0e45984fa0
The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
135 lines
4 KiB
C
135 lines
4 KiB
C
#include <stdio.h>
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#include "SDL.h"
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/* !!! FIXME: rewrite this to be wired in to test framework. */
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#define RESIZE_BORDER 20
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const SDL_Rect drag_areas[] = {
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{ 20, 20, 100, 100 },
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{ 200, 70, 100, 100 },
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{ 400, 90, 100, 100 }
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};
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static const SDL_Rect *areas = drag_areas;
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static int numareas = SDL_arraysize(drag_areas);
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static SDL_HitTestResult
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hitTest(SDL_Window *window, const SDL_Point *pt, void *data)
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{
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int i;
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int w, h;
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for (i = 0; i < numareas; i++) {
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if (SDL_PointInRect(pt, &areas[i])) {
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SDL_Log("HIT-TEST: DRAGGABLE\n");
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return SDL_HITTEST_DRAGGABLE;
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}
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}
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SDL_GetWindowSize(window, &w, &h);
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#define REPORT_RESIZE_HIT(name) { \
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SDL_Log("HIT-TEST: RESIZE_" #name "\n"); \
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return SDL_HITTEST_RESIZE_##name; \
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}
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if (pt->x < RESIZE_BORDER && pt->y < RESIZE_BORDER) {
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REPORT_RESIZE_HIT(TOPLEFT);
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} else if (pt->x > RESIZE_BORDER && pt->x < w - RESIZE_BORDER && pt->y < RESIZE_BORDER) {
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REPORT_RESIZE_HIT(TOP);
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} else if (pt->x > w - RESIZE_BORDER && pt->y < RESIZE_BORDER) {
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REPORT_RESIZE_HIT(TOPRIGHT);
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} else if (pt->x > w - RESIZE_BORDER && pt->y > RESIZE_BORDER && pt->y < h - RESIZE_BORDER) {
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REPORT_RESIZE_HIT(RIGHT);
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} else if (pt->x > w - RESIZE_BORDER && pt->y > h - RESIZE_BORDER) {
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REPORT_RESIZE_HIT(BOTTOMRIGHT);
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} else if (pt->x < w - RESIZE_BORDER && pt->x > RESIZE_BORDER && pt->y > h - RESIZE_BORDER) {
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REPORT_RESIZE_HIT(BOTTOM);
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} else if (pt->x < RESIZE_BORDER && pt->y > h - RESIZE_BORDER) {
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REPORT_RESIZE_HIT(BOTTOMLEFT);
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} else if (pt->x < RESIZE_BORDER && pt->y < h - RESIZE_BORDER && pt->y > RESIZE_BORDER) {
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REPORT_RESIZE_HIT(LEFT);
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}
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SDL_Log("HIT-TEST: NORMAL\n");
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return SDL_HITTEST_NORMAL;
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}
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int main(int argc, char **argv)
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{
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int done = 0;
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SDL_Window *window;
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SDL_Renderer *renderer;
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/* !!! FIXME: check for errors. */
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SDL_Init(SDL_INIT_VIDEO);
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window = SDL_CreateWindow("Drag the red boxes", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 640, 480, SDL_WINDOW_BORDERLESS | SDL_WINDOW_RESIZABLE);
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renderer = SDL_CreateRenderer(window, -1, 0);
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if (SDL_SetWindowHitTest(window, hitTest, NULL) == -1) {
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SDL_Log("Enabling hit-testing failed!\n");
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SDL_Quit();
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return 1;
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}
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while (!done)
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{
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SDL_Event e;
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int nothing_to_do = 1;
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SDL_SetRenderDrawColor(renderer, 0, 0, 127, 255);
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SDL_RenderClear(renderer);
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SDL_SetRenderDrawColor(renderer, 255, 0, 0, 255);
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SDL_RenderFillRects(renderer, areas, SDL_arraysize(drag_areas));
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SDL_RenderPresent(renderer);
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while (SDL_PollEvent(&e)) {
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nothing_to_do = 0;
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switch (e.type)
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{
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case SDL_MOUSEBUTTONDOWN:
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SDL_Log("button down!\n");
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break;
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case SDL_MOUSEBUTTONUP:
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SDL_Log("button up!\n");
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break;
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case SDL_WINDOWEVENT:
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if (e.window.event == SDL_WINDOWEVENT_MOVED) {
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SDL_Log("Window event moved to (%d, %d)!\n", (int) e.window.data1, (int) e.window.data2);
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}
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break;
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case SDL_KEYDOWN:
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if (e.key.keysym.sym == SDLK_ESCAPE) {
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done = 1;
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} else if (e.key.keysym.sym == SDLK_x) {
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if (!areas) {
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areas = drag_areas;
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numareas = SDL_arraysize(drag_areas);
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} else {
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areas = NULL;
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numareas = 0;
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}
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}
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break;
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case SDL_QUIT:
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done = 1;
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break;
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}
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}
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if (nothing_to_do) {
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SDL_Delay(50);
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}
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}
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SDL_Quit();
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return 0;
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}
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