|
@@ -36,84 +36,6 @@
|
|
|
#define FP_BITS 1
|
|
|
|
|
|
|
|
|
-#define COLOR_EQ(c1, c2) ((c1).r == (c2).r && (c1).g == (c2).g && (c1).b == (c2).b && (c1).a == (c2).a)
|
|
|
-
|
|
|
-static void SDL_BlitTriangle_Slow(SDL_BlitInfo * info,
|
|
|
- SDL_Point s2_x_area, SDL_Rect dstrect, int area, int bias_w0, int bias_w1, int bias_w2,
|
|
|
- int d2d1_y, int d1d2_x, int d0d2_y, int d2d0_x, int d1d0_y, int d0d1_x,
|
|
|
- int s2s0_x, int s2s1_x, int s2s0_y, int s2s1_y, int w0_row, int w1_row, int w2_row,
|
|
|
- SDL_Color c0, SDL_Color c1, SDL_Color c2, int is_uniform);
|
|
|
-
|
|
|
-#if 0
|
|
|
-int SDL_BlitTriangle(SDL_Surface *src, const SDL_Point srcpoints[3], SDL_Surface *dst, const SDL_Point dstpoints[3])
|
|
|
-{
|
|
|
- int i;
|
|
|
- SDL_Point points[6];
|
|
|
-
|
|
|
- if (src == NULL || dst == NULL) {
|
|
|
- return -1;
|
|
|
- }
|
|
|
-
|
|
|
- for (i = 0; i < 3; i++) {
|
|
|
- if (srcpoints[i].x < 0 || srcpoints[i].y < 0 || srcpoints[i].x >= src->w || srcpoints[i].y >= src->h) {
|
|
|
- return SDL_SetError("Values of 'srcpoints' out of bounds");
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- points[0] = srcpoints[0];
|
|
|
- points[1] = dstpoints[0];
|
|
|
- points[2] = srcpoints[1];
|
|
|
- points[3] = dstpoints[1];
|
|
|
- points[4] = srcpoints[2];
|
|
|
- points[5] = dstpoints[2];
|
|
|
- for (i = 0; i < 3; i++) {
|
|
|
- PS2_trianglepoint_2_fixedpoint(&points[2 * i + 1]);
|
|
|
- }
|
|
|
- return SDL_PS2_BlitTriangle(src, dst, points);
|
|
|
-}
|
|
|
-
|
|
|
-int SDL_FillTriangle(SDL_Surface *dst, const SDL_Point points[3], Uint32 color)
|
|
|
-{
|
|
|
- int i;
|
|
|
- SDL_Point points_tmp[3];
|
|
|
- if (dst == NULL) {
|
|
|
- return -1;
|
|
|
- }
|
|
|
- for (i = 0; i < 3; i++) {
|
|
|
- points_tmp[i] = points[i];
|
|
|
- PS2_trianglepoint_2_fixedpoint(&points_tmp[i]);
|
|
|
- }
|
|
|
- return SDL_PS2_FillTriangle(dst, points_tmp, SDL_BLENDMODE_NONE, color);
|
|
|
-}
|
|
|
-#endif
|
|
|
-
|
|
|
-/* cross product AB x AC */
|
|
|
-static int cross_product(const SDL_Point *a, const SDL_Point *b, int c_x, int c_y)
|
|
|
-{
|
|
|
- return (b->x - a->x) * (c_y - a->y) - (b->y - a->y) * (c_x - a->x);
|
|
|
-}
|
|
|
-
|
|
|
-/* check for top left rules */
|
|
|
-static int is_top_left(const SDL_Point *a, const SDL_Point *b, int is_clockwise)
|
|
|
-{
|
|
|
- if (is_clockwise) {
|
|
|
- if (a->y == b->y && a->x < b->x) {
|
|
|
- return 1;
|
|
|
- }
|
|
|
- if (b->y < a->y) {
|
|
|
- return 1;
|
|
|
- }
|
|
|
- } else {
|
|
|
- if (a->y == b->y && b->x < a->x) {
|
|
|
- return 1;
|
|
|
- }
|
|
|
- if (a->y < b->y) {
|
|
|
- return 1;
|
|
|
- }
|
|
|
- }
|
|
|
- return 0;
|
|
|
-}
|
|
|
-
|
|
|
void PS2_trianglepoint_2_fixedpoint(SDL_Point *a) {
|
|
|
a->x <<= FP_BITS;
|
|
|
a->y <<= FP_BITS;
|
|
@@ -202,687 +124,6 @@ static void bounding_rect(const SDL_Point *a, const SDL_Point *b, const SDL_Poin
|
|
|
} \
|
|
|
} \
|
|
|
|
|
|
-int SDL_PS2_FillTriangle(SDL_Surface *dst, SDL_Point *d0, SDL_Point *d1, SDL_Point *d2, SDL_BlendMode blend, SDL_Color c0, SDL_Color c1, SDL_Color c2)
|
|
|
-{
|
|
|
- int ret = 0;
|
|
|
- int dst_locked = 0;
|
|
|
-
|
|
|
- SDL_Rect dstrect;
|
|
|
-
|
|
|
- int dstbpp;
|
|
|
- Uint8 *dst_ptr;
|
|
|
- int dst_pitch;
|
|
|
-
|
|
|
- int area, is_clockwise;
|
|
|
-
|
|
|
- int d2d1_y, d1d2_x, d0d2_y, d2d0_x, d1d0_y, d0d1_x;
|
|
|
- int w0_row, w1_row, w2_row;
|
|
|
- int bias_w0, bias_w1, bias_w2;
|
|
|
-
|
|
|
- int is_uniform;
|
|
|
-
|
|
|
- SDL_Surface *tmp = NULL;
|
|
|
-
|
|
|
- if (dst == NULL) {
|
|
|
- return -1;
|
|
|
- }
|
|
|
-
|
|
|
- area = cross_product(d0, d1, d2->x, d2->y);
|
|
|
-
|
|
|
- is_uniform = COLOR_EQ(c0, c1) && COLOR_EQ(c1, c2);
|
|
|
-
|
|
|
- /* Flat triangle */
|
|
|
- if (area == 0) {
|
|
|
- return 0;
|
|
|
- }
|
|
|
-
|
|
|
- /* Lock the destination, if needed */
|
|
|
- if (SDL_MUSTLOCK(dst)) {
|
|
|
- if (SDL_LockSurface(dst) < 0) {
|
|
|
- ret = -1;
|
|
|
- goto end;
|
|
|
- } else {
|
|
|
- dst_locked = 1;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- bounding_rect_fixedpoint(d0, d1, d2, &dstrect);
|
|
|
-
|
|
|
- {
|
|
|
- /* Clip triangle rect with surface rect */
|
|
|
- SDL_Rect rect;
|
|
|
- rect.x = 0;
|
|
|
- rect.y = 0;
|
|
|
- rect.w = dst->w;
|
|
|
- rect.h = dst->h;
|
|
|
- SDL_IntersectRect(&dstrect, &rect, &dstrect);
|
|
|
- }
|
|
|
-
|
|
|
- {
|
|
|
- /* Clip triangle with surface clip rect */
|
|
|
- SDL_Rect rect;
|
|
|
- SDL_GetClipRect(dst, &rect);
|
|
|
- SDL_IntersectRect(&dstrect, &rect, &dstrect);
|
|
|
- }
|
|
|
-
|
|
|
-
|
|
|
- if (blend != SDL_BLENDMODE_NONE) {
|
|
|
- int format = dst->format->format;
|
|
|
-
|
|
|
- /* need an alpha format */
|
|
|
- if (! dst->format->Amask) {
|
|
|
- format = SDL_PIXELFORMAT_ARGB8888;
|
|
|
- }
|
|
|
-
|
|
|
- /* Use an intermediate surface */
|
|
|
- tmp = SDL_CreateRGBSurfaceWithFormat(0, dstrect.w, dstrect.h, 0, format);
|
|
|
- if (tmp == NULL) {
|
|
|
- ret = -1;
|
|
|
- goto end;
|
|
|
- }
|
|
|
-
|
|
|
- if (blend == SDL_BLENDMODE_MOD) {
|
|
|
- Uint32 c = SDL_MapRGBA(tmp->format, 255, 255, 255, 255);
|
|
|
- SDL_FillRect(tmp, NULL, c);
|
|
|
- }
|
|
|
-
|
|
|
- SDL_SetSurfaceBlendMode(tmp, blend);
|
|
|
-
|
|
|
- dstbpp = tmp->format->BytesPerPixel;
|
|
|
- dst_ptr = tmp->pixels;
|
|
|
- dst_pitch = tmp->pitch;
|
|
|
-
|
|
|
- } else {
|
|
|
- /* Write directly to destination surface */
|
|
|
- dstbpp = dst->format->BytesPerPixel;
|
|
|
- dst_ptr = (Uint8 *)dst->pixels + dstrect.x * dstbpp + dstrect.y * dst->pitch;
|
|
|
- dst_pitch = dst->pitch;
|
|
|
- }
|
|
|
-
|
|
|
- is_clockwise = area > 0;
|
|
|
- area = SDL_abs(area);
|
|
|
-
|
|
|
- d2d1_y = (d1->y - d2->y) << FP_BITS;
|
|
|
- d0d2_y = (d2->y - d0->y) << FP_BITS;
|
|
|
- d1d0_y = (d0->y - d1->y) << FP_BITS;
|
|
|
- d1d2_x = (d2->x - d1->x) << FP_BITS;
|
|
|
- d2d0_x = (d0->x - d2->x) << FP_BITS;
|
|
|
- d0d1_x = (d1->x - d0->x) << FP_BITS;
|
|
|
-
|
|
|
- /* Starting point for rendering, at the middle of a pixel */
|
|
|
- {
|
|
|
- SDL_Point p;
|
|
|
- p.x = dstrect.x;
|
|
|
- p.y = dstrect.y;
|
|
|
- PS2_trianglepoint_2_fixedpoint(&p);
|
|
|
- p.x += (1 << FP_BITS) / 2;
|
|
|
- p.y += (1 << FP_BITS) / 2;
|
|
|
- w0_row = cross_product(d1, d2, p.x, p.y);
|
|
|
- w1_row = cross_product(d2, d0, p.x, p.y);
|
|
|
- w2_row = cross_product(d0, d1, p.x, p.y);
|
|
|
- }
|
|
|
-
|
|
|
- /* Handle anti-clockwise triangles */
|
|
|
- if (! is_clockwise) {
|
|
|
- d2d1_y *= -1;
|
|
|
- d0d2_y *= -1;
|
|
|
- d1d0_y *= -1;
|
|
|
- d1d2_x *= -1;
|
|
|
- d2d0_x *= -1;
|
|
|
- d0d1_x *= -1;
|
|
|
- w0_row *= -1;
|
|
|
- w1_row *= -1;
|
|
|
- w2_row *= -1;
|
|
|
- }
|
|
|
-
|
|
|
- /* Add a bias to respect top-left rasterization rule */
|
|
|
- bias_w0 = (is_top_left(d1, d2, is_clockwise) ? 0 : -1);
|
|
|
- bias_w1 = (is_top_left(d2, d0, is_clockwise) ? 0 : -1);
|
|
|
- bias_w2 = (is_top_left(d0, d1, is_clockwise) ? 0 : -1);
|
|
|
-
|
|
|
- if (is_uniform) {
|
|
|
- Uint32 color;
|
|
|
- if (tmp) {
|
|
|
- if (dst->format->Amask) {
|
|
|
- color = SDL_MapRGBA(tmp->format, c0.r, c0.g, c0.b, c0.a);
|
|
|
- } else {
|
|
|
- //color = SDL_MapRGB(tmp->format, c0.r, c0.g, c0.b);
|
|
|
- color = SDL_MapRGBA(tmp->format, c0.r, c0.g, c0.b, c0.a);
|
|
|
- }
|
|
|
- } else {
|
|
|
- color = SDL_MapRGBA(dst->format, c0.r, c0.g, c0.b, c0.a);
|
|
|
- }
|
|
|
-
|
|
|
- if (dstbpp == 4) {
|
|
|
- TRIANGLE_BEGIN_LOOP
|
|
|
- {
|
|
|
- *(Uint32 *)dptr = color;
|
|
|
- }
|
|
|
- TRIANGLE_END_LOOP
|
|
|
- } else if (dstbpp == 3) {
|
|
|
- TRIANGLE_BEGIN_LOOP
|
|
|
- {
|
|
|
- Uint8 *s = (Uint8*)&color;
|
|
|
- dptr[0] = s[0];
|
|
|
- dptr[1] = s[1];
|
|
|
- dptr[2] = s[2];
|
|
|
- }
|
|
|
- TRIANGLE_END_LOOP
|
|
|
- } else if (dstbpp == 2) {
|
|
|
- TRIANGLE_BEGIN_LOOP
|
|
|
- {
|
|
|
- *(Uint16 *)dptr = color;
|
|
|
- }
|
|
|
- TRIANGLE_END_LOOP
|
|
|
- } else if (dstbpp == 1) {
|
|
|
- TRIANGLE_BEGIN_LOOP
|
|
|
- {
|
|
|
- *dptr = color;
|
|
|
- }
|
|
|
- TRIANGLE_END_LOOP
|
|
|
- }
|
|
|
- } else {
|
|
|
- SDL_PixelFormat *format = dst->format;
|
|
|
- if (tmp) {
|
|
|
- format = tmp->format;
|
|
|
- }
|
|
|
- if (dstbpp == 4) {
|
|
|
- TRIANGLE_BEGIN_LOOP
|
|
|
- {
|
|
|
- TRIANGLE_GET_MAPPED_COLOR
|
|
|
- *(Uint32 *)dptr = color;
|
|
|
- }
|
|
|
- TRIANGLE_END_LOOP
|
|
|
- } else if (dstbpp == 3) {
|
|
|
- TRIANGLE_BEGIN_LOOP
|
|
|
- {
|
|
|
- TRIANGLE_GET_MAPPED_COLOR
|
|
|
- Uint8 *s = (Uint8*)&color;
|
|
|
- dptr[0] = s[0];
|
|
|
- dptr[1] = s[1];
|
|
|
- dptr[2] = s[2];
|
|
|
- }
|
|
|
- TRIANGLE_END_LOOP
|
|
|
- } else if (dstbpp == 2) {
|
|
|
- TRIANGLE_BEGIN_LOOP
|
|
|
- {
|
|
|
- TRIANGLE_GET_MAPPED_COLOR
|
|
|
- *(Uint16 *)dptr = color;
|
|
|
- }
|
|
|
- TRIANGLE_END_LOOP
|
|
|
- } else if (dstbpp == 1) {
|
|
|
- TRIANGLE_BEGIN_LOOP
|
|
|
- {
|
|
|
- TRIANGLE_GET_MAPPED_COLOR
|
|
|
- *dptr = color;
|
|
|
- }
|
|
|
- TRIANGLE_END_LOOP
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- if (tmp) {
|
|
|
- SDL_BlitSurface(tmp, NULL, dst, &dstrect);
|
|
|
- SDL_FreeSurface(tmp);
|
|
|
- }
|
|
|
-
|
|
|
-end:
|
|
|
- if (dst_locked) {
|
|
|
- SDL_UnlockSurface(dst);
|
|
|
- }
|
|
|
-
|
|
|
- return ret;
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-
|
|
|
-
|
|
|
-
|
|
|
-
|
|
|
-
|
|
|
-int SDL_PS2_BlitTriangle(
|
|
|
- SDL_Surface *src,
|
|
|
- SDL_Point *s0, SDL_Point *s1, SDL_Point *s2,
|
|
|
- SDL_Surface *dst,
|
|
|
- SDL_Point *d0, SDL_Point *d1, SDL_Point *d2,
|
|
|
- SDL_Color c0, SDL_Color c1, SDL_Color c2)
|
|
|
-{
|
|
|
- int ret = 0;
|
|
|
- int src_locked = 0;
|
|
|
- int dst_locked = 0;
|
|
|
-
|
|
|
- SDL_BlendMode blend;
|
|
|
-
|
|
|
- SDL_Rect dstrect;
|
|
|
-
|
|
|
- SDL_Point s2_x_area;
|
|
|
-
|
|
|
- int dstbpp;
|
|
|
- Uint8 *dst_ptr;
|
|
|
- int dst_pitch;
|
|
|
-
|
|
|
- int *src_ptr;
|
|
|
- int src_pitch;
|
|
|
-
|
|
|
- int area, is_clockwise;
|
|
|
-
|
|
|
- int d2d1_y, d1d2_x, d0d2_y, d2d0_x, d1d0_y, d0d1_x;
|
|
|
- int s2s0_x, s2s1_x, s2s0_y, s2s1_y;
|
|
|
-
|
|
|
- int w0_row, w1_row, w2_row;
|
|
|
- int bias_w0, bias_w1, bias_w2;
|
|
|
-
|
|
|
- int is_uniform;
|
|
|
-
|
|
|
- int has_modulation;
|
|
|
-
|
|
|
- if (src == NULL || dst == NULL) {
|
|
|
- return -1;
|
|
|
- }
|
|
|
-
|
|
|
- area = cross_product(d0, d1, d2->x, d2->y);
|
|
|
-
|
|
|
- /* Flat triangle */
|
|
|
- if (area == 0) {
|
|
|
- return 0;
|
|
|
- }
|
|
|
-
|
|
|
- /* Lock the destination, if needed */
|
|
|
- if (SDL_MUSTLOCK(dst)) {
|
|
|
- if (SDL_LockSurface(dst) < 0) {
|
|
|
- ret = -1;
|
|
|
- goto end;
|
|
|
- } else {
|
|
|
- dst_locked = 1;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- /* Lock the source, if needed */
|
|
|
- if (SDL_MUSTLOCK(src)) {
|
|
|
- if (SDL_LockSurface(src) < 0) {
|
|
|
- ret = -1;
|
|
|
- goto end;
|
|
|
- } else {
|
|
|
- src_locked = 1;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- is_uniform = COLOR_EQ(c0, c1) && COLOR_EQ(c1, c2);
|
|
|
-
|
|
|
- bounding_rect_fixedpoint(d0, d1, d2, &dstrect);
|
|
|
-
|
|
|
- SDL_GetSurfaceBlendMode(src, &blend);
|
|
|
-
|
|
|
- /* TRIANGLE_GET_TEXTCOORD interpolates up to the max values included, so reduce by 1 */
|
|
|
- {
|
|
|
- SDL_Rect srcrect;
|
|
|
- int maxx, maxy;
|
|
|
- bounding_rect(s0, s1, s2, &srcrect);
|
|
|
- maxx = srcrect.x + srcrect.w;
|
|
|
- maxy = srcrect.y + srcrect.h;
|
|
|
- if (srcrect.w > 0) {
|
|
|
- if (s0->x == maxx) s0->x--;
|
|
|
- if (s1->x == maxx) s1->x--;
|
|
|
- if (s2->x == maxx) s2->x--;
|
|
|
- }
|
|
|
- if (srcrect.h > 0) {
|
|
|
- if (s0->y == maxy) s0->y--;
|
|
|
- if (s1->y == maxy) s1->y--;
|
|
|
- if (s2->y == maxy) s2->y--;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- if (is_uniform) {
|
|
|
- // SDL_GetSurfaceColorMod(src, &r, &g, &b);
|
|
|
- has_modulation = c0.r != 255 || c0.g != 255 || c0.b != 255 || c0.a != 255;;
|
|
|
- } else {
|
|
|
- has_modulation = SDL_TRUE;
|
|
|
- }
|
|
|
-
|
|
|
- {
|
|
|
- /* Clip triangle rect with surface rect */
|
|
|
- SDL_Rect rect;
|
|
|
- rect.x = 0;
|
|
|
- rect.y = 0;
|
|
|
- rect.w = dst->w;
|
|
|
- rect.h = dst->h;
|
|
|
-
|
|
|
- SDL_IntersectRect(&dstrect, &rect, &dstrect);
|
|
|
- }
|
|
|
-
|
|
|
- {
|
|
|
- /* Clip triangle with surface clip rect */
|
|
|
- SDL_Rect rect;
|
|
|
- SDL_GetClipRect(dst, &rect);
|
|
|
- SDL_IntersectRect(&dstrect, &rect, &dstrect);
|
|
|
- }
|
|
|
-
|
|
|
- /* Set destination pointer */
|
|
|
- dstbpp = dst->format->BytesPerPixel;
|
|
|
- dst_ptr = (Uint8 *)dst->pixels + dstrect.x * dstbpp + dstrect.y * dst->pitch;
|
|
|
- dst_pitch = dst->pitch;
|
|
|
-
|
|
|
- /* Set source pointer */
|
|
|
- src_ptr = src->pixels;
|
|
|
- src_pitch = src->pitch;
|
|
|
-
|
|
|
- is_clockwise = area > 0;
|
|
|
- area = SDL_abs(area);
|
|
|
-
|
|
|
- d2d1_y = (d1->y - d2->y) << FP_BITS;
|
|
|
- d0d2_y = (d2->y - d0->y) << FP_BITS;
|
|
|
- d1d0_y = (d0->y - d1->y) << FP_BITS;
|
|
|
-
|
|
|
-
|
|
|
- d1d2_x = (d2->x - d1->x) << FP_BITS;
|
|
|
- d2d0_x = (d0->x - d2->x) << FP_BITS;
|
|
|
- d0d1_x = (d1->x - d0->x) << FP_BITS;
|
|
|
-
|
|
|
- s2s0_x = s0->x - s2->x;
|
|
|
- s2s1_x = s1->x - s2->x;
|
|
|
- s2s0_y = s0->y - s2->y;
|
|
|
- s2s1_y = s1->y - s2->y;
|
|
|
-
|
|
|
- /* Starting point for rendering, at the middle of a pixel */
|
|
|
- {
|
|
|
- SDL_Point p;
|
|
|
- p.x = dstrect.x;
|
|
|
- p.y = dstrect.y;
|
|
|
- PS2_trianglepoint_2_fixedpoint(&p);
|
|
|
- p.x += (1 << FP_BITS) / 2;
|
|
|
- p.y += (1 << FP_BITS) / 2;
|
|
|
- w0_row = cross_product(d1, d2, p.x, p.y);
|
|
|
- w1_row = cross_product(d2, d0, p.x, p.y);
|
|
|
- w2_row = cross_product(d0, d1, p.x, p.y);
|
|
|
- }
|
|
|
-
|
|
|
- /* Handle anti-clockwise triangles */
|
|
|
- if (! is_clockwise) {
|
|
|
- d2d1_y *= -1;
|
|
|
- d0d2_y *= -1;
|
|
|
- d1d0_y *= -1;
|
|
|
- d1d2_x *= -1;
|
|
|
- d2d0_x *= -1;
|
|
|
- d0d1_x *= -1;
|
|
|
- w0_row *= -1;
|
|
|
- w1_row *= -1;
|
|
|
- w2_row *= -1;
|
|
|
- }
|
|
|
-
|
|
|
- /* Add a bias to respect top-left rasterization rule */
|
|
|
- bias_w0 = (is_top_left(d1, d2, is_clockwise) ? 0 : -1);
|
|
|
- bias_w1 = (is_top_left(d2, d0, is_clockwise) ? 0 : -1);
|
|
|
- bias_w2 = (is_top_left(d0, d1, is_clockwise) ? 0 : -1);
|
|
|
-
|
|
|
- /* precompute constant 's2->x * area' used in TRIANGLE_GET_TEXTCOORD */
|
|
|
- s2_x_area.x = s2->x * area;
|
|
|
- s2_x_area.y = s2->y * area;
|
|
|
-
|
|
|
- if (blend != SDL_BLENDMODE_NONE || src->format->format != dst->format->format || has_modulation || ! is_uniform) {
|
|
|
- /* Use SDL_BlitTriangle_Slow */
|
|
|
-
|
|
|
- SDL_BlitInfo *info = &src->map->info;
|
|
|
- SDL_BlitInfo tmp_info;
|
|
|
-
|
|
|
- SDL_zero(tmp_info);
|
|
|
-
|
|
|
- tmp_info.src_fmt = src->format;
|
|
|
- tmp_info.dst_fmt = dst->format;
|
|
|
- tmp_info.flags = info->flags;
|
|
|
- /*
|
|
|
- tmp_info.r = info->r;
|
|
|
- tmp_info.g = info->g;
|
|
|
- tmp_info.b = info->b;
|
|
|
- tmp_info.a = info->a;
|
|
|
- */
|
|
|
- tmp_info.r = c0.r;
|
|
|
- tmp_info.g = c0.g;
|
|
|
- tmp_info.b = c0.b;
|
|
|
- tmp_info.a = c0.a;
|
|
|
-
|
|
|
-
|
|
|
- tmp_info.flags &= ~(SDL_COPY_MODULATE_COLOR | SDL_COPY_MODULATE_ALPHA);
|
|
|
-
|
|
|
- if (c0.r != 255 || c1.r != 255 || c2.r != 255 ||
|
|
|
- c0.g != 255 || c1.g != 255 || c2.g != 255 ||
|
|
|
- c0.b != 255 || c1.b != 255 || c2.b != 255) {
|
|
|
- tmp_info.flags |= SDL_COPY_MODULATE_COLOR;
|
|
|
- }
|
|
|
-
|
|
|
- if (c0.a != 255 || c1.a != 255 || c2.a != 255) {
|
|
|
- tmp_info.flags |= SDL_COPY_MODULATE_ALPHA;
|
|
|
- }
|
|
|
-
|
|
|
- tmp_info.colorkey = info->colorkey;
|
|
|
-
|
|
|
- /* src */
|
|
|
- tmp_info.src = (Uint8 *) src_ptr;
|
|
|
- tmp_info.src_pitch = src_pitch;
|
|
|
-
|
|
|
- /* dst */
|
|
|
- tmp_info.dst = (Uint8 *) dst_ptr;
|
|
|
- tmp_info.dst_pitch = dst_pitch;
|
|
|
-
|
|
|
- SDL_BlitTriangle_Slow(&tmp_info, s2_x_area, dstrect, area, bias_w0, bias_w1, bias_w2,
|
|
|
- d2d1_y, d1d2_x, d0d2_y, d2d0_x, d1d0_y, d0d1_x,
|
|
|
- s2s0_x, s2s1_x, s2s0_y, s2s1_y, w0_row, w1_row, w2_row,
|
|
|
- c0, c1, c2, is_uniform);
|
|
|
-
|
|
|
- goto end;
|
|
|
- }
|
|
|
-
|
|
|
- if (dstbpp == 4) {
|
|
|
- TRIANGLE_BEGIN_LOOP
|
|
|
- {
|
|
|
- TRIANGLE_GET_TEXTCOORD
|
|
|
- Uint32 *sptr = (Uint32 *)((Uint8 *) src_ptr + srcy * src_pitch);
|
|
|
- *(Uint32 *)dptr = sptr[srcx];
|
|
|
- }
|
|
|
- TRIANGLE_END_LOOP
|
|
|
- } else if (dstbpp == 3) {
|
|
|
- TRIANGLE_BEGIN_LOOP
|
|
|
- {
|
|
|
- TRIANGLE_GET_TEXTCOORD
|
|
|
- Uint8 *sptr = (Uint8 *)((Uint8 *) src_ptr + srcy * src_pitch);
|
|
|
- dptr[0] = sptr[3 * srcx];
|
|
|
- dptr[1] = sptr[3 * srcx + 1];
|
|
|
- dptr[2] = sptr[3 * srcx + 2];
|
|
|
- }
|
|
|
- TRIANGLE_END_LOOP
|
|
|
- } else if (dstbpp == 2) {
|
|
|
- TRIANGLE_BEGIN_LOOP
|
|
|
- {
|
|
|
- TRIANGLE_GET_TEXTCOORD
|
|
|
- Uint16 *sptr = (Uint16 *)((Uint8 *) src_ptr + srcy * src_pitch);
|
|
|
- *(Uint16 *)dptr = sptr[srcx];
|
|
|
- }
|
|
|
- TRIANGLE_END_LOOP
|
|
|
- } else if (dstbpp == 1) {
|
|
|
- TRIANGLE_BEGIN_LOOP
|
|
|
- {
|
|
|
- TRIANGLE_GET_TEXTCOORD
|
|
|
- Uint8 *sptr = (Uint8 *)((Uint8 *) src_ptr + srcy * src_pitch);
|
|
|
- *dptr = sptr[srcx];
|
|
|
- }
|
|
|
- TRIANGLE_END_LOOP
|
|
|
- }
|
|
|
-
|
|
|
-end:
|
|
|
- if (dst_locked) {
|
|
|
- SDL_UnlockSurface(dst);
|
|
|
- }
|
|
|
- if (src_locked) {
|
|
|
- SDL_UnlockSurface(src);
|
|
|
- }
|
|
|
-
|
|
|
- return ret;
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-#define FORMAT_ALPHA 0
|
|
|
-#define FORMAT_NO_ALPHA -1
|
|
|
-#define FORMAT_2101010 1
|
|
|
-#define FORMAT_HAS_ALPHA(format) format == 0
|
|
|
-#define FORMAT_HAS_NO_ALPHA(format) format < 0
|
|
|
-static int SDL_INLINE detect_format(SDL_PixelFormat *pf) {
|
|
|
- if (pf->format == SDL_PIXELFORMAT_ARGB2101010) {
|
|
|
- return FORMAT_2101010;
|
|
|
- } else if (pf->Amask) {
|
|
|
- return FORMAT_ALPHA;
|
|
|
- } else {
|
|
|
- return FORMAT_NO_ALPHA;
|
|
|
- }
|
|
|
-}
|
|
|
-
|
|
|
-static void
|
|
|
-SDL_BlitTriangle_Slow(SDL_BlitInfo *info,
|
|
|
- SDL_Point s2_x_area, SDL_Rect dstrect, int area, int bias_w0, int bias_w1, int bias_w2,
|
|
|
- int d2d1_y, int d1d2_x, int d0d2_y, int d2d0_x, int d1d0_y, int d0d1_x,
|
|
|
- int s2s0_x, int s2s1_x, int s2s0_y, int s2s1_y, int w0_row, int w1_row, int w2_row,
|
|
|
- SDL_Color c0, SDL_Color c1, SDL_Color c2, int is_uniform)
|
|
|
-{
|
|
|
- const int flags = info->flags;
|
|
|
- Uint32 modulateR = info->r;
|
|
|
- Uint32 modulateG = info->g;
|
|
|
- Uint32 modulateB = info->b;
|
|
|
- Uint32 modulateA = info->a;
|
|
|
- Uint32 srcpixel;
|
|
|
- Uint32 srcR, srcG, srcB, srcA;
|
|
|
- Uint32 dstpixel;
|
|
|
- Uint32 dstR, dstG, dstB, dstA;
|
|
|
- SDL_PixelFormat *src_fmt = info->src_fmt;
|
|
|
- SDL_PixelFormat *dst_fmt = info->dst_fmt;
|
|
|
- int srcbpp = src_fmt->BytesPerPixel;
|
|
|
- int dstbpp = dst_fmt->BytesPerPixel;
|
|
|
- int srcfmt_val;
|
|
|
- int dstfmt_val;
|
|
|
- Uint32 rgbmask = ~src_fmt->Amask;
|
|
|
- Uint32 ckey = info->colorkey & rgbmask;
|
|
|
-
|
|
|
- Uint8 *dst_ptr = info->dst;
|
|
|
- int dst_pitch = info->dst_pitch;;
|
|
|
-
|
|
|
- srcfmt_val = detect_format(src_fmt);
|
|
|
- dstfmt_val = detect_format(dst_fmt);
|
|
|
-
|
|
|
- TRIANGLE_BEGIN_LOOP
|
|
|
- {
|
|
|
- Uint8 *src;
|
|
|
- Uint8 *dst = dptr;
|
|
|
- TRIANGLE_GET_TEXTCOORD
|
|
|
- src = (info->src + (srcy * info->src_pitch) + (srcx * srcbpp));
|
|
|
- if (FORMAT_HAS_ALPHA(srcfmt_val)) {
|
|
|
- DISEMBLE_RGBA(src, srcbpp, src_fmt, srcpixel, srcR, srcG, srcB, srcA);
|
|
|
- } else if (FORMAT_HAS_NO_ALPHA(srcfmt_val)) {
|
|
|
- DISEMBLE_RGB(src, srcbpp, src_fmt, srcpixel, srcR, srcG, srcB);
|
|
|
- srcA = 0xFF;
|
|
|
- } else {
|
|
|
- /* SDL_PIXELFORMAT_ARGB2101010 */
|
|
|
- srcpixel = *((Uint32 *)(src));
|
|
|
- RGBA_FROM_ARGB2101010(srcpixel, srcR, srcG, srcB, srcA);
|
|
|
- }
|
|
|
- if (flags & SDL_COPY_COLORKEY) {
|
|
|
- /* srcpixel isn't set for 24 bpp */
|
|
|
- if (srcbpp == 3) {
|
|
|
- srcpixel = (srcR << src_fmt->Rshift) |
|
|
|
- (srcG << src_fmt->Gshift) | (srcB << src_fmt->Bshift);
|
|
|
- }
|
|
|
- if ((srcpixel & rgbmask) == ckey) {
|
|
|
- continue;
|
|
|
- }
|
|
|
- }
|
|
|
- if (FORMAT_HAS_ALPHA(dstfmt_val)) {
|
|
|
- DISEMBLE_RGBA(dst, dstbpp, dst_fmt, dstpixel, dstR, dstG, dstB, dstA);
|
|
|
- } else if (FORMAT_HAS_NO_ALPHA(dstfmt_val)) {
|
|
|
- DISEMBLE_RGB(dst, dstbpp, dst_fmt, dstpixel, dstR, dstG, dstB);
|
|
|
- dstA = 0xFF;
|
|
|
- } else {
|
|
|
- /* SDL_PIXELFORMAT_ARGB2101010 */
|
|
|
- dstpixel = *((Uint32 *)(dst));
|
|
|
- RGBA_FROM_ARGB2101010(dstpixel, dstR, dstG, dstB, dstA);
|
|
|
- }
|
|
|
-
|
|
|
- if (! is_uniform) {
|
|
|
- TRIANGLE_GET_COLOR
|
|
|
- modulateR = r;
|
|
|
- modulateG = g;
|
|
|
- modulateB = b;
|
|
|
- modulateA = a;
|
|
|
- }
|
|
|
-
|
|
|
- if (flags & SDL_COPY_MODULATE_COLOR) {
|
|
|
- srcR = (srcR * modulateR) / 255;
|
|
|
- srcG = (srcG * modulateG) / 255;
|
|
|
- srcB = (srcB * modulateB) / 255;
|
|
|
- }
|
|
|
- if (flags & SDL_COPY_MODULATE_ALPHA) {
|
|
|
- srcA = (srcA * modulateA) / 255;
|
|
|
- }
|
|
|
- if (flags & (SDL_COPY_BLEND | SDL_COPY_ADD)) {
|
|
|
- /* This goes away if we ever use premultiplied alpha */
|
|
|
- if (srcA < 255) {
|
|
|
- srcR = (srcR * srcA) / 255;
|
|
|
- srcG = (srcG * srcA) / 255;
|
|
|
- srcB = (srcB * srcA) / 255;
|
|
|
- }
|
|
|
- }
|
|
|
- switch (flags & (SDL_COPY_BLEND | SDL_COPY_ADD | SDL_COPY_MOD | SDL_COPY_MUL)) {
|
|
|
- case 0:
|
|
|
- dstR = srcR;
|
|
|
- dstG = srcG;
|
|
|
- dstB = srcB;
|
|
|
- dstA = srcA;
|
|
|
- break;
|
|
|
- case SDL_COPY_BLEND:
|
|
|
- dstR = srcR + ((255 - srcA) * dstR) / 255;
|
|
|
- dstG = srcG + ((255 - srcA) * dstG) / 255;
|
|
|
- dstB = srcB + ((255 - srcA) * dstB) / 255;
|
|
|
- dstA = srcA + ((255 - srcA) * dstA) / 255;
|
|
|
- break;
|
|
|
- case SDL_COPY_ADD:
|
|
|
- dstR = srcR + dstR;
|
|
|
- if (dstR > 255)
|
|
|
- dstR = 255;
|
|
|
- dstG = srcG + dstG;
|
|
|
- if (dstG > 255)
|
|
|
- dstG = 255;
|
|
|
- dstB = srcB + dstB;
|
|
|
- if (dstB > 255)
|
|
|
- dstB = 255;
|
|
|
- break;
|
|
|
- case SDL_COPY_MOD:
|
|
|
- dstR = (srcR * dstR) / 255;
|
|
|
- dstG = (srcG * dstG) / 255;
|
|
|
- dstB = (srcB * dstB) / 255;
|
|
|
- break;
|
|
|
- case SDL_COPY_MUL:
|
|
|
- dstR = ((srcR * dstR) + (dstR * (255 - srcA))) / 255;
|
|
|
- if (dstR > 255)
|
|
|
- dstR = 255;
|
|
|
- dstG = ((srcG * dstG) + (dstG * (255 - srcA))) / 255;
|
|
|
- if (dstG > 255)
|
|
|
- dstG = 255;
|
|
|
- dstB = ((srcB * dstB) + (dstB * (255 - srcA))) / 255;
|
|
|
- if (dstB > 255)
|
|
|
- dstB = 255;
|
|
|
- dstA = ((srcA * dstA) + (dstA * (255 - srcA))) / 255;
|
|
|
- if (dstA > 255)
|
|
|
- dstA = 255;
|
|
|
- break;
|
|
|
- }
|
|
|
- if (FORMAT_HAS_ALPHA(dstfmt_val)) {
|
|
|
- ASSEMBLE_RGBA(dst, dstbpp, dst_fmt, dstR, dstG, dstB, dstA);
|
|
|
- } else if (FORMAT_HAS_NO_ALPHA(dstfmt_val)) {
|
|
|
- ASSEMBLE_RGB(dst, dstbpp, dst_fmt, dstR, dstG, dstB);
|
|
|
- } else {
|
|
|
- /* SDL_PIXELFORMAT_ARGB2101010 */
|
|
|
- Uint32 pixel;
|
|
|
- ARGB2101010_FROM_RGBA(pixel, dstR, dstG, dstB, dstA);
|
|
|
- *(Uint32 *)dst = pixel;
|
|
|
- }
|
|
|
- }
|
|
|
- TRIANGLE_END_LOOP
|
|
|
-}
|
|
|
-
|
|
|
#endif /* SDL_VIDEO_RENDER_PS2 && !SDL_RENDER_DISABLED */
|
|
|
|
|
|
/* vi: set ts=4 sw=4 expandtab: */
|