* Copyright (C) 2014 Intel Corporation
* Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
*
- * The source code contained or described herein and all documents related to
- * the source code ("Material") are owned by Intel Corporation or its suppliers
- * or licensors. Title to the Material remains with Intel Corporation or its
- * suppliers and licensors. The Material contains trade secrets and proprietary
- * and confidential information of Intel or its suppliers and licensors. The
- * Material is protected by worldwide copyright and trade secret laws and
- * treaty provisions. No part of the Material may be used, copied, reproduced,
- * modified, published, uploaded, posted, transmitted, distributed, or
- * disclosed in any way without Intel's prior express written permission.
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
*
- * No license under any patent, copyright, trade secret or other intellectual
- * property right is granted to or conferred upon you by disclosure or delivery
- * of the Materials, either expressly, by implication, inducement, estoppel or
- * otherwise. Any license under such intellectual property rights must be
- * express and approved by Intel in writing.
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef I965_VPP_AVS_H
#include <stdbool.h>
/** Maximum number of phases for the sharp filter */
-#define AVS_MAX_PHASES 16
+#define AVS_MAX_PHASES 32
/** Maximum number of coefficients for luma samples */
#define AVS_MAX_LUMA_COEFFS 8
#define AVS_MAX_CHROMA_COEFFS 4
typedef struct avs_coeffs AVSCoeffs;
+typedef struct avs_coeffs_range AVSCoeffsRange;
typedef struct avs_config AVSConfig;
typedef struct avs_state AVSState;
float uv_k_v[AVS_MAX_CHROMA_COEFFS];
};
+/** AVS coefficients range used for validation */
+struct avs_coeffs_range {
+ /** Lower bound for all coefficients */
+ AVSCoeffs lower_bound;
+ /** Upper bound for all coefficients */
+ AVSCoeffs upper_bound;
+};
+
/** Static configuration (per-generation) */
struct avs_config {
/** Number of bits used for the fractional part of a coefficient */
int coeff_frac_bits;
/** The smallest float that could be represented as a coefficient */
float coeff_epsilon;
+ /** Coefficients range */
+ AVSCoeffsRange coeff_range;
/** Number of phases for the sharp filter */
int num_phases;
/** Number of coefficients for luma samples */
struct avs_state {
/** Per-generation configuration parameters */
const AVSConfig *config;
+ /** Scaling flags */
+ uint32_t flags;
+ /** Scaling factor on the X-axis (horizontal) */
+ float scale_x;
+ /** Scaling factor on the Y-axis (vertical) */
+ float scale_y;
/** Coefficients for the polyphase scaler */
AVSCoeffs coeffs[AVS_MAX_PHASES + 1];
};
bool
avs_update_coefficients(AVSState *avs, float sx, float sy, uint32_t flags);
+/** Checks whether AVS is needed, e.g. if high-quality scaling is requested */
+static inline bool
+avs_is_needed(uint32_t flags)
+{
+ return ((flags & VA_FILTER_SCALING_MASK) >= VA_FILTER_SCALING_HQ);
+}
+
#endif /* I965_VPP_AVS_H */
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