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mesa: add query support for GL_TRANSFORM_FEEDBACK_BUFFER interface

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Reviewed-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Timothy Arceri
2016-03-10 16:17:13 +11:00
parent 7234be0338
commit c5704bb350
4 changed files with 52 additions and 2 deletions
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35
src/mesa/main/shader_query.cpp
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@@ -61,6 +61,7 @@ DECL_RESOURCE_FUNC(UBO, gl_uniform_block);
DECL_RESOURCE_FUNC(UNI, gl_uniform_storage);
DECL_RESOURCE_FUNC(ATC, gl_active_atomic_buffer);
DECL_RESOURCE_FUNC(XFV, gl_transform_feedback_varying_info);
DECL_RESOURCE_FUNC(XFB, gl_transform_feedback_buffer);
DECL_RESOURCE_FUNC(SUB, gl_subroutine_function);
void GLAPIENTRY
@@ -670,6 +671,7 @@ _mesa_program_resource_index(struct gl_shader_program *shProg,
return RESOURCE_SUB(res)->index;
case GL_UNIFORM_BLOCK:
case GL_SHADER_STORAGE_BLOCK:
case GL_TRANSFORM_FEEDBACK_BUFFER:
case GL_TRANSFORM_FEEDBACK_VARYING:
default:
return calc_resource_index(shProg, res);
@@ -707,6 +709,7 @@ _mesa_program_resource_find_index(struct gl_shader_program *shProg,
case GL_UNIFORM_BLOCK:
case GL_ATOMIC_COUNTER_BUFFER:
case GL_SHADER_STORAGE_BLOCK:
case GL_TRANSFORM_FEEDBACK_BUFFER:
if (_mesa_program_resource_index(shProg, res) == index)
return res;
break;
@@ -1009,7 +1012,8 @@ get_buffer_property(struct gl_shader_program *shProg,
GET_CURRENT_CONTEXT(ctx);
if (res->Type != GL_UNIFORM_BLOCK &&
res->Type != GL_ATOMIC_COUNTER_BUFFER &&
res->Type != GL_SHADER_STORAGE_BLOCK)
res->Type != GL_SHADER_STORAGE_BLOCK &&
res->Type != GL_TRANSFORM_FEEDBACK_BUFFER)
goto invalid_operation;
if (res->Type == GL_UNIFORM_BLOCK) {
@@ -1110,6 +1114,30 @@ get_buffer_property(struct gl_shader_program *shProg,
}
return RESOURCE_ATC(res)->NumUniforms;
}
} else if (res->Type == GL_TRANSFORM_FEEDBACK_BUFFER) {
switch (prop) {
case GL_BUFFER_BINDING:
*val = RESOURCE_XFB(res)->Binding;
return 1;
case GL_NUM_ACTIVE_VARIABLES:
*val = RESOURCE_XFB(res)->NumVaryings;
return 1;
case GL_ACTIVE_VARIABLES:
int i = 0;
for ( ; i < shProg->LinkedTransformFeedback.NumVarying; i++) {
unsigned index =
shProg->LinkedTransformFeedback.Varyings[i].BufferIndex;
struct gl_program_resource *buf_res =
_mesa_program_resource_find_index(shProg,
GL_TRANSFORM_FEEDBACK_BUFFER,
index);
assert(buf_res);
if (res == buf_res) {
*val++ = i;
}
}
return RESOURCE_XFB(res)->NumVaryings;
}
}
assert(!"support for property type not implemented");
@@ -1140,6 +1168,7 @@ _mesa_program_resource_prop(struct gl_shader_program *shProg,
case GL_NAME_LENGTH:
switch (res->Type) {
case GL_ATOMIC_COUNTER_BUFFER:
case GL_TRANSFORM_FEEDBACK_BUFFER:
goto invalid_operation;
default:
/* Resource name length + terminator. */
@@ -1327,6 +1356,10 @@ _mesa_program_resource_prop(struct gl_shader_program *shProg,
VALIDATE_TYPE(GL_TRANSFORM_FEEDBACK_VARYING);
*val = RESOURCE_XFV(res)->BufferIndex;
return 1;
case GL_TRANSFORM_FEEDBACK_BUFFER_STRIDE:
VALIDATE_TYPE(GL_TRANSFORM_FEEDBACK_BUFFER);
*val = RESOURCE_XFB(res)->Stride * 4;
return 1;
default:
goto invalid_enum;