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changeset 4843:0998d1b5dd23

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Fixed formatting of SDL_shape.c post-merge again.
author Eli Gottlieb <eligottlieb@gmail.com>
date Mon, 09 Aug 2010 20:32:15 -0400
parents c24f71246e5e
children c4f5bcaf7572
files src/video/SDL_shape.c
diffstat 1 files changed, 224 insertions(+), 214 deletions(-) [+]
line wrap: on
line diff
--- a/src/video/SDL_shape.c	Mon Aug 09 20:29:21 2010 -0400
+++ b/src/video/SDL_shape.c	Mon Aug 09 20:32:15 2010 -0400
@@ -30,237 +30,247 @@
 #include "SDL_shape.h"
 #include "SDL_shape_internals.h"
 
-SDL_Window* SDL_CreateShapedWindow(const char *title,unsigned int x,unsigned int y,unsigned int w,unsigned int h,Uint32 flags) {
-	SDL_Window *result = SDL_CreateWindow(title,x,y,w,h,SDL_WINDOW_BORDERLESS | flags & !SDL_WINDOW_FULLSCREEN & !SDL_WINDOW_SHOWN);
-	if(result != NULL) {
-		result->shaper = result->display->device->shape_driver.CreateShaper(result);
-		if(result->shaper != NULL) {
-			result->shaper->usershownflag = flags & SDL_WINDOW_SHOWN;
-			result->shaper->mode.mode = ShapeModeDefault;
-			result->shaper->mode.parameters.binarizationCutoff = 1;
-			result->shaper->hasshape = SDL_FALSE;
-			return result;
-		}
-		else {
-			SDL_DestroyWindow(result);
-			return NULL;
-		}
-	}
-	else
-		return NULL;
+SDL_Window*
+SDL_CreateShapedWindow(const char *title,unsigned int x,unsigned int y,unsigned int w,unsigned int h,Uint32 flags) {
+    SDL_Window *result = SDL_CreateWindow(title,x,y,w,h,SDL_WINDOW_BORDERLESS | flags & !SDL_WINDOW_FULLSCREEN & !SDL_WINDOW_SHOWN);
+    if(result != NULL) {
+        result->shaper = result->display->device->shape_driver.CreateShaper(result);
+        if(result->shaper != NULL) {
+            result->shaper->usershownflag = flags & SDL_WINDOW_SHOWN;
+            result->shaper->mode.mode = ShapeModeDefault;
+            result->shaper->mode.parameters.binarizationCutoff = 1;
+            result->shaper->hasshape = SDL_FALSE;
+            return result;
+        }
+        else {
+            SDL_DestroyWindow(result);
+            return NULL;
+        }
+    }
+    else
+        return NULL;
 }
 
-SDL_bool SDL_IsShapedWindow(const SDL_Window *window) {
-	if(window == NULL)
-		return SDL_FALSE;
-	else
-		return (SDL_bool)(window->shaper != NULL);
+SDL_bool
+SDL_IsShapedWindow(const SDL_Window *window) {
+    if(window == NULL)
+        return SDL_FALSE;
+    else
+        return (SDL_bool)(window->shaper != NULL);
 }
 
 /* REQUIRES that bitmap point to a w-by-h bitmap with ppb pixels-per-byte. */
-void SDL_CalculateShapeBitmap(SDL_WindowShapeMode mode,SDL_Surface *shape,Uint8* bitmap,Uint8 ppb) {
-	int x = 0;
-	int y = 0;
-	Uint8 r = 0,g = 0,b = 0,alpha = 0;
-	Uint8* pixel = NULL;
-	Uint32 bitmap_pixel,pixel_value = 0,mask_value = 0;
-	SDL_Color key;
-	if(SDL_MUSTLOCK(shape))
-		SDL_LockSurface(shape);
-	pixel = (Uint8*)shape->pixels;
-	for(y = 0;y<shape->h;y++) {
-		for(x=0;x<shape->w;x++) {
-			alpha = 0;
-			pixel_value = 0;
-			pixel = (Uint8 *)(shape->pixels) + (y*shape->pitch) + (x*shape->format->BytesPerPixel);
-			switch(shape->format->BytesPerPixel) {
-				case(1):
-					pixel_value = *(Uint8*)pixel;
-					break;
-				case(2):
-					pixel_value = *(Uint16*)pixel;
-					break;
-				case(3):
-					pixel_value = *(Uint32*)pixel & (~shape->format->Amask);
-					break;
-				case(4):
-					pixel_value = *(Uint32*)pixel;
-					break;
-			}
-			SDL_GetRGBA(pixel_value,shape->format,&r,&g,&b,&alpha);
-			bitmap_pixel = y*shape->w + x;
-			switch(mode.mode) {
-				case(ShapeModeDefault):
-					mask_value = (alpha >= 1 ? 1 : 0);
-					break;
-				case(ShapeModeBinarizeAlpha):
-					mask_value = (alpha >= mode.parameters.binarizationCutoff ? 1 : 0);
-					break;
-				case(ShapeModeReverseBinarizeAlpha):
-					mask_value = (alpha <= mode.parameters.binarizationCutoff ? 1 : 0);
-					break;
-				case(ShapeModeColorKey):
-					key = mode.parameters.colorKey;
-					mask_value = ((key.r != r && key.g != g && key.b != b) ? 1 : 0);
-					break;
-			}
-			bitmap[bitmap_pixel / ppb] |= mask_value << (7 - ((ppb - 1) - (bitmap_pixel % ppb)));
-		}
-	}
-	if(SDL_MUSTLOCK(shape))
-		SDL_UnlockSurface(shape);
+void
+SDL_CalculateShapeBitmap(SDL_WindowShapeMode mode,SDL_Surface *shape,Uint8* bitmap,Uint8 ppb) {
+    int x = 0;
+    int y = 0;
+    Uint8 r = 0,g = 0,b = 0,alpha = 0;
+    Uint8* pixel = NULL;
+    Uint32 bitmap_pixel,pixel_value = 0,mask_value = 0;
+    SDL_Color key;
+    if(SDL_MUSTLOCK(shape))
+        SDL_LockSurface(shape);
+    pixel = (Uint8*)shape->pixels;
+    for(y = 0;y<shape->h;y++) {
+        for(x=0;x<shape->w;x++) {
+            alpha = 0;
+            pixel_value = 0;
+            pixel = (Uint8 *)(shape->pixels) + (y*shape->pitch) + (x*shape->format->BytesPerPixel);
+            switch(shape->format->BytesPerPixel) {
+                case(1):
+                    pixel_value = *(Uint8*)pixel;
+                    break;
+                case(2):
+                    pixel_value = *(Uint16*)pixel;
+                    break;
+                case(3):
+                    pixel_value = *(Uint32*)pixel & (~shape->format->Amask);
+                    break;
+                case(4):
+                    pixel_value = *(Uint32*)pixel;
+                    break;
+            }
+            SDL_GetRGBA(pixel_value,shape->format,&r,&g,&b,&alpha);
+            bitmap_pixel = y*shape->w + x;
+            switch(mode.mode) {
+                case(ShapeModeDefault):
+                    mask_value = (alpha >= 1 ? 1 : 0);
+                    break;
+                case(ShapeModeBinarizeAlpha):
+                    mask_value = (alpha >= mode.parameters.binarizationCutoff ? 1 : 0);
+                    break;
+                case(ShapeModeReverseBinarizeAlpha):
+                    mask_value = (alpha <= mode.parameters.binarizationCutoff ? 1 : 0);
+                    break;
+                case(ShapeModeColorKey):
+                    key = mode.parameters.colorKey;
+                    mask_value = ((key.r != r && key.g != g && key.b != b) ? 1 : 0);
+                    break;
+            }
+            bitmap[bitmap_pixel / ppb] |= mask_value << (7 - ((ppb - 1) - (bitmap_pixel % ppb)));
+        }
+    }
+    if(SDL_MUSTLOCK(shape))
+        SDL_UnlockSurface(shape);
 }
 
-SDL_ShapeTree* RecursivelyCalculateShapeTree(SDL_WindowShapeMode mode,SDL_Surface* mask,SDL_Rect dimensions) {
-	int x = 0,y = 0;
-	Uint8* pixel = NULL;
-	Uint32 pixel_value = 0;
-	Uint8 r = 0,g = 0,b = 0,a = 0;
-	SDL_bool pixel_opaque = SDL_FALSE;
-	int last_opaque = -1;
-	SDL_Color key;
-	SDL_ShapeTree* result = (SDL_ShapeTree*)SDL_malloc(sizeof(SDL_ShapeTree));
-	SDL_Rect next = {0,0,0,0};
-	for(y=dimensions.y;y<dimensions.y + dimensions.h;y++)
-		for(x=dimensions.x;x<dimensions.x + dimensions.w;x++) {
-			pixel_value = 0;
-			pixel = (Uint8 *)(mask->pixels) + (y*mask->pitch) + (x*mask->format->BytesPerPixel);
-			switch(mask->format->BytesPerPixel) {
-				case(1):
-					pixel_value = *(Uint8*)pixel;
-					break;
-				case(2):
-					pixel_value = *(Uint16*)pixel;
-					break;
-				case(3):
-					pixel_value = *(Uint32*)pixel & (~mask->format->Amask);
-					break;
-				case(4):
-					pixel_value = *(Uint32*)pixel;
-					break;
-			}
-			SDL_GetRGBA(pixel_value,mask->format,&r,&g,&b,&a);
-			switch(mode.mode) {
-				case(ShapeModeDefault):
-					pixel_opaque = (a >= 1 ? SDL_TRUE : SDL_FALSE);
-					break;
-				case(ShapeModeBinarizeAlpha):
-					pixel_opaque = (a >= mode.parameters.binarizationCutoff ? SDL_TRUE : SDL_FALSE);
-					break;
-				case(ShapeModeReverseBinarizeAlpha):
-					pixel_opaque = (a <= mode.parameters.binarizationCutoff ? SDL_TRUE : SDL_FALSE);
-					break;
-				case(ShapeModeColorKey):
-					key = mode.parameters.colorKey;
-					pixel_opaque = ((key.r == r && key.g == g && key.b == b) ? SDL_TRUE : SDL_FALSE);
-					break;
-			}
-			if(last_opaque == -1)
-				last_opaque = pixel_opaque;
-			if(last_opaque != pixel_opaque) {
-				result->kind = QuadShape;
-				//These will stay the same.
-				next.w = dimensions.w / 2;
-				next.h = dimensions.h / 2;
-				//These will change from recursion to recursion.
-				next.x = dimensions.x;
-				next.y = dimensions.y;
-				result->data.children.upleft = (struct SDL_ShapeTree *)RecursivelyCalculateShapeTree(mode,mask,next);
-				next.x = dimensions.w / 2;
-				//Unneeded: next.y = dimensions.y;
-				result->data.children.upright = (struct SDL_ShapeTree *)RecursivelyCalculateShapeTree(mode,mask,next);
-				next.x = dimensions.x;
-				next.y = dimensions.h / 2;
-				result->data.children.downleft = (struct SDL_ShapeTree *)RecursivelyCalculateShapeTree(mode,mask,next);
-				next.x = dimensions.w / 2;
-				//Unneeded: next.y = dimensions.h / 2 + 1;
-				result->data.children.downright = (struct SDL_ShapeTree *)RecursivelyCalculateShapeTree(mode,mask,next);
-				return result;
-			}
-		}
-	//If we never recursed, all the pixels in this quadrant have the same "value".
-	result->kind = (last_opaque == SDL_TRUE ? OpaqueShape : TransparentShape);
-	result->data.shape = dimensions;
-	return result;
+SDL_ShapeTree*
+RecursivelyCalculateShapeTree(SDL_WindowShapeMode mode,SDL_Surface* mask,SDL_Rect dimensions) {
+    int x = 0,y = 0;
+    Uint8* pixel = NULL;
+    Uint32 pixel_value = 0;
+    Uint8 r = 0,g = 0,b = 0,a = 0;
+    SDL_bool pixel_opaque = SDL_FALSE;
+    int last_opaque = -1;
+    SDL_Color key;
+    SDL_ShapeTree* result = (SDL_ShapeTree*)SDL_malloc(sizeof(SDL_ShapeTree));
+    SDL_Rect next = {0,0,0,0};
+    for(y=dimensions.y;y<dimensions.y + dimensions.h;y++)
+        for(x=dimensions.x;x<dimensions.x + dimensions.w;x++) {
+            pixel_value = 0;
+            pixel = (Uint8 *)(mask->pixels) + (y*mask->pitch) + (x*mask->format->BytesPerPixel);
+            switch(mask->format->BytesPerPixel) {
+                case(1):
+                    pixel_value = *(Uint8*)pixel;
+                    break;
+                case(2):
+                    pixel_value = *(Uint16*)pixel;
+                    break;
+                case(3):
+                    pixel_value = *(Uint32*)pixel & (~mask->format->Amask);
+                    break;
+                case(4):
+                    pixel_value = *(Uint32*)pixel;
+                    break;
+            }
+            SDL_GetRGBA(pixel_value,mask->format,&r,&g,&b,&a);
+            switch(mode.mode) {
+                case(ShapeModeDefault):
+                    pixel_opaque = (a >= 1 ? SDL_TRUE : SDL_FALSE);
+                    break;
+                case(ShapeModeBinarizeAlpha):
+                    pixel_opaque = (a >= mode.parameters.binarizationCutoff ? SDL_TRUE : SDL_FALSE);
+                    break;
+                case(ShapeModeReverseBinarizeAlpha):
+                    pixel_opaque = (a <= mode.parameters.binarizationCutoff ? SDL_TRUE : SDL_FALSE);
+                    break;
+                case(ShapeModeColorKey):
+                    key = mode.parameters.colorKey;
+                    pixel_opaque = ((key.r == r && key.g == g && key.b == b) ? SDL_TRUE : SDL_FALSE);
+                    break;
+            }
+            if(last_opaque == -1)
+                last_opaque = pixel_opaque;
+            if(last_opaque != pixel_opaque) {
+                result->kind = QuadShape;
+                //These will stay the same.
+                next.w = dimensions.w / 2;
+                next.h = dimensions.h / 2;
+                //These will change from recursion to recursion.
+                next.x = dimensions.x;
+                next.y = dimensions.y;
+                result->data.children.upleft = (struct SDL_ShapeTree *)RecursivelyCalculateShapeTree(mode,mask,next);
+                next.x = dimensions.w / 2;
+                //Unneeded: next.y = dimensions.y;
+                result->data.children.upright = (struct SDL_ShapeTree *)RecursivelyCalculateShapeTree(mode,mask,next);
+                next.x = dimensions.x;
+                next.y = dimensions.h / 2;
+                result->data.children.downleft = (struct SDL_ShapeTree *)RecursivelyCalculateShapeTree(mode,mask,next);
+                next.x = dimensions.w / 2;
+                //Unneeded: next.y = dimensions.h / 2 + 1;
+                result->data.children.downright = (struct SDL_ShapeTree *)RecursivelyCalculateShapeTree(mode,mask,next);
+                return result;
+            }
+        }
+    //If we never recursed, all the pixels in this quadrant have the same "value".
+    result->kind = (last_opaque == SDL_TRUE ? OpaqueShape : TransparentShape);
+    result->data.shape = dimensions;
+    return result;
 }
 
-SDL_ShapeTree* SDL_CalculateShapeTree(SDL_WindowShapeMode mode,SDL_Surface* shape) {
-	SDL_Rect dimensions = {0,0,shape->w,shape->h};
-	SDL_ShapeTree* result = NULL;
-	if(SDL_MUSTLOCK(shape))
-		SDL_LockSurface(shape);
-	result = RecursivelyCalculateShapeTree(mode,shape,dimensions);
-	if(SDL_MUSTLOCK(shape))
-		SDL_UnlockSurface(shape);
-	return result;
+SDL_ShapeTree*
+SDL_CalculateShapeTree(SDL_WindowShapeMode mode,SDL_Surface* shape) {
+    SDL_Rect dimensions = {0,0,shape->w,shape->h};
+    SDL_ShapeTree* result = NULL;
+    if(SDL_MUSTLOCK(shape))
+        SDL_LockSurface(shape);
+    result = RecursivelyCalculateShapeTree(mode,shape,dimensions);
+    if(SDL_MUSTLOCK(shape))
+        SDL_UnlockSurface(shape);
+    return result;
 }
 
-void SDL_TraverseShapeTree(SDL_ShapeTree *tree,SDL_TraversalFunction function,void* closure) {
-	SDL_assert(tree != NULL);
-	if(tree->kind == QuadShape) {
-		SDL_TraverseShapeTree((SDL_ShapeTree *)tree->data.children.upleft,function,closure);
-		SDL_TraverseShapeTree((SDL_ShapeTree *)tree->data.children.upright,function,closure);
-		SDL_TraverseShapeTree((SDL_ShapeTree *)tree->data.children.downleft,function,closure);
-		SDL_TraverseShapeTree((SDL_ShapeTree *)tree->data.children.downright,function,closure);
-	}
-	else
-		function(tree,closure);
+void
+SDL_TraverseShapeTree(SDL_ShapeTree *tree,SDL_TraversalFunction function,void* closure) {
+    SDL_assert(tree != NULL);
+    if(tree->kind == QuadShape) {
+        SDL_TraverseShapeTree((SDL_ShapeTree *)tree->data.children.upleft,function,closure);
+        SDL_TraverseShapeTree((SDL_ShapeTree *)tree->data.children.upright,function,closure);
+        SDL_TraverseShapeTree((SDL_ShapeTree *)tree->data.children.downleft,function,closure);
+        SDL_TraverseShapeTree((SDL_ShapeTree *)tree->data.children.downright,function,closure);
+    }
+    else
+        function(tree,closure);
 }
 
-void SDL_FreeShapeTree(SDL_ShapeTree** shapeTree) {
-	if((*shapeTree)->kind == QuadShape) {
-		SDL_FreeShapeTree((SDL_ShapeTree **)&(*shapeTree)->data.children.upleft);
-		SDL_FreeShapeTree((SDL_ShapeTree **)&(*shapeTree)->data.children.upright);
-		SDL_FreeShapeTree((SDL_ShapeTree **)&(*shapeTree)->data.children.downleft);
-		SDL_FreeShapeTree((SDL_ShapeTree **)&(*shapeTree)->data.children.downright);
-	}
-	SDL_free(*shapeTree);
-	*shapeTree = NULL;
+void
+SDL_FreeShapeTree(SDL_ShapeTree** shapeTree) {
+    if((*shapeTree)->kind == QuadShape) {
+        SDL_FreeShapeTree((SDL_ShapeTree **)&(*shapeTree)->data.children.upleft);
+        SDL_FreeShapeTree((SDL_ShapeTree **)&(*shapeTree)->data.children.upright);
+        SDL_FreeShapeTree((SDL_ShapeTree **)&(*shapeTree)->data.children.downleft);
+        SDL_FreeShapeTree((SDL_ShapeTree **)&(*shapeTree)->data.children.downright);
+    }
+    SDL_free(*shapeTree);
+    *shapeTree = NULL;
 }
 
-int SDL_SetWindowShape(SDL_Window *window,SDL_Surface *shape,SDL_WindowShapeMode *shapeMode) {
-	int result;
-	if(window == NULL || !SDL_IsShapedWindow(window))
-		//The window given was not a shapeable window.
-		return SDL_NONSHAPEABLE_WINDOW;
-	if(shape == NULL)
-		//Invalid shape argument.
-		return SDL_INVALID_SHAPE_ARGUMENT;
-	
-	if(shapeMode != NULL)
-		window->shaper->mode = *shapeMode;
-	//TODO: Platform-specific implementations of SetWindowShape.  X11 is finished.  Win32 is finished.  Debugging is in progress on both.
-	result = window->display->device->shape_driver.SetWindowShape(window->shaper,shape,shapeMode);
-	window->shaper->hasshape = SDL_TRUE;
-	if((window->shaper->usershownflag & SDL_WINDOW_SHOWN) == SDL_WINDOW_SHOWN) {
-		SDL_ShowWindow(window);
-		window->shaper->usershownflag &= !SDL_WINDOW_SHOWN;
-	}
-	return result;
+int
+SDL_SetWindowShape(SDL_Window *window,SDL_Surface *shape,SDL_WindowShapeMode *shapeMode) {
+    int result;
+    if(window == NULL || !SDL_IsShapedWindow(window))
+        //The window given was not a shapeable window.
+        return SDL_NONSHAPEABLE_WINDOW;
+    if(shape == NULL)
+        //Invalid shape argument.
+        return SDL_INVALID_SHAPE_ARGUMENT;
+    
+    if(shapeMode != NULL)
+        window->shaper->mode = *shapeMode;
+    //TODO: Platform-specific implementations of SetWindowShape.  X11 is finished.  Win32 is finished.  Debugging is in progress on both.
+    result = window->display->device->shape_driver.SetWindowShape(window->shaper,shape,shapeMode);
+    window->shaper->hasshape = SDL_TRUE;
+    if((window->shaper->usershownflag & SDL_WINDOW_SHOWN) == SDL_WINDOW_SHOWN) {
+        SDL_ShowWindow(window);
+        window->shaper->usershownflag &= !SDL_WINDOW_SHOWN;
+    }
+    return result;
 }
 
-SDL_bool SDL_WindowHasAShape(SDL_Window *window) {
-	if (window == NULL || !SDL_IsShapedWindow(window))
-		return SDL_FALSE;
-	return window->shaper->hasshape;
+SDL_bool
+SDL_WindowHasAShape(SDL_Window *window) {
+    if (window == NULL || !SDL_IsShapedWindow(window))
+        return SDL_FALSE;
+    return window->shaper->hasshape;
 }
 
-int SDL_GetShapedWindowMode(SDL_Window *window,SDL_WindowShapeMode *shapeMode) {
-	if(window != NULL && SDL_IsShapedWindow(window)) {
-		if(shapeMode == NULL) {
-			if(SDL_WindowHasAShape(window))
-				//The window given has a shape.
-				return 0;
-			else
-				//The window given is shapeable but lacks a shape.
-				return SDL_WINDOW_LACKS_SHAPE;
-		}
-		else {
-			*shapeMode = window->shaper->mode;
-			return 0;
-		}
-	}
-	else
-		//The window given is not a valid shapeable window.
-		return SDL_NONSHAPEABLE_WINDOW;
+int
+SDL_GetShapedWindowMode(SDL_Window *window,SDL_WindowShapeMode *shapeMode) {
+    if(window != NULL && SDL_IsShapedWindow(window)) {
+        if(shapeMode == NULL) {
+            if(SDL_WindowHasAShape(window))
+                //The window given has a shape.
+                return 0;
+            else
+                //The window given is shapeable but lacks a shape.
+                return SDL_WINDOW_LACKS_SHAPE;
+        }
+        else {
+            *shapeMode = window->shaper->mode;
+            return 0;
+        }
+    }
+    else
+        //The window given is not a valid shapeable window.
+        return SDL_NONSHAPEABLE_WINDOW;
 }