diff options
author | Brian Paul <[email protected]> | 2008-08-16 09:54:07 -0600 |
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committer | Brian Paul <[email protected]> | 2008-08-16 09:54:07 -0600 |
commit | 35479fd4b47b5488bab2b6230909e8716b858d49 (patch) | |
tree | 719eaf51dbcd2cdd2fad91d6ab692aa3ed8a0985 /progs/glsl | |
parent | 7970b2a908822ad009d29312e69be9eb2b7a5dd2 (diff) |
fix convolutions test to consistanty use the ARB shader extension functions
Was using a mix of the ARB functions and the OpenGL 2.0 shader functions.
Diffstat (limited to 'progs/glsl')
-rw-r--r-- | progs/glsl/convolutions.c | 41 |
1 files changed, 28 insertions, 13 deletions
diff --git a/progs/glsl/convolutions.c b/progs/glsl/convolutions.c index 9b9ee532453..13c7eab0ea9 100644 --- a/progs/glsl/convolutions.c +++ b/progs/glsl/convolutions.c @@ -1,3 +1,10 @@ +/** + * Convolution with GLSL. + * Note: uses GL_ARB_shader_objects, GL_ARB_vertex_shader, GL_ARB_fragment_shader, + * not the OpenGL 2.0 shader API. + * Author: Zack Rusin + */ + #define GL_GLEXT_PROTOTYPES #include "readtex.h" @@ -54,15 +61,15 @@ static void loadAndCompileShader(GLuint shader, const char *text) { GLint stat; - glShaderSource(shader, 1, (const GLchar **) &text, NULL); + glShaderSourceARB(shader, 1, (const GLchar **) &text, NULL); - glCompileShader(shader); + glCompileShaderARB(shader); - glGetShaderiv(shader, GL_COMPILE_STATUS, &stat); + glGetObjectParameterivARB(shader, GL_COMPILE_STATUS, &stat); if (!stat) { GLchar log[1000]; GLsizei len; - glGetShaderInfoLog(shader, 1000, &len, log); + glGetInfoLogARB(shader, 1000, &len, log); fprintf(stderr, "Problem compiling shader: %s\n", log); exit(1); } @@ -98,11 +105,11 @@ static void checkLink(GLuint prog) { GLint stat; - glGetProgramiv(prog, GL_LINK_STATUS, &stat); + glGetObjectParameterivARB(prog, GL_LINK_STATUS, &stat); if (!stat) { GLchar log[1000]; GLsizei len; - glGetProgramInfoLog(prog, 1000, &len, log); + glGetInfoLogARB(prog, 1000, &len, log); fprintf(stderr, "Linker error:\n%s\n", log); } else { @@ -193,12 +200,12 @@ static void setupConvolution() } loc = glGetUniformLocationARB(program, "KernelValue"); - glUniform4fv(loc, 9, vecKer); + glUniform4fvARB(loc, 9, vecKer); loc = glGetUniformLocationARB(program, "ScaleFactor"); - glUniform4f(loc, scale, scale, scale, scale); + glUniform4fARB(loc, scale, scale, scale, scale); loc = glGetUniformLocationARB(program, "BaseColor"); - glUniform4f(loc, baseColor[0], baseColor[1], - baseColor[2], baseColor[3]); + glUniform4fARB(loc, baseColor[0], baseColor[1], + baseColor[2], baseColor[3]); free(vecKer); free(kernel); @@ -222,14 +229,16 @@ static void createProgram(const char *vertProgFile, glAttachShader(program, fragShader); } - glLinkProgram(program); + glLinkProgramARB(program); checkLink(program); - glUseProgram(program); + glUseProgramObjectARB(program); + /* assert(glIsProgram(program)); assert(glIsShader(fragShader)); assert(glIsShader(vertShader)); + */ checkError(__LINE__); {/*texture*/ @@ -247,7 +256,7 @@ static void createProgram(const char *vertProgFile, 0.0 , -1.0 / texture.height, -1.0 / texture.width, -1.0 / texture.height }; GLuint offsetLoc = glGetUniformLocationARB(program, "Offset"); - glUniform2fv(offsetLoc, 9, offsets); + glUniform2fvARB(offsetLoc, 9, offsets); } setupConvolution(); @@ -316,6 +325,12 @@ static void menuInit() static void init() { + if (!glutExtensionSupported("GL_ARB_shader_objects") || + !glutExtensionSupported("GL_ARB_vertex_shader") || + !glutExtensionSupported("GL_ARB_fragment_shader")) { + fprintf(stderr, "Sorry, this program requires GL_ARB_shader_objects, GL_ARB_vertex_shader, and GL_ARB_fragment_shader\n"); + exit(1); + } fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); |