#include "supertux/globals.hpp"
#include "video/color.hpp"
#include "video/sdl/sdl_texture.hpp"
+#include "video/sdl/sdl_renderer.hpp"
+#include "util/log.hpp"
+#include "math/random_generator.hpp"
#include <assert.h>
#include <SDL.h>
-namespace {
-#define BILINEAR
-
-#ifdef NAIVE
-SDL_Surface *scale(SDL_Surface *src, int numerator, int denominator)
-{
- if(numerator == denominator)
- {
- src->refcount++;
- return src;
- }
- else
- {
- SDL_Surface *dst = SDL_CreateRGBSurface(src->flags, src->w * numerator / denominator, src->h * numerator / denominator, src->format->BitsPerPixel, src->format->Rmask, src->format->Gmask, src->format->Bmask, src->format->Amask);
- int bpp = dst->format->BytesPerPixel;
- if(SDL_MUSTLOCK(src))
- {
- SDL_LockSurface(src);
- }
- if(SDL_MUSTLOCK(dst))
- {
- SDL_LockSurface(dst);
- }
- for(int y = 0;y < dst->h;y++) {
- for(int x = 0;x < dst->w;x++) {
- Uint8 *srcpixel = (Uint8 *) src->pixels + (y * denominator / numerator) * src->pitch + (x * denominator / numerator) * bpp;
- Uint8 *dstpixel = (Uint8 *) dst->pixels + y * dst->pitch + x * bpp;
- switch(bpp) {
- case 4:
- dstpixel[3] = srcpixel[3];
- case 3:
- dstpixel[2] = srcpixel[2];
- case 2:
- dstpixel[1] = srcpixel[1];
- case 1:
- dstpixel[0] = srcpixel[0];
- }
- }
- }
- if(SDL_MUSTLOCK(dst))
- {
- SDL_UnlockSurface(dst);
- }
- if(SDL_MUSTLOCK(src))
- {
- SDL_UnlockSurface(src);
- }
- if(!src->format->Amask)
- {
- if(src->flags & SDL_SRCALPHA)
- {
- SDL_SetAlpha(dst, SDL_SRCALPHA | SDL_RLEACCEL, src->format->alpha);
- }
- if(src->flags & SDL_SRCCOLORKEY)
- {
- SDL_SetColorKey(dst, SDL_SRCCOLORKEY | SDL_RLEACCEL, src->format->colorkey);
- }
- }
- return dst;
- }
-} // namespace
-#endif
-
-#ifdef BILINEAR
-void getpixel(SDL_Surface *src, int srcx, int srcy, Uint8 color[4])
-{
- int bpp = src->format->BytesPerPixel;
- if(srcx == src->w)
- {
- srcx--;
- }
- if(srcy == src->h)
- {
- srcy--;
- }
- Uint8 *srcpixel = (Uint8 *) src->pixels + srcy * src->pitch + srcx * bpp;
- Uint32 mapped = 0;
- switch(bpp) {
- case 1:
- mapped = *srcpixel;
- break;
- case 2:
- mapped = *(Uint16 *)srcpixel;
- break;
- case 3:
-#if SDL_BYTEORDER == SDL_BIG_ENDIAN
- mapped |= srcpixel[0] << 16;
- mapped |= srcpixel[1] << 8;
- mapped |= srcpixel[2] << 0;
-#else
- mapped |= srcpixel[0] << 0;
- mapped |= srcpixel[1] << 8;
- mapped |= srcpixel[2] << 16;
-#endif
- break;
- case 4:
- mapped = *(Uint32 *)srcpixel;
- break;
- }
- SDL_GetRGBA(mapped, src->format, &color[0], &color[1], &color[2], &color[3]);
-}
-
-void merge(Uint8 color[4], Uint8 color0[4], Uint8 color1[4], int rem, int total)
-{
- color[0] = (color0[0] * (total - rem) + color1[0] * rem) / total;
- color[1] = (color0[1] * (total - rem) + color1[1] * rem) / total;
- color[2] = (color0[2] * (total - rem) + color1[2] * rem) / total;
- color[3] = (color0[3] * (total - rem) + color1[3] * rem) / total;
-}
-
-SDL_Surface *scale(SDL_Surface *src, int numerator, int denominator)
-{
- if(numerator == denominator)
- {
- src->refcount++;
- return src;
- }
- else
- {
- SDL_Surface *dst = SDL_CreateRGBSurface(src->flags, src->w * numerator / denominator, src->h * numerator / denominator, src->format->BitsPerPixel, src->format->Rmask, src->format->Gmask, src->format->Bmask, src->format->Amask);
- int bpp = dst->format->BytesPerPixel;
- if(SDL_MUSTLOCK(src))
- {
- SDL_LockSurface(src);
- }
- if(SDL_MUSTLOCK(dst))
- {
- SDL_LockSurface(dst);
- }
- for(int y = 0;y < dst->h;y++) {
- for(int x = 0;x < dst->w;x++) {
- int srcx = x * denominator / numerator;
- int srcy = y * denominator / numerator;
- Uint8 color00[4], color01[4], color10[4], color11[4];
- getpixel(src, srcx, srcy, color00);
- getpixel(src, srcx + 1, srcy, color01);
- getpixel(src, srcx, srcy + 1, color10);
- getpixel(src, srcx + 1, srcy + 1, color11);
- Uint8 color0[4], color1[4], color[4];
- int remx = x * denominator % numerator;
- merge(color0, color00, color01, remx, numerator);
- merge(color1, color10, color11, remx, numerator);
- int remy = y * denominator % numerator;
- merge(color, color0, color1, remy, numerator);
- Uint8 *dstpixel = (Uint8 *) dst->pixels + y * dst->pitch + x * bpp;
- Uint32 mapped = SDL_MapRGBA(dst->format, color[0], color[1], color[2], color[3]);
- switch(bpp) {
- case 1:
- *dstpixel = mapped;
- break;
- case 2:
- *(Uint16 *)dstpixel = mapped;
- break;
- case 3:
-#if SDL_BYTEORDER == SDL_BIG_ENDIAN
- dstpixel[0] = (mapped >> 16) & 0xff;
- dstpixel[1] = (mapped >> 8) & 0xff;
- dstpixel[2] = (mapped >> 0) & 0xff;
-#else
- dstpixel[0] = (mapped >> 0) & 0xff;
- dstpixel[1] = (mapped >> 8) & 0xff;
- dstpixel[2] = (mapped >> 16) & 0xff;
-#endif
- break;
- case 4:
- *(Uint32 *)dstpixel = mapped;
- break;
- }
- }
- }
- if(SDL_MUSTLOCK(dst))
- {
- SDL_UnlockSurface(dst);
- }
- if(SDL_MUSTLOCK(src))
- {
- SDL_UnlockSurface(src);
- }
- if(!src->format->Amask)
- {
- if(src->flags & SDL_SRCALPHA)
- {
- SDL_SetAlpha(dst, SDL_SRCALPHA | SDL_RLEACCEL, src->format->alpha);
- }
- if(src->flags & SDL_SRCCOLORKEY)
- {
- SDL_SetColorKey(dst, SDL_SRCCOLORKEY | SDL_RLEACCEL, src->format->colorkey);
- }
- }
- return dst;
- }
-}
-#endif
-
-SDL_Surface *horz_flip(SDL_Surface *src)
-{
- SDL_Surface *dst = SDL_CreateRGBSurface(src->flags, src->w, src->h, src->format->BitsPerPixel, src->format->Rmask, src->format->Gmask, src->format->Bmask, src->format->Amask);
- int bpp = dst->format->BytesPerPixel;
- if(SDL_MUSTLOCK(src))
- {
- SDL_LockSurface(src);
- }
- if(SDL_MUSTLOCK(dst))
- {
- SDL_LockSurface(dst);
- }
- for(int y = 0;y < dst->h;y++) {
- for(int x = 0;x < dst->w;x++) {
- Uint8 *srcpixel = (Uint8 *) src->pixels + y * src->pitch + x * bpp;
- Uint8 *dstpixel = (Uint8 *) dst->pixels + y * dst->pitch + (dst->w - x - 1) * bpp;
- switch(bpp) {
- case 4:
- dstpixel[3] = srcpixel[3];
- case 3:
- dstpixel[2] = srcpixel[2];
- case 2:
- dstpixel[1] = srcpixel[1];
- case 1:
- dstpixel[0] = srcpixel[0];
- }
- }
- }
- if(SDL_MUSTLOCK(dst))
- {
- SDL_UnlockSurface(dst);
- }
- if(SDL_MUSTLOCK(src))
- {
- SDL_UnlockSurface(src);
- }
- if(!src->format->Amask)
- {
- if(src->flags & SDL_SRCALPHA)
- {
- SDL_SetAlpha(dst, SDL_SRCALPHA | SDL_RLEACCEL, src->format->alpha);
- }
- if(src->flags & SDL_SRCCOLORKEY)
- {
- SDL_SetColorKey(dst, SDL_SRCCOLORKEY | SDL_RLEACCEL, src->format->colorkey);
- }
- }
- return dst;
-}
-
-SDL_Surface *vert_flip(SDL_Surface *src)
-{
- SDL_Surface *dst = SDL_CreateRGBSurface(src->flags, src->w, src->h, src->format->BitsPerPixel, src->format->Rmask, src->format->Gmask, src->format->Bmask, src->format->Amask);
- int bpp = dst->format->BytesPerPixel;
- if(SDL_MUSTLOCK(src))
- {
- SDL_LockSurface(src);
- }
- if(SDL_MUSTLOCK(dst))
- {
- SDL_LockSurface(dst);
- }
- for(int y = 0;y < dst->h;y++) {
- for(int x = 0;x < dst->w;x++) {
- Uint8 *srcpixel = (Uint8 *) src->pixels + y * src->pitch + x * bpp;
- Uint8 *dstpixel = (Uint8 *) dst->pixels + (dst->h - y - 1) * dst->pitch + x * bpp;
- switch(bpp) {
- case 4:
- dstpixel[3] = srcpixel[3];
- case 3:
- dstpixel[2] = srcpixel[2];
- case 2:
- dstpixel[1] = srcpixel[1];
- case 1:
- dstpixel[0] = srcpixel[0];
- }
- }
- }
- if(SDL_MUSTLOCK(dst))
- {
- SDL_UnlockSurface(dst);
- }
- if(SDL_MUSTLOCK(src))
- {
- SDL_UnlockSurface(src);
- }
- if(!src->format->Amask)
- {
- if(src->flags & SDL_SRCALPHA)
- {
- SDL_SetAlpha(dst, SDL_SRCALPHA | SDL_RLEACCEL, src->format->alpha);
- }
- if(src->flags & SDL_SRCCOLORKEY)
- {
- SDL_SetColorKey(dst, SDL_SRCCOLORKEY | SDL_RLEACCEL, src->format->colorkey);
- }
- }
- return dst;
-}
-
-SDL_Surface *colorize(SDL_Surface *src, const Color &color)
-{
- // FIXME: This is really slow
- assert(color.red != 1.0 || color.green != 1.0 || color.blue != 1.0);
- int red = (int) (color.red * 256);
- int green = (int) (color.green * 256);
- int blue = (int) (color.blue * 256);
- SDL_Surface *dst = SDL_CreateRGBSurface(src->flags, src->w, src->h, src->format->BitsPerPixel, src->format->Rmask, src->format->Gmask, src->format->Bmask, src->format->Amask);
- int bpp = dst->format->BytesPerPixel;
- if(SDL_MUSTLOCK(src))
- {
- SDL_LockSurface(src);
- }
- if(SDL_MUSTLOCK(dst))
- {
- SDL_LockSurface(dst);
- }
- for(int y = 0;y < dst->h;y++) {
- for(int x = 0;x < dst->w;x++) {
- Uint8 *srcpixel = (Uint8 *) src->pixels + y * src->pitch + x * bpp;
- Uint8 *dstpixel = (Uint8 *) dst->pixels + y * dst->pitch + x * bpp;
- Uint32 mapped = 0;
- switch(bpp) {
- case 1:
- mapped = *srcpixel;
- break;
- case 2:
- mapped = *(Uint16 *)srcpixel;
- break;
- case 3:
-#if SDL_BYTEORDER == SDL_BIG_ENDIAN
- mapped |= srcpixel[0] << 16;
- mapped |= srcpixel[1] << 8;
- mapped |= srcpixel[2] << 0;
-#else
- mapped |= srcpixel[0] << 0;
- mapped |= srcpixel[1] << 8;
- mapped |= srcpixel[2] << 16;
-#endif
- break;
- case 4:
- mapped = *(Uint32 *)srcpixel;
- break;
- }
- if(src->format->Amask || !(src->flags & SDL_SRCCOLORKEY) || mapped != src->format->colorkey)
- {
- Uint8 r, g, b, a;
- SDL_GetRGBA(mapped, src->format, &r, &g, &b, &a);
- mapped = SDL_MapRGBA(dst->format, (r * red) >> 8, (g * green) >> 8, (b * blue) >> 8, a);
- }
- switch(bpp) {
- case 1:
- *dstpixel = mapped;
- break;
- case 2:
- *(Uint16 *)dstpixel = mapped;
- break;
- case 3:
-#if SDL_BYTEORDER == SDL_BIG_ENDIAN
- dstpixel[0] = (mapped >> 16) & 0xff;
- dstpixel[1] = (mapped >> 8) & 0xff;
- dstpixel[2] = (mapped >> 0) & 0xff;
-#else
- dstpixel[0] = (mapped >> 0) & 0xff;
- dstpixel[1] = (mapped >> 8) & 0xff;
- dstpixel[2] = (mapped >> 16) & 0xff;
-#endif
- break;
- case 4:
- *(Uint32 *)dstpixel = mapped;
- break;
- }
- }
- }
- if(SDL_MUSTLOCK(dst))
- {
- SDL_UnlockSurface(dst);
- }
- if(SDL_MUSTLOCK(src))
- {
- SDL_UnlockSurface(src);
- }
- if(!src->format->Amask)
- {
- if(src->flags & SDL_SRCALPHA)
- {
- SDL_SetAlpha(dst, SDL_SRCALPHA | SDL_RLEACCEL, src->format->alpha);
- }
- if(src->flags & SDL_SRCCOLORKEY)
- {
- SDL_SetColorKey(dst, SDL_SRCCOLORKEY | SDL_RLEACCEL, src->format->colorkey);
- }
- }
- return dst;
-}
-
-SDL_Surface *optimize(SDL_Surface *src)
+SDLTexture::SDLTexture(SDL_Surface* image) :
+ m_texture(),
+ m_width(),
+ m_height()
{
- if(!src->format->Amask)
- {
- return SDL_DisplayFormat(src);
- }
- else
+ m_texture = SDL_CreateTextureFromSurface(static_cast<SDLRenderer&>(VideoSystem::current()->get_renderer()).get_sdl_renderer(),
+ image);
+ if (!m_texture)
{
- int bpp;
- bool colors[(1 << 12)];
- memset(colors, 0, (1 << 12) * sizeof(bool));
-#if 0
- int transparent = 0;
- int opaque = 0;
- int semitransparent = 0;
- int alphasum = 0;
- int squaredalphasum = 0;
-
- int bpp = src->format->BytesPerPixel;
- if(SDL_MUSTLOCK(src))
- {
- SDL_LockSurface(src);
- }
- for(int y = 0;y < src->h;y++) {
- for(int x = 0;x < src->w;x++) {
- Uint8 *pixel = (Uint8 *) src->pixels + y * src->pitch + x * bpp;
- Uint32 mapped = 0;
- switch(bpp) {
- case 1:
- mapped = *pixel;
- break;
- case 2:
- mapped = *(Uint16 *)pixel;
- break;
- case 3:
-#if SDL_BYTEORDER == SDL_BIG_ENDIAN
- mapped |= pixel[0] << 16;
- mapped |= pixel[1] << 8;
- mapped |= pixel[2] << 0;
-#else
- mapped |= pixel[0] << 0;
- mapped |= pixel[1] << 8;
- mapped |= pixel[2] << 16;
-#endif
- break;
- case 4:
- mapped = *(Uint32 *)pixel;
- break;
- }
- Uint8 red, green, blue, alpha;
- SDL_GetRGBA(mapped, src->format, &red, &green, &blue, &alpha);
- if(alpha < 16)
- {
- transparent++;
- }
- else if (alpha > 240)
- {
- opaque++;
- alphasum += alpha;
- squaredalphasum += alpha * alpha;
- }
- else
- {
- semitransparent++;
- squaredalphasum += alpha * alpha;
- }
- if(alpha != 0)
- {
- colors[((red & 0xf0) << 4) | (green & 0xf0) | ((blue & 0xf0) >> 4)] = true;
- }
- }
- }
- if(SDL_MUSTLOCK(src))
- {
- SDL_UnlockSurface(src);
- }
- int avgalpha = (opaque + semitransparent) ? alphasum / (opaque + semitransparent) : 0;
- int avgsquaredalpha = (opaque + semitransparent) ? squaredalphasum / (opaque + semitransparent) : 0;
- int alphavariance = avgsquaredalpha - avgalpha * avgalpha;
- if(semitransparent > ((transparent + opaque + semitransparent) / 8) && alphavariance > 16)
- {
- return SDL_DisplayFormatAlpha(src);
- }
-#endif
- int keycolor = -1;
- for(int i = 0;i < (1 << 12);i++)
- {
- if(!colors[i])
- {
- keycolor = i;
- }
- }
- if(keycolor == -1)
- {
- return SDL_DisplayFormatAlpha(src);
- }
- SDL_Surface *dst = SDL_CreateRGBSurface(src->flags & ~(SDL_SRCALPHA), src->w, src->h, src->format->BitsPerPixel, src->format->Rmask, src->format->Gmask, src->format->Bmask, 0);
- bpp = dst->format->BytesPerPixel;
- Uint32 key = SDL_MapRGB(dst->format, (((keycolor & 0xf00) >> 4) | 0xf), ((keycolor & 0xf0) | 0xf), (((keycolor & 0xf) << 4) | 0xf));
- if(SDL_MUSTLOCK(src))
- {
- SDL_LockSurface(src);
- }
- if(SDL_MUSTLOCK(dst))
- {
- SDL_LockSurface(dst);
- }
- for(int y = 0;y < dst->h;y++) {
- for(int x = 0;x < dst->w;x++) {
- Uint8 *srcpixel = (Uint8 *) src->pixels + y * src->pitch + x * bpp;
- Uint8 *dstpixel = (Uint8 *) dst->pixels + y * dst->pitch + x * bpp;
- Uint32 mapped = 0;
- switch(bpp) {
- case 1:
- mapped = *srcpixel;
- break;
- case 2:
- mapped = *(Uint16 *)srcpixel;
- break;
- case 3:
-#if SDL_BYTEORDER == SDL_BIG_ENDIAN
- mapped |= srcpixel[0] << 16;
- mapped |= srcpixel[1] << 8;
- mapped |= srcpixel[2] << 0;
-#else
- mapped |= srcpixel[0] << 0;
- mapped |= srcpixel[1] << 8;
- mapped |= srcpixel[2] << 16;
-#endif
- break;
- case 4:
- mapped = *(Uint32 *)srcpixel;
- break;
- }
- Uint8 red, green, blue, alpha;
- SDL_GetRGBA(mapped, src->format, &red, &green, &blue, &alpha);
- //if(alpha < (avgalpha / 4))
- if(alpha < 8)
- {
- mapped = key;
- }
- else
- {
- mapped = SDL_MapRGB(dst->format, red, green, blue);
- }
- switch(bpp) {
- case 1:
- *dstpixel = mapped;
- break;
- case 2:
- *(Uint16 *)dstpixel = mapped;
- break;
- case 3:
-#if SDL_BYTEORDER == SDL_BIG_ENDIAN
- dstpixel[0] = (mapped >> 16) & 0xff;
- dstpixel[1] = (mapped >> 8) & 0xff;
- dstpixel[2] = (mapped >> 0) & 0xff;
-#else
- dstpixel[0] = (mapped >> 0) & 0xff;
- dstpixel[1] = (mapped >> 8) & 0xff;
- dstpixel[2] = (mapped >> 16) & 0xff;
-#endif
- break;
- case 4:
- *(Uint32 *)dstpixel = mapped;
- break;
- }
- }
- }
- if(SDL_MUSTLOCK(dst))
- {
- SDL_UnlockSurface(dst);
- }
- if(SDL_MUSTLOCK(src))
- {
- SDL_UnlockSurface(src);
- }
- /*
- if(avgalpha < 240)
- {
- SDL_SetAlpha(dst, SDL_SRCALPHA | SDL_RLEACCEL, avgalpha);
- }
- */
- SDL_SetColorKey(dst, SDL_SRCCOLORKEY | SDL_RLEACCEL, key);
- SDL_Surface *convert = SDL_DisplayFormat(dst);
- SDL_FreeSurface(dst);
- return convert;
+ std::ostringstream msg;
+ msg << "couldn't create texture: " << SDL_GetError();
+ throw std::runtime_error(msg.str());
}
-}
-}
-SDLTexture::SDLTexture(SDL_Surface* image) :
- texture()
-{
- texture = optimize(image);
- //width = texture->w;
- //height = texture->h;
- int numerator = 1;
- int denominator = 1;
- //FIXME: float xfactor = (float) config->screenwidth / SCREEN_WIDTH;
- //FIXME: float yfactor = (float) config->screenheight / SCREEN_HEIGHT;
- /* FIXME:
- if(xfactor < yfactor)
- {
- numerator = config->screenwidth;
- denominator = SCREEN_WIDTH;
- }
- else
- {
- numerator = config->screenheight;
- denominator = SCREEN_HEIGHT;
- }
- */
- cache[NO_EFFECT][Color::WHITE] = scale(texture, numerator, denominator);
+ m_width = image->w;
+ m_height = image->h;
}
SDLTexture::~SDLTexture()
{
- SDL_FreeSurface(texture);
-}
-
-SDL_Surface*
-SDLTexture::get_transform(const Color &color, DrawingEffect effect)
-{
- if(cache[NO_EFFECT][color] == 0) {
- assert(cache[NO_EFFECT][Color::WHITE]);
- cache[NO_EFFECT][color] = colorize(cache[NO_EFFECT][Color::WHITE], color);
- }
- if(cache[effect][color] == 0) {
- assert(cache[NO_EFFECT][color]);
- switch(effect) {
- case NO_EFFECT:
- break;
- case HORIZONTAL_FLIP:
- cache[HORIZONTAL_FLIP][color] = horz_flip(cache[NO_EFFECT][color]);
- break;
- case VERTICAL_FLIP:
- cache[VERTICAL_FLIP][color] = vert_flip(cache[NO_EFFECT][color]);
- break;
- default:
- return 0;
- }
- }
- return cache[effect][color];
+ SDL_DestroyTexture(m_texture);
}
/* EOF */
projects / supertux.git / blobdiff