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image_filter_jpeg_quality

This commit is contained in:
Igor Sysoev 2009-05-16 16:57:11 +00:00
parent b341110460
commit a5a579ca5c
1 changed files with 17 additions and 3 deletions
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20
src/http/modules/ngx_http_image_filter_module.c
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@ -38,6 +38,7 @@ typedef struct {
ngx_uint_t filter;
ngx_uint_t width;
ngx_uint_t height;
ngx_int_t jpeg_quality;
size_t buffer_size;
} ngx_http_image_filter_conf_t;
@ -98,6 +99,13 @@ static ngx_command_t ngx_http_image_filter_commands[] = {
0,
NULL },
{ ngx_string("image_filter_jpeg_quality"),
NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
ngx_conf_set_num_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof(ngx_http_image_filter_conf_t, jpeg_quality),
NULL },
{ ngx_string("image_filter_buffer"),
NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
ngx_conf_set_size_slot,
@ -886,15 +894,17 @@ static u_char *
ngx_http_image_out(ngx_http_request_t *r, ngx_uint_t type, gdImagePtr img,
int *size)
{
char *failed;
u_char *out;
char *failed;
u_char *out;
ngx_http_image_filter_conf_t *conf;
out = NULL;
switch (type) {
case NGX_HTTP_IMAGE_JPEG:
out = gdImageJpegPtr(img, size, /* default quality */ -1);
conf = ngx_http_get_module_loc_conf(r, ngx_http_image_filter_module);
out = gdImageJpegPtr(img, size, conf->jpeg_quality);
failed = "gdImageJpegPtr() failed";
break;
@ -939,6 +949,7 @@ ngx_http_image_filter_create_conf(ngx_conf_t *cf)
}
conf->filter = NGX_CONF_UNSET_UINT;
conf->jpeg_quality = NGX_CONF_UNSET;
conf->buffer_size = NGX_CONF_UNSET_SIZE;
return conf;
@ -963,6 +974,9 @@ ngx_http_image_filter_merge_conf(ngx_conf_t *cf, void *parent, void *child)
}
}
/* 75 is libjpeg default quality */
ngx_conf_merge_value(conf->jpeg_quality, prev->jpeg_quality, 75);
ngx_conf_merge_size_value(conf->buffer_size, prev->buffer_size,
1 * 1024 * 1024);