[Mesa-dev] [PATCH 05/11] mesa: Add image parameter queries for ARB_shader_image_load_store.

Chris Forbes chrisf at ijw.co.nz
Sun Nov 24 23:35:51 PST 2013


+      if (index > ctx->Const.MaxImageUnits)
+         goto invalid_value;

Image unit indices are zero-based, so I think you want >= in all these cases.

-- Chris

On Mon, Nov 25, 2013 at 6:00 PM, Francisco Jerez <currojerez at riseup.net> wrote:
> ---
>  src/mesa/main/get.c              | 70 ++++++++++++++++++++++++++++++++++++++++
>  src/mesa/main/get_hash_params.py |  9 ++++++
>  src/mesa/main/texparam.c         |  6 ++++
>  3 files changed, 85 insertions(+)
>
> diff --git a/src/mesa/main/get.c b/src/mesa/main/get.c
> index eee8550..db77a65 100644
> --- a/src/mesa/main/get.c
> +++ b/src/mesa/main/get.c
> @@ -145,6 +145,7 @@ enum value_extra {
>     EXTRA_GLSL_130,
>     EXTRA_EXT_UBO_GS4,
>     EXTRA_EXT_ATOMICS_GS4,
> +   EXTRA_EXT_SHADER_IMAGE_GS4,
>  };
>
>  #define NO_EXTRA NULL
> @@ -338,6 +339,11 @@ static const int extra_ARB_shader_atomic_counters_and_geometry_shader[] = {
>     EXTRA_END
>  };
>
> +static const int extra_ARB_shader_image_load_store_and_geometry_shader[] = {
> +   EXTRA_EXT_SHADER_IMAGE_GS4,
> +   EXTRA_END
> +};
> +
>  EXTRA_EXT(ARB_texture_cube_map);
>  EXTRA_EXT(MESA_texture_array);
>  EXTRA_EXT(NV_fog_distance);
> @@ -375,6 +381,7 @@ EXTRA_EXT(ARB_texture_buffer_range);
>  EXTRA_EXT(ARB_texture_multisample);
>  EXTRA_EXT(ARB_texture_gather);
>  EXTRA_EXT(ARB_shader_atomic_counters);
> +EXTRA_EXT(ARB_shader_image_load_store);
>
>  static const int
>  extra_ARB_color_buffer_float_or_glcore[] = {
> @@ -1023,6 +1030,11 @@ check_extra(struct gl_context *ctx, const char *func, const struct value_desc *d
>           api_found = (ctx->Extensions.ARB_shader_atomic_counters &&
>                        _mesa_has_geometry_shaders(ctx));
>           break;
> +      case EXTRA_EXT_SHADER_IMAGE_GS4:
> +         api_check = GL_TRUE;
> +         api_found = (ctx->Extensions.ARB_shader_image_load_store &&
> +                      _mesa_has_geometry_shaders(ctx));
> +         break;
>        case EXTRA_END:
>          break;
>        default: /* *e is a offset into the extension struct */
> @@ -1763,6 +1775,64 @@ find_value_indexed(const char *func, GLenum pname, GLuint index, union value *v)
>        if (index >= ctx->Const.VertexProgram.MaxAttribs)
>            goto invalid_value;
>        v->value_int = ctx->Array.ArrayObj->VertexBinding[VERT_ATTRIB_GENERIC(index)].Stride;
> +
> +   /* ARB_shader_image_load_store */
> +   case GL_IMAGE_BINDING_NAME: {
> +      struct gl_texture_object *t;
> +
> +      if (!ctx->Extensions.ARB_shader_image_load_store)
> +         goto invalid_enum;
> +      if (index > ctx->Const.MaxImageUnits)
> +         goto invalid_value;
> +
> +      t = ctx->ImageUnits[index].TexObj;
> +      v->value_int = (t ? t->Name : 0);
> +      return TYPE_INT;
> +   }
> +
> +   case GL_IMAGE_BINDING_LEVEL:
> +      if (!ctx->Extensions.ARB_shader_image_load_store)
> +         goto invalid_enum;
> +      if (index > ctx->Const.MaxImageUnits)
> +         goto invalid_value;
> +
> +      v->value_int = ctx->ImageUnits[index].Level;
> +      return TYPE_INT;
> +
> +   case GL_IMAGE_BINDING_LAYERED:
> +      if (!ctx->Extensions.ARB_shader_image_load_store)
> +         goto invalid_enum;
> +      if (index > ctx->Const.MaxImageUnits)
> +         goto invalid_value;
> +
> +      v->value_int = ctx->ImageUnits[index].Layered;
> +      return TYPE_INT;
> +
> +   case GL_IMAGE_BINDING_LAYER:
> +      if (!ctx->Extensions.ARB_shader_image_load_store)
> +         goto invalid_enum;
> +      if (index > ctx->Const.MaxImageUnits)
> +         goto invalid_value;
> +
> +      v->value_int = ctx->ImageUnits[index].Layer;
> +      return TYPE_INT;
> +
> +   case GL_IMAGE_BINDING_ACCESS:
> +      if (!ctx->Extensions.ARB_shader_image_load_store)
> +         goto invalid_enum;
> +      if (index > ctx->Const.MaxImageUnits)
> +         goto invalid_value;
> +
> +      v->value_int = ctx->ImageUnits[index].Access;
> +      return TYPE_INT;
> +
> +   case GL_IMAGE_BINDING_FORMAT:
> +      if (!ctx->Extensions.ARB_shader_image_load_store)
> +         goto invalid_enum;
> +      if (index > ctx->Const.MaxImageUnits)
> +         goto invalid_value;
> +
> +      v->value_int = ctx->ImageUnits[index].Format;
>        return TYPE_INT;
>     }
>
> diff --git a/src/mesa/main/get_hash_params.py b/src/mesa/main/get_hash_params.py
> index c961fee..ab7a900 100644
> --- a/src/mesa/main/get_hash_params.py
> +++ b/src/mesa/main/get_hash_params.py
> @@ -741,6 +741,15 @@ descriptor=[
>  # GL_ARB_vertex_attrib_binding
>    [ "MAX_VERTEX_ATTRIB_RELATIVE_OFFSET", "CONTEXT_ENUM(Const.MaxVertexAttribRelativeOffset), NO_EXTRA" ],
>    [ "MAX_VERTEX_ATTRIB_BINDINGS", "CONTEXT_ENUM(Const.MaxVertexAttribBindings), NO_EXTRA" ],
> +
> +# GL_ARB_shader_image_load_store
> +  [ "MAX_IMAGE_UNITS", "CONTEXT_INT(Const.MaxImageUnits), extra_ARB_shader_image_load_store"],
> +  [ "MAX_COMBINED_IMAGE_UNITS_AND_FRAGMENT_OUTPUTS", "CONTEXT_INT(Const.MaxCombinedImageUnitsAndFragmentOutputs), extra_ARB_shader_image_load_store"],
> +  [ "MAX_IMAGE_SAMPLES", "CONTEXT_INT(Const.MaxImageSamples), extra_ARB_shader_image_load_store"],
> +  [ "MAX_VERTEX_IMAGE_UNIFORMS", "CONTEXT_INT(Const.VertexProgram.MaxImageUniforms), extra_ARB_shader_image_load_store"],
> +  [ "MAX_GEOMETRY_IMAGE_UNIFORMS", "CONTEXT_INT(Const.GeometryProgram.MaxImageUniforms), extra_ARB_shader_image_load_store_and_geometry_shader"],
> +  [ "MAX_FRAGMENT_IMAGE_UNIFORMS", "CONTEXT_INT(Const.FragmentProgram.MaxImageUniforms), extra_ARB_shader_image_load_store"],
> +  [ "MAX_COMBINED_IMAGE_UNIFORMS", "CONTEXT_INT(Const.MaxCombinedImageUniforms), extra_ARB_shader_image_load_store"],
>  ]},
>
>  # Enums restricted to OpenGL Core profile
> diff --git a/src/mesa/main/texparam.c b/src/mesa/main/texparam.c
> index 7092c63..8268f26 100644
> --- a/src/mesa/main/texparam.c
> +++ b/src/mesa/main/texparam.c
> @@ -1763,6 +1763,12 @@ _mesa_GetTexParameteriv( GLenum target, GLenum pname, GLint *params )
>           *params = obj->Sampler.sRGBDecode;
>           break;
>
> +      case GL_IMAGE_FORMAT_COMPATIBILITY_TYPE:
> +         if (!ctx->Extensions.ARB_shader_image_load_store)
> +            goto invalid_pname;
> +         *params = obj->ImageFormatCompatibility;
> +         break;
> +
>        default:
>           goto invalid_pname;
>     }
> --
> 1.8.3.4
>
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