/* * (C) Copyright IBM Corporation 2002, 2004 * All Rights Reserved. * * 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 * on the rights to use, copy, modify, merge, publish, distribute, sub * license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL * VA LINUX SYSTEM, IBM AND/OR THEIR SUPPLIERS 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 utils.c * Utility functions for DRI drivers. * * \author Ian Romanick */ #include #include #include "mtypes.h" #include "extensions.h" #include "utils.h" #include "dispatch.h" int driDispatchRemapTable[ driDispatchRemapTable_size ]; #if defined(USE_X86_ASM) #include "x86/common_x86_asm.h" #endif #if defined(USE_PPC_ASM) #include "ppc/common_ppc_features.h" #endif unsigned driParseDebugString( const char * debug, const struct dri_debug_control * control ) { unsigned flag; flag = 0; if ( debug != NULL ) { while( control->string != NULL ) { if ( !strcmp( debug, "all" ) || strstr( debug, control->string ) != NULL ) { flag |= control->flag; } control++; } } return flag; } /** * Create the \c GL_RENDERER string for DRI drivers. * * Almost all DRI drivers use a \c GL_RENDERER string of the form: * * "Mesa DRI " * * Using the supplied chip name, driver data, and AGP speed, this function * creates the string. * * \param buffer Buffer to hold the \c GL_RENDERER string. * \param hardware_name Name of the hardware. * \param driver_date Driver date. * \param agp_mode AGP mode (speed). * * \returns * The length of the string stored in \c buffer. This does \b not include * the terminating \c NUL character. */ unsigned driGetRendererString( char * buffer, const char * hardware_name, const char * driver_date, GLuint agp_mode ) { #define MAX_INFO 4 const char * cpu[MAX_INFO]; unsigned next = 0; unsigned i; unsigned offset; offset = sprintf( buffer, "Mesa DRI %s %s", hardware_name, driver_date ); /* Append any AGP-specific information. */ switch ( agp_mode ) { case 1: case 2: case 4: case 8: offset += sprintf( & buffer[ offset ], " AGP %ux", agp_mode ); break; default: break; } /* Append any CPU-specific information. */ #ifdef USE_X86_ASM if ( _mesa_x86_cpu_features ) { cpu[next] = " x86"; next++; } # ifdef USE_MMX_ASM if ( cpu_has_mmx ) { cpu[next] = (cpu_has_mmxext) ? "/MMX+" : "/MMX"; next++; } # endif # ifdef USE_3DNOW_ASM if ( cpu_has_3dnow ) { cpu[next] = (cpu_has_3dnowext) ? "/3DNow!+" : "/3DNow!"; next++; } # endif # ifdef USE_SSE_ASM if ( cpu_has_xmm ) { cpu[next] = (cpu_has_xmm2) ? "/SSE2" : "/SSE"; next++; } # endif #elif defined(USE_SPARC_ASM) cpu[0] = " SPARC"; next = 1; #elif defined(USE_PPC_ASM) if ( _mesa_ppc_cpu_features ) { cpu[next] = (cpu_has_64) ? " PowerPC 64" : " PowerPC"; next++; } # ifdef USE_VMX_ASM if ( cpu_has_vmx ) { cpu[next] = "/Altivec"; next++; } # endif if ( ! cpu_has_fpu ) { cpu[next] = "/No FPU"; next++; } #endif for ( i = 0 ; i < next ; i++ ) { const size_t len = strlen( cpu[i] ); strncpy( & buffer[ offset ], cpu[i], len ); offset += len; } return offset; } #define need_GL_ARB_multisample #define need_GL_ARB_transpose_matrix #define need_GL_ARB_window_pos #define need_GL_EXT_compiled_vertex_array #define need_GL_EXT_polygon_offset #define need_GL_EXT_texture_object #define need_GL_EXT_vertex_array #define need_GL_MESA_window_pos /* These are needed in *all* drivers because Mesa internally implements * certain functionality in terms of functions provided by these extensions. * For example, glBlendFunc is implemented by calling glBlendFuncSeparateEXT. */ #define need_GL_EXT_blend_func_separate #define need_GL_NV_vertex_program #include "extension_helper.h" static const struct dri_extension all_mesa_extensions[] = { { "GL_ARB_multisample", GL_ARB_multisample_functions }, { "GL_ARB_transpose_matrix", GL_ARB_transpose_matrix_functions }, { "GL_ARB_window_pos", GL_ARB_window_pos_functions }, { "GL_EXT_blend_func_separate", GL_EXT_blend_func_separate_functions }, { "GL_EXT_compiled_vertex_array", GL_EXT_compiled_vertex_array_functions }, { "GL_EXT_polygon_offset", GL_EXT_polygon_offset_functions }, { "GL_EXT_texture_object", GL_EXT_texture_object_functions }, { "GL_EXT_vertex_array", GL_EXT_vertex_array_functions }, { "GL_MESA_window_pos", GL_MESA_window_pos_functions }, { "GL_NV_vertex_program", GL_NV_vertex_program_functions }, { NULL, NULL } }; /** * Enable extensions supported by the driver. * * \bug * ARB_imaging isn't handled properly. In Mesa, enabling ARB_imaging also * enables all the sub-extensions that are folded into it. This means that * we need to add entry-points (via \c driInitSingleExtension) for those * new functions here. */ void driInitExtensions( GLcontext * ctx, const struct dri_extension * extensions_to_enable, GLboolean enable_imaging ) { static int first_time = 1; unsigned i; if ( first_time ) { for ( i = 0 ; i < driDispatchRemapTable_size ; i++ ) { driDispatchRemapTable[i] = -1; } first_time = 0; driInitExtensions( ctx, all_mesa_extensions, GL_FALSE ); } if ( (ctx != NULL) && enable_imaging ) { _mesa_enable_imaging_extensions( ctx ); } for ( i = 0 ; extensions_to_enable[i].name != NULL ; i++ ) { driInitSingleExtension( ctx, & extensions_to_enable[i] ); } } /** * Enable and add dispatch functions for a single extension * * \param ctx Context where extension is to be enabled. * \param ext Extension that is to be enabled. * * \sa driInitExtensions, _mesa_enable_extension, _glapi_add_entrypoint * * \todo * Determine if it would be better to use \c strlen instead of the hardcoded * for-loops. */ void driInitSingleExtension( GLcontext * ctx, const struct dri_extension * ext ) { unsigned i; if ( ext->functions != NULL ) { for ( i = 0 ; ext->functions[i].strings != NULL ; i++ ) { const char * functions[16]; const char * parameter_signature; const char * str = ext->functions[i].strings; unsigned j; unsigned offset; /* Separate the parameter signature from the rest of the string. * If the parameter signature is empty (i.e., the string starts * with a NUL character), then the function has a void parameter * list. */ parameter_signature = str; while ( str[0] != '\0' ) { str++; } str++; /* Divide the string into the substrings that name each * entry-point for the function. */ for ( j = 0 ; j < 16 ; j++ ) { if ( str[0] == '\0' ) { functions[j] = NULL; break; } functions[j] = str; while ( str[0] != '\0' ) { str++; } str++; } /* Add each entry-point to the dispatch table. */ offset = _glapi_add_dispatch( functions, parameter_signature ); if (offset == -1) { fprintf(stderr, "DISPATCH ERROR! _glapi_add_dispatch failed " "to add %s!\n", functions[0]); } else if (ext->functions[i].remap_index != -1) { driDispatchRemapTable[ ext->functions[i].remap_index ] = offset; } else if (ext->functions[i].offset != offset) { fprintf(stderr, "DISPATCH ERROR! %s -> %u != %u\n", functions[0], offset, ext->functions[i].offset); } } } if ( ctx != NULL ) { _mesa_enable_extension( ctx, ext->name ); } } /** * Utility function used by drivers to test the versions of other components. * * If one of the version requirements is not met, a message is logged using * \c __driUtilMessage. * * \param driver_name Name of the driver. Used in error messages. * \param driActual Actual DRI version supplied __driCreateNewScreen. * \param driExpected Minimum DRI version required by the driver. * \param ddxActual Actual DDX version supplied __driCreateNewScreen. * \param ddxExpected Minimum DDX minor and range of DDX major version required by the driver. * \param drmActual Actual DRM version supplied __driCreateNewScreen. * \param drmExpected Minimum DRM version required by the driver. * * \returns \c GL_TRUE if all version requirements are met. Otherwise, * \c GL_FALSE is returned. * * \sa __driCreateNewScreen, driCheckDriDdxDrmVersions2, __driUtilMessage * * \todo * Now that the old \c driCheckDriDdxDrmVersions function is gone, this * function and \c driCheckDriDdxDrmVersions2 should be renamed. */ GLboolean driCheckDriDdxDrmVersions3(const char * driver_name, const __DRIversion * driActual, const __DRIversion * driExpected, const __DRIversion * ddxActual, const __DRIutilversion2 * ddxExpected, const __DRIversion * drmActual, const __DRIversion * drmExpected) { static const char format[] = "%s DRI driver expected %s version %d.%d.x " "but got version %d.%d.%d\n"; static const char format2[] = "%s DRI driver expected %s version %d-%d.%d.x " "but got version %d.%d.%d\n"; /* Check the DRI version */ if ( (driActual->major != driExpected->major) || (driActual->minor < driExpected->minor) ) { fprintf(stderr, format, driver_name, "DRI", driExpected->major, driExpected->minor, driActual->major, driActual->minor, driActual->patch); return GL_FALSE; } /* Check that the DDX driver version is compatible */ /* for miniglx we pass in -1 so we can ignore the DDX version */ if ( (ddxActual->major != -1) && ((ddxActual->major < ddxExpected->major_min) || (ddxActual->major > ddxExpected->major_max) || (ddxActual->minor < ddxExpected->minor)) ) { fprintf(stderr, format2, driver_name, "DDX", ddxExpected->major_min, ddxExpected->major_max, ddxExpected->minor, ddxActual->major, ddxActual->minor, ddxActual->patch); return GL_FALSE; } /* Check that the DRM driver version is compatible */ if ( (drmActual->major != drmExpected->major) || (drmActual->minor < drmExpected->minor) ) { fprintf(stderr, format, driver_name, "DRM", drmExpected->major, drmExpected->minor, drmActual->major, drmActual->minor, drmActual->patch); return GL_FALSE; } return GL_TRUE; } GLboolean driCheckDriDdxDrmVersions2(const char * driver_name, const __DRIversion * driActual, const __DRIversion * driExpected, const __DRIversion * ddxActual, const __DRIversion * ddxExpected, const __DRIversion * drmActual, const __DRIversion * drmExpected) { __DRIutilversion2 ddx_expected; ddx_expected.major_min = ddxExpected->major; ddx_expected.major_max = ddxExpected->major; ddx_expected.minor = ddxExpected->minor; ddx_expected.patch = ddxExpected->patch; return driCheckDriDdxDrmVersions3(driver_name, driActual, driExpected, ddxActual, & ddx_expected, drmActual, drmExpected); } GLboolean driClipRectToFramebuffer( const GLframebuffer *buffer, GLint *x, GLint *y, GLsizei *width, GLsizei *height ) { /* left clipping */ if (*x < buffer->_Xmin) { *width -= (buffer->_Xmin - *x); *x = buffer->_Xmin; } /* right clipping */ if (*x + *width > buffer->_Xmax) *width -= (*x + *width - buffer->_Xmax - 1); if (*width <= 0) return GL_FALSE; /* bottom clipping */ if (*y < buffer->_Ymin) { *height -= (buffer->_Ymin - *y); *y = buffer->_Ymin; } /* top clipping */ if (*y + *height > buffer->_Ymax) *height -= (*y + *height - buffer->_Ymax - 1); if (*height <= 0) return GL_FALSE; return GL_TRUE; } /** * Creates a set of \c __GLcontextModes that a driver will expose. * * A set of \c __GLcontextModes will be created based on the supplied * parameters. The number of modes processed will be 2 * * \c num_depth_stencil_bits * \c num_db_modes. * * For the most part, data is just copied from \c depth_bits, \c stencil_bits, * \c db_modes, and \c visType into each \c __GLcontextModes element. * However, the meanings of \c fb_format and \c fb_type require further * explanation. The \c fb_format specifies which color components are in * each pixel and what the default order is. For example, \c GL_RGB specifies * that red, green, blue are available and red is in the "most significant" * position and blue is in the "least significant". The \c fb_type specifies * the bit sizes of each component and the actual ordering. For example, if * \c GL_UNSIGNED_SHORT_5_6_5_REV is specified with \c GL_RGB, bits [15:11] * are the blue value, bits [10:5] are the green value, and bits [4:0] are * the red value. * * One subtle issue is the combination of \c GL_RGB or \c GL_BGR and either * of the \c GL_UNSIGNED_INT_8_8_8_8 modes. The resulting mask values in the * \c __GLcontextModes structure is \b identical to the \c GL_RGBA or * \c GL_BGRA case, except the \c alphaMask is zero. This means that, as * far as this routine is concerned, \c GL_RGB with \c GL_UNSIGNED_INT_8_8_8_8 * still uses 32-bits. * * If in doubt, look at the tables used in the function. * * \param ptr_to_modes Pointer to a pointer to a linked list of * \c __GLcontextModes. Upon completion, a pointer to * the next element to be process will be stored here. * If the function fails and returns \c GL_FALSE, this * value will be unmodified, but some elements in the * linked list may be modified. * \param fb_format Format of the framebuffer. Currently only \c GL_RGB, * \c GL_RGBA, \c GL_BGR, and \c GL_BGRA are supported. * \param fb_type Type of the pixels in the framebuffer. Currently only * \c GL_UNSIGNED_SHORT_5_6_5, * \c GL_UNSIGNED_SHORT_5_6_5_REV, * \c GL_UNSIGNED_INT_8_8_8_8, and * \c GL_UNSIGNED_INT_8_8_8_8_REV are supported. * \param depth_bits Array of depth buffer sizes to be exposed. * \param stencil_bits Array of stencil buffer sizes to be exposed. * \param num_depth_stencil_bits Number of entries in both \c depth_bits and * \c stencil_bits. * \param db_modes Array of buffer swap modes. If an element has a * value of \c GLX_NONE, then it represents a * single-buffered mode. Other valid values are * \c GLX_SWAP_EXCHANGE_OML, \c GLX_SWAP_COPY_OML, and * \c GLX_SWAP_UNDEFINED_OML. See the * GLX_OML_swap_method extension spec for more details. * \param num_db_modes Number of entries in \c db_modes. * \param visType GLX visual type. Usually either \c GLX_TRUE_COLOR or * \c GLX_DIRECT_COLOR. * * \returns * \c GL_TRUE on success or \c GL_FALSE on failure. Currently the only * cause of failure is a bad parameter (i.e., unsupported \c fb_format or * \c fb_type). * * \todo * There is currently no way to support packed RGB modes (i.e., modes with * exactly 3 bytes per pixel) or floating-point modes. This could probably * be done by creating some new, private enums with clever names likes * \c GL_UNSIGNED_3BYTE_8_8_8, \c GL_4FLOAT_32_32_32_32, * \c GL_4HALF_16_16_16_16, etc. We can cross that bridge when we come to it. */ __DRIconfig ** driCreateConfigs(GLenum fb_format, GLenum fb_type, const u_int8_t * depth_bits, const u_int8_t * stencil_bits, unsigned num_depth_stencil_bits, const GLenum * db_modes, unsigned num_db_modes) { static const u_int8_t bits_table[4][4] = { /* R G B A */ { 3, 3, 2, 0 }, /* Any GL_UNSIGNED_BYTE_3_3_2 */ { 5, 6, 5, 0 }, /* Any GL_UNSIGNED_SHORT_5_6_5 */ { 8, 8, 8, 0 }, /* Any RGB with any GL_UNSIGNED_INT_8_8_8_8 */ { 8, 8, 8, 8 } /* Any RGBA with any GL_UNSIGNED_INT_8_8_8_8 */ }; static const u_int32_t masks_table_rgb[6][4] = { { 0x000000E0, 0x0000001C, 0x00000003, 0x00000000 }, /* 3_3_2 */ { 0x00000007, 0x00000038, 0x000000C0, 0x00000000 }, /* 2_3_3_REV */ { 0x0000F800, 0x000007E0, 0x0000001F, 0x00000000 }, /* 5_6_5 */ { 0x0000001F, 0x000007E0, 0x0000F800, 0x00000000 }, /* 5_6_5_REV */ { 0xFF000000, 0x00FF0000, 0x0000FF00, 0x00000000 }, /* 8_8_8_8 */ { 0x000000FF, 0x0000FF00, 0x00FF0000, 0x00000000 } /* 8_8_8_8_REV */ }; static const u_int32_t masks_table_rgba[6][4] = { { 0x000000E0, 0x0000001C, 0x00000003, 0x00000000 }, /* 3_3_2 */ { 0x00000007, 0x00000038, 0x000000C0, 0x00000000 }, /* 2_3_3_REV */ { 0x0000F800, 0x000007E0, 0x0000001F, 0x00000000 }, /* 5_6_5 */ { 0x0000001F, 0x000007E0, 0x0000F800, 0x00000000 }, /* 5_6_5_REV */ { 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF }, /* 8_8_8_8 */ { 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000 }, /* 8_8_8_8_REV */ }; static const u_int32_t masks_table_bgr[6][4] = { { 0x00000007, 0x00000038, 0x000000C0, 0x00000000 }, /* 3_3_2 */ { 0x000000E0, 0x0000001C, 0x00000003, 0x00000000 }, /* 2_3_3_REV */ { 0x0000001F, 0x000007E0, 0x0000F800, 0x00000000 }, /* 5_6_5 */ { 0x0000F800, 0x000007E0, 0x0000001F, 0x00000000 }, /* 5_6_5_REV */ { 0x0000FF00, 0x00FF0000, 0xFF000000, 0x00000000 }, /* 8_8_8_8 */ { 0x00FF0000, 0x0000FF00, 0x000000FF, 0x00000000 }, /* 8_8_8_8_REV */ }; static const u_int32_t masks_table_bgra[6][4] = { { 0x00000007, 0x00000038, 0x000000C0, 0x00000000 }, /* 3_3_2 */ { 0x000000E0, 0x0000001C, 0x00000003, 0x00000000 }, /* 2_3_3_REV */ { 0x0000001F, 0x000007E0, 0x0000F800, 0x00000000 }, /* 5_6_5 */ { 0x0000F800, 0x000007E0, 0x0000001F, 0x00000000 }, /* 5_6_5_REV */ { 0x0000FF00, 0x00FF0000, 0xFF000000, 0x000000FF }, /* 8_8_8_8 */ { 0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000 }, /* 8_8_8_8_REV */ }; static const u_int8_t bytes_per_pixel[6] = { 1, /* 3_3_2 */ 1, /* 2_3_3_REV */ 2, /* 5_6_5 */ 2, /* 5_6_5_REV */ 4, /* 8_8_8_8 */ 4 /* 8_8_8_8_REV */ }; const u_int8_t * bits; const u_int32_t * masks; int index; __DRIconfig **configs, **c; __GLcontextModes *modes; unsigned i; unsigned j; unsigned k; unsigned num_modes; unsigned num_accum_bits = 2; switch ( fb_type ) { case GL_UNSIGNED_BYTE_3_3_2: index = 0; break; case GL_UNSIGNED_BYTE_2_3_3_REV: index = 1; break; case GL_UNSIGNED_SHORT_5_6_5: index = 2; break; case GL_UNSIGNED_SHORT_5_6_5_REV: index = 3; break; case GL_UNSIGNED_INT_8_8_8_8: index = 4; break; case GL_UNSIGNED_INT_8_8_8_8_REV: index = 5; break; default: fprintf( stderr, "[%s:%d] Unknown framebuffer type 0x%04x.\n", __FUNCTION__, __LINE__, fb_type ); return NULL; } /* Valid types are GL_UNSIGNED_SHORT_5_6_5 and GL_UNSIGNED_INT_8_8_8_8 and * the _REV versions. * * Valid formats are GL_RGBA, GL_RGB, and GL_BGRA. */ switch ( fb_format ) { case GL_RGB: masks = masks_table_rgb[ index ]; break; case GL_RGBA: masks = masks_table_rgba[ index ]; break; case GL_BGR: masks = masks_table_bgr[ index ]; break; case GL_BGRA: masks = masks_table_bgra[ index ]; break; default: fprintf( stderr, "[%s:%d] Unknown framebuffer format 0x%04x.\n", __FUNCTION__, __LINE__, fb_format ); return NULL; } switch ( bytes_per_pixel[ index ] ) { case 1: bits = bits_table[0]; break; case 2: bits = bits_table[1]; break; default: bits = ((fb_format == GL_RGB) || (fb_format == GL_BGR)) ? bits_table[2] : bits_table[3]; break; } num_modes = num_depth_stencil_bits * num_db_modes * num_accum_bits; configs = _mesa_calloc((num_modes + 1) * sizeof *configs); if (configs == NULL) return NULL; c = configs; for ( k = 0 ; k < num_depth_stencil_bits ; k++ ) { for ( i = 0 ; i < num_db_modes ; i++ ) { for ( j = 0 ; j < num_accum_bits ; j++ ) { *c = _mesa_malloc (sizeof **c); modes = &(*c)->modes; c++; memset(modes, 0, sizeof *modes); modes->redBits = bits[0]; modes->greenBits = bits[1]; modes->blueBits = bits[2]; modes->alphaBits = bits[3]; modes->redMask = masks[0]; modes->greenMask = masks[1]; modes->blueMask = masks[2]; modes->alphaMask = masks[3]; modes->rgbBits = modes->redBits + modes->greenBits + modes->blueBits + modes->alphaBits; modes->accumRedBits = 16 * j; modes->accumGreenBits = 16 * j; modes->accumBlueBits = 16 * j; modes->accumAlphaBits = (masks[3] != 0) ? 16 * j : 0; modes->visualRating = (j == 0) ? GLX_NONE : GLX_SLOW_CONFIG; modes->stencilBits = stencil_bits[k]; modes->depthBits = depth_bits[k]; modes->transparentPixel = GLX_NONE; modes->transparentRed = GLX_DONT_CARE; modes->transparentGreen = GLX_DONT_CARE; modes->transparentBlue = GLX_DONT_CARE; modes->transparentAlpha = GLX_DONT_CARE; modes->transparentIndex = GLX_DONT_CARE; modes->visualType = GLX_DONT_CARE; modes->renderType = GLX_RGBA_BIT; modes->drawableType = GLX_WINDOW_BIT; modes->rgbMode = GL_TRUE; if ( db_modes[i] == GLX_NONE ) { modes->doubleBufferMode = GL_FALSE; } else { modes->doubleBufferMode = GL_TRUE; modes->swapMethod = db_modes[i]; } modes->haveAccumBuffer = ((modes->accumRedBits + modes->accumGreenBits + modes->accumBlueBits + modes->accumAlphaBits) > 0); modes->haveDepthBuffer = (modes->depthBits > 0); modes->haveStencilBuffer = (modes->stencilBits > 0); modes->bindToTextureRgb = GL_TRUE; modes->bindToTextureRgba = GL_TRUE; modes->bindToMipmapTexture = GL_FALSE; modes->bindToTextureTargets = modes->rgbMode ? __DRI_ATTRIB_TEXTURE_1D_BIT | __DRI_ATTRIB_TEXTURE_2D_BIT | __DRI_ATTRIB_TEXTURE_RECTANGLE_BIT : 0; } } } *c = NULL; return configs; } const __DRIconfig **driConcatConfigs(__DRIconfig **a, __DRIconfig **b) { const __DRIconfig **all; int i, j, index; i = 0; while (a[i] != NULL) i++; j = 0; while (b[j] != NULL) j++; all = _mesa_malloc((i + j + 1) * sizeof *all); index = 0; for (i = 0; a[i] != NULL; i++) all[index++] = a[i]; for (j = 0; b[j] != NULL; j++) all[index++] = b[j]; all[index++] = NULL; _mesa_free(a); _mesa_free(b); return all; } #define __ATTRIB(attrib, field) \ { attrib, offsetof(__GLcontextModes, field) } static const struct { unsigned int attrib, offset; } attribMap[] = { __ATTRIB(__DRI_ATTRIB_BUFFER_SIZE, rgbBits), __ATTRIB(__DRI_ATTRIB_LEVEL, level), __ATTRIB(__DRI_ATTRIB_RED_SIZE, redBits), __ATTRIB(__DRI_ATTRIB_GREEN_SIZE, greenBits), __ATTRIB(__DRI_ATTRIB_BLUE_SIZE, blueBits), __ATTRIB(__DRI_ATTRIB_ALPHA_SIZE, alphaBits), __ATTRIB(__DRI_ATTRIB_DEPTH_SIZE, depthBits), __ATTRIB(__DRI_ATTRIB_STENCIL_SIZE, stencilBits), __ATTRIB(__DRI_ATTRIB_ACCUM_RED_SIZE, accumRedBits), __ATTRIB(__DRI_ATTRIB_ACCUM_GREEN_SIZE, accumGreenBits), __ATTRIB(__DRI_ATTRIB_ACCUM_BLUE_SIZE, accumBlueBits), __ATTRIB(__DRI_ATTRIB_ACCUM_ALPHA_SIZE, accumAlphaBits), __ATTRIB(__DRI_ATTRIB_SAMPLE_BUFFERS, sampleBuffers), __ATTRIB(__DRI_ATTRIB_SAMPLES, samples), __ATTRIB(__DRI_ATTRIB_DOUBLE_BUFFER, doubleBufferMode), __ATTRIB(__DRI_ATTRIB_STEREO, stereoMode), __ATTRIB(__DRI_ATTRIB_AUX_BUFFERS, numAuxBuffers), __ATTRIB(__DRI_ATTRIB_TRANSPARENT_TYPE, transparentPixel), __ATTRIB(__DRI_ATTRIB_TRANSPARENT_INDEX_VALUE, transparentPixel), __ATTRIB(__DRI_ATTRIB_TRANSPARENT_RED_VALUE, transparentRed), __ATTRIB(__DRI_ATTRIB_TRANSPARENT_GREEN_VALUE, transparentGreen), __ATTRIB(__DRI_ATTRIB_TRANSPARENT_BLUE_VALUE, transparentBlue), __ATTRIB(__DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE, transparentAlpha), __ATTRIB(__DRI_ATTRIB_FLOAT_MODE, floatMode), __ATTRIB(__DRI_ATTRIB_RED_MASK, redMask), __ATTRIB(__DRI_ATTRIB_GREEN_MASK, greenMask), __ATTRIB(__DRI_ATTRIB_BLUE_MASK, blueMask), __ATTRIB(__DRI_ATTRIB_ALPHA_MASK, alphaMask), __ATTRIB(__DRI_ATTRIB_MAX_PBUFFER_WIDTH, maxPbufferWidth), __ATTRIB(__DRI_ATTRIB_MAX_PBUFFER_HEIGHT, maxPbufferHeight), __ATTRIB(__DRI_ATTRIB_MAX_PBUFFER_PIXELS, maxPbufferPixels), __ATTRIB(__DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH, optimalPbufferWidth), __ATTRIB(__DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT, optimalPbufferHeight), __ATTRIB(__DRI_ATTRIB_SWAP_METHOD, swapMethod), __ATTRIB(__DRI_ATTRIB_BIND_TO_TEXTURE_RGB, bindToTextureRgb), __ATTRIB(__DRI_ATTRIB_BIND_TO_TEXTURE_RGBA, bindToTextureRgba), __ATTRIB(__DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE, bindToMipmapTexture), __ATTRIB(__DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS, bindToTextureTargets), __ATTRIB(__DRI_ATTRIB_YINVERTED, yInverted), /* The struct field doesn't matter here, these are handled by the * switch in driGetConfigAttribIndex. We need them in the array * so the iterator includes them though.*/ __ATTRIB(__DRI_ATTRIB_RENDER_TYPE, level), __ATTRIB(__DRI_ATTRIB_CONFIG_CAVEAT, level), __ATTRIB(__DRI_ATTRIB_SWAP_METHOD, level) }; #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0])) static int driGetConfigAttribIndex(const __DRIconfig *config, unsigned int index, unsigned int *value) { switch (attribMap[index].attrib) { case __DRI_ATTRIB_RENDER_TYPE: if (config->modes.rgbMode) *value = __DRI_ATTRIB_RGBA_BIT; else *value = __DRI_ATTRIB_COLOR_INDEX_BIT; break; case __DRI_ATTRIB_CONFIG_CAVEAT: if (config->modes.visualRating == GLX_NON_CONFORMANT_CONFIG) *value = __DRI_ATTRIB_NON_CONFORMANT_CONFIG; else if (config->modes.visualRating == GLX_SLOW_CONFIG) *value = __DRI_ATTRIB_SLOW_BIT; else *value = 0; break; case __DRI_ATTRIB_SWAP_METHOD: break; case __DRI_ATTRIB_FLOAT_MODE: *value = config->modes.floatMode; break; default: *value = *(unsigned int *) ((char *) &config->modes + attribMap[index].offset); break; } return GL_TRUE; } int driGetConfigAttrib(const __DRIconfig *config, unsigned int attrib, unsigned int *value) { int i; for (i = 0; i < ARRAY_SIZE(attribMap); i++) if (attribMap[i].attrib == attrib) return driGetConfigAttribIndex(config, i, value); return GL_FALSE; } int driIndexConfigAttrib(const __DRIconfig *config, int index, unsigned int *attrib, unsigned int *value) { if (index >= 0 && index < ARRAY_SIZE(attribMap)) { *attrib = attribMap[index].attrib; return driGetConfigAttribIndex(config, index, value); } return GL_FALSE; }