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st/mesa: allow R8 to not be exposed as renderable by driver

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A3xx GPUs support RG8 and RGBA8, but not R8 for rendering. Add RG8 as
fallbacks for integer formats, and require a renderable format to be
picked for all R8 variants.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5748>
This commit is contained in:
Ilia Mirkin 2020-05-18 14:00:58 -04:00
parent 9e2afe4f05
commit ef11d5fc8b
1 changed files with 7 additions and 3 deletions
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10
src/mesa/state_tracker/st_format.c
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@ -910,7 +910,7 @@ static const struct format_mapping format_map[] = {
},
{
{ GL_R8I, GL_RED_INTEGER_EXT, 0},
{ PIPE_FORMAT_R8_SINT, 0},
{ PIPE_FORMAT_R8_SINT, PIPE_FORMAT_R8G8_SINT, 0},
},
{
{ GL_R16I, 0},
@ -922,7 +922,7 @@ static const struct format_mapping format_map[] = {
},
{
{ GL_R8UI, 0},
{ PIPE_FORMAT_R8_UINT, 0},
{ PIPE_FORMAT_R8_UINT, PIPE_FORMAT_R8G8_UINT, 0},
},
{
{ GL_R16UI, 0},
@ -1281,7 +1281,11 @@ st_ChooseTextureFormat(struct gl_context *ctx, GLenum target,
internalFormat == GL_RGB16F ||
internalFormat == GL_RGBA16F ||
internalFormat == GL_RGB32F ||
internalFormat == GL_RGBA32F)
internalFormat == GL_RGBA32F ||
internalFormat == GL_RED ||
internalFormat == GL_RED_SNORM ||
internalFormat == GL_R8I ||
internalFormat == GL_R8UI)
bindings |= PIPE_BIND_RENDER_TARGET;
/* GLES allows the driver to choose any format which matches