diff options
Diffstat (limited to 'modules/tinyexr/image_loader_tinyexr.cpp')
| -rw-r--r-- | modules/tinyexr/image_loader_tinyexr.cpp | 81 |
1 files changed, 70 insertions, 11 deletions
diff --git a/modules/tinyexr/image_loader_tinyexr.cpp b/modules/tinyexr/image_loader_tinyexr.cpp index 0abefe11ee..b19bcfefcb 100644 --- a/modules/tinyexr/image_loader_tinyexr.cpp +++ b/modules/tinyexr/image_loader_tinyexr.cpp @@ -129,15 +129,45 @@ Error ImageLoaderTinyEXR::load_image(Ref<Image> p_image, FileAccess *f, bool p_f PoolVector<uint8_t> imgdata; Image::Format format; + int output_channels = 0; if (idxA > 0) { imgdata.resize(exr_image.width * exr_image.height * 8); //RGBA16 format = Image::FORMAT_RGBAH; + output_channels = 4; } else { imgdata.resize(exr_image.width * exr_image.height * 6); //RGB16 format = Image::FORMAT_RGBH; + output_channels = 3; + } + + EXRTile single_image_tile; + int num_tiles; + int tile_width = 0; + int tile_height = 0; + + const EXRTile *exr_tiles; + + if (!exr_header.tiled) { + single_image_tile.images = exr_image.images; + single_image_tile.width = exr_image.width; + single_image_tile.height = exr_image.height; + single_image_tile.level_x = exr_image.width; + single_image_tile.level_y = exr_image.height; + single_image_tile.offset_x = 0; + single_image_tile.offset_y = 0; + + exr_tiles = &single_image_tile; + num_tiles = 1; + tile_width = exr_image.width; + tile_height = exr_image.height; + } else { + tile_width = exr_header.tile_size_x; + tile_height = exr_header.tile_size_y; + num_tiles = exr_image.num_tiles; + exr_tiles = exr_image.tiles; } { @@ -145,22 +175,51 @@ Error ImageLoaderTinyEXR::load_image(Ref<Image> p_image, FileAccess *f, bool p_f uint16_t *iw = (uint16_t *)wd.ptr(); // Assume `out_rgba` have enough memory allocated. - for (int i = 0; i < exr_image.width * exr_image.height; i++) { + for (int tile_index = 0; tile_index < num_tiles; tile_index++) { - Color color( - reinterpret_cast<float **>(exr_image.images)[idxR][i], - reinterpret_cast<float **>(exr_image.images)[idxG][i], - reinterpret_cast<float **>(exr_image.images)[idxB][i]); + const EXRTile &tile = exr_tiles[tile_index]; - if (p_force_linear) - color = color.to_linear(); + int tw = tile.width; + int th = tile.height; - *iw++ = Math::make_half_float(color.r); - *iw++ = Math::make_half_float(color.g); - *iw++ = Math::make_half_float(color.b); + const float *r_channel_start = reinterpret_cast<const float *>(tile.images[idxR]); + const float *g_channel_start = reinterpret_cast<const float *>(tile.images[idxG]); + const float *b_channel_start = reinterpret_cast<const float *>(tile.images[idxB]); + const float *a_channel_start = NULL; if (idxA > 0) { - *iw++ = Math::make_half_float(reinterpret_cast<float **>(exr_image.images)[idxA][i]); + a_channel_start = reinterpret_cast<const float *>(tile.images[idxA]); + } + + uint16_t *first_row_w = iw + (tile.offset_y * tile_height * exr_image.width + tile.offset_x * tile_width) * output_channels; + + for (int y = 0; y < th; y++) { + const float *r_channel = r_channel_start + y * tile_width; + const float *g_channel = g_channel_start + y * tile_width; + const float *b_channel = b_channel_start + y * tile_width; + const float *a_channel = NULL; + + if (a_channel_start) { + a_channel = a_channel_start + y * tile_width; + } + + uint16_t *row_w = first_row_w + (y * exr_image.width * output_channels); + + for (int x = 0; x < tw; x++) { + + Color color(*r_channel++, *g_channel++, *b_channel++); + + if (p_force_linear) + color = color.to_linear(); + + *row_w++ = Math::make_half_float(color.r); + *row_w++ = Math::make_half_float(color.g); + *row_w++ = Math::make_half_float(color.b); + + if (idxA > 0) { + *row_w++ = Math::make_half_float(*a_channel++); + } + } } } } |