[Mesa-dev] [PATCH 06/10] gallium/util: add util_copy_index_buffer() helper

Rob Clark robdclark at gmail.com
Tue Jun 14 16:35:41 UTC 2016


On Tue, Jun 14, 2016 at 12:32 PM, Nicolai Hähnle <nhaehnle at gmail.com> wrote:
> On 14.06.2016 17:57, Rob Clark wrote:
>>
>> From: Rob Clark <robclark at freedesktop.org>
>>
>> Note there was previously a util_set_index_buffer() which was only used
>> by svga.  Replace this.
>>
>> (The util_copy_* naming is more consistent with other u_inlines/
>> u_framebuffer helpers)
>
>
> Looks like you're changing semantics in a few places: memcpy is replaced by
> util_copy_index_buffer, which does reference counting.

I'll double check, but I think the replaced memcpy's are only in
drivers which do not support the non-user_buffer case.  (Pretty sure
the memcpy approach would have been completely broken otherwise.)

BR,
-R

> Nicolai
>
>
>>
>> Signed-off-by: Rob Clark <robclark at freedesktop.org>
>> ---
>>   src/gallium/auxiliary/util/u_helpers.c          | 15 ---------------
>>   src/gallium/auxiliary/util/u_helpers.h          |  3 ---
>>   src/gallium/auxiliary/util/u_inlines.h          | 17 +++++++++++++++++
>>   src/gallium/drivers/freedreno/freedreno_state.c | 11 +----------
>>   src/gallium/drivers/i915/i915_state.c           |  6 +-----
>>   src/gallium/drivers/ilo/ilo_state.c             | 10 +---------
>>   src/gallium/drivers/llvmpipe/lp_state_vertex.c  |  6 +-----
>>   src/gallium/drivers/nouveau/nv30/nv30_state.c   | 11 +----------
>>   src/gallium/drivers/r300/r300_state.c           |  8 +-------
>>   src/gallium/drivers/r600/r600_state_common.c    |  5 +----
>>   src/gallium/drivers/radeonsi/si_state.c         |  6 +-----
>>   src/gallium/drivers/softpipe/sp_state_vertex.c  |  6 +-----
>>   src/gallium/drivers/svga/svga_pipe_vertex.c     |  2 +-
>>   src/gallium/drivers/swr/swr_state.cpp           |  7 +------
>>   src/gallium/drivers/vc4/vc4_state.c             | 11 +----------
>>   src/gallium/drivers/virgl/virgl_context.c       |  8 +-------
>>   16 files changed, 30 insertions(+), 102 deletions(-)
>>
>> diff --git a/src/gallium/auxiliary/util/u_helpers.c
>> b/src/gallium/auxiliary/util/u_helpers.c
>> index 09020b0..117a51b 100644
>> --- a/src/gallium/auxiliary/util/u_helpers.c
>> +++ b/src/gallium/auxiliary/util/u_helpers.c
>> @@ -94,18 +94,3 @@ void util_set_vertex_buffers_count(struct
>> pipe_vertex_buffer *dst,
>>
>>      *dst_count = util_last_bit(enabled_buffers);
>>   }
>> -
>> -
>> -void
>> -util_set_index_buffer(struct pipe_index_buffer *dst,
>> -                      const struct pipe_index_buffer *src)
>> -{
>> -   if (src) {
>> -      pipe_resource_reference(&dst->buffer, src->buffer);
>> -      memcpy(dst, src, sizeof(*dst));
>> -   }
>> -   else {
>> -      pipe_resource_reference(&dst->buffer, NULL);
>> -      memset(dst, 0, sizeof(*dst));
>> -   }
>> -}
>> diff --git a/src/gallium/auxiliary/util/u_helpers.h
>> b/src/gallium/auxiliary/util/u_helpers.h
>> index a9a53e4..9804163 100644
>> --- a/src/gallium/auxiliary/util/u_helpers.h
>> +++ b/src/gallium/auxiliary/util/u_helpers.h
>> @@ -44,9 +44,6 @@ void util_set_vertex_buffers_count(struct
>> pipe_vertex_buffer *dst,
>>                                      const struct pipe_vertex_buffer *src,
>>                                      unsigned start_slot, unsigned count);
>>
>> -void util_set_index_buffer(struct pipe_index_buffer *dst,
>> -                           const struct pipe_index_buffer *src);
>> -
>>   #ifdef __cplusplus
>>   }
>>   #endif
>> diff --git a/src/gallium/auxiliary/util/u_inlines.h
>> b/src/gallium/auxiliary/util/u_inlines.h
>> index 207e2aa..78125c8 100644
>> --- a/src/gallium/auxiliary/util/u_inlines.h
>> +++ b/src/gallium/auxiliary/util/u_inlines.h
>> @@ -623,6 +623,23 @@ util_copy_constant_buffer(struct pipe_constant_buffer
>> *dst,
>>   }
>>
>>   static inline void
>> +util_copy_index_buffer(struct pipe_index_buffer *dst,
>> +                       const struct pipe_index_buffer *src)
>> +{
>> +   if (src) {
>> +      dst->index_size = src->index_size;
>> +      dst->offset = src->offset;
>> +      pipe_resource_reference(&dst->buffer, src->buffer);
>> +      dst->user_buffer = src->user_buffer;
>> +   } else {
>> +      dst->index_size = 0;
>> +      dst->offset = 0;
>> +      pipe_resource_reference(&dst->buffer, NULL);
>> +      dst->user_buffer = NULL;
>> +   }
>> +}
>> +
>> +static inline void
>>   util_copy_image_view(struct pipe_image_view *dst,
>>                        const struct pipe_image_view *src)
>>   {
>> diff --git a/src/gallium/drivers/freedreno/freedreno_state.c
>> b/src/gallium/drivers/freedreno/freedreno_state.c
>> index 53ea39b..688975f 100644
>> --- a/src/gallium/drivers/freedreno/freedreno_state.c
>> +++ b/src/gallium/drivers/freedreno/freedreno_state.c
>> @@ -207,16 +207,7 @@ fd_set_index_buffer(struct pipe_context *pctx,
>>                 const struct pipe_index_buffer *ib)
>>   {
>>         struct fd_context *ctx = fd_context(pctx);
>> -
>> -       if (ib) {
>> -               pipe_resource_reference(&ctx->indexbuf.buffer,
>> ib->buffer);
>> -               ctx->indexbuf.index_size = ib->index_size;
>> -               ctx->indexbuf.offset = ib->offset;
>> -               ctx->indexbuf.user_buffer = ib->user_buffer;
>> -       } else {
>> -               pipe_resource_reference(&ctx->indexbuf.buffer, NULL);
>> -       }
>> -
>> +       util_copy_index_buffer(&ctx->indexbuf, ib);
>>         ctx->dirty |= FD_DIRTY_INDEXBUF;
>>   }
>>
>> diff --git a/src/gallium/drivers/i915/i915_state.c
>> b/src/gallium/drivers/i915/i915_state.c
>> index 2efa14e..dbd711f 100644
>> --- a/src/gallium/drivers/i915/i915_state.c
>> +++ b/src/gallium/drivers/i915/i915_state.c
>> @@ -1063,11 +1063,7 @@ static void i915_set_index_buffer(struct
>> pipe_context *pipe,
>>                                     const struct pipe_index_buffer *ib)
>>   {
>>      struct i915_context *i915 = i915_context(pipe);
>> -
>> -   if (ib)
>> -      memcpy(&i915->index_buffer, ib, sizeof(i915->index_buffer));
>> -   else
>> -      memset(&i915->index_buffer, 0, sizeof(i915->index_buffer));
>> +   util_copy_index_buffer(&i915->index_buffer, ib);
>>   }
>>
>>   static void
>> diff --git a/src/gallium/drivers/ilo/ilo_state.c
>> b/src/gallium/drivers/ilo/ilo_state.c
>> index 4f1002e..feb50ad 100644
>> --- a/src/gallium/drivers/ilo/ilo_state.c
>> +++ b/src/gallium/drivers/ilo/ilo_state.c
>> @@ -1910,15 +1910,7 @@ ilo_set_index_buffer(struct pipe_context *pipe,
>>                        const struct pipe_index_buffer *state)
>>   {
>>      struct ilo_state_vector *vec = &ilo_context(pipe)->state_vector;
>> -
>> -   if (state) {
>> -      pipe_resource_reference(&vec->ib.state.buffer, state->buffer);
>> -      vec->ib.state = *state;
>> -   } else {
>> -      pipe_resource_reference(&vec->ib.state.buffer, NULL);
>> -      memset(&vec->ib.state, 0, sizeof(vec->ib.state));
>> -   }
>> -
>> +   util_copy_index_buffer(&vec->ib.state, state);
>>      vec->dirty |= ILO_DIRTY_IB;
>>   }
>>
>> diff --git a/src/gallium/drivers/llvmpipe/lp_state_vertex.c
>> b/src/gallium/drivers/llvmpipe/lp_state_vertex.c
>> index 1e93fd8..2e9669c 100644
>> --- a/src/gallium/drivers/llvmpipe/lp_state_vertex.c
>> +++ b/src/gallium/drivers/llvmpipe/lp_state_vertex.c
>> @@ -98,11 +98,7 @@ llvmpipe_set_index_buffer(struct pipe_context *pipe,
>>                             const struct pipe_index_buffer *ib)
>>   {
>>      struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
>> -
>> -   if (ib)
>> -      memcpy(&llvmpipe->index_buffer, ib,
>> sizeof(llvmpipe->index_buffer));
>> -   else
>> -      memset(&llvmpipe->index_buffer, 0, sizeof(llvmpipe->index_buffer));
>> +   util_copy_index_buffer(&llvmpipe->index_buffer, ib);
>>   }
>>
>>   void
>> diff --git a/src/gallium/drivers/nouveau/nv30/nv30_state.c
>> b/src/gallium/drivers/nouveau/nv30/nv30_state.c
>> index 3655e0c..f22a809 100644
>> --- a/src/gallium/drivers/nouveau/nv30/nv30_state.c
>> +++ b/src/gallium/drivers/nouveau/nv30/nv30_state.c
>> @@ -441,16 +441,7 @@ nv30_set_index_buffer(struct pipe_context *pipe,
>>                         const struct pipe_index_buffer *ib)
>>   {
>>       struct nv30_context *nv30 = nv30_context(pipe);
>> -
>> -    if (ib) {
>> -       pipe_resource_reference(&nv30->idxbuf.buffer, ib->buffer);
>> -       nv30->idxbuf.index_size = ib->index_size;
>> -       nv30->idxbuf.offset = ib->offset;
>> -       nv30->idxbuf.user_buffer = ib->user_buffer;
>> -    } else {
>> -       pipe_resource_reference(&nv30->idxbuf.buffer, NULL);
>> -       nv30->idxbuf.user_buffer = NULL;
>> -    }
>> +    util_copy_index_buffer(&nv30->idxbuf, ib);
>>   }
>>
>>   void
>> diff --git a/src/gallium/drivers/r300/r300_state.c
>> b/src/gallium/drivers/r300/r300_state.c
>> index 01ccd46..b324d34 100644
>> --- a/src/gallium/drivers/r300/r300_state.c
>> +++ b/src/gallium/drivers/r300/r300_state.c
>> @@ -1786,13 +1786,7 @@ static void r300_set_index_buffer_hwtcl(struct
>> pipe_context* pipe,
>>                                           const struct pipe_index_buffer
>> *ib)
>>   {
>>       struct r300_context* r300 = r300_context(pipe);
>> -
>> -    if (ib) {
>> -        pipe_resource_reference(&r300->index_buffer.buffer, ib->buffer);
>> -        memcpy(&r300->index_buffer, ib, sizeof(*ib));
>> -    } else {
>> -        pipe_resource_reference(&r300->index_buffer.buffer, NULL);
>> -    }
>> +    util_copy_index_buffer(&r300->index_buffer, ib);
>>   }
>>
>>   static void r300_set_index_buffer_swtcl(struct pipe_context* pipe,
>> diff --git a/src/gallium/drivers/r600/r600_state_common.c
>> b/src/gallium/drivers/r600/r600_state_common.c
>> index 1ca583c..b9cfea5 100644
>> --- a/src/gallium/drivers/r600/r600_state_common.c
>> +++ b/src/gallium/drivers/r600/r600_state_common.c
>> @@ -520,13 +520,10 @@ static void r600_set_index_buffer(struct
>> pipe_context *ctx,
>>                            const struct pipe_index_buffer *ib)
>>   {
>>         struct r600_context *rctx = (struct r600_context *)ctx;
>> +       util_copy_index_buffer(&rctx->index_buffer, ib);
>>
>>         if (ib) {
>> -               pipe_resource_reference(&rctx->index_buffer.buffer,
>> ib->buffer);
>> -               memcpy(&rctx->index_buffer, ib, sizeof(*ib));
>>                 r600_context_add_resource_size(ctx, ib->buffer);
>> -       } else {
>> -               pipe_resource_reference(&rctx->index_buffer.buffer, NULL);
>>         }
>>   }
>>
>> diff --git a/src/gallium/drivers/radeonsi/si_state.c
>> b/src/gallium/drivers/radeonsi/si_state.c
>> index 6ef3fe5..20cbbad 100644
>> --- a/src/gallium/drivers/radeonsi/si_state.c
>> +++ b/src/gallium/drivers/radeonsi/si_state.c
>> @@ -3223,13 +3223,9 @@ static void si_set_index_buffer(struct pipe_context
>> *ctx,
>>                                 const struct pipe_index_buffer *ib)
>>   {
>>         struct si_context *sctx = (struct si_context *)ctx;
>> -
>> +       util_copy_index_buffer(&sctx->index_buffer, ib);
>>         if (ib) {
>> -               pipe_resource_reference(&sctx->index_buffer.buffer,
>> ib->buffer);
>> -               memcpy(&sctx->index_buffer, ib, sizeof(*ib));
>>                 r600_context_add_resource_size(ctx, ib->buffer);
>> -       } else {
>> -               pipe_resource_reference(&sctx->index_buffer.buffer, NULL);
>>         }
>>   }
>>
>> diff --git a/src/gallium/drivers/softpipe/sp_state_vertex.c
>> b/src/gallium/drivers/softpipe/sp_state_vertex.c
>> index 48c8d2c..afbedbe 100644
>> --- a/src/gallium/drivers/softpipe/sp_state_vertex.c
>> +++ b/src/gallium/drivers/softpipe/sp_state_vertex.c
>> @@ -102,11 +102,7 @@ softpipe_set_index_buffer(struct pipe_context *pipe,
>>                             const struct pipe_index_buffer *ib)
>>   {
>>      struct softpipe_context *softpipe = softpipe_context(pipe);
>> -
>> -   if (ib)
>> -      memcpy(&softpipe->index_buffer, ib,
>> sizeof(softpipe->index_buffer));
>> -   else
>> -      memset(&softpipe->index_buffer, 0, sizeof(softpipe->index_buffer));
>> +   util_copy_index_buffer(&softpipe->index_buffer, ib);
>>   }
>>
>>
>> diff --git a/src/gallium/drivers/svga/svga_pipe_vertex.c
>> b/src/gallium/drivers/svga/svga_pipe_vertex.c
>> index 99757e4..5e03f10 100644
>> --- a/src/gallium/drivers/svga/svga_pipe_vertex.c
>> +++ b/src/gallium/drivers/svga/svga_pipe_vertex.c
>> @@ -59,7 +59,7 @@ static void svga_set_index_buffer(struct pipe_context
>> *pipe,
>>   {
>>      struct svga_context *svga = svga_context(pipe);
>>
>> -   util_set_index_buffer(&svga->curr.ib, ib);
>> +   util_copy_index_buffer(&svga->curr.ib, ib);
>>   }
>>
>>
>> diff --git a/src/gallium/drivers/swr/swr_state.cpp
>> b/src/gallium/drivers/swr/swr_state.cpp
>> index c4b5f77..cd18c96 100644
>> --- a/src/gallium/drivers/swr/swr_state.cpp
>> +++ b/src/gallium/drivers/swr/swr_state.cpp
>> @@ -529,12 +529,7 @@ swr_set_index_buffer(struct pipe_context *pipe,
>>                        const struct pipe_index_buffer *ib)
>>   {
>>      struct swr_context *ctx = swr_context(pipe);
>> -
>> -   if (ib)
>> -      memcpy(&ctx->index_buffer, ib, sizeof(ctx->index_buffer));
>> -   else
>> -      memset(&ctx->index_buffer, 0, sizeof(ctx->index_buffer));
>> -
>> +   util_copy_index_buffer(&ctx->index_buffer, ib);
>>      ctx->dirty |= SWR_NEW_VERTEX;
>>   }
>>
>> diff --git a/src/gallium/drivers/vc4/vc4_state.c
>> b/src/gallium/drivers/vc4/vc4_state.c
>> index 7aa3931..694d8a0 100644
>> --- a/src/gallium/drivers/vc4/vc4_state.c
>> +++ b/src/gallium/drivers/vc4/vc4_state.c
>> @@ -306,16 +306,7 @@ vc4_set_index_buffer(struct pipe_context *pctx,
>>                        const struct pipe_index_buffer *ib)
>>   {
>>           struct vc4_context *vc4 = vc4_context(pctx);
>> -
>> -        if (ib) {
>> -                pipe_resource_reference(&vc4->indexbuf.buffer,
>> ib->buffer);
>> -                vc4->indexbuf.index_size = ib->index_size;
>> -                vc4->indexbuf.offset = ib->offset;
>> -                vc4->indexbuf.user_buffer = ib->user_buffer;
>> -        } else {
>> -                pipe_resource_reference(&vc4->indexbuf.buffer, NULL);
>> -        }
>> -
>> +        util_copy_index_buffer(&vc4->indexbuf, ib);
>>           vc4->dirty |= VC4_DIRTY_INDEXBUF;
>>   }
>>
>> diff --git a/src/gallium/drivers/virgl/virgl_context.c
>> b/src/gallium/drivers/virgl/virgl_context.c
>> index 27e85a8..865c144 100644
>> --- a/src/gallium/drivers/virgl/virgl_context.c
>> +++ b/src/gallium/drivers/virgl/virgl_context.c
>> @@ -407,13 +407,7 @@ static void virgl_set_index_buffer(struct
>> pipe_context *ctx,
>>                                     const struct pipe_index_buffer *ib)
>>   {
>>      struct virgl_context *vctx = virgl_context(ctx);
>> -
>> -   if (ib) {
>> -      pipe_resource_reference(&vctx->index_buffer.buffer, ib->buffer);
>> -      memcpy(&vctx->index_buffer, ib, sizeof(*ib));
>> -   } else {
>> -      pipe_resource_reference(&vctx->index_buffer.buffer, NULL);
>> -   }
>> +   util_copy_index_buffer(&vctx->index_buffer, ib);
>>   }
>>
>>   static void virgl_hw_set_index_buffer(struct pipe_context *ctx,
>>
>


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