diff options
| author | Brian Paul <brian.paul@tungstengraphics.com> | 2003-12-05 00:44:01 +0000 |
|---|---|---|
| committer | Brian Paul <brian.paul@tungstengraphics.com> | 2003-12-05 00:44:01 +0000 |
| commit | a6ad01c14e8b7d819783d81c1febfa8e72063bf3 (patch) | |
| tree | 375c1252106162279adb97aee86149b5ab21cc69 /src/mesa/swrast/s_copypix.c | |
| parent | 15f7f4e31f1a90d58a4e897299039c9fd39782f9 (diff) | |
Fix a front/back CopyPixels glitch.
Diffstat (limited to 'src/mesa/swrast/s_copypix.c')
| -rw-r--r-- | src/mesa/swrast/s_copypix.c | 36 |
1 files changed, 28 insertions, 8 deletions
diff --git a/src/mesa/swrast/s_copypix.c b/src/mesa/swrast/s_copypix.c index 15cedb4c1d..0692adfbff 100644 --- a/src/mesa/swrast/s_copypix.c +++ b/src/mesa/swrast/s_copypix.c @@ -310,8 +310,13 @@ copy_rgba_pixels(GLcontext *ctx, GLint srcx, GLint srcy, stepy = 1; } - overlapping = regions_overlap(srcx, srcy, destx, desty, width, height, - ctx->Pixel.ZoomX, ctx->Pixel.ZoomY); + if (ctx->DrawBuffer == ctx->ReadBuffer) { + overlapping = regions_overlap(srcx, srcy, destx, desty, width, height, + ctx->Pixel.ZoomX, ctx->Pixel.ZoomY); + } + else { + overlapping = GL_FALSE; + } if (ctx->Depth.Test) _swrast_span_default_z(ctx, &span); @@ -521,8 +526,13 @@ copy_ci_pixels( GLcontext *ctx, GLint srcx, GLint srcy, stepy = 1; } - overlapping = regions_overlap(srcx, srcy, destx, desty, width, height, - ctx->Pixel.ZoomX, ctx->Pixel.ZoomY); + if (ctx->DrawBuffer == ctx->ReadBuffer) { + overlapping = regions_overlap(srcx, srcy, destx, desty, width, height, + ctx->Pixel.ZoomX, ctx->Pixel.ZoomY); + } + else { + overlapping = GL_FALSE; + } if (ctx->Depth.Test) _swrast_span_default_z(ctx, &span); @@ -636,8 +646,13 @@ copy_depth_pixels( GLcontext *ctx, GLint srcx, GLint srcy, stepy = 1; } - overlapping = regions_overlap(srcx, srcy, destx, desty, width, height, - ctx->Pixel.ZoomX, ctx->Pixel.ZoomY); + if (ctx->DrawBuffer == ctx->ReadBuffer) { + overlapping = regions_overlap(srcx, srcy, destx, desty, width, height, + ctx->Pixel.ZoomX, ctx->Pixel.ZoomY); + } + else { + overlapping = GL_FALSE; + } _swrast_span_default_color(ctx, &span); if (ctx->Fog.Enabled) @@ -736,8 +751,13 @@ copy_stencil_pixels( GLcontext *ctx, GLint srcx, GLint srcy, stepy = 1; } - overlapping = regions_overlap(srcx, srcy, destx, desty, width, height, - ctx->Pixel.ZoomX, ctx->Pixel.ZoomY); + if (ctx->DrawBuffer == ctx->ReadBuffer) { + overlapping = regions_overlap(srcx, srcy, destx, desty, width, height, + ctx->Pixel.ZoomX, ctx->Pixel.ZoomY); + } + else { + overlapping = GL_FALSE; + } if (overlapping) { GLint ssy = sy; |