+++ /dev/null
-/*
- * 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) calloc(1, 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) {
- 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 );
-
- 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 = 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 = malloc(currentPitch);
-
- _mesa_notifySwapBuffers( ctx ); /* flush pending rendering comands */
-
- ASSERT(frontBuffer);
- ASSERT(backBuffer);
-
- for (i = 0; i < dPriv->h; i++) {
- memcpy(tmp, (char *) backBuffer + offset, currentPitch);
- memcpy((char *) frontBuffer + offset, tmp, currentPitch);
- offset += currentPitch;
- }
-
- 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
-};
projects / mesa.git / blobdiff