35 * examines some of the private fields of the DirectColorModel
36 * object and decodes the red, green, blue, and possibly alpha values
37 * directly rather than calling the getRGB method on the Java object.
38 */
39
40 /*
41 * These definitions vector the standard macro names to the "DCM8"
42 * versions of those macros only if the "DecodeDeclared" keyword has
43 * not yet been defined elsewhere. The "DecodeDeclared" keyword is
44 * also defined here to claim ownership of the primary implementation
45 * even though this file does not rely on the definitions in any other
46 * files.
47 */
48 #ifndef DecodeDeclared
49 #define DeclareDecodeVars DeclareDCM8Vars
50 #define InitPixelDecode(CM) InitPixelDCM8(unhand(CM))
51 #define PixelDecode PixelDCM8Decode
52 #define DecodeDeclared
53 #endif
54
55 #include "java_awt_image_DirectColorModel.h"
56
57 #define DeclareDCM8Vars \
58 IfAlpha(unsigned int alpha_off;) \
59 unsigned int red_off, green_off, blue_off;
60
61 #define InitPixelDCM8(CM) \
62 do { \
63 Classjava_awt_image_DirectColorModel *dcm = \
64 (Classjava_awt_image_DirectColorModel *) CM; \
65 red_off = dcm->red_offset; \
66 green_off = dcm->green_offset; \
67 blue_off = dcm->blue_offset; \
68 IfAlpha(alpha_off = (dcm->alpha_mask == 0 \
69 ? -1 \
70 : dcm->alpha_offset);) \
71 } while (0)
72
73 #define PixelDCM8Decode(CM, pixel, red, green, blue, alpha) \
74 do { \
75 IfAlpha(alpha = ((alpha_off < 0) \
76 ? 255 \
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35 * examines some of the private fields of the DirectColorModel
36 * object and decodes the red, green, blue, and possibly alpha values
37 * directly rather than calling the getRGB method on the Java object.
38 */
39
40 /*
41 * These definitions vector the standard macro names to the "DCM8"
42 * versions of those macros only if the "DecodeDeclared" keyword has
43 * not yet been defined elsewhere. The "DecodeDeclared" keyword is
44 * also defined here to claim ownership of the primary implementation
45 * even though this file does not rely on the definitions in any other
46 * files.
47 */
48 #ifndef DecodeDeclared
49 #define DeclareDecodeVars DeclareDCM8Vars
50 #define InitPixelDecode(CM) InitPixelDCM8(unhand(CM))
51 #define PixelDecode PixelDCM8Decode
52 #define DecodeDeclared
53 #endif
54
55 #define DeclareDCM8Vars \
56 IfAlpha(unsigned int alpha_off;) \
57 unsigned int red_off, green_off, blue_off;
58
59 #define InitPixelDCM8(CM) \
60 do { \
61 Classjava_awt_image_DirectColorModel *dcm = \
62 (Classjava_awt_image_DirectColorModel *) CM; \
63 red_off = dcm->red_offset; \
64 green_off = dcm->green_offset; \
65 blue_off = dcm->blue_offset; \
66 IfAlpha(alpha_off = (dcm->alpha_mask == 0 \
67 ? -1 \
68 : dcm->alpha_offset);) \
69 } while (0)
70
71 #define PixelDCM8Decode(CM, pixel, red, green, blue, alpha) \
72 do { \
73 IfAlpha(alpha = ((alpha_off < 0) \
74 ? 255 \
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