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68 lines
2.1 KiB
68 lines
2.1 KiB
// Copyright 2014 Google Inc. All Rights Reserved. |
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// |
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// Use of this source code is governed by a BSD-style license |
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// that can be found in the COPYING file in the root of the source |
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// tree. An additional intellectual property rights grant can be found |
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// in the file PATENTS. All contributing project authors may |
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// be found in the AUTHORS file in the root of the source tree. |
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// ----------------------------------------------------------------------------- |
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// |
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// ARGB making functions. |
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// |
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// Author: Djordje Pesut (djordje.pesut@imgtec.com) |
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#include "./dsp.h" |
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static WEBP_INLINE uint32_t MakeARGB32(int a, int r, int g, int b) { |
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return (((uint32_t)a << 24) | (r << 16) | (g << 8) | b); |
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} |
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static void PackARGB(const uint8_t* a, const uint8_t* r, const uint8_t* g, |
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const uint8_t* b, int len, uint32_t* out) { |
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int i; |
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for (i = 0; i < len; ++i) { |
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out[i] = MakeARGB32(a[4 * i], r[4 * i], g[4 * i], b[4 * i]); |
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} |
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} |
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static void PackRGB(const uint8_t* r, const uint8_t* g, const uint8_t* b, |
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int len, int step, uint32_t* out) { |
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int i, offset = 0; |
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for (i = 0; i < len; ++i) { |
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out[i] = MakeARGB32(0xff, r[offset], g[offset], b[offset]); |
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offset += step; |
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} |
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} |
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void (*VP8PackARGB)(const uint8_t*, const uint8_t*, const uint8_t*, |
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const uint8_t*, int, uint32_t*); |
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void (*VP8PackRGB)(const uint8_t*, const uint8_t*, const uint8_t*, |
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int, int, uint32_t*); |
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extern void VP8EncDspARGBInitMIPSdspR2(void); |
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extern void VP8EncDspARGBInitSSE2(void); |
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static volatile VP8CPUInfo argb_last_cpuinfo_used = |
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(VP8CPUInfo)&argb_last_cpuinfo_used; |
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WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspARGBInit(void) { |
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if (argb_last_cpuinfo_used == VP8GetCPUInfo) return; |
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VP8PackARGB = PackARGB; |
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VP8PackRGB = PackRGB; |
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// If defined, use CPUInfo() to overwrite some pointers with faster versions. |
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if (VP8GetCPUInfo != NULL) { |
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#if defined(WEBP_USE_SSE2) |
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if (VP8GetCPUInfo(kSSE2)) { |
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VP8EncDspARGBInitSSE2(); |
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} |
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#endif |
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#if defined(WEBP_USE_MIPS_DSP_R2) |
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if (VP8GetCPUInfo(kMIPSdspR2)) { |
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VP8EncDspARGBInitMIPSdspR2(); |
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} |
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#endif |
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} |
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argb_last_cpuinfo_used = VP8GetCPUInfo; |
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}
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