diff options
| author | Ithamar R. Adema <ithamar@game3dee.com> | 2022-09-12 21:04:46 +0200 |
|---|---|---|
| committer | Ithamar R. Adema <ithamar@game3dee.com> | 2022-09-12 21:04:46 +0200 |
| commit | 200f6ac0894982b31c59acc11cd5f8d4f8971219 (patch) | |
| tree | 96c43620814cb01ff9d4ea5ab44cc86c6f378063 /modules/tga | |
| parent | 44c55ad59b01dbf360777b1a9a18a229aeb1f4f7 (diff) | |
Add 16-bits TGA support
Diffstat (limited to 'modules/tga')
| -rw-r--r-- | modules/tga/image_loader_tga.cpp | 25 | ||||
| -rw-r--r-- | modules/tga/image_loader_tga.h | 2 |
2 files changed, 25 insertions, 2 deletions
diff --git a/modules/tga/image_loader_tga.cpp b/modules/tga/image_loader_tga.cpp index 16d9bf7b93..30e7ea30f6 100644 --- a/modules/tga/image_loader_tga.cpp +++ b/modules/tga/image_loader_tga.cpp @@ -100,7 +100,7 @@ Error ImageLoaderTGA::convert_to_image(Ref<Image> p_image, const uint8_t *p_buff uint32_t width = p_header.image_width; uint32_t height = p_header.image_height; tga_origin_e origin = static_cast<tga_origin_e>((p_header.image_descriptor & TGA_ORIGIN_MASK) >> TGA_ORIGIN_SHIFT); - + uint8_t alpha_bits = p_header.image_descriptor & TGA_IMAGE_DESCRIPTOR_ALPHA_MASK; uint32_t x_start; int32_t x_step; uint32_t x_end; @@ -184,6 +184,27 @@ Error ImageLoaderTGA::convert_to_image(Ref<Image> p_image, const uint8_t *p_buff y += y_step; } } + } else if (p_header.pixel_depth == 16) { + while (y != y_end) { + while (x != x_end) { + if (i + 1 >= p_input_size) { + return ERR_PARSE_ERROR; + } + + // Always stored as RGBA5551 + uint8_t r = (p_buffer[i + 1] & 0x7c) << 1; + uint8_t g = ((p_buffer[i + 1] & 0x03) << 6) | ((p_buffer[i + 0] & 0xe0) >> 2); + uint8_t b = (p_buffer[i + 0] & 0x1f) << 3; + uint8_t a = (p_buffer[i + 1] & 0x80) ? 0xff : 0; + + TGA_PUT_PIXEL(r, g, b, alpha_bits ? a : 0xff); + + x += x_step; + i += 2; + } + x = x_start; + y += y_step; + } } else if (p_header.pixel_depth == 24) { while (y != y_end) { while (x != x_end) { @@ -277,7 +298,7 @@ Error ImageLoaderTGA::load_image(Ref<Image> p_image, Ref<FileAccess> f, uint32_t err = FAILED; } - if (!(tga_header.pixel_depth == 8 || tga_header.pixel_depth == 24 || tga_header.pixel_depth == 32)) { + if (!(tga_header.pixel_depth == 8 || tga_header.pixel_depth == 16 || tga_header.pixel_depth == 24 || tga_header.pixel_depth == 32)) { err = FAILED; } diff --git a/modules/tga/image_loader_tga.h b/modules/tga/image_loader_tga.h index d95c5ff30b..ce13316198 100644 --- a/modules/tga/image_loader_tga.h +++ b/modules/tga/image_loader_tga.h @@ -33,6 +33,8 @@ #include "core/io/image_loader.h" +#define TGA_IMAGE_DESCRIPTOR_ALPHA_MASK 0xf + class ImageLoaderTGA : public ImageFormatLoader { enum tga_type_e { TGA_TYPE_NO_DATA = 0, |