NPAPI:DrawImage: Difference between revisions

NPAPI:DrawImage (view source)

Revision as of 18:08, 27 April 2010

413 bytes removed , 27 April 2010

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Josh

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@@ Line 37: / Line 37: @@
 = Event Structure =
-= Drawing Image Event =
+  typedef enum {
+    NPImageFormatARGB32     = 0,  /* a8r8g8b8 */
+    NPImageFormatRGB24      = 2,  /* x8r8g8b8 */
+    NPImageFormatRGB16_565  = 3   /* r5g6b5   */
+    ...
+  } NPImageFormat;
-For documentation on negotiating event type, see Plugins:IndependentEventModel.
+  typedef struct _NPImageData
-The drawing image type variable for Platform independent image rendering is:
+  {
+    /* Image data parameters */
+    char*         data;       /* image pointer */
+    int32_t       stride;     /* Stride of data image pointer */
+    NPImageFormat format;     /* Format of image pointer */
+    NPSize        dataSize;   /* Data buffer size */
+    /* Clip rectangle, must be used for trusted plugins */
+    int32_t       x;      /* Expose x relative to 0,0 of plugin window area*/
+    int32_t       y;      /* Expose y relative to 0,0 of plugin window area */
+    uint32_t      width;  /* Expose width */
+    uint32_t      height; /* Expose height */
+    /* Position and scale values for plugin area */
+    float         translateX; /* translate X matrix value, (x offset) */
+    float         translateY; /* translate Y matrix value, (y offset) */
+    /* Defines plugin window size on scaled context, if 1 then size = window size */
+    float         scaleX;     /* scale X matrix value */
+    float         scaleY;     /* scale Y matrix value */
+  } NPImageData;
- * NPEventType_DrawImage
+= NPImageFormat type negotiation =
-Using NPImageData structure as event
-where NPImageData:
-<pre>
-typedef struct _NPImageData
-{
-  /* Image data parameters */
-  char*         data;       /* image pointer */
-  int32_t       stride;     /* Stride of data image pointer */
-  NPImageFormat format;     /* Format of image pointer */
-  NPSize        dataSize;   /* Data buffer size */
-  /* Clip rectangle, must be used for trusted plugins */
-  int32_t       x;          /* Expose x relative to 0,0 of plugin window area*/
-  int32_t       y;          /* Expose y relative to 0,0 of plugin window area */
-  uint32_t      width;      /* Expose width */
-  uint32_t      height;     /* Expose height */
-  /* Position and scale values for plugin area */
-  float         translateX; /* translate X matrix value, (x offset) */
-  float         translateY; /* translate Y matrix value, (y offset) */
-  /* Defines plugin window size on scaled context, if 1 then size = window size */
-  float         scaleX;     /* scale X matrix value */
-  float         scaleY;     /* scale Y matrix value */
-} NPImageData;
-</pre>
-where NPImageFormat (similar to the current Cairo image format list):
-<pre>
-typedef enum {
-  NPImageFormatARGB32     = 0x0001,     /* a8r8g8b8 */
-  NPImageFormatRGB24      = 0x0002,     /* x8r8g8b8 */
-  NPImageFormatRGB16_565  = 0x0004      /* r5g6b5   */
-  ......
-  More formats could be added here if needed
-  ......
-} NPImageFormat;
-</pre>
-=== NPImageFormat type negotiation ===
 <pre>