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 <[email protected]>
---
  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 <[email protected]>

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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