[Piglit] [PATCH] Add tests for GL_ARB_shader_draw_parameters
Kristian Høgsberg
hoegsberg at gmail.com
Wed Dec 16 10:20:38 PST 2015
On Wed, Dec 16, 2015 at 10:18 AM, Kristian Høgsberg <hoegsberg at gmail.com> wrote:
> From: Kristian Høgsberg Kristensen <kristian.h.kristensen at intel.com>
Oops, disregard this one, sent it from the wrong repo.
Kristian
> ---
> tests/spec/CMakeLists.txt | 1 +
> .../arb_shader_draw_parameters/CMakeLists.gl.txt | 15 ++
> .../spec/arb_shader_draw_parameters/CMakeLists.txt | 1 +
> .../spec/arb_shader_draw_parameters/baseinstance.c | 164 +++++++++++++++++++++
> tests/spec/arb_shader_draw_parameters/basevertex.c | 128 ++++++++++++++++
> .../arb_shader_draw_parameters/drawid-vertexid.c | 164 +++++++++++++++++++++
> tests/spec/arb_shader_draw_parameters/drawid.c | 161 ++++++++++++++++++++
> 7 files changed, 634 insertions(+)
> create mode 100644 tests/spec/arb_shader_draw_parameters/CMakeLists.gl.txt
> create mode 100644 tests/spec/arb_shader_draw_parameters/CMakeLists.txt
> create mode 100644 tests/spec/arb_shader_draw_parameters/baseinstance.c
> create mode 100644 tests/spec/arb_shader_draw_parameters/basevertex.c
> create mode 100644 tests/spec/arb_shader_draw_parameters/drawid-vertexid.c
> create mode 100644 tests/spec/arb_shader_draw_parameters/drawid.c
>
> diff --git a/tests/spec/CMakeLists.txt b/tests/spec/CMakeLists.txt
> index 57b6878..4c519b1 100644
> --- a/tests/spec/CMakeLists.txt
> +++ b/tests/spec/CMakeLists.txt
> @@ -138,3 +138,4 @@ add_subdirectory (mesa_pack_invert)
> add_subdirectory (ext_texture_format_bgra8888)
> add_subdirectory (oes_draw_elements_base_vertex)
> add_subdirectory (arb_query_buffer_object)
> +add_subdirectory (arb_shader_draw_parameters)
> diff --git a/tests/spec/arb_shader_draw_parameters/CMakeLists.gl.txt b/tests/spec/arb_shader_draw_parameters/CMakeLists.gl.txt
> new file mode 100644
> index 0000000..5396484
> --- /dev/null
> +++ b/tests/spec/arb_shader_draw_parameters/CMakeLists.gl.txt
> @@ -0,0 +1,15 @@
> +include_directories(
> + ${GLEXT_INCLUDE_DIR}
> + ${OPENGL_INCLUDE_PATH}
> + ${piglit_SOURCE_DIR}/tests/mesa/util
> +)
> +
> +link_libraries (
> + piglitutil_${piglit_target_api}
> + ${OPENGL_gl_LIBRARY}
> +)
> +
> +piglit_add_executable (basevertex basevertex.c)
> +piglit_add_executable (baseinstance baseinstance.c)
> +piglit_add_executable (drawid drawid.c)
> +piglit_add_executable (drawid-vertexid drawid-vertexid.c)
> diff --git a/tests/spec/arb_shader_draw_parameters/CMakeLists.txt b/tests/spec/arb_shader_draw_parameters/CMakeLists.txt
> new file mode 100644
> index 0000000..144a306
> --- /dev/null
> +++ b/tests/spec/arb_shader_draw_parameters/CMakeLists.txt
> @@ -0,0 +1 @@
> +piglit_include_target_api()
> diff --git a/tests/spec/arb_shader_draw_parameters/baseinstance.c b/tests/spec/arb_shader_draw_parameters/baseinstance.c
> new file mode 100644
> index 0000000..17ccc36
> --- /dev/null
> +++ b/tests/spec/arb_shader_draw_parameters/baseinstance.c
> @@ -0,0 +1,164 @@
> +/*
> + * Copyright © 2011 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 baseinstance.c
> + *
> + * Test that gl_BaseInstanceARB has the correct values. Draw left side
> + * of window with a non-instanced draw call to verify
> + * gl_BaseInstanceARB is 0 in that case, then draw other half with
> + * base instance 7 and verifies that that works.
> + */
> +
> +#include "piglit-util-gl.h"
> +
> +PIGLIT_GL_TEST_CONFIG_BEGIN
> +
> + config.supports_gl_core_version = 31;
> + config.window_visual = PIGLIT_GL_VISUAL_RGBA | PIGLIT_GL_VISUAL_DOUBLE;
> +
> +PIGLIT_GL_TEST_CONFIG_END
> +
> +static const char vs_text[] =
> + "#version 330\n"
> + "#extension GL_ARB_shader_draw_parameters: require\n"
> + "\n"
> + "/* This is floating point so we can use immediate mode */\n"
> + "layout(location = 0) in vec2 pos;\n"
> + "layout(location = 1) in vec4 in_color;\n"
> + "out vec4 color;\n"
> + "\n"
> + "void main()\n"
> + "{\n"
> + " gl_Position = vec4(pos, 0.0, 1.0);\n"
> + " color = vec4(equal(vec4(gl_BaseInstanceARB), in_color));\n"
> + "}\n";
> +
> +static const char fs_text[] =
> + "#version 130\n"
> + "\n"
> + "in vec4 color;\n"
> + "\n"
> + "void main()\n"
> + "{\n"
> + " gl_FragColor = color;\n"
> + "}\n";
> +
> +void
> +piglit_init(int argc, char **argv)
> +{
> + GLuint prog;
> +
> + piglit_require_GLSL_version(130);
> +
> + piglit_require_extension("GL_ARB_shader_draw_parameters");
> + piglit_require_extension("GL_ARB_base_instance");
> +
> + prog = piglit_build_simple_program(vs_text, fs_text);
> +
> + glUseProgram(prog);
> +}
> +
> +enum piglit_result
> +piglit_display()
> +{
> + bool pass;
> +
> + struct {
> + float vertex_array[16];
> + float color_array[32];
> + int indices[6];
> + } geometry = {
> + .vertex_array = {
> + -1, -1,
> + 0, -1,
> + 0, 1,
> + -1, 1,
> +
> + 0, -1,
> + 1, -1,
> + 1, 1,
> + 0, 1,
> + },
> + .color_array = {
> + 0.5, 0.0, 0.5, 0.5,
> + 0.5, 0.0, 0.5, 0.5,
> + 0.5, 0.0, 0.5, 0.5,
> + 0.5, 0.0, 0.5, 0.5,
> +
> + 0.5, 7.0, 0.5, 0.5,
> + 0.5, 7.0, 0.5, 0.5,
> + 0.5, 7.0, 0.5, 0.5,
> + 0.5, 7.0, 0.5, 0.5,
> + }
> + };
> +
> + const int indices[6] = {
> + 0, 1, 2,
> + 0, 2, 3,
> + };
> +
> + float green[] = {0, 1, 0, 0};
> +
> + GLuint vao, vbo;
> + glGenVertexArrays(1, &vao);
> + glBindVertexArray(vao);
> +
> + glGenBuffers(1, &vbo);
> + glBindBuffer(GL_ARRAY_BUFFER, vbo);
> + glBufferData(GL_ARRAY_BUFFER, sizeof(geometry), &geometry, GL_STATIC_DRAW);
> +
> + glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE,
> + 2 * sizeof(GLfloat),
> + (void *) ((char *) &geometry.vertex_array - (char *) &geometry));
> +
> + glVertexAttribPointer(1, 4, GL_FLOAT, GL_FALSE,
> + 4 * sizeof(GLfloat),
> + (void *) ((char *) &geometry.color_array - (char *) &geometry));
> +
> + /* Enable the attributes */
> + glEnableVertexAttribArray(0);
> + glEnableVertexAttribArray(1);
> +
> + glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, indices);
> +
> + /* We use this monster to draw the right half of the
> + * window. Base vertex so that we can reuse the indices to
> + * draw with vertices and colors 4-7, base instance so that we
> + * can verify that the value presented in the shader is
> + * correct. We only draw one instance so the only effect of
> + * instancing is that gl_BaseInstanceARB is 7.
> + */
> + glDrawElementsInstancedBaseVertexBaseInstance(GL_TRIANGLES, 6,
> + GL_UNSIGNED_INT,
> + indices, 1,
> + 4, /* basevertex */
> + 7 /* baseinstance */);
> +
> + pass = piglit_probe_rect_rgba(0, 0, piglit_width, piglit_height,
> + green);
> +
> + piglit_present_results();
> +
> + return pass ? PIGLIT_PASS : PIGLIT_FAIL;
> +}
> diff --git a/tests/spec/arb_shader_draw_parameters/basevertex.c b/tests/spec/arb_shader_draw_parameters/basevertex.c
> new file mode 100644
> index 0000000..c60788a
> --- /dev/null
> +++ b/tests/spec/arb_shader_draw_parameters/basevertex.c
> @@ -0,0 +1,128 @@
> +/*
> + * Copyright © 2011 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 basevertex.c
> + *
> + * Test that gl_BaseVertexARB has the correct values.
> + */
> +
> +#include "piglit-util-gl.h"
> +
> +PIGLIT_GL_TEST_CONFIG_BEGIN
> +
> + config.supports_gl_compat_version = 10;
> + config.window_visual = PIGLIT_GL_VISUAL_RGBA | PIGLIT_GL_VISUAL_DOUBLE;
> +
> +PIGLIT_GL_TEST_CONFIG_END
> +
> +static const char vs_text[] =
> + "#version 130\n"
> + "#extension GL_ARB_shader_draw_parameters: require\n"
> + "\n"
> + "/* This is floating point so we can use immediate mode */\n"
> + "out vec4 color;\n"
> + "\n"
> + "void main()\n"
> + "{\n"
> + " gl_Position = gl_Vertex;\n"
> + " color = vec4(equal(vec4(gl_BaseVertexARB), gl_Color));\n"
> + "}\n";
> +
> +static const char fs_text[] =
> + "#version 130\n"
> + "\n"
> + "in vec4 color;\n"
> + "\n"
> + "void main()\n"
> + "{\n"
> + " gl_FragColor = color;\n"
> + "}\n";
> +
> +void
> +piglit_init(int argc, char **argv)
> +{
> + GLuint prog;
> +
> + piglit_require_GLSL_version(130);
> +
> + piglit_require_extension("GL_ARB_shader_draw_parameters");
> +
> + prog = piglit_build_simple_program(vs_text, fs_text);
> +
> + glUseProgram(prog);
> +}
> +
> +enum piglit_result
> +piglit_display()
> +{
> + bool pass;
> + float vertex_array[] = {
> + -1, -1,
> + 0, -1,
> + 0, 1,
> + -1, 1,
> +
> + 0, -1,
> + 1, -1,
> + 1, 1,
> + 0, 1,
> + };
> + float color_array[] = {
> + 0.5, 0.0, 0.5, 0.5,
> + 0.5, 0.0, 0.5, 0.5,
> + 0.5, 0.0, 0.5, 0.5,
> + 0.5, 0.0, 0.5, 0.5,
> +
> + 0.5, 4.0, 0.5, 0.5,
> + 0.5, 4.0, 0.5, 0.5,
> + 0.5, 4.0, 0.5, 0.5,
> + 0.5, 4.0, 0.5, 0.5,
> +
> + };
> + int indices[] = {
> + 0, 1, 2,
> + 0, 2, 3,
> + };
> + float green[] = {0, 1, 0, 0};
> +
> + glVertexPointer(2, GL_FLOAT, 0, vertex_array);
> + glEnableClientState(GL_VERTEX_ARRAY);
> + glColorPointer(4, GL_FLOAT, 0, color_array);
> + glEnableClientState(GL_COLOR_ARRAY);
> +
> + glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, indices);
> +
> + glDrawElementsBaseVertex(GL_TRIANGLES, 6,
> + GL_UNSIGNED_INT, indices, 4);
> +
> + glDisableClientState(GL_COLOR_ARRAY);
> + glDisableClientState(GL_VERTEX_ARRAY);
> +
> + pass = piglit_probe_rect_rgba(0, 0, piglit_width, piglit_height,
> + green);
> +
> + piglit_present_results();
> +
> + return pass ? PIGLIT_PASS : PIGLIT_FAIL;
> +}
> diff --git a/tests/spec/arb_shader_draw_parameters/drawid-vertexid.c b/tests/spec/arb_shader_draw_parameters/drawid-vertexid.c
> new file mode 100644
> index 0000000..4d6649d
> --- /dev/null
> +++ b/tests/spec/arb_shader_draw_parameters/drawid-vertexid.c
> @@ -0,0 +1,164 @@
> +/*
> + * Copyright © 2011 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 baseinstance.c
> + *
> + * Test that gl_BaseInstanceARB has the correct values. Draw left side
> + * of window with a non-instanced draw call to verify
> + * gl_BaseInstanceARB is 0 in that case, then draw other half with
> + * base instance 7 and verifies that that works.
> + */
> +
> +#include "piglit-util-gl.h"
> +
> +PIGLIT_GL_TEST_CONFIG_BEGIN
> +
> + config.supports_gl_core_version = 31;
> + config.window_visual = PIGLIT_GL_VISUAL_RGBA | PIGLIT_GL_VISUAL_DOUBLE;
> +
> +PIGLIT_GL_TEST_CONFIG_END
> +
> +static const char vs_text[] =
> + "#version 330\n"
> + "#extension GL_ARB_shader_draw_parameters: require\n"
> + "\n"
> + "layout(location = 0) in vec2 pos;\n"
> + "layout(location = 1) in ivec2 reference;\n"
> + "out vec4 color;\n"
> + "\n"
> + "void main()\n"
> + "{\n"
> + " gl_Position = vec4(pos, 0.0, 1.0);\n"
> + " if (reference.x == gl_DrawIDARB &&\n"
> + " reference.y == gl_VertexID)\n"
> + " color = vec4(0, 1, 0, 1);\n"
> + " else\n"
> + " color = vec4(1, 0, 0, 1);\n"
> + "}\n";
> +
> +static const char fs_text[] =
> + "#version 130\n"
> + "\n"
> + "in vec4 color;\n"
> + "\n"
> + "void main()\n"
> + "{\n"
> + " gl_FragColor = color;\n"
> + "}\n";
> +
> +void
> +piglit_init(int argc, char **argv)
> +{
> + GLuint prog;
> +
> + piglit_require_GLSL_version(130);
> +
> + piglit_require_extension("GL_ARB_shader_draw_parameters");
> + piglit_require_extension("GL_ARB_base_instance");
> +
> + prog = piglit_build_simple_program(vs_text, fs_text);
> +
> + glUseProgram(prog);
> +}
> +
> +enum piglit_result
> +piglit_display()
> +{
> + bool pass;
> +
> + struct {
> + float vertex_array[16];
> + int reference_array[16];
> + int indices[6];
> + } geometry = {
> + .vertex_array = {
> + -1, -1,
> + 0, -1,
> + 0, 1,
> + -1, 1,
> +
> + 0, -1,
> + 1, -1,
> + 1, 1,
> + 0, 1,
> + },
> + .reference_array = {
> + 0, 0,
> + 0, 1,
> + 0, 2,
> + 0, 3,
> +
> + 1, 4,
> + 1, 5,
> + 1, 6,
> + 1, 7,
> + }
> + };
> +
> + const int indices[12] = {
> + 0, 1, 2,
> + 0, 2, 3,
> +
> + 4, 5, 6,
> + 4, 6, 7,
> + };
> +
> + float green[] = {0, 1, 0, 0};
> +
> + GLuint vao, vbo;
> + glGenVertexArrays(1, &vao);
> + glBindVertexArray(vao);
> +
> + glGenBuffers(1, &vbo);
> + glBindBuffer(GL_ARRAY_BUFFER, vbo);
> + glBufferData(GL_ARRAY_BUFFER, sizeof(geometry), &geometry, GL_STATIC_DRAW);
> +
> + glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE,
> + 2 * sizeof(GLfloat),
> + (void *) ((char *) &geometry.vertex_array - (char *) &geometry));
> +
> + glVertexAttribIPointer(1, 2, GL_UNSIGNED_INT,
> + 2 * sizeof(int),
> + (void *) ((char *) &geometry.reference_array - (char *) &geometry));
> +
> + /* Enable the attributes */
> + glEnableVertexAttribArray(0);
> + glEnableVertexAttribArray(1);
> +
> + GLsizei counts[2] = { 6, 6 };
> + const int *indices_array[2] = { &indices[0], &indices[6] };
> +
> + glMultiDrawElements(GL_TRIANGLES,
> + counts,
> + GL_UNSIGNED_INT,
> + (const void **) indices_array,
> + 2);
> +
> + pass = piglit_probe_rect_rgba(0, 0, piglit_width, piglit_height,
> + green);
> +
> + piglit_present_results();
> +
> + return pass ? PIGLIT_PASS : PIGLIT_FAIL;
> +}
> diff --git a/tests/spec/arb_shader_draw_parameters/drawid.c b/tests/spec/arb_shader_draw_parameters/drawid.c
> new file mode 100644
> index 0000000..6b65eac
> --- /dev/null
> +++ b/tests/spec/arb_shader_draw_parameters/drawid.c
> @@ -0,0 +1,161 @@
> +/*
> + * Copyright © 2011 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 baseinstance.c
> + *
> + * Test that gl_BaseInstanceARB has the correct values. Draw left side
> + * of window with a non-instanced draw call to verify
> + * gl_BaseInstanceARB is 0 in that case, then draw other half with
> + * base instance 7 and verifies that that works.
> + */
> +
> +#include "piglit-util-gl.h"
> +
> +PIGLIT_GL_TEST_CONFIG_BEGIN
> +
> + config.supports_gl_core_version = 31;
> + config.window_visual = PIGLIT_GL_VISUAL_RGBA | PIGLIT_GL_VISUAL_DOUBLE;
> +
> +PIGLIT_GL_TEST_CONFIG_END
> +
> +static const char vs_text[] =
> + "#version 330\n"
> + "#extension GL_ARB_shader_draw_parameters: require\n"
> + "\n"
> + "/* This is floating point so we can use immediate mode */\n"
> + "layout(location = 0) in vec2 pos;\n"
> + "layout(location = 1) in vec4 in_color;\n"
> + "out vec4 color;\n"
> + "\n"
> + "void main()\n"
> + "{\n"
> + " gl_Position = vec4(pos, 0.0, 1.0);\n"
> + " color = vec4(equal(vec4(gl_DrawIDARB), in_color));\n"
> + "}\n";
> +
> +static const char fs_text[] =
> + "#version 130\n"
> + "\n"
> + "in vec4 color;\n"
> + "\n"
> + "void main()\n"
> + "{\n"
> + " gl_FragColor = color;\n"
> + "}\n";
> +
> +void
> +piglit_init(int argc, char **argv)
> +{
> + GLuint prog;
> +
> + piglit_require_GLSL_version(130);
> +
> + piglit_require_extension("GL_ARB_shader_draw_parameters");
> + piglit_require_extension("GL_ARB_base_instance");
> +
> + prog = piglit_build_simple_program(vs_text, fs_text);
> +
> + glUseProgram(prog);
> +}
> +
> +enum piglit_result
> +piglit_display()
> +{
> + bool pass;
> +
> + struct {
> + float vertex_array[16];
> + float color_array[32];
> + int indices[6];
> + } geometry = {
> + .vertex_array = {
> + -1, -1,
> + 0, -1,
> + 0, 1,
> + -1, 1,
> +
> + 0, -1,
> + 1, -1,
> + 1, 1,
> + 0, 1,
> + },
> + .color_array = {
> + 0.5, 0.0, 0.5, 0.5,
> + 0.5, 0.0, 0.5, 0.5,
> + 0.5, 0.0, 0.5, 0.5,
> + 0.5, 0.0, 0.5, 0.5,
> +
> + 0.5, 1.0, 0.5, 0.5,
> + 0.5, 1.0, 0.5, 0.5,
> + 0.5, 1.0, 0.5, 0.5,
> + 0.5, 1.0, 0.5, 0.5,
> + }
> + };
> +
> + const int indices[12] = {
> + 0, 1, 2,
> + 0, 2, 3,
> +
> + 4, 5, 6,
> + 4, 6, 7,
> + };
> +
> + float green[] = {0, 1, 0, 0};
> +
> + GLuint vao, vbo;
> + glGenVertexArrays(1, &vao);
> + glBindVertexArray(vao);
> +
> + glGenBuffers(1, &vbo);
> + glBindBuffer(GL_ARRAY_BUFFER, vbo);
> + glBufferData(GL_ARRAY_BUFFER, sizeof(geometry), &geometry, GL_STATIC_DRAW);
> +
> + glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE,
> + 2 * sizeof(GLfloat),
> + (void *) ((char *) &geometry.vertex_array - (char *) &geometry));
> +
> + glVertexAttribPointer(1, 4, GL_FLOAT, GL_FALSE,
> + 4 * sizeof(GLfloat),
> + (void *) ((char *) &geometry.color_array - (char *) &geometry));
> +
> + /* Enable the attributes */
> + glEnableVertexAttribArray(0);
> + glEnableVertexAttribArray(1);
> +
> + GLsizei counts[2] = { 6, 6 };
> + const int *indices_array[2] = { &indices[0], &indices[6] };
> +
> + glMultiDrawElements(GL_TRIANGLES,
> + counts,
> + GL_UNSIGNED_INT,
> + (const void **) indices_array,
> + 2);
> +
> + pass = piglit_probe_rect_rgba(0, 0, piglit_width, piglit_height,
> + green);
> +
> + piglit_present_results();
> +
> + return pass ? PIGLIT_PASS : PIGLIT_FAIL;
> +}
> --
> 2.6.4
>
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