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

Francisco Jerez currojerez at riseup.net
Mon Nov 25 09:41:39 PST 2013


Chris Forbes <chrisf at ijw.co.nz> writes:

> +      if (index > ctx->Const.MaxImageUnits)
> +         goto invalid_value;
>
> Image unit indices are zero-based, so I think you want >= in all these cases.
>
Ouch...  Good catch.  I'll fix that.

Thanks.

> -- 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
>>
>> _______________________________________________
>> mesa-dev mailing list
>> mesa-dev at lists.freedesktop.org
>> http://lists.freedesktop.org/mailman/listinfo/mesa-dev
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