X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fdrivers%2Fdri%2Fcommon%2Futils.c;h=6a189e728582ba3876c9807bcc72465a7f5665c5;hb=b7fd06a871893d8ed482d16207136e324bb7d85c;hp=d337cb6b948b7b56e4ce707b8c097380483afc83;hpb=462183fe4cb6df6d90632d9e2cee881c8d26b1cb;p=mesa.git diff --git a/src/mesa/drivers/dri/common/utils.c b/src/mesa/drivers/dri/common/utils.c index d337cb6b948..6a189e72858 100644 --- a/src/mesa/drivers/dri/common/utils.c +++ b/src/mesa/drivers/dri/common/utils.c @@ -1,5 +1,5 @@ /* - * (c) Copyright IBM Corporation 2002 + * (C) Copyright IBM Corporation 2002, 2004 * All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a @@ -20,22 +20,32 @@ * 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. * - * Authors: - * Ian Romanick + * \author Ian Romanick */ -/* $XFree86:$ */ #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 ) @@ -60,17 +70,33 @@ driParseDebugString( const char * debug, - +/** + * 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 ) { -#ifdef USE_X86_ASM - char * x86_str = ""; - char * mmx_str = ""; - char * tdnow_str = ""; - char * sse_str = ""; -#endif +#define MAX_INFO 4 + const char * cpu[MAX_INFO]; + unsigned next = 0; + unsigned i; unsigned offset; @@ -94,98 +120,320 @@ driGetRendererString( char * buffer, const char * hardware_name, */ #ifdef USE_X86_ASM if ( _mesa_x86_cpu_features ) { - x86_str = " x86"; + cpu[next] = " x86"; + next++; } # ifdef USE_MMX_ASM if ( cpu_has_mmx ) { - mmx_str = (cpu_has_mmxext) ? "/MMX+" : "/MMX"; + cpu[next] = (cpu_has_mmxext) ? "/MMX+" : "/MMX"; + next++; } # endif # ifdef USE_3DNOW_ASM if ( cpu_has_3dnow ) { - tdnow_str = (cpu_has_3dnowext) ? "/3DNow!+" : "/3DNow!"; + cpu[next] = (cpu_has_3dnowext) ? "/3DNow!+" : "/3DNow!"; + next++; } # endif # ifdef USE_SSE_ASM if ( cpu_has_xmm ) { - sse_str = (cpu_has_xmm2) ? "/SSE2" : "/SSE"; + cpu[next] = (cpu_has_xmm2) ? "/SSE2" : "/SSE"; + next++; } # endif - offset += sprintf( & buffer[ offset ], "%s%s%s%s", - x86_str, mmx_str, tdnow_str, sse_str ); - #elif defined(USE_SPARC_ASM) - offset += sprintf( & buffer[ offset ], " Sparc" ); + 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 char * const extensions_to_enable[], - GLboolean enable_imaging ) + const struct dri_extension * extensions_to_enable, + GLboolean enable_imaging ) { + static int first_time = 1; unsigned i; - if ( enable_imaging ) { + 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] != NULL ; i++ ) { - _mesa_enable_extension( ctx, extensions_to_enable[i] ); + 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 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 -driCheckDriDdxDrmVersions(__DRIscreenPrivate *sPriv, - const char * driver_name, - int dri_major, int dri_minor, - int ddx_major, int ddx_minor, - int drm_major, int drm_minor) +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"; - int major, minor, patch; + "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"; + -#ifndef _SOLO /* Check the DRI version */ - if (XF86DRIQueryVersion(sPriv->display, &major, &minor, &patch)) { - if (major != dri_major || minor < dri_minor) { - __driUtilMessage(format, "DRI", driver_name, dri_major, dri_minor, - major, minor, patch); - return GL_FALSE; - } + 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 */ - if (sPriv->ddxMajor != ddx_major || sPriv->ddxMinor < ddx_minor) { - __driUtilMessage(format, "DDX", driver_name, ddx_major, ddx_minor, - sPriv->ddxMajor, sPriv->ddxMinor, sPriv->ddxPatch); + /* 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; } -#else - (void)major;(void)minor;(void)patch; -#endif /* Check that the DRM driver version is compatible */ - if (sPriv->drmMajor != drm_major || sPriv->drmMinor < drm_minor) { - __driUtilMessage(format, "DRM", driver_name, drm_major, drm_minor, - sPriv->drmMajor, sPriv->drmMinor, sPriv->drmPatch); + 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); +} + + + +GLint +driIntersectArea( drm_clip_rect_t rect1, drm_clip_rect_t rect2 ) +{ + if (rect2.x1 > rect1.x1) rect1.x1 = rect2.x1; + if (rect2.x2 < rect1.x2) rect1.x2 = rect2.x2; + if (rect2.y1 > rect1.y1) rect1.y1 = rect2.y1; + if (rect2.y2 < rect1.y2) rect1.y2 = rect2.y2; + + if (rect1.x1 > rect1.x2 || rect1.y1 > rect1.y2) return 0; + + return (rect1.x2 - rect1.x1) * (rect1.y2 - rect1.y1); +} + GLboolean driClipRectToFramebuffer( const GLframebuffer *buffer, GLint *x, GLint *y, GLsizei *width, GLsizei *height ) @@ -218,3 +466,246 @@ GLboolean driClipRectToFramebuffer( const GLframebuffer *buffer, 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; +}