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output: fix wlr_output_set_gamma() with zero size
This is documented to reset the gamma LUT, but we don't handle this properly. While at it, make sure we leave wlr_output.pending in a good state on allocation failure.
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parent
ebd4c83cd6
commit
2ad25b1460
1 changed files with 13 additions and 9 deletions
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@ -925,18 +925,22 @@ void wlr_output_send_present(struct wlr_output *output,
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void wlr_output_set_gamma(struct wlr_output *output, size_t size,
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const uint16_t *r, const uint16_t *g, const uint16_t *b) {
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uint16_t *gamma_lut = NULL;
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if (size > 0) {
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gamma_lut = malloc(3 * size * sizeof(uint16_t));
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if (gamma_lut == NULL) {
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wlr_log_errno(WLR_ERROR, "Allocation failed");
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return;
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}
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memcpy(gamma_lut, r, size * sizeof(uint16_t));
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memcpy(gamma_lut + size, g, size * sizeof(uint16_t));
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memcpy(gamma_lut + 2 * size, b, size * sizeof(uint16_t));
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}
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output_state_clear_gamma_lut(&output->pending);
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output->pending.gamma_lut_size = size;
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output->pending.gamma_lut = malloc(3 * size * sizeof(uint16_t));
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if (output->pending.gamma_lut == NULL) {
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wlr_log_errno(WLR_ERROR, "Allocation failed");
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return;
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}
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memcpy(output->pending.gamma_lut, r, size * sizeof(uint16_t));
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memcpy(output->pending.gamma_lut + size, g, size * sizeof(uint16_t));
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memcpy(output->pending.gamma_lut + 2 * size, b, size * sizeof(uint16_t));
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output->pending.gamma_lut = gamma_lut;
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output->pending.committed |= WLR_OUTPUT_STATE_GAMMA_LUT;
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}
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