#include <SDL.h>
#include <SDL_syswm.h>
-#if CONF_XSP
-# include <X11/extensions/Xsp.h>
-#endif
-
#include "snes9x.h"
#include "platform.h"
#include "display.h"
#include "gfx.h"
#include "ppu.h"
+#include "sdlv.h"
+#include "scaler.h"
#define DIE(format, ...) do { \
fprintf(stderr, "Died at %s:%d: ", __FILE__, __LINE__ ); \
struct gui GUI;
-static SDL_Surface* screen;
+SDL_Surface* screen;
static SDL_Rect windowSize, screenSize;
static bool gotWindowSize, gotScreenSize;
-class Scaler;
/** The current scaler object */
static Scaler* scaler;
-static void centerRectangle(SDL_Rect& result, int areaW, int areaH, int w, int h)
-{
- result.x = areaW / 2 - w / 2;
- result.w = w;
- result.y = areaH / 2 - h / 2;
- result.h = h;
-}
-
-class Scaler
-{
-public:
- Scaler() { };
- virtual ~Scaler() { };
-
- virtual const char * getName() const = 0;
-
- virtual uint8* getDrawBuffer() const = 0;
- virtual unsigned int getDrawBufferPitch() const = 0;
- virtual void getRenderedGUIArea(unsigned short & x, unsigned short & y,
- unsigned short & w, unsigned short & h)
- const = 0;
- virtual int getRatio() const = 0;
- virtual void prepare() = 0;
- virtual void finish() = 0;
- virtual void pause() = 0;
- virtual void resume() = 0;
-};
-
-class ScalerFactory
-{
-public:
- ScalerFactory() { };
- virtual ~ScalerFactory() { };
- virtual const char * getName() const = 0;
- virtual bool canEnable(int bpp, int w, int h) const = 0;
- virtual Scaler* instantiate(SDL_Surface* screen, int w, int h) const = 0;
-};
-
-class DummyScaler : public Scaler
-{
- SDL_Surface * m_screen;
- SDL_Rect m_area;
-
- DummyScaler(SDL_Surface* screen, int w, int h)
- : m_screen(screen)
- {
- centerRectangle(m_area, GUI.Width, GUI.Height, w, h);
- }
-public:
-
- ~DummyScaler()
- {
- };
-
- class Factory : public ScalerFactory
- {
- const char * getName() const
- {
- return "none";
- }
-
- bool canEnable(int bpp, int w, int h) const
- {
- return true;
- }
-
- Scaler* instantiate(SDL_Surface* screen, int w, int h) const
- {
- return new DummyScaler(screen, w, h);
- }
- };
-
- static const Factory factory;
-
- const char * getName() const
- {
- return "no scaling";
- }
-
- uint8* getDrawBuffer() const
- {
- const int Bpp = screen->format->BitsPerPixel / 8;
- const int pitch = screen->pitch;
- return ((uint8*) screen->pixels)
- + (m_area.x * Bpp)
- + (m_area.y * pitch);
- };
-
- unsigned int getDrawBufferPitch() const
- {
- return screen->pitch;
- };
-
- void getRenderedGUIArea(unsigned short & x, unsigned short & y,
- unsigned short & w, unsigned short & h) const
- {
- x = m_area.x; y = m_area.y; w = m_area.w; h = m_area.h;
- };
-
- int getRatio() const
- {
- return 1;
- };
-
- void prepare() { };
-
- void finish()
- {
- SDL_UpdateRects(m_screen, 1, &m_area);
- };
-
- void pause() { };
- void resume() { };
-};
-const DummyScaler::Factory DummyScaler::factory;
-
-#ifdef __arm__
-class ARMScaler : public Scaler
-{
- SDL_Surface * m_screen;
- SDL_Rect m_area;
- uint8 * m_surface;
- const int m_w, m_h, m_Bpp;
-
- ARMScaler(SDL_Surface* screen, int w, int h)
- : m_screen(screen), m_w(w), m_h(h),
- m_Bpp(m_screen->format->BitsPerPixel / 8)
- {
- centerRectangle(m_area, GUI.Width, GUI.Height, w * 2, h * 2);
- m_surface = reinterpret_cast<uint8*>(malloc(w * h * m_Bpp));
- }
-public:
- ~ARMScaler()
- {
- free(m_surface);
- };
-
- class Factory : public ScalerFactory
- {
- const char * getName() const
- {
- return "2x";
- }
-
- bool canEnable(int bpp, int w, int h) const
- {
- return bpp == 16 && w * 2 < GUI.Width && h * 2 < GUI.Height &&
- w % 16 == 0 /* asm assumes w div by 16 */;
- }
-
- Scaler* instantiate(SDL_Surface* screen, int w, int h) const
- {
- return new ARMScaler(screen, w, h);
- }
- };
-
- static const Factory factory;
-
- const char * getName() const
- {
- return "software ARM 2x scaling";
- }
-
- uint8* getDrawBuffer() const
- {
- return m_surface;
- };
-
- unsigned int getDrawBufferPitch() const
- {
- return m_w * m_Bpp;
- };
-
- void getRenderedGUIArea(unsigned short & x, unsigned short & y,
- unsigned short & w, unsigned short & h) const
- {
- x = m_area.x; y = m_area.y; w = m_area.w; h = m_area.h;
- };
-
- int getRatio() const
- {
- return 2;
- };
-
- void prepare() { };
-
- void finish()
- {
- uint16 * src = reinterpret_cast<uint16*>(m_surface);
- uint16 * dst = reinterpret_cast<uint16*>(
- ((uint8*) m_screen->pixels)
- + (m_area.x * m_Bpp)
- + (m_area.y * m_screen->pitch));
- const int src_pitch = m_w;
- const int dst_pitch = m_screen->pitch / m_Bpp;
- int y;
-
- for (y = 0; y < m_h*2; y++) {
- asm volatile
- (
- "mov r0, %0; mov r1, %1; mov r2, %2;"
- "stmdb r13!,{r4,r5,r6,r7,r8,r9,r10,r11,r12,r14};"
- "1: ldmia r1!,{r3,r4,r5,r6,r7,r8,r9,r10};"
- "mov r14,r5,lsr #16;"
- "mov r12,r5,lsl #16;"
- "orr r14,r14,r14,lsl #16;"
- "orr r12,r12,r12,lsr #16;"
- "mov r11,r4,lsr #16;"
- "mov r5,r4,lsl #16;"
- "orr r11,r11,r11,lsl #16;"
- "orr r5,r5,r5,lsr #16;"
- "mov r4,r3,lsr #16;"
- "mov r3,r3,lsl #16;"
- "orr r4,r4,r4,lsl #16;"
- "orr r3,r3,r3,lsr #16;"
- "stmia r0!,{r3,r4,r5,r11,r12,r14};"
- "mov r3,r6,lsl #16;"
- "mov r4,r6,lsr #16;"
- "orr r3,r3,r3,lsr #16;"
- "orr r4,r4,r4,lsl #16;"
- "mov r5,r7,lsl #16;"
- "mov r6,r7,lsr #16;"
- "orr r5,r5,r5,lsr #16;"
- "orr r6,r6,r6,lsl #16;"
- "mov r7,r8,lsl #16;"
- "mov r8,r8,lsr #16;"
- "orr r7,r7,r7,lsr #16;"
- "orr r8,r8,r8,lsl #16;"
- "mov r12,r10,lsr #16;"
- "mov r11,r10,lsl #16;"
- "orr r12,r12,r12,lsl #16;"
- "orr r11,r11,r11,lsr #16;"
- "mov r10,r9,lsr #16;"
- "mov r9,r9,lsl #16;"
- "orr r10,r10,r10,lsl #16;"
- "orr r9,r9,r9,lsr #16;"
- "stmia r0!,{r3,r4,r5,r6,r7,r8,r9,r10,r11,r12};"
- "subs r2,r2,#16;"
- "bhi 1b;"
- "ldmia r13!,{r4,r5,r6,r7,r8,r9,r10,r11,r12,r14};"
- :
- : "r" (dst), "r" (src), "r" (m_w)
- : "r0", "r1", "r2", "r3"
- );
- dst += dst_pitch;
- if (y&1) src += src_pitch;
- }
-
- SDL_UpdateRects(m_screen, 1, &m_area);
- };
-
- void pause() { };
- void resume() { };
-};
-const ARMScaler::Factory ARMScaler::factory;
-#endif
-
-class SWScaler : public Scaler
-{
- SDL_Surface * m_screen;
- SDL_Rect m_area;
- uint8 * m_surface;
- const int m_w, m_h, m_Bpp;
-
- SWScaler(SDL_Surface* screen, int w, int h)
- : m_screen(screen), m_w(w), m_h(h),
- m_Bpp(m_screen->format->BitsPerPixel / 8)
- {
- centerRectangle(m_area, GUI.Width, GUI.Height, w * 2, h * 2);
- m_surface = reinterpret_cast<uint8*>(malloc(w * h * m_Bpp));
- }
-public:
- ~SWScaler()
- {
- free(m_surface);
- };
-
- class Factory : public ScalerFactory
- {
- const char * getName() const
- {
- return "soft2x";
- }
-
- bool canEnable(int bpp, int w, int h) const
- {
- return w * 2 < GUI.Width && h * 2 < GUI.Height;
- }
-
- Scaler* instantiate(SDL_Surface* screen, int w, int h) const
- {
- return new SWScaler(screen, w, h);
- }
- };
-
- static const Factory factory;
-
- const char * getName() const
- {
- return "software 2x scaling";
- }
-
- uint8* getDrawBuffer() const
- {
- return m_surface;
- };
-
- unsigned int getDrawBufferPitch() const
- {
- return m_w * m_Bpp;
- };
-
- void getRenderedGUIArea(unsigned short & x, unsigned short & y,
- unsigned short & w, unsigned short & h) const
- {
- x = m_area.x; y = m_area.y; w = m_area.w; h = m_area.h;
- };
-
- int getRatio() const
- {
- return 2;
- };
-
- void prepare() { };
-
- void finish()
- {
- uint16 * src = reinterpret_cast<uint16*>(m_surface);
- uint16 * dst = reinterpret_cast<uint16*>(
- ((uint8*) m_screen->pixels)
- + (m_area.x * m_Bpp)
- + (m_area.y * m_screen->pitch));
- const int src_pitch = m_w;
- const int dst_pitch = m_screen->pitch / m_Bpp;
- int x, y;
-
- for (y = 0; y < m_h*2; y++) {
- for (x = 0; x < m_w*2; x+=2) {
- dst[x] = src[x/2];
- dst[x + 1] = src[x/2];
- }
- dst += dst_pitch;
- if (y&1) src += src_pitch;
- }
-
- SDL_UpdateRects(m_screen, 1, &m_area);
- };
-
- void pause() { };
- void resume() { };
-};
-const SWScaler::Factory SWScaler::factory;
-
-#if CONF_XSP
-class XSPScaler : public Scaler
-{
- SDL_Surface* m_screen;
- SDL_Rect m_area;
- SDL_Rect m_real_area;
- bool m_should_enable, m_enabled; // Try to avoid flicker.
-
- static void setDoubling(bool enable)
- {
- SDL_SysWMinfo wminfo;
- SDL_VERSION(&wminfo.version);
- if ( SDL_GetWMInfo(&wminfo) ) {
- Display *dpy = wminfo.info.x11.display;
- XSPSetPixelDoubling(dpy, 0, enable ? 1 : 0);
- XFlush(dpy);
- }
- }
-
- XSPScaler(SDL_Surface* screen, int w, int h)
- : m_screen(screen), m_should_enable(true), m_enabled(false)
- {
- centerRectangle(m_area, GUI.Width, GUI.Height,
- w * 2, h * 2);
-
- m_real_area.x = m_area.x;
- m_real_area.y = m_area.y;
- m_real_area.w = m_area.w / 2;
- m_real_area.h = m_area.h / 2;
- };
-public:
- ~XSPScaler()
- {
- if (m_enabled) setDoubling(false);
- };
-
- class Factory : public ScalerFactory
- {
- const char * getName() const
- {
- return "xsp";
- }
-
- bool canEnable(int bpp, int w, int h) const
- {
- return w * 2 < GUI.Width && h * 2 < GUI.Height;
- };
-
- Scaler* instantiate(SDL_Surface* screen, int w, int h) const
- {
- return new XSPScaler(screen, w, h);
- }
- };
-
- static const Factory factory;
-
- const char * getName() const
- {
- return "XSP pixel doubling";
- }
-
- uint8* getDrawBuffer() const
- {
- const int Bpp = screen->format->BitsPerPixel / 8;
- const int pitch = screen->pitch;
- return ((uint8*) screen->pixels)
- + (m_area.x * Bpp)
- + (m_area.y * pitch);
- };
-
- unsigned int getDrawBufferPitch() const
- {
- return screen->pitch;
- };
-
- void getRenderedGUIArea(unsigned short & x, unsigned short & y,
- unsigned short & w, unsigned short & h) const
- {
- x = m_area.x; y = m_area.y; w = m_area.w; h = m_area.h;
- };
-
- int getRatio() const
- {
- return 2;
- };
-
- void prepare()
- {
- if (m_should_enable && !m_enabled) {
- setDoubling(true);
- m_enabled = true;
- }
- };
-
- void finish()
- {
- SDL_UpdateRects(m_screen, 1, &m_real_area);
- };
-
- void pause()
- {
- m_should_enable = false;
- if (m_enabled) {
- setDoubling(false);
- m_enabled = false;
- }
- };
-
- void resume()
- {
- m_should_enable = true; // Will enable later
- };
-};
-const XSPScaler::Factory XSPScaler::factory;
-#endif
-
-static const ScalerFactory* scalers[] = {
-#if CONF_XSP
- &XSPScaler::factory,
-#endif
-#ifdef __arm__
- &ARMScaler::factory,
-#endif
- &SWScaler::factory,
- &DummyScaler::factory
-};
-
-static const ScalerFactory* searchForScaler(int bpp, int w, int h)
-{
- const int n = sizeof(scalers) / sizeof(ScalerFactory*);
- int i;
-
- if (Config.scaler && strcasecmp(Config.scaler, "help") == 0 ) {
- // List scalers
- printf("Scalers list:\n");
- for (i = 0; i < n; i++) {
- printf(" %s\n", scalers[i]->getName());
- }
- DIE("End of scalers list");
- } else if (Config.scaler && strcasecmp(Config.scaler, "auto") != 0 ) {
- // We prefer a specific scaler
- for (i = 0; i < n; i++) {
- if (strcasecmp(scalers[i]->getName(), Config.scaler) == 0) {
- if (scalers[i]->canEnable(bpp, w, h)) {
- // Found the scaler selected by the user, and we can use it.
- return scalers[i];
- } else {
- fprintf(stderr,
- "Selected scaler '%s' cannot be enabled in this mode\n",
- Config.scaler);
- break; // Fallback to another scaler.
- }
- }
- }
- if (i == n) {
- fprintf(stderr, "Selected scaler '%s' does not exist\n",
- Config.scaler);
- }
- }
-
- // Just try them all now, in a buildtime set priority.
- for (i = 0; i < n; i++) {
- if (scalers[i]->canEnable(bpp, w, h)) {
- return scalers[i];
- }
- }
-
- DIE("Can't use any scaler; this shouldn't happen.");
-}
-
static void calculateScreenSize()
{
SDL_SysWMinfo wminfo;
void S9xVideoToggleFullscreen()
{
- Config.fullscreen = !Config.fullscreen;
freeVideoSurface();
+ Config.fullscreen = !Config.fullscreen;
setupVideoSurface();
drawOnscreenControls();
}
projects / drnoksnes / blobdiff