From 85ef9930f56bf15181f9a0b238f03d55303cf411 Mon Sep 17 00:00:00 2001 From: marha Date: Mon, 22 Nov 2010 19:42:40 +0000 Subject: Updated to mesalib 7.9 --- mesalib/progs/util/shaderutil.c | 323 ---------------------------------------- 1 file changed, 323 deletions(-) delete mode 100644 mesalib/progs/util/shaderutil.c (limited to 'mesalib/progs/util/shaderutil.c') diff --git a/mesalib/progs/util/shaderutil.c b/mesalib/progs/util/shaderutil.c deleted file mode 100644 index 2f44c388d..000000000 --- a/mesalib/progs/util/shaderutil.c +++ /dev/null @@ -1,323 +0,0 @@ -/** - * Utilities for OpenGL shading language - * - * Brian Paul - * 9 April 2008 - */ - - -#include -#include -#include -#include -#include -#include -#include "shaderutil.h" - -/** time to compile previous shader */ -static GLdouble CompileTime = 0.0; - -/** time to linke previous program */ -static GLdouble LinkTime = 0.0; - - -GLboolean -ShadersSupported(void) -{ - const char *version = (const char *) glGetString(GL_VERSION); - - /* NVIDIA binary drivers will return "3.0.0", and they clearly support - * shaders. - */ - if (version[0] >= '2' && version[1] == '.') { - return GL_TRUE; - } - else if (glutExtensionSupported("GL_ARB_vertex_shader") - && glutExtensionSupported("GL_ARB_fragment_shader") - && glutExtensionSupported("GL_ARB_shader_objects")) { - fprintf(stderr, "Warning: Trying ARB GLSL instead of OpenGL 2.x. This may not work.\n"); - return GL_TRUE; - } - fprintf(stderr, "Sorry, GLSL not supported with this OpenGL.\n"); - return GL_FALSE; -} - - -GLuint -CompileShaderText(GLenum shaderType, const char *text) -{ - GLuint shader; - GLint stat; - GLdouble t0, t1; - - shader = glCreateShader(shaderType); - glShaderSource(shader, 1, (const GLchar **) &text, NULL); - - t0 = glutGet(GLUT_ELAPSED_TIME) * 0.001; - glCompileShader(shader); - t1 = glutGet(GLUT_ELAPSED_TIME) * 0.001; - - CompileTime = t1 - t0; - - glGetShaderiv(shader, GL_COMPILE_STATUS, &stat); - if (!stat) { - GLchar log[1000]; - GLsizei len; - glGetShaderInfoLog(shader, 1000, &len, log); - fprintf(stderr, "Error: problem compiling shader: %s\n", log); - exit(1); - } - else { - /*printf("Shader compiled OK\n");*/ - } - return shader; -} - - -/** - * Read a shader from a file. - */ -GLuint -CompileShaderFile(GLenum shaderType, const char *filename) -{ - const int max = 100*1000; - int n; - char *buffer = (char*) malloc(max); - GLuint shader; - FILE *f; - - f = fopen(filename, "r"); - if (!f) { - fprintf(stderr, "Unable to open shader file %s\n", filename); - free(buffer); - return 0; - } - - n = fread(buffer, 1, max, f); - /*printf("read %d bytes from shader file %s\n", n, filename);*/ - if (n > 0) { - buffer[n] = 0; - shader = CompileShaderText(shaderType, buffer); - } - else { - fclose(f); - free(buffer); - return 0; - } - - fclose(f); - free(buffer); - - return shader; -} - - -GLuint -LinkShaders(GLuint vertShader, GLuint fragShader) -{ - GLuint program = glCreateProgram(); - GLdouble t0, t1; - - assert(vertShader || fragShader); - - if (fragShader) - glAttachShader(program, fragShader); - if (vertShader) - glAttachShader(program, vertShader); - - t0 = glutGet(GLUT_ELAPSED_TIME) * 0.001; - glLinkProgram(program); - t1 = glutGet(GLUT_ELAPSED_TIME) * 0.001; - - LinkTime = t1 - t0; - - /* check link */ - { - GLint stat; - glGetProgramiv(program, GL_LINK_STATUS, &stat); - if (!stat) { - GLchar log[1000]; - GLsizei len; - glGetProgramInfoLog(program, 1000, &len, log); - fprintf(stderr, "Shader link error:\n%s\n", log); - return 0; - } - } - - return program; -} - - -GLboolean -ValidateShaderProgram(GLuint program) -{ - GLint stat; - glValidateProgramARB(program); - glGetProgramiv(program, GL_VALIDATE_STATUS, &stat); - - if (!stat) { - GLchar log[1000]; - GLsizei len; - glGetProgramInfoLog(program, 1000, &len, log); - fprintf(stderr, "Program validation error:\n%s\n", log); - return 0; - } - - return (GLboolean) stat; -} - - -GLdouble -GetShaderCompileTime(void) -{ - return CompileTime; -} - - -GLdouble -GetShaderLinkTime(void) -{ - return LinkTime; -} - - -void -SetUniformValues(GLuint program, struct uniform_info uniforms[]) -{ - GLuint i; - - for (i = 0; uniforms[i].name; i++) { - uniforms[i].location - = glGetUniformLocation(program, uniforms[i].name); - - switch (uniforms[i].type) { - case GL_INT: - case GL_SAMPLER_1D: - case GL_SAMPLER_2D: - case GL_SAMPLER_3D: - case GL_SAMPLER_CUBE: - case GL_SAMPLER_2D_RECT_ARB: - assert(uniforms[i].value[0] >= 0.0F); - glUniform1i(uniforms[i].location, - (GLint) uniforms[i].value[0]); - break; - case GL_FLOAT: - glUniform1fv(uniforms[i].location, 1, uniforms[i].value); - break; - case GL_FLOAT_VEC2: - glUniform2fv(uniforms[i].location, 1, uniforms[i].value); - break; - case GL_FLOAT_VEC3: - glUniform3fv(uniforms[i].location, 1, uniforms[i].value); - break; - case GL_FLOAT_VEC4: - glUniform4fv(uniforms[i].location, 1, uniforms[i].value); - break; - default: - if (strncmp(uniforms[i].name, "gl_", 3) == 0) { - /* built-in uniform: ignore */ - } - else { - fprintf(stderr, - "Unexpected uniform data type in SetUniformValues\n"); - abort(); - } - } - } -} - - -/** Get list of uniforms used in the program */ -GLuint -GetUniforms(GLuint program, struct uniform_info uniforms[]) -{ - GLint n, max, i; - - glGetProgramiv(program, GL_ACTIVE_UNIFORMS, &n); - glGetProgramiv(program, GL_ACTIVE_UNIFORM_MAX_LENGTH, &max); - - for (i = 0; i < n; i++) { - GLint size, len; - GLenum type; - char name[100]; - - glGetActiveUniform(program, i, 100, &len, &size, &type, name); - - uniforms[i].name = strdup(name); - uniforms[i].size = size; - uniforms[i].type = type; - uniforms[i].location = glGetUniformLocation(program, name); - } - - uniforms[i].name = NULL; /* end of list */ - - return n; -} - - -void -PrintUniforms(const struct uniform_info uniforms[]) -{ - GLint i; - - printf("Uniforms:\n"); - - for (i = 0; uniforms[i].name; i++) { - printf(" %d: %s size=%d type=0x%x loc=%d value=%g, %g, %g, %g\n", - i, - uniforms[i].name, - uniforms[i].size, - uniforms[i].type, - uniforms[i].location, - uniforms[i].value[0], - uniforms[i].value[1], - uniforms[i].value[2], - uniforms[i].value[3]); - } -} - - -/** Get list of attribs used in the program */ -GLuint -GetAttribs(GLuint program, struct attrib_info attribs[]) -{ - GLint n, max, i; - - glGetProgramiv(program, GL_ACTIVE_ATTRIBUTES, &n); - glGetProgramiv(program, GL_ACTIVE_ATTRIBUTE_MAX_LENGTH, &max); - - for (i = 0; i < n; i++) { - GLint size, len; - GLenum type; - char name[100]; - - glGetActiveAttrib(program, i, 100, &len, &size, &type, name); - - attribs[i].name = strdup(name); - attribs[i].size = size; - attribs[i].type = type; - attribs[i].location = glGetAttribLocation(program, name); - } - - attribs[i].name = NULL; /* end of list */ - - return n; -} - - -void -PrintAttribs(const struct attrib_info attribs[]) -{ - GLint i; - - printf("Attribs:\n"); - - for (i = 0; attribs[i].name; i++) { - printf(" %d: %s size=%d type=0x%x loc=%d\n", - i, - attribs[i].name, - attribs[i].size, - attribs[i].type, - attribs[i].location); - } -} -- cgit v1.2.3