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Add support for libwebp version 4.

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This commit is contained in:
Shunsuke Michii 2016-06-29 09:43:37 +09:00
parent 6608fdcc01
commit bbce08acb6
1 changed files with 9 additions and 1 deletions
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10
webp/encode.go
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@ -14,6 +14,14 @@ static void free_WebPPicture(WebPPicture* webpPicture) {
free(webpPicture); free(webpPicture);
} }
static int webPConfigLosslessPreset(WebPConfig* webpConfig, int level) {
#if WEBP_ENCODER_ABI_VERSION < 0x203
return 0;
#else
return WebPConfigLosslessPreset(webpConfig, level);
#endif
}
static int getNearLossless(WebPConfig* webpConfig, int* value) { static int getNearLossless(WebPConfig* webpConfig, int* value) {
#if WEBP_ENCODER_ABI_VERSION < 0x206 #if WEBP_ENCODER_ABI_VERSION < 0x206
return 0; return 0;
@ -82,7 +90,7 @@ func ConfigPreset(preset Preset, quality float32) (*Config, error) {
// compression) and 9 (slower, best compression). // compression) and 9 (slower, best compression).
func ConfigLosslessPreset(level int) (*Config, error) { func ConfigLosslessPreset(level int) (*Config, error) {
c := &Config{} c := &Config{}
if C.WebPConfigLosslessPreset(&c.c, C.int(level)) == 0 { if C.webPConfigLosslessPreset(&c.c, C.int(level)) == 0 {
return nil, errors.New("failed to initialize webp config") return nil, errors.New("failed to initialize webp config")
} }
return c, nil return c, nil