diff options
Diffstat (limited to 'src/gallium/drivers/r600/evergreen_state.c')
| -rw-r--r-- | src/gallium/drivers/r600/evergreen_state.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/src/gallium/drivers/r600/evergreen_state.c b/src/gallium/drivers/r600/evergreen_state.c index d0402c219fb..7040b7aa8cb 100644 --- a/src/gallium/drivers/r600/evergreen_state.c +++ b/src/gallium/drivers/r600/evergreen_state.c @@ -969,6 +969,58 @@ static void *evergreen_create_sampler_state(struct pipe_context *ctx, return ss; } +static struct pipe_sampler_view * +texture_buffer_sampler_view(struct r600_pipe_sampler_view *view, + unsigned width0, unsigned height0) + +{ + struct pipe_context *ctx = view->base.context; + struct r600_texture *tmp = (struct r600_texture*)view->base.texture; + uint64_t va; + int stride = util_format_get_blocksize(view->base.format); + unsigned format, num_format, format_comp, endian; + unsigned swizzle_res; + unsigned char swizzle[4]; + const struct util_format_description *desc; + + swizzle[0] = view->base.swizzle_r; + swizzle[1] = view->base.swizzle_g; + swizzle[2] = view->base.swizzle_b; + swizzle[3] = view->base.swizzle_a; + + r600_vertex_data_type(view->base.format, + &format, &num_format, &format_comp, + &endian); + + desc = util_format_description(view->base.format); + + swizzle_res = r600_get_swizzle_combined(desc->swizzle, swizzle, TRUE); + + va = r600_resource_va(ctx->screen, view->base.texture); + view->tex_resource = &tmp->resource; + + view->skip_mip_address_reloc = true; + view->tex_resource_words[0] = va; + view->tex_resource_words[1] = width0 - 1; + view->tex_resource_words[2] = S_030008_BASE_ADDRESS_HI(va >> 32UL) | + S_030008_STRIDE(stride) | + S_030008_DATA_FORMAT(format) | + S_030008_NUM_FORMAT_ALL(num_format) | + S_030008_FORMAT_COMP_ALL(format_comp) | + S_030008_SRF_MODE_ALL(1) | + S_030008_ENDIAN_SWAP(endian); + view->tex_resource_words[3] = swizzle_res; + /* + * in theory dword 4 is for number of elements, for use with resinfo, + * but it seems to utterly fail to work, the amd gpu shader analyser + * uses a const buffer to store the element sizes for buffer txq + */ + view->tex_resource_words[4] = 0; + view->tex_resource_words[5] = view->tex_resource_words[6] = 0; + view->tex_resource_words[7] = S_03001C_TYPE(V_03001C_SQ_TEX_VTX_VALID_BUFFER); + return &view->base; +} + struct pipe_sampler_view * evergreen_create_sampler_view_custom(struct pipe_context *ctx, struct pipe_resource *texture, @@ -997,6 +1049,9 @@ evergreen_create_sampler_view_custom(struct pipe_context *ctx, view->base.reference.count = 1; view->base.context = ctx; + if (texture->target == PIPE_BUFFER) + return texture_buffer_sampler_view(view, width0, height0); + swizzle[0] = state->swizzle_r; swizzle[1] = state->swizzle_g; swizzle[2] = state->swizzle_b; |