[Piglit] [PATCH] texelFetch: Add geometry shader testing.

Paul Berry stereotype441 at gmail.com
Sun Jun 23 17:35:14 PDT 2013


---
 tests/all.tests                      |  6 ++--
 tests/texturing/shaders/common.c     |  3 ++
 tests/texturing/shaders/texelFetch.c | 69 ++++++++++++++++++++++++++++++++++--
 3 files changed, 72 insertions(+), 6 deletions(-)

diff --git a/tests/all.tests b/tests/all.tests
index 9c928a0..3a042a5 100644
--- a/tests/all.tests
+++ b/tests/all.tests
@@ -835,7 +835,7 @@ import_glsl_parser_tests(spec['glsl-1.30'],
 spec['glsl-1.30']['execution'] = Group()
 
 textureSize_samplers_130 = ['sampler1D', 'sampler2D', 'sampler3D', 'samplerCube', 'sampler1DShadow', 'sampler2DShadow', 'samplerCubeShadow', 'sampler1DArray', 'sampler2DArray', 'sampler1DArrayShadow', 'sampler2DArrayShadow', 'isampler1D', 'isampler2D', 'isampler3D', 'isamplerCube', 'isampler1DArray', 'isampler2DArray', 'usampler1D', 'usampler2D', 'usampler3D', 'usamplerCube', 'usampler1DArray', 'usampler2DArray']
-for stage in ['vs', 'fs']:
+for stage in ['vs', 'gs', 'fs']:
 	# textureSize():
 	for sampler in textureSize_samplers_130:
 		spec['glsl-1.30/execution/textureSize/' + stage + '-textureSize-' + sampler] = concurrent_test('textureSize ' + stage + ' ' + sampler)
@@ -882,7 +882,7 @@ add_shader_test_dir(spec['glsl-1.40'],
 spec['glsl-1.40']['execution']['tf-no-position'] = concurrent_test('glsl-1.40-tf-no-position')
 
 textureSize_samplers_140 = textureSize_samplers_130 + ['sampler2DRect', 'isampler2DRect', 'sampler2DRectShadow', 'samplerBuffer', 'isamplerBuffer', 'usamplerBuffer']
-for stage in ['vs', 'fs']:
+for stage in ['vs', 'gs', 'fs']:
 	# textureSize():
 	for sampler in textureSize_samplers_140:
 		spec['glsl-1.40/execution/textureSize/' + stage + '-textureSize-' + sampler] = concurrent_test('textureSize 140 ' + stage + ' ' + sampler)
@@ -935,7 +935,7 @@ for sample_count in MSAA_SAMPLE_COUNTS:
     spec['ARB_texture_multisample/fb-completeness/%d' % (sample_count,)] = \
         concurrent_test('arb_texture_multisample-fb-completeness %d' % (sample_count,))
     # texel-fetch execution
-    for stage in ['vs','fs']:
+    for stage in ['vs', 'gs', 'fs']:
         for sampler in samplers_atm:
                 spec['ARB_texture_multisample/texelFetch/%d-%s-%s' % (
                     sample_count, stage, sampler)] = \
diff --git a/tests/texturing/shaders/common.c b/tests/texturing/shaders/common.c
index 0b13d47..dba578a 100644
--- a/tests/texturing/shaders/common.c
+++ b/tests/texturing/shaders/common.c
@@ -333,6 +333,9 @@ require_GL_features(enum shader_target test_stage)
 
 	piglit_require_GLSL_version(shader_version);
 
+	if (test_stage == GS)
+		piglit_require_extension("GL_ARB_geometry_shader4");
+
 	if (swizzling)
 		piglit_require_extension("GL_EXT_texture_swizzle");
 
diff --git a/tests/texturing/shaders/texelFetch.c b/tests/texturing/shaders/texelFetch.c
index ebfdfe0..71f2b5e 100644
--- a/tests/texturing/shaders/texelFetch.c
+++ b/tests/texturing/shaders/texelFetch.c
@@ -33,7 +33,7 @@
  * ./bin/texelFetch usampler3D vs
  *
  * The test covers:
- * - All pipeline stages (VS, FS)
+ * - All pipeline stages (VS, GS, FS)
  * - Integer and floating point texture formats
  * - Sampler dimensionality (1D, 2D, 3D, 1DArray, 2DArray)
  * - Mipmapping
@@ -556,9 +556,10 @@ coordinate_size()
 int
 generate_GLSL(enum shader_target test_stage)
 {
-	int vs, fs, prog;
+	int vs, gs, fs, prog;
 
 	static char *vs_code;
+	static char *gs_code = NULL;
 	static char *fs_code;
 	const char *offset_func, *offset_arg;
 
@@ -621,6 +622,52 @@ generate_GLSL(enum shader_target test_stage)
 			 shader_version,
 			 sampler.return_type);
 		break;
+	case GS:
+		asprintf(&vs_code,
+			 "#version %d\n"
+			 "in vec4 pos;\n"
+			 "in ivec4 texcoord;\n"
+			 "flat out ivec4 texcoord_to_gs;\n"
+			 "void main()\n"
+			 "{\n"
+			 "    texcoord_to_gs = texcoord;\n"
+			 "    gl_Position = pos;\n"
+			 "}\n",
+			 shader_version);
+		asprintf(&gs_code,
+			 "#version %d\n"
+			 "#extension GL_ARB_geometry_shader4: require\n"
+			 "%s\n"
+			 "#define ivec1 int\n"
+			 "flat out %s color;\n"
+			 "flat in ivec4 texcoord_to_gs[1];\n"
+			 "uniform %s tex;\n"
+			 "void main()\n"
+			 "{\n"
+			 "    ivec4 texcoord = texcoord_to_gs[0];\n"
+			 "    color = texelFetch%s(tex, ivec%d(texcoord)%s%s);\n"
+			 "    gl_Position = gl_PositionIn[0];\n"
+			 "    EmitVertex();\n"
+			 "}\n",
+			 shader_version,
+			 has_samples() ? "#extension GL_ARB_texture_multisample: require" : "",
+			 sampler.return_type, sampler.name,
+			 offset_func,
+			 coordinate_size(),
+			 ((sampler.target == GL_TEXTURE_RECTANGLE) ?
+			  "" : ", texcoord.w"),
+			 offset_arg);
+		asprintf(&fs_code,
+			 "#version %d\n"
+			 "flat in %s color;\n"
+			 "uniform vec4 divisor;\n"
+			 "void main()\n"
+			 "{\n"
+			 "    gl_FragColor = vec4(color)/divisor;\n"
+			 "}\n",
+			 shader_version,
+			 sampler.return_type);
+		break;
 	case FS:
 		asprintf(&vs_code,
 			 "#version %d\n"
@@ -665,6 +712,13 @@ generate_GLSL(enum shader_target test_stage)
 		printf("VS code:\n%s", vs_code);
 		piglit_report_result(PIGLIT_FAIL);
 	}
+	if (gs_code) {
+		gs = piglit_compile_shader_text(GL_GEOMETRY_SHADER, gs_code);
+		if (!gs) {
+			printf("GS code:\n%s", gs_code);
+			piglit_report_result(PIGLIT_FAIL);
+		}
+	}
 	fs = piglit_compile_shader_text(GL_FRAGMENT_SHADER, fs_code);
 	if (!fs) {
 		printf("FS code:\n%s", fs_code);
@@ -672,6 +726,12 @@ generate_GLSL(enum shader_target test_stage)
 	}
 	prog = glCreateProgram();
 	glAttachShader(prog, vs);
+	if (gs_code) {
+		glAttachShader(prog, gs);
+		glProgramParameteri(prog, GL_GEOMETRY_INPUT_TYPE_ARB, GL_POINTS);
+		glProgramParameteri(prog, GL_GEOMETRY_OUTPUT_TYPE_ARB, GL_POINTS);
+		glProgramParameteri(prog, GL_GEOMETRY_VERTICES_OUT_ARB, 1);
+	}
 	glAttachShader(prog, fs);
 
 	glBindAttribLocation(prog, pos_loc, "pos");
@@ -718,7 +778,7 @@ supported_sampler()
 void
 fail_and_show_usage()
 {
-	printf("Usage: texelFetch [140] [offset] <vs|fs> <sampler type> "
+	printf("Usage: texelFetch [140] [offset] <vs|gs|fs> <sampler type> "
 	       "[sample_count] [swizzle] [piglit args...]\n");
 	piglit_report_result(PIGLIT_FAIL);
 }
@@ -738,6 +798,9 @@ piglit_init(int argc, char **argv)
 			if (strcmp(argv[i], "vs") == 0) {
 				test_stage = VS;
 				continue;
+			} else if (strcmp(argv[i], "gs") == 0) {
+				test_stage = GS;
+				continue;
 			} else if (strcmp(argv[i], "fs") == 0) {
 				test_stage = FS;
 				continue;
-- 
1.8.3.1



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