Attachment 54735 Details for Bug 43360 – Piglit test case to verify textureCube support

Piglit test case to verify textureCube support

texture-cube-in-vertex-shader.c (text/x-csrc), 7.72 KB, created by Anuj Phogat on 2011-12-22 18:09:40 UTC

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Creator: Anuj Phogat

Created: 2011-12-22 18:09:40 UTC

Size: 7.72 KB

patch

obsolete

>/*
> * Copyright Â© 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 texture-cube-in-vertex-shader.c
> * Test to verify built in function textureCube() works as expected in vertex
> * shader
> *
> * author: Anuj Phogat
> */
>
>#include "piglit-util.h"
>
>int piglit_width = 400, piglit_height = 300;
>int piglit_window_mode = GLUT_RGB | GLUT_DOUBLE;
>
>static GLuint tex;
>static GLint prog;
>static GLint fs;
>static GLint vs;
>
>static GLfloat vertices[12] =  {150.0, 125.0, 0.0,
>				150.0, 175.0, 0.0,
>				100.0, 125.0, 0.0,
>				100.0, 175.0, 0.0};
>
>static GLuint elements[4] = {0, 1, 2, 3};
>
>static const char *vertShaderText =
>	"uniform samplerCube depthcubeTex;\n"
>	"varying vec4 depthcolor;\n"
>	"void main()\n"
>	"{\n"
>	" gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;\n"
>	" depthcolor  = textureCube(depthcubeTex, gl_MultiTexCoord0.xyz);\n"
>	"}\n";
>
>static const char *fragShaderText =
>	"varying vec4 depthcolor;\n"
>	"void main()\n"
>	"{\n"
>	" gl_FragColor = vec4(depthcolor.xyz, 1.0);\n"
>	"}\n";
>
>static void
>shaderSetup(void)
>{
>	vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vertShaderText);
>	fs = piglit_compile_shader_text(GL_FRAGMENT_SHADER, fragShaderText);
>	prog = piglit_link_simple_program(vs, fs);
>	glUseProgram(prog);
>	glVertexPointer(3, GL_FLOAT, 0, vertices);
>	glEnableClientState(GL_VERTEX_ARRAY);
>	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
>}
>
>
>static void
>loadTex(void)
>{
>	#define height 2
>	#define width 2
>	int i, j;
>
>	GLfloat texDepthDataPosX[width][height][4];
>	GLfloat texDepthDataNegX[width][height][4];
>	GLfloat texDepthDataPosY[width][height][4];
>	GLfloat texDepthDataNegY[width][height][4];
>	GLfloat texDepthDataPosZ[width][height][4];
>	GLfloat texDepthDataNegZ[width][height][4];
>
>	/* Set the cubemap texture data */
>	for (i=0; i < height; ++i) {
>		for (j = 0 ; j < width; ++j) {
>			texDepthDataPosX[i][j][0] = 0.0;
>			texDepthDataPosX[i][j][1] = 0.0;
>			texDepthDataPosX[i][j][2] = 0.0;
>			texDepthDataPosX[i][j][3] = 1.0;
>
>			texDepthDataNegX[i][j][0] = 0.2;
>			texDepthDataNegX[i][j][1] = 0.2;
>			texDepthDataNegX[i][j][2] = 0.0;
>			texDepthDataNegX[i][j][3] = 1.0;
>
>			texDepthDataPosY[i][j][0] = 0.00;
>			texDepthDataPosY[i][j][1] = 0.35;
>			texDepthDataPosY[i][j][2] = 0.35;
>			texDepthDataPosY[i][j][3] = 1.0;
>
>			texDepthDataNegY[i][j][0] = 0.50;
>			texDepthDataNegY[i][j][1] = 0.00;
>			texDepthDataNegY[i][j][2] = 0.50;
>			texDepthDataNegY[i][j][3] = 1.00;
>
>			texDepthDataPosZ[i][j][0] = 0.75;
>			texDepthDataPosZ[i][j][1] = 0.75;
>			texDepthDataPosZ[i][j][2] = 0.75;
>			texDepthDataPosZ[i][j][3] = 1.00;
>
>			texDepthDataNegZ[i][j][0] = 1.0;
>			texDepthDataNegZ[i][j][1] = 0.0;
>			texDepthDataNegZ[i][j][2] = 0.0;
>			texDepthDataNegZ[i][j][3] = 1.0;
>		}
>	}
>
>	/* Render the cube depth texture using LUMINANCE */
>	glGenTextures(1, &tex);
>	glActiveTexture(GL_TEXTURE0);
>	glBindTexture(GL_TEXTURE_CUBE_MAP, tex);
>
>	glTexParameteri(GL_TEXTURE_CUBE_MAP,
>			GL_GENERATE_MIPMAP,
>			GL_FALSE);
>	glTexParameteri(GL_TEXTURE_CUBE_MAP,
>			GL_TEXTURE_MIN_FILTER,
>			GL_NEAREST);
>	glTexParameteri(GL_TEXTURE_CUBE_MAP,
>			GL_TEXTURE_MAG_FILTER,
>			GL_NEAREST);
>	glTexParameteri(GL_TEXTURE_CUBE_MAP,
>			GL_TEXTURE_WRAP_S,
>			GL_CLAMP_TO_EDGE);
>	glTexParameteri(GL_TEXTURE_CUBE_MAP,
>			GL_TEXTURE_WRAP_T,
>			GL_CLAMP_TO_EDGE);
>	glTexParameteri(GL_TEXTURE_CUBE_MAP,
>			GL_TEXTURE_WRAP_R,
>			GL_CLAMP_TO_EDGE);
>	glTexParameteri(GL_TEXTURE_CUBE_MAP,
>			GL_DEPTH_TEXTURE_MODE,
>			GL_LUMINANCE);
>	glTexParameteri(GL_TEXTURE_2D,
>			GL_TEXTURE_COMPARE_MODE,
>			GL_NONE);
>
>	/* Set a different color texture to each face of cubemap */
>	glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X, 0, GL_RGBA,
>		     width, height, 0, GL_RGBA, GL_FLOAT,
>		     texDepthDataPosX);
>	glTexImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_X, 0, GL_RGBA,
>		     width, height, 0, GL_RGBA, GL_FLOAT,
>		     texDepthDataNegX);
>	glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_Y, 0, GL_RGBA,
>		     width, height, 0, GL_RGBA, GL_FLOAT,
>		     texDepthDataPosY);
>	glTexImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, 0, GL_RGBA,
>		     width, height, 0, GL_RGBA, GL_FLOAT,
>		     texDepthDataNegY);
>	glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_Z, 0, GL_RGBA,
>		     width, height, 0, GL_RGBA, GL_FLOAT,
>		     texDepthDataPosZ);
>	glTexImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, 0, GL_RGBA,
>		     width, height, 0, GL_RGBA, GL_FLOAT,
>		     texDepthDataNegZ);
>
>	#undef height
>	#undef width
>}
>
>void
>piglit_init(int argc, char **argv)
>{
>//	piglit_require_gl_version(30);
>	loadTex();
>	glMatrixMode(GL_PROJECTION);
>	glPushMatrix();
>	glLoadIdentity();
>	glOrtho(0, piglit_width, 0, piglit_height, -1, 1);
>	glMatrixMode(GL_MODELVIEW);
>	glPushMatrix();
>	glLoadIdentity();
>	glClearColor(0.1, 0.1, 0.1, 1.0);
>	shaderSetup();
>}
>
>enum piglit_result
>piglit_display(void)
>{
>	GLint loc1;
>	GLboolean pass = GL_TRUE;
>
>	GLfloat ColorPosX[3] = {0.0, 0.0, 0.0};
>	GLfloat ColorNegX[3] = {0.2, 0.2, 0.0};
>	GLfloat ColorPosY[3] = {0.0, 0.35, 0.35};
>	GLfloat ColorNegY[3] = {0.5, 0.0, 0.5};
>	GLfloat ColorPosZ[3] = {0.75, 0.75, 0.75};
>	GLfloat ColorNegZ[3] = {1.0, 0.0, 0.0};
>
>	loc1 = glGetUniformLocation(prog, "depthcubeTex");
>	glClear(GL_COLOR_BUFFER_BIT);
>	glMatrixMode(GL_MODELVIEW);
>
>	/* Apply each face of cubemap as a texture to a polygon */
>	glUniform1i(loc1, 0);
>	glTexCoordPointer(3, GL_FLOAT, 0, cube_face_texcoords[0]);
>	glDrawElements(GL_TRIANGLE_STRIP, 4, GL_UNSIGNED_INT, elements);
>
>	glPushMatrix();
>	glTranslatef(75.0, 0.0, 0.0);
>	glTexCoordPointer(3, GL_FLOAT, 0, cube_face_texcoords[3]);
>	glDrawElements(GL_TRIANGLE_STRIP, 4, GL_UNSIGNED_INT, elements);
>
>	glTranslatef(75.0, 0.0, 0.0);
>	glTexCoordPointer(3, GL_FLOAT, 0, cube_face_texcoords[1]);
>	glDrawElements(GL_TRIANGLE_STRIP, 4, GL_UNSIGNED_INT, elements);
>	glPopMatrix();
>
>	glPushMatrix();
>	glTranslatef(0.0, 75.0, 0.0);
>	glTexCoordPointer(3, GL_FLOAT, 0, cube_face_texcoords[4]);
>	glDrawElements(GL_TRIANGLE_STRIP, 4, GL_UNSIGNED_INT, elements);
>
>	glTranslatef(75.0, 0.0, 0.0);
>	glTexCoordPointer(3, GL_FLOAT, 0, cube_face_texcoords[2]);
>	glDrawElements(GL_TRIANGLE_STRIP, 4, GL_UNSIGNED_INT, elements);
>
>	glTranslatef(75.0, 0.0, 0.0);
>	glTexCoordPointer(3, GL_FLOAT, 0, cube_face_texcoords[5]);
>	glDrawElements(GL_TRIANGLE_STRIP, 4, GL_UNSIGNED_INT, elements);
>	glPopMatrix();
>
>	glFinish();
>
>	/* Test the pixel color of polygons against the expected output */
>	pass = piglit_probe_pixel_rgb(110, 135, ColorPosX);
>	pass = pass && piglit_probe_pixel_rgb(185, 135, ColorNegX);
>	pass = pass && piglit_probe_pixel_rgb(260, 135, ColorPosY);
>	pass = pass && piglit_probe_pixel_rgb(110, 210, ColorNegY);
>	pass = pass && piglit_probe_pixel_rgb(185, 210, ColorPosZ);
>	pass = pass && piglit_probe_pixel_rgb(260, 210, ColorNegZ);
>
>	piglit_check_gl_error(GL_NO_ERROR, PIGLIT_FAIL);
>	piglit_present_results();
>//	piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
>	return pass ? PIGLIT_PASS : PIGLIT_FAIL;
>}

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Attachments on bug 43360: 53964 | 54735

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