API: deprecate 'bpp' member in favor of 'prec'

in opj_image_comp and opj_image_comptparm structures.

bpp was redundant with prec, and almost never set by the library, except
by opj_image_create(). This change should hopefully not impact existing,
working, users of the API, which should already have used prec to get
things working.

Fixes #1379

5 files changed, 2 insertions, 23 deletions

diff --git a/src/bin/jp2/convert.c b/src/bin/jp2/convert.c
index 7610e245..7205ccf9 100644
--- a/src/bin/jp2/convert.c
+++ b/src/bin/jp2/convert.c
@@ -117,7 +117,6 @@ static void scale_component_up(opj_image_comp_t* component,
         }
     }
     component->prec = precision;
-    component->bpp = precision;
 }
 void scale_component(opj_image_comp_t* component, OPJ_UINT32 precision)
 {
@@ -144,7 +143,6 @@ void scale_component(opj_image_comp_t* component, OPJ_UINT32 precision)
             l_data[i] >>= shift;
         }
     }
-    component->bpp = precision;
     component->prec = precision;
 }
 
@@ -838,7 +836,6 @@ opj_image_t* tgatoimage(const char *filename, opj_cparameters_t *parameters)
 
     for (i = 0; i < numcomps; i++) {
         cmptparm[i].prec = 8;
-        cmptparm[i].bpp = 8;
         cmptparm[i].sgnd = 0;
         cmptparm[i].dx = (OPJ_UINT32)subsampling_dx;
         cmptparm[i].dy = (OPJ_UINT32)subsampling_dy;
@@ -1269,7 +1266,6 @@ opj_image_t* pgxtoimage(const char *filename, opj_cparameters_t *parameters)
     }
 
     cmptparm.prec = (OPJ_UINT32)prec;
-    cmptparm.bpp = (OPJ_UINT32)prec;
     cmptparm.dx = (OPJ_UINT32)parameters->subsampling_dx;
     cmptparm.dy = (OPJ_UINT32)parameters->subsampling_dy;
 
@@ -1327,7 +1323,7 @@ opj_image_t* pgxtoimage(const char *filename, opj_cparameters_t *parameters)
         comp->data[i] = v;
     }
     fclose(f);
-    comp->bpp = (OPJ_UINT32)int_floorlog2(max) + 1;
+    comp->prec = (OPJ_UINT32)int_floorlog2(max) + 1;
 
     return image;
 }
@@ -1875,7 +1871,6 @@ opj_image_t* pnmtoimage(const char *filename, opj_cparameters_t *parameters)
 
     for (i = 0; i < numcomps; i++) {
         cmptparm[i].prec = (OPJ_UINT32)prec;
-        cmptparm[i].bpp = (OPJ_UINT32)prec;
         cmptparm[i].sgnd = 0;
         cmptparm[i].dx = (OPJ_UINT32)subsampling_dx;
         cmptparm[i].dy = (OPJ_UINT32)subsampling_dy;
@@ -2366,7 +2361,6 @@ static opj_image_t* rawtoimage_common(const char *filename,
     /* initialize image components */
     for (i = 0; i < numcomps; i++) {
         cmptparm[i].prec = (OPJ_UINT32)raw_cp->rawBitDepth;
-        cmptparm[i].bpp = (OPJ_UINT32)raw_cp->rawBitDepth;
         cmptparm[i].sgnd = (OPJ_UINT32)raw_cp->rawSigned;
         cmptparm[i].dx = (OPJ_UINT32)(subsampling_dx * raw_cp->rawComps[i].dx);
         cmptparm[i].dy = (OPJ_UINT32)(subsampling_dy * raw_cp->rawComps[i].dy);
diff --git a/src/bin/jp2/convertbmp.c b/src/bin/jp2/convertbmp.c
index 2fc4e9bc..eb4d420c 100644
--- a/src/bin/jp2/convertbmp.c
+++ b/src/bin/jp2/convertbmp.c
@@ -198,14 +198,10 @@ static void bmpmask32toimage(const OPJ_UINT8* pData, OPJ_UINT32 stride,
     bmp_mask_get_shift_and_prec(blueMask,  &blueShift,  &bluePrec);
     bmp_mask_get_shift_and_prec(alphaMask, &alphaShift, &alphaPrec);
 
-    image->comps[0].bpp = redPrec;
     image->comps[0].prec = redPrec;
-    image->comps[1].bpp = greenPrec;
     image->comps[1].prec = greenPrec;
-    image->comps[2].bpp = bluePrec;
     image->comps[2].prec = bluePrec;
     if (hasAlpha) {
-        image->comps[3].bpp = alphaPrec;
         image->comps[3].prec = alphaPrec;
     }
 
@@ -260,14 +256,10 @@ static void bmpmask16toimage(const OPJ_UINT8* pData, OPJ_UINT32 stride,
     bmp_mask_get_shift_and_prec(blueMask,  &blueShift,  &bluePrec);
     bmp_mask_get_shift_and_prec(alphaMask, &alphaShift, &alphaPrec);
 
-    image->comps[0].bpp = redPrec;
     image->comps[0].prec = redPrec;
-    image->comps[1].bpp = greenPrec;
     image->comps[1].prec = greenPrec;
-    image->comps[2].bpp = bluePrec;
     image->comps[2].prec = bluePrec;
     if (hasAlpha) {
-        image->comps[3].bpp = alphaPrec;
         image->comps[3].prec = alphaPrec;
     }
 
@@ -838,7 +830,6 @@ opj_image_t* bmptoimage(const char *filename, opj_cparameters_t *parameters)
     memset(&cmptparm[0], 0, sizeof(cmptparm));
     for (i = 0; i < 4U; i++) {
         cmptparm[i].prec = 8;
-        cmptparm[i].bpp  = 8;
         cmptparm[i].sgnd = 0;
         cmptparm[i].dx   = (OPJ_UINT32)parameters->subsampling_dx;
         cmptparm[i].dy   = (OPJ_UINT32)parameters->subsampling_dy;
diff --git a/src/bin/jp2/convertpng.c b/src/bin/jp2/convertpng.c
index cd074001..b8378d35 100644
--- a/src/bin/jp2/convertpng.c
+++ b/src/bin/jp2/convertpng.c
@@ -193,9 +193,8 @@ static opj_image_t * pngtoimage_internal(opj_cparameters_t * params,
         /* Create image */
         memset(cmptparm, 0, sizeof(cmptparm));
         for (i = 0; i < nr_comp; ++i) {
-            cmptparm[i].prec = (OPJ_UINT32)bit_depth;
             /* bits_per_pixel: 8 or 16 */
-            cmptparm[i].bpp = (OPJ_UINT32)bit_depth;
+            cmptparm[i].prec = (OPJ_UINT32)bit_depth;
             cmptparm[i].sgnd = 0;
             cmptparm[i].dx = (OPJ_UINT32)params->subsampling_dx;
             cmptparm[i].dy = (OPJ_UINT32)params->subsampling_dy;
diff --git a/src/bin/jp2/converttif.c b/src/bin/jp2/converttif.c
index efd5a4e7..61b295bd 100644
--- a/src/bin/jp2/converttif.c
+++ b/src/bin/jp2/converttif.c
@@ -1389,7 +1389,6 @@ opj_image_t* tiftoimage(const char *filename, opj_cparameters_t *parameters)
 
     for (j = 0; j < numcomps; j++) {
         cmptparm[j].prec = tiBps;
-        cmptparm[j].bpp = tiBps;
         cmptparm[j].dx = (OPJ_UINT32)subsampling_dx;
         cmptparm[j].dy = (OPJ_UINT32)subsampling_dy;
         cmptparm[j].w = (OPJ_UINT32)w;
diff --git a/src/bin/jp2/opj_decompress.c b/src/bin/jp2/opj_decompress.c
index 0ef48767..2ce2783a 100644
--- a/src/bin/jp2/opj_decompress.c
+++ b/src/bin/jp2/opj_decompress.c
@@ -1086,8 +1086,6 @@ static opj_image_t* convert_gray_to_rgb(opj_image_t* original)
         return NULL;
     }
 
-    l_new_components[0].bpp  = l_new_components[1].bpp  = l_new_components[2].bpp  =
-                                   original->comps[0].bpp;
     l_new_components[0].dx   = l_new_components[1].dx   = l_new_components[2].dx   =
                                    original->comps[0].dx;
     l_new_components[0].dy   = l_new_components[1].dy   = l_new_components[2].dy   =
@@ -1106,7 +1104,6 @@ static opj_image_t* convert_gray_to_rgb(opj_image_t* original)
                                    original->comps[0].y0;
 
     for (compno = 1U; compno < original->numcomps; ++compno) {
-        l_new_components[compno + 2U].bpp  = original->comps[compno].bpp;
         l_new_components[compno + 2U].dx   = original->comps[compno].dx;
         l_new_components[compno + 2U].dy   = original->comps[compno].dy;
         l_new_components[compno + 2U].h    = original->comps[compno].h;
@@ -1196,7 +1193,6 @@ static opj_image_t* upsample_image_components(opj_image_t* original)
         opj_image_cmptparm_t* l_new_cmp = &(l_new_components[compno]);
         opj_image_comp_t*     l_org_cmp = &(original->comps[compno]);
 
-        l_new_cmp->bpp  = l_org_cmp->bpp;
         l_new_cmp->prec = l_org_cmp->prec;
         l_new_cmp->sgnd = l_org_cmp->sgnd;
         l_new_cmp->x0   = original->x0;