Mesa (main): llvmpipe: only report supported shader-image formats

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Module: Mesa
Branch: main
Commit: 2e29857bb6574b0f3505233b82adae1b3eeb8ff7
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=2e29857bb6574b0f3505233b82adae1b3eeb8ff7

Author: Erik Faye-Lund <erik.faye-lund at collabora.com>
Date:   Mon May 31 17:41:12 2021 +0200

llvmpipe: only report supported shader-image formats

LLVMpipe has a rather limited implementation of shader-images, so let's
limit what we report to the formats required by the spec, as all of
those seems to work fine.

Reviewed-By: Mike Blumenkrantz <michael.blumenkrantz at gmail.com>
Reviewed-by: Roland Scheidegger <sroland at vmware.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10467>

---

 src/gallium/drivers/llvmpipe/lp_screen.c | 48 ++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/src/gallium/drivers/llvmpipe/lp_screen.c b/src/gallium/drivers/llvmpipe/lp_screen.c
index 6146b121cea..74c0617a2c7 100644
--- a/src/gallium/drivers/llvmpipe/lp_screen.c
+++ b/src/gallium/drivers/llvmpipe/lp_screen.c
@@ -673,6 +673,54 @@ llvmpipe_is_format_supported( struct pipe_screen *_screen,
          return false;
    }
 
+   if (bind & PIPE_BIND_SHADER_IMAGE) {
+      switch (format) {
+         case PIPE_FORMAT_R32G32B32A32_FLOAT:
+         case PIPE_FORMAT_R16G16B16A16_FLOAT:
+         case PIPE_FORMAT_R32G32_FLOAT:
+         case PIPE_FORMAT_R16G16_FLOAT:
+         case PIPE_FORMAT_R11G11B10_FLOAT:
+         case PIPE_FORMAT_R32_FLOAT:
+         case PIPE_FORMAT_R16_FLOAT:
+         case PIPE_FORMAT_R32G32B32A32_UINT:
+         case PIPE_FORMAT_R16G16B16A16_UINT:
+         case PIPE_FORMAT_R10G10B10A2_UINT:
+         case PIPE_FORMAT_R8G8B8A8_UINT:
+         case PIPE_FORMAT_R32G32_UINT:
+         case PIPE_FORMAT_R16G16_UINT:
+         case PIPE_FORMAT_R8G8_UINT:
+         case PIPE_FORMAT_R32_UINT:
+         case PIPE_FORMAT_R16_UINT:
+         case PIPE_FORMAT_R8_UINT:
+         case PIPE_FORMAT_R32G32B32A32_SINT:
+         case PIPE_FORMAT_R16G16B16A16_SINT:
+         case PIPE_FORMAT_R8G8B8A8_SINT:
+         case PIPE_FORMAT_R32G32_SINT:
+         case PIPE_FORMAT_R16G16_SINT:
+         case PIPE_FORMAT_R8G8_SINT:
+         case PIPE_FORMAT_R32_SINT:
+         case PIPE_FORMAT_R16_SINT:
+         case PIPE_FORMAT_R8_SINT:
+         case PIPE_FORMAT_R16G16B16A16_UNORM:
+         case PIPE_FORMAT_R10G10B10A2_UNORM:
+         case PIPE_FORMAT_R8G8B8A8_UNORM:
+         case PIPE_FORMAT_R16G16_UNORM:
+         case PIPE_FORMAT_R8G8_UNORM:
+         case PIPE_FORMAT_R16_UNORM:
+         case PIPE_FORMAT_R8_UNORM:
+         case PIPE_FORMAT_R16G16B16A16_SNORM:
+         case PIPE_FORMAT_R8G8B8A8_SNORM:
+         case PIPE_FORMAT_R16G16_SNORM:
+         case PIPE_FORMAT_R8G8_SNORM:
+         case PIPE_FORMAT_R16_SNORM:
+         case PIPE_FORMAT_R8_SNORM:
+            break;
+
+         default:
+            return false;
+      }
+   }
+
    if ((bind & (PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW)) &&
        ((bind & PIPE_BIND_DISPLAY_TARGET) == 0)) {
       /* Disable all 3-channel formats, where channel size != 32 bits.