diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/drivers/dri/ffb/ffb_xmesa.c')
| -rw-r--r-- | nx-X11/extras/Mesa/src/mesa/drivers/dri/ffb/ffb_xmesa.c | 753 |
1 files changed, 0 insertions, 753 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/ffb/ffb_xmesa.c b/nx-X11/extras/Mesa/src/mesa/drivers/dri/ffb/ffb_xmesa.c deleted file mode 100644 index 530c5373a..000000000 --- a/nx-X11/extras/Mesa/src/mesa/drivers/dri/ffb/ffb_xmesa.c +++ /dev/null @@ -1,753 +0,0 @@ -/* $XFree86: xc/lib/GL/mesa/src/drv/ffb/ffb_xmesa.c,v 1.4 2002/02/22 21:32:59 dawes Exp $ - * - * GLX Hardware Device Driver for Sun Creator/Creator3D - * Copyright (C) 2000, 2001 David S. Miller - * - * 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 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 - * DAVID MILLER, OR ANY OTHER CONTRIBUTORS 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. - * - * - * David S. Miller <davem@redhat.com> - */ - -#include "ffb_xmesa.h" -#include "context.h" -#include "framebuffer.h" -#include "matrix.h" -#include "renderbuffer.h" -#include "simple_list.h" -#include "imports.h" -#include "utils.h" - -#include "swrast/swrast.h" -#include "swrast_setup/swrast_setup.h" -#include "tnl/tnl.h" -#include "tnl/t_pipeline.h" -#include "array_cache/acache.h" -#include "drivers/common/driverfuncs.h" - -#include "ffb_context.h" -#include "ffb_dd.h" -#include "ffb_span.h" -#include "ffb_depth.h" -#include "ffb_stencil.h" -#include "ffb_clear.h" -#include "ffb_vb.h" -#include "ffb_tris.h" -#include "ffb_lines.h" -#include "ffb_points.h" -#include "ffb_state.h" -#include "ffb_tex.h" -#include "ffb_lock.h" -#include "ffb_vtxfmt.h" -#include "ffb_bitmap.h" - -#include "drm_sarea.h" - -static GLboolean -ffbInitDriver(__DRIscreenPrivate *sPriv) -{ - ffbScreenPrivate *ffbScreen; - FFBDRIPtr gDRIPriv = (FFBDRIPtr) sPriv->pDevPriv; - drmAddress map; - - if (getenv("LIBGL_FORCE_XSERVER")) - return GL_FALSE; - - - if (sPriv->devPrivSize != sizeof(FFBDRIRec)) { - fprintf(stderr,"\nERROR! sizeof(FFBDRIRec) does not match passed size from device driver\n"); - return GL_FALSE; - } - - /* Allocate the private area. */ - ffbScreen = (ffbScreenPrivate *) MALLOC(sizeof(ffbScreenPrivate)); - if (!ffbScreen) - return GL_FALSE; - - /* Map FBC registers. */ - if (drmMap(sPriv->fd, - gDRIPriv->hFbcRegs, - gDRIPriv->sFbcRegs, - &map)) { - FREE(ffbScreen); - return GL_FALSE; - } - ffbScreen->regs = (ffb_fbcPtr) map; - - /* Map ramdac registers. */ - if (drmMap(sPriv->fd, - gDRIPriv->hDacRegs, - gDRIPriv->sDacRegs, - &map)) { - drmUnmap((drmAddress)ffbScreen->regs, gDRIPriv->sFbcRegs); - FREE(ffbScreen); - return GL_FALSE; - } - ffbScreen->dac = (ffb_dacPtr) map; - - /* Map "Smart" framebuffer views. */ - if (drmMap(sPriv->fd, - gDRIPriv->hSfb8r, - gDRIPriv->sSfb8r, - &map)) { - drmUnmap((drmAddress)ffbScreen->regs, gDRIPriv->sFbcRegs); - drmUnmap((drmAddress)ffbScreen->dac, gDRIPriv->sDacRegs); - FREE(ffbScreen); - return GL_FALSE; - } - ffbScreen->sfb8r = (volatile char *) map; - - if (drmMap(sPriv->fd, - gDRIPriv->hSfb32, - gDRIPriv->sSfb32, - &map)) { - drmUnmap((drmAddress)ffbScreen->regs, gDRIPriv->sFbcRegs); - drmUnmap((drmAddress)ffbScreen->dac, gDRIPriv->sDacRegs); - drmUnmap((drmAddress)ffbScreen->sfb8r, gDRIPriv->sSfb8r); - FREE(ffbScreen); - return GL_FALSE; - } - ffbScreen->sfb32 = (volatile char *) map; - - if (drmMap(sPriv->fd, - gDRIPriv->hSfb64, - gDRIPriv->sSfb64, - &map)) { - drmUnmap((drmAddress)ffbScreen->regs, gDRIPriv->sFbcRegs); - drmUnmap((drmAddress)ffbScreen->dac, gDRIPriv->sDacRegs); - drmUnmap((drmAddress)ffbScreen->sfb8r, gDRIPriv->sSfb8r); - drmUnmap((drmAddress)ffbScreen->sfb32, gDRIPriv->sSfb32); - FREE(ffbScreen); - return GL_FALSE; - } - ffbScreen->sfb64 = (volatile char *) map; - - ffbScreen->fifo_cache = 0; - ffbScreen->rp_active = 0; - - ffbScreen->sPriv = sPriv; - sPriv->private = (void *) ffbScreen; - - ffbDDLinefuncInit(); - ffbDDPointfuncInit(); - - return GL_TRUE; -} - - -static void -ffbDestroyScreen(__DRIscreenPrivate *sPriv) -{ - ffbScreenPrivate *ffbScreen = sPriv->private; - FFBDRIPtr gDRIPriv = (FFBDRIPtr) sPriv->pDevPriv; - - drmUnmap((drmAddress)ffbScreen->regs, gDRIPriv->sFbcRegs); - drmUnmap((drmAddress)ffbScreen->dac, gDRIPriv->sDacRegs); - drmUnmap((drmAddress)ffbScreen->sfb8r, gDRIPriv->sSfb8r); - drmUnmap((drmAddress)ffbScreen->sfb32, gDRIPriv->sSfb32); - drmUnmap((drmAddress)ffbScreen->sfb64, gDRIPriv->sSfb64); - - FREE(ffbScreen); -} - -static const struct tnl_pipeline_stage *ffb_pipeline[] = { - &_tnl_vertex_transform_stage, - &_tnl_normal_transform_stage, - &_tnl_lighting_stage, - /* REMOVE: fog coord stage */ - &_tnl_texgen_stage, - &_tnl_texture_transform_stage, - /* REMOVE: point attenuation stage */ - &_tnl_render_stage, - 0, -}; - -/* Create and initialize the Mesa and driver specific context data */ -static GLboolean -ffbCreateContext(const __GLcontextModes *mesaVis, - __DRIcontextPrivate *driContextPriv, - void *sharedContextPrivate) -{ - ffbContextPtr fmesa; - GLcontext *ctx, *shareCtx; - __DRIscreenPrivate *sPriv; - ffbScreenPrivate *ffbScreen; - char *debug; - struct dd_function_table functions; - - /* Allocate ffb context */ - fmesa = (ffbContextPtr) CALLOC(sizeof(ffbContextRec)); - if (!fmesa) - return GL_FALSE; - - _mesa_init_driver_functions(&functions); - - /* Allocate Mesa context */ - if (sharedContextPrivate) - shareCtx = ((ffbContextPtr) sharedContextPrivate)->glCtx; - else - shareCtx = NULL; - fmesa->glCtx = _mesa_create_context(mesaVis, shareCtx, - &functions, fmesa); - if (!fmesa->glCtx) { - FREE(fmesa); - return GL_FALSE; - } - driContextPriv->driverPrivate = fmesa; - ctx = fmesa->glCtx; - - sPriv = driContextPriv->driScreenPriv; - ffbScreen = (ffbScreenPrivate *) sPriv->private; - - /* Dri stuff. */ - fmesa->hHWContext = driContextPriv->hHWContext; - fmesa->driFd = sPriv->fd; - fmesa->driHwLock = &sPriv->pSAREA->lock; - - fmesa->ffbScreen = ffbScreen; - fmesa->driScreen = sPriv; - fmesa->ffb_sarea = FFB_DRISHARE(sPriv->pSAREA); - - /* Register and framebuffer hw pointers. */ - fmesa->regs = ffbScreen->regs; - fmesa->sfb32 = ffbScreen->sfb32; - - ffbDDInitContextHwState(ctx); - - /* Default clear and depth colors. */ - { - GLubyte r = (GLint) (ctx->Color.ClearColor[0] * 255.0F); - GLubyte g = (GLint) (ctx->Color.ClearColor[1] * 255.0F); - GLubyte b = (GLint) (ctx->Color.ClearColor[2] * 255.0F); - - fmesa->clear_pixel = ((r << 0) | - (g << 8) | - (b << 16)); - } - fmesa->clear_depth = Z_FROM_MESA(ctx->Depth.Clear * 4294967295.0f); - fmesa->clear_stencil = ctx->Stencil.Clear & 0xf; - - /* No wide points. */ - ctx->Const.MinPointSize = 1.0; - ctx->Const.MinPointSizeAA = 1.0; - ctx->Const.MaxPointSize = 1.0; - ctx->Const.MaxPointSizeAA = 1.0; - - /* Disable wide lines as we can't antialias them correctly in - * hardware. - */ - ctx->Const.MinLineWidth = 1.0; - ctx->Const.MinLineWidthAA = 1.0; - ctx->Const.MaxLineWidth = 1.0; - ctx->Const.MaxLineWidthAA = 1.0; - ctx->Const.LineWidthGranularity = 1.0; - - /* Instead of having GCC emit these constants a zillion times - * everywhere in the driver, put them here. - */ - fmesa->ffb_2_30_fixed_scale = __FFB_2_30_FIXED_SCALE; - fmesa->ffb_one_over_2_30_fixed_scale = (1.0 / __FFB_2_30_FIXED_SCALE); - fmesa->ffb_16_16_fixed_scale = __FFB_16_16_FIXED_SCALE; - fmesa->ffb_one_over_16_16_fixed_scale = (1.0 / __FFB_16_16_FIXED_SCALE); - fmesa->ffb_ubyte_color_scale = 255.0f; - fmesa->ffb_zero = 0.0f; - - fmesa->debugFallbacks = GL_FALSE; - debug = getenv("LIBGL_DEBUG"); - if (debug && strstr(debug, "fallbacks")) - fmesa->debugFallbacks = GL_TRUE; - - /* Initialize the software rasterizer and helper modules. */ - _swrast_CreateContext( ctx ); - _ac_CreateContext( ctx ); - _tnl_CreateContext( ctx ); - _swsetup_CreateContext( ctx ); - - /* All of this need only be done once for a new context. */ - /* XXX these should be moved right after the - * _mesa_init_driver_functions() call above. - */ - ffbDDExtensionsInit(ctx); - ffbDDInitDriverFuncs(ctx); - ffbDDInitStateFuncs(ctx); - ffbDDInitRenderFuncs(ctx); - /*ffbDDInitTexFuncs(ctx); not needed */ - ffbDDInitBitmapFuncs(ctx); - ffbInitVB(ctx); - -#if 0 - ffbInitTnlModule(ctx); -#endif - - _tnl_destroy_pipeline(ctx); - _tnl_install_pipeline(ctx, ffb_pipeline); - - return GL_TRUE; -} - -static void -ffbDestroyContext(__DRIcontextPrivate *driContextPriv) -{ - ffbContextPtr fmesa = (ffbContextPtr) driContextPriv->driverPrivate; - - if (fmesa) { - ffbFreeVB(fmesa->glCtx); - - _swsetup_DestroyContext( fmesa->glCtx ); - _tnl_DestroyContext( fmesa->glCtx ); - _ac_DestroyContext( fmesa->glCtx ); - _swrast_DestroyContext( fmesa->glCtx ); - - /* free the Mesa context */ - fmesa->glCtx->DriverCtx = NULL; - _mesa_destroy_context(fmesa->glCtx); - - FREE(fmesa); - } -} - -/* Create and initialize the Mesa and driver specific pixmap buffer data */ -static GLboolean -ffbCreateBuffer(__DRIscreenPrivate *driScrnPriv, - __DRIdrawablePrivate *driDrawPriv, - const __GLcontextModes *mesaVis, - GLboolean isPixmap ) -{ - /* Mesa checks for pitch > 0, but ffb doesn't use pitches */ - int bogusPitch = 1; - int bpp = 4; /* we've always got a 32bpp framebuffer */ - int offset = 0; /* always at 0 for offset */ - - if (isPixmap) { - return GL_FALSE; /* not implemented */ - } else { - GLboolean swStencil = (mesaVis->stencilBits > 0 && - mesaVis->depthBits != 24); -#if 0 - driDrawPriv->driverPrivate = (void *) - _mesa_create_framebuffer(mesaVis, - GL_FALSE, /* software depth buffer? */ - mesaVis->stencilBits > 0, - mesaVis->accumRedBits > 0, - mesaVis->alphaBits > 0); -#else - struct gl_framebuffer *fb = _mesa_create_framebuffer(mesaVis); - - { - driRenderbuffer *frontRb - = driNewRenderbuffer(GL_RGBA, bpp, offset, bogusPitch); - ffbSetSpanFunctions(frontRb, mesaVis); - _mesa_add_renderbuffer(fb, BUFFER_FRONT_LEFT, &frontRb->Base); - } - - if (mesaVis->doubleBufferMode) { - driRenderbuffer *backRb - = driNewRenderbuffer(GL_RGBA, bpp, offset, bogusPitch); - ffbSetSpanFunctions(backRb, mesaVis); - _mesa_add_renderbuffer(fb, BUFFER_BACK_LEFT, &backRb->Base); - } - - if (mesaVis->depthBits == 16) { - driRenderbuffer *depthRb - = driNewRenderbuffer(GL_DEPTH_COMPONENT16, bpp, offset, bogusPitch); - ffbSetDepthFunctions(depthRb, mesaVis); - _mesa_add_renderbuffer(fb, BUFFER_DEPTH, &depthRb->Base); - } - - if (mesaVis->stencilBits > 0 && !swStencil) { - driRenderbuffer *stencilRb - = driNewRenderbuffer(GL_STENCIL_INDEX8_EXT, bpp, offset,bogusPitch); - ffbSetStencilFunctions(stencilRb, mesaVis); - _mesa_add_renderbuffer(fb, BUFFER_STENCIL, &stencilRb->Base); - } - - _mesa_add_soft_renderbuffers(fb, - GL_FALSE, /* color */ - GL_FALSE, /* depth */ - swStencil, - mesaVis->accumRedBits > 0, - GL_FALSE, /* alpha */ - GL_FALSE /* aux */); - driDrawPriv->driverPrivate = (void *) fb; -#endif - return (driDrawPriv->driverPrivate != NULL); - } -} - - -static void -ffbDestroyBuffer(__DRIdrawablePrivate *driDrawPriv) -{ - _mesa_destroy_framebuffer((GLframebuffer *) (driDrawPriv->driverPrivate)); -} - - -#define USE_FAST_SWAP - -static void -ffbSwapBuffers( __DRIdrawablePrivate *dPriv ) -{ - ffbContextPtr fmesa = (ffbContextPtr) dPriv->driContextPriv->driverPrivate; - unsigned int fbc, wid, wid_reg_val, dac_db_bit; - unsigned int shadow_dac_addr, active_dac_addr; - ffb_fbcPtr ffb; - ffb_dacPtr dac; - - if (fmesa == NULL || - fmesa->glCtx->Visual.doubleBufferMode == 0) - return; - - /* Flush pending rendering commands */ - _mesa_notifySwapBuffers(fmesa->glCtx); - - ffb = fmesa->regs; - dac = fmesa->ffbScreen->dac; - - fbc = fmesa->fbc; - wid = fmesa->wid; - - /* Swap the buffer we render into and read pixels from. */ - fmesa->back_buffer ^= 1; - - /* If we are writing into both buffers, don't mess with - * the WB setting. - */ - if ((fbc & FFB_FBC_WB_AB) != FFB_FBC_WB_AB) { - if ((fbc & FFB_FBC_WB_A) != 0) - fbc = (fbc & ~FFB_FBC_WB_A) | FFB_FBC_WB_B; - else - fbc = (fbc & ~FFB_FBC_WB_B) | FFB_FBC_WB_A; - } - - /* But either way, we must flip the read buffer setting. */ - if ((fbc & FFB_FBC_RB_A) != 0) - fbc = (fbc & ~FFB_FBC_RB_A) | FFB_FBC_RB_B; - else - fbc = (fbc & ~FFB_FBC_RB_B) | FFB_FBC_RB_A; - - LOCK_HARDWARE(fmesa); - - if (fmesa->fbc != fbc) { - FFBFifo(fmesa, 1); - ffb->fbc = fmesa->fbc = fbc; - fmesa->ffbScreen->rp_active = 1; - } - - /* And swap the buffer displayed in the WID. */ - if (fmesa->ffb_sarea->flags & FFB_DRI_PAC1) { - shadow_dac_addr = FFBDAC_PAC1_SPWLUT(wid); - active_dac_addr = FFBDAC_PAC1_APWLUT(wid); - dac_db_bit = FFBDAC_PAC1_WLUT_DB; - } else { - shadow_dac_addr = FFBDAC_PAC2_SPWLUT(wid); - active_dac_addr = FFBDAC_PAC2_APWLUT(wid); - dac_db_bit = FFBDAC_PAC2_WLUT_DB; - } - - FFBWait(fmesa, ffb); - - wid_reg_val = DACCFG_READ(dac, active_dac_addr); - if (fmesa->back_buffer == 0) - wid_reg_val |= dac_db_bit; - else - wid_reg_val &= ~dac_db_bit; -#ifdef USE_FAST_SWAP - DACCFG_WRITE(dac, active_dac_addr, wid_reg_val); -#else - DACCFG_WRITE(dac, shadow_dac_addr, wid_reg_val); - - /* Schedule the window transfer. */ - DACCFG_WRITE(dac, FFBDAC_CFG_WTCTRL, - (FFBDAC_CFG_WTCTRL_TCMD | FFBDAC_CFG_WTCTRL_TE)); - - { - int limit = 1000000; - while (limit--) { - unsigned int wtctrl = DACCFG_READ(dac, FFBDAC_CFG_WTCTRL); - - if ((wtctrl & FFBDAC_CFG_WTCTRL_DS) == 0) - break; - } - } -#endif - - UNLOCK_HARDWARE(fmesa); -} - -static void ffb_init_wid(ffbContextPtr fmesa, unsigned int wid) -{ - ffb_dacPtr dac = fmesa->ffbScreen->dac; - unsigned int wid_reg_val, dac_db_bit, active_dac_addr; - unsigned int shadow_dac_addr; - - if (fmesa->ffb_sarea->flags & FFB_DRI_PAC1) { - shadow_dac_addr = FFBDAC_PAC1_SPWLUT(wid); - active_dac_addr = FFBDAC_PAC1_APWLUT(wid); - dac_db_bit = FFBDAC_PAC1_WLUT_DB; - } else { - shadow_dac_addr = FFBDAC_PAC2_SPWLUT(wid); - active_dac_addr = FFBDAC_PAC2_APWLUT(wid); - dac_db_bit = FFBDAC_PAC2_WLUT_DB; - } - - wid_reg_val = DACCFG_READ(dac, active_dac_addr); - wid_reg_val &= ~dac_db_bit; -#ifdef USE_FAST_SWAP - DACCFG_WRITE(dac, active_dac_addr, wid_reg_val); -#else - DACCFG_WRITE(dac, shadow_dac_addr, wid_reg_val); - - /* Schedule the window transfer. */ - DACCFG_WRITE(dac, FFBDAC_CFG_WTCTRL, - (FFBDAC_CFG_WTCTRL_TCMD | FFBDAC_CFG_WTCTRL_TE)); - - { - int limit = 1000000; - while (limit--) { - unsigned int wtctrl = DACCFG_READ(dac, FFBDAC_CFG_WTCTRL); - - if ((wtctrl & FFBDAC_CFG_WTCTRL_DS) == 0) - break; - } - } -#endif -} - -/* Force the context `c' to be the current context and associate with it - buffer `b' */ -static GLboolean -ffbMakeCurrent(__DRIcontextPrivate *driContextPriv, - __DRIdrawablePrivate *driDrawPriv, - __DRIdrawablePrivate *driReadPriv) -{ - if (driContextPriv) { - ffbContextPtr fmesa = (ffbContextPtr) driContextPriv->driverPrivate; - int first_time; - - fmesa->driDrawable = driDrawPriv; - - _mesa_make_current(fmesa->glCtx, - (GLframebuffer *) driDrawPriv->driverPrivate, - (GLframebuffer *) driReadPriv->driverPrivate); - - first_time = 0; - if (fmesa->wid == ~0) { - first_time = 1; - if (getenv("LIBGL_SOFTWARE_RENDERING")) - FALLBACK( fmesa->glCtx, FFB_BADATTR_SWONLY, GL_TRUE ); - } - - LOCK_HARDWARE(fmesa); - if (first_time) { - fmesa->wid = fmesa->ffb_sarea->wid_table[driDrawPriv->index]; - ffb_init_wid(fmesa, fmesa->wid); - } - - fmesa->state_dirty |= FFB_STATE_ALL; - fmesa->state_fifo_ents = fmesa->state_all_fifo_ents; - ffbSyncHardware(fmesa); - UNLOCK_HARDWARE(fmesa); - - if (first_time) { - /* Also, at the first switch to a new context, - * we need to clear all the hw buffers. - */ - ffbDDClear(fmesa->glCtx, - (BUFFER_BIT_FRONT_LEFT | BUFFER_BIT_BACK_LEFT | - BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL), - 1, 0, 0, 0, 0); - } - } else { - _mesa_make_current(NULL, NULL, NULL); - } - - return GL_TRUE; -} - -/* Force the context `c' to be unbound from its buffer */ -static GLboolean -ffbUnbindContext(__DRIcontextPrivate *driContextPriv) -{ - return GL_TRUE; -} - -void ffbXMesaUpdateState(ffbContextPtr fmesa) -{ - __DRIdrawablePrivate *dPriv = fmesa->driDrawable; - __DRIscreenPrivate *sPriv = fmesa->driScreen; - int stamp = dPriv->lastStamp; - - DRI_VALIDATE_DRAWABLE_INFO(sPriv, dPriv); - - if (dPriv->lastStamp != stamp) { - GLcontext *ctx = fmesa->glCtx; - - ffbCalcViewport(ctx); - if (ctx->Polygon.StippleFlag) - ffbXformAreaPattern(fmesa, - (const GLubyte *)ctx->PolygonStipple); - } -} - -static const struct __DriverAPIRec ffbAPI = { - .InitDriver = ffbInitDriver, - .DestroyScreen = ffbDestroyScreen, - .CreateContext = ffbCreateContext, - .DestroyContext = ffbDestroyContext, - .CreateBuffer = ffbCreateBuffer, - .DestroyBuffer = ffbDestroyBuffer, - .SwapBuffers = ffbSwapBuffers, - .MakeCurrent = ffbMakeCurrent, - .UnbindContext = ffbUnbindContext, - .GetSwapInfo = NULL, - .GetMSC = NULL, - .WaitForMSC = NULL, - .WaitForSBC = NULL, - .SwapBuffersMSC = NULL -}; - - -static __GLcontextModes * -ffbFillInModes( unsigned pixel_bits, unsigned depth_bits, - unsigned stencil_bits, GLboolean have_back_buffer ) -{ - __GLcontextModes * modes; - __GLcontextModes * m; - unsigned num_modes; - unsigned depth_buffer_factor; - unsigned back_buffer_factor; - GLenum fb_format; - GLenum fb_type; - - /* GLX_SWAP_COPY_OML is only supported because the FFB driver doesn't - * support pageflipping at all. - */ - static const GLenum back_buffer_modes[] = { - GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML - }; - - u_int8_t depth_bits_array[3]; - u_int8_t stencil_bits_array[3]; - - - depth_bits_array[0] = 0; - depth_bits_array[1] = depth_bits; - depth_bits_array[2] = depth_bits; - - /* Just like with the accumulation buffer, always provide some modes - * with a stencil buffer. It will be a sw fallback, but some apps won't - * care about that. - */ - stencil_bits_array[0] = 0; - stencil_bits_array[1] = 0; - stencil_bits_array[2] = (stencil_bits == 0) ? 8 : stencil_bits; - - depth_buffer_factor = ((depth_bits != 0) || (stencil_bits != 0)) ? 3 : 1; - back_buffer_factor = (have_back_buffer) ? 3 : 1; - - num_modes = depth_buffer_factor * back_buffer_factor * 4; - - if ( pixel_bits == 16 ) { - fb_format = GL_RGB; - fb_type = GL_UNSIGNED_SHORT_5_6_5; - } - else { - fb_format = GL_BGRA; - fb_type = GL_UNSIGNED_INT_8_8_8_8_REV; - } - - modes = (*dri_interface->createContextModes)( num_modes, sizeof( __GLcontextModes ) ); - m = modes; - if ( ! driFillInModes( & m, fb_format, fb_type, - depth_bits_array, stencil_bits_array, depth_buffer_factor, - back_buffer_modes, back_buffer_factor, - GLX_TRUE_COLOR ) ) { - fprintf( stderr, "[%s:%u] Error creating FBConfig!\n", - __func__, __LINE__ ); - return NULL; - } - if ( ! driFillInModes( & m, fb_format, fb_type, - depth_bits_array, stencil_bits_array, depth_buffer_factor, - back_buffer_modes, back_buffer_factor, - GLX_DIRECT_COLOR ) ) { - fprintf( stderr, "[%s:%u] Error creating FBConfig!\n", - __func__, __LINE__ ); - return NULL; - } - - - /* Mark the visual as slow if there are "fake" stencil bits. - */ - for ( m = modes ; m != NULL ; m = m->next ) { - if ( (m->stencilBits != 0) && (m->stencilBits != stencil_bits) ) { - m->visualRating = GLX_SLOW_CONFIG; - } - } - - return modes; -} - - -/** - * This is the bootstrap function for the driver. libGL supplies all of the - * requisite information about the system, and the driver initializes itself. - * This routine also fills in the linked list pointed to by \c driver_modes - * with the \c __GLcontextModes that the driver can support for windows or - * pbuffers. - * - * \return A pointer to a \c __DRIscreenPrivate on success, or \c NULL on - * failure. - */ -PUBLIC -void * __driCreateNewScreen_20050727( __DRInativeDisplay *dpy, int scrn, __DRIscreen *psc, - const __GLcontextModes * modes, - const __DRIversion * ddx_version, - const __DRIversion * dri_version, - const __DRIversion * drm_version, - const __DRIframebuffer * frame_buffer, - drmAddress pSAREA, int fd, - int internal_api_version, - const __DRIinterfaceMethods * interface, - __GLcontextModes ** driver_modes ) - -{ - __DRIscreenPrivate *psp; - static const __DRIversion ddx_expected = { 0, 1, 1 }; - static const __DRIversion dri_expected = { 4, 0, 0 }; - static const __DRIversion drm_expected = { 0, 0, 1 }; - - dri_interface = interface; - - if ( ! driCheckDriDdxDrmVersions2( "ffb", - dri_version, & dri_expected, - ddx_version, & ddx_expected, - drm_version, & drm_expected ) ) { - return NULL; - } - - psp = __driUtilCreateNewScreen(dpy, scrn, psc, NULL, - ddx_version, dri_version, drm_version, - frame_buffer, pSAREA, fd, - internal_api_version, &ffbAPI); - if ( psp != NULL ) { - *driver_modes = ffbFillInModes( 32, 16, 0, GL_TRUE ); - } - - return (void *) psp; -} |