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tinyexr: Sync with upstream 65f9859 

(cherry picked from commit 9ce6588466)
This commit is contained in:
Rémi Verschelde 2019-03-04 14:33:42 +01:00
parent 2e18a4acdf
commit 069c4908c8
2 changed files with 161 additions and 63 deletions
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2
thirdparty/README.md vendored
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@ -450,7 +450,7 @@ are provided to reapply them.
## tinyexr
- Upstream: https://github.com/syoyo/tinyexr
- Version: git (5ae30aa, 2018)
- Version: git (65f9859, 2018)
- License: BSD-3-Clause
Files extracted from upstream source:

102
thirdparty/tinyexr/tinyexr.h vendored
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@ -273,6 +273,12 @@ typedef struct _DeepImage {
extern int LoadEXR(float **out_rgba, int *width, int *height,
const char *filename, const char **err);
// @deprecated { to be removed. }
// Simple wrapper API for ParseEXRHeaderFromFile.
// checking given file is a EXR file(by just look up header)
// @return TINYEXR_SUCCEES for EXR image, TINYEXR_ERROR_INVALID_HEADER for others
extern int IsEXR(const char *filename);
// @deprecated { to be removed. }
// Saves single-frame OpenEXR image. Assume EXR image contains RGB(A) channels.
// components must be 1(Grayscale), 3(RGB) or 4(RGBA).
@ -6998,6 +7004,10 @@ static void swap2(unsigned short *val) {
#endif
}
#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wunused-function"
#endif
static void cpy4(int *dst_val, const int *src_val) {
unsigned char *dst = reinterpret_cast<unsigned char *>(dst_val);
const unsigned char *src = reinterpret_cast<const unsigned char *>(src_val);
@ -7028,6 +7038,10 @@ static void cpy4(float *dst_val, const float *src_val) {
dst[3] = src[3];
}
#ifdef __clang__
#pragma clang diagnostic pop
#endif
static void swap4(unsigned int *val) {
#ifdef MINIZ_LITTLE_ENDIAN
(void)val;
@ -8840,7 +8854,8 @@ static bool getCode(int po, int rlc, long long &c, int &lc, const char *&in,
if (out + cs > oe) return false;
// Bounds check for safety
if ((out - 1) <= ob) return false;
// Issue 100.
if ((out - 1) < ob) return false;
unsigned short s = out[-1];
while (cs-- > 0) *out++ = s;
@ -10721,6 +10736,15 @@ static int DecodeChunk(EXRImage *exr_image, const EXRHeader *exr_header,
int data_width = exr_header->data_window[2] - exr_header->data_window[0] + 1;
int data_height = exr_header->data_window[3] - exr_header->data_window[1] + 1;
if ((data_width < 0) || (data_height < 0)) {
if (err) {
std::stringstream ss;
ss << "Invalid data width or data height: " << data_width << ", " << data_height << std::endl;
(*err) += ss.str();
}
return TINYEXR_ERROR_INVALID_DATA;
}
size_t num_blocks = offsets.size();
std::vector<size_t> channel_offset_list;
@ -10816,6 +10840,17 @@ static int DecodeChunk(EXRImage *exr_image, const EXRHeader *exr_header,
}
} else { // scanline format
// Don't allow too large image(256GB * pixel_data_size or more). Workaround for #104.
size_t data_len = size_t(data_width) * size_t(data_height) * size_t(num_channels);
if ((data_len == 0) || (data_len >= 0x4000000000)) {
if (err) {
std::stringstream ss;
ss << "Image data size is zero or too large: width = " << data_width << ", height = " << data_height << ", channels = " << num_channels << std::endl;
(*err) += ss.str();
}
return TINYEXR_ERROR_INVALID_DATA;
}
exr_image->images = tinyexr::AllocateImage(
num_channels, exr_header->channels, exr_header->requested_pixel_types,
data_width, data_height);
@ -11155,7 +11190,6 @@ int LoadEXR(float **out_rgba, int *width, int *height, const char *filename,
static_cast<size_t>(exr_image.height)));
if (exr_header.tiled) {
// todo.implement this
for (int it = 0; it < exr_image.num_tiles; it++) {
for (int j = 0; j < exr_header.tile_size_y; j++) {
@ -11284,6 +11318,17 @@ int LoadEXR(float **out_rgba, int *width, int *height, const char *filename,
return TINYEXR_SUCCESS;
}
int IsEXR(const char *filename) {
EXRVersion exr_version;
int ret = ParseEXRVersionFromFile(&exr_version, filename);
if (ret != TINYEXR_SUCCESS) {
return TINYEXR_ERROR_INVALID_HEADER;
}
return TINYEXR_SUCCESS;
}
int ParseEXRHeaderFromMemory(EXRHeader *exr_header, const EXRVersion *version,
const unsigned char *memory, size_t size,
const char **err) {
@ -11380,6 +11425,58 @@ int LoadEXRFromMemory(float **out_rgba, int *width, int *height,
}
}
// TODO(syoyo): Refactor removing same code as used in LoadEXR().
if (exr_header.num_channels == 1) {
// Grayscale channel only.
(*out_rgba) = reinterpret_cast<float *>(
malloc(4 * sizeof(float) * static_cast<size_t>(exr_image.width) *
static_cast<size_t>(exr_image.height)));
if (exr_header.tiled) {
for (int it = 0; it < exr_image.num_tiles; it++) {
for (int j = 0; j < exr_header.tile_size_y; j++) {
for (int i = 0; i < exr_header.tile_size_x; i++) {
const int ii =
exr_image.tiles[it].offset_x * exr_header.tile_size_x + i;
const int jj =
exr_image.tiles[it].offset_y * exr_header.tile_size_y + j;
const int idx = ii + jj * exr_image.width;
// out of region check.
if (ii >= exr_image.width) {
continue;
}
if (jj >= exr_image.height) {
continue;
}
const int srcIdx = i + j * exr_header.tile_size_x;
unsigned char **src = exr_image.tiles[it].images;
(*out_rgba)[4 * idx + 0] =
reinterpret_cast<float **>(src)[0][srcIdx];
(*out_rgba)[4 * idx + 1] =
reinterpret_cast<float **>(src)[0][srcIdx];
(*out_rgba)[4 * idx + 2] =
reinterpret_cast<float **>(src)[0][srcIdx];
(*out_rgba)[4 * idx + 3] =
reinterpret_cast<float **>(src)[0][srcIdx];
}
}
}
} else {
for (int i = 0; i < exr_image.width * exr_image.height; i++) {
const float val = reinterpret_cast<float **>(exr_image.images)[0][i];
(*out_rgba)[4 * i + 0] = val;
(*out_rgba)[4 * i + 1] = val;
(*out_rgba)[4 * i + 2] = val;
(*out_rgba)[4 * i + 3] = val;
}
}
} else {
// TODO(syoyo): Support non RGBA image.
if (idxR == -1) {
tinyexr::SetErrorMessage("R channel not found", err);
@ -11452,6 +11549,7 @@ int LoadEXRFromMemory(float **out_rgba, int *width, int *height,
}
}
}
}
(*width) = exr_image.width;
(*height) = exr_image.height;