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authorNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
committerNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
commite0c6872cf40896c7be36b11dcc744620f10adf1d (patch)
tree60335e10d2f4354b0674ec22d7b53f0f8abee672 /graphics/sam2p/in_bmp.cpp
Initial commit
Diffstat (limited to 'graphics/sam2p/in_bmp.cpp')
-rw-r--r--graphics/sam2p/in_bmp.cpp49
1 files changed, 49 insertions, 0 deletions
diff --git a/graphics/sam2p/in_bmp.cpp b/graphics/sam2p/in_bmp.cpp
new file mode 100644
index 0000000000..6a683b23bc
--- /dev/null
+++ b/graphics/sam2p/in_bmp.cpp
@@ -0,0 +1,49 @@
+/*
+ * in_bmp.cpp -- read a Windows(?) BMP bitmap file
+ * by pts@fazekas.hu at Sat Mar 2 00:46:54 CET 2002
+ *
+ */
+
+#ifdef __GNUC__
+#ifndef __clang__
+#pragma implementation
+#endif
+#endif
+
+#include "image.hpp"
+#include "error.hpp"
+
+#if USE_IN_BMP
+
+#include "gensio.hpp"
+#include "input-bmp.ci"
+
+static Image::Sampled *in_bmp_reader(Image::Loader::UFD *ufd, SimBuffer::Flat const&) {
+ Image::Sampled *ret=0;
+ bitmap_type bitmap=bmp_load_image(((Filter::UngetFILED*)ufd)->getFILE(/*seekable:*/false));
+ /* Imp: Work without duplicated memory allocation */
+ if (BITMAP_PLANES(bitmap)==1) {
+ Image::Gray *img=new Image::Gray(BITMAP_WIDTH(bitmap), BITMAP_HEIGHT(bitmap), 8);
+ memcpy(img->getRowbeg(), BITMAP_BITS(bitmap), (slen_t)BITMAP_WIDTH(bitmap)*BITMAP_HEIGHT(bitmap));
+ ret=img;
+ } else if (BITMAP_PLANES(bitmap)==3) {
+ Image::RGB *img=new Image::RGB(BITMAP_WIDTH(bitmap), BITMAP_HEIGHT(bitmap), 8);
+ memcpy(img->getRowbeg(), BITMAP_BITS(bitmap), (slen_t)3*BITMAP_WIDTH(bitmap)*BITMAP_HEIGHT(bitmap));
+ ret=img;
+ } else assert(0 && "invalid BMP depth");
+ delete [] BITMAP_BITS(bitmap);
+ return ret;
+}
+
+static Image::Loader::reader_t in_bmp_checker(char buf[Image::Loader::MAGIC_LEN], char [Image::Loader::MAGIC_LEN], SimBuffer::Flat const&, Image::Loader::UFD*) {
+ return (buf[0]=='B' && buf[1]=='M'
+ && buf[6]==0 && buf[7]==0 && buf[8]==0 && buf[9]==0
+ && (unsigned char)(buf[14])<=64 && buf[15]==0 && buf[16]==0 && buf[17]==0)
+ ? in_bmp_reader : 0;
+}
+
+#else
+#define in_bmp_checker NULLP
+#endif /* USE_IN_BMP */
+
+Image::Loader in_bmp_loader = { "BMP", in_bmp_checker, 0 };