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authorCedric BAIL <cedric@osg.samsung.com>2015-01-06 11:42:55 +0100
committerCedric BAIL <cedric@osg.samsung.com>2015-01-06 11:51:58 +0100
commitb61e9525d1d932e890606cb70a67b0415e7e2520 (patch)
tree26c0836632de10952f49aca4d37c9d8ead81327a /src/lib/eet
parenteet: refactorize handling of endian. (diff)
downloadefl-b61e9525d1d932e890606cb70a67b0415e7e2520.tar.gz
eet: refactoring jpeg encoding.
Diffstat (limited to 'src/lib/eet')
-rw-r--r--src/lib/eet/eet_image.c244
1 files changed, 97 insertions, 147 deletions
diff --git a/src/lib/eet/eet_image.c b/src/lib/eet/eet_image.c
index 5ebe5a01b1..6767478d00 100644
--- a/src/lib/eet/eet_image.c
+++ b/src/lib/eet/eet_image.c
@@ -1535,15 +1535,85 @@ finish:
return result;
}
-
-
-static void *
-eet_data_image_jpeg_convert(int *size,
- const void *data,
+static inline void *
+_eet_data_image_grey_encode(const void *data,
unsigned int w,
unsigned int h,
- int alpha,
- int quality)
+ int quality,
+ int *size)
+{
+ const int *ptr;
+ void *dst = NULL;
+ size_t sz = 0;
+ struct _JPEG_error_mgr jerr;
+ JSAMPROW *jbuf;
+ struct jpeg_compress_struct cinfo;
+ unsigned char *buf;
+
+ buf = alloca(3 * w);
+
+ cinfo.err = jpeg_std_error(&(jerr.pub));
+ jerr.pub.error_exit = _eet_image_jpeg_error_exit_cb;
+ jerr.pub.emit_message = _eet_image_jpeg_emit_message_cb;
+ jerr.pub.output_message = _eet_image_jpeg_output_message_cb;
+ if (setjmp(jerr.setjmp_buffer))
+ {
+ return NULL;
+ }
+
+ jpeg_create_compress(&cinfo);
+ if (eet_jpeg_membuf_dst(&cinfo, &dst, &sz))
+ {
+ jpeg_destroy_compress(&cinfo);
+ return NULL;
+ }
+
+ cinfo.image_width = w;
+ cinfo.image_height = h;
+ cinfo.input_components = 1;
+ cinfo.in_color_space = JCS_GRAYSCALE;
+ jpeg_set_defaults(&cinfo);
+ jpeg_set_quality(&cinfo, quality, TRUE);
+ if (quality >= 90)
+ {
+ cinfo.comp_info[0].h_samp_factor = 1;
+ cinfo.comp_info[0].v_samp_factor = 1;
+ cinfo.comp_info[1].h_samp_factor = 1;
+ cinfo.comp_info[1].v_samp_factor = 1;
+ cinfo.comp_info[2].h_samp_factor = 1;
+ cinfo.comp_info[2].v_samp_factor = 1;
+ }
+
+ jpeg_start_compress(&cinfo, TRUE);
+
+ while (cinfo.next_scanline < cinfo.image_height)
+ {
+ unsigned int i, j;
+
+ ptr = ((const int *)data) + cinfo.next_scanline * w;
+ /* convert scaline from ARGB to RGB packed */
+ for (j = 0, i = 0; i < w; i++)
+ {
+ buf[j++] = ((*ptr) >> 24) & 0xff;
+ ptr++;
+ }
+ jbuf = (JSAMPROW *)(&buf);
+ jpeg_write_scanlines(&cinfo, jbuf, 1);
+ }
+
+ jpeg_finish_compress(&cinfo);
+ jpeg_destroy_compress(&cinfo);
+
+ *size = sz;
+ return dst;
+}
+
+static inline void *
+_eet_data_image_rgb_encode(const void *data,
+ unsigned int w,
+ unsigned int h,
+ int quality,
+ int *size)
{
struct jpeg_compress_struct cinfo;
struct _JPEG_error_mgr jerr;
@@ -1553,8 +1623,6 @@ eet_data_image_jpeg_convert(int *size,
JSAMPROW *jbuf;
unsigned char *buf;
- (void)alpha; /* unused */
-
buf = alloca(3 * w);
memset(&cinfo, 0, sizeof (struct jpeg_compress_struct));
@@ -1621,11 +1689,22 @@ eet_data_image_jpeg_convert(int *size,
}
static void *
+eet_data_image_jpeg_convert(int *size,
+ const void *data,
+ unsigned int w,
+ unsigned int h,
+ int alpha EINA_UNUSED,
+ int quality)
+{
+ return _eet_data_image_rgb_encode(data, w, h, quality, size);
+}
+
+static void *
eet_data_image_jpeg_alpha_convert(int *size,
const void *data,
unsigned int w,
unsigned int h,
- int alpha,
+ int alpha EINA_UNUSED,
int quality)
{
unsigned char *d1, *d2;
@@ -1633,147 +1712,18 @@ eet_data_image_jpeg_alpha_convert(int *size,
int *header;
int sz1, sz2;
- (void)alpha; /* unused */
-
_eet_image_endian_check();
- {
- const int *ptr;
- void *dst = NULL;
- size_t sz = 0;
- struct _JPEG_error_mgr jerr;
- JSAMPROW *jbuf;
- struct jpeg_compress_struct cinfo;
- unsigned char *buf;
-
- buf = alloca(3 * w);
-
- cinfo.err = jpeg_std_error(&(jerr.pub));
- jerr.pub.error_exit = _eet_image_jpeg_error_exit_cb;
- jerr.pub.emit_message = _eet_image_jpeg_emit_message_cb;
- jerr.pub.output_message = _eet_image_jpeg_output_message_cb;
- if (setjmp(jerr.setjmp_buffer))
- return NULL;
-
- jpeg_create_compress(&cinfo);
- if (eet_jpeg_membuf_dst(&cinfo, &dst, &sz))
- {
- jpeg_destroy_compress(&cinfo);
- return NULL;
- }
-
- cinfo.image_width = w;
- cinfo.image_height = h;
- cinfo.input_components = 3;
- cinfo.in_color_space = JCS_RGB;
- cinfo.optimize_coding = FALSE;
- cinfo.dct_method = JDCT_ISLOW; // JDCT_FLOAT JDCT_IFAST(quality loss)
- if (quality < 60) cinfo.dct_method = JDCT_IFAST;
- jpeg_set_defaults(&cinfo);
- jpeg_set_quality(&cinfo, quality, TRUE);
- if (quality >= 90)
- {
- cinfo.comp_info[0].h_samp_factor = 1;
- cinfo.comp_info[0].v_samp_factor = 1;
- cinfo.comp_info[1].h_samp_factor = 1;
- cinfo.comp_info[1].v_samp_factor = 1;
- cinfo.comp_info[2].h_samp_factor = 1;
- cinfo.comp_info[2].v_samp_factor = 1;
- }
-
- jpeg_start_compress(&cinfo, TRUE);
-
- while (cinfo.next_scanline < cinfo.image_height)
- {
- unsigned int i, j;
-
- ptr = ((const int *)data) + cinfo.next_scanline * w;
- /* convert scaline from ARGB to RGB packed */
- for (j = 0, i = 0; i < w; i++)
- {
- buf[j++] = ((*ptr) >> 16) & 0xff;
- buf[j++] = ((*ptr) >> 8) & 0xff;
- buf[j++] = ((*ptr)) & 0xff;
- ptr++;
- }
- jbuf = (JSAMPROW *)(&buf);
- jpeg_write_scanlines(&cinfo, jbuf, 1);
- }
-
- jpeg_finish_compress(&cinfo);
- jpeg_destroy_compress(&cinfo);
+ d1 = _eet_data_image_rgb_encode(data, w, h, quality, &sz1);
+ d2 = _eet_data_image_grey_encode(data, w, h, quality, &sz2);
- d1 = dst;
- sz1 = sz;
- }
- {
- const int *ptr;
- void *dst = NULL;
- size_t sz = 0;
- struct _JPEG_error_mgr jerr;
- JSAMPROW *jbuf;
- struct jpeg_compress_struct cinfo;
- unsigned char *buf;
-
- buf = alloca(3 * w);
-
- cinfo.err = jpeg_std_error(&(jerr.pub));
- jerr.pub.error_exit = _eet_image_jpeg_error_exit_cb;
- jerr.pub.emit_message = _eet_image_jpeg_emit_message_cb;
- jerr.pub.output_message = _eet_image_jpeg_output_message_cb;
- if (setjmp(jerr.setjmp_buffer))
- {
- free(d1);
- return NULL;
- }
-
- jpeg_create_compress(&cinfo);
- if (eet_jpeg_membuf_dst(&cinfo, &dst, &sz))
- {
- jpeg_destroy_compress(&cinfo);
- free(d1);
- return NULL;
- }
-
- cinfo.image_width = w;
- cinfo.image_height = h;
- cinfo.input_components = 1;
- cinfo.in_color_space = JCS_GRAYSCALE;
- jpeg_set_defaults(&cinfo);
- jpeg_set_quality(&cinfo, quality, TRUE);
- if (quality >= 90)
- {
- cinfo.comp_info[0].h_samp_factor = 1;
- cinfo.comp_info[0].v_samp_factor = 1;
- cinfo.comp_info[1].h_samp_factor = 1;
- cinfo.comp_info[1].v_samp_factor = 1;
- cinfo.comp_info[2].h_samp_factor = 1;
- cinfo.comp_info[2].v_samp_factor = 1;
- }
-
- jpeg_start_compress(&cinfo, TRUE);
-
- while (cinfo.next_scanline < cinfo.image_height)
- {
- unsigned int i, j;
-
- ptr = ((const int *)data) + cinfo.next_scanline * w;
- /* convert scaline from ARGB to RGB packed */
- for (j = 0, i = 0; i < w; i++)
- {
- buf[j++] = ((*ptr) >> 24) & 0xff;
- ptr++;
- }
- jbuf = (JSAMPROW *)(&buf);
- jpeg_write_scanlines(&cinfo, jbuf, 1);
- }
-
- jpeg_finish_compress(&cinfo);
- jpeg_destroy_compress(&cinfo);
+ if (!d1 || !d2)
+ {
+ free(d1);
+ free(d2);
+ return NULL;
+ }
- d2 = dst;
- sz2 = sz;
- }
d = malloc(12 + sz1 + sz2);
if (!d)
{