Fix a few harmless maybe uninitialized warnings with GCC 5.4.

GCC seems to detect uninitialized into function calls now, but then isn't
always smart enough to see that it is actually initialized. Disabling this
warning entirely seems a bit too much, so initialize a bit more now.

6 files changed, 9 insertions, 5 deletions

diff --git a/source/blender/blenkernel/intern/image_gen.c b/source/blender/blenkernel/intern/image_gen.c
index 2c8399adece..1f1f4c9d341 100644
--- a/source/blender/blenkernel/intern/image_gen.c
+++ b/source/blender/blenkernel/intern/image_gen.c
@@ -132,7 +132,7 @@ static void image_buf_fill_checker_slice(unsigned char *rect,
 	float hsv[3] = {0.0f, 0.9f, 0.9f};
 	float rgb[3];
 
-	float dark_linear_color, bright_linear_color;
+	float dark_linear_color = 0.0f, bright_linear_color = 0.0f;
 	if (rect_float != NULL) {
 		dark_linear_color = srgb_to_linearrgb(0.25f);
 		bright_linear_color = srgb_to_linearrgb(0.58f);
diff --git a/source/blender/editors/sculpt_paint/paint_image_proj.c b/source/blender/editors/sculpt_paint/paint_image_proj.c
index b43581170d0..162658f01bb 100644
--- a/source/blender/editors/sculpt_paint/paint_image_proj.c
+++ b/source/blender/editors/sculpt_paint/paint_image_proj.c
@@ -4754,6 +4754,9 @@ static void *do_projectpaint_thread(void *ph_v)
 							copy_v3_v3(texrgb, texrgba);
 							mask *= texrgba[3];
 						}
+						else {
+							zero_v3(texrgb);
+						}
 
 						/* extra mask for normal, layer stencil, .. */
 						mask *= ((float)projPixel->mask) * (1.0f / 65535.0f);
diff --git a/source/blender/editors/sculpt_paint/paint_utils.c b/source/blender/editors/sculpt_paint/paint_utils.c
index 31c471c3517..10628d8cccb 100644
--- a/source/blender/editors/sculpt_paint/paint_utils.c
+++ b/source/blender/editors/sculpt_paint/paint_utils.c
@@ -426,7 +426,7 @@ void paint_sample_color(bContext *C, ARegion *ar, int x, int y, bool texpaint_pr
 	Scene *scene = CTX_data_scene(C);
 	Paint *paint = BKE_paint_get_active_from_context(C);
 	Palette *palette = BKE_paint_palette(paint);
-	PaletteColor *color;
+	PaletteColor *color = NULL;
 	Brush *br = BKE_paint_brush(BKE_paint_get_active_from_context(C));
 	unsigned int col;
 	const unsigned char *cp;
diff --git a/source/blender/editors/space_image/image_ops.c b/source/blender/editors/space_image/image_ops.c
index a0d67626940..3c64d1ebb71 100644
--- a/source/blender/editors/space_image/image_ops.c
+++ b/source/blender/editors/space_image/image_ops.c
@@ -1169,6 +1169,7 @@ static int image_sequence_get_len(ListBase *frames, int *ofs)
 		}
 		return frame_curr - (*ofs);
 	}
+	*ofs = 0;
 	return 0;
 }
 
diff --git a/source/blender/imbuf/intern/openexr/openexr_api.cpp b/source/blender/imbuf/intern/openexr/openexr_api.cpp
index ec544e65355..1fa3b943524 100644
--- a/source/blender/imbuf/intern/openexr/openexr_api.cpp
+++ b/source/blender/imbuf/intern/openexr/openexr_api.cpp
@@ -1104,7 +1104,7 @@ void IMB_exr_write_channels(void *handle)
 
 	if (data->channels.first) {
 		const size_t num_pixels = ((size_t)data->width) * data->height;
-		half *rect_half = NULL, *current_rect_half;
+		half *rect_half = NULL, *current_rect_half = NULL;
 
 		/* We allocate teporary storage for half pixels for all the channels at once. */
 		if (data->num_half_channels != 0) {
diff --git a/source/blender/imbuf/intern/rectop.c b/source/blender/imbuf/intern/rectop.c
index 086599a3746..c4325caac91 100644
--- a/source/blender/imbuf/intern/rectop.c
+++ b/source/blender/imbuf/intern/rectop.c
@@ -301,8 +301,8 @@ void IMB_rectblend(ImBuf *dbuf, ImBuf *obuf, ImBuf *sbuf, unsigned short *dmask,
                    int destx,  int desty, int origx, int origy, int srcx, int srcy, int width, int height,
                    IMB_BlendMode mode, bool accumulate)
 {
-	unsigned int *drect = NULL, *orect, *srect = NULL, *dr, *or, *sr;
-	float *drectf = NULL, *orectf, *srectf = NULL, *drf, *orf, *srf;
+	unsigned int *drect = NULL, *orect = NULL, *srect = NULL, *dr, *or, *sr;
+	float *drectf = NULL, *orectf = NULL, *srectf = NULL, *drf, *orf, *srf;
 	unsigned short *cmaskrect = curvemask, *cmr;
 	unsigned short *dmaskrect = dmask, *dmr;
 	unsigned short *texmaskrect = texmask, *tmr;