diff options
| author | Harald Welte <laforge@gnumonks.org> | 2011-07-04 20:52:54 +0200 |
|---|---|---|
| committer | Harald Welte <laforge@gnumonks.org> | 2011-07-04 20:52:54 +0200 |
| commit | 044ad7c3987460ede48ff27afd6bdb0ca05a0432 (patch) | |
| tree | 924818cdb0d39ca08aec540d18da7bd406eaae8c /utility/bmp.h | |
import at91lib from at91lib_20100901_softpack_1_9_v_1_0_svn_v1501120100901_softpack_1_9_v_1_0_svn_v15011
it's sad to see that atmel doesn't publish their svn repo or has
a centralized location or even puts proper version/release info
into the library itself
Diffstat (limited to 'utility/bmp.h')
| -rw-r--r-- | utility/bmp.h | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/utility/bmp.h b/utility/bmp.h new file mode 100644 index 0000000..6adfac3 --- /dev/null +++ b/utility/bmp.h @@ -0,0 +1,130 @@ +/* ----------------------------------------------------------------------------
+ * ATMEL Microcontroller Software Support
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2008, Atmel Corporation
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the disclaimer below.
+ *
+ * Atmel's name may not be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
+ * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
+ * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ----------------------------------------------------------------------------
+ */
+
+//------------------------------------------------------------------------------
+/// \unit
+///
+/// !!!Purpose
+///
+/// Utility for BMP
+///
+//------------------------------------------------------------------------------
+
+#ifndef BMP_H
+#define BMP_H
+
+/// BMP magic number ('BM').
+#define BMP_TYPE 0x4D42
+
+/// headerSize must be set to 40
+#define BITMAPINFOHEADER 40
+
+//------------------------------------------------------------------------------
+// Exported types
+//------------------------------------------------------------------------------
+
+#ifdef __ICCARM__ // IAR
+#pragma pack(1) // IAR
+#define __attribute__(...) // IAR
+#endif // IAR
+
+// BMP (Windows) Header Format
+struct BMPHeader {
+ /// signature, must be 4D42 hex
+ unsigned short type;
+ /// size of BMP file in bytes (unreliable)
+ unsigned int fileSize;
+ /// reserved, must be zero
+ unsigned short reserved1;
+ /// reserved, must be zero
+ unsigned short reserved2;
+ /// offset to start of image data in bytes
+ unsigned int offset;
+ /// size of BITMAPINFOHEADER structure, must be 40
+ unsigned int headerSize;
+ /// image width in pixels
+ unsigned int width;
+ /// image height in pixels
+ unsigned int height;
+ /// number of planes in the image, must be 1
+ unsigned short planes;
+ /// number of bits per pixel (1, 4, 8, 16, 24, 32)
+ unsigned short bits;
+ /// compression type (0=none, 1=RLE-8, 2=RLE-4)
+ unsigned int compression;
+ /// size of image data in bytes (including padding)
+ unsigned int imageSize;
+ /// horizontal resolution in pixels per meter (unreliable)
+ unsigned int xresolution;
+ /// vertical resolution in pixels per meter (unreliable)
+ unsigned int yresolution;
+ /// number of colors in image, or zero
+ unsigned int ncolours;
+ /// number of important colors, or zero
+ unsigned int importantcolours;
+
+} __attribute__ ((packed)); // GCC
+
+#ifdef __ICCARM__ // IAR
+#pragma pack() // IAR
+#endif // IAR
+
+//------------------------------------------------------------------------------
+// Exported functions
+//------------------------------------------------------------------------------
+
+extern unsigned char BMP_IsValid(void *file);
+
+extern unsigned int BMP_GetFileSize(void *file);
+
+extern unsigned char BMP_Decode(
+ void *file,
+ unsigned char *buffer,
+ unsigned int width,
+ unsigned int height,
+ unsigned char bpp);
+
+extern void WriteBMPheader(unsigned int* pAddressHeader,
+ unsigned int bmpHSize,
+ unsigned int bmpVSize,
+ unsigned char bmpRgb,
+ unsigned char nbByte_Pixels);
+
+extern void BMP_displayHeader(unsigned int* pAddressHeader);
+
+extern void RGB565toBGR555(
+ unsigned char *fileSource,
+ unsigned char *fileDestination,
+ unsigned int width,
+ unsigned int height,
+ unsigned char bpp);
+
+
+#endif //#ifndef BMP_H
+
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