From: Roland Scheidegger <srol...@vmware.com>
This just verifies that sampler arrays indexed with a uniform work with TBOs.
(Broken on r600 evergreen pending a fix.)
v2: fix compiler warnings, directly assign index uniform in shader
---
tests/all.py | 1 +
.../arb_texture_buffer_object/CMakeLists.gl.txt | 1 +
tests/spec/arb_texture_buffer_object/indexed.c | 110 +++++++++++++++++++++
3 files changed, 112 insertions(+)
create mode 100644 tests/spec/arb_texture_buffer_object/indexed.c
diff --git a/tests/all.py b/tests/all.py
index ac1947ca4..0a1a65ef4 100644
--- a/tests/all.py
+++ b/tests/all.py
@@ -2483,6 +2483,7 @@ with profile.test_list.group_manager(
g(['arb_texture_buffer_object-subdata-sync'], 'subdata-sync')
g(['arb_texture_buffer_object-unused-name'], 'unused-name')
g(['arb_texture_buffer_object-render-no-bo'], 'render-no-bo')
+ g(['arb_texture_buffer_object-indexed'], 'indexed')
with profile.test_list.group_manager(
PiglitGLTest,
diff --git a/tests/spec/arb_texture_buffer_object/CMakeLists.gl.txt
b/tests/spec/arb_texture_buffer_object/CMakeLists.gl.txt
index ec0d0b463..959ca0c2f 100644
--- a/tests/spec/arb_texture_buffer_object/CMakeLists.gl.txt
+++ b/tests/spec/arb_texture_buffer_object/CMakeLists.gl.txt
@@ -24,3 +24,4 @@ piglit_add_executable (arb_texture_buffer_object-render-no-bo
render-no-bo.c)
piglit_add_executable (arb_texture_buffer_object-subdata-sync subdata-sync.c)
piglit_add_executable (arb_texture_buffer_object-unused-name unused-name.c)
piglit_add_executable (arb_texture_buffer_object-fetch-outside-bounds
fetch-outside-bounds.c)
+piglit_add_executable (arb_texture_buffer_object-indexed indexed.c)
diff --git a/tests/spec/arb_texture_buffer_object/indexed.c
b/tests/spec/arb_texture_buffer_object/indexed.c
new file mode 100644
index 000000000..e62c246f3
--- /dev/null
+++ b/tests/spec/arb_texture_buffer_object/indexed.c
@@ -0,0 +1,110 @@
+/* Copyright © 2015 Ilia Mirkin
+ * Copyright © 2017 VMware, Inc.
+ *
+ * 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 indexed.c
+ *
+ * Tests that we can sample texture buffers with sampler indexing.
+ */
+
+#include "piglit-util-gl.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+ config.supports_gl_core_version = 32;
+ config.window_visual = PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_RGBA;
+ config.khr_no_error_support = PIGLIT_NO_ERRORS;
+PIGLIT_GL_TEST_CONFIG_END
+
+enum piglit_result
+piglit_display(void)
+{
+ static const float green[4] = {0, 1, 0, 0};
+ bool pass;
+
+ glViewport(0, 0, piglit_width, piglit_height);
+ glClearColor(0.2, 0.2, 0.2, 0.2);
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ piglit_draw_rect(-1, -1, 2, 2);
+
+ pass = piglit_probe_rect_rgba(0, 0, piglit_width, piglit_height, green);
+
+ piglit_present_results();
+
+ return pass ? PIGLIT_PASS : PIGLIT_FAIL;
+}
+
+void
+piglit_init(int argc, char **argv)
+{
+ static const char *vs_source =
+ "#version 150\n"
+ "in vec4 piglit_vertex;\n"
+ "void main()\n"
+ "{\n"
+ " gl_Position = piglit_vertex;\n"
+ "}\n";
+
+ static const char *fs_source =
+ "#version 150\n"
+ "#extension GL_ARB_gpu_shader5: require\n"
+ "uniform samplerBuffer s[2];\n"
+ "uniform int offset;\n"
+ "uniform int index = 1;\n"
+ "void main()\n"
+ "{\n"
+ " gl_FragColor = texelFetch(s[index], offset);\n"
+ "}\n";
+
+ GLuint tex[2], tbo[2];
+ GLint indices[2] = { 0, 1 };
+ static const uint8_t datag[4] = {0x00, 0xff, 0x00, 0x00};
+ static const uint8_t datar[4] = {0xff, 0x00, 0x00, 0x00};
+ GLuint prog;
+ GLint size = 4;
+ piglit_require_extension("GL_ARB_gpu_shader5");
+
+ prog = piglit_build_simple_program(vs_source, fs_source);
+ glUseProgram(prog);
+
+ glGenBuffers(2, tbo);
+ glGenTextures(2, tex);
+ glBindBuffer(GL_TEXTURE_BUFFER, tbo[0]);
+ glBindTexture(GL_TEXTURE_BUFFER, tex[0]);
+ glTexBuffer(GL_TEXTURE_BUFFER, GL_RGBA8, tbo[0]);
+ glBufferData(GL_TEXTURE_BUFFER,
+ size * sizeof(datar), NULL, GL_STATIC_READ);
+ glBufferSubData(GL_TEXTURE_BUFFER,
+ (size - 1) * sizeof(datar), sizeof(datar), datar);
+
+ glActiveTexture(GL_TEXTURE1);
+ glBindBuffer(GL_TEXTURE_BUFFER, tbo[1]);
+ glBindTexture(GL_TEXTURE_BUFFER, tex[1]);
+ glTexBuffer(GL_TEXTURE_BUFFER, GL_RGBA8, tbo[1]);
+ glBufferData(GL_TEXTURE_BUFFER,
+ size * sizeof(datag), NULL, GL_STATIC_READ);
+ glBufferSubData(GL_TEXTURE_BUFFER,
+ (size - 1) * sizeof(datag), sizeof(datag), datag);
+
+ glUniform1i(glGetUniformLocation(prog, "offset"), size - 1);
+ glUniform1iv(glGetUniformLocation(prog, "s"), 2, indices);
+}
--
2.12.3
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