/* * Copyright (c) 2004 Brian Paul * 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. */ /* * Test packed pixel formats for textures. Try a bunch of combinations * of various internal texture formats with combinations of packed user * formats/types. Also test glPixelStore byte swapping. * * Based on mesa-demos/tests/packedpixels.c. * Brian Paul * June 2011 */ #include #include #include #include #include "piglit-util-gl.h" PIGLIT_GL_TEST_CONFIG_BEGIN config.supports_gl_compat_version = 10; config.window_width = 700; config.window_height = 620; config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE; config.khr_no_error_support = PIGLIT_NO_ERRORS; PIGLIT_GL_TEST_CONFIG_END struct pixel_format { GLenum format; GLenum type; GLint bytes; GLuint redTexel, greenTexel; /* with approx 51% alpha, when applicable */ }; static const struct pixel_format Formats[] = { { GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, 4, 0xff000080, 0x00ff0080 }, { GL_RGBA, GL_UNSIGNED_INT_8_8_8_8_REV, 4, 0x800000ff, 0x8000ff00 }, { GL_RGBA, GL_UNSIGNED_INT_10_10_10_2, 4, 0xffc00002, 0x3ff002 }, { GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, 4, 0xc00003ff, 0xc00ffc00 }, { GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, 2, 0xf008, 0x0f08 }, { GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4_REV, 2, 0x800f, 0x80f0 }, { GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, 2, 0xf801, 0x7c1 }, { GL_RGBA, GL_UNSIGNED_SHORT_1_5_5_5_REV, 2, 0x801f, 0x83e0 }, { GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, 4, 0x0000ff80, 0x00ff0080 }, { GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, 4, 0x80ff0000, 0x8000ff00 }, { GL_BGRA, GL_UNSIGNED_SHORT_4_4_4_4, 2, 0x00f8, 0x0f08 }, { GL_BGRA, GL_UNSIGNED_SHORT_4_4_4_4_REV, 2, 0x8f00, 0x80f0 }, { GL_BGRA, GL_UNSIGNED_SHORT_5_5_5_1, 2, 0x3f, 0x7c1 }, { GL_BGRA, GL_UNSIGNED_SHORT_1_5_5_5_REV, 2, 0xfc00, 0x83e0 }, { GL_RGB, GL_UNSIGNED_SHORT_5_6_5, 2, 0xf800, 0x7e0 }, { GL_RGB, GL_UNSIGNED_SHORT_5_6_5_REV, 2, 0x1f, 0x7e0 }, { GL_RGB, GL_UNSIGNED_BYTE_3_3_2, 1, 0xe0, 0x1c }, { GL_RGB, GL_UNSIGNED_BYTE_2_3_3_REV, 1, 0x7, 0x38 } }; #define NUM_FORMATS (sizeof(Formats) / sizeof(Formats[0])) static const GLenum IntFormats[] = { GL_RGBA, GL_RGBA2, GL_RGBA4, GL_RGB5_A1, GL_RGBA8, GL_RGBA12, GL_RGBA16, GL_RGB10_A2, GL_RGB, GL_R3_G3_B2, GL_RGB4, GL_RGB5, GL_RGB8, GL_RGB10, GL_RGB12, GL_RGB16, }; #define NUM_INT_FORMATS (sizeof(IntFormats) / sizeof(IntFormats[0])) static void MakeTexture(GLuint dims, const struct pixel_format *format, GLenum intFormat, GLboolean swap) { GLubyte texBuffer[1000]; int i; assert(dims == 2 || dims == 3); glPixelStorei(GL_UNPACK_SWAP_BYTES, swap); if (format->bytes == 1) { for (i = 0; i < 8; i++) { texBuffer[i] = format->redTexel; } for (i = 8; i < 16; i++) { texBuffer[i] = format->greenTexel; } } else if (format->bytes == 2) { GLushort *us = (GLushort *) texBuffer; for (i = 0; i < 8; i++) { us[i] = format->redTexel; } for (i = 8; i < 16; i++) { us[i] = format->greenTexel; } if (swap) { for (i = 0; i < 16; i++) us[i] = (us[i] << 8) | (us[i] >> 8); } } else if (format->bytes == 4) { GLuint *ui = (GLuint *) texBuffer; for (i = 0; i < 8; i++) { ui[i] = format->redTexel; } for (i = 8; i < 16; i++) { ui[i] = format->greenTexel; } if (swap) { for (i = 0; i < 16; i++) { GLuint b = ui[i]; ui[i] = (b >> 24) | ((b >> 8) & 0xff00) | ((b << 8) & 0xff0000) | ((b << 24) & 0xff000000); } } } else { abort(); } if (dims == 3) { /* 4 x 4 x 4 texture, undefined data */ glTexImage3D(GL_TEXTURE_3D, 0, intFormat, 4, 4, 4, 0, format->format, format->type, NULL); /* fill in Z=1 and Z=2 slices with the real texture data */ glTexSubImage3D(GL_TEXTURE_3D, 0, 0, 0, 1, /* offset */ 4, 4, 1, /* size */ format->format, format->type, texBuffer); glTexSubImage3D(GL_TEXTURE_3D, 0, 0, 0, 2, /* offset */ 4, 4, 1, /* size */ format->format, format->type, texBuffer); } else { glTexImage2D(GL_TEXTURE_2D, 0, intFormat, 4, 4, 0, format->format, format->type, texBuffer); } if (0) { GLint r, g, b, a, l, i; glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_RED_SIZE, &r); glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_GREEN_SIZE, &g); glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_BLUE_SIZE, &b); glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_ALPHA_SIZE, &a); glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_LUMINANCE_SIZE, &l); glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_INTENSITY_SIZE, &i); printf("IntFormat: 0x%x R %d G %d B %d A %d L %d I %d\n", intFormat, r, g, b, a, l, i); glGetError(); } } /** * Test a particular internal texture format. 2D or 3D texture. */ static GLboolean Test(GLuint intFmt, GLuint dims) { static const float red[4] = {1, 0, 0, 1}; static const float green[4] = {0, 1, 0, 1}; int w = 4, h = 4; int i, swap; GLboolean pass = GL_TRUE; piglit_ortho_projection(piglit_width, piglit_height, false); assert(NUM_FORMATS * 5 < piglit_height); glClear(GL_COLOR_BUFFER_BIT); if (dims == 3) glEnable(GL_TEXTURE_3D); else glEnable(GL_TEXTURE_2D); /* Loop over byteswapping */ for (swap = 0; swap < 2; swap++) { /* Loop over texture formats */ for (i = 0; i < NUM_FORMATS; i++) { int x = 5 * swap; int y = 5 * i; MakeTexture(dims, Formats + i, IntFormats[intFmt], swap); if (glGetError()) { printf("Unexpected GL Error for %s\n", piglit_get_gl_enum_name( IntFormats[intFmt])); return GL_FALSE; } glBegin(GL_POLYGON); glTexCoord3f(0, 0, 0.5); glVertex2f(x + 0, y + 0); glTexCoord3f(1, 0, 0.5); glVertex2f(x + w, y + 0); glTexCoord3f(1, 1, 0.5); glVertex2f(x + w, y + h); glTexCoord3f(0, 1, 0.5); glVertex2f(x + 0, y + h); glEnd(); } } if (dims == 3) glDisable(GL_TEXTURE_3D); else glDisable(GL_TEXTURE_2D); /* Loop over byteswapping */ for (swap = 0; swap < 2; swap++) { /* Loop over texture formats */ for (i = 0; i < NUM_FORMATS; i++) { int x = 5 * swap; int y = 5 * i; char *name; asprintf(&name, "%s/%s", piglit_get_gl_enum_name(Formats[i].format), piglit_get_gl_enum_name(Formats[i].type)); /* test rendering */ if (!piglit_probe_rect_rgb(x, y, w, 2, red)) { printf("Failure for format=%s, swap=%u, " "textureDims=%u\n", name, swap, dims); pass = GL_FALSE; } if (!piglit_probe_rect_rgb(x, y + 2, w, 2, green)) { printf("Failure for format=%s, swap=%u, " "textureDims=%u\n", name, swap, dims); pass = GL_FALSE; } free(name); } } piglit_present_results(); return pass; } enum piglit_result piglit_display(void) { GLboolean pass = 1; int i; /* 2D texture */ for (i = 0; i < NUM_INT_FORMATS; i++) { pass = Test(i, 2) && pass; if (!pass && !piglit_automatic) break; } /* 3D texture */ for (i = 0; i < NUM_INT_FORMATS; i++) { pass = Test(i, 3) && pass; if (!pass && !piglit_automatic) break; } return pass ? PIGLIT_PASS : PIGLIT_FAIL; } void piglit_init(int argc, char **argv) { if (0) { printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); } glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); }