31 lines
1.2 KiB
Diff
31 lines
1.2 KiB
Diff
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From 4dd20f2678195524dd147db3fe902d0a93de3df0 Mon Sep 17 00:00:00 2001
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From: Neil Roberts <neil@linux.intel.com>
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Date: Thu, 24 Feb 2011 18:42:47 +0000
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Subject: cogl-blit: Disable blending when using texture render
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When using a pipeline and the journal to blit images between
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framebuffers, it should disable blending. Otherwise it will end up
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blending the source texture with uninitialised garbage in the
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destination texture.
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---
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diff --git a/clutter/cogl/cogl/cogl-blit.c b/clutter/cogl/cogl/cogl-blit.c
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index 1c40e34..255f77c 100644
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--- a/clutter/cogl/cogl/cogl-blit.c
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+++ b/clutter/cogl/cogl/cogl-blit.c
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@@ -78,6 +78,12 @@ _cogl_blit_texture_render_begin (CoglBlitData *data)
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cogl_pipeline_set_layer_filters (ctx->blit_texture_pipeline, 0,
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COGL_PIPELINE_FILTER_NEAREST,
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COGL_PIPELINE_FILTER_NEAREST);
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+
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+ /* Disable blending by just directly taking the contents of the
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+ source texture */
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+ cogl_pipeline_set_blend (ctx->blit_texture_pipeline,
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+ "RGBA = ADD(SRC_COLOR, 0)",
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+ NULL);
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}
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pipeline = ctx->blit_texture_pipeline;
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--
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cgit v0.8.3.1-30-gff3a
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