diff options
Diffstat (limited to 'src/mesa/drivers/dri/fb/fb_dri.c')
| -rw-r--r-- | src/mesa/drivers/dri/fb/fb_dri.c | 794 |
1 files changed, 0 insertions, 794 deletions
diff --git a/src/mesa/drivers/dri/fb/fb_dri.c b/src/mesa/drivers/dri/fb/fb_dri.c deleted file mode 100644 index f37241dd69..0000000000 --- a/src/mesa/drivers/dri/fb/fb_dri.c +++ /dev/null @@ -1,794 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.3 - * - * Copyright (C) 1999-2005 Brian Paul 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 - * 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 - * BRIAN PAUL 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. - */ - -/* Minimal swrast-based dri loadable driver. - * - * Todo: - * -- Use malloced (rather than framebuffer) memory for backbuffer - * -- 32bpp is hardwared -- fix - * - * NOTES: - * -- No mechanism for cliprects or resize notification -- - * assumes this is a fullscreen device. - * -- No locking -- assumes this is the only driver accessing this - * device. - * -- Doesn't (yet) make use of any acceleration or other interfaces - * provided by fb. Would be entirely happy working against any - * fullscreen interface. - * -- HOWEVER: only a small number of pixelformats are supported, and - * the mechanism for choosing between them makes some assumptions - * that may not be valid everywhere. - */ - -#include "driver.h" -#include "drm.h" -#include "utils.h" -#include "drirenderbuffer.h" - -#include "buffers.h" -#include "main/extensions.h" -#include "main/framebuffer.h" -#include "main/renderbuffer.h" -#include "vbo/vbo.h" -#include "swrast/swrast.h" -#include "swrast_setup/swrast_setup.h" -#include "tnl/tnl.h" -#include "tnl/tcontext.h" -#include "tnl/t_pipeline.h" -#include "drivers/common/driverfuncs.h" - -void fbSetSpanFunctions(driRenderbuffer *drb, const GLvisual *vis); - -typedef struct { - GLcontext *glCtx; /* Mesa context */ - - struct { - __DRIcontext *context; - __DRIscreen *screen; - __DRIdrawable *drawable; /* drawable bound to this ctx */ - } dri; - -} fbContext, *fbContextPtr; - -#define FB_CONTEXT(ctx) ((fbContextPtr)(ctx->DriverCtx)) - - -static const GLubyte * -get_string(GLcontext *ctx, GLenum pname) -{ - (void) ctx; - switch (pname) { - case GL_RENDERER: - return (const GLubyte *) "Mesa dumb framebuffer"; - default: - return NULL; - } -} - - -static void -update_state( GLcontext *ctx, GLuint new_state ) -{ - /* not much to do here - pass it on */ - _swrast_InvalidateState( ctx, new_state ); - _swsetup_InvalidateState( ctx, new_state ); - _vbo_InvalidateState( ctx, new_state ); - _tnl_InvalidateState( ctx, new_state ); -} - - -/** - * Called by ctx->Driver.GetBufferSize from in core Mesa to query the - * current framebuffer size. - */ -static void -get_buffer_size( GLframebuffer *buffer, GLuint *width, GLuint *height ) -{ - GET_CURRENT_CONTEXT(ctx); - fbContextPtr fbmesa = FB_CONTEXT(ctx); - - *width = fbmesa->dri.drawable->w; - *height = fbmesa->dri.drawable->h; -} - - -static void -updateFramebufferSize(GLcontext *ctx) -{ - fbContextPtr fbmesa = FB_CONTEXT(ctx); - struct gl_framebuffer *fb = ctx->WinSysDrawBuffer; - if (fbmesa->dri.drawable->w != fb->Width || - fbmesa->dri.drawable->h != fb->Height) { - driUpdateFramebufferSize(ctx, fbmesa->dri.drawable); - } -} - -static void -viewport(GLcontext *ctx, GLint x, GLint y, GLsizei w, GLsizei h) -{ - /* XXX this should be called after we acquire the DRI lock, not here */ - updateFramebufferSize(ctx); -} - - -static void -init_core_functions( struct dd_function_table *functions ) -{ - functions->GetString = get_string; - functions->UpdateState = update_state; - functions->GetBufferSize = get_buffer_size; - functions->Viewport = viewport; - - functions->Clear = _swrast_Clear; /* could accelerate with blits */ -} - - -/* - * Generate code for span functions. - */ - -/* 24-bit BGR */ -#define NAME(PREFIX) PREFIX##_B8G8R8 -#define FORMAT GL_RGBA8 -#define SPAN_VARS \ - driRenderbuffer *drb = (driRenderbuffer *) rb; -#define INIT_PIXEL_PTR(P, X, Y) \ - GLubyte *P = (GLubyte *)drb->Base.Data + (drb->Base.Height - (Y)) * drb->pitch + (X) * 3; -#define INC_PIXEL_PTR(P) P += 3 -#define STORE_PIXEL(DST, X, Y, VALUE) \ - DST[0] = VALUE[BCOMP]; \ - DST[1] = VALUE[GCOMP]; \ - DST[2] = VALUE[RCOMP] -#define FETCH_PIXEL(DST, SRC) \ - DST[RCOMP] = SRC[2]; \ - DST[GCOMP] = SRC[1]; \ - DST[BCOMP] = SRC[0]; \ - DST[ACOMP] = 0xff - -#include "swrast/s_spantemp.h" - - -/* 32-bit BGRA */ -#define NAME(PREFIX) PREFIX##_B8G8R8A8 -#define FORMAT GL_RGBA8 -#define SPAN_VARS \ - driRenderbuffer *drb = (driRenderbuffer *) rb; -#define INIT_PIXEL_PTR(P, X, Y) \ - GLubyte *P = (GLubyte *)drb->Base.Data + (drb->Base.Height - (Y)) * drb->pitch + (X) * 4; -#define INC_PIXEL_PTR(P) P += 4 -#define STORE_PIXEL(DST, X, Y, VALUE) \ - DST[0] = VALUE[BCOMP]; \ - DST[1] = VALUE[GCOMP]; \ - DST[2] = VALUE[RCOMP]; \ - DST[3] = VALUE[ACOMP] -#define STORE_PIXEL_RGB(DST, X, Y, VALUE) \ - DST[0] = VALUE[BCOMP]; \ - DST[1] = VALUE[GCOMP]; \ - DST[2] = VALUE[RCOMP]; \ - DST[3] = 0xff -#define FETCH_PIXEL(DST, SRC) \ - DST[RCOMP] = SRC[2]; \ - DST[GCOMP] = SRC[1]; \ - DST[BCOMP] = SRC[0]; \ - DST[ACOMP] = SRC[3] - -#include "swrast/s_spantemp.h" - - -/* 16-bit BGR (XXX implement dithering someday) */ -#define NAME(PREFIX) PREFIX##_B5G6R5 -#define FORMAT GL_RGBA8 -#define SPAN_VARS \ - driRenderbuffer *drb = (driRenderbuffer *) rb; -#define INIT_PIXEL_PTR(P, X, Y) \ - GLushort *P = (GLushort *)drb->Base.Data + (drb->Base.Height - (Y)) * drb->pitch + (X) * 2; -#define INC_PIXEL_PTR(P) P += 1 -#define STORE_PIXEL(DST, X, Y, VALUE) \ - DST[0] = ( (((VALUE[RCOMP]) & 0xf8) << 8) | (((VALUE[GCOMP]) & 0xfc) << 3) | ((VALUE[BCOMP]) >> 3) ) -#define FETCH_PIXEL(DST, SRC) \ - DST[RCOMP] = ( (((SRC[0]) >> 8) & 0xf8) | (((SRC[0]) >> 11) & 0x7) ); \ - DST[GCOMP] = ( (((SRC[0]) >> 3) & 0xfc) | (((SRC[0]) >> 5) & 0x3) ); \ - DST[BCOMP] = ( (((SRC[0]) << 3) & 0xf8) | (((SRC[0]) ) & 0x7) ); \ - DST[ACOMP] = 0xff - -#include "swrast/s_spantemp.h" - - -/* 15-bit BGR (XXX implement dithering someday) */ -#define NAME(PREFIX) PREFIX##_B5G5R5 -#define FORMAT GL_RGBA8 -#define SPAN_VARS \ - driRenderbuffer *drb = (driRenderbuffer *) rb; -#define INIT_PIXEL_PTR(P, X, Y) \ - GLushort *P = (GLushort *)drb->Base.Data + (drb->Base.Height - (Y)) * drb->pitch + (X) * 2; -#define INC_PIXEL_PTR(P) P += 1 -#define STORE_PIXEL(DST, X, Y, VALUE) \ - DST[0] = ( (((VALUE[RCOMP]) & 0xf8) << 7) | (((VALUE[GCOMP]) & 0xf8) << 2) | ((VALUE[BCOMP]) >> 3) ) -#define FETCH_PIXEL(DST, SRC) \ - DST[RCOMP] = ( (((SRC[0]) >> 7) & 0xf8) | (((SRC[0]) >> 10) & 0x7) ); \ - DST[GCOMP] = ( (((SRC[0]) >> 2) & 0xf8) | (((SRC[0]) >> 5) & 0x7) ); \ - DST[BCOMP] = ( (((SRC[0]) << 3) & 0xf8) | (((SRC[0]) ) & 0x7) ); \ - DST[ACOMP] = 0xff - -#include "swrast/s_spantemp.h" - - -/* 8-bit color index */ -#define NAME(PREFIX) PREFIX##_CI8 -#define FORMAT GL_COLOR_INDEX8_EXT -#define SPAN_VARS \ - driRenderbuffer *drb = (driRenderbuffer *) rb; -#define INIT_PIXEL_PTR(P, X, Y) \ - GLubyte *P = (GLubyte *)drb->Base.Data + (drb->Base.Height - (Y)) * drb->pitch + (X); -#define INC_PIXEL_PTR(P) P += 1 -#define STORE_PIXEL(DST, X, Y, VALUE) \ - *DST = VALUE[0] -#define FETCH_PIXEL(DST, SRC) \ - DST = SRC[0] - -#include "swrast/s_spantemp.h" - - - -void -fbSetSpanFunctions(driRenderbuffer *drb, const GLvisual *vis) -{ - ASSERT(drb->Base.InternalFormat == GL_RGBA); - if (drb->Base.InternalFormat == GL_RGBA) { - if (vis->redBits == 5 && vis->greenBits == 6 && vis->blueBits == 5) { - drb->Base.GetRow = get_row_B5G6R5; - drb->Base.GetValues = get_values_B5G6R5; - drb->Base.PutRow = put_row_B5G6R5; - drb->Base.PutMonoRow = put_mono_row_B5G6R5; - drb->Base.PutRowRGB = put_row_rgb_B5G6R5; - drb->Base.PutValues = put_values_B5G6R5; - drb->Base.PutMonoValues = put_mono_values_B5G6R5; - } - else if (vis->redBits == 5 && vis->greenBits == 5 && vis->blueBits == 5) { - drb->Base.GetRow = get_row_B5G5R5; - drb->Base.GetValues = get_values_B5G5R5; - drb->Base.PutRow = put_row_B5G5R5; - drb->Base.PutMonoRow = put_mono_row_B5G5R5; - drb->Base.PutRowRGB = put_row_rgb_B5G5R5; - drb->Base.PutValues = put_values_B5G5R5; - drb->Base.PutMonoValues = put_mono_values_B5G5R5; - } - else if (vis->redBits == 8 && vis->greenBits == 8 && vis->blueBits == 8 - && vis->alphaBits == 8) { - drb->Base.GetRow = get_row_B8G8R8A8; - drb->Base.GetValues = get_values_B8G8R8A8; - drb->Base.PutRow = put_row_B8G8R8A8; - drb->Base.PutMonoRow = put_mono_row_B8G8R8A8; - drb->Base.PutRowRGB = put_row_rgb_B8G8R8A8; - drb->Base.PutValues = put_values_B8G8R8A8; - drb->Base.PutMonoValues = put_mono_values_B8G8R8A8; - } - else if (vis->redBits == 8 && vis->greenBits == 8 && vis->blueBits == 8 - && vis->alphaBits == 0) { - drb->Base.GetRow = get_row_B8G8R8; - drb->Base.GetValues = get_values_B8G8R8; - drb->Base.PutRow = put_row_B8G8R8; - drb->Base.PutMonoRow = put_mono_row_B8G8R8; - drb->Base.PutRowRGB = put_row_rgb_B8G8R8; - drb->Base.PutValues = put_values_B8G8R8; - drb->Base.PutMonoValues = put_mono_values_B8G8R8; - } - else if (vis->indexBits == 8) { - drb->Base.GetRow = get_row_CI8; - drb->Base.GetValues = get_values_CI8; - drb->Base.PutRow = put_row_CI8; - drb->Base.PutMonoRow = put_mono_row_CI8; - drb->Base.PutValues = put_values_CI8; - drb->Base.PutMonoValues = put_mono_values_CI8; - } - } - else { - /* hardware z/stencil/etc someday */ - } -} - - - -/* Initialize the driver specific screen private data. - */ -static GLboolean -fbInitDriver( __DRIscreen *sPriv ) -{ - sPriv->private = NULL; - return GL_TRUE; -} - -static void -fbDestroyScreen( __DRIscreen *sPriv ) -{ -} - - -/* Create the device specific context. - */ -static GLboolean -fbCreateContext( const __GLcontextModes *glVisual, - __DRIcontext *driContextPriv, - void *sharedContextPrivate) -{ - fbContextPtr fbmesa; - GLcontext *ctx, *shareCtx; - struct dd_function_table functions; - - assert(glVisual); - assert(driContextPriv); - - /* Allocate the Fb context */ - fbmesa = (fbContextPtr) _mesa_calloc( sizeof(*fbmesa) ); - if ( !fbmesa ) - return GL_FALSE; - - /* Init default driver functions then plug in our FBdev-specific functions - */ - _mesa_init_driver_functions(&functions); - init_core_functions(&functions); - - /* Allocate the Mesa context */ - if (sharedContextPrivate) - shareCtx = ((fbContextPtr) sharedContextPrivate)->glCtx; - else - shareCtx = NULL; - - ctx = fbmesa->glCtx = _mesa_create_context(glVisual, shareCtx, - &functions, (void *) fbmesa); - if (!fbmesa->glCtx) { - _mesa_free(fbmesa); - return GL_FALSE; - } - driContextPriv->driverPrivate = fbmesa; - - /* Create module contexts */ - _swrast_CreateContext( ctx ); - _vbo_CreateContext( ctx ); - _tnl_CreateContext( ctx ); - _swsetup_CreateContext( ctx ); - _swsetup_Wakeup( ctx ); - - - /* use default TCL pipeline */ - { - TNLcontext *tnl = TNL_CONTEXT(ctx); - tnl->Driver.RunPipeline = _tnl_run_pipeline; - } - - _mesa_enable_sw_extensions(ctx); - - return GL_TRUE; -} - - -static void -fbDestroyContext( __DRIcontext *driContextPriv ) -{ - GET_CURRENT_CONTEXT(ctx); - fbContextPtr fbmesa = (fbContextPtr) driContextPriv->driverPrivate; - fbContextPtr current = ctx ? FB_CONTEXT(ctx) : NULL; - - /* check if we're deleting the currently bound context */ - if (fbmesa == current) { - _mesa_make_current(NULL, NULL, NULL); - } - - /* Free fb context resources */ - if ( fbmesa ) { - _swsetup_DestroyContext( fbmesa->glCtx ); - _tnl_DestroyContext( fbmesa->glCtx ); - _vbo_DestroyContext( fbmesa->glCtx ); - _swrast_DestroyContext( fbmesa->glCtx ); - - /* free the Mesa context */ - fbmesa->glCtx->DriverCtx = NULL; - _mesa_destroy_context( fbmesa->glCtx ); - - _mesa_free( fbmesa ); - } -} - - -/* Create and initialize the Mesa and driver specific pixmap buffer - * data. - */ -static GLboolean -fbCreateBuffer( __DRIscreen *driScrnPriv, - __DRIdrawable *driDrawPriv, - const __GLcontextModes *mesaVis, - GLboolean isPixmap ) -{ - struct gl_framebuffer *mesa_framebuffer; - - if (isPixmap) { - return GL_FALSE; /* not implemented */ - } - else { - const GLboolean swDepth = mesaVis->depthBits > 0; - const GLboolean swAlpha = mesaVis->alphaBits > 0; - const GLboolean swAccum = mesaVis->accumRedBits > 0; - const GLboolean swStencil = mesaVis->stencilBits > 0; - - mesa_framebuffer = _mesa_create_framebuffer(mesaVis); - if (!mesa_framebuffer) - return 0; - - /* XXX double-check these parameters (bpp vs cpp, etc) */ - { - driRenderbuffer *drb = driNewRenderbuffer(MESA_FORMAT_ARGB8888, - driScrnPriv->pFB, - driScrnPriv->fbBPP / 8, - driScrnPriv->fbOrigin, - driScrnPriv->fbStride, - driDrawPriv); - fbSetSpanFunctions(drb, mesaVis); - _mesa_add_renderbuffer(mesa_framebuffer, - BUFFER_FRONT_LEFT, &drb->Base); - } - if (mesaVis->doubleBufferMode) { - /* XXX what are the correct origin/stride values? */ - GLvoid *backBuf = _mesa_malloc(driScrnPriv->fbStride - * driScrnPriv->fbHeight); - driRenderbuffer *drb = driNewRenderbuffer(MESA_FORMAT_ARGB8888, - backBuf, - driScrnPriv->fbBPP /8, - driScrnPriv->fbOrigin, - driScrnPriv->fbStride, - driDrawPriv); - fbSetSpanFunctions(drb, mesaVis); - _mesa_add_renderbuffer(mesa_framebuffer, - BUFFER_BACK_LEFT, &drb->Base); - } - - _mesa_add_soft_renderbuffers(mesa_framebuffer, - GL_FALSE, /* color */ - swDepth, - swStencil, - swAccum, - swAlpha, /* or always zero? */ - GL_FALSE /* aux */); - - driDrawPriv->driverPrivate = mesa_framebuffer; - - return 1; - } -} - - -static void -fbDestroyBuffer(__DRIdrawable *driDrawPriv) -{ - _mesa_reference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)), NULL); -} - - - -/* If the backbuffer is on a videocard, this is extraordinarily slow! - */ -static void -fbSwapBuffers( __DRIdrawable *dPriv ) -{ - struct gl_framebuffer *mesa_framebuffer = (struct gl_framebuffer *)dPriv->driverPrivate; - struct gl_renderbuffer * front_renderbuffer = mesa_framebuffer->Attachment[BUFFER_FRONT_LEFT].Renderbuffer; - void *frontBuffer = front_renderbuffer->Data; - int currentPitch = ((driRenderbuffer *)front_renderbuffer)->pitch; - void *backBuffer = mesa_framebuffer->Attachment[BUFFER_BACK_LEFT].Renderbuffer->Data; - - if (dPriv->driContextPriv && dPriv->driContextPriv->driverPrivate) { - fbContextPtr fbmesa = (fbContextPtr) dPriv->driContextPriv->driverPrivate; - GLcontext *ctx = fbmesa->glCtx; - - if (ctx->Visual.doubleBufferMode) { - int i; - int offset = 0; - char *tmp = _mesa_malloc(currentPitch); - - _mesa_notifySwapBuffers( ctx ); /* flush pending rendering comands */ - - ASSERT(frontBuffer); - ASSERT(backBuffer); - - for (i = 0; i < dPriv->h; i++) { - _mesa_memcpy(tmp, (char *) backBuffer + offset, - currentPitch); - _mesa_memcpy((char *) frontBuffer + offset, tmp, - currentPitch); - offset += currentPitch; - } - - _mesa_free(tmp); - } - } - else { - /* XXX this shouldn't be an error but we can't handle it for now */ - _mesa_problem(NULL, "fbSwapBuffers: drawable has no context!\n"); - } -} - - -/* Force the context `c' to be the current context and associate with it - * buffer `b'. - */ -static GLboolean -fbMakeCurrent( __DRIcontext *driContextPriv, - __DRIdrawable *driDrawPriv, - __DRIdrawable *driReadPriv ) -{ - if ( driContextPriv ) { - fbContextPtr newFbCtx = - (fbContextPtr) driContextPriv->driverPrivate; - - newFbCtx->dri.drawable = driDrawPriv; - - _mesa_make_current( newFbCtx->glCtx, - driDrawPriv->driverPrivate, - driReadPriv->driverPrivate); - } else { - _mesa_make_current( NULL, NULL, NULL ); - } - - return GL_TRUE; -} - - -/* Force the context `c' to be unbound from its buffer. - */ -static GLboolean -fbUnbindContext( __DRIcontext *driContextPriv ) -{ - return GL_TRUE; -} - -static struct __DriverAPIRec fbAPI = { - .InitDriver = fbInitDriver, - .DestroyScreen = fbDestroyScreen, - .CreateContext = fbCreateContext, - .DestroyContext = fbDestroyContext, - .CreateBuffer = fbCreateBuffer, - .DestroyBuffer = fbDestroyBuffer, - .SwapBuffers = fbSwapBuffers, - .MakeCurrent = fbMakeCurrent, - .UnbindContext = fbUnbindContext, -}; - - - -static int -__driValidateMode(const DRIDriverContext *ctx ) -{ - return 1; -} - -static int -__driInitFBDev( struct DRIDriverContextRec *ctx ) -{ - /* Note that drmOpen will try to load the kernel module, if needed. */ - /* we need a fbdev drm driver - it will only track maps */ - ctx->drmFD = drmOpen("radeon", NULL ); - if (ctx->drmFD < 0) { - fprintf(stderr, "[drm] drmOpen failed\n"); - return 0; - } - - ctx->shared.SAREASize = SAREA_MAX; - - if (drmAddMap( ctx->drmFD, - 0, - ctx->shared.SAREASize, - DRM_SHM, - DRM_CONTAINS_LOCK, - &ctx->shared.hSAREA) < 0) - { - fprintf(stderr, "[drm] drmAddMap failed\n"); - return 0; - } - fprintf(stderr, "[drm] added %d byte SAREA at 0x%08lx\n", - ctx->shared.SAREASize, - (unsigned long) ctx->shared.hSAREA); - - if (drmMap( ctx->drmFD, - ctx->shared.hSAREA, - ctx->shared.SAREASize, - (drmAddressPtr)(&ctx->pSAREA)) < 0) - { - fprintf(stderr, "[drm] drmMap failed\n"); - return 0; - } - memset(ctx->pSAREA, 0, ctx->shared.SAREASize); - fprintf(stderr, "[drm] mapped SAREA 0x%08lx to %p, size %d\n", - (unsigned long) ctx->shared.hSAREA, ctx->pSAREA, - ctx->shared.SAREASize); - - /* Need to AddMap the framebuffer and mmio regions here: - */ - if (drmAddMap( ctx->drmFD, - (drm_handle_t)ctx->FBStart, - ctx->FBSize, - DRM_FRAME_BUFFER, -#ifndef _EMBEDDED - 0, -#else - DRM_READ_ONLY, -#endif - &ctx->shared.hFrameBuffer) < 0) - { - fprintf(stderr, "[drm] drmAddMap framebuffer failed\n"); - return 0; - } - - fprintf(stderr, "[drm] framebuffer handle = 0x%08lx\n", - (unsigned long) ctx->shared.hFrameBuffer); - - return 1; -} - -static void -__driHaltFBDev( struct DRIDriverContextRec *ctx ) -{ -} - -struct DRIDriverRec __driDriver = { - __driValidateMode, - __driValidateMode, - __driInitFBDev, - __driHaltFBDev -}; - -static __GLcontextModes * -fbFillInModes( __DRIscreen *psp, - 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; - - /* Right now GLX_SWAP_COPY_OML isn't supported, but it would be easy - * enough to add support. Basically, if a context is created with an - * fbconfig where the swap method is GLX_SWAP_COPY_OML, pageflipping - * will never be used. - */ - static const GLenum back_buffer_modes[] = { - GLX_NONE, GLX_SWAP_UNDEFINED_OML /*, GLX_SWAP_COPY_OML */ - }; - - uint8_t depth_bits_array[2]; - uint8_t stencil_bits_array[2]; - - - depth_bits_array[0] = depth_bits; - depth_bits_array[1] = 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] = (stencil_bits == 0) ? 8 : stencil_bits; - - depth_buffer_factor = ((depth_bits != 0) || (stencil_bits != 0)) ? 2 : 1; - back_buffer_factor = (have_back_buffer) ? 2 : 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_RGBA; - fb_type = GL_UNSIGNED_INT_8_8_8_8_REV; - } - - modes = (*psp->contextModes->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 __DRIscreen on success, or \c NULL on - * failure. - */ -PUBLIC -void * __driCreateNewScreen( __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, - __GLcontextModes ** driver_modes ) -{ - __DRIscreen *psp; - static const __DRIversion ddx_expected = { 4, 0, 0 }; - static const __DRIversion dri_expected = { 4, 0, 0 }; - static const __DRIversion drm_expected = { 1, 5, 0 }; - - - if ( ! driCheckDriDdxDrmVersions2( "fb", - 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, &fbAPI); - if ( psp != NULL ) { - *driver_modes = fbFillInModes( psp, psp->fbBPP, - (psp->fbBPP == 16) ? 16 : 24, - (psp->fbBPP == 16) ? 0 : 8, - 1); - } - - return (void *) psp; -} - -/* This is the table of extensions that the loader will dlsym() for. */ -PUBLIC const __DRIextension *__driDriverExtensions[] = { - &driCoreExtension.base, - &driLegacyExtension.base, - NULL -}; |