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2026-05-06 23:44:13 +02:00
parent a5f787d80f
commit fd7038b853
1574 changed files with 365439 additions and 0 deletions
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+#!amber
+
+# Copyright 2020 Valve Corporation.
+# Copyright 2020 The Khronos Group Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+SHADER vertex vtx_passthrough PASSTHROUGH
+
+SHADER fragment frag_green GLSL
+#version 450
+layout(location=0) out vec4 out_color;
+void main() {
+  out_color = vec4(0.0, 1.0, 0.0, 1.0);
+}
+END
+
+SHADER vertex vtx_shader GLSL
+#version 450
+
+layout(location = 0) in vec4 position;
+layout(location = 0) out vec2 textureCoordinates;
+
+void main() {
+  gl_Position = position;
+  textureCoordinates = vec2(0.0, 0.0);
+}
+END
+
+SHADER fragment frag_shader SPIRV-ASM
+                           OpCapability Shader
+                           OpMemoryModel Logical GLSL450
+                           OpEntryPoint Fragment %main "main" %fragColor %vtxTexCoords
+                           OpExecutionMode %main OriginUpperLeft
+                           OpDecorate %fragColor Location 0 ; Output
+                           OpDecorate %vtxTexCoords Location 0 ; Input
+                           OpDecorate %sampler_ptr DescriptorSet 0
+                           OpDecorate %sampler_ptr Binding 0
+
+                           ; Basic types.
+                   %void = OpTypeVoid
+            %void_func_t = OpTypeFunction %void
+                  %float = OpTypeFloat 32
+                %v2float = OpTypeVector %float 2
+                %v4float = OpTypeVector %float 4
+               %image_2d = OpTypeImage %float 2D 0 0 0 1 Unknown
+            %sampled_img = OpTypeSampledImage %image_2d
+        %sampling_func_t = OpTypeFunction %v4float %sampled_img %v2float
+
+                           ; Pointer types.
+%sampled_img_uniform_ptr = OpTypePointer UniformConstant %sampled_img
+        %v4float_out_ptr = OpTypePointer Output %v4float
+      %v2float_input_ptr = OpTypePointer Input %v2float
+
+                           ; In/Out variables.
+              %fragColor = OpVariable %v4float_out_ptr Output
+            %sampler_ptr = OpVariable %sampled_img_uniform_ptr UniformConstant
+           %vtxTexCoords = OpVariable %v2float_input_ptr Input
+
+                           ; Main function.
+                   %main = OpFunction %void None %void_func_t
+             %main_label = OpLabel
+             %tex_coords = OpLoad %v2float %vtxTexCoords
+            %sampler_arg = OpLoad %sampled_img %sampler_ptr
+         %frag_color_val = OpFunctionCall %v4float %sampling_func %sampler_arg %tex_coords
+                           OpStore %fragColor %frag_color_val
+                           OpReturn
+                           OpFunctionEnd
+
+                           ; Auxiliar texture sampling function, receiving a sampled image as its argument.
+          %sampling_func = OpFunction %v4float None %sampling_func_t
+                %sampler = OpFunctionParameter %sampled_img
+                 %coords = OpFunctionParameter %v2float
+    %sampling_func_label = OpLabel
+                 %retval = OpImageSampleImplicitLod %v4float %sampler %coords
+                           OpReturnValue %retval
+                           OpFunctionEnd
+END
+
+# Full-screen quad.
+BUFFER position_buf DATA_TYPE vec4<float> DATA
+-1 -1    0 1
+ 1 -1    0 1
+-1  1    0 1
+-1  1    0 1
+ 1 -1    0 1
+ 1  1    0 1
+END
+
+BUFFER framebuffer FORMAT B8G8R8A8_UNORM
+BUFFER texture FORMAT R8G8B8A8_UNORM
+SAMPLER sampler
+
+PIPELINE graphics texgen_pipeline
+  ATTACH vtx_passthrough
+  ATTACH frag_green
+
+  FRAMEBUFFER_SIZE 1 1
+  BIND BUFFER texture AS color LOCATION 0
+END
+
+PIPELINE graphics main_pipeline
+  ATTACH vtx_shader
+  ATTACH frag_shader
+
+  VERTEX_DATA position_buf LOCATION 0
+  BIND BUFFER texture AS combined_image_sampler SAMPLER sampler DESCRIPTOR_SET 0 BINDING 0
+
+  FRAMEBUFFER_SIZE 64 64
+  BIND BUFFER framebuffer AS color LOCATION 0
+END
+
+CLEAR texgen_pipeline
+RUN texgen_pipeline DRAW_RECT POS 0 0 SIZE 1 1
+EXPECT texture IDX 0 0 SIZE 1 1 EQ_RGBA 0 255 0 255
+
+CLEAR_COLOR main_pipeline 0 0 0 255
+CLEAR main_pipeline
+RUN main_pipeline DRAW_ARRAY AS TRIANGLE_LIST START_IDX 0 COUNT 6
+EXPECT framebuffer IDX 0 0 SIZE 64 64 EQ_RGBA 0 255 0 255