0, UINT16_MAX] */ @@ -153,6 +155,7 @@ dmnsn_gl_read_canvas(size_t x0, size_t y0, (double)pixel[2]/UINT16_MAX, (double)pixel[3]/UINT16_MAX, 0.0); + color = dmnsn_color_from_sRGB(color); dmnsn_set_pixel(canvas, x, y, color); } } @@ -167,7 +170,9 @@ dmnsn_gl_optimizer_fn(const dmnsn_canvas *canvas, dmnsn_canvas_optimizer optimizer, size_t x, size_t y) { GLushort *pixel = (GLushort *)optimizer.ptr + 4*(y*canvas->width + x); - dmnsn_color color = dmnsn_remove_filter(dmnsn_get_pixel(canvas, x, y)); + dmnsn_color color = dmnsn_get_pixel(canvas, x, y); + color = dmnsn_remove_filter(color); + color = dmnsn_color_to_sRGB(color); /* Saturate R, G, and B to [0, UINT16_MAX] */ |