[Mesa-dev] [PATCH v3] mesa: GL_EXT_texture_norm16 extension plumbing
Ilia Mirkin
imirkin at alum.mit.edu
Sat Apr 21 13:52:40 UTC 2018
On Sat, Apr 21, 2018 at 3:25 AM, Tapani Pälli <tapani.palli at intel.com> wrote:
>
>
> On 20.04.2018 19:15, Ilia Mirkin wrote:
>>
>> On Fri, Apr 20, 2018 at 11:33 AM, Tapani Pälli <tapani.palli at intel.com>
>> wrote:
>>>
>>> Patch enables use of short and unsigned short data for texture uploads,
>>> rendering and reading of framebuffers within the restrictions specified
>>> in GL_EXT_texture_norm16 spec.
>>>
>>> Patch also enables those 16bit format layout qualifiers listed in
>>> GL_NV_image_formats that depend on EXT_texture_norm16.
>>>
>>> v2: expose extension with dummy_true
>>> fix layout qualifier map changes (Ilia Mirkin)
>>> v3: use _mesa_has_EXT_texture_norm16, other fixes
>>> and cleanup (Ilia Mirkin)
>>>
>>> Signed-off-by: Tapani Pälli <tapani.palli at intel.com>
>>> ---
>>>
>>> Note, Piglit test "ext_texture_norm16-render" passes with these changes.
>>>
>>> src/compiler/glsl/glsl_parser.yy | 12 ++++----
>>> src/mesa/main/extensions_table.h | 1 +
>>> src/mesa/main/genmipmap.c | 2 +-
>>> src/mesa/main/glformats.c | 61
>>> +++++++++++++++++++++++++++++++++++++++-
>>> src/mesa/main/glformats.h | 3 +-
>>> src/mesa/main/readpix.c | 14 +++++++--
>>> src/mesa/main/shaderimage.c | 7 ++---
>>> 7 files changed, 85 insertions(+), 15 deletions(-)
>>>
>>> diff --git a/src/compiler/glsl/glsl_parser.yy
>>> b/src/compiler/glsl/glsl_parser.yy
>>> index e5ea41d4df..b4951a258a 100644
>>> --- a/src/compiler/glsl/glsl_parser.yy
>>> +++ b/src/compiler/glsl/glsl_parser.yy
>>> @@ -1340,18 +1340,18 @@ layout_qualifier_id:
>>> { "r32i", GL_R32I, GLSL_TYPE_INT, 130, 310, false },
>>> { "r16i", GL_R16I, GLSL_TYPE_INT, 130, 0, true },
>>> { "r8i", GL_R8I, GLSL_TYPE_INT, 130, 0, true },
>>> - { "rgba16", GL_RGBA16, GLSL_TYPE_FLOAT, 130, 0, false },
>>> + { "rgba16", GL_RGBA16, GLSL_TYPE_FLOAT, 130, 0, true },
>>> { "rgb10_a2", GL_RGB10_A2, GLSL_TYPE_FLOAT, 130, 0, true
>>> },
>>> { "rgba8", GL_RGBA8, GLSL_TYPE_FLOAT, 130, 310, false },
>>> - { "rg16", GL_RG16, GLSL_TYPE_FLOAT, 130, 0, false },
>>> + { "rg16", GL_RG16, GLSL_TYPE_FLOAT, 130, 0, true },
>>> { "rg8", GL_RG8, GLSL_TYPE_FLOAT, 130, 0, true },
>>> - { "r16", GL_R16, GLSL_TYPE_FLOAT, 130, 0, false },
>>> + { "r16", GL_R16, GLSL_TYPE_FLOAT, 130, 0, true },
>>> { "r8", GL_R8, GLSL_TYPE_FLOAT, 130, 0, true },
>>> - { "rgba16_snorm", GL_RGBA16_SNORM, GLSL_TYPE_FLOAT, 130,
>>> 0, false },
>>> + { "rgba16_snorm", GL_RGBA16_SNORM, GLSL_TYPE_FLOAT, 130,
>>> 0, true },
>>> { "rgba8_snorm", GL_RGBA8_SNORM, GLSL_TYPE_FLOAT, 130,
>>> 310, false },
>>> - { "rg16_snorm", GL_RG16_SNORM, GLSL_TYPE_FLOAT, 130, 0,
>>> false },
>>> + { "rg16_snorm", GL_RG16_SNORM, GLSL_TYPE_FLOAT, 130, 0,
>>> true },
>>> { "rg8_snorm", GL_RG8_SNORM, GLSL_TYPE_FLOAT, 130, 0,
>>> true },
>>> - { "r16_snorm", GL_R16_SNORM, GLSL_TYPE_FLOAT, 130, 0,
>>> false },
>>> + { "r16_snorm", GL_R16_SNORM, GLSL_TYPE_FLOAT, 130, 0,
>>> true },
>>> { "r8_snorm", GL_R8_SNORM, GLSL_TYPE_FLOAT, 130, 0, true
>>> }
>>> };
>>>
>>> diff --git a/src/mesa/main/extensions_table.h
>>> b/src/mesa/main/extensions_table.h
>>> index 492f7c3d20..aec17750d5 100644
>>> --- a/src/mesa/main/extensions_table.h
>>> +++ b/src/mesa/main/extensions_table.h
>>> @@ -283,6 +283,7 @@ EXT(EXT_texture_format_BGRA8888 ,
>>> dummy_true
>>> EXT(EXT_texture_integer , EXT_texture_integer
>>> , GLL, GLC, x , x , 2006)
>>> EXT(EXT_texture_lod_bias , dummy_true
>>> , GLL, x , ES1, x , 1999)
>>> EXT(EXT_texture_mirror_clamp , EXT_texture_mirror_clamp
>>> , GLL, GLC, x , x , 2004)
>>> +EXT(EXT_texture_norm16 , dummy_true
>>> , x , x , x , 31, 2014)
>>> EXT(EXT_texture_object , dummy_true
>>> , GLL, x , x , x , 1995)
>>> EXT(EXT_texture_rectangle , NV_texture_rectangle
>>> , GLL, x , x , x , 2004)
>>> EXT(EXT_texture_rg , ARB_texture_rg
>>> , x , x , x , ES2, 2011)
>>> diff --git a/src/mesa/main/genmipmap.c b/src/mesa/main/genmipmap.c
>>> index 488c32f810..fd20ea2806 100644
>>> --- a/src/mesa/main/genmipmap.c
>>> +++ b/src/mesa/main/genmipmap.c
>>> @@ -93,7 +93,7 @@
>>> _mesa_is_valid_generate_texture_mipmap_internalformat(struct gl_context
>>> *ctx,
>>> internalformat == GL_LUMINANCE_ALPHA ||
>>> internalformat == GL_LUMINANCE || internalformat ==
>>> GL_ALPHA ||
>>> internalformat == GL_BGRA_EXT ||
>>> - (_mesa_is_es3_color_renderable(internalformat) &&
>>> + (_mesa_is_es3_color_renderable(ctx, internalformat) &&
>>> _mesa_is_es3_texture_filterable(ctx, internalformat));
>>> }
>>>
>>> diff --git a/src/mesa/main/glformats.c b/src/mesa/main/glformats.c
>>> index 1e797c24c2..5473ec02df 100644
>>> --- a/src/mesa/main/glformats.c
>>> +++ b/src/mesa/main/glformats.c
>>> @@ -2857,6 +2857,17 @@ _mesa_es3_error_check_format_and_type(const struct
>>> gl_context *ctx,
>>> return GL_INVALID_OPERATION;
>>> break;
>>>
>>> + case GL_UNSIGNED_SHORT:
>>> + if (!_mesa_has_EXT_texture_norm16(ctx) || internalFormat !=
>>> GL_RGBA16)
>>> + return GL_INVALID_OPERATION;
>>> + break;
>>> +
>>> + case GL_SHORT:
>>> + if (!_mesa_has_EXT_texture_norm16(ctx) ||
>>> + internalFormat != GL_RGBA16_SNORM)
>>> + return GL_INVALID_OPERATION;
>>> + break;
>>> +
>>> case GL_UNSIGNED_SHORT_4_4_4_4:
>>> switch (internalFormat) {
>>> case GL_RGBA:
>>> @@ -2984,6 +2995,17 @@ _mesa_es3_error_check_format_and_type(const struct
>>> gl_context *ctx,
>>> return GL_INVALID_OPERATION;
>>> break;
>>>
>>> + case GL_UNSIGNED_SHORT:
>>> + if (!_mesa_has_EXT_texture_norm16(ctx) || internalFormat !=
>>> GL_RGB16)
>>> + return GL_INVALID_OPERATION;
>>> + break;
>>> +
>>> + case GL_SHORT:
>>> + if (!_mesa_has_EXT_texture_norm16(ctx) ||
>>> + internalFormat != GL_RGB16_SNORM)
>>> + return GL_INVALID_OPERATION;
>>> + break;
>>> +
>>> case GL_UNSIGNED_SHORT_5_6_5:
>>> switch (internalFormat) {
>>> case GL_RGB:
>>> @@ -3115,6 +3137,17 @@ _mesa_es3_error_check_format_and_type(const struct
>>> gl_context *ctx,
>>> return GL_INVALID_OPERATION;
>>> break;
>>>
>>> + case GL_UNSIGNED_SHORT:
>>> + if (!_mesa_has_EXT_texture_norm16(ctx) || internalFormat !=
>>> GL_RG16)
>>> + return GL_INVALID_OPERATION;
>>> + break;
>>> +
>>> + case GL_SHORT:
>>> + if (!_mesa_has_EXT_texture_norm16(ctx) ||
>>> + internalFormat != GL_RG16_SNORM)
>>> + return GL_INVALID_OPERATION;
>>> + break;
>>> +
>>> case GL_HALF_FLOAT:
>>> case GL_HALF_FLOAT_OES:
>>> switch (internalFormat) {
>>> @@ -3205,6 +3238,16 @@ _mesa_es3_error_check_format_and_type(const struct
>>> gl_context *ctx,
>>> return GL_INVALID_OPERATION;
>>> break;
>>>
>>> + case GL_UNSIGNED_SHORT:
>>> + if (ctx->Version < 31 || internalFormat != GL_R16)
>>
>>
>> !_mesa_has_EXT_texture_norm16(ctx) (and below)
>
>
> will fix
>
>
>>> + return GL_INVALID_OPERATION;
>>> + break;
>>> +
>>> + case GL_SHORT:
>>> + if (ctx->Version < 31 || internalFormat != GL_R16_SNORM)
>>> + return GL_INVALID_OPERATION;
>>> + break;
>>> +
>>> case GL_HALF_FLOAT:
>>> case GL_HALF_FLOAT_OES:
>>> switch (internalFormat) {
>>> @@ -3704,7 +3747,8 @@ _mesa_tex_format_from_format_and_type(const struct
>>> gl_context *ctx,
>>> * is marked "Color Renderable" in Table 8.10 of the ES 3.2
>>> specification.
>>> */
>>> bool
>>> -_mesa_is_es3_color_renderable(GLenum internal_format)
>>> +_mesa_is_es3_color_renderable(const struct gl_context *ctx,
>>> + GLenum internal_format)
>>> {
>>> switch (internal_format) {
>>> case GL_R8:
>>> @@ -3743,6 +3787,11 @@ _mesa_is_es3_color_renderable(GLenum
>>> internal_format)
>>> case GL_RGBA32I:
>>> case GL_RGBA32UI:
>>> return true;
>>> + case GL_R16:
>>> + case GL_RG16:
>>> + case GL_RGBA16:
>>> + if (_mesa_has_EXT_texture_norm16(ctx))
>>> + return true;
>>> default:
>>> return false;
>>> }
>>> @@ -3778,6 +3827,16 @@ _mesa_is_es3_texture_filterable(const struct
>>> gl_context *ctx,
>>> case GL_R11F_G11F_B10F:
>>> case GL_RGB9_E5:
>>> return true;
>>> + case GL_R16:
>>> + case GL_R16_SNORM:
>>> + case GL_RG16:
>>> + case GL_RG16_SNORM:
>>> + case GL_RGB16:
>>> + case GL_RGB16_SNORM:
>>> + case GL_RGBA16:
>>> + case GL_RGBA16_SNORM:
>>> + if (_mesa_has_EXT_texture_norm16(ctx))
>>> + return true;
>>
>>
>> Here and above, you fall through if it's false. Is that desirable?
>
>
> yes, then we will return false like should happen without the extension
If you fall through here, it will go into the GL_R32F/etc case. Seems
odd to do that... I think you just want
return _mesa_has_EXT_texture_norm16(ctx)
>
>
>>> case GL_R32F:
>>> case GL_RG32F:
>>> case GL_RGB32F:
>>> diff --git a/src/mesa/main/glformats.h b/src/mesa/main/glformats.h
>>> index 844f1e270c..5a21317159 100644
>>> --- a/src/mesa/main/glformats.h
>>> +++ b/src/mesa/main/glformats.h
>>> @@ -155,7 +155,8 @@ _mesa_tex_format_from_format_and_type(const struct
>>> gl_context *ctx,
>>> GLenum gl_format, GLenum type);
>>>
>>> extern bool
>>> -_mesa_is_es3_color_renderable(GLenum internal_format);
>>> +_mesa_is_es3_color_renderable(const struct gl_context *ctx,
>>> + GLenum internal_format);
>>>
>>> extern bool
>>> _mesa_is_es3_texture_filterable(const struct gl_context *ctx,
>>> diff --git a/src/mesa/main/readpix.c b/src/mesa/main/readpix.c
>>> index 6ce340ddf9..ff0647327e 100644
>>> --- a/src/mesa/main/readpix.c
>>> +++ b/src/mesa/main/readpix.c
>>> @@ -901,7 +901,7 @@ _mesa_readpixels(struct gl_context *ctx,
>>>
>>>
>>> static GLenum
>>> -read_pixels_es3_error_check(GLenum format, GLenum type,
>>> +read_pixels_es3_error_check(struct gl_context *ctx, GLenum format,
>>> GLenum type,
>>> const struct gl_renderbuffer *rb)
>>> {
>>> const GLenum internalFormat = rb->InternalFormat;
>>> @@ -927,6 +927,16 @@ read_pixels_es3_error_check(GLenum format, GLenum
>>> type,
>>> return GL_NO_ERROR;
>>> if (internalFormat == GL_RGB10_A2UI && type == GL_UNSIGNED_BYTE)
>>> return GL_NO_ERROR;
>>> + if (type == GL_UNSIGNED_SHORT) {
>>> + switch (internalFormat) {
>>> + case GL_R16:
>>> + case GL_RG16:
>>> + case GL_RGB16:
>>> + case GL_RGBA16:
>>> + if (_mesa_has_EXT_texture_norm16(ctx))
>>
>>
>> This should be indented in. (i.e. the if should be indented, the case
>> should remain as-is.)
>
>
> will fix
>
>> With these minor fixes, this is
>>
>> Acked-by: Ilia Mirkin <imirkin at alum.mit.edu>
>>
>> (I haven't done a thorough review of what all this should affect, but
>> the changes that you do have seem fine.)
>
>
> Thanks, it is about glTeximage2D, glGenerateMipmap, glReadPixels, rendering
> to fbo with these formats and GL_EXT_copy_image. Those are tested by the
> Piglit test I've sent. Parser changes get tested by NV_image_formats tests
> in Piglit.
>
>
>
>>> + return GL_NO_ERROR;
>>> + }
>>> + }
>>> break;
>>> case GL_BGRA:
>>> /* GL_EXT_read_format_bgra */
>>> @@ -1049,7 +1059,7 @@ read_pixels(GLint x, GLint y, GLsizei width,
>>> GLsizei height, GLenum format,
>>> }
>>> }
>>> } else {
>>> - err = read_pixels_es3_error_check(format, type, rb);
>>> + err = read_pixels_es3_error_check(ctx, format, type, rb);
>>> }
>>>
>>> if (err != GL_NO_ERROR) {
>>> diff --git a/src/mesa/main/shaderimage.c b/src/mesa/main/shaderimage.c
>>> index 596eadd4f8..ac4985d8b7 100644
>>> --- a/src/mesa/main/shaderimage.c
>>> +++ b/src/mesa/main/shaderimage.c
>>> @@ -430,9 +430,8 @@ _mesa_is_shader_image_format_supported(const struct
>>> gl_context *ctx,
>>> * ARB_shader_image_load_store extension, c.f. table 3.21 of the
>>> OpenGL 4.2
>>> * specification.
>>> *
>>> - * These can be supported by GLES 3.1 with GL_NV_image_formats &
>>> - * GL_EXT_texture_norm16 extensions but we don't have support for the
>>> - * latter in Mesa yet.
>>> + * Following formats are supported by GLES 3.1 with
>>> GL_NV_image_formats &
>>> + * GL_EXT_texture_norm16 extensions.
>>> */
>>> case GL_RGBA16:
>>> case GL_RGBA16_SNORM:
>>> @@ -440,7 +439,7 @@ _mesa_is_shader_image_format_supported(const struct
>>> gl_context *ctx,
>>> case GL_RG16_SNORM:
>>> case GL_R16:
>>> case GL_R16_SNORM:
>>> - return _mesa_is_desktop_gl(ctx);
>>> + return (_mesa_is_desktop_gl(ctx) ||
>>> _mesa_has_EXT_texture_norm16(ctx));
>>>
>>> default:
>>> return false;
>>> --
>>> 2.13.6
>>>
>
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