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mesa/st: Use global function _mesa_regions_overlap()

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Signed-off-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
This commit is contained in:
Anuj Phogat
2015-06-05 19:23:46 -07:00
parent 7f282d05a1
commit 2a397c7958
1 changed files with 3 additions and 27 deletions
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28
src/mesa/state_tracker/st_cb_drawpixels.c
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@@ -33,6 +33,7 @@
#include "main/imports.h" #include "main/imports.h"
#include "main/image.h" #include "main/image.h"
#include "main/bufferobj.h" #include "main/bufferobj.h"
#include "main/blit.h"
#include "main/format_pack.h" #include "main/format_pack.h"
#include "main/macros.h" #include "main/macros.h"
#include "main/mtypes.h" #include "main/mtypes.h"
@@ -1312,31 +1313,6 @@ st_get_color_read_renderbuffer(struct gl_context *ctx)
} }
/**
* \return TRUE if two regions overlap, FALSE otherwise
*/
static boolean
regions_overlap(int srcX0, int srcY0,
int srcX1, int srcY1,
int dstX0, int dstY0,
int dstX1, int dstY1)
{
if (MAX2(srcX0, srcX1) < MIN2(dstX0, dstX1))
return FALSE; /* src completely left of dst */
if (MAX2(dstX0, dstX1) < MIN2(srcX0, srcX1))
return FALSE; /* dst completely left of src */
if (MAX2(srcY0, srcY1) < MIN2(dstY0, dstY1))
return FALSE; /* src completely above dst */
if (MAX2(dstY0, dstY1) < MIN2(srcY0, srcY1))
return FALSE; /* dst completely above src */
return TRUE; /* some overlap */
}
/** /**
* Try to do a glCopyPixels for simple cases with a blit by calling * Try to do a glCopyPixels for simple cases with a blit by calling
* pipe->blit(). * pipe->blit().
@@ -1420,7 +1396,7 @@ blit_copy_pixels(struct gl_context *ctx, GLint srcx, GLint srcy,
} }
if (rbRead != rbDraw || if (rbRead != rbDraw ||
!regions_overlap(readX, readY, readX + readW, readY + readH, !_mesa_regions_overlap(readX, readY, readX + readW, readY + readH,
drawX, drawY, drawX + drawW, drawY + drawH)) { drawX, drawY, drawX + drawW, drawY + drawH)) {
struct pipe_blit_info blit; struct pipe_blit_info blit;