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);
}
void
piglit_init(int argc, char **argv)
{
piglit_require_extension("GL_EXT_texture_norm16");
prog = piglit_build_simple_program(vs_source, fs_source);
if (piglit_is_extension_supported("GL_OES_texture_buffer"))
buf_prog = piglit_build_simple_program(vs_source,
fs_buf_source);
}
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);
}
void
piglit_init(int argc, char **argv)
{
GLuint Texture;
piglit_require_extension("GL_ARB_texture_float");
piglit_require_extension("GL_ARB_fragment_shader");
HaveRG = piglit_is_extension_supported("GL_ARB_texture_rg");
Program = piglit_build_simple_program(NULL, FragShaderText);
glUseProgram(Program);
BiasUniform = glGetUniformLocation(Program, "bias");
ScaleUniform = glGetUniformLocation(Program, "scale");
TexUniform = glGetUniformLocation(Program, "tex");
glUniform1f(BiasUniform, Bias);
glUniform1f(ScaleUniform, Scale);
glUniform1i(TexUniform, 0); /* tex unit zero */
(void) check_error(__FILE__, __LINE__);
glGenTextures(1, &Texture);
glBindTexture(GL_TEXTURE_2D, Texture);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE);
}
void
piglit_init(int argc, char **argv)
{
GLuint prog, i;
piglit_require_extension("GL_ARB_explicit_attrib_location");
piglit_require_extension("GL_ARB_explicit_uniform_location");
prog = piglit_build_simple_program(vs_text, fs_text);
/* verify that locations are sequential */
for (i = 0; i < 16; i++) {
char *element;
if (asprintf(&element, "a[%d]", i) == -1)
piglit_report_result(PIGLIT_FAIL);
if (glGetUniformLocation(prog, element) != 3 + i)
piglit_report_result(PIGLIT_FAIL);
free(element);
}
glDeleteProgram(prog);
piglit_report_result(PIGLIT_PASS);
}
void
piglit_init(int argc, char **argv)
{
GLuint buf;
GLint vertex;
piglit_require_gl_version(20);
prog = piglit_build_simple_program(vs, fs);
if (!prog) {
printf("Failed to compile/link program\n");
piglit_report_result(PIGLIT_FAIL);
}
glUseProgram(prog);
attr = glGetAttribLocation(prog, "attr");
vertex = glGetAttribLocation(prog, "vertex");
glGenBuffers(1, &buf);
glBindBuffer(GL_ARRAY_BUFFER, buf);
glBufferData(GL_ARRAY_BUFFER, sizeof(verts), verts, GL_STATIC_DRAW);
glVertexAttribPointer(vertex,
2, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(vertex);
}
void
piglit_init(int argc, char **argv)
{
piglit_require_GLSL();
piglit_require_extension("GL_ARB_instanced_arrays");
Program = piglit_build_simple_program(VertShaderText, FragShaderText);
glUseProgram(Program);
PosAttrib = glGetAttribLocation(Program, "Pos");
ColorAttrib = glGetAttribLocation(Program, "Color");
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glFrustum(-5, 5, -5, 5, 10, 20);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glTranslatef(0, 0, -11.0);
glScalef(0.5, 0.5, 1.0);
if ((argc >= 2) && (strcmp(argv[1], "vbo") == 0)) {
use_vbo = GL_TRUE;
}
}
void
piglit_init(int argc, char *argv[])
{
GLuint prog, array, buf;
glGenVertexArrays(1, &array);
glBindVertexArray(array);
glGenBuffers(1, &buf);
glBindBuffer(GL_ARRAY_BUFFER, buf);
prog = piglit_build_simple_program(vs_src, fs_src);
glVertexAttribPointer(0, /* index */
4, /* size */
GL_FLOAT, /* type */
GL_FALSE, /* normalized */
0, /* stride */
NULL /* pointer */);
glEnableVertexAttribArray(0);
#ifndef DISPLAY
glEnable(GL_RASTERIZER_DISCARD);
#endif
do_query_init(queries, ARRAY_SIZE(queries));
if (!piglit_link_check_status(prog)) {
glDeleteProgram(prog);
piglit_report_result(PIGLIT_FAIL);
}
glUseProgram(prog);
}
static void
create_program(struct program *program, const char *type)
{
char *fs_source, *vs_source;
GLuint prog;
char *threshold;
if (strcmp(type, "") == 0)
threshold = "vec4(0.02)";
else
threshold = "ivec4(1)";
if (test_vs) {
asprintf(&vs_source, vs_vert_source, type, type, type, type,
threshold);
fs_source = fs_vert_source;
} else {
vs_source = vs_frag_source;
asprintf(&fs_source, fs_frag_source, type, type, type, type,
threshold);
}
prog = piglit_build_simple_program(vs_source, fs_source);
program->prog = prog;
program->pos_location = glGetUniformLocation(prog, "pos");
program->expected_location = glGetUniformLocation(prog,
"expected");
vertex_location = glGetAttribLocation(prog, "vertex");
assert(vertex_location == 0);
}
void
piglit_init(int argc, char **argv)
{
/* Create the shaders */
prog = piglit_build_simple_program(vs_text, fs_text);
/* Create the multisampled framebuffer */
glGenFramebuffers(1, &fbo);
glGenRenderbuffers(1, &rb);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fbo);
glBindRenderbuffer(GL_RENDERBUFFER, rb);
glRenderbufferStorageMultisample(GL_RENDERBUFFER,
4 /* samples */,
GL_RGBA8 /* internalformat */,
piglit_width, piglit_height);
glFramebufferRenderbuffer(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
GL_RENDERBUFFER, rb);
if (glCheckFramebufferStatus(GL_DRAW_FRAMEBUFFER)
!= GL_FRAMEBUFFER_COMPLETE) {
printf("Framebuffer incomplete\n");
piglit_report_result(PIGLIT_FAIL);
}
if (!piglit_check_gl_error(GL_NO_ERROR))
piglit_report_result(PIGLIT_FAIL);
}
void
piglit_init(int argc, char **argv)
{
bool pass = true;
GLint prog = 0;
GLint active_attribs = 0;
GLint max_length = 0;
piglit_require_GLSL_version(150);
prog = piglit_build_simple_program(vs_source, fs_source);
glUseProgram(prog);
glGetProgramiv(prog, GL_ACTIVE_ATTRIBUTES, &active_attribs);
glGetProgramiv(prog, GL_ACTIVE_ATTRIBUTE_MAX_LENGTH, &max_length);
/*
* Check the size of the given attribute with the
* corresponding expected array size.
*/
pass = getAttribLocTest(prog, active_attribs, max_length, "a", 1) && pass;
pass = getAttribLocTest(prog, active_attribs, max_length, "b", 2) && pass;
pass = getAttribLocTest(prog, active_attribs, max_length, "c", 3) && pass;
pass = getAttribLocTest(prog, active_attribs, max_length, "d", 4) && pass;
pass = getAttribLocTest(prog, active_attribs, max_length, "e", 5) && pass;
glDeleteProgram(prog);
piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
}
void
piglit_init(int argc, char **argv)
{
GLuint vertIndex;
#ifdef PIGLIT_USE_OPENGL
piglit_require_extension("GL_ARB_base_instance");
#else
piglit_require_extension("GL_EXT_base_instance");
#endif
prog = piglit_build_simple_program(vstext, fstext);
glUseProgram(prog);
glGenBuffers(1, &vertBuff);
glBindBuffer(GL_ARRAY_BUFFER, vertBuff);
glBufferData(GL_ARRAY_BUFFER, vertSize, vertices, GL_STATIC_DRAW);
glGenBuffers(1, &indexBuf);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, indexBuf);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, indSize,
indices, GL_STATIC_DRAW);
glGenVertexArrays(1, &vao);
glBindVertexArray(vao);
vertIndex = glGetAttribLocation(prog, "vertex");
glBindBuffer(GL_ARRAY_BUFFER, vertBuff);
glEnableVertexAttribArray(vertIndex);
glVertexAttribPointer(vertIndex, 3, GL_FLOAT, GL_FALSE, 0, 0);
}
static bool
try_140_test()
{
bool pass = true;
GLint idx;
GLint binding;
prog140 = piglit_build_simple_program(vert140_source, frag140_source);
idx = glGetUniformBlockIndex(prog140, "U");
if (idx == -1) {
printf("Failed to get index for \"U\"\n");
pass = false;
}
glGetActiveUniformBlockiv(prog140, idx, GL_UNIFORM_BLOCK_BINDING,
&binding);
if (binding != 2) {
printf("Expected block binding = 2, got %d\n", binding);
pass = false;
}
pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
return pass;
}
static bool
try_150_test()
{
bool pass = true;
GLint idx;
GLint binding;
unsigned i;
prog150 = piglit_build_simple_program(vert150_source, frag150_source);
for (i = 0; i < 2; i++) {
char name[5] = "U[0]";
name[2] = '0' + i;
idx = glGetUniformBlockIndex(prog150, name);
if (idx == -1) {
printf("Failed to get index for \"%s\"\n", name);
pass = false;
}
glGetActiveUniformBlockiv(prog150, idx,
GL_UNIFORM_BLOCK_BINDING, &binding);
if (binding != (3 + i)) {
printf("Expected block binding = %d, got %d\n",
3 + i, binding);
pass = false;
}
}
pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
return pass;
}
void piglit_init(int argc, char **argv)
{
int i;
piglit_require_extension("GL_ARB_framebuffer_object");
piglit_require_extension("GL_ARB_texture_storage");
piglit_require_GLSL_version(120);
format = GL_RGBA8;
for (i = 1; i < argc; i++) {
if (strcmp(argv[i], "RGB9_E5") == 0) {
/* Test a non-renderable format. */
piglit_require_extension("GL_EXT_texture_shared_exponent");
format = GL_RGB9_E5;
}
else {
assert(0);
}
}
prog = piglit_build_simple_program(NULL, fs_3d);
glClearColor(0.25, 0.25, 0.25, 0.25);
}
void
piglit_init(int argc, char **argv)
{
enum piglit_result result;
GLuint render_program;
int i;
float green[4] = { 0.0, 1.0, 0.0, 1.0 };
cs_ids_common_init();
cs_ids_set_local_id_test();
cs_ids_set_local_size(4, 4, 4);
cs_ids_set_global_size(4, 4, 4);
render_program =
piglit_build_simple_program(passthrough_vs_src,
green_fs_src);
glClearColor(0.0, 0.0, 0.0, 0.0);
for (i = 0; i < 2; i++) {
result = cs_ids_run_test();
if (result != PIGLIT_PASS)
piglit_report_result(result);
glUseProgram(render_program);
glClear(GL_COLOR_BUFFER_BIT);
piglit_draw_rect(-1, -1, 2, 2);
result = piglit_probe_rect_rgba(0, 0, piglit_width,
piglit_height, green)
? PIGLIT_PASS : PIGLIT_FAIL;
}
cs_ids_common_destroy();
piglit_report_result(result);
}
void
piglit_init(int argc, char **argv)
{
bool pass = true;
unsigned int i;
GLuint prog;
piglit_require_extension("GL_ARB_uniform_buffer_object");
prog = piglit_build_simple_program(NULL, source);
for (i = 0; i < ARRAY_SIZE(uniforms); i++) {
GLuint index;
GLint row_major;
glGetUniformIndices(prog, 1, &uniforms[i].name, &index);
if (index == GL_INVALID_INDEX) {
printf("Failed to get index for %s\n",
uniforms[i].name);
pass = false;
continue;
}
glGetActiveUniformsiv(prog, 1, &index, GL_UNIFORM_IS_ROW_MAJOR,
&row_major);
if (row_major != uniforms[i].row_major) {
fprintf(stderr, "Uniform %s should %sbe row major\n",
uniforms[i].name,
uniforms[i].row_major ? "" : "not ");
pass = false;
}
}
piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
}
void
piglit_init(int argc, char **argv)
{
int i;
GLint program[2];
bool pass = true;
float expected[] = {
0.0, 1.0, 0.0,
0.0, 0.0, 0.0
};
program[0] = piglit_build_simple_program_multiple_shaders(
GL_VERTEX_SHADER, vs_source,
GL_GEOMETRY_SHADER, gs_source,
GL_FRAGMENT_SHADER, fs_source,
0);
program[1] = piglit_build_simple_program(vs_source, fs_source);
for( i = 0; i < 2; i++) {
pass = test_gl_layer(program[i], 2, expected) && pass;
}
pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
}
static void
setup_shaders(void)
{
static const char *vsSrc =
"#version 150\n"
"in vec4 Attr0;"
"in vec4 Attr1;"
"smooth out vec4 fs_color0;"
"void main(void) {"
" gl_Position = Attr0;"
" fs_color0 = Attr1;"
"}";
static const char *fsSrc =
"#version 150\n"
"smooth in vec4 fs_color0;"
"out vec4 fragColor0;"
"void main(void) {"
" vec2 psCoords = gl_PointCoord;"
" fragColor0 = fs_color0;"
"}";
prog = piglit_build_simple_program(vsSrc, fsSrc);
glBindFragDataLocation(prog, 0, "fragColor0");
glLinkProgram(prog);
glUseProgram(prog);
}
static GLuint
make_program(void)
{
const char *snippet = sample_function->snippet;
int glsl_version = sample_function->glsl_version;
int snippet_length = strlen(snippet);
int snippet_pos = strstr(fragment_source, "SNIPPET") - fragment_source;
GLuint program;
char source[1000], *p = source;
if (glsl_version > 0) {
p += sprintf(p, "#version %i\n", glsl_version);
piglit_require_GLSL_version(glsl_version);
}
if (sample_function->extension) {
p += sprintf(p,
"#extension %s : require\n",
sample_function->extension);
piglit_require_extension(sample_function->extension);
}
memcpy(p, fragment_source, snippet_pos);
p += snippet_pos;
memcpy(p, snippet, snippet_length);
p += snippet_length;
memcpy(p,
fragment_source + snippet_pos + 7,
sizeof fragment_source - snippet_pos - 7);
program = piglit_build_simple_program(vertex_source, source);
return program;
}
void
piglit_init(int argc, char **argv)
{
char *vsCode;
char *fsCode;
piglit_require_extension("GL_ARB_texture_storage");
piglit_require_extension("GL_ARB_texture_view");
piglit_require_extension("GL_EXT_texture_array");
/* setup shaders and program object for 2DArray rendering */
asprintf(&vsCode,
"void main()\n"
"{\n"
" gl_Position = gl_Vertex;\n"
" gl_TexCoord[0] = gl_MultiTexCoord0;\n"
"}\n");
asprintf(&fsCode,
"#extension GL_EXT_texture_array : enable\n"
"uniform sampler2DArray tex;\n"
"void main()\n"
"{\n"
" vec4 color = texture2DArray(tex, gl_TexCoord[0].xyz);\n"
" gl_FragColor = vec4(color.xyz, 1.0);\n"
"}\n");
prog2Darray = piglit_build_simple_program(vsCode, fsCode);
free(fsCode);
free(vsCode);
tex_loc_2Darray = glGetUniformLocation(prog2Darray, "tex");
}
void
piglit_init(int argc, char **argv)
{
int maxloc;
GLuint prog;
char *f_sha;
piglit_require_extension("GL_ARB_explicit_uniform_location");
glGetIntegerv(GL_MAX_UNIFORM_LOCATIONS, &maxloc);
if (!piglit_check_gl_error(GL_NO_ERROR))
piglit_report_result(PIGLIT_FAIL);
/* test GL_MAX_UNIFORM_LOCATIONS - 1, 0, and a loc in between (1) */
if (asprintf(&f_sha, fs_template, maxloc - 1, 0, 1) == -1)
piglit_report_result(PIGLIT_FAIL);
prog = piglit_build_simple_program(vs_text, f_sha);
free(f_sha);
if (glGetUniformLocation(prog, "r") != maxloc - 1)
piglit_report_result(PIGLIT_FAIL);
if (glGetUniformLocation(prog, "g") != 0)
piglit_report_result(PIGLIT_FAIL);
if (glGetUniformLocation(prog, "b") != 1)
piglit_report_result(PIGLIT_FAIL);
glDeleteProgram(prog);
piglit_report_result(PIGLIT_PASS);
}
void
piglit_init(int argc, char **argv)
{
GLuint prog;
char *vs_text;
if (strcmp(argv[1], "drawid") == 0) {
(void)!asprintf(&vs_text, vs_template,
"ref.x == gl_DrawIDARB");
} else if (strcmp(argv[1], "vertexid") == 0) {
(void)!asprintf(&vs_text, vs_template,
"ref.x == gl_DrawIDARB && ref.y == gl_VertexID");
} else {
printf("Unknown subtest: %s\n", argv[1]);
piglit_report_result(PIGLIT_FAIL);
}
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);
}
static bool
test_format(const struct uniform_type *type, bool row_major)
{
/* Using 140 to get unsigned ints. */
const char *fs_template =
"#version 140\n"
"layout(std140) uniform ubo {\n"
" float align_test;\n"
" %s%s u;\n"
"};\n"
"\n"
"void main() {\n"
" gl_FragColor = vec4(align_test);\n"
"}\n";
char *fs_source;
GLuint prog;
GLint data_size;
int expected;
const struct uniform_type *transposed_type;
if (row_major)
transposed_type = get_transposed_type(type);
else
transposed_type = type;
(void)!asprintf(&fs_source, fs_template,
row_major ? "layout(row_major) " : "",
type->type);
prog = piglit_build_simple_program(NULL, fs_source);
free(fs_source);
/* There's only one block, so it's uniform block 0. */
glGetActiveUniformBlockiv(prog, 0,
GL_UNIFORM_BLOCK_DATA_SIZE,
&data_size);
glDeleteProgram(prog);
/* "align_test" at the start of the UBO is a float, so our
* test uniform would start at byte 4 if not for alignment.
*/
expected = 4;
/* The actual space for our object. */
expected = align(expected, transposed_type->alignment);
expected += transposed_type->size;
/* Finally, align to a vec4 like std140 says. */
expected = align(expected, 16);
printf("%-20s %10s %10d %10d%s\n",
type->type,
row_major ? "y" : "n",
data_size,
expected,
data_size == expected ? "" : " FAIL");
return data_size == expected;
}
PIGLIT_GL_TEST_CONFIG_END
enum piglit_result
piglit_display(void)
{
static const char *vs_source =
"#version 140\n"
"in vec4 piglit_vertex;\n"
"void main()\n"
"{\n"
" gl_Position = piglit_vertex;\n"
"}\n";
static const char *fs_source =
"#version 140\n"
"uniform samplerBuffer s;\n"
"void main()\n"
"{\n"
" gl_FragColor = texelFetch(s, 0);\n"
"}\n";
bool pass = true;
GLuint tex, bo;
GLuint prog;
float green[] = {0, 1, 0, 0};
float blue[] = {0, 0, 1, 0};
uint8_t g_rgba8[] = {0x00, 0xff, 0x00, 0x00};
uint8_t b_rgba8[] = {0x00, 0x00, 0xff, 0x00};
prog = piglit_build_simple_program(vs_source, fs_source);
glUseProgram(prog);
glGenBuffers(1, &bo);
glBindBuffer(GL_TEXTURE_BUFFER, bo);
/* Make the buffer bigger than the data to trigger the driver
* code path we want.
*/
glBufferData(GL_TEXTURE_BUFFER, 4096, NULL, GL_STREAM_DRAW);
glBufferSubData(GL_TEXTURE_BUFFER, 0, sizeof(g_rgba8), g_rgba8);
glGenTextures(1, &tex);
glBindTexture(GL_TEXTURE_BUFFER, tex);
glTexBuffer(GL_TEXTURE_BUFFER, GL_RGBA8, bo);
piglit_draw_rect(-1, -1, 1, 2);
glBufferSubData(GL_TEXTURE_BUFFER, 0, sizeof(b_rgba8), b_rgba8);
piglit_draw_rect(0, -1, 1, 2);
pass = pass && piglit_probe_rect_rgba(0, 0,
piglit_width / 2, piglit_height,
green);
pass = pass && piglit_probe_rect_rgba(piglit_width / 2, 0,
piglit_width / 2, piglit_height,
blue);
piglit_present_results();
return pass ? PIGLIT_PASS : PIGLIT_FAIL;
}
void
piglit_init(int argc, char **argv)
{
piglit_require_extension("GL_ARB_framebuffer_object");
piglit_require_gl_version(20);
Program = piglit_build_simple_program(NULL, fragShaderText);
assert(Program);
}
void
piglit_init(int argc, char **argv)
{
piglit_require_GLSL_version(130);
glGenFramebuffers(1, &fbo);
glBindFramebuffer(GL_FRAMEBUFFER, fbo);
glGenTextures(1, &color0);
glBindTexture(GL_TEXTURE_2D, color0);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 64, 64, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, color0, 0);
glGenTextures(1, &color1);
glBindTexture(GL_TEXTURE_2D, color1);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 64, 64, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT1, GL_TEXTURE_2D, color1, 0);
glGenTextures(1, &color2);
glBindTexture(GL_TEXTURE_2D, color2);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 64, 64, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT2, GL_TEXTURE_2D, color2, 0);
glDrawBuffers(3, buffers);
prog = piglit_build_simple_program(
"#version 130\n"
"in vec4 pos;\n"
"void main() {\n"
" gl_Position = pos;\n"
"}\n",
"#version 130\n"
"void main() {\n"
" float alpha = float(int(gl_FragCoord.x / 16 + gl_FragCoord.y / 16) % 2);\n"
" /*Don't write color to draw buffer zero i.e. gl_FragData[0] */\n"
" gl_FragData[1] = vec4(1.0, 0.0, 0.0, alpha);\n"
" gl_FragData[2] = vec4(0.0, 1.0, 0.0, 1.0);\n"
"}\n"
);
if (!piglit_check_gl_error(GL_NO_ERROR)) {
printf("Setup for test failed.\n");
piglit_report_result(PIGLIT_SKIP);
}
if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE) {
printf("Framebuffer not complete.\n");
piglit_report_result(PIGLIT_SKIP);
}
}
void
piglit_init(int argc, char **argv)
{
GLuint prog;
prog = piglit_build_simple_program(vs_source, fs_source);
glUseProgram(prog);
color_index = glGetAttribLocation(prog, "in_color");
}
void
piglit_init(int argc, char **argv)
{
piglit_require_gl_version(30);
piglit_require_GLSL();
piglit_require_GLSL_version(130);
piglit_require_extension("GL_ARB_cull_distance");
prog = piglit_build_simple_program(vert, frag);
glUseProgram(prog);
}
void
piglit_init(int argc, char **argv)
{
GLuint prog;
piglit_require_extension("GL_ARB_draw_instanced");
prog = piglit_build_simple_program(vs_source, fs_source);
glUseProgram(prog);
}