[Mesa-dev] [PATCH v3] mesa: enable EXT_render_snorm extension

Tapani Pälli tapani.palli at intel.com
Thu Aug 9 10:05:56 UTC 2018



On 08/09/2018 12:59 AM, Nanley Chery wrote:
> On Thu, Aug 02, 2018 at 02:14:31PM +0300, Tapani Pälli wrote:
>> Patch sets additional formats renderable and enables the extension
>> when OpenGL ES 3.1 is supported.
>>
>> v2: instead of dummy_true, have a separate toggle for extension
>>      (Eric Anholt)
>>
>> v3: add missing checks, simplify some existing checks and fix
>>      glCopyTexImage2D check (Nanley Chery)
>>
>>      add SHORT and BYTE support in read_pixels_es3_error_check
>>
>> Signed-off-by: Tapani Pälli <tapani.palli at intel.com>
>> ---
>>   src/mesa/main/extensions_table.h |  1 +
>>   src/mesa/main/fbobject.c         | 31 +++++++++++++++++++++++--------
>>   src/mesa/main/glformats.c        |  9 +++++++++
>>   src/mesa/main/mtypes.h           |  1 +
>>   src/mesa/main/readpix.c          | 19 +++++++++++++++++++
>>   src/mesa/main/teximage.c         |  3 ++-
>>   6 files changed, 55 insertions(+), 9 deletions(-)
>>
>> diff --git a/src/mesa/main/extensions_table.h b/src/mesa/main/extensions_table.h
>> index 3f01896cae..c3a69b8987 100644
>> --- a/src/mesa/main/extensions_table.h
>> +++ b/src/mesa/main/extensions_table.h
>> @@ -246,6 +246,7 @@ EXT(EXT_polygon_offset_clamp                , ARB_polygon_offset_clamp
>>   EXT(EXT_primitive_bounding_box              , OES_primitive_bounding_box             ,  x ,  x ,  x ,  31, 2014)
>>   EXT(EXT_provoking_vertex                    , EXT_provoking_vertex                   , GLL, GLC,  x ,  x , 2009)
>>   EXT(EXT_read_format_bgra                    , dummy_true                             ,  x ,  x , ES1, ES2, 2009)
>> +EXT(EXT_render_snorm                        , EXT_render_snorm                       ,  x ,  x ,  x,   31, 2014)
>>   EXT(EXT_rescale_normal                      , dummy_true                             , GLL,  x ,  x ,  x , 1997)
>>   EXT(EXT_robustness                          , KHR_robustness                         ,  x,   x,   x , ES2, 2011)
>>   EXT(EXT_secondary_color                     , dummy_true                             , GLL,  x ,  x ,  x , 1999)
>> diff --git a/src/mesa/main/fbobject.c b/src/mesa/main/fbobject.c
>> index cfe2174ef1..2534b1df29 100644
>> --- a/src/mesa/main/fbobject.c
>> +++ b/src/mesa/main/fbobject.c
>> @@ -728,7 +728,15 @@ is_format_color_renderable(const struct gl_context *ctx, mesa_format format,
>>   
>>      /* Reject additional cases for GLES */
>>      switch (internalFormat) {
>> +   case GL_R8_SNORM:
>> +   case GL_RG8_SNORM:
>>      case GL_RGBA8_SNORM:
>> +      return _mesa_has_EXT_render_snorm(ctx);
>> +   case GL_R16_SNORM:
>> +   case GL_RG16_SNORM:
>> +   case GL_RGBA16_SNORM:
>> +      return _mesa_has_EXT_texture_norm16(ctx) &&
>> +             _mesa_has_EXT_render_snorm(ctx);
>>      case GL_RGB32F:
>>      case GL_RGB32I:
>>      case GL_RGB32UI:
>> @@ -741,8 +749,6 @@ is_format_color_renderable(const struct gl_context *ctx, mesa_format format,
>>      case GL_SRGB8:
>>      case GL_RGB10:
>>      case GL_RGB9_E5:
>> -   case GL_RG8_SNORM:
>> -   case GL_R8_SNORM:
>>         return GL_FALSE;
>>      default:
>>         break;
>> @@ -1997,25 +2003,34 @@ _mesa_base_fbo_format(const struct gl_context *ctx, GLenum internalFormat)
>>         return ctx->API != API_OPENGLES && ctx->Extensions.ARB_texture_rg
>>            ? GL_RG : 0;
>>      /* signed normalized texture formats */
>> -   case GL_RED_SNORM:
>>      case GL_R8_SNORM:
>> +      return _mesa_has_EXT_texture_snorm(ctx) || _mesa_has_EXT_render_snorm(ctx)
>> +         ? GL_RED : 0;
>> +   case GL_RED_SNORM:
>> +      return _mesa_has_EXT_texture_snorm(ctx) ? GL_RED : 0;
>>      case GL_R16_SNORM:
>> -      return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_snorm
>> +      return _mesa_has_EXT_texture_snorm(ctx) || _mesa_has_EXT_render_snorm(ctx)
> 
> Shouldn't the condition for R16, RG16, and RGBA16 be
> 	_mesa_has_EXT_texture_snorm(ctx) ||
> 	(_mesa_has_EXT_render_snorm(ctx) && _mesa_has_EXT_texture_norm16(ctx))
> ?

Yes, well spotted

> If so, with those changes applied, this series is
> Reviewed-by: Nanley Chery <nanley.g.chery at intel.com>

Many thanks Nanley for the review!

>>            ? GL_RED : 0;
>> -   case GL_RG_SNORM:
>>      case GL_RG8_SNORM:
>> +      return _mesa_has_EXT_texture_snorm(ctx) || _mesa_has_EXT_render_snorm(ctx)
>> +         ? GL_RG : 0;
>> +   case GL_RG_SNORM:
>> +      _mesa_has_EXT_texture_snorm(ctx) ? GL_RG : 0;
>>      case GL_RG16_SNORM:
>> -      return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_snorm
>> +      return _mesa_has_EXT_texture_snorm(ctx) || _mesa_has_EXT_render_snorm(ctx)
>>            ? GL_RG : 0;
>>      case GL_RGB_SNORM:
>>      case GL_RGB8_SNORM:
>>      case GL_RGB16_SNORM:
>>         return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_snorm
>>            ? GL_RGB : 0;
>> -   case GL_RGBA_SNORM:
>>      case GL_RGBA8_SNORM:
>> +      return _mesa_has_EXT_texture_snorm(ctx) || _mesa_has_EXT_render_snorm(ctx)
>> +         ? GL_RGBA : 0;
>> +   case GL_RGBA_SNORM:
>> +      return _mesa_has_EXT_texture_snorm(ctx) ? GL_RGBA : 0;
>>      case GL_RGBA16_SNORM:
>> -      return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_snorm
>> +      return _mesa_has_EXT_texture_snorm(ctx) || _mesa_has_EXT_render_snorm(ctx)
>>            ? GL_RGBA : 0;
>>      case GL_ALPHA_SNORM:
>>      case GL_ALPHA8_SNORM:
>> diff --git a/src/mesa/main/glformats.c b/src/mesa/main/glformats.c
>> index 667020c193..bbeb6034dd 100644
>> --- a/src/mesa/main/glformats.c
>> +++ b/src/mesa/main/glformats.c
>> @@ -3794,6 +3794,15 @@ _mesa_is_es3_color_renderable(const struct gl_context *ctx,
>>      case GL_RG16:
>>      case GL_RGBA16:
>>         return _mesa_has_EXT_texture_norm16(ctx);
>> +   case GL_R8_SNORM:
>> +   case GL_RG8_SNORM:
>> +   case GL_RGBA8_SNORM:
>> +      return _mesa_has_EXT_render_snorm(ctx);
>> +   case GL_R16_SNORM:
>> +   case GL_RG16_SNORM:
>> +   case GL_RGBA16_SNORM:
>> +      return _mesa_has_EXT_texture_norm16(ctx) &&
>> +             _mesa_has_EXT_render_snorm(ctx);
>>      default:
>>         return false;
>>      }
>> diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
>> index d71872835d..5ff23a57b1 100644
>> --- a/src/mesa/main/mtypes.h
>> +++ b/src/mesa/main/mtypes.h
>> @@ -4204,6 +4204,7 @@ struct gl_extensions
>>      GLboolean EXT_pixel_buffer_object;
>>      GLboolean EXT_point_parameters;
>>      GLboolean EXT_provoking_vertex;
>> +   GLboolean EXT_render_snorm;
>>      GLboolean EXT_semaphore;
>>      GLboolean EXT_semaphore_fd;
>>      GLboolean EXT_shader_integer_mix;
>> diff --git a/src/mesa/main/readpix.c b/src/mesa/main/readpix.c
>> index e8c28d8616..2cbb578a37 100644
>> --- a/src/mesa/main/readpix.c
>> +++ b/src/mesa/main/readpix.c
>> @@ -939,6 +939,25 @@ read_pixels_es3_error_check(struct gl_context *ctx, GLenum format, GLenum type,
>>                  return GL_NO_ERROR;
>>            }
>>         }
>> +      if (type == GL_SHORT) {
>> +         switch (internalFormat) {
>> +         case GL_R16_SNORM:
>> +         case GL_RG16_SNORM:
>> +         case GL_RGBA16_SNORM:
>> +            if (_mesa_has_EXT_texture_norm16(ctx) &&
>> +                _mesa_has_EXT_render_snorm(ctx))
>> +               return GL_NO_ERROR;
>> +         }
>> +      }
>> +      if (type == GL_BYTE) {
>> +         switch (internalFormat) {
>> +         case GL_R8_SNORM:
>> +         case GL_RG8_SNORM:
>> +         case GL_RGBA8_SNORM:
>> +            if (_mesa_has_EXT_render_snorm(ctx))
>> +               return GL_NO_ERROR;
>> +         }
>> +      }
>>         break;
>>      case GL_BGRA:
>>         /* GL_EXT_read_format_bgra */
>> diff --git a/src/mesa/main/teximage.c b/src/mesa/main/teximage.c
>> index 948c7df051..50cc4652ce 100644
>> --- a/src/mesa/main/teximage.c
>> +++ b/src/mesa/main/teximage.c
>> @@ -2468,7 +2468,8 @@ copytexture_error_check( struct gl_context *ctx, GLuint dimensions,
>>          * types for SNORM formats. Also, conversion to SNORM formats is not
>>          * allowed by Table 3.2 on Page 110.
>>          */
>> -      if (_mesa_is_enum_format_snorm(internalFormat)) {
>> +      if (!_mesa_has_EXT_render_snorm(ctx) &&
>> +          _mesa_is_enum_format_snorm(internalFormat)) {
>>            _mesa_error(ctx, GL_INVALID_OPERATION,
>>                        "glCopyTexImage%dD(internalFormat=%s)", dimensions,
>>                        _mesa_enum_to_string(internalFormat));
>> -- 
>> 2.14.4
>>


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