Commit 5d512b2d authored by Marek Olšák's avatar Marek Olšák

arb_shader_texture_lod-texgrad: new test for texture2DGradARB GLSL function

parent da8de422
......@@ -988,10 +988,12 @@ add_plain_test(arb_es2_compatibility, 'arb_es2_compatibility-shadercompiler')
add_plain_test(arb_es2_compatibility, 'arb_es2_compatibility-releaseshadercompiler')
# Group ARB_shader_texture_lod
spec['ARB_shader_texture_lod'] = Group()
import_glsl_parser_tests(spec['ARB_shader_texture_lod'],
arb_shader_texture_lod = Group()
spec['ARB_shader_texture_lod'] = arb_shader_texture_lod
import_glsl_parser_tests(arb_shader_texture_lod,
os.path.dirname(__file__) + '/spec/arb_shader_texture_lod',
[''])
add_plain_test(arb_shader_texture_lod, 'arb_shader_texture_lod-texgrad')
# Group ARB_explicit_attrib_location
arb_explicit_attrib_location = Group()
......
add_subdirectory (arb_color_buffer_float)
add_subdirectory (arb_es2_compatibility)
add_subdirectory (arb_shader_texture_lod)
add_subdirectory (ati_envmap_bumpmap)
add_subdirectory (ext_fog_coord)
include_directories(
${OPENGL_INCLUDE_PATH}
${GLUT_INCLUDE_DIR}
${piglit_SOURCE_DIR}/tests/util
)
link_directories (
${piglit_SOURCE_DIR}/tests/util
)
link_libraries (
piglitutil
${OPENGL_gl_LIBRARY}
${OPENGL_glu_LIBRARY}
${GLUT_glut_LIBRARY}
${TIFF_LIBRARY}
)
add_executable (arb_shader_texture_lod-texgrad texgrad.c)
/*
* Copyright © 2009 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.
*
* Authors:
* Eric Anholt <eric@anholt.net>
*
*/
#include "piglit-util.h"
int piglit_window_mode = GLUT_RGB | GLUT_DOUBLE;
int piglit_width = 512;
int piglit_height = 256;
#define TEX_WIDTH 256
#define TEX_HEIGHT 256
static const float colors[][3] = {
{1.0, 0.0, 0.0},
{0.0, 1.0, 0.0},
{0.0, 0.0, 1.0},
{1.0, 1.0, 0.0},
{0.0, 1.0, 1.0},
{1.0, 0.0, 1.0},
{0.5, 0.0, 0.5},
{1.0, 1.0, 1.0},
};
static const char *sh_tex =
"uniform sampler2D tex;"
"void main()"
"{"
" gl_FragColor = texture2D(tex, gl_TexCoord[0].xy);"
"}";
static const char *sh_texgrad =
"uniform sampler2D tex;"
"void main()"
"{"
" gl_FragColor = texture2DGradARB(tex, gl_TexCoord[0].xy,"
" dFdx(gl_TexCoord[0].xy),"
" dFdy(gl_TexCoord[0].xy));"
"}";
static GLint prog_tex, prog_texgrad;
void piglit_init(int argc, char **argv)
{
GLuint tex, fb;
GLenum status;
int i, dim;
static GLuint fs_tex, fs_texgrad;
piglit_require_GLSL();
piglit_require_extension("GL_EXT_framebuffer_object");
piglit_require_extension("GL_ARB_shader_texture_lod");
fs_tex = piglit_compile_shader_text(GL_FRAGMENT_SHADER, sh_tex);
fs_texgrad = piglit_compile_shader_text(GL_FRAGMENT_SHADER, sh_texgrad);
prog_tex = piglit_link_simple_program(0, fs_tex);
prog_texgrad = piglit_link_simple_program(0, fs_texgrad);
glGenTextures(1, &tex);
glBindTexture(GL_TEXTURE_2D, tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
for (i = 0, dim = TEX_WIDTH; dim >0; i++, dim /= 2) {
glTexImage2D(GL_TEXTURE_2D, i, GL_RGBA,
dim, dim,
0,
GL_RGBA, GL_UNSIGNED_BYTE, NULL);
}
assert(glGetError() == 0);
glBindTexture(GL_TEXTURE_2D, 0);
glDisable(GL_TEXTURE_2D);
glGenFramebuffersEXT(1, &fb);
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fb);
for (i = 0, dim = TEX_WIDTH; dim >0; i++, dim /= 2) {
glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT,
GL_COLOR_ATTACHMENT0_EXT,
GL_TEXTURE_2D,
tex,
i);
status = glCheckFramebufferStatusEXT (GL_FRAMEBUFFER_EXT);
if (status != GL_FRAMEBUFFER_COMPLETE_EXT) {
fprintf(stderr, "FBO incomplete\n");
piglit_report_result(PIGLIT_SKIP);
}
glClearColor(colors[i][0],
colors[i][1],
colors[i][2],
0.0);
glClear(GL_COLOR_BUFFER_BIT);
assert(glGetError() == 0);
}
glDeleteFramebuffersEXT(1, &fb);
glBindTexture(GL_TEXTURE_2D, tex);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(45, 1, 0.1, 1000);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glTranslatef(-0.5, -0.5, -1.2);
glRotatef(68, 0, 1, 0);
glScalef(2000, 1, 1);
glEnable(GL_TEXTURE_2D);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
printf("Left: texture2D, Right: texture2DGradARB\n");
}
static void draw_quad()
{
glBegin(GL_QUADS);
glTexCoord2f(0, 0);
glVertex2f(0, 0);
glTexCoord2f(1, 0);
glVertex2f(1, 0);
glTexCoord2f(1, 1);
glVertex2f(1, 1);
glTexCoord2f(0, 1);
glVertex2f(0, 1);
glEnd();
}
enum piglit_result piglit_display(void)
{
GLboolean pass = GL_TRUE;
glViewport(0, 0, piglit_width, piglit_height);
glClearColor(0.5, 0.5, 0.5, 0.5);
glClear(GL_COLOR_BUFFER_BIT);
glViewport(0, 0, piglit_width/2, piglit_height);
piglit_UseProgram(prog_tex);
draw_quad();
glViewport(piglit_width/2, 0, piglit_width/2, piglit_height);
piglit_UseProgram(prog_texgrad);
draw_quad();
if (!piglit_probe_rect_halves_equal_rgba(0, 0, piglit_width, piglit_height))
pass = GL_FALSE;
glutSwapBuffers();
return pass ? PIGLIT_PASS : PIGLIT_FAIL;
}
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