Add wuffs_base__pixel_buffer__set_from_table
diff --git a/internal/cgen/base/image-public.h b/internal/cgen/base/image-public.h
index 29cce4e..9961d73 100644
--- a/internal/cgen/base/image-public.h
+++ b/internal/cgen/base/image-public.h
@@ -908,6 +908,8 @@
#ifdef __cplusplus
inline wuffs_base__status set_from_slice(wuffs_base__pixel_config* pixcfg,
wuffs_base__slice_u8 pixbuf_memory);
+ inline wuffs_base__status set_from_table(wuffs_base__pixel_config* pixcfg,
+ wuffs_base__table_u8 pixbuf_memory);
inline wuffs_base__slice_u8 palette();
inline wuffs_base__pixel_format pixel_format() const;
inline wuffs_base__table_u8 plane(uint32_t p);
@@ -991,6 +993,38 @@
return NULL;
}
+static inline wuffs_base__status //
+wuffs_base__pixel_buffer__set_from_table(wuffs_base__pixel_buffer* b,
+ wuffs_base__pixel_config* pixcfg,
+ wuffs_base__table_u8 pixbuf_memory) {
+ if (!b) {
+ return wuffs_base__error__bad_receiver;
+ }
+ memset(b, 0, sizeof(*b));
+ if (!pixcfg ||
+ wuffs_base__pixel_format__is_planar(pixcfg->private_impl.pixfmt)) {
+ return wuffs_base__error__bad_argument;
+ }
+ uint32_t bits_per_pixel =
+ wuffs_base__pixel_format__bits_per_pixel(pixcfg->private_impl.pixfmt);
+ if ((bits_per_pixel == 0) || ((bits_per_pixel % 8) != 0)) {
+ // TODO: support fraction-of-byte pixels, e.g. 1 bit per pixel?
+ return wuffs_base__error__unsupported_option;
+ }
+ uint64_t bytes_per_pixel = bits_per_pixel / 8;
+
+ uint64_t width_in_bytes =
+ ((uint64_t)pixcfg->private_impl.width) * bytes_per_pixel;
+ if ((width_in_bytes > pixbuf_memory.width) ||
+ (pixcfg->private_impl.height > pixbuf_memory.height)) {
+ return wuffs_base__error__bad_argument;
+ }
+
+ b->pixcfg = *pixcfg;
+ b->private_impl.planes[0] = pixbuf_memory;
+ return NULL;
+}
+
// wuffs_base__pixel_buffer__palette returns the palette color data. If
// non-empty, it will have length 1024.
static inline wuffs_base__slice_u8 //
@@ -1036,6 +1070,12 @@
return wuffs_base__pixel_buffer__set_from_slice(this, pixcfg, pixbuf_memory);
}
+inline wuffs_base__status //
+wuffs_base__pixel_buffer::set_from_table(wuffs_base__pixel_config* pixcfg,
+ wuffs_base__table_u8 pixbuf_memory) {
+ return wuffs_base__pixel_buffer__set_from_table(this, pixcfg, pixbuf_memory);
+}
+
inline wuffs_base__slice_u8 //
wuffs_base__pixel_buffer::palette() {
return wuffs_base__pixel_buffer__palette(this);
diff --git a/internal/cgen/data.go b/internal/cgen/data.go
index 37b62df..188ee94 100644
--- a/internal/cgen/data.go
+++ b/internal/cgen/data.go
@@ -146,12 +146,13 @@
"ase__frame_config::bounds() const {\n return wuffs_base__frame_config__bounds(this);\n}\n\ninline uint32_t //\nwuffs_base__frame_config::width() const {\n return wuffs_base__frame_config__width(this);\n}\n\ninline uint32_t //\nwuffs_base__frame_config::height() const {\n return wuffs_base__frame_config__height(this);\n}\n\ninline wuffs_base__flicks //\nwuffs_base__frame_config::duration() const {\n return wuffs_base__frame_config__duration(this);\n}\n\ninline uint64_t //\nwuffs_base__frame_config::index() const {\n return wuffs_base__frame_config__index(this);\n}\n\ninline uint64_t //\nwuffs_base__frame_config::io_position() const {\n return wuffs_base__frame_config__io_position(this);\n}\n\ninline wuffs_base__animation_blend //\nwuffs_base__frame_config::blend() const {\n return wuffs_base__frame_config__blend(this);\n}\n\ninline wuffs_base__animation_disposal //\nwuffs_base__frame_config::disposal() const {\n return wuffs_base__frame_config__disposal(this);\n}\n\ninline wuffs_base__color_u32_argb_premul //\nwuffs_base__frame_confi" +
"g::background_color() const {\n return wuffs_base__frame_config__background_color(this);\n}\n\n#endif // __cplusplus\n\n" +
"" +
- "// --------\n\ntypedef struct {\n wuffs_base__pixel_config pixcfg;\n\n // Do not access the private_impl's fields directly. There is no API/ABI\n // compatibility or safety guarantee if you do so.\n struct {\n wuffs_base__table_u8 planes[WUFFS_BASE__PIXEL_FORMAT__NUM_PLANES_MAX];\n // TODO: color spaces.\n } private_impl;\n\n#ifdef __cplusplus\n inline wuffs_base__status set_from_slice(wuffs_base__pixel_config* pixcfg,\n wuffs_base__slice_u8 pixbuf_memory);\n inline wuffs_base__slice_u8 palette();\n inline wuffs_base__pixel_format pixel_format() const;\n inline wuffs_base__table_u8 plane(uint32_t p);\n#endif // __cplusplus\n\n} wuffs_base__pixel_buffer;\n\nstatic inline wuffs_base__pixel_buffer //\nwuffs_base__null_pixel_buffer() {\n wuffs_base__pixel_buffer ret;\n ret.pixcfg = wuffs_base__null_pixel_config();\n ret.private_impl.planes[0] = wuffs_base__null_table_u8();\n ret.private_impl.planes[1] = wuffs_base__null_table_u8();\n ret.private_impl.planes[2] = wuffs_base__nul" +
- "l_table_u8();\n ret.private_impl.planes[3] = wuffs_base__null_table_u8();\n return ret;\n}\n\nstatic inline wuffs_base__status //\nwuffs_base__pixel_buffer__set_from_slice(wuffs_base__pixel_buffer* b,\n wuffs_base__pixel_config* pixcfg,\n wuffs_base__slice_u8 pixbuf_memory) {\n if (!b) {\n return wuffs_base__error__bad_receiver;\n }\n memset(b, 0, sizeof(*b));\n if (!pixcfg) {\n return wuffs_base__error__bad_argument;\n }\n if (wuffs_base__pixel_format__is_planar(pixcfg->private_impl.pixfmt)) {\n // TODO: support planar pixel formats, concious of pixel subsampling.\n return wuffs_base__error__unsupported_option;\n }\n uint32_t bits_per_pixel =\n wuffs_base__pixel_format__bits_per_pixel(pixcfg->private_impl.pixfmt);\n if ((bits_per_pixel == 0) || ((bits_per_pixel % 8) != 0)) {\n // TODO: support fraction-of-byte pixels, e.g. 1 bit per pixel?\n return wuffs_base__error__unsupported_option;\n }\n uint64_t bytes_per_pixel =" +
- " bits_per_pixel / 8;\n\n uint8_t* ptr = pixbuf_memory.ptr;\n uint64_t len = pixbuf_memory.len;\n if (wuffs_base__pixel_format__is_indexed(pixcfg->private_impl.pixfmt)) {\n // Split a 1024 byte chunk (256 palette entries × 4 bytes per entry) from\n // the start of pixbuf_memory. We split from the start, not the end, so\n // that the both chunks' pointers have the same alignment as the original\n // pointer, up to an alignment of 1024.\n if (len < 1024) {\n return wuffs_base__error__bad_argument_length_too_short;\n }\n wuffs_base__table_u8* tab =\n &b->private_impl.planes[WUFFS_BASE__PIXEL_FORMAT__INDEXED__COLOR_PLANE];\n tab->ptr = ptr;\n tab->width = 1024;\n tab->height = 1;\n tab->stride = 1024;\n ptr += 1024;\n len -= 1024;\n }\n\n uint64_t wh = ((uint64_t)pixcfg->private_impl.width) *\n ((uint64_t)pixcfg->private_impl.height);\n size_t width = (size_t)(pixcfg->private_impl.width);\n if ((wh > (UINT64_MAX / bytes_per_pixel)) ||\n (width > (SIZE_MAX / byte" +
- "s_per_pixel))) {\n return wuffs_base__error__bad_argument;\n }\n wh *= bytes_per_pixel;\n width *= bytes_per_pixel;\n if (wh > len) {\n return wuffs_base__error__bad_argument_length_too_short;\n }\n\n b->pixcfg = *pixcfg;\n wuffs_base__table_u8* tab = &b->private_impl.planes[0];\n tab->ptr = ptr;\n tab->width = width;\n tab->height = pixcfg->private_impl.height;\n tab->stride = width;\n return NULL;\n}\n\n// wuffs_base__pixel_buffer__palette returns the palette color data. If\n// non-empty, it will have length 1024.\nstatic inline wuffs_base__slice_u8 //\nwuffs_base__pixel_buffer__palette(wuffs_base__pixel_buffer* b) {\n if (b &&\n wuffs_base__pixel_format__is_indexed(b->pixcfg.private_impl.pixfmt)) {\n wuffs_base__table_u8* tab =\n &b->private_impl.planes[WUFFS_BASE__PIXEL_FORMAT__INDEXED__COLOR_PLANE];\n if ((tab->width == 1024) && (tab->height == 1)) {\n return wuffs_base__make_slice_u8(tab->ptr, 1024);\n }\n }\n return wuffs_base__make_slice_u8(NULL, 0);\n}\n\nstatic inline wuffs_base__pixe" +
- "l_format //\nwuffs_base__pixel_buffer__pixel_format(const wuffs_base__pixel_buffer* b) {\n if (b) {\n return b->pixcfg.private_impl.pixfmt;\n }\n return WUFFS_BASE__PIXEL_FORMAT__INVALID;\n}\n\nstatic inline wuffs_base__table_u8 //\nwuffs_base__pixel_buffer__plane(wuffs_base__pixel_buffer* b, uint32_t p) {\n if (b && (p < WUFFS_BASE__PIXEL_FORMAT__NUM_PLANES_MAX)) {\n return b->private_impl.planes[p];\n }\n\n wuffs_base__table_u8 ret;\n ret.ptr = NULL;\n ret.width = 0;\n ret.height = 0;\n ret.stride = 0;\n return ret;\n}\n\n#ifdef __cplusplus\n\ninline wuffs_base__status //\nwuffs_base__pixel_buffer::set_from_slice(wuffs_base__pixel_config* pixcfg,\n wuffs_base__slice_u8 pixbuf_memory) {\n return wuffs_base__pixel_buffer__set_from_slice(this, pixcfg, pixbuf_memory);\n}\n\ninline wuffs_base__slice_u8 //\nwuffs_base__pixel_buffer::palette() {\n return wuffs_base__pixel_buffer__palette(this);\n}\n\ninline wuffs_base__pixel_format //\nwuffs_base__pixel_buffer::pixel_format() const {\n " +
- "return wuffs_base__pixel_buffer__pixel_format(this);\n}\n\ninline wuffs_base__table_u8 //\nwuffs_base__pixel_buffer::plane(uint32_t p) {\n return wuffs_base__pixel_buffer__plane(this, p);\n}\n\n#endif // __cplusplus\n\n" +
+ "// --------\n\ntypedef struct {\n wuffs_base__pixel_config pixcfg;\n\n // Do not access the private_impl's fields directly. There is no API/ABI\n // compatibility or safety guarantee if you do so.\n struct {\n wuffs_base__table_u8 planes[WUFFS_BASE__PIXEL_FORMAT__NUM_PLANES_MAX];\n // TODO: color spaces.\n } private_impl;\n\n#ifdef __cplusplus\n inline wuffs_base__status set_from_slice(wuffs_base__pixel_config* pixcfg,\n wuffs_base__slice_u8 pixbuf_memory);\n inline wuffs_base__status set_from_table(wuffs_base__pixel_config* pixcfg,\n wuffs_base__table_u8 pixbuf_memory);\n inline wuffs_base__slice_u8 palette();\n inline wuffs_base__pixel_format pixel_format() const;\n inline wuffs_base__table_u8 plane(uint32_t p);\n#endif // __cplusplus\n\n} wuffs_base__pixel_buffer;\n\nstatic inline wuffs_base__pixel_buffer //\nwuffs_base__null_pixel_buffer() {\n wuffs_base__pixel_buffer ret;\n ret.pixcfg = wuffs_base__null_pixel_config();\n ret.pri" +
+ "vate_impl.planes[0] = wuffs_base__null_table_u8();\n ret.private_impl.planes[1] = wuffs_base__null_table_u8();\n ret.private_impl.planes[2] = wuffs_base__null_table_u8();\n ret.private_impl.planes[3] = wuffs_base__null_table_u8();\n return ret;\n}\n\nstatic inline wuffs_base__status //\nwuffs_base__pixel_buffer__set_from_slice(wuffs_base__pixel_buffer* b,\n wuffs_base__pixel_config* pixcfg,\n wuffs_base__slice_u8 pixbuf_memory) {\n if (!b) {\n return wuffs_base__error__bad_receiver;\n }\n memset(b, 0, sizeof(*b));\n if (!pixcfg) {\n return wuffs_base__error__bad_argument;\n }\n if (wuffs_base__pixel_format__is_planar(pixcfg->private_impl.pixfmt)) {\n // TODO: support planar pixel formats, concious of pixel subsampling.\n return wuffs_base__error__unsupported_option;\n }\n uint32_t bits_per_pixel =\n wuffs_base__pixel_format__bits_per_pixel(pixcfg->private_impl.pixfmt);\n if ((bits_per_pixel == 0) || ((bits_per_pixel % 8) !=" +
+ " 0)) {\n // TODO: support fraction-of-byte pixels, e.g. 1 bit per pixel?\n return wuffs_base__error__unsupported_option;\n }\n uint64_t bytes_per_pixel = bits_per_pixel / 8;\n\n uint8_t* ptr = pixbuf_memory.ptr;\n uint64_t len = pixbuf_memory.len;\n if (wuffs_base__pixel_format__is_indexed(pixcfg->private_impl.pixfmt)) {\n // Split a 1024 byte chunk (256 palette entries × 4 bytes per entry) from\n // the start of pixbuf_memory. We split from the start, not the end, so\n // that the both chunks' pointers have the same alignment as the original\n // pointer, up to an alignment of 1024.\n if (len < 1024) {\n return wuffs_base__error__bad_argument_length_too_short;\n }\n wuffs_base__table_u8* tab =\n &b->private_impl.planes[WUFFS_BASE__PIXEL_FORMAT__INDEXED__COLOR_PLANE];\n tab->ptr = ptr;\n tab->width = 1024;\n tab->height = 1;\n tab->stride = 1024;\n ptr += 1024;\n len -= 1024;\n }\n\n uint64_t wh = ((uint64_t)pixcfg->private_impl.width) *\n ((uint64_t)pixcfg" +
+ "->private_impl.height);\n size_t width = (size_t)(pixcfg->private_impl.width);\n if ((wh > (UINT64_MAX / bytes_per_pixel)) ||\n (width > (SIZE_MAX / bytes_per_pixel))) {\n return wuffs_base__error__bad_argument;\n }\n wh *= bytes_per_pixel;\n width *= bytes_per_pixel;\n if (wh > len) {\n return wuffs_base__error__bad_argument_length_too_short;\n }\n\n b->pixcfg = *pixcfg;\n wuffs_base__table_u8* tab = &b->private_impl.planes[0];\n tab->ptr = ptr;\n tab->width = width;\n tab->height = pixcfg->private_impl.height;\n tab->stride = width;\n return NULL;\n}\n\nstatic inline wuffs_base__status //\nwuffs_base__pixel_buffer__set_from_table(wuffs_base__pixel_buffer* b,\n wuffs_base__pixel_config* pixcfg,\n wuffs_base__table_u8 pixbuf_memory) {\n if (!b) {\n return wuffs_base__error__bad_receiver;\n }\n memset(b, 0, sizeof(*b));\n if (!pixcfg ||\n wuffs_base__pixel_format__is_planar(pixcfg->private_impl.pixfmt)) {\n return wuffs_b" +
+ "ase__error__bad_argument;\n }\n uint32_t bits_per_pixel =\n wuffs_base__pixel_format__bits_per_pixel(pixcfg->private_impl.pixfmt);\n if ((bits_per_pixel == 0) || ((bits_per_pixel % 8) != 0)) {\n // TODO: support fraction-of-byte pixels, e.g. 1 bit per pixel?\n return wuffs_base__error__unsupported_option;\n }\n uint64_t bytes_per_pixel = bits_per_pixel / 8;\n\n uint64_t width_in_bytes =\n ((uint64_t)pixcfg->private_impl.width) * bytes_per_pixel;\n if ((width_in_bytes > pixbuf_memory.width) ||\n (pixcfg->private_impl.height > pixbuf_memory.height)) {\n return wuffs_base__error__bad_argument;\n }\n\n b->pixcfg = *pixcfg;\n b->private_impl.planes[0] = pixbuf_memory;\n return NULL;\n}\n\n// wuffs_base__pixel_buffer__palette returns the palette color data. If\n// non-empty, it will have length 1024.\nstatic inline wuffs_base__slice_u8 //\nwuffs_base__pixel_buffer__palette(wuffs_base__pixel_buffer* b) {\n if (b &&\n wuffs_base__pixel_format__is_indexed(b->pixcfg.private_impl.pixfmt)) {\n wuffs_base" +
+ "__table_u8* tab =\n &b->private_impl.planes[WUFFS_BASE__PIXEL_FORMAT__INDEXED__COLOR_PLANE];\n if ((tab->width == 1024) && (tab->height == 1)) {\n return wuffs_base__make_slice_u8(tab->ptr, 1024);\n }\n }\n return wuffs_base__make_slice_u8(NULL, 0);\n}\n\nstatic inline wuffs_base__pixel_format //\nwuffs_base__pixel_buffer__pixel_format(const wuffs_base__pixel_buffer* b) {\n if (b) {\n return b->pixcfg.private_impl.pixfmt;\n }\n return WUFFS_BASE__PIXEL_FORMAT__INVALID;\n}\n\nstatic inline wuffs_base__table_u8 //\nwuffs_base__pixel_buffer__plane(wuffs_base__pixel_buffer* b, uint32_t p) {\n if (b && (p < WUFFS_BASE__PIXEL_FORMAT__NUM_PLANES_MAX)) {\n return b->private_impl.planes[p];\n }\n\n wuffs_base__table_u8 ret;\n ret.ptr = NULL;\n ret.width = 0;\n ret.height = 0;\n ret.stride = 0;\n return ret;\n}\n\n#ifdef __cplusplus\n\ninline wuffs_base__status //\nwuffs_base__pixel_buffer::set_from_slice(wuffs_base__pixel_config* pixcfg,\n wuffs_base__slice_u8 pixbuf_memory" +
+ ") {\n return wuffs_base__pixel_buffer__set_from_slice(this, pixcfg, pixbuf_memory);\n}\n\ninline wuffs_base__status //\nwuffs_base__pixel_buffer::set_from_table(wuffs_base__pixel_config* pixcfg,\n wuffs_base__table_u8 pixbuf_memory) {\n return wuffs_base__pixel_buffer__set_from_table(this, pixcfg, pixbuf_memory);\n}\n\ninline wuffs_base__slice_u8 //\nwuffs_base__pixel_buffer::palette() {\n return wuffs_base__pixel_buffer__palette(this);\n}\n\ninline wuffs_base__pixel_format //\nwuffs_base__pixel_buffer::pixel_format() const {\n return wuffs_base__pixel_buffer__pixel_format(this);\n}\n\ninline wuffs_base__table_u8 //\nwuffs_base__pixel_buffer::plane(uint32_t p) {\n return wuffs_base__pixel_buffer__plane(this, p);\n}\n\n#endif // __cplusplus\n\n" +
"" +
"// --------\n\ntypedef struct {\n // Do not access the private_impl's fields directly. There is no API/ABI\n // compatibility or safety guarantee if you do so.\n struct {\n uint8_t TODO;\n } private_impl;\n\n#ifdef __cplusplus\n#endif // __cplusplus\n\n} wuffs_base__decode_frame_options;\n\n#ifdef __cplusplus\n\n#endif // __cplusplus\n\n" +
"" +
diff --git a/release/c/wuffs-unsupported-snapshot.c b/release/c/wuffs-unsupported-snapshot.c
index fa0386c..efe73c2 100644
--- a/release/c/wuffs-unsupported-snapshot.c
+++ b/release/c/wuffs-unsupported-snapshot.c
@@ -2439,6 +2439,8 @@
#ifdef __cplusplus
inline wuffs_base__status set_from_slice(wuffs_base__pixel_config* pixcfg,
wuffs_base__slice_u8 pixbuf_memory);
+ inline wuffs_base__status set_from_table(wuffs_base__pixel_config* pixcfg,
+ wuffs_base__table_u8 pixbuf_memory);
inline wuffs_base__slice_u8 palette();
inline wuffs_base__pixel_format pixel_format() const;
inline wuffs_base__table_u8 plane(uint32_t p);
@@ -2522,6 +2524,38 @@
return NULL;
}
+static inline wuffs_base__status //
+wuffs_base__pixel_buffer__set_from_table(wuffs_base__pixel_buffer* b,
+ wuffs_base__pixel_config* pixcfg,
+ wuffs_base__table_u8 pixbuf_memory) {
+ if (!b) {
+ return wuffs_base__error__bad_receiver;
+ }
+ memset(b, 0, sizeof(*b));
+ if (!pixcfg ||
+ wuffs_base__pixel_format__is_planar(pixcfg->private_impl.pixfmt)) {
+ return wuffs_base__error__bad_argument;
+ }
+ uint32_t bits_per_pixel =
+ wuffs_base__pixel_format__bits_per_pixel(pixcfg->private_impl.pixfmt);
+ if ((bits_per_pixel == 0) || ((bits_per_pixel % 8) != 0)) {
+ // TODO: support fraction-of-byte pixels, e.g. 1 bit per pixel?
+ return wuffs_base__error__unsupported_option;
+ }
+ uint64_t bytes_per_pixel = bits_per_pixel / 8;
+
+ uint64_t width_in_bytes =
+ ((uint64_t)pixcfg->private_impl.width) * bytes_per_pixel;
+ if ((width_in_bytes > pixbuf_memory.width) ||
+ (pixcfg->private_impl.height > pixbuf_memory.height)) {
+ return wuffs_base__error__bad_argument;
+ }
+
+ b->pixcfg = *pixcfg;
+ b->private_impl.planes[0] = pixbuf_memory;
+ return NULL;
+}
+
// wuffs_base__pixel_buffer__palette returns the palette color data. If
// non-empty, it will have length 1024.
static inline wuffs_base__slice_u8 //
@@ -2567,6 +2601,12 @@
return wuffs_base__pixel_buffer__set_from_slice(this, pixcfg, pixbuf_memory);
}
+inline wuffs_base__status //
+wuffs_base__pixel_buffer::set_from_table(wuffs_base__pixel_config* pixcfg,
+ wuffs_base__table_u8 pixbuf_memory) {
+ return wuffs_base__pixel_buffer__set_from_table(this, pixcfg, pixbuf_memory);
+}
+
inline wuffs_base__slice_u8 //
wuffs_base__pixel_buffer::palette() {
return wuffs_base__pixel_buffer__palette(this);
