Forward scale mode to SW renderer (Bug 5313)
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diff --git a/src/render/SDL_sysrender.h b/src/render/SDL_sysrender.h
index 5bb9809..0269a93 100644
--- a/src/render/SDL_sysrender.h
+++ b/src/render/SDL_sysrender.h
@@ -258,6 +258,9 @@ extern SDL_BlendOperation SDL_GetBlendModeAlphaOperation(SDL_BlendMode blendMode
the next call, because it might be in an array that gets realloc()'d. */
extern void *SDL_AllocateRenderVertices(SDL_Renderer *renderer, const size_t numbytes, const size_t alignment, size_t *offset);
+extern int SDL_PrivateLowerBlitScaled(SDL_Surface * src, SDL_Rect * srcrect, SDL_Surface * dst, SDL_Rect * dstrect, SDL_ScaleMode scaleMode);
+extern int SDL_PrivateUpperBlitScaled(SDL_Surface * src, const SDL_Rect * srcrect, SDL_Surface * dst, SDL_Rect * dstrect, SDL_ScaleMode scaleMode);
+
#endif /* SDL_sysrender_h_ */
/* vi: set ts=4 sw=4 expandtab: */
diff --git a/src/render/software/SDL_render_sw.c b/src/render/software/SDL_render_sw.c
index 18dc180..0f7ac57 100644
--- a/src/render/software/SDL_render_sw.c
+++ b/src/render/software/SDL_render_sw.c
@@ -434,7 +434,7 @@ SW_RenderCopyEx(SDL_Renderer * renderer, SDL_Surface *surface, SDL_Texture * tex
retval = -1;
} else {
SDL_SetSurfaceBlendMode(src_clone, SDL_BLENDMODE_NONE);
- retval = SDL_BlitScaled(src_clone, srcrect, src_scaled, &scale_rect);
+ retval = SDL_PrivateUpperBlitScaled(src_clone, srcrect, src_scaled, &scale_rect, texture->scaleMode);
SDL_FreeSurface(src_clone);
src_clone = src_scaled;
src_scaled = NULL;
@@ -720,7 +720,7 @@ SW_RunCommandQueue(SDL_Renderer * renderer, SDL_RenderCommand *cmd, void *vertic
* to avoid potentially frequent RLE encoding/decoding.
*/
SDL_SetSurfaceRLE(surface, 0);
- SDL_BlitScaled(src, srcrect, surface, dstrect);
+ SDL_PrivateUpperBlitScaled(src, srcrect, surface, dstrect, texture->scaleMode);
}
break;
}
diff --git a/src/video/SDL_surface.c b/src/video/SDL_surface.c
index ade68bf..dbb66aa 100644
--- a/src/video/SDL_surface.c
+++ b/src/video/SDL_surface.c
@@ -26,6 +26,7 @@
#include "SDL_RLEaccel_c.h"
#include "SDL_pixels_c.h"
#include "SDL_yuv_c.h"
+#include "../render/SDL_sysrender.h"
/* Check to make sure we can safely check multiplication of surface w and pitch and it won't overflow size_t */
@@ -746,6 +747,14 @@ int
SDL_UpperBlitScaled(SDL_Surface * src, const SDL_Rect * srcrect,
SDL_Surface * dst, SDL_Rect * dstrect)
{
+ return SDL_PrivateUpperBlitScaled(src, srcrect, dst, dstrect, SDL_ScaleModeNearest);
+}
+
+
+int
+SDL_PrivateUpperBlitScaled(SDL_Surface * src, const SDL_Rect * srcrect,
+ SDL_Surface * dst, SDL_Rect * dstrect, SDL_ScaleMode scaleMode)
+{
double src_x0, src_y0, src_x1, src_y1;
double dst_x0, dst_y0, dst_x1, dst_y1;
SDL_Rect final_src, final_dst;
@@ -889,7 +898,7 @@ SDL_UpperBlitScaled(SDL_Surface * src, const SDL_Rect * srcrect,
return 0;
}
- return SDL_LowerBlitScaled(src, &final_src, dst, &final_dst);
+ return SDL_PrivateLowerBlitScaled(src, &final_src, dst, &final_dst, scaleMode);
}
/**
@@ -900,6 +909,13 @@ int
SDL_LowerBlitScaled(SDL_Surface * src, SDL_Rect * srcrect,
SDL_Surface * dst, SDL_Rect * dstrect)
{
+ return SDL_PrivateLowerBlitScaled(src, srcrect, dst, dstrect, SDL_ScaleModeNearest);
+}
+
+int
+SDL_PrivateLowerBlitScaled(SDL_Surface * src, SDL_Rect * srcrect,
+ SDL_Surface * dst, SDL_Rect * dstrect, SDL_ScaleMode scaleMode)
+{
static const Uint32 complex_copy_flags = (
SDL_COPY_MODULATE_COLOR | SDL_COPY_MODULATE_ALPHA |
SDL_COPY_BLEND | SDL_COPY_ADD | SDL_COPY_MOD | SDL_COPY_MUL |
@@ -914,7 +930,12 @@ SDL_LowerBlitScaled(SDL_Surface * src, SDL_Rect * srcrect,
if ( !(src->map->info.flags & complex_copy_flags) &&
src->format->format == dst->format->format &&
!SDL_ISPIXELFORMAT_INDEXED(src->format->format) ) {
- return SDL_SoftStretch( src, srcrect, dst, dstrect );
+
+ if (scaleMode != SDL_ScaleModeNearest && src->format->BytesPerPixel == 4 && src->format->format != SDL_PIXELFORMAT_ARGB2101010) {
+ return SDL_SoftStretchLinear(src, srcrect, dst, dstrect);
+ } else {
+ return SDL_SoftStretch( src, srcrect, dst, dstrect );
+ }
} else {
return SDL_LowerBlit( src, srcrect, dst, dstrect );
}