diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/drivers/dri/common/utils.c')
| -rw-r--r-- | nx-X11/extras/Mesa/src/mesa/drivers/dri/common/utils.c | 695 |
1 files changed, 0 insertions, 695 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/common/utils.c b/nx-X11/extras/Mesa/src/mesa/drivers/dri/common/utils.c deleted file mode 100644 index fbe1991fa..000000000 --- a/nx-X11/extras/Mesa/src/mesa/drivers/dri/common/utils.c +++ /dev/null @@ -1,695 +0,0 @@ -/* - * (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 <idr@us.ibm.com> - */ - -#include <string.h> -#include <stdlib.h> -#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 <chip> <driver date> <AGP speed) <CPU information>" - * - * 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 ( ext->functions[i].remap_index != -1 ) { - driDispatchRemapTable[ ext->functions[i].remap_index ] = offset; - } - - if ( (ext->functions[i].offset != -1) - && (ext->functions[i].offset != offset) ) { - fprintf(stderr, "DISPATCH ERROR! %s -> %u != %u\n", functions[0], - driDispatchRemapTable[ ext->functions[i].remap_index ], - ext->functions[i].offset); - } - } - } - - if ( ctx != NULL ) { - _mesa_enable_extension( ctx, ext->name ); - } -} - - -/** - * Utility function used by drivers to test the verions 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"; - static const char format2[] = "%s DRI driver expected %s version %d-%d.%d.x " - "but got version %d.%d.%d"; - - - /* Check the DRI version */ - if ( (driActual->major != driExpected->major) - || (driActual->minor < driExpected->minor) ) { - __driUtilMessage(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 */ - if ( (ddxActual->major < ddxExpected->major_min) - || (ddxActual->major > ddxExpected->major_max) - || (ddxActual->minor < ddxExpected->minor) ) { - __driUtilMessage(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) ) { - __driUtilMessage(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 sublte 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. - */ -GLboolean -driFillInModes( __GLcontextModes ** ptr_to_modes, - 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, - int visType ) -{ - static const u_int8_t bits_table[3][4] = { - /* R G B A */ - { 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 */ - }; - - /* The following arrays are all indexed by the fb_type masked with 0x07. - * Given the four supported fb_type values, this results in valid array - * indices of 3, 4, 5, and 7. - */ - static const u_int32_t masks_table_rgb[8][4] = { - { 0x00000000, 0x00000000, 0x00000000, 0x00000000 }, - { 0x00000000, 0x00000000, 0x00000000, 0x00000000 }, - { 0x00000000, 0x00000000, 0x00000000, 0x00000000 }, - { 0x0000F800, 0x000007E0, 0x0000001F, 0x00000000 }, /* 5_6_5 */ - { 0x0000001F, 0x000007E0, 0x0000F800, 0x00000000 }, /* 5_6_5_REV */ - { 0xFF000000, 0x00FF0000, 0x0000FF00, 0x00000000 }, /* 8_8_8_8 */ - { 0x00000000, 0x00000000, 0x00000000, 0x00000000 }, - { 0x000000FF, 0x0000FF00, 0x00FF0000, 0x00000000 } /* 8_8_8_8_REV */ - }; - - static const u_int32_t masks_table_rgba[8][4] = { - { 0x00000000, 0x00000000, 0x00000000, 0x00000000 }, - { 0x00000000, 0x00000000, 0x00000000, 0x00000000 }, - { 0x00000000, 0x00000000, 0x00000000, 0x00000000 }, - { 0x0000F800, 0x000007E0, 0x0000001F, 0x00000000 }, /* 5_6_5 */ - { 0x0000001F, 0x000007E0, 0x0000F800, 0x00000000 }, /* 5_6_5_REV */ - { 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF }, /* 8_8_8_8 */ - { 0x00000000, 0x00000000, 0x00000000, 0x00000000 }, - { 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000 }, /* 8_8_8_8_REV */ - }; - - static const u_int32_t masks_table_bgr[8][4] = { - { 0x00000000, 0x00000000, 0x00000000, 0x00000000 }, - { 0x00000000, 0x00000000, 0x00000000, 0x00000000 }, - { 0x00000000, 0x00000000, 0x00000000, 0x00000000 }, - { 0x0000001F, 0x000007E0, 0x0000F800, 0x00000000 }, /* 5_6_5 */ - { 0x0000F800, 0x000007E0, 0x0000001F, 0x00000000 }, /* 5_6_5_REV */ - { 0x0000FF00, 0x00FF0000, 0xFF000000, 0x00000000 }, /* 8_8_8_8 */ - { 0x00000000, 0x00000000, 0x00000000, 0x00000000 }, - { 0x00FF0000, 0x0000FF00, 0x000000FF, 0x00000000 }, /* 8_8_8_8_REV */ - }; - - static const u_int32_t masks_table_bgra[8][4] = { - { 0x00000000, 0x00000000, 0x00000000, 0x00000000 }, - { 0x00000000, 0x00000000, 0x00000000, 0x00000000 }, - { 0x00000000, 0x00000000, 0x00000000, 0x00000000 }, - { 0x0000001F, 0x000007E0, 0x0000F800, 0x00000000 }, /* 5_6_5 */ - { 0x0000F800, 0x000007E0, 0x0000001F, 0x00000000 }, /* 5_6_5_REV */ - { 0x0000FF00, 0x00FF0000, 0xFF000000, 0x000000FF }, /* 8_8_8_8 */ - { 0x00000000, 0x00000000, 0x00000000, 0x00000000 }, - { 0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000 }, /* 8_8_8_8_REV */ - }; - - static const u_int8_t bytes_per_pixel[8] = { - 0, 0, 0, 2, 2, 4, 0, 4 - }; - - const u_int8_t * bits; - const u_int32_t * masks; - const int index = fb_type & 0x07; - __GLcontextModes * modes = *ptr_to_modes; - unsigned i; - unsigned j; - unsigned k; - - - if ( bytes_per_pixel[ index ] == 0 ) { - fprintf( stderr, "[%s:%u] Framebuffer type 0x%04x has 0 bytes per pixel.\n", - __FUNCTION__, __LINE__, fb_type ); - return GL_FALSE; - } - - - /* 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: - bits = (bytes_per_pixel[ index ] == 2) - ? bits_table[0] : bits_table[1]; - masks = masks_table_rgb[ index ]; - break; - - case GL_RGBA: - bits = (bytes_per_pixel[ index ] == 2) - ? bits_table[0] : bits_table[2]; - masks = masks_table_rgba[ index ]; - break; - - case GL_BGR: - bits = (bytes_per_pixel[ index ] == 2) - ? bits_table[0] : bits_table[1]; - masks = masks_table_bgr[ index ]; - break; - - case GL_BGRA: - bits = (bytes_per_pixel[ index ] == 2) - ? bits_table[0] : bits_table[2]; - masks = masks_table_bgra[ index ]; - break; - - default: - fprintf( stderr, "[%s:%u] Framebuffer format 0x%04x is not GL_RGB, GL_RGBA, GL_BGR, or GL_BGRA.\n", - __FUNCTION__, __LINE__, fb_format ); - return GL_FALSE; - } - - - for ( k = 0 ; k < num_depth_stencil_bits ; k++ ) { - for ( i = 0 ; i < num_db_modes ; i++ ) { - for ( j = 0 ; j < 2 ; j++ ) { - - 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->visualType = visType; - 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 = modes->next; - } - } - } - - *ptr_to_modes = modes; - return GL_TRUE; -} |