This tests that rendering with no vertex attributes bound works, in the core profile. The vertex positions are determined using gl_VertexID.
This currently provokes some bad behavior in the i965 backend -- the whole array of constant data gets spilled to scratch to support the nonconstant index. Signed-off-by: Chris Forbes <[email protected]> --- tests/all.py | 1 + tests/spec/gl-3.1/CMakeLists.gl.txt | 1 + tests/spec/gl-3.1/attributeless-vertexid.c | 85 ++++++++++++++++++++++++++++++ 3 files changed, 87 insertions(+) create mode 100644 tests/spec/gl-3.1/attributeless-vertexid.c diff --git a/tests/all.py b/tests/all.py index 49c801a..e6134a9 100644 --- a/tests/all.py +++ b/tests/all.py @@ -1075,6 +1075,7 @@ for subtest in ['generated', 'written', 'flush']: gl31['required-renderbuffer-attachment-formats'] = concurrent_test('gl-3.0-required-renderbuffer-attachment-formats 31') gl31['required-sized-texture-formats'] = concurrent_test('gl-3.0-required-sized-texture-formats 31') gl31['required-texture-attachment-formats'] = concurrent_test('gl-3.0-required-texture-attachment-formats 31') +gl31['attributeless-vertexid'] = concurrent_test('gl-3.1-attributeless-vertexid') gl32 = {} spec['!OpenGL 3.2'] = gl32 diff --git a/tests/spec/gl-3.1/CMakeLists.gl.txt b/tests/spec/gl-3.1/CMakeLists.gl.txt index 7d835e8..cb60eb9 100644 --- a/tests/spec/gl-3.1/CMakeLists.gl.txt +++ b/tests/spec/gl-3.1/CMakeLists.gl.txt @@ -13,5 +13,6 @@ piglit_add_executable (gl-3.1-draw-buffers-errors draw-buffers-errors.c) piglit_add_executable (gl-3.1-genned-names genned-names.c) piglit_add_executable (gl-3.1-minmax minmax.c) piglit_add_executable (gl-3.1-primitive-restart-xfb primitive-restart-xfb.c) +piglit_add_executable (gl-3.1-attributeless-vertexid attributeless-vertexid.c) # vim: ft=cmake: diff --git a/tests/spec/gl-3.1/attributeless-vertexid.c b/tests/spec/gl-3.1/attributeless-vertexid.c new file mode 100644 index 0000000..012c460 --- /dev/null +++ b/tests/spec/gl-3.1/attributeless-vertexid.c @@ -0,0 +1,85 @@ +/* Copyright © 2014 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ + +/** @file attributeless-vertexid.c + * + * Test that rendering with no vertex attributes (but only using gl_VertexID) + * works in the core profile. + */ + +#include "piglit-util-gl-common.h" +#include "minmax-test.h" + +PIGLIT_GL_TEST_CONFIG_BEGIN + + config.supports_gl_core_version = 31; + config.window_visual = PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_RGBA; + +PIGLIT_GL_TEST_CONFIG_END + +const float red[] = { 1, 0, 0, 1 }; + +enum piglit_result +piglit_display(void) +{ + bool pass; + + glViewport(0, 0, piglit_width, piglit_height); + glClearColor(0.2, 0.2, 0.2, 0.2); + glClear(GL_COLOR_BUFFER_BIT); + + glDrawArrays(GL_TRIANGLE_FAN, 0, 4); + + pass = piglit_probe_rect_rgba(0, 0, piglit_width, piglit_height, red); + + piglit_present_results(); + + return pass ? PIGLIT_PASS : PIGLIT_FAIL; +} + +void +piglit_init(int argc, char **argv) +{ + GLuint prog = piglit_build_simple_program( + "#version 140\n" + "const vec2 verts[4] = vec2[](\n" + " vec2(-1, 1),\n" + " vec2(-1,-1),\n" + " vec2( 1,-1),\n" + " vec2( 1, 1)\n" + ");\n" + "void main() {\n" + " gl_Position = vec4(verts[gl_VertexID], 0, 1);\n" + "}\n", + + "#version 140\n" + "void main() {\n" + " gl_FragColor = vec4(1,0,0,1);\n" + "}\n"); + + GLuint vao; + + glUseProgram(prog); + + glGenVertexArrays(1, &vao); + glBindVertexArray(vao); +} -- 1.9.1 _______________________________________________ Piglit mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/piglit
