/* * Copyright (c) 2011 VMware, Inc. * * 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 fbo-storage-formats.c * * Tests if glRenderbufferStorage() affects framebuffer completeness. * * Author: * Brian Paul * Marek Olšák */ #include "piglit-util.h" #include "piglit-framework.h" int piglit_width = 100; int piglit_height = 100; int piglit_window_mode = GLUT_RGB; static const char *TestName = "fbo-storage-formats"; static void check_error(int line) { GLenum err = glGetError(); if (err) { printf("%s: Unexpected error 0x%x at line %d\n", TestName, err, line); piglit_report_result(PIGLIT_FAIL); } } #define EXT_packed_depth_stencil 1 #define ARB_framebuffer_object 2 #define ARB_texture_rg 3 #define MAX_EXT 4 static GLboolean HaveExtension[MAX_EXT]; struct format_info { GLenum format; GLuint extension; }; static const struct format_info Formats[] = { { GL_RGB, 0 }, { GL_R3_G3_B2, 0 }, { GL_RGB4, 0 }, { GL_RGB5, 0 }, { GL_RGB8, 0 }, { GL_RGB10, 0 }, { GL_RGB12, 0 }, { GL_RGB16, 0 }, { GL_RGBA, 0 }, { GL_RGBA2, 0 }, { GL_RGBA4, 0 }, { GL_RGB5_A1, 0 }, { GL_RGBA8, 0 }, { GL_RGB10_A2, 0 }, { GL_RGBA12, 0 }, { GL_RGBA16, 0 }, { GL_STENCIL_INDEX, 0 }, { GL_STENCIL_INDEX1_EXT, 0 }, { GL_STENCIL_INDEX4_EXT, 0 }, { GL_STENCIL_INDEX8_EXT, 0 }, { GL_STENCIL_INDEX16_EXT, 0 }, { GL_DEPTH_COMPONENT, 0 }, { GL_DEPTH_COMPONENT16, 0 }, { GL_DEPTH_COMPONENT24, 0 }, { GL_DEPTH_COMPONENT32, 0 }, /* GL_ARB_framebuffer_object additions */ { GL_ALPHA, ARB_framebuffer_object }, { GL_ALPHA4, ARB_framebuffer_object }, { GL_ALPHA8, ARB_framebuffer_object }, { GL_ALPHA12, ARB_framebuffer_object }, { GL_ALPHA16, ARB_framebuffer_object }, { GL_LUMINANCE_ALPHA, ARB_framebuffer_object }, { GL_LUMINANCE, ARB_framebuffer_object }, { GL_INTENSITY, ARB_framebuffer_object }, /* GL_ARB_texture_rg */ { GL_RED, ARB_texture_rg }, { GL_R8, ARB_texture_rg }, { GL_R16, ARB_texture_rg }, { GL_RG, ARB_texture_rg }, { GL_RG8, ARB_texture_rg }, { GL_RG16, ARB_texture_rg }, #if 0 /* XXX also depend on texture_float, texture_integer extensions */ { GL_R16F, ARB_texture_rg }, { GL_R32F, ARB_texture_rg }, { GL_RG16F, ARB_texture_rg }, { GL_RG32F, ARB_texture_rg }, { GL_R8I, ARB_texture_rg }, { GL_R8UI, ARB_texture_rg }, { GL_R16I, ARB_texture_rg }, { GL_R16UI, ARB_texture_rg }, { GL_R32I, ARB_texture_rg }, { GL_R32UI, ARB_texture_rg }, { GL_RG8I, ARB_texture_rg }, { GL_RG8UI, ARB_texture_rg }, { GL_RG16I, ARB_texture_rg }, { GL_RG16UI, ARB_texture_rg }, { GL_RG32I, ARB_texture_rg }, { GL_RG32UI, ARB_texture_rg }, #endif /* GL_EXT_packed_depth_stencil */ { GL_DEPTH_STENCIL_EXT, EXT_packed_depth_stencil }, { GL_DEPTH24_STENCIL8_EXT, EXT_packed_depth_stencil } }; #define ELEMENTS(A) (sizeof(A) / sizeof(A[0])) static enum piglit_result test(void) { GLuint fbo, rb; int i; int incomplete = -1, complete = -1; /* clear out any errors */ while (glGetError()) ; /* find a format which is incomplete */ for (i = 0; i < ELEMENTS(Formats); i++) { if (!HaveExtension[Formats[i].extension]) continue; glGenFramebuffersEXT(1, &fbo); glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fbo); check_error(__LINE__); glGenRenderbuffersEXT(1, &rb); check_error(__LINE__); glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, rb); glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER_EXT, rb); check_error(__LINE__); glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, Formats[i].format, piglit_width, piglit_height); if (glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT) == GL_FRAMEBUFFER_COMPLETE_EXT) complete = i; else incomplete = i; glDeleteFramebuffersEXT(1, &fbo); glDeleteRenderbuffersEXT(1, &rb); if (incomplete != -1 && complete != -1) break; } if (complete == -1) { printf("Found no renderbuffer format which is framebuffer complete.\n"); return PIGLIT_FAIL; } if (incomplete == -1) return PIGLIT_PASS; glGenFramebuffersEXT(1, &fbo); glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fbo); check_error(__LINE__); glGenRenderbuffersEXT(1, &rb); check_error(__LINE__); glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, rb); glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER_EXT, rb); check_error(__LINE__); glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, Formats[complete].format, piglit_width, piglit_height); if (glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT) != GL_FRAMEBUFFER_COMPLETE_EXT) { printf("The format which was previously framebuffer complete is now incomplete.\n"); return PIGLIT_FAIL; } glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, Formats[incomplete].format, piglit_width, piglit_height); if (glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT) == GL_FRAMEBUFFER_COMPLETE_EXT) { printf("The format which was previously framebuffer incomplete is now complete.\n"); return PIGLIT_FAIL; } glDeleteFramebuffersEXT(1, &fbo); glDeleteRenderbuffersEXT(1, &rb); return PIGLIT_PASS; } enum piglit_result piglit_display(void) { return test(); } void piglit_init(int argc, char**argv) { piglit_require_extension("GL_EXT_framebuffer_object"); HaveExtension[0] = GL_TRUE; HaveExtension[EXT_packed_depth_stencil] = glutExtensionSupported("GL_EXT_packed_depth_stencil"); HaveExtension[ARB_framebuffer_object] = glutExtensionSupported("GL_ARB_framebuffer_object"); HaveExtension[ARB_texture_rg] = glutExtensionSupported("GL_ARB_texture_rg"); piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE); }