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