I also can't see where this is being used in
https://github.com/iXit/Mesa-3D/commit/9671cfd9bdad5c310b34c57befcfd7c43034b925.patch
Jose
________________________________________
From: mesa-dev <mesa-dev-boun...@lists.freedesktop.org> on behalf of Roland
Scheidegger <srol...@vmware.com>
Sent: 18 October 2014 16:09
To: mesa-dev@lists.freedesktop.org
Subject: Re: [Mesa-dev] [PATCH 06/16] gallium: add blending to pipe blit
Hmm shouldn't there be a cap bit for this unless you fix all drivers to
actually honor it?
(Though I'm unsure if it makes all that much sense in general, pipe blit
is already quite a can-do-everything call.)
Roland
On 10/18/2014 01:54 PM, David Heidelberger wrote:
> From: Christoph Bumiller <e0425...@student.tuwien.ac.at>
>
> Signed-off-by: David Heidelberger <david.heidelber...@ixit.cz>
> ---
> src/gallium/include/pipe/p_state.h | 1 +
> src/mesa/state_tracker/st_cb_blit.c | 1 +
> src/mesa/state_tracker/st_cb_readpixels.c | 1 +
> src/mesa/state_tracker/st_cb_texture.c | 3 +++
> 4 files changed, 6 insertions(+)
>
> diff --git a/src/gallium/include/pipe/p_state.h
> b/src/gallium/include/pipe/p_state.h
> index 7b9996d..b7adb99 100644
> --- a/src/gallium/include/pipe/p_state.h
> +++ b/src/gallium/include/pipe/p_state.h
> @@ -619,6 +619,7 @@ struct pipe_blit_info
>
> boolean render_condition_enable; /**< whether the blit should honor the
> current render condition */
> + boolean alpha_blend; /* dst.rgb = src.rgb * src.a + dst.rgb * (1 - src.a)
> */
> };
>
>
> diff --git a/src/mesa/state_tracker/st_cb_blit.c
> b/src/mesa/state_tracker/st_cb_blit.c
> index 9c33f4e..93b5c4f 100644
> --- a/src/mesa/state_tracker/st_cb_blit.c
> +++ b/src/mesa/state_tracker/st_cb_blit.c
> @@ -188,6 +188,7 @@ st_BlitFramebuffer(struct gl_context *ctx,
>
> blit.filter = pFilter;
> blit.render_condition_enable = TRUE;
> + blit.alpha_blend = FALSE;
>
> if (mask & GL_COLOR_BUFFER_BIT) {
> struct gl_renderbuffer_attachment *srcAtt =
> diff --git a/src/mesa/state_tracker/st_cb_readpixels.c
> b/src/mesa/state_tracker/st_cb_readpixels.c
> index d95a608..c9ff6f7 100644
> --- a/src/mesa/state_tracker/st_cb_readpixels.c
> +++ b/src/mesa/state_tracker/st_cb_readpixels.c
> @@ -184,6 +184,7 @@ st_readpixels(struct gl_context *ctx, GLint x, GLint y,
> blit.mask = st_get_blit_mask(rb->_BaseFormat, format);
> blit.filter = PIPE_TEX_FILTER_NEAREST;
> blit.scissor_enable = FALSE;
> + blit.alpha_blend = FALSE;
>
> if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
> blit.src.box.y = rb->Height - blit.src.box.y;
> diff --git a/src/mesa/state_tracker/st_cb_texture.c
> b/src/mesa/state_tracker/st_cb_texture.c
> index a8dbb78..914aaf5 100644
> --- a/src/mesa/state_tracker/st_cb_texture.c
> +++ b/src/mesa/state_tracker/st_cb_texture.c
> @@ -842,6 +842,7 @@ st_TexSubImage(struct gl_context *ctx, GLuint dims,
> blit.mask = st_get_blit_mask(format, texImage->_BaseFormat);
> blit.filter = PIPE_TEX_FILTER_NEAREST;
> blit.scissor_enable = FALSE;
> + blit.alpha_blend = FALSE;
>
> st->pipe->blit(st->pipe, &blit);
>
> @@ -1089,6 +1090,7 @@ st_GetTexImage(struct gl_context * ctx,
> blit.mask = st_get_blit_mask(texImage->_BaseFormat, format);
> blit.filter = PIPE_TEX_FILTER_NEAREST;
> blit.scissor_enable = FALSE;
> + blit.alpha_blend = FALSE;
>
> /* blit/render/decompress */
> st->pipe->blit(st->pipe, &blit);
> @@ -1455,6 +1457,7 @@ st_CopyTexSubImage(struct gl_context *ctx, GLuint dims,
> blit.dst.box.depth = 1;
> blit.mask = st_get_blit_mask(rb->_BaseFormat, texImage->_BaseFormat);
> blit.filter = PIPE_TEX_FILTER_NEAREST;
> + blit.alpha_blend = FALSE;
> pipe->blit(pipe, &blit);
> return;
>
>
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