summaryrefslogtreecommitdiff
path: root/utility/image_types.c
diff options
context:
space:
mode:
Diffstat (limited to 'utility/image_types.c')
-rw-r--r--utility/image_types.c71
1 files changed, 0 insertions, 71 deletions
diff --git a/utility/image_types.c b/utility/image_types.c
deleted file mode 100644
index 8fcd94ed..00000000
--- a/utility/image_types.c
+++ /dev/null
@@ -1,71 +0,0 @@
-// Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include <stdint.h>
-#include <string.h>
-
-#include "bmpblk_header.h"
-#include "bmpblk_font.h"
-#include "image_types.h"
-
-/* BMP header, used to validate image requirements
- * See http://en.wikipedia.org/wiki/BMP_file_format
- */
-typedef struct {
- uint8_t CharB; // must be 'B'
- uint8_t CharM; // must be 'M'
- uint32_t Size;
- uint16_t Reserved[2];
- uint32_t ImageOffset;
- uint32_t HeaderSize;
- uint32_t PixelWidth;
- uint32_t PixelHeight;
- uint16_t Planes; // Must be 1 for x86
- uint16_t BitPerPixel; // 1, 4, 8, or 24 for x86
- uint32_t CompressionType; // 0 (none) for x86, 1 (RLE) for arm
- uint32_t ImageSize;
- uint32_t XPixelsPerMeter;
- uint32_t YPixelsPerMeter;
- uint32_t NumberOfColors;
- uint32_t ImportantColors;
-} __attribute__((packed)) BMP_IMAGE_HEADER;
-
-
-ImageFormat identify_image_type(const void *buf, uint32_t bufsize,
- ImageInfo *info) {
-
- if (info)
- info->format = FORMAT_INVALID;
-
- if (bufsize < sizeof(BMP_IMAGE_HEADER) &&
- bufsize < sizeof(FontArrayHeader)) {
- return FORMAT_INVALID;
- }
-
- const BMP_IMAGE_HEADER *bhdr = buf;
- if (bhdr->CharB == 'B' && bhdr->CharM == 'M' &&
- bhdr->Planes == 1 &&
- (bhdr->CompressionType == 0 || bhdr->CompressionType == 1) &&
- (bhdr->BitPerPixel == 1 || bhdr->BitPerPixel == 4 ||
- bhdr->BitPerPixel == 8 || bhdr->BitPerPixel == 24)) {
- if (info) {
- info->format = FORMAT_BMP;
- info->width = bhdr->PixelWidth;
- info->height = bhdr->PixelHeight;
- }
- return FORMAT_BMP;
- }
-
- const FontArrayHeader *fhdr = buf;
- if (0 == memcmp(&fhdr->signature, FONT_SIGNATURE, FONT_SIGNATURE_SIZE) &&
- fhdr->num_entries > 0) {
- if (info)
- info->format = FORMAT_FONT;
- return FORMAT_FONT;
- }
-
- return FORMAT_INVALID;
-}
-
-