intern/cycles/blender/display_driver.cpp

@@ -54,44 +54,10 @@ int BlenderDisplayShader::get_tex_coord_attrib_location()
 /* --------------------------------------------------------------------
  * BlenderFallbackDisplayShader.
  */
-
-/* TODO move shaders to standalone .glsl file. */
-static const char *FALLBACK_VERTEX_SHADER =
-    "uniform vec2 fullscreen;\n"
-    "in vec2 texCoord;\n"
-    "in vec2 pos;\n"
-    "out vec2 texCoord_interp;\n"
-    "\n"
-    "vec2 normalize_coordinates()\n"
-    "{\n"
-    "   return (vec2(2.0) * (pos / fullscreen)) - vec2(1.0);\n"
-    "}\n"
-    "\n"
-    "void main()\n"
-    "{\n"
-    "   gl_Position = vec4(normalize_coordinates(), 0.0, 1.0);\n"
-    "   texCoord_interp = texCoord;\n"
-    "}\n\0";
-
-static const char *FALLBACK_FRAGMENT_SHADER =
-    "uniform sampler2D image_texture;\n"
-    "in vec2 texCoord_interp;\n"
-    "out vec4 fragColor;\n"
-    "\n"
-    "void main()\n"
-    "{\n"
-    "   fragColor = texture(image_texture, texCoord_interp);\n"
-    "}\n\0";
-
 static GPUShader *compile_fallback_shader(void)
 {
   /* NOTE: Compilation errors are logged to console. */
-  GPUShader *shader = GPU_shader_create(FALLBACK_VERTEX_SHADER,
-                                        FALLBACK_FRAGMENT_SHADER,
-                                        nullptr,
-                                        nullptr,
-                                        nullptr,
-                                        "FallbackCyclesBlitShader");
+  GPUShader *shader = GPU_shader_create_from_info_name("gpu_shader_cycles_display_fallback");
   return shader;
 }
 

source/blender/gpu/CMakeLists.txt

@@ -498,6 +498,9 @@ set(GLSL_SRC
   shaders/gpu_shader_gpencil_stroke_frag.glsl
   shaders/gpu_shader_gpencil_stroke_geom.glsl
 
+  shaders/gpu_shader_display_fallback_vert.glsl
+  shaders/gpu_shader_display_fallback_frag.glsl
+
   shaders/gpu_shader_cfg_world_clip_lib.glsl
   shaders/gpu_shader_colorspace_lib.glsl
 

source/blender/gpu/shaders/gpu_shader_display_fallback_frag.glsl

@@ -0,0 +1,5 @@
+
+void main()
+{
+   fragColor = texture(image_texture, texCoord_interp);
+}

source/blender/gpu/shaders/gpu_shader_display_fallback_vert.glsl

@@ -0,0 +1,11 @@
+
+vec2 normalize_coordinates()
+{
+   return (vec2(2.0) * (pos / fullscreen)) - vec2(1.0);
+}
+
+void main()
+{
+   gl_Position = vec4(normalize_coordinates(), 0.0, 1.0);
+   texCoord_interp = texCoord;
+}

source/blender/gpu/shaders/infos/gpu_shader_2D_image_overlays_merge_info.hh

@@ -22,3 +22,15 @@ GPU_SHADER_CREATE_INFO(gpu_shader_2D_image_overlays_merge)
     .vertex_source("gpu_shader_2D_image_vert.glsl")
     .fragment_source("gpu_shader_image_overlays_merge_frag.glsl")
     .do_static_compilation(true);
+
+/* Cycles display driver fallback shader. */
+GPU_SHADER_CREATE_INFO(gpu_shader_cycles_display_fallback)
+    .vertex_in(0, Type::VEC2, "pos")
+    .vertex_in(1, Type::VEC2, "texCoord")
+    .vertex_out(smooth_tex_coord_interp_iface)
+    .fragment_out(0, Type::VEC4, "fragColor")
+    .push_constant(Type::VEC2, "fullscreen")
+    .sampler(0, ImageType::FLOAT_2D, "image_texture")
+    .vertex_source("gpu_shader_display_fallback_vert.glsl")
+    .fragment_source("gpu_shader_display_fallback_frag.glsl")
+    .do_static_compilation(true);