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render/color: add wlr_color_transform_eval()

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Makes it so the Vulkan renderer can handle arbitrary color
transforms, and doesn't need to be updated each time a new one is
added.
This commit is contained in:
Simon Ser 2025-06-15 15:00:21 +02:00
parent d786e07899
commit 3d36ab9211
4 changed files with 82 additions and 25 deletions
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19
render/vulkan/pass.c
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@ -964,19 +964,6 @@ static bool create_3d_lut_image(struct wlr_vk_renderer *renderer,
*ds = VK_NULL_HANDLE;
*ds_pool = NULL;
struct wlr_color_transform_lcms2 *tr_lcms2 = NULL;
struct wlr_color_transform_lut_3x1d *tr_lut_3x1d = NULL;
switch (tr->type) {
case COLOR_TRANSFORM_INVERSE_EOTF:
abort(); // unreachable
case COLOR_TRANSFORM_LCMS2:
tr_lcms2 = color_transform_lcms2_from_base(tr);
break;
case COLOR_TRANSFORM_LUT_3X1D:
tr_lut_3x1d = color_transform_lut_3x1d_from_base(tr);
break;
}
// R32G32B32 is not a required Vulkan format
// TODO: use it when available
VkFormat format = VK_FORMAT_R32G32B32A32_SFLOAT;
@ -1074,11 +1061,7 @@ static bool create_3d_lut_image(struct wlr_vk_renderer *renderer,
b_index * sample_range,
};
float rgb_out[3];
if (tr_lcms2 != NULL) {
color_transform_lcms2_eval(tr_lcms2, rgb_out, rgb_in);
} else {
color_transform_lut_3x1d_eval(tr_lut_3x1d, rgb_out, rgb_in);
}
wlr_color_transform_eval(tr, rgb_out, rgb_in);
dst[dst_offset] = rgb_out[0];
dst[dst_offset + 1] = rgb_out[1];