Commit: 511467fd3ccab5b930f9e29d0071759723273177
Author: Bastien Montagne
Date:   Thu Aug 27 14:57:43 2015 +0200
Branches: blend-thumbnail
https://developer.blender.org/rB511467fd3ccab5b930f9e29d0071759723273177

Change file thumbnail into a struct (we pack pixel data after the struct).

===================================================================

M       source/blender/blenkernel/BKE_library.h
M       source/blender/blenkernel/BKE_main.h
M       source/blender/blenkernel/intern/library.c
M       source/blender/blenloader/BLO_blend_defs.h
M       source/blender/blenloader/BLO_readfile.h
M       source/blender/blenloader/BLO_writefile.h
M       source/blender/blenloader/intern/readfile.c
M       source/blender/blenloader/intern/writefile.c
M       source/blender/imbuf/intern/thumbs_blend.c
M       source/blender/windowmanager/intern/wm_files.c

===================================================================

diff --git a/source/blender/blenkernel/BKE_library.h 
b/source/blender/blenkernel/BKE_library.h
index c54989f..33aa6c4 100644
--- a/source/blender/blenkernel/BKE_library.h
+++ b/source/blender/blenkernel/BKE_library.h
@@ -38,6 +38,7 @@ extern "C" {
 
 #include "BLI_compiler_attrs.h"
 
+struct BlenThumbnail;
 struct ListBase;
 struct ID;
 struct ImBuf;
@@ -88,8 +89,8 @@ void BKE_main_free(struct Main *mainvar);
 void BKE_main_lock(struct Main *bmain);
 void BKE_main_unlock(struct Main *bmain);
 
-int *BKE_main_thumbnail_from_imbuf(struct Main *bmain, struct ImBuf *img);
-struct ImBuf *BKE_main_thumbnail_to_imbuf(struct Main *bmain, int *data);
+struct BlenThumbnail *BKE_main_thumbnail_from_imbuf(struct Main *bmain, struct 
ImBuf *img);
+struct ImBuf *BKE_main_thumbnail_to_imbuf(struct Main *bmain, struct 
BlenThumbnail *data);
 void BKE_main_thumbnail_create(struct Main *bmain);
 
 void BKE_main_id_tag_idcode(struct Main *mainvar, const short type, const bool 
tag);
diff --git a/source/blender/blenkernel/BKE_main.h 
b/source/blender/blenkernel/BKE_main.h
index 0365281..9736c6d 100644
--- a/source/blender/blenkernel/BKE_main.h
+++ b/source/blender/blenkernel/BKE_main.h
@@ -50,6 +50,12 @@ struct EvaluationContext;
 struct Library;
 struct MainLock;
 
+/* Blender thumbnail, as written on file (width, height, and data as char 
RGBA). */
+/* We pack pixel data after that struct. */
+typedef struct BlenThumbnail {
+       int width, height;
+} BlenThumbnail;
+
 typedef struct Main {
        struct Main *next, *prev;
        char name[1024]; /* 1024 = FILE_MAX */
@@ -59,7 +65,7 @@ typedef struct Main {
        char build_hash[16];  /* hash from buildinfo */
        short recovered;        /* indicate the main->name (file) is the 
recovered one */
 
-       int *blen_thumb;  /* Blender thumbnail, as written on file (width, 
height, and data as char RGBA). */
+       BlenThumbnail *blen_thumb;
        
        struct Library *curlib;
        ListBase scene;
@@ -113,7 +119,7 @@ typedef struct Main {
 
 #define BLEN_THUMB_SIZE 128
 
-#define BLEN_THUMB_MEMSIZE(_x, _y) ((size_t)(2 + (_x) * (_y)) * sizeof(int))
+#define BLEN_THUMB_MEMSIZE(_x, _y) (sizeof(BlenThumbnail) + (size_t)((_x) * 
(_y)) * sizeof(int))
 
 #ifdef __cplusplus
 }
diff --git a/source/blender/blenkernel/intern/library.c 
b/source/blender/blenkernel/intern/library.c
index 7a84141..a7a6c6a 100644
--- a/source/blender/blenkernel/intern/library.c
+++ b/source/blender/blenkernel/intern/library.c
@@ -1178,9 +1178,9 @@ void BKE_main_unlock(struct Main *bmain)
  * @param img ImBuf image to generate thumbnail data from.
  * @return The generated .blend file raw thumbnail data.
  */
-int *BKE_main_thumbnail_from_imbuf(Main *bmain, ImBuf *img)
+BlenThumbnail *BKE_main_thumbnail_from_imbuf(Main *bmain, ImBuf *img)
 {
-       int *data = NULL;
+       BlenThumbnail *data = NULL;
 
        if (bmain) {
                MEM_SAFE_FREE(bmain->blen_thumb);
@@ -1191,9 +1191,9 @@ int *BKE_main_thumbnail_from_imbuf(Main *bmain, ImBuf 
*img)
                data = MEM_mallocN(sz, __func__);
 
                IMB_rect_from_float(img);  /* Just in case... */
-               data[0] = img->x;
-               data[1] = img->y;
-               memcpy(&data[2], img->rect, sz - (sizeof(*data) * 2));
+               data->width = img->x;
+               data->height = img->y;
+               memcpy(&data[1], img->rect, sz - sizeof(*data));
        }
 
        if (bmain) {
@@ -1209,7 +1209,7 @@ int *BKE_main_thumbnail_from_imbuf(Main *bmain, ImBuf 
*img)
  * @param data Raw .blend file thumbnail data.
  * @return An ImBuf from given data, or NULL if invalid.
  */
-ImBuf *BKE_main_thumbnail_to_imbuf(Main *bmain, int *data)
+ImBuf *BKE_main_thumbnail_to_imbuf(Main *bmain, BlenThumbnail *data)
 {
        ImBuf *img = NULL;
 
@@ -1220,8 +1220,8 @@ ImBuf *BKE_main_thumbnail_to_imbuf(Main *bmain, int *data)
        if (data) {
                /* Note: we cannot use IMB_allocFromBuffer(), since it tries to 
dupalloc passed buffer, which will fail
                 *       here (we do not want to pass the first two ints!). */
-               img = IMB_allocImBuf((unsigned int)data[0], (unsigned 
int)data[1], 32, IB_rect | IB_metadata);
-               memcpy(img->rect, &data[2], sizeof(*data) * (size_t)data[0] * 
(size_t)data[1]);
+               img = IMB_allocImBuf((unsigned int)data->width, (unsigned 
int)data->height, 32, IB_rect | IB_metadata);
+               memcpy(img->rect, &data[1], BLEN_THUMB_MEMSIZE(data->width, 
data->height) - sizeof(*data));
        }
 
        return img;
@@ -1235,8 +1235,8 @@ void BKE_main_thumbnail_create(struct Main *bmain)
        MEM_SAFE_FREE(bmain->blen_thumb);
 
        bmain->blen_thumb = MEM_callocN(BLEN_THUMB_MEMSIZE(BLEN_THUMB_SIZE, 
BLEN_THUMB_SIZE), __func__);
-       bmain->blen_thumb[0] = BLEN_THUMB_SIZE;
-       bmain->blen_thumb[1] = BLEN_THUMB_SIZE;
+       bmain->blen_thumb->width = BLEN_THUMB_SIZE;
+       bmain->blen_thumb->height = BLEN_THUMB_SIZE;
 }
 
 /* ***************** ID ************************ */
diff --git a/source/blender/blenloader/BLO_blend_defs.h 
b/source/blender/blenloader/BLO_blend_defs.h
index 44f0fa9..a6b06a0 100644
--- a/source/blender/blenloader/BLO_blend_defs.h
+++ b/source/blender/blenloader/BLO_blend_defs.h
@@ -75,4 +75,6 @@ enum {
        ENDB = BLEND_MAKE_ID('E', 'N', 'D', 'B'),
 };
 
+#define BLEN_THUMB_MEMSIZE_FILE(_x, _y) (sizeof(int) * (size_t)(2 + (_x) * 
(_y)))
+
 #endif  /* __BLO_BLEND_DEFS_H__ */
diff --git a/source/blender/blenloader/BLO_readfile.h 
b/source/blender/blenloader/BLO_readfile.h
index 71e06a8..07872a3 100644
--- a/source/blender/blenloader/BLO_readfile.h
+++ b/source/blender/blenloader/BLO_readfile.h
@@ -36,6 +36,7 @@
 extern "C" {
 #endif
 
+struct BlenThumbnail;
 struct bScreen;
 struct LinkNode;
 struct Main;
@@ -285,7 +286,7 @@ void BLO_update_defaults_startup_blend(struct Main 
*mainvar);
  * @return The raw thumbnail
  *         (MEM-allocated, as stored in file, use 
BKE_main_thumbnail_to_imbuf() to convert it to ImBuf image).
  */
-int *BLO_thumbnail_from_file(const char *filepath);
+struct BlenThumbnail *BLO_thumbnail_from_file(const char *filepath);
 
 #ifdef __cplusplus
 } 
diff --git a/source/blender/blenloader/BLO_writefile.h 
b/source/blender/blenloader/BLO_writefile.h
index 9dde2f0..86e1e07 100644
--- a/source/blender/blenloader/BLO_writefile.h
+++ b/source/blender/blenloader/BLO_writefile.h
@@ -33,11 +33,14 @@
  *  \brief external writefile function prototypes.
  */
 
+struct BlenThumbnail;
 struct MemFile;
 struct Main;
 struct ReportList;
 
-extern int BLO_write_file(struct Main *mainvar, const char *filepath, int 
write_flags, struct ReportList *reports, const int *thumb);
+extern int BLO_write_file(
+        struct Main *mainvar, const char *filepath, int write_flags,
+        struct ReportList *reports, const struct BlenThumbnail *thumb);
 extern int BLO_write_file_mem(struct Main *mainvar, struct MemFile *compare, 
struct MemFile *current, int write_flags);
 
 #endif
diff --git a/source/blender/blenloader/intern/readfile.c 
b/source/blender/blenloader/intern/readfile.c
index 9d3b24e..5b24564 100644
--- a/source/blender/blenloader/intern/readfile.c
+++ b/source/blender/blenloader/intern/readfile.c
@@ -936,7 +936,7 @@ static int *read_file_thumbnail(FileData *fd)
                                BLI_endian_switch_int32(&data[1]);
                        }
 
-                       if (bhead->len < BLEN_THUMB_MEMSIZE(data[0], data[1])) {
+                       if (bhead->len < BLEN_THUMB_MEMSIZE_FILE(data[0], 
data[1])) {
                                break;
                        }
 
@@ -1352,18 +1352,23 @@ bool BLO_library_path_explode(const char *path, char 
*r_dir, char **r_group, cha
        return true;
 }
 
-int *BLO_thumbnail_from_file(const char *filepath)
+BlenThumbnail *BLO_thumbnail_from_file(const char *filepath)
 {
        FileData *fd;
-       int *fd_data, *data;
+       BlenThumbnail *data;
+       int *fd_data;
 
        fd = blo_openblenderfile_minimal(filepath);
        fd_data = fd ? read_file_thumbnail(fd) : NULL;
 
        if (fd_data) {
-               const size_t data_size = BLEN_THUMB_MEMSIZE(fd_data[0], 
fd_data[1]);
-               data = MEM_mallocN(data_size, __func__);
-               memcpy(data, fd_data, data_size);
+               const size_t sz = BLEN_THUMB_MEMSIZE(fd_data[0], fd_data[1]);
+               data = MEM_mallocN(sz, __func__);
+
+               BLI_assert((sz - sizeof(*data)) == 
(BLEN_THUMB_MEMSIZE_FILE(fd_data[0], fd_data[1]) - (sizeof(*fd_data) * 2)));
+               data->width = fd_data[0];
+               data->height = fd_data[1];
+               memcpy(&data[1], &fd_data[2], sz - sizeof(*data));
        }
        else {
                data = NULL;
@@ -8265,10 +8270,14 @@ BlendFileData *blo_read_file_internal(FileData *fd, 
const char *filepath)
                const int *data = read_file_thumbnail(fd);
 
                if (data) {
-                       const size_t data_size = BLEN_THUMB_MEMSIZE(data[0], 
data[1]);
-
-                       bfd->main->blen_thumb = MEM_mallocN(data_size, 
__func__);
-                       memcpy(bfd->main->blen_thumb, data, data_size);
+                       const size_t sz = BLEN_THUMB_MEMSIZE(data[0], data[1]);
+                       bfd->main->blen_thumb = MEM_mallocN(sz, __func__);
+
+                       BLI_assert((sz - sizeof(*bfd->main->blen_thumb)) ==
+                                  (BLEN_THUMB_MEMSIZE_FILE(data[0], data[1]) - 
(sizeof(*data) * 2)));
+                       bfd->main->blen_thumb->width = data[0];
+                       bfd->main->blen_thumb->height = data[1];
+                       memcpy(&bfd->main->blen_thumb[1], &data[2], sz - 
sizeof(*bfd->main->blen_thumb));
                }
        }
 
diff --git a/source/blender/blenloader/intern/writefile.c 
b/source/blender/blenloader/intern/writefile.c
index 2dfb100..7cb6913 100644
--- a/source/blender/blenloader/intern/writefile.c
+++ b/source/blender/blenloader/intern/writefile.c
@@ -3688,10 +3688,18 @@ static void write_global(WriteData *wd, int fileflags, 
Main *mainvar)
  * second are an RGBA image (unsigned char)
  * note, this uses 'TEST' since new types will segfault on file load for older 
blender versions.
  */
-static void write_thumb(WriteData *wd, const int *img)
+static void write_thumb(WriteData *wd, const BlenThumbnail *thumb)
 {
-       if (img)
-               writedata(wd, TEST, (2 + img[0] * img[1]) * sizeof(int), img);
+       if (thumb) {
+               size_t sz = BLEN_THUMB_MEMSIZE_FILE(thumb->width, 
thumb->height);
+               int *img = alloca(sz);
+
+               BLI_assert((sz - (sizeof(*img) * 2)) == 
(BLEN_THUMB_MEMSIZE(thumb->width, thumb->height) - sizeof(thumb)));
+               img[0] = thumb->width;
+               img[1] = thumb->height;
+               memcpy(&img[2], &thumb[1], sz - (sizeof(*img) * 2));
+               writedata(wd, TEST, sz, img);
+       }
 }
 
 /* if MemFile * there's filesave to memory */
@@ -3699,7 +3707,7 @@ static int write_file_handle(
         Main *mainvar,
         WriteWrap *ww,
         MemFile *compare, MemFile *current,
-        int write_user_block, int write_flags, const int *thumb)
+        int write_user_block, int write_

@@ Diff output truncated at 10240 characters. @@

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