[Mesa-dev] [PATCH 2/4] ARB_Uniform_Buffer_Object: Draw test
Vincent Lejeune
vljn at ovi.com
Sun Dec 25 09:35:48 PST 2011
v2: add indirect addressing test
---
tests/all.tests | 1 +
.../arb_uniform_buffer_object/CMakeLists.gl.txt | 1 +
tests/spec/arb_uniform_buffer_object/draw_test.c | 246 ++++++++++++++++++++
3 files changed, 248 insertions(+), 0 deletions(-)
create mode 100644 tests/spec/arb_uniform_buffer_object/draw_test.c
diff --git a/tests/all.tests b/tests/all.tests
index 2ddfa39..de138be 100644
--- a/tests/all.tests
+++ b/tests/all.tests
@@ -1390,6 +1390,7 @@ arb_transform_feedback2['draw-auto'] = PlainExecTest(['arb_transform_feedback2-d
arb_uniform_buffer_object = Group()
spec['ARB_uniform_buffer_object'] = arb_uniform_buffer_object
arb_uniform_buffer_object['standard_layout'] = concurrent_test('arb_uniform_buffer_object_standard_layout')
+arb_uniform_buffer_object['draw_test'] = PlainExecTest('arb_uniform_buffer_object_draw_test')
ati_draw_buffers = Group()
spec['ATI_draw_buffers'] = ati_draw_buffers
diff --git a/tests/spec/arb_uniform_buffer_object/CMakeLists.gl.txt b/tests/spec/arb_uniform_buffer_object/CMakeLists.gl.txt
index 72478a4..8f46101 100644
--- a/tests/spec/arb_uniform_buffer_object/CMakeLists.gl.txt
+++ b/tests/spec/arb_uniform_buffer_object/CMakeLists.gl.txt
@@ -13,5 +13,6 @@ link_libraries (
)
add_executable (arb_uniform_buffer_object_standard_layout standard-layout.c)
+add_executable (arb_uniform_buffer_object_draw_test draw_test.c)
# vim: ft=cmake:
diff --git a/tests/spec/arb_uniform_buffer_object/draw_test.c b/tests/spec/arb_uniform_buffer_object/draw_test.c
new file mode 100644
index 0000000..544c700
--- /dev/null
+++ b/tests/spec/arb_uniform_buffer_object/draw_test.c
@@ -0,0 +1,246 @@
+/*
+ * Copyright © 2011 Marek Olšák <maraeo at gmail.com>
+ * Copyright © 2011 Vincent Lejeune
+ *
+ * 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.
+ */
+
+ /**
+ * ARB_uniform_buffer_object test
+ *
+ * This test checks that uniform buffer object layout is correctly used in a
+ * fragment shader.
+ * It checks if vector, structure based and array based uniform buffer object
+ * elements are correctly handled.
+ *
+ * We do not specify any layout (packed, shared or std140) so we query
+ * offset/size/stride information using the spec API.
+ */
+
+#include "piglit-util.h"
+
+int piglit_width = 64;
+int piglit_height = 64;
+int piglit_window_mode = GLUT_DOUBLE | GLUT_RGB | GLUT_ALPHA;
+
+static const char vert_shader_text[] =
+ "#version 130\n"
+ "in vec2 VertexPosition;\n"
+ "invariant gl_Position;\n"
+ "\n"
+ "void main ()\n"
+ "{\n"
+ " gl_Position = vec4 (VertexPosition, 0.0, 1.0);\n"
+ "}\n"
+;
+
+static const char frag_shader_text[] =
+ "#version 130\n"
+ "#extension GL_ARB_uniform_buffer_object : enable\n "
+ "uniform colors {\n"
+ " int mode;\n"
+ " int index;\n"
+ " vec3 red;\n"
+ " struct {\n"
+ " vec3 green;\n"
+ " vec3 blue;\n"
+ " } teststruct;\n"
+ " vec3 testarray[3];"
+ "};\n"
+ "out vec3 fragColor;\n"
+ "\n"
+ "void main()\n"
+ "{\n"
+ " if (mode == 0)\n"
+ " fragColor = red;\n"
+ " if (mode == 1)\n"
+ " fragColor = teststruct.green + teststruct.blue;\n"
+ " if (mode == 2)\n"
+ " {\n"
+ " fragColor = vec3(0.);\n"
+ " for(int i = 0; i < 3; i++)\n"
+ " fragColor += testarray[i];\n"
+ " }\n"
+ " if (mode == 3)\n"
+ " {\n"
+ " fragColor = testarray[index];"
+ " }\n"
+ "}\n"
+;
+
+GLuint prog;
+GLuint uniform_buf;
+GLuint vertex_buf;
+GLuint positionAttrib;
+GLint ubo_id;
+GLint ubo_size;
+
+
+static const float verts[] = {
+ -0.25, -0.25,
+ -0.25, 0.25,
+ 0.25, 0.25,
+ 0.25, -0.25
+};
+
+const char* uniform_names[] = {"mode","index","red","teststruct.green","teststruct.blue","testarray"};
+
+static const GLint idx = 1;
+static const float red[] = {1, 0, 0};
+static const float green[] = {0, 1, 0};
+static const float blue[] = {0, 0, 1};
+static const float green_and_blue[] = {0, 1, 1};
+static const float white[] = {1, 1, 1};
+static const float colorArray[][3] = {
+ {1, 0, 0},
+ {0, 1, 0},
+ {0, 0, 1},
+};
+
+#define SET_UNIFORM_VALUE_INT(name,value) \
+ { \
+ GLuint ubo_var_id; \
+ GLint ubo_var_offset; \
+ glGetUniformIndices(prog, 1, &(name), &ubo_var_id); \
+ glGetActiveUniformsiv(prog, 1, &ubo_var_id, GL_UNIFORM_OFFSET, &ubo_var_offset); \
+ glBufferSubData(GL_UNIFORM_BUFFER, ubo_var_offset, sizeof(GLint),value ); \
+ }
+
+#define SET_UNIFORM_VALUE(name,value) \
+ { \
+ GLuint ubo_var_id; \
+ GLint ubo_var_offset; \
+ glGetUniformIndices(prog, 1, &(name), &ubo_var_id); \
+ glGetActiveUniformsiv(prog, 1, &ubo_var_id, GL_UNIFORM_OFFSET, &ubo_var_offset); \
+ glBufferSubData(GL_UNIFORM_BUFFER, ubo_var_offset, sizeof(value),value ); \
+ }
+
+#define SET_UNIFORM_ARRAY(name,value) \
+ { \
+ GLuint ubo_var_id; \
+ GLint ubo_var_offset; \
+ GLint ubo_var_size; \
+ GLint ubo_var_stride; \
+ unsigned i; \
+ glGetUniformIndices(prog, 1, &(name), &ubo_var_id); \
+ glGetActiveUniformsiv(prog, 1, &ubo_var_id, GL_UNIFORM_OFFSET, &ubo_var_offset); \
+ glGetActiveUniformsiv(prog, 1, &ubo_var_id, GL_UNIFORM_SIZE, &ubo_var_size); \
+ glGetActiveUniformsiv(prog, 1, &ubo_var_id, GL_UNIFORM_ARRAY_STRIDE, &ubo_var_stride); \
+ for (i = 0; i < ubo_var_size; i++) \
+ glBufferSubData(GL_UNIFORM_BUFFER, ubo_var_offset + i * ubo_var_stride , sizeof((value)[i]),(value)[i] ); \
+ }
+
+void piglit_init(int argc, char **argv)
+{
+ GLuint vs;
+ GLuint fs;
+
+ piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE);
+
+ /* Check the driver. */
+ if (!GLEW_VERSION_1_5) {
+ fprintf(stderr, "OpenGL 1.5 required.\n");
+ piglit_report_result(PIGLIT_SKIP);
+ }
+ piglit_require_GLSL();
+ piglit_require_extension("GL_ARB_uniform_buffer_object");
+
+
+ /* Create shaders. */
+ vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vert_shader_text);
+ fs = piglit_compile_shader_text(GL_FRAGMENT_SHADER, frag_shader_text);
+ prog = piglit_CreateProgram();
+ piglit_AttachShader(prog,vs);
+ piglit_AttachShader(prog, fs);
+
+ piglit_LinkProgram(prog);
+ if (!piglit_link_check_status(prog)) {
+ piglit_DeleteProgram(prog);
+ piglit_report_result(PIGLIT_FAIL);
+ }
+
+ positionAttrib = glGetAttribLocation(prog,"VertexPosition");
+
+ glGenBuffers(1,&vertex_buf);
+ glBindBuffer(GL_ARRAY_BUFFER,vertex_buf);
+ glBufferData(GL_ARRAY_BUFFER,sizeof(verts),verts,GL_STATIC_DRAW);
+
+ ubo_id = glGetUniformBlockIndex(prog, "colors");
+ glGetActiveUniformBlockiv(prog, ubo_id,GL_UNIFORM_BLOCK_DATA_SIZE, &ubo_size);
+
+ /* Set up uniform buffer */
+ glGenBuffers(1,&uniform_buf);
+ glBindBuffer(GL_UNIFORM_BUFFER,uniform_buf);
+ glBufferData(GL_UNIFORM_BUFFER,ubo_size,0,GL_DYNAMIC_DRAW);
+
+ SET_UNIFORM_VALUE_INT(uniform_names[1],&idx)
+ SET_UNIFORM_VALUE(uniform_names[2],red)
+ SET_UNIFORM_VALUE(uniform_names[3],green)
+ SET_UNIFORM_VALUE(uniform_names[4],blue)
+ SET_UNIFORM_ARRAY(uniform_names[5],colorArray)
+
+ glBindBufferBase(GL_UNIFORM_BUFFER, 0, uniform_buf);
+ glUniformBlockBinding(prog, ubo_id, 0);
+
+ assert(glGetError() == 0);
+
+ glClearColor(0., 0., 0., 1.0);
+ glEnableClientState(GL_VERTEX_ARRAY);
+}
+
+static void
+render_mode(GLint mode)
+{
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ piglit_UseProgram(prog);
+ glLoadIdentity();
+
+ glBindBuffer(GL_UNIFORM_BUFFER,uniform_buf);
+ SET_UNIFORM_VALUE_INT(uniform_names[0],&mode);
+
+ glBindBuffer(GL_ARRAY_BUFFER, vertex_buf);
+ glVertexAttribPointer(positionAttrib,2,GL_FLOAT,GL_FALSE,8,0);
+ glEnableVertexAttribArray(positionAttrib);
+ glDrawArrays(GL_QUADS, 0, 4);
+
+ assert(glGetError() == 0);
+}
+
+enum piglit_result piglit_display(void)
+{
+ GLboolean pass = GL_TRUE;
+
+ render_mode(0);
+ pass = piglit_probe_pixel_rgb(32, 32, red) && pass;
+
+ render_mode(1);
+ pass = piglit_probe_pixel_rgb(32, 32, green_and_blue) && pass;
+
+ render_mode(2);
+ pass = piglit_probe_pixel_rgb(32, 32, white) && pass;
+
+ render_mode(3);
+ pass = piglit_probe_pixel_rgb(32, 32, green) && pass;
+
+ glutSwapBuffers();
+
+ return pass ? PIGLIT_PASS : PIGLIT_FAIL;
+}
--
1.7.7
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