[Piglit] [PATCH 32/35] arb_enhanced_layouts: Test XFB layout qualifiers via SPIR-V
Alejandro Piñeiro
apinheiro at igalia.com
Thu Aug 9 11:36:11 UTC 2018
From: Neil Roberts <nroberts at igalia.com>
v2: use shader_test file with the spirv assembly, instead of include
two SPIRV binaries (Alejandro Piñeiro)
Signed-off-by: Neil Roberts <nroberts at igalia.com>
Signed-off-by: Alejandro Piñeiro <apinheiro at igalia.com>
---
tests/opengl.py | 22 +-
.../shader_test/gs_text_two_sets_tmpl.shader_test | 35 +++
.../shader_test/vs_passthru.shader_test | 53 ++++
.../shader_test/vs_two_sets.shader_test | 125 ++++++++
.../shader_test/vs_two_sets_ifc.shader_test | 128 ++++++++
.../shader_test/vs_two_sets_named_ifc.shader_test | 125 ++++++++
.../shader_test/vs_two_sets_struct.shader_test | 134 +++++++++
.../transform-feedback-layout-qualifiers.c | 322 +++++++++++----------
8 files changed, 784 insertions(+), 160 deletions(-)
create mode 100644 tests/spec/arb_enhanced_layouts/shader_test/gs_text_two_sets_tmpl.shader_test
create mode 100644 tests/spec/arb_enhanced_layouts/shader_test/vs_passthru.shader_test
create mode 100644 tests/spec/arb_enhanced_layouts/shader_test/vs_two_sets.shader_test
create mode 100644 tests/spec/arb_enhanced_layouts/shader_test/vs_two_sets_ifc.shader_test
create mode 100644 tests/spec/arb_enhanced_layouts/shader_test/vs_two_sets_named_ifc.shader_test
create mode 100644 tests/spec/arb_enhanced_layouts/shader_test/vs_two_sets_struct.shader_test
diff --git a/tests/opengl.py b/tests/opengl.py
index 9b1e09564..0b06d9505 100644
--- a/tests/opengl.py
+++ b/tests/opengl.py
@@ -2308,18 +2308,16 @@ with profile.test_list.group_manager(
'explicit-offset-bufferstorage')
g(['arb_enhanced_layouts-gs-stream-location-aliasing'],
'gs-stream-location-aliasing')
- g(['arb_enhanced_layouts-transform-feedback-layout-qualifiers', 'vs'],
- 'arb_enhanced_layouts-transform-feedback-layout-qualifiers_vs',
- run_concurrent=False)
- g(['arb_enhanced_layouts-transform-feedback-layout-qualifiers', 'vs_ifc'],
- 'arb_enhanced_layouts-transform-feedback-layout-qualifiers_vs_interface',
- run_concurrent=False)
- g(['arb_enhanced_layouts-transform-feedback-layout-qualifiers', 'vs_named_ifc'],
- 'arb_enhanced_layouts-transform-feedback-layout-qualifiers_vs_named_interface',
- run_concurrent=False)
- g(['arb_enhanced_layouts-transform-feedback-layout-qualifiers', 'vs_struct'],
- 'arb_enhanced_layouts-transform-feedback-layout-qualifiers_vs_struct',
- run_concurrent=False)
+ for test in ['vs', 'vs_ifc', 'vs_named_ifc', 'vs_struct']:
+ g(['arb_enhanced_layouts-transform-feedback-layout-qualifiers', test],
+ 'arb_enhanced_layouts-transform-feedback-layout-qualifiers_' + test,
+ run_concurrent=False)
+ g(['arb_enhanced_layouts-transform-feedback-layout-qualifiers',
+ test,
+ 'spirv'],
+ 'arb_enhanced_layouts-transform-feedback-layout-qualifiers_' +
+ test + '_spirv',
+ run_concurrent=False)
g(['arb_enhanced_layouts-transform-feedback-layout-qualifiers', 'gs'],
'arb_enhanced_layouts-transform-feedback-layout-qualifiers_gs',
run_concurrent=False)
diff --git a/tests/spec/arb_enhanced_layouts/shader_test/gs_text_two_sets_tmpl.shader_test b/tests/spec/arb_enhanced_layouts/shader_test/gs_text_two_sets_tmpl.shader_test
new file mode 100644
index 000000000..b58468b53
--- /dev/null
+++ b/tests/spec/arb_enhanced_layouts/shader_test/gs_text_two_sets_tmpl.shader_test
@@ -0,0 +1,35 @@
+[require]
+GLSL >= 4.50
+
+[geometry shader]
+#version 150
+#extension GL_ARB_enhanced_layouts: require
+#extension GL_ARB_gpu_shader5 : enable
+#define INVOCATION_MAX_N %u
+
+layout(points, invocations = INVOCATION_MAX_N) in;
+layout(points, max_vertices = 1) out;
+
+layout(xfb_offset = 0) out float x1_out;
+layout(xfb_offset = 4) out vec2 x2_out;
+layout(xfb_offset = 12) out vec3 x3_out;
+out vec3 not_captured1;
+layout(xfb_buffer = 2) out;
+layout(xfb_offset = 0) out float y1_out;
+layout(xfb_offset = 4) out vec4 y2_out;
+layout(xfb_buffer = 2) out vec3 not_captured2;
+
+void main() {
+ gl_Position = gl_in[0].gl_Position;
+ x1_out = 1.0 + gl_InvocationID;
+ x2_out = vec2(2.0 + gl_InvocationID, 3.0 + gl_InvocationID);
+ x3_out = vec3(4.0 + gl_InvocationID, 5.0 + gl_InvocationID,
+ 6.0 + gl_InvocationID);
+ y1_out = 7.0 + gl_InvocationID;
+ y2_out = vec4(8.0 + gl_InvocationID, 9.0 + gl_InvocationID,
+ 10.0 + gl_InvocationID, 11.0 + gl_InvocationID);
+ not_captured1 = vec3(1.0);
+ not_captured2 = vec3(1.0);
+ EmitVertex();
+ EndPrimitive();
+}
diff --git a/tests/spec/arb_enhanced_layouts/shader_test/vs_passthru.shader_test b/tests/spec/arb_enhanced_layouts/shader_test/vs_passthru.shader_test
new file mode 100644
index 000000000..f41a58e6a
--- /dev/null
+++ b/tests/spec/arb_enhanced_layouts/shader_test/vs_passthru.shader_test
@@ -0,0 +1,53 @@
+[require]
+GLSL >= 4.50
+
+[vertex shader spirv]
+; Automatically generated from the GLSL by shader_test_spirv.py. DO NOT EDIT
+; SPIR-V
+; Version: 1.0
+; Generator: Khronos Glslang Reference Front End; 7
+; Bound: 23
+; Schema: 0
+ OpCapability Shader
+ %1 = OpExtInstImport "GLSL.std.450"
+ OpMemoryModel Logical GLSL450
+ OpEntryPoint Vertex %main "main" %_ %gl_VertexID %gl_InstanceID
+ OpSource GLSL 450
+ OpName %_ ""
+ OpMemberDecorate %gl_PerVertex 0 BuiltIn Position
+ OpMemberDecorate %gl_PerVertex 1 BuiltIn PointSize
+ OpMemberDecorate %gl_PerVertex 2 BuiltIn ClipDistance
+ OpMemberDecorate %gl_PerVertex 3 BuiltIn CullDistance
+ OpDecorate %gl_PerVertex Block
+ OpDecorate %gl_VertexID BuiltIn VertexId
+ OpDecorate %gl_InstanceID BuiltIn InstanceId
+ %void = OpTypeVoid
+ %3 = OpTypeFunction %void
+ %float = OpTypeFloat 32
+ %v4float = OpTypeVector %float 4
+ %uint = OpTypeInt 32 0
+ %uint_1 = OpConstant %uint 1
+%_arr_float_uint_1 = OpTypeArray %float %uint_1
+%gl_PerVertex = OpTypeStruct %v4float %float %_arr_float_uint_1 %_arr_float_uint_1
+%_ptr_Output_gl_PerVertex = OpTypePointer Output %gl_PerVertex
+ %_ = OpVariable %_ptr_Output_gl_PerVertex Output
+ %int = OpTypeInt 32 1
+ %int_0 = OpConstant %int 0
+ %float_0 = OpConstant %float 0
+ %17 = OpConstantComposite %v4float %float_0 %float_0 %float_0 %float_0
+%_ptr_Output_v4float = OpTypePointer Output %v4float
+%_ptr_Input_int = OpTypePointer Input %int
+%gl_VertexID = OpVariable %_ptr_Input_int Input
+%gl_InstanceID = OpVariable %_ptr_Input_int Input
+ %main = OpFunction %void None %3
+ %5 = OpLabel
+ %19 = OpAccessChain %_ptr_Output_v4float %_ %int_0
+ OpStore %19 %17
+ OpReturn
+ OpFunctionEnd
+
+[vertex shader]
+#version 150
+void main() {
+ gl_Position = vec4(0.0);
+}
diff --git a/tests/spec/arb_enhanced_layouts/shader_test/vs_two_sets.shader_test b/tests/spec/arb_enhanced_layouts/shader_test/vs_two_sets.shader_test
new file mode 100644
index 000000000..bb4c6d500
--- /dev/null
+++ b/tests/spec/arb_enhanced_layouts/shader_test/vs_two_sets.shader_test
@@ -0,0 +1,125 @@
+[require]
+GLSL >= 4.50
+
+[vertex shader spirv]
+; Automatically generated from the GLSL by shader_test_spirv.py. DO NOT EDIT
+; SPIR-V
+; Version: 1.0
+; Generator: Khronos Glslang Reference Front End; 7
+; Bound: 50
+; Schema: 0
+ OpCapability Shader
+ OpCapability TransformFeedback
+ %1 = OpExtInstImport "GLSL.std.450"
+ OpMemoryModel Logical GLSL450
+ OpEntryPoint Vertex %main "main" %_ %x1_out %x2_out %x3_out %y1_out %y2_out %gl_VertexID %gl_InstanceID
+ OpExecutionMode %main Xfb
+ OpSource GLSL 450
+ OpSourceExtension "GL_ARB_enhanced_layouts"
+ OpName %_ ""
+ OpMemberDecorate %gl_PerVertex 0 BuiltIn Position
+ OpMemberDecorate %gl_PerVertex 1 BuiltIn PointSize
+ OpMemberDecorate %gl_PerVertex 2 BuiltIn ClipDistance
+ OpMemberDecorate %gl_PerVertex 3 BuiltIn CullDistance
+ OpDecorate %gl_PerVertex Block
+ OpDecorate %_ XfbBuffer 0
+ OpDecorate %_ XfbStride 24
+ OpDecorate %x1_out Location 0
+ OpDecorate %x1_out XfbBuffer 0
+ OpDecorate %x1_out XfbStride 24
+ OpDecorate %x1_out Offset 0
+ OpDecorate %x2_out Location 1
+ OpDecorate %x2_out XfbBuffer 0
+ OpDecorate %x2_out XfbStride 24
+ OpDecorate %x2_out Offset 4
+ OpDecorate %x3_out Location 3
+ OpDecorate %x3_out XfbBuffer 0
+ OpDecorate %x3_out XfbStride 24
+ OpDecorate %x3_out Offset 12
+ OpDecorate %y1_out Location 4
+ OpDecorate %y1_out XfbBuffer 2
+ OpDecorate %y1_out XfbStride 20
+ OpDecorate %y1_out Offset 0
+ OpDecorate %y2_out Location 5
+ OpDecorate %y2_out XfbBuffer 2
+ OpDecorate %y2_out XfbStride 20
+ OpDecorate %y2_out Offset 4
+ OpDecorate %gl_VertexID BuiltIn VertexId
+ OpDecorate %gl_InstanceID BuiltIn InstanceId
+ %void = OpTypeVoid
+ %3 = OpTypeFunction %void
+ %float = OpTypeFloat 32
+ %v4float = OpTypeVector %float 4
+ %uint = OpTypeInt 32 0
+ %uint_1 = OpConstant %uint 1
+%_arr_float_uint_1 = OpTypeArray %float %uint_1
+%gl_PerVertex = OpTypeStruct %v4float %float %_arr_float_uint_1 %_arr_float_uint_1
+%_ptr_Output_gl_PerVertex = OpTypePointer Output %gl_PerVertex
+ %_ = OpVariable %_ptr_Output_gl_PerVertex Output
+ %int = OpTypeInt 32 1
+ %int_0 = OpConstant %int 0
+ %float_0 = OpConstant %float 0
+ %17 = OpConstantComposite %v4float %float_0 %float_0 %float_0 %float_0
+%_ptr_Output_v4float = OpTypePointer Output %v4float
+%_ptr_Output_float = OpTypePointer Output %float
+ %x1_out = OpVariable %_ptr_Output_float Output
+ %float_1 = OpConstant %float 1
+ %uint_2 = OpConstant %uint 2
+%_arr_float_uint_2 = OpTypeArray %float %uint_2
+%_ptr_Output__arr_float_uint_2 = OpTypePointer Output %_arr_float_uint_2
+ %x2_out = OpVariable %_ptr_Output__arr_float_uint_2 Output
+ %float_2 = OpConstant %float 2
+ %int_1 = OpConstant %int 1
+ %float_3 = OpConstant %float 3
+ %v3float = OpTypeVector %float 3
+%_ptr_Output_v3float = OpTypePointer Output %v3float
+ %x3_out = OpVariable %_ptr_Output_v3float Output
+ %float_4 = OpConstant %float 4
+ %float_5 = OpConstant %float 5
+ %float_6 = OpConstant %float 6
+ %38 = OpConstantComposite %v3float %float_4 %float_5 %float_6
+ %y1_out = OpVariable %_ptr_Output_float Output
+ %float_7 = OpConstant %float 7
+ %y2_out = OpVariable %_ptr_Output_v4float Output
+ %float_8 = OpConstant %float 8
+ %float_9 = OpConstant %float 9
+ %float_10 = OpConstant %float 10
+ %float_11 = OpConstant %float 11
+ %46 = OpConstantComposite %v4float %float_8 %float_9 %float_10 %float_11
+%_ptr_Input_int = OpTypePointer Input %int
+%gl_VertexID = OpVariable %_ptr_Input_int Input
+%gl_InstanceID = OpVariable %_ptr_Input_int Input
+ %main = OpFunction %void None %3
+ %5 = OpLabel
+ %19 = OpAccessChain %_ptr_Output_v4float %_ %int_0
+ OpStore %19 %17
+ OpStore %x1_out %float_1
+ %28 = OpAccessChain %_ptr_Output_float %x2_out %int_0
+ OpStore %28 %float_2
+ %31 = OpAccessChain %_ptr_Output_float %x2_out %int_1
+ OpStore %31 %float_3
+ OpStore %x3_out %38
+ OpStore %y1_out %float_7
+ OpStore %y2_out %46
+ OpReturn
+ OpFunctionEnd
+
+[vertex shader]
+#version 150
+#extension GL_ARB_enhanced_layouts: require
+
+layout(xfb_offset = 0) out float x1_out;
+layout(xfb_offset = 4) out float x2_out[2];
+layout(xfb_offset = 12) out vec3 x3_out;
+layout(xfb_buffer = 2) out;
+layout(xfb_offset = 0, xfb_buffer = 2) out float y1_out;
+layout(xfb_offset = 4) out vec4 y2_out;
+void main() {
+ gl_Position = vec4(0.0);
+ x1_out = 1.0;
+ x2_out[0] = 2.0;
+ x2_out[1] = 3.0;
+ x3_out = vec3(4.0, 5.0, 6.0);
+ y1_out = 7.0;
+ y2_out = vec4(8.0, 9.0, 10.0, 11.0);
+}
diff --git a/tests/spec/arb_enhanced_layouts/shader_test/vs_two_sets_ifc.shader_test b/tests/spec/arb_enhanced_layouts/shader_test/vs_two_sets_ifc.shader_test
new file mode 100644
index 000000000..fa07d946d
--- /dev/null
+++ b/tests/spec/arb_enhanced_layouts/shader_test/vs_two_sets_ifc.shader_test
@@ -0,0 +1,128 @@
+[require]
+GLSL >= 4.50
+
+[vertex shader spirv]
+; Automatically generated from the GLSL by shader_test_spirv.py. DO NOT EDIT
+; SPIR-V
+; Version: 1.0
+; Generator: Khronos Glslang Reference Front End; 7
+; Bound: 55
+; Schema: 0
+ OpCapability Shader
+ OpCapability TransformFeedback
+ %1 = OpExtInstImport "GLSL.std.450"
+ OpMemoryModel Logical GLSL450
+ OpEntryPoint Vertex %main "main" %_ %__0 %__1 %gl_VertexID %gl_InstanceID
+ OpExecutionMode %main Xfb
+ OpSource GLSL 450
+ OpSourceExtension "GL_ARB_enhanced_layouts"
+ OpName %_ ""
+ OpName %__0 ""
+ OpName %__1 ""
+ OpMemberDecorate %gl_PerVertex 0 BuiltIn Position
+ OpMemberDecorate %gl_PerVertex 1 BuiltIn PointSize
+ OpMemberDecorate %gl_PerVertex 2 BuiltIn ClipDistance
+ OpMemberDecorate %gl_PerVertex 3 BuiltIn CullDistance
+ OpDecorate %gl_PerVertex Block
+ OpDecorate %_ XfbBuffer 0
+ OpDecorate %_ XfbStride 24
+ OpMemberDecorate %block 0 Offset 12
+ OpMemberDecorate %block 1 Offset 16
+ OpMemberDecorate %block 3 Offset 0
+ OpDecorate %block Block
+ OpDecorate %__0 Location 0
+ OpDecorate %__0 XfbBuffer 0
+ OpDecorate %__0 XfbStride 24
+ OpDecorate %block2 Block
+ OpDecorate %__1 Location 4
+ OpDecorate %__1 XfbBuffer 2
+ OpDecorate %__1 XfbStride 20
+ OpDecorate %__1 Offset 0
+ OpDecorate %gl_VertexID BuiltIn VertexId
+ OpDecorate %gl_InstanceID BuiltIn InstanceId
+ %void = OpTypeVoid
+ %3 = OpTypeFunction %void
+ %float = OpTypeFloat 32
+ %v4float = OpTypeVector %float 4
+ %uint = OpTypeInt 32 0
+ %uint_1 = OpConstant %uint 1
+%_arr_float_uint_1 = OpTypeArray %float %uint_1
+%gl_PerVertex = OpTypeStruct %v4float %float %_arr_float_uint_1 %_arr_float_uint_1
+%_ptr_Output_gl_PerVertex = OpTypePointer Output %gl_PerVertex
+ %_ = OpVariable %_ptr_Output_gl_PerVertex Output
+ %int = OpTypeInt 32 1
+ %int_0 = OpConstant %int 0
+ %float_0 = OpConstant %float 0
+ %17 = OpConstantComposite %v4float %float_0 %float_0 %float_0 %float_0
+%_ptr_Output_v4float = OpTypePointer Output %v4float
+ %v2float = OpTypeVector %float 2
+ %v3float = OpTypeVector %float 3
+ %block = OpTypeStruct %float %v2float %v3float %v3float
+%_ptr_Output_block = OpTypePointer Output %block
+ %__0 = OpVariable %_ptr_Output_block Output
+ %float_4 = OpConstant %float 4
+%_ptr_Output_float = OpTypePointer Output %float
+ %int_1 = OpConstant %int 1
+ %float_5 = OpConstant %float 5
+ %float_6 = OpConstant %float 6
+ %31 = OpConstantComposite %v2float %float_5 %float_6
+%_ptr_Output_v2float = OpTypePointer Output %v2float
+ %int_3 = OpConstant %int 3
+ %float_1 = OpConstant %float 1
+ %float_2 = OpConstant %float 2
+ %float_3 = OpConstant %float 3
+ %38 = OpConstantComposite %v3float %float_1 %float_2 %float_3
+%_ptr_Output_v3float = OpTypePointer Output %v3float
+ %block2 = OpTypeStruct %float %v4float
+%_ptr_Output_block2 = OpTypePointer Output %block2
+ %__1 = OpVariable %_ptr_Output_block2 Output
+ %float_7 = OpConstant %float 7
+ %float_8 = OpConstant %float 8
+ %float_9 = OpConstant %float 9
+ %float_10 = OpConstant %float 10
+ %float_11 = OpConstant %float 11
+ %50 = OpConstantComposite %v4float %float_8 %float_9 %float_10 %float_11
+%_ptr_Input_int = OpTypePointer Input %int
+%gl_VertexID = OpVariable %_ptr_Input_int Input
+%gl_InstanceID = OpVariable %_ptr_Input_int Input
+ %main = OpFunction %void None %3
+ %5 = OpLabel
+ %19 = OpAccessChain %_ptr_Output_v4float %_ %int_0
+ OpStore %19 %17
+ %27 = OpAccessChain %_ptr_Output_float %__0 %int_0
+ OpStore %27 %float_4
+ %33 = OpAccessChain %_ptr_Output_v2float %__0 %int_1
+ OpStore %33 %31
+ %40 = OpAccessChain %_ptr_Output_v3float %__0 %int_3
+ OpStore %40 %38
+ %45 = OpAccessChain %_ptr_Output_float %__1 %int_0
+ OpStore %45 %float_7
+ %51 = OpAccessChain %_ptr_Output_v4float %__1 %int_1
+ OpStore %51 %50
+ OpReturn
+ OpFunctionEnd
+
+[vertex shader]
+#version 150
+#extension GL_ARB_enhanced_layouts: require
+
+out block {
+ layout(xfb_offset = 12) out float x1_out;
+ layout(xfb_offset = 16) out vec2 x2_out;
+ layout(xfb_buffer = 0) out vec3 not_captured;
+ layout(xfb_offset = 0) out vec3 x3_out;
+};
+layout(xfb_buffer = 2) out;
+layout(xfb_offset = 0) out block2 {
+ float y1_out;
+ vec4 y2_out;
+};
+
+void main() {
+ gl_Position = vec4(0.0);
+ x1_out = 4.0;
+ x2_out = vec2(5.0, 6.0);
+ x3_out = vec3(1.0, 2.0, 3.0);
+ y1_out = 7.0;
+ y2_out = vec4(8.0, 9.0, 10.0, 11.0);
+}
diff --git a/tests/spec/arb_enhanced_layouts/shader_test/vs_two_sets_named_ifc.shader_test b/tests/spec/arb_enhanced_layouts/shader_test/vs_two_sets_named_ifc.shader_test
new file mode 100644
index 000000000..3efcb7bb9
--- /dev/null
+++ b/tests/spec/arb_enhanced_layouts/shader_test/vs_two_sets_named_ifc.shader_test
@@ -0,0 +1,125 @@
+[require]
+GLSL >= 4.50
+
+[vertex shader spirv]
+; Automatically generated from the GLSL by shader_test_spirv.py. DO NOT EDIT
+; SPIR-V
+; Version: 1.0
+; Generator: Khronos Glslang Reference Front End; 7
+; Bound: 55
+; Schema: 0
+ OpCapability Shader
+ OpCapability TransformFeedback
+ %1 = OpExtInstImport "GLSL.std.450"
+ OpMemoryModel Logical GLSL450
+ OpEntryPoint Vertex %main "main" %_ %x %y %gl_VertexID %gl_InstanceID
+ OpExecutionMode %main Xfb
+ OpSource GLSL 450
+ OpSourceExtension "GL_ARB_enhanced_layouts"
+ OpName %_ ""
+ OpMemberDecorate %gl_PerVertex 0 BuiltIn Position
+ OpMemberDecorate %gl_PerVertex 1 BuiltIn PointSize
+ OpMemberDecorate %gl_PerVertex 2 BuiltIn ClipDistance
+ OpMemberDecorate %gl_PerVertex 3 BuiltIn CullDistance
+ OpDecorate %gl_PerVertex Block
+ OpDecorate %_ XfbBuffer 0
+ OpDecorate %_ XfbStride 24
+ OpMemberDecorate %block 0 Offset 0
+ OpMemberDecorate %block 1 Offset 4
+ OpMemberDecorate %block 3 Offset 12
+ OpDecorate %block Block
+ OpDecorate %x Location 0
+ OpDecorate %x XfbBuffer 0
+ OpDecorate %x XfbStride 24
+ OpDecorate %block2 Block
+ OpDecorate %y Location 4
+ OpDecorate %y XfbBuffer 2
+ OpDecorate %y XfbStride 20
+ OpDecorate %y Offset 0
+ OpDecorate %gl_VertexID BuiltIn VertexId
+ OpDecorate %gl_InstanceID BuiltIn InstanceId
+ %void = OpTypeVoid
+ %3 = OpTypeFunction %void
+ %float = OpTypeFloat 32
+ %v4float = OpTypeVector %float 4
+ %uint = OpTypeInt 32 0
+ %uint_1 = OpConstant %uint 1
+%_arr_float_uint_1 = OpTypeArray %float %uint_1
+%gl_PerVertex = OpTypeStruct %v4float %float %_arr_float_uint_1 %_arr_float_uint_1
+%_ptr_Output_gl_PerVertex = OpTypePointer Output %gl_PerVertex
+ %_ = OpVariable %_ptr_Output_gl_PerVertex Output
+ %int = OpTypeInt 32 1
+ %int_0 = OpConstant %int 0
+ %float_0 = OpConstant %float 0
+ %17 = OpConstantComposite %v4float %float_0 %float_0 %float_0 %float_0
+%_ptr_Output_v4float = OpTypePointer Output %v4float
+ %v2float = OpTypeVector %float 2
+ %v3float = OpTypeVector %float 3
+ %block = OpTypeStruct %float %v2float %v3float %v3float
+%_ptr_Output_block = OpTypePointer Output %block
+ %x = OpVariable %_ptr_Output_block Output
+ %float_1 = OpConstant %float 1
+%_ptr_Output_float = OpTypePointer Output %float
+ %int_1 = OpConstant %int 1
+ %float_2 = OpConstant %float 2
+ %float_3 = OpConstant %float 3
+ %31 = OpConstantComposite %v2float %float_2 %float_3
+%_ptr_Output_v2float = OpTypePointer Output %v2float
+ %int_3 = OpConstant %int 3
+ %float_4 = OpConstant %float 4
+ %float_5 = OpConstant %float 5
+ %float_6 = OpConstant %float 6
+ %38 = OpConstantComposite %v3float %float_4 %float_5 %float_6
+%_ptr_Output_v3float = OpTypePointer Output %v3float
+ %block2 = OpTypeStruct %float %v4float
+%_ptr_Output_block2 = OpTypePointer Output %block2
+ %y = OpVariable %_ptr_Output_block2 Output
+ %float_7 = OpConstant %float 7
+ %float_8 = OpConstant %float 8
+ %float_9 = OpConstant %float 9
+ %float_10 = OpConstant %float 10
+ %float_11 = OpConstant %float 11
+ %50 = OpConstantComposite %v4float %float_8 %float_9 %float_10 %float_11
+%_ptr_Input_int = OpTypePointer Input %int
+%gl_VertexID = OpVariable %_ptr_Input_int Input
+%gl_InstanceID = OpVariable %_ptr_Input_int Input
+ %main = OpFunction %void None %3
+ %5 = OpLabel
+ %19 = OpAccessChain %_ptr_Output_v4float %_ %int_0
+ OpStore %19 %17
+ %27 = OpAccessChain %_ptr_Output_float %x %int_0
+ OpStore %27 %float_1
+ %33 = OpAccessChain %_ptr_Output_v2float %x %int_1
+ OpStore %33 %31
+ %40 = OpAccessChain %_ptr_Output_v3float %x %int_3
+ OpStore %40 %38
+ %45 = OpAccessChain %_ptr_Output_float %y %int_0
+ OpStore %45 %float_7
+ %51 = OpAccessChain %_ptr_Output_v4float %y %int_1
+ OpStore %51 %50
+ OpReturn
+ OpFunctionEnd
+
+[vertex shader]
+#version 150
+#extension GL_ARB_enhanced_layouts: require
+
+out block {
+ layout(xfb_offset = 0) out float x1_out;
+ layout(xfb_offset = 4) out vec2 x2_out;
+ layout(xfb_buffer = 0) out vec3 not_captured;
+ layout(xfb_offset = 12) out vec3 x3_out;
+} x;
+layout(xfb_buffer = 2) out;
+layout(xfb_offset = 0) out block2 {
+ float y1_out;
+ vec4 y2_out;
+} y;
+void main() {
+ gl_Position = vec4(0.0);
+ x.x1_out = 1.0;
+ x.x2_out = vec2(2.0, 3.0);
+ x.x3_out = vec3(4.0, 5.0, 6.0);
+ y.y1_out = 7.0;
+ y.y2_out = vec4(8.0, 9.0, 10.0, 11.0);
+}
\ No newline at end of file
diff --git a/tests/spec/arb_enhanced_layouts/shader_test/vs_two_sets_struct.shader_test b/tests/spec/arb_enhanced_layouts/shader_test/vs_two_sets_struct.shader_test
new file mode 100644
index 000000000..f84a4f3c3
--- /dev/null
+++ b/tests/spec/arb_enhanced_layouts/shader_test/vs_two_sets_struct.shader_test
@@ -0,0 +1,134 @@
+[require]
+GLSL >= 4.50
+
+[vertex shader spirv]
+; Automatically generated from the GLSL by shader_test_spirv.py. DO NOT EDIT
+; SPIR-V
+; Version: 1.0
+; Generator: Khronos Glslang Reference Front End; 7
+; Bound: 57
+; Schema: 0
+ OpCapability Shader
+ OpCapability TransformFeedback
+ %1 = OpExtInstImport "GLSL.std.450"
+ OpMemoryModel Logical GLSL450
+ OpEntryPoint Vertex %main "main" %_ %s1 %s2 %gl_VertexID %gl_InstanceID
+ OpExecutionMode %main Xfb
+ OpSource GLSL 450
+ OpSourceExtension "GL_ARB_enhanced_layouts"
+ OpName %_ ""
+ OpMemberDecorate %gl_PerVertex 0 BuiltIn Position
+ OpMemberDecorate %gl_PerVertex 1 BuiltIn PointSize
+ OpMemberDecorate %gl_PerVertex 2 BuiltIn ClipDistance
+ OpMemberDecorate %gl_PerVertex 3 BuiltIn CullDistance
+ OpDecorate %gl_PerVertex Block
+ OpDecorate %_ XfbBuffer 0
+ OpDecorate %_ XfbStride 24
+ OpDecorate %s1 Location 0
+ OpDecorate %s1 XfbBuffer 0
+ OpDecorate %s1 XfbStride 24
+ OpDecorate %s1 Offset 0
+ OpDecorate %s2 Location 6
+ OpDecorate %s2 XfbBuffer 2
+ OpDecorate %s2 XfbStride 20
+ OpDecorate %s2 Offset 0
+ OpDecorate %gl_VertexID BuiltIn VertexId
+ OpDecorate %gl_InstanceID BuiltIn InstanceId
+ %void = OpTypeVoid
+ %3 = OpTypeFunction %void
+ %float = OpTypeFloat 32
+ %v4float = OpTypeVector %float 4
+ %uint = OpTypeInt 32 0
+ %uint_1 = OpConstant %uint 1
+%_arr_float_uint_1 = OpTypeArray %float %uint_1
+%gl_PerVertex = OpTypeStruct %v4float %float %_arr_float_uint_1 %_arr_float_uint_1
+%_ptr_Output_gl_PerVertex = OpTypePointer Output %gl_PerVertex
+ %_ = OpVariable %_ptr_Output_gl_PerVertex Output
+ %int = OpTypeInt 32 1
+ %int_0 = OpConstant %int 0
+ %float_0 = OpConstant %float 0
+ %17 = OpConstantComposite %v4float %float_0 %float_0 %float_0 %float_0
+%_ptr_Output_v4float = OpTypePointer Output %v4float
+ %Array = OpTypeStruct %float
+ %uint_2 = OpConstant %uint 2
+%_arr_Array_uint_2 = OpTypeArray %Array %uint_2
+ %AoA = OpTypeStruct %_arr_Array_uint_2
+%_arr_AoA_uint_2 = OpTypeArray %AoA %uint_2
+ %S = OpTypeStruct %float %_arr_AoA_uint_2 %float
+%_ptr_Output_S = OpTypePointer Output %S
+ %s1 = OpVariable %_ptr_Output_S Output
+ %float_1 = OpConstant %float 1
+%_ptr_Output_float = OpTypePointer Output %float
+ %int_1 = OpConstant %int 1
+ %float_2 = OpConstant %float 2
+ %float_3 = OpConstant %float 3
+ %float_4 = OpConstant %float 4
+ %float_5 = OpConstant %float 5
+ %int_2 = OpConstant %int 2
+ %float_6 = OpConstant %float 6
+ %S2 = OpTypeStruct %float %v4float
+%_ptr_Output_S2 = OpTypePointer Output %S2
+ %s2 = OpVariable %_ptr_Output_S2 Output
+ %float_7 = OpConstant %float 7
+ %float_8 = OpConstant %float 8
+ %float_9 = OpConstant %float 9
+ %float_10 = OpConstant %float 10
+ %float_11 = OpConstant %float 11
+ %52 = OpConstantComposite %v4float %float_8 %float_9 %float_10 %float_11
+%_ptr_Input_int = OpTypePointer Input %int
+%gl_VertexID = OpVariable %_ptr_Input_int Input
+%gl_InstanceID = OpVariable %_ptr_Input_int Input
+ %main = OpFunction %void None %3
+ %5 = OpLabel
+ %19 = OpAccessChain %_ptr_Output_v4float %_ %int_0
+ OpStore %19 %17
+ %30 = OpAccessChain %_ptr_Output_float %s1 %int_0
+ OpStore %30 %float_1
+ %33 = OpAccessChain %_ptr_Output_float %s1 %int_1 %int_0 %int_0 %int_0 %int_0
+ OpStore %33 %float_2
+ %35 = OpAccessChain %_ptr_Output_float %s1 %int_1 %int_0 %int_0 %int_1 %int_0
+ OpStore %35 %float_3
+ %37 = OpAccessChain %_ptr_Output_float %s1 %int_1 %int_1 %int_0 %int_0 %int_0
+ OpStore %37 %float_4
+ %39 = OpAccessChain %_ptr_Output_float %s1 %int_1 %int_1 %int_0 %int_1 %int_0
+ OpStore %39 %float_5
+ %42 = OpAccessChain %_ptr_Output_float %s1 %int_2
+ OpStore %42 %float_6
+ %47 = OpAccessChain %_ptr_Output_float %s2 %int_0
+ OpStore %47 %float_7
+ %53 = OpAccessChain %_ptr_Output_v4float %s2 %int_1
+ OpStore %53 %52
+ OpReturn
+ OpFunctionEnd
+
+[vertex shader]
+#version 150
+#extension GL_ARB_enhanced_layouts: require
+
+struct Array {
+ float x2_out;
+};
+struct AoA {
+ Array x2_Array[2];
+};
+struct S {
+ float x1_out;
+ AoA x2_AoA[2];
+ float x3_out;
+};
+layout(xfb_offset = 0) out S s1;
+layout(xfb_offset = 0, xfb_buffer = 2) out struct S2 {
+ float y1_out;
+ vec4 y2_out;
+} s2;
+void main() {
+ gl_Position = vec4(0.0);
+ s1.x1_out = 1.0;
+ s1.x2_AoA[0].x2_Array[0].x2_out = 2.0;
+ s1.x2_AoA[0].x2_Array[1].x2_out = 3.0;
+ s1.x2_AoA[1].x2_Array[0].x2_out = 4.0;
+ s1.x2_AoA[1].x2_Array[1].x2_out = 5.0;
+ s1.x3_out = 6.0;
+ s2.y1_out = 7.0;
+ s2.y2_out = vec4(8.0, 9.0, 10.0, 11.0);
+}
diff --git a/tests/spec/arb_enhanced_layouts/transform-feedback-layout-qualifiers.c b/tests/spec/arb_enhanced_layouts/transform-feedback-layout-qualifiers.c
index b51a1ac4e..a18b95ccd 100644
--- a/tests/spec/arb_enhanced_layouts/transform-feedback-layout-qualifiers.c
+++ b/tests/spec/arb_enhanced_layouts/transform-feedback-layout-qualifiers.c
@@ -23,6 +23,8 @@
#include "piglit-util-gl.h"
+#include "piglit-shader-test.h"
+
PIGLIT_GL_TEST_CONFIG_BEGIN
config.supports_gl_compat_version = 32;
@@ -36,105 +38,13 @@ static const char vs_pass_thru_text[] =
" gl_Position = vec4(0.0);\n"
"}\n";
-static const char vs_two_sets_text[] =
- "#version 150\n"
- "#extension GL_ARB_enhanced_layouts: require\n"
- "\n"
- "layout(xfb_offset = 0) out float x1_out;\n"
- "layout(xfb_offset = 4) out float x2_out[2];\n"
- "layout(xfb_offset = 12) out vec3 x3_out;\n"
- "layout(xfb_buffer = 2) out;\n"
- "layout(xfb_offset = 0, xfb_buffer = 2) out float y1_out;\n"
- "layout(xfb_offset = 4) out vec4 y2_out;\n"
- "void main() {\n"
- " gl_Position = vec4(0.0);\n"
- " x1_out = 1.0;\n"
- " x2_out[0] = 2.0;\n"
- " x2_out[1] = 3.0;\n"
- " x3_out = vec3(4.0, 5.0, 6.0);\n"
- " y1_out = 7.0;\n"
- " y2_out = vec4(8.0, 9.0, 10.0, 11.0);\n"
- "}";
+#define VS_TWO_SETS_NAME "vs_two_sets.shader_test"
-static const char vs_two_sets_ifc_text[] =
- "#version 150\n"
- "#extension GL_ARB_enhanced_layouts: require\n"
- "\n"
- "out block {\n"
- " layout(xfb_offset = 12) out float x1_out;\n"
- " layout(xfb_offset = 16) out vec2 x2_out;\n"
- " layout(xfb_buffer = 0) out vec3 not_captured;\n"
- " layout(xfb_offset = 0) out vec3 x3_out;\n"
- "};"
- "layout(xfb_buffer = 2) out;\n"
- "layout(xfb_offset = 0) out block2 {\n"
- " float y1_out;\n"
- " vec4 y2_out;\n"
- "};\n"
- "void main() {\n"
- " gl_Position = vec4(0.0);\n"
- " x1_out = 4.0;\n"
- " x2_out = vec2(5.0, 6.0);\n"
- " x3_out = vec3(1.0, 2.0, 3.0);\n"
- " y1_out = 7.0;\n"
- " y2_out = vec4(8.0, 9.0, 10.0, 11.0);\n"
- "}";
+#define VS_TWO_SETS_IFC_NAME "vs_two_sets_ifc.shader_test"
-static const char vs_two_sets_named_ifc_text[] =
- "#version 150\n"
- "#extension GL_ARB_enhanced_layouts: require\n"
- "\n"
- "out block {\n"
- " layout(xfb_offset = 0) out float x1_out;\n"
- " layout(xfb_offset = 4) out vec2 x2_out;\n"
- " layout(xfb_buffer = 0) out vec3 not_captured;\n"
- " layout(xfb_offset = 12) out vec3 x3_out;\n"
- "} x;"
- "layout(xfb_buffer = 2) out;\n"
- "layout(xfb_offset = 0) out block2 {\n"
- " float y1_out;\n"
- " vec4 y2_out;\n"
- "} y;\n"
- "void main() {\n"
- " gl_Position = vec4(0.0);\n"
- " x.x1_out = 1.0;\n"
- " x.x2_out = vec2(2.0, 3.0);\n"
- " x.x3_out = vec3(4.0, 5.0, 6.0);\n"
- " y.y1_out = 7.0;\n"
- " y.y2_out = vec4(8.0, 9.0, 10.0, 11.0);\n"
- "}";
+#define VS_TWO_SETS_NAMED_IFC_NAME "vs_two_sets_named_ifc.shader_test"
-static const char vs_two_sets_struct_text[] =
- "#version 150\n"
- "#extension GL_ARB_enhanced_layouts: require\n"
- "\n"
- "struct Array {\n"
- " float x2_out;\n"
- "};\n"
- "struct AoA {\n"
- " Array x2_Array[2];\n"
- "};\n"
- "struct S {\n"
- " float x1_out;\n"
- " AoA x2_AoA[2];\n"
- " float x3_out;\n"
- "};"
- "layout(xfb_offset = 0) out S s1;\n"
- "layout(xfb_offset = 0, xfb_buffer = 2) out struct S2 {\n"
- " float y1_out;\n"
- " vec4 y2_out;\n"
- "} s2;\n"
- "void main() {\n"
- " gl_Position = vec4(0.0);\n"
- " s1.x1_out = 1.0;\n"
- " s1.x2_AoA[0].x2_Array[0].x2_out = 2.0;\n"
- " s1.x2_AoA[0].x2_Array[1].x2_out = 3.0;\n"
- " s1.x2_AoA[1].x2_Array[0].x2_out = 4.0;\n"
- " s1.x2_AoA[1].x2_Array[1].x2_out = 5.0;\n"
- " s1.x3_out = 6.0;\n"
- " s2.y1_out = 7.0;\n"
- " s2.y2_out = vec4(8.0, 9.0, 10.0, 11.0);\n"
- "}";
+#define VS_TWO_SETS_STRUCT_NAME "vs_two_sets_struct.shader_test"
static const char gs_text_two_sets_tmpl[] =
"#version 150\n"
@@ -167,13 +77,20 @@ static const char gs_text_two_sets_tmpl[] =
" EndPrimitive();\n"
"}";
+struct test_config {
+ const char *shader_test_filename;
+ bool spirv;
+ GLint gs_invocation_n;
+};
+
#define BUF_1_FLOAT_N 6
#define BUF_2_FLOAT_N 5
+
static void
print_usage_and_exit(const char *prog_name)
{
- printf("Usage: %s <subtest>\n"
+ printf("Usage: %s <subtest> [spirv]\n"
" where <subtest> is one of the following:\n"
" vs (vertex shader only)\n"
" vs_ifc (vertex shader only, with interface block)\n"
@@ -181,22 +98,84 @@ print_usage_and_exit(const char *prog_name)
" vs_struct (vertex shader only, with structs)\n"
" gs (with geometry shader invoked once per stage)\n"
" gs_max (with geometry shader invoked max times per "
- "stage)\n", prog_name);
+ "stage)\n"
+ " add “spirv” to the command line to use SPIR-V shaders "
+ "instead of GLSL. Only vs* tests suport SPIR-V shaders.\n",
+ prog_name);
piglit_report_result(PIGLIT_FAIL);
}
+static GLuint
+compile_spirv_program(GLenum shader_type,
+ const unsigned spirv_asm_size,
+ const char *spirv_asm)
+{
+ GLuint shader, prog;
+
+ shader = piglit_assemble_spirv(shader_type,
+ spirv_asm_size,
+ spirv_asm);
+
+ glSpecializeShader(shader,
+ "main",
+ 0, /* numSpecializationConstants */
+ NULL /* pConstantIndex */,
+ NULL /* pConstantValue */);
+
+ prog = glCreateProgram();
+ glAttachShader(prog, shader);
+ glDeleteShader(shader);
+
+ return prog;
+}
+
static void
-build_and_use_program(unsigned gs_invocation_n, const char *vs_text)
+build_and_use_program(const struct test_config *config)
{
GLuint prog;
- if (gs_invocation_n == 0) {
- prog = piglit_build_simple_program_multiple_shaders(
- GL_VERTEX_SHADER, vs_text, 0);
+ if (config->gs_invocation_n == 0) {
+ char filepath[4096];
+ char *source;
+ unsigned source_size;
+
+ piglit_join_paths(filepath,
+ sizeof(filepath),
+ 6, /* num parts */
+ piglit_source_dir(),
+ "tests",
+ "spec",
+ "arb_enhanced_layouts",
+ "shader_test",
+ config->shader_test_filename);
+
+ piglit_load_source_from_shader_test(filepath,
+ GL_VERTEX_SHADER,
+ config->spirv,
+ &source,
+ &source_size);
+
+ if (config->spirv) {
+ prog = compile_spirv_program(GL_VERTEX_SHADER,
+ source_size,
+ source);
+ } else {
+ prog = piglit_build_simple_program_multiple_shaders(
+ GL_VERTEX_SHADER, source, 0);
+ }
+
+ free(source);
} else {
+ if (config->spirv) {
+ fprintf(stderr, "SPIR-V not supported for this subtest\n");
+ piglit_report_result(PIGLIT_FAIL);
+ }
+
char *gs_text;
- (void)!asprintf(&gs_text, gs_text_two_sets_tmpl, gs_invocation_n);
+ (void)!asprintf(&gs_text,
+ gs_text_two_sets_tmpl,
+ config->gs_invocation_n);
prog = piglit_build_simple_program_multiple_shaders(
GL_VERTEX_SHADER, vs_pass_thru_text,
GL_GEOMETRY_SHADER, gs_text, 0);
@@ -268,72 +247,119 @@ probe_buffers(const GLuint *xfb, const GLuint *queries, unsigned primitive_n)
return pass;
}
-static unsigned
-parse_args(int argc, char **argv, const char **vs_text)
+static void
+parse_args(int argc, char **argv, struct test_config *config)
{
- GLint gs_invocation_n;
-
- if (argc != 2)
- print_usage_and_exit(argv[0]);
-
- if (strcmp(argv[1], "vs") == 0) {
- *vs_text = vs_two_sets_text;
- return 0;
+ int i, j;
+ bool option_was_handled = false;
+ static const struct {
+ const char *name;
+ const char *shader_test_filename;
+ unsigned gs_invocation_n;
+ } test_types[] = {
+ {
+ "vs",
+ "vs_two_sets.shader_test",
+ 0
+ },
+ {
+ "vs_ifc",
+ "vs_two_sets_ifc.shader_test",
+ 0
+ },
+ {
+ "vs_named_ifc",
+ "vs_two_sets_named_ifc.shader_test",
+ 0
+ },
+ {
+ "vs_struct",
+ "vs_two_sets_struct.shader_test",
+ 0
+ },
+ {
+ "gs",
+ NULL,
+ 1
+ },
+ {
+ "gs_max",
+ NULL,
+ INT_MAX
+ }
+ };
+
+ memset(config, 0, sizeof *config);
+
+ for (i = 1; i < argc; i++) {
+ for (j = 0; j < ARRAY_SIZE(test_types); j++) {
+ if (!strcmp(argv[i], test_types[j].name)) {
+ config->shader_test_filename =
+ test_types[j].shader_test_filename,
+ config->gs_invocation_n =
+ test_types[j].gs_invocation_n;
+ option_was_handled = true;
+ goto option_handled;
+ }
+ }
+
+ if (!strcmp(argv[i], "spirv"))
+ config->spirv = true;
+
+ option_handled:
+ continue;
}
- if (strcmp(argv[1], "vs_ifc") == 0) {
- *vs_text = vs_two_sets_ifc_text;
- return 0;
- }
-
- if (strcmp(argv[1], "vs_named_ifc") == 0) {
- *vs_text = vs_two_sets_named_ifc_text;
- return 0;
- }
-
- if (strcmp(argv[1], "vs_struct") == 0) {
- *vs_text = vs_two_sets_struct_text;
- return 0;
- }
-
- piglit_require_extension("GL_ARB_gpu_shader5");
-
- if (strcmp(argv[1], "gs") == 0)
- return 1;
-
- if (strcmp(argv[1], "gs_max") != 0)
+ if (!option_was_handled)
print_usage_and_exit(argv[0]);
-
- glGetIntegerv(GL_MAX_GEOMETRY_SHADER_INVOCATIONS, &gs_invocation_n);
- if (gs_invocation_n <= 0) {
- printf("Maximum amount of geometry shader invocations "
- "needs to be positive (%u).\n", gs_invocation_n);
- piglit_report_result(PIGLIT_FAIL);
- }
-
- return gs_invocation_n;
}
void
piglit_init(int argc, char **argv)
{
bool pass;
- unsigned primitive_n, gs_invocation_n;
- const char *vs_text;
+ unsigned primitive_n;
GLuint queries[2];
GLuint xfb[2];
GLuint vao;
+ struct test_config config;
piglit_require_GLSL_version(150);
piglit_require_extension("GL_ARB_transform_feedback3");
piglit_require_extension("GL_ARB_enhanced_layouts");
- gs_invocation_n = parse_args(argc, argv, &vs_text);
+ parse_args(argc, argv, &config);
+
+ if (config.gs_invocation_n > 0) {
+ piglit_require_extension("GL_ARB_gpu_shader5");
+
+ if (config.gs_invocation_n == INT_MAX) {
+ glGetIntegerv(GL_MAX_GEOMETRY_SHADER_INVOCATIONS,
+ &config.gs_invocation_n);
+ if (config.gs_invocation_n <= 0) {
+ printf("Maximum amount of geometry shader "
+ "invocations needs to be positive "
+ "(%u).\n",
+ config.gs_invocation_n);
+ piglit_report_result(PIGLIT_FAIL);
+ }
+ }
+ }
+
+ if (config.spirv) {
+ piglit_require_extension("GL_ARB_gl_spirv");
+
+ if (config.gs_invocation_n > 0) {
+ printf("Geometry shader invocations is not supported "
+ "with SPIR-V\n");
+ piglit_report_result(PIGLIT_FAIL);
+ }
+ }
/* Zero invocations means the feedback is produced by vertex shader */
- primitive_n = gs_invocation_n ? gs_invocation_n : 1;
+ primitive_n = config.gs_invocation_n ? config.gs_invocation_n : 1;
- build_and_use_program(gs_invocation_n, vs_text);
+ build_and_use_program(&config);
/* Set up the transform feedback buffers. */
glGenBuffers(ARRAY_SIZE(xfb), xfb);
--
2.14.1
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