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comparison src/video/win32/SDL_win32shape.c @ 4849:0b918c186938

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Finally got the Win32 API code for shaping to work! Just need to fix SDL_CalculateShapeTree() now!
author egottlieb
date Sat, 14 Aug 2010 16:14:36 -0400
parents 40b46225e3cf
children 14870d46ee2d
comparison
equal deleted inserted replaced
4848:40b46225e3cf 4849:0b918c186938
18 18
19 Eli Gottlieb 19 Eli Gottlieb
20 eligottlieb@gmail.com 20 eligottlieb@gmail.com
21 */ 21 */
22 22
23 #include <stdio.h>
23 #include "SDL_win32shape.h" 24 #include "SDL_win32shape.h"
24 #include "SDL_win32video.h" 25 #include "SDL_win32video.h"
25 26
26 SDL_WindowShaper* 27 SDL_WindowShaper*
27 Win32_CreateShaper(SDL_Window * window) { 28 Win32_CreateShaper(SDL_Window * window) {
47 void* next; 48 void* next;
48 } SDL_ShapeRect; 49 } SDL_ShapeRect;
49 50
50 void 51 void
51 CombineRectRegions(SDL_ShapeTree* node,void* closure) { 52 CombineRectRegions(SDL_ShapeTree* node,void* closure) {
53 char debug_str[200];
52 SDL_ShapeRect* rect_list = *((SDL_ShapeRect**)closure); 54 SDL_ShapeRect* rect_list = *((SDL_ShapeRect**)closure);
53 if(node->kind == OpaqueShape) { 55 if(node->kind == OpaqueShape) {
54 SDL_ShapeRect* rect = SDL_malloc(sizeof(SDL_ShapeRect)); 56 SDL_ShapeRect* rect = SDL_malloc(sizeof(SDL_ShapeRect));
57 sprintf_s(&debug_str[0],200,"x: %u y: %u, x+w: %u, y+h: %u\n",
58 node->data.shape.x,node->data.shape.y,
59 node->data.shape.x + node->data.shape.w,node->data.shape.y + node->data.shape.h);
60 OutputDebugStringA(debug_str);
61 OutputDebugStringA("Converting SDL_ShapeTree opaque node to Windows rectangle.\n");
55 rect->corners[0].x = node->data.shape.x; rect->corners[0].y = node->data.shape.y; 62 rect->corners[0].x = node->data.shape.x; rect->corners[0].y = node->data.shape.y;
56 rect->corners[1].x = node->data.shape.x + node->data.shape.w; rect->corners[1].y = node->data.shape.y; 63 rect->corners[1].x = node->data.shape.x + node->data.shape.w; rect->corners[1].y = node->data.shape.y;
57 rect->corners[2].x = node->data.shape.x + node->data.shape.w; rect->corners[2].y = node->data.shape.y + node->data.shape.h; 64 rect->corners[2].x = node->data.shape.x + node->data.shape.w; rect->corners[2].y = node->data.shape.y + node->data.shape.h;
58 rect->corners[3].x = node->data.shape.x; rect->corners[3].y = node->data.shape.y + node->data.shape.h; 65 rect->corners[3].x = node->data.shape.x; rect->corners[3].y = node->data.shape.y + node->data.shape.h;
59 rect->next = *((SDL_ShapeRect**)closure); 66 rect->next = *((SDL_ShapeRect**)closure);
67 else 74 else
68 return 1 + num_shape_rects(rect->next); 75 return 1 + num_shape_rects(rect->next);
69 } 76 }
70 77
71 int 78 int
72 Win32_SetWindowShape(SDL_WindowShaper *shaper,SDL_Surface *shape,SDL_WindowShapeMode *shapeMode) { 79 Win32_SetWindowShape(SDL_WindowShaper *shaper,SDL_Surface *shape,SDL_WindowShapeMode *shape_mode) {
73 SDL_ShapeData *data; 80 SDL_ShapeData *data;
74 HRGN mask_region; 81 HRGN mask_region;
75 SDL_ShapeRect* rects = NULL,*old = NULL; 82 SDL_ShapeRect* rects = NULL,*old = NULL;
76 Uint16 num_rects = 0,i = 0; 83 Uint16 num_rects = 0,i = 0;
77 int* polygonVertexNumbers = NULL; 84 int* polygonVertexNumbers = NULL;
78 POINT* polygons = NULL; 85 POINT* polygons = NULL;
86 char debug_str[200];
79 87
80 if (shaper == NULL || shape == NULL) 88 if (shaper == NULL || shape == NULL)
81 return SDL_INVALID_SHAPE_ARGUMENT; 89 return SDL_INVALID_SHAPE_ARGUMENT;
82 if(shape->format->Amask == 0 && shapeMode->mode != ShapeModeColorKey || shape->w != shaper->window->w || shape->h != shaper->window->h) 90 if(shape->format->Amask == 0 && shape_mode->mode != ShapeModeColorKey || shape->w != shaper->window->w || shape->h != shaper->window->h)
83 return SDL_INVALID_SHAPE_ARGUMENT; 91 return SDL_INVALID_SHAPE_ARGUMENT;
84 92
85 data = (SDL_ShapeData*)shaper->driverdata; 93 data = (SDL_ShapeData*)shaper->driverdata;
86 if(data->mask_tree != NULL) 94 if(data->mask_tree != NULL)
87 SDL_FreeShapeTree(&data->mask_tree); 95 SDL_FreeShapeTree(&data->mask_tree);
88 data->mask_tree = SDL_CalculateShapeTree(*shapeMode,shape); 96 data->mask_tree = SDL_CalculateShapeTree(*shape_mode,shape);
89 97
90 SDL_TraverseShapeTree(data->mask_tree,&CombineRectRegions,&rects); 98 SDL_TraverseShapeTree(data->mask_tree,&CombineRectRegions,&rects);
91 num_rects = num_shape_rects(rects); 99 num_rects = num_shape_rects(rects);
92 polygonVertexNumbers = (int*)SDL_malloc(sizeof(int)*num_rects); 100 polygonVertexNumbers = (int*)SDL_malloc(sizeof(int)*num_rects);
93 for(i=0;i<num_rects;i++) 101 for(i=0;i<num_rects;i++)
94 polygonVertexNumbers[i] = 4; 102 polygonVertexNumbers[i] = 4;
95 polygons = (POINT*)SDL_malloc(sizeof(POINT)*4*num_rects); 103 polygons = (POINT*)SDL_malloc(sizeof(POINT)*4*num_rects);
96 for(i=0;i<num_rects*4;i++) { 104 for(i=0;i<num_rects*4;i++) {
97 polygons[i] = rects[i / 4].corners[i % 4]; 105 polygons[i] = rects->corners[i % 4];
98 if(i % 4 == 3) { 106 if(i % 4 == 3) {
107 sprintf_s(&debug_str[0],200,"x: %u y: %u, x+w: %u, y+h: %u\n",
108 rects->corners[0].x,rects->corners[0].y,
109 rects->corners[2].x,rects->corners[2].y);
110 OutputDebugStringA(debug_str);
99 old = rects; 111 old = rects;
100 rects = rects->next; 112 rects = rects->next;
101 SDL_free(old); 113 SDL_free(old);
102 } 114 }
103 } 115 }