我用旧版SDL 1.2获得了C语言的现有旧项目， 我试图让它运行并在安装SDL之后，我发现我的PC是64位因此我需要新的SDL2，在重新安装正确的SDL2后，我配置了包含行指向SDL2文件夹而不是旧的SDL，当我尝试运行时，我收到2个错误：
1 - 'SDL_HWSURFACE'未声明（首次使用此功能）
2 - 'SDL_SetColorKey'未声明（首次使用此功能）
PS - 使用MINGW编译器
任何想法？
我正在附加代码，但它很长......
/*
* GuiFramework.c
*
* Created on: 24 áñôè 2014
* Author: Ilias
*/
#include "GuiFramework.h"
static Control* root = NULL;
static SDL_Surface* surface = NULL;
static SDL_Surface* image = NULL;
static int click_x, click_y;
static Control* foundButton = NULL;
static int quit = FALSE;
static int enabled = FALSE;
static int visible = FALSE;
static int onlyEnabled = TRUE;
Control* allocControl() {
Control* control = malloc(sizeof(Control));
if (control == NULL) {
perror_message("malloc");
freeControls(root);
exit(0);
}
control->children = NULL;
control->parent = NULL;
control->next = NULL;
control->clip = NULL;
control->onClick = NULL;
control->onDraw = NULL;
control->enabled = TRUE;
control->visible = TRUE;
return control;
}
SDL_Rect* createRect(int x, int y, int w, int h) {
SDL_Rect* rect = malloc(sizeof(SDL_Rect));
if (rect == NULL) {
perror_message("malloc");
freeControls(root);
exit(0);
}
rect->w = w;
rect->h = h;
rect->x = x;
rect->y = y;
return rect;
}
Control* createButton(Control* parent, SDL_Rect* dim, SDL_Rect* clip, void (*func)(Control*), int enabled) {
Control* control = allocControl();
appendControl(parent, control);
control->type = BUTTON;
control->dim = dim;
control->abs = createRect(parent->abs->x + dim->x, parent->abs->y + dim->y, dim->w, dim->h);
control->clip = clip;
control->onClick = func;
control->visible = parent->visible;
control->enabled = enabled && control->visible;
return control;
}
Control* createPanel(Control* parent, SDL_Rect* dim, void (*func)(Control*), int visible) {
Control* control = allocControl();
appendControl(parent, control);
control->type = PANEL;
control->dim = dim;
control->abs = createRect(parent->abs->x + dim->x, parent->abs->y + dim->y, dim->w, dim->h);
control->onDraw = func;
control->visible = parent->visible && visible;
return control;
}
Control* createImage(Control* parent, SDL_Rect* dim, SDL_Rect* clip) {
Control* control = allocControl();
appendControl(parent, control);
control->type = IMAGE;
control->dim = dim;
control->abs = createRect(parent->abs->x + dim->x, parent->abs->y + dim->y, dim->w, dim->h);
control->clip = clip;
control->visible = parent->visible;
return control;
}
Control* createWindow(int width, int height, char* caption) {
Control* control = allocControl(NULL);
control->type = WINDOW;
control->dim = createRect(0, 0, width, height);
control->abs = createRect(0, 0, width, height);
/* Initialize the surface for resize issues */
if (surface != NULL) {
SDL_FreeSurface(surface);
}
surface = SDL_SetVideoMode(width, height, 0, SDL_HWSURFACE);
if (surface == NULL) {
printf("ERROR: failed to set video mode: %s\n", SDL_GetError());
freeControls(root);
exit(0);
}
/* Color the window background */
colorRect(control->dim, 0xFF, 0xFF, 0xFF);
SDL_WM_SetCaption(caption, caption);
return control;
}
void appendControl(Control* parent, Control* child) {
Control* currChild;
child->parent = parent;
/* Appends the control to the end list of the children of parent */
if (parent->children == NULL) {
parent->children = child;
} else {
currChild = parent->children;
while (currChild->next != NULL) {
currChild = currChild->next;
}
currChild->next = child;
}
}
void initializeSDL() {
if (SDL_Init(SDL_INIT_VIDEO) < 0) {
printf("ERROR: unable to init SDL: %s\n", SDL_GetError());
freeControls(root);
exit(0);
}
atexit(SDL_Quit);
}
void loadImage(char* name) {
SDL_Surface* loadedImage = SDL_LoadBMP(name);
if (loadedImage == NULL) {
printf("ERROR: unable to load image: %s\n", SDL_GetError());
exit(0);
}
image = loadedImage;
}
void colorRect(SDL_Rect* rect, int r, int g, int b) {
if (SDL_FillRect(surface, rect, SDL_MapRGB(surface->format, r, g, b)) < 0) {
printf("ERROR: failed to fill rect with color: %s\n", SDL_GetError());
freeControls(root);
exit(0);;
}
}
void drawBorders(SDL_Rect* rect, int width, int r, int g, int b) {
int i;
SDL_Rect* borderClips[4];
borderClips[0] = createRect(rect->x - width, rect->y - width, rect->w + 2 * width, width);
borderClips[1] = createRect(rect->x - width, rect->y - width, width, rect->h + 2 * width);
borderClips[2] = createRect(rect->x + rect->w, rect->y - width, width, rect->h + 2 * width);
borderClips[3] = createRect(rect->x - width, rect->y + rect->h, rect->w + 2 * width, width);
/* Draw Borders around given rect */
for (i = 0; i < 4; i++) {
colorRect(borderClips[i], r, g, b);
}
free(borderClips[0]);
free(borderClips[1]);
free(borderClips[2]);
free(borderClips[3]);
}
void optimizeImage() {
Uint32 colorKey;
SDL_Surface* optimizedImage = SDL_DisplayFormat(image);
SDL_FreeSurface(image);
if (optimizedImage == NULL) {
printf("ERROR: unable to optimize image: %s\n", SDL_GetError());
freeControls(root);
exit(0);
}
/* RGB: 250,255,255 is the key color */
colorKey = SDL_MapRGB(optimizedImage->format, 0xFA, 0xFF, 0xFF);
SDL_SetColorKey(optimizedImage, SDL_SRCCOLORKEY, colorKey);
image = optimizedImage;
}
void freeControls(Control* root) {
traverseTree(root, freeControl, TRUE);
if (quit) {
SDL_FreeSurface(image);
}
}
int freeControl(Control* control) {
if (control->dim != NULL) {
free(control->dim);
}
if (control->abs != NULL) {
free(control->abs);
}
free(control);
return 1;
}
void drawRoot() {
traverseTree(root, drawControl, FALSE);
/* After controls are drawn we flip */
if (SDL_Flip(surface) < 0) {
printf("ERROR: unable to flip screen: %s\n", SDL_GetError());
freeControls(root);
exit(0);
}
}
int drawControl(Control* control) {
if (control->visible) {
/* Draw if there is an onDraw function (used mostly by panels) */
if (control->onDraw != NULL) {
control->onDraw(control);
}
/* Draw also if there is an image to draw */
if (control->clip != NULL) {
if (SDL_BlitSurface(image, control->clip, surface, control->abs) < 0) {
printf("ERROR: unable to blit surface: %s\n", SDL_GetError());
freeControls(root);
exit(0);
}
}
}
return 1;
}
int setControlEnabled(Control* control) {
control->enabled = enabled && control->visible;
return 1;
}
int setControlVisible(Control* control) {
control->visible = visible;
return 1;
}
int findButton(Control* control) {
/* Check only if control is clickable */
if (control->onClick != NULL) {
if (click_x >= control->abs->x && click_x < control->abs->x + control->abs->w &&
click_y >= control->abs->y && click_y < control->abs->y + control->abs->h) {
if (!onlyEnabled || control->enabled) {
/* Found a button in the area, no need to keep looping */
foundButton = control;
return 0;
}
}
}
return 1;
}
int traverseTree(Control* control, int(*func)(Control*), int postOrder) {
Control* child;
Control* next;
int keepLooping = 1;
if (control != NULL) {
/* Perform func before recursion if not post order */
if (!postOrder && keepLooping) {
keepLooping = func(control);
}
/* Recurse the tree */
child = control->children;
while (child != NULL && keepLooping) {
next = child->next;
keepLooping = traverseTree(child, func, postOrder);
child = next;
}
/* Perform func after recursion if post order */
if (postOrder && keepLooping) {
keepLooping = func(control);
}
}
return keepLooping;
}
void handleEvents() {
SDL_Event e;
while (!quit) {
if (SDL_PollEvent(&e) != 0) {
if (e.type == SDL_QUIT) { /* A quit was detected */
quitGuiLoop();
} else if (e.type == SDL_MOUSEBUTTONDOWN) { /* Mouse click was detected */
if (e.button.button == SDL_BUTTON_LEFT) {
click_x = e.button.x;
click_y = e.button.y;
/* Find the button that was pressed */
onlyEnabled = TRUE;
traverseTree(root, findButton, TRUE);
if (foundButton != NULL) {
foundButton->onClick(foundButton);
foundButton = NULL;
}
}
}
drawRoot();
delay(10);
}
}
}
void delay(int ms) {
SDL_Delay(ms);
}
void quitGuiLoop() {
quit = 1;
}
Control* getControlByDimension(int x, int y) {
Control* control;
click_x = x;
click_y = y;
/* Find the button located at specified coordinates */
onlyEnabled = FALSE;
traverseTree(root, findButton, TRUE);
control = foundButton;
foundButton = NULL;
return control;
}
Control* getRoot() {
return root;
}
void setRoot(Control* newRoot) {
root = newRoot;
}
void setControlsVisible(Control* root, int visibleValue) {
visible = visibleValue;
traverseTree(root, setControlVisible, TRUE);
}
void setControlsEnabled(Control* root, int enabledValue) {
enabled = enabledValue;
traverseTree(root, setControlEnabled, TRUE);
}