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-rw-r--r--backends/sdl/sdl-common.cpp44
-rw-r--r--backends/sdl/sdl-common.h7
-rw-r--r--backends/sdl/sdl.cpp22
-rw-r--r--backends/sdl/sdl_gl.cpp1
4 files changed, 48 insertions, 26 deletions
diff --git a/backends/sdl/sdl-common.cpp b/backends/sdl/sdl-common.cpp
index b27b5ee5c1..4808515490 100644
--- a/backends/sdl/sdl-common.cpp
+++ b/backends/sdl/sdl-common.cpp
@@ -69,21 +69,39 @@ void OSystem_SDL_Common::set_timer(int timer, int (*callback)(int)) {
SDL_SetTimer(timer, (SDL_TimerCallback) callback);
}
+OSystem_SDL_Common::OSystem_SDL_Common()
+ : sdl_screen(0), SCREEN_WIDTH(0), SCREEN_HEIGHT(0),
+ _dirty_checksums(0), _current_shake_pos(0), _new_shake_pos(0)
+{
+ // allocate palette storage
+ _cur_pal = (SDL_Color*)calloc(sizeof(SDL_Color), 256);
+
+ // allocate the dirty rect storage
+ _mouse_backup = (byte*)malloc(MAX_MOUSE_W * MAX_MOUSE_H * MAX_SCALING * 2);
+}
+
+OSystem_SDL_Common::~OSystem_SDL_Common()
+{
+ if (_dirty_checksums)
+ free(_dirty_checksums);
+ free(_cur_pal);
+ free(_mouse_backup);
+}
+
void OSystem_SDL_Common::init_size(uint w, uint h) {
- //if (w != SCREEN_WIDTH && h != SCREEN_HEIGHT)
- // error("320x200 is the only game resolution supported");
+
+ // Avoid redundant res changes
+ if (w == SCREEN_WIDTH && h == SCREEN_HEIGHT)
+ return;
SCREEN_WIDTH = w;
SCREEN_HEIGHT = h;
CKSUM_NUM = (SCREEN_WIDTH*SCREEN_HEIGHT/(8*8));
- /* allocate palette, it needs to be persistent across
- * driver changes, so i'll alloc it here */
- _cur_pal = (SDL_Color*)calloc(sizeof(SDL_Color), 256);
-
- dirty_rect_list = (SDL_Rect*)calloc(NUM_DIRTY_RECT, sizeof(SDL_Rect));
- _mouse_backup = (byte*)malloc(MAX_MOUSE_W * MAX_MOUSE_H * MAX_SCALING * 2);
- dirty_checksums = (uint32*)calloc(CKSUM_NUM*2, sizeof(uint32));
+ if (_dirty_checksums)
+ free(_dirty_checksums);
+ _dirty_checksums = (uint32*)calloc(CKSUM_NUM*2, sizeof(uint32));
+ unload_gfx_mode();
load_gfx_mode();
#ifdef MACOSX // Work around a bug in OS X 10.1 related to OpenGL in windowed mode
@@ -179,7 +197,7 @@ void OSystem_SDL_Common::add_dirty_rect(int x, int y, int w, int h) {
if (num_dirty_rects == NUM_DIRTY_RECT)
force_full = true;
else {
- SDL_Rect *r = &dirty_rect_list[num_dirty_rects++];
+ SDL_Rect *r = &_dirty_rect_list[num_dirty_rects++];
/* Update the dirty region by 1 pixel for graphics drivers
* that "smear" the screen */
@@ -206,7 +224,7 @@ void OSystem_SDL_Common::add_dirty_rect(int x, int y, int w, int h) {
#define ROL(a,n) a = (a<<(n)) | (a>>(32-(n)))
#define DOLINE(x) a ^= ((uint32*)buf)[0+(x)*(SCREEN_WIDTH/4)]; b ^= ((uint32*)buf)[1+(x)*(SCREEN_WIDTH/4)]
void OSystem_SDL_Common::mk_checksums(const byte *buf) {
- uint32 *sums = dirty_checksums;
+ uint32 *sums = _dirty_checksums;
uint x,y;
const uint last_x = (uint)SCREEN_WIDTH/8;
const uint last_y = (uint)SCREEN_HEIGHT/8;
@@ -255,7 +273,7 @@ void OSystem_SDL_Common::add_dirty_rgn_auto(const byte *buf) {
into bigger ones in a simple way */
if (!force_full) {
int x,y,w;
- uint32 *ck = dirty_checksums;
+ uint32 *ck = _dirty_checksums;
for(y=0; y!=SCREEN_HEIGHT/8; y++) {
for(x=0; x!=SCREEN_WIDTH/8; x++,ck++) {
@@ -278,7 +296,7 @@ void OSystem_SDL_Common::add_dirty_rgn_auto(const byte *buf) {
} else {
get_out:;
/* Copy old checksums to new */
- memcpy(dirty_checksums + CKSUM_NUM, dirty_checksums, CKSUM_NUM * sizeof(uint32));
+ memcpy(_dirty_checksums + CKSUM_NUM, _dirty_checksums, CKSUM_NUM * sizeof(uint32));
}
}
diff --git a/backends/sdl/sdl-common.h b/backends/sdl/sdl-common.h
index 3da878a6e6..b6d0463359 100644
--- a/backends/sdl/sdl-common.h
+++ b/backends/sdl/sdl-common.h
@@ -133,9 +133,9 @@ protected:
};
int SCREEN_WIDTH, SCREEN_HEIGHT, CKSUM_NUM;
- SDL_Rect *dirty_rect_list;
+ SDL_Rect _dirty_rect_list[100];
int num_dirty_rects;
- uint32 *dirty_checksums;
+ uint32 *_dirty_checksums;
int scaling;
@@ -165,7 +165,8 @@ protected:
uint _palette_changed_first, _palette_changed_last;
- OSystem_SDL_Common() : _current_shake_pos(0), _new_shake_pos(0) {}
+ OSystem_SDL_Common();
+ virtual ~OSystem_SDL_Common();
void add_dirty_rgn_auto(const byte *buf);
void mk_checksums(const byte *buf);
diff --git a/backends/sdl/sdl.cpp b/backends/sdl/sdl.cpp
index cf8c39b0a4..2b2ae1d115 100644
--- a/backends/sdl/sdl.cpp
+++ b/backends/sdl/sdl.cpp
@@ -27,6 +27,8 @@
class OSystem_SDL_Normal : public OSystem_SDL_Common {
public:
+ OSystem_SDL_Normal() : sdl_tmpscreen(0), sdl_hwscreen(0) {}
+
// Set colors of the palette
void set_palette(const byte *colors, uint start, uint num);
@@ -337,10 +339,10 @@ void OSystem_SDL_Normal::update_screen() {
if (force_full) {
num_dirty_rects = 1;
- dirty_rect_list[0].x = 0;
- dirty_rect_list[0].y = 0;
- dirty_rect_list[0].w = SCREEN_WIDTH;
- dirty_rect_list[0].h = SCREEN_HEIGHT;
+ _dirty_rect_list[0].x = 0;
+ _dirty_rect_list[0].y = 0;
+ _dirty_rect_list[0].w = SCREEN_WIDTH;
+ _dirty_rect_list[0].h = SCREEN_HEIGHT;
}
// Only draw anything if necessary
@@ -348,12 +350,12 @@ void OSystem_SDL_Normal::update_screen() {
SDL_Rect *r;
uint32 srcPitch, dstPitch;
- SDL_Rect *last_rect = dirty_rect_list + num_dirty_rects;
+ SDL_Rect *last_rect = _dirty_rect_list + num_dirty_rects;
// Convert appropriate parts of the 8bpp image into 16bpp
if (!_overlay_visible) {
SDL_Rect dst;
- for(r=dirty_rect_list; r!=last_rect; ++r) {
+ for(r=_dirty_rect_list; r!=last_rect; ++r) {
dst = *r;
dst.x++; // Shift rect by one since 2xSai needs to acces the data around
dst.y++; // any pixel to scale it, and we want to avoid mem access crashes.
@@ -368,7 +370,7 @@ void OSystem_SDL_Normal::update_screen() {
srcPitch = sdl_tmpscreen->pitch;
dstPitch = sdl_hwscreen->pitch;
- for(r=dirty_rect_list; r!=last_rect; ++r) {
+ for(r=_dirty_rect_list; r!=last_rect; ++r) {
register int dst_y = r->y + _current_shake_pos;
register int dst_h = 0;
if (dst_y < SCREEN_HEIGHT) {
@@ -389,8 +391,8 @@ void OSystem_SDL_Normal::update_screen() {
}
if (force_full) {
- dirty_rect_list[0].y = 0;
- dirty_rect_list[0].h = SCREEN_HEIGHT * scaling;
+ _dirty_rect_list[0].y = 0;
+ _dirty_rect_list[0].h = SCREEN_HEIGHT * scaling;
}
SDL_UnlockSurface(sdl_tmpscreen);
@@ -399,7 +401,7 @@ void OSystem_SDL_Normal::update_screen() {
if (num_dirty_rects > 0) {
/* Finally, blit all our changes to the screen */
- SDL_UpdateRects(sdl_hwscreen, num_dirty_rects, dirty_rect_list);
+ SDL_UpdateRects(sdl_hwscreen, num_dirty_rects, _dirty_rect_list);
}
num_dirty_rects = 0;
diff --git a/backends/sdl/sdl_gl.cpp b/backends/sdl/sdl_gl.cpp
index 00d0947f32..9e6e0f8e72 100644
--- a/backends/sdl/sdl_gl.cpp
+++ b/backends/sdl/sdl_gl.cpp
@@ -141,6 +141,7 @@ void OSystem_SDL_GL::update_screen() {
_palette_changed_last = 0;
}
+ // FIXME - this seems to be tied to 320x200 - what about Zak256 which needs 320x240 ?
fb2gl.update(sdl_screen->pixels,320,200,320,0,_current_shake_pos);
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-04 13:44:10 +0000