AMesaBuffer GLAPIENTRY AMesaCreateBuffer(AMesaVisual visual, BITMAP* bmp)
{
AMesaBuffer buffer;
/* Buffer and visual must share the same color depth */
if (bitmap_color_depth(bmp) != visual->Depth)
return NULL;
buffer = (AMesaBuffer) malloc(sizeof(struct amesa_buffer));
if (!buffer)
return NULL;
buffer->FrontBuffer = bmp;
buffer->BackBuffer = NULL;
buffer->Active = NULL;
buffer->ReadActive = NULL;
buffer->DepthBuffer = NULL;
if (visual->DBFlag) {
buffer->BackBuffer = create_bitmap_ex(visual->Depth, bmp->w, bmp->h);
if (!buffer->BackBuffer) {
free(buffer);
return NULL;
}
}
if (visual->GLVisual->depthBits > 0) {
buffer->DepthBuffer = create_zbuffer(bmp);
if (!buffer->DepthBuffer) {
if (buffer->BackBuffer)
destroy_bitmap(buffer->BackBuffer);
free(buffer);
return NULL;
}
set_zbuffer(buffer->DepthBuffer);
}
buffer->GLBuffer = _mesa_create_framebuffer(visual->GLVisual,
0, /*depth buffer is handled by Allegro */
visual->GLVisual->stencilBits > 0, /*software stencil buffer*/
visual->GLVisual->accumRedBits > 0,/*software accum buffer*/
GL_FALSE ); /*software alpha buffer*/
if (!buffer->GLBuffer) {
if (buffer->BackBuffer)
destroy_bitmap(buffer->BackBuffer);
if (buffer->DepthBuffer)
destroy_zbuffer(buffer->DepthBuffer);
free(buffer);
return NULL;
}
buffer->Width = bmp->w;
buffer->Height = bmp->h;
return buffer;
}
static GLboolean
CreateContext(void)
{
struct dd_function_table ddFuncs;
GLvisual *vis;
GLframebuffer *buf;
GLcontext *ctx;
CompilerContext *cc;
vis = _mesa_create_visual(GL_FALSE, GL_FALSE, /* RGB */
8, 8, 8, 8, /* color */
0, 0, /* z, stencil */
0, 0, 0, 0, 1); /* accum */
buf = _mesa_create_framebuffer(vis);
cc = calloc(1, sizeof(*cc));
if (!vis || !buf || !cc) {
if (vis)
_mesa_destroy_visual(vis);
if (buf)
_mesa_destroy_framebuffer(buf);
return GL_FALSE;
}
_mesa_init_driver_functions(&ddFuncs);
ddFuncs.GetString = NULL;/*get_string;*/
ddFuncs.UpdateState = UpdateState;
ddFuncs.GetBufferSize = NULL;
ctx = &cc->MesaContext;
_mesa_initialize_context(ctx, vis, NULL, &ddFuncs, cc);
_mesa_enable_sw_extensions(ctx);
if (!_swrast_CreateContext( ctx ) ||
!_vbo_CreateContext( ctx ) ||
!_tnl_CreateContext( ctx ) ||
!_swsetup_CreateContext( ctx )) {
_mesa_destroy_visual(vis);
_mesa_free_context_data(ctx);
free(cc);
return GL_FALSE;
}
TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline;
_swsetup_Wakeup( ctx );
/* Override the context's default pragma settings */
ctx->Shader.DefaultPragmas = Options.Pragmas;
_mesa_make_current(ctx, buf, buf);
return GL_TRUE;
}
static EGLSurface
fbCreatePbufferSurface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, const EGLint *attrib_list)
{
fbSurface *surf;
surf = (fbSurface *) calloc(1, sizeof(fbSurface));
if (!surf) {
return EGL_NO_SURFACE;
}
if (_eglInitPbufferSurface(&surf->Base, drv, dpy, config, attrib_list) == EGL_NO_SURFACE) {
free(surf);
return EGL_NO_SURFACE;
}
/* create software-based pbuffer */
{
GLcontext *ctx = NULL; /* this _should_ be OK */
GLvisual vis;
_EGLConfig *conf = _eglLookupConfig(drv, dpy, config);
assert(conf); /* bad config should be caught earlier */
_eglConfigToContextModesRec(conf, &vis);
surf->mesa_framebuffer = _mesa_create_framebuffer(&vis);
_mesa_add_soft_renderbuffers(surf->mesa_framebuffer,
GL_TRUE, /* color bufs */
vis.haveDepthBuffer,
vis.haveStencilBuffer,
vis.haveAccumBuffer,
GL_FALSE, /* alpha */
GL_FALSE /* aux */ );
/* set pbuffer/framebuffer size */
_mesa_resize_framebuffer(ctx, surf->mesa_framebuffer,
surf->Base.Width, surf->Base.Height);
}
return surf->Base.Handle;
}
/**
* Create a drawing surface which can be directly displayed on a screen.
*/
static EGLSurface
fbCreateScreenSurfaceMESA(_EGLDriver *drv, EGLDisplay dpy, EGLConfig cfg,
const EGLint *attrib_list)
{
_EGLConfig *config = _eglLookupConfig(drv, dpy, cfg);
fbDisplay *display = Lookup_fbDisplay(dpy);
fbSurface *surface;
EGLSurface surf;
GLvisual vis;
GLcontext *ctx = NULL; /* this should be OK */
int origin, bytesPerPixel;
int width, height, stride;
surface = (fbSurface *) malloc(sizeof(*surface));
if (!surface) {
return EGL_NO_SURFACE;
}
/* init base class, error check, etc. */
surf = _eglInitScreenSurface(&surface->Base, drv, dpy, cfg, attrib_list);
if (surf == EGL_NO_SURFACE) {
free(surface);
return EGL_NO_SURFACE;
}
/* convert EGLConfig to GLvisual */
_eglConfigToContextModesRec(config, &vis);
/* create Mesa framebuffer */
surface->mesa_framebuffer = _mesa_create_framebuffer(&vis);
if (!surface->mesa_framebuffer) {
free(surface);
_eglRemoveSurface(&surface->Base);
return EGL_NO_SURFACE;
}
width = surface->Base.Width;
height = surface->Base.Height;
bytesPerPixel = vis.rgbBits / 8;
stride = width * bytesPerPixel;
origin = 0;
/* front color renderbuffer */
{
driRenderbuffer *drb = driNewRenderbuffer(GL_RGBA, display->pFB,
bytesPerPixel,
origin, stride, NULL);
fbSetSpanFunctions(drb, &vis);
_mesa_add_renderbuffer(surface->mesa_framebuffer,
BUFFER_FRONT_LEFT, &drb->Base);
}
/* back color renderbuffer */
if (vis.doubleBufferMode) {
GLubyte *backBuf = _mesa_malloc(stride * height);
driRenderbuffer *drb = driNewRenderbuffer(GL_RGBA, backBuf,
bytesPerPixel,
origin, stride, NULL);
fbSetSpanFunctions(drb, &vis);
_mesa_add_renderbuffer(surface->mesa_framebuffer,
BUFFER_BACK_LEFT, &drb->Base);
}
/* other renderbuffers- software based */
_mesa_add_soft_renderbuffers(surface->mesa_framebuffer,
GL_FALSE, /* color */
vis.haveDepthBuffer,
vis.haveStencilBuffer,
vis.haveAccumBuffer,
GL_FALSE, /* alpha */
GL_FALSE /* aux */);
_mesa_resize_framebuffer(ctx, surface->mesa_framebuffer, width, height);
return surf;
}
/**
* New in Mesa 3.5
*
* Create context and specify size of ancillary buffers.
*/
GLAPI OSMesaContext GLAPIENTRY
OSMesaCreateContextExt( GLenum format, GLint depthBits, GLint stencilBits,
GLint accumBits, OSMesaContext sharelist )
{
OSMesaContext osmesa;
struct dd_function_table functions;
GLint rind, gind, bind, aind;
GLint redBits = 0, greenBits = 0, blueBits = 0, alphaBits =0;
rind = gind = bind = aind = 0;
if (format==OSMESA_RGBA) {
redBits = CHAN_BITS;
greenBits = CHAN_BITS;
blueBits = CHAN_BITS;
alphaBits = CHAN_BITS;
rind = 0;
gind = 1;
bind = 2;
aind = 3;
}
else if (format==OSMESA_BGRA) {
redBits = CHAN_BITS;
greenBits = CHAN_BITS;
blueBits = CHAN_BITS;
alphaBits = CHAN_BITS;
bind = 0;
gind = 1;
rind = 2;
aind = 3;
}
else if (format==OSMESA_ARGB) {
redBits = CHAN_BITS;
greenBits = CHAN_BITS;
blueBits = CHAN_BITS;
alphaBits = CHAN_BITS;
aind = 0;
rind = 1;
gind = 2;
bind = 3;
}
else if (format==OSMESA_RGB) {
redBits = CHAN_BITS;
greenBits = CHAN_BITS;
blueBits = CHAN_BITS;
alphaBits = 0;
rind = 0;
gind = 1;
bind = 2;
}
else if (format==OSMESA_BGR) {
redBits = CHAN_BITS;
greenBits = CHAN_BITS;
blueBits = CHAN_BITS;
alphaBits = 0;
rind = 2;
gind = 1;
bind = 0;
}
#if CHAN_TYPE == GL_UNSIGNED_BYTE
else if (format==OSMESA_RGB_565) {
redBits = 5;
greenBits = 6;
blueBits = 5;
alphaBits = 0;
rind = 0; /* not used */
gind = 0;
bind = 0;
}
#endif
else {
return NULL;
}
osmesa = (OSMesaContext) CALLOC_STRUCT(osmesa_context);
if (osmesa) {
osmesa->gl_visual = _mesa_create_visual( GL_FALSE, /* double buffer */
GL_FALSE, /* stereo */
redBits,
greenBits,
blueBits,
alphaBits,
depthBits,
stencilBits,
accumBits,
accumBits,
accumBits,
alphaBits ? accumBits : 0,
1 /* num samples */
);
if (!osmesa->gl_visual) {
free(osmesa);
return NULL;
}
/* Initialize device driver function table */
_mesa_init_driver_functions(&functions);
/* override with our functions */
functions.GetString = get_string;
functions.UpdateState = osmesa_update_state;
functions.GetBufferSize = NULL;
if (!_mesa_initialize_context(&osmesa->mesa,
API_OPENGL_COMPAT,
osmesa->gl_visual,
sharelist ? &sharelist->mesa
: (struct gl_context *) NULL,
&functions)) {
_mesa_destroy_visual( osmesa->gl_visual );
free(osmesa);
return NULL;
}
_mesa_enable_sw_extensions(&(osmesa->mesa));
_mesa_enable_1_3_extensions(&(osmesa->mesa));
_mesa_enable_1_4_extensions(&(osmesa->mesa));
_mesa_enable_1_5_extensions(&(osmesa->mesa));
_mesa_enable_2_0_extensions(&(osmesa->mesa));
_mesa_enable_2_1_extensions(&(osmesa->mesa));
osmesa->gl_buffer = _mesa_create_framebuffer(osmesa->gl_visual);
if (!osmesa->gl_buffer) {
_mesa_destroy_visual( osmesa->gl_visual );
_mesa_free_context_data( &osmesa->mesa );
free(osmesa);
return NULL;
}
/* Create depth/stencil/accum buffers. We'll create the color
* buffer later in OSMesaMakeCurrent().
*/
_swrast_add_soft_renderbuffers(osmesa->gl_buffer,
GL_FALSE, /* color */
osmesa->gl_visual->haveDepthBuffer,
osmesa->gl_visual->haveStencilBuffer,
osmesa->gl_visual->haveAccumBuffer,
GL_FALSE, /* alpha */
GL_FALSE /* aux */ );
osmesa->format = format;
osmesa->userRowLength = 0;
osmesa->yup = GL_TRUE;
osmesa->rInd = rind;
osmesa->gInd = gind;
osmesa->bInd = bind;
osmesa->aInd = aind;
_mesa_meta_init(&osmesa->mesa);
/* Initialize the software rasterizer and helper modules. */
{
struct gl_context *ctx = &osmesa->mesa;
SWcontext *swrast;
TNLcontext *tnl;
if (!_swrast_CreateContext( ctx ) ||
!_vbo_CreateContext( ctx ) ||
!_tnl_CreateContext( ctx ) ||
!_swsetup_CreateContext( ctx )) {
_mesa_destroy_visual(osmesa->gl_visual);
_mesa_free_context_data(ctx);
free(osmesa);
return NULL;
}
_swsetup_Wakeup( ctx );
/* use default TCL pipeline */
tnl = TNL_CONTEXT(ctx);
tnl->Driver.RunPipeline = _tnl_run_pipeline;
ctx->Driver.MapRenderbuffer = osmesa_MapRenderbuffer;
ctx->Driver.UnmapRenderbuffer = osmesa_UnmapRenderbuffer;
/* Extend the software rasterizer with our optimized line and triangle
* drawing functions.
*/
swrast = SWRAST_CONTEXT( ctx );
swrast->choose_line = osmesa_choose_line;
swrast->choose_triangle = osmesa_choose_triangle;
}
}
return osmesa;
}
/*
* New in Mesa 3.5
*
* Create context and specify size of ancillary buffers.
*/
GLAPI OSMesaContext GLAPIENTRY
OSMesaCreateContextExt( GLenum format, GLint depthBits, GLint stencilBits,
GLint accumBits, OSMesaContext sharelist )
{
OSMesaContext osmesa;
struct dd_function_table functions;
GLint rind, gind, bind, aind;
GLint indexBits = 0, redBits = 0, greenBits = 0, blueBits = 0, alphaBits =0;
GLboolean rgbmode;
rind = gind = bind = aind = 0;
if (format==OSMESA_COLOR_INDEX) {
indexBits = 8;
rgbmode = GL_FALSE;
}
else if (format==OSMESA_RGBA) {
indexBits = 0;
redBits = CHAN_BITS;
greenBits = CHAN_BITS;
blueBits = CHAN_BITS;
alphaBits = CHAN_BITS;
rind = 0;
gind = 1;
bind = 2;
aind = 3;
rgbmode = GL_TRUE;
}
else if (format==OSMESA_BGRA) {
indexBits = 0;
redBits = CHAN_BITS;
greenBits = CHAN_BITS;
blueBits = CHAN_BITS;
alphaBits = CHAN_BITS;
bind = 0;
gind = 1;
rind = 2;
aind = 3;
rgbmode = GL_TRUE;
}
else if (format==OSMESA_ARGB) {
indexBits = 0;
redBits = CHAN_BITS;
greenBits = CHAN_BITS;
blueBits = CHAN_BITS;
alphaBits = CHAN_BITS;
aind = 0;
rind = 1;
gind = 2;
bind = 3;
rgbmode = GL_TRUE;
}
else if (format==OSMESA_RGB) {
indexBits = 0;
redBits = CHAN_BITS;
greenBits = CHAN_BITS;
blueBits = CHAN_BITS;
alphaBits = 0;
rind = 0;
gind = 1;
bind = 2;
rgbmode = GL_TRUE;
}
else if (format==OSMESA_BGR) {
indexBits = 0;
redBits = CHAN_BITS;
greenBits = CHAN_BITS;
blueBits = CHAN_BITS;
alphaBits = 0;
rind = 2;
gind = 1;
bind = 0;
rgbmode = GL_TRUE;
}
#if CHAN_TYPE == GL_UNSIGNED_BYTE
else if (format==OSMESA_RGB_565) {
indexBits = 0;
redBits = 5;
greenBits = 6;
blueBits = 5;
alphaBits = 0;
rind = 0; /* not used */
gind = 0;
bind = 0;
rgbmode = GL_TRUE;
}
#endif
else {
return NULL;
}
osmesa = (OSMesaContext) CALLOC_STRUCT(osmesa_context);
if (osmesa) {
osmesa->gl_visual = _mesa_create_visual( rgbmode,
GL_FALSE, /* double buffer */
GL_FALSE, /* stereo */
redBits,
greenBits,
blueBits,
alphaBits,
indexBits,
depthBits,
stencilBits,
accumBits,
accumBits,
accumBits,
alphaBits ? accumBits : 0,
1 /* num samples */
);
if (!osmesa->gl_visual) {
FREE(osmesa);
return NULL;
}
/* Initialize device driver function table */
_mesa_init_driver_functions(&functions);
/* override with our functions */
functions.GetString = get_string;
functions.UpdateState = osmesa_update_state;
functions.GetBufferSize = get_buffer_size;
if (!_mesa_initialize_context(&osmesa->mesa,
osmesa->gl_visual,
sharelist ? &sharelist->mesa
: (GLcontext *) NULL,
&functions, (void *) osmesa)) {
_mesa_destroy_visual( osmesa->gl_visual );
FREE(osmesa);
return NULL;
}
_mesa_enable_sw_extensions(&(osmesa->mesa));
_mesa_enable_1_3_extensions(&(osmesa->mesa));
_mesa_enable_1_4_extensions(&(osmesa->mesa));
_mesa_enable_1_5_extensions(&(osmesa->mesa));
osmesa->gl_buffer = _mesa_create_framebuffer(osmesa->gl_visual);
if (!osmesa->gl_buffer) {
_mesa_destroy_visual( osmesa->gl_visual );
_mesa_free_context_data( &osmesa->mesa );
FREE(osmesa);
return NULL;
}
/* create front color buffer in user-provided memory (no back buffer) */
_mesa_add_renderbuffer(osmesa->gl_buffer, BUFFER_FRONT_LEFT,
new_osmesa_renderbuffer(format));
_mesa_add_soft_renderbuffers(osmesa->gl_buffer,
GL_FALSE, /* color */
osmesa->gl_visual->haveDepthBuffer,
osmesa->gl_visual->haveStencilBuffer,
osmesa->gl_visual->haveAccumBuffer,
GL_FALSE, /* alpha */
GL_FALSE /* aux */ );
osmesa->format = format;
osmesa->buffer = NULL;
osmesa->width = 0;
osmesa->height = 0;
osmesa->userRowLength = 0;
osmesa->rowlength = 0;
osmesa->yup = GL_TRUE;
osmesa->rInd = rind;
osmesa->gInd = gind;
osmesa->bInd = bind;
osmesa->aInd = aind;
/* Initialize the software rasterizer and helper modules. */
{
GLcontext *ctx = &osmesa->mesa;
SWcontext *swrast;
TNLcontext *tnl;
if (!_swrast_CreateContext( ctx ) ||
!_ac_CreateContext( ctx ) ||
!_tnl_CreateContext( ctx ) ||
!_swsetup_CreateContext( ctx )) {
_mesa_destroy_visual(osmesa->gl_visual);
_mesa_free_context_data(ctx);
_mesa_free(osmesa);
return NULL;
}
_swsetup_Wakeup( ctx );
/* use default TCL pipeline */
tnl = TNL_CONTEXT(ctx);
tnl->Driver.RunPipeline = _tnl_run_pipeline;
/* Extend the software rasterizer with our optimized line and triangle
* drawing functions.
*/
swrast = SWRAST_CONTEXT( ctx );
swrast->choose_line = osmesa_choose_line;
swrast->choose_triangle = osmesa_choose_triangle;
}
}
return osmesa;
}
/**
* New in Mesa 11.2
*
* Create context with attribute list.
*/
GLAPI OSMesaContext GLAPIENTRY
OSMesaCreateContextAttribs(const int *attribList, OSMesaContext sharelist)
{
OSMesaContext osmesa;
struct dd_function_table functions;
GLint rind, gind, bind, aind;
GLint redBits = 0, greenBits = 0, blueBits = 0, alphaBits =0;
GLenum format = OSMESA_RGBA;
GLint depthBits = 0, stencilBits = 0, accumBits = 0;
int profile = OSMESA_COMPAT_PROFILE, version_major = 1, version_minor = 0;
gl_api api_profile = API_OPENGL_COMPAT;
int i;
for (i = 0; attribList[i]; i += 2) {
switch (attribList[i]) {
case OSMESA_FORMAT:
format = attribList[i+1];
switch (format) {
case OSMESA_COLOR_INDEX:
case OSMESA_RGBA:
case OSMESA_BGRA:
case OSMESA_ARGB:
case OSMESA_RGB:
case OSMESA_BGR:
case OSMESA_RGB_565:
/* legal */
break;
default:
return NULL;
}
break;
case OSMESA_DEPTH_BITS:
depthBits = attribList[i+1];
if (depthBits < 0)
return NULL;
break;
case OSMESA_STENCIL_BITS:
stencilBits = attribList[i+1];
if (stencilBits < 0)
return NULL;
break;
case OSMESA_ACCUM_BITS:
accumBits = attribList[i+1];
if (accumBits < 0)
return NULL;
break;
case OSMESA_PROFILE:
profile = attribList[i+1];
if (profile == OSMESA_COMPAT_PROFILE)
api_profile = API_OPENGL_COMPAT;
else if (profile == OSMESA_CORE_PROFILE)
api_profile = API_OPENGL_CORE;
else
return NULL;
break;
case OSMESA_CONTEXT_MAJOR_VERSION:
version_major = attribList[i+1];
if (version_major < 1)
return NULL;
break;
case OSMESA_CONTEXT_MINOR_VERSION:
version_minor = attribList[i+1];
if (version_minor < 0)
return NULL;
break;
case 0:
/* end of list */
break;
default:
fprintf(stderr, "Bad attribute in OSMesaCreateContextAttribs()\n");
return NULL;
}
}
rind = gind = bind = aind = 0;
if (format==OSMESA_RGBA) {
redBits = CHAN_BITS;
greenBits = CHAN_BITS;
blueBits = CHAN_BITS;
alphaBits = CHAN_BITS;
rind = 0;
gind = 1;
bind = 2;
aind = 3;
}
else if (format==OSMESA_BGRA) {
redBits = CHAN_BITS;
greenBits = CHAN_BITS;
blueBits = CHAN_BITS;
alphaBits = CHAN_BITS;
bind = 0;
gind = 1;
rind = 2;
aind = 3;
}
else if (format==OSMESA_ARGB) {
redBits = CHAN_BITS;
greenBits = CHAN_BITS;
blueBits = CHAN_BITS;
alphaBits = CHAN_BITS;
aind = 0;
rind = 1;
gind = 2;
bind = 3;
}
else if (format==OSMESA_RGB) {
redBits = CHAN_BITS;
greenBits = CHAN_BITS;
blueBits = CHAN_BITS;
alphaBits = 0;
rind = 0;
gind = 1;
bind = 2;
}
else if (format==OSMESA_BGR) {
redBits = CHAN_BITS;
greenBits = CHAN_BITS;
blueBits = CHAN_BITS;
alphaBits = 0;
rind = 2;
gind = 1;
bind = 0;
}
#if CHAN_TYPE == GL_UNSIGNED_BYTE
else if (format==OSMESA_RGB_565) {
redBits = 5;
greenBits = 6;
blueBits = 5;
alphaBits = 0;
rind = 0; /* not used */
gind = 0;
bind = 0;
}
#endif
else {
return NULL;
}
osmesa = (OSMesaContext) CALLOC_STRUCT(osmesa_context);
if (osmesa) {
osmesa->gl_visual = _mesa_create_visual( GL_FALSE, /* double buffer */
GL_FALSE, /* stereo */
redBits,
greenBits,
blueBits,
alphaBits,
depthBits,
stencilBits,
accumBits,
accumBits,
accumBits,
alphaBits ? accumBits : 0,
1 /* num samples */
);
if (!osmesa->gl_visual) {
free(osmesa);
return NULL;
}
/* Initialize device driver function table */
_mesa_init_driver_functions(&functions);
/* override with our functions */
functions.GetString = get_string;
functions.UpdateState = osmesa_update_state_wrapper;
if (!_mesa_initialize_context(&osmesa->mesa,
api_profile,
osmesa->gl_visual,
sharelist ? &sharelist->mesa
: (struct gl_context *) NULL,
&functions)) {
_mesa_destroy_visual( osmesa->gl_visual );
free(osmesa);
return NULL;
}
_mesa_enable_sw_extensions(&(osmesa->mesa));
osmesa->gl_buffer = _mesa_create_framebuffer(osmesa->gl_visual);
if (!osmesa->gl_buffer) {
_mesa_destroy_visual( osmesa->gl_visual );
_mesa_free_context_data( &osmesa->mesa );
free(osmesa);
return NULL;
}
/* Create depth/stencil/accum buffers. We'll create the color
* buffer later in OSMesaMakeCurrent().
*/
_swrast_add_soft_renderbuffers(osmesa->gl_buffer,
GL_FALSE, /* color */
osmesa->gl_visual->haveDepthBuffer,
osmesa->gl_visual->haveStencilBuffer,
osmesa->gl_visual->haveAccumBuffer,
GL_FALSE, /* alpha */
GL_FALSE /* aux */ );
osmesa->format = format;
osmesa->userRowLength = 0;
osmesa->yup = GL_TRUE;
osmesa->rInd = rind;
osmesa->gInd = gind;
osmesa->bInd = bind;
osmesa->aInd = aind;
_mesa_meta_init(&osmesa->mesa);
/* Initialize the software rasterizer and helper modules. */
{
struct gl_context *ctx = &osmesa->mesa;
SWcontext *swrast;
TNLcontext *tnl;
if (!_swrast_CreateContext( ctx ) ||
!_vbo_CreateContext( ctx ) ||
!_tnl_CreateContext( ctx ) ||
!_swsetup_CreateContext( ctx )) {
_mesa_destroy_visual(osmesa->gl_visual);
_mesa_free_context_data(ctx);
free(osmesa);
return NULL;
}
_swsetup_Wakeup( ctx );
/* use default TCL pipeline */
tnl = TNL_CONTEXT(ctx);
tnl->Driver.RunPipeline = _tnl_run_pipeline;
ctx->Driver.MapRenderbuffer = osmesa_MapRenderbuffer;
ctx->Driver.UnmapRenderbuffer = osmesa_UnmapRenderbuffer;
ctx->Driver.GenerateMipmap = _mesa_generate_mipmap;
/* Extend the software rasterizer with our optimized line and triangle
* drawing functions.
*/
swrast = SWRAST_CONTEXT( ctx );
swrast->choose_line = osmesa_choose_line;
swrast->choose_triangle = osmesa_choose_triangle;
_mesa_compute_version(ctx);
if (ctx->Version < version_major * 10 + version_minor) {
_mesa_destroy_visual(osmesa->gl_visual);
_mesa_free_context_data(ctx);
free(osmesa);
return NULL;
}
/* Exec table initialization requires the version to be computed */
_mesa_initialize_dispatch_tables(ctx);
_mesa_initialize_vbo_vtxfmt(ctx);
}
}
return osmesa;
}
//
// Input: rect - initial rectangle
// name - window name
// resizingMode - example: B_FOLLOW_NONE
// mode - usually 0 ?
// options - Bitwise-OR of BGL_* tokens
//
BGLView::BGLView(BRect rect, char *name,
ulong resizingMode, ulong mode,
ulong options)
: BView(rect, name, B_FOLLOW_ALL_SIDES, mode | B_WILL_DRAW | B_FRAME_EVENTS) // | B_FULL_UPDATE_ON_RESIZE)
{
// We don't support single buffering (yet): double buffering forced.
options |= BGL_DOUBLE;
const GLboolean rgbFlag = ((options & BGL_INDEX) == 0);
const GLboolean alphaFlag = ((options & BGL_ALPHA) == BGL_ALPHA);
const GLboolean dblFlag = ((options & BGL_DOUBLE) == BGL_DOUBLE);
const GLboolean stereoFlag = false;
const GLint depth = (options & BGL_DEPTH) ? 16 : 0;
const GLint stencil = (options & BGL_STENCIL) ? 8 : 0;
const GLint accum = (options & BGL_ACCUM) ? 16 : 0;
const GLint index = (options & BGL_INDEX) ? 32 : 0;
const GLint red = rgbFlag ? 8 : 0;
const GLint green = rgbFlag ? 8 : 0;
const GLint blue = rgbFlag ? 8 : 0;
const GLint alpha = alphaFlag ? 8 : 0;
m_options = options | BGL_INDIRECT;
struct dd_function_table functions;
if (!rgbFlag) {
fprintf(stderr, "Mesa Warning: color index mode not supported\n");
}
// Allocate auxiliary data object
MesaDriver * md = new MesaDriver();
// examine option flags and create gl_context struct
GLvisual * visual = _mesa_create_visual( rgbFlag,
dblFlag,
stereoFlag,
red, green, blue, alpha,
index,
depth,
stencil,
accum, accum, accum, accum,
1
);
// Initialize device driver function table
_mesa_init_driver_functions(&functions);
functions.GetString = md->GetString;
functions.UpdateState = md->UpdateState;
functions.GetBufferSize = md->GetBufferSize;
functions.Clear = md->Clear;
functions.ClearIndex = md->ClearIndex;
functions.ClearColor = md->ClearColor;
functions.Error = md->Error;
functions.Viewport = md->Viewport;
// create core context
GLcontext *ctx = _mesa_create_context(visual, NULL, &functions, md);
if (! ctx) {
_mesa_destroy_visual(visual);
delete md;
return;
}
_mesa_enable_sw_extensions(ctx);
_mesa_enable_1_3_extensions(ctx);
_mesa_enable_1_4_extensions(ctx);
_mesa_enable_1_5_extensions(ctx);
// create core framebuffer
GLframebuffer * buffer = _mesa_create_framebuffer(visual,
depth > 0 ? GL_TRUE : GL_FALSE,
stencil > 0 ? GL_TRUE: GL_FALSE,
accum > 0 ? GL_TRUE : GL_FALSE,
alphaFlag
);
/* Initialize the software rasterizer and helper modules.
*/
_swrast_CreateContext(ctx);
_vbo_CreateContext(ctx);
_tnl_CreateContext(ctx);
_swsetup_CreateContext(ctx);
_swsetup_Wakeup(ctx);
md->Init(this, ctx, visual, buffer );
// Hook aux data into BGLView object
m_gc = md;
// some stupid applications (Quake2) don't even think about calling LockGL()
// before using glGetString and friends... so make sure there is at least a
// valid context.
if (!_mesa_get_current_context()) {
LockGL();
// not needed, we don't have a looper yet: UnlockLooper();
}
}
BOOL sw_SetPixelFormat(HDC hdc, struct wgl_dc_data* dc_data, INT format)
{
struct sw_framebuffer* fb;
BOOL doubleBuffered;
assert(dc_data->sw_data == NULL);
/* So, someone is crazy enough to ask for sw implementation. Announce it. */
TRACE("OpenGL software implementation START!\n");
/* allocate our structure */
fb = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, FIELD_OFFSET(struct sw_framebuffer, bmi.bmiColors[3]));
if(!fb)
{
ERR("HeapAlloc FAILED!\n");
return FALSE;
}
/* Get the format index */
fb->format_index = index_from_format(dc_data, format, &doubleBuffered);
TRACE("Using format %u - double buffered: %x.\n", fb->format_index, doubleBuffered);
fb->flags = doubleBuffered ? SW_FB_DOUBLEBUFFERED : 0;
/* Set the bitmap info describing the framebuffer */
fb->bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
fb->bmi.bmiHeader.biPlanes = 1;
fb->bmi.bmiHeader.biBitCount = pixel_formats[fb->format_index].color_bits;
fb->bmi.bmiHeader.biCompression = pixel_formats[fb->format_index].bmp_compression;
fb->bmi.bmiHeader.biSizeImage = 0;
fb->bmi.bmiHeader.biXPelsPerMeter = 0;
fb->bmi.bmiHeader.biYPelsPerMeter = 0;
fb->bmi.bmiHeader.biClrUsed = 0;
fb->bmi.bmiHeader.biClrImportant = 0;
*((DWORD*)&fb->bmi.bmiColors[0]) = pixel_formats[fb->format_index].red_mask;
*((DWORD*)&fb->bmi.bmiColors[1]) = pixel_formats[fb->format_index].green_mask;
*((DWORD*)&fb->bmi.bmiColors[2]) = pixel_formats[fb->format_index].blue_mask;
/* Save the HDC */
fb->hdc = hdc;
/* Allocate the visual structure describing the format */
fb->gl_visual = _mesa_create_visual(
!!(fb->flags & SW_FB_DOUBLEBUFFERED),
GL_FALSE, /* No stereoscopic support */
pixel_formats[fb->format_index].red_bits,
pixel_formats[fb->format_index].green_bits,
pixel_formats[fb->format_index].blue_bits,
pixel_formats[fb->format_index].alpha_bits,
pixel_formats[fb->format_index].depth_bits,
pixel_formats[fb->format_index].stencil_bits,
pixel_formats[fb->format_index].accum_bits,
pixel_formats[fb->format_index].accum_bits,
pixel_formats[fb->format_index].accum_bits,
pixel_formats[fb->format_index].alpha_bits ?
pixel_formats[fb->format_index].accum_bits : 0);
if(!fb->gl_visual)
{
ERR("Failed to allocate a GL visual.\n");
HeapFree(GetProcessHeap(), 0, fb);
return FALSE;
}
/* Allocate the framebuffer structure */
fb->gl_buffer = _mesa_create_framebuffer(fb->gl_visual);
if (!fb->gl_buffer) {
ERR("Failed to allocate the mesa framebuffer structure.\n");
_mesa_destroy_visual( fb->gl_visual );
HeapFree(GetProcessHeap(), 0, fb);
return FALSE;
}
/* Add the depth/stencil/accum buffers */
_swrast_add_soft_renderbuffers(fb->gl_buffer,
GL_FALSE, /* color */
fb->gl_visual->haveDepthBuffer,
fb->gl_visual->haveStencilBuffer,
fb->gl_visual->haveAccumBuffer,
GL_FALSE, /* alpha */
GL_FALSE /* aux */ );
/* Initialize our render buffers */
sw_init_renderbuffers(fb);
/* Everything went fine */
dc_data->sw_data = fb;
return TRUE;
}
/* Create and initialize the Mesa and driver specific pixmap buffer
* data.
*/
static GLboolean
fbCreateBuffer( __DRIscreenPrivate *driScrnPriv,
__DRIdrawablePrivate *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(GL_RGBA,
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(GL_RGBA,
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;
}
}
/*
* Create a new FX/Mesa context and return a handle to it.
*/
fxMesaContext GLAPIENTRY
fxMesaCreateContext(GLuint win,
GrScreenResolution_t res,
GrScreenRefresh_t ref, const GLint attribList[])
{
fxMesaContext fxMesa = NULL;
GLcontext *ctx = NULL, *shareCtx = NULL;
struct dd_function_table functions;
int i;
const char *str;
int sliaa, numSLI, samplesPerChip;
struct SstCard_St *voodoo;
struct tdfx_glide *Glide;
GLboolean aux;
GLboolean doubleBuffer;
GLuint colDepth;
GLuint depthSize, alphaSize, stencilSize, accumSize;
GLuint redBits, greenBits, blueBits, alphaBits;
GrPixelFormat_t pixFmt;
if (TDFX_DEBUG & VERBOSE_DRIVER) {
fprintf(stderr, "fxMesaCreateContext(...)\n");
}
/* Okay, first process the user flags */
aux = GL_FALSE;
doubleBuffer = GL_FALSE;
colDepth = 16;
depthSize = alphaSize = stencilSize = accumSize = 0;
i = 0;
while (attribList[i] != FXMESA_NONE) {
switch (attribList[i]) {
case FXMESA_COLORDEPTH:
colDepth = attribList[++i];
break;
case FXMESA_DOUBLEBUFFER:
doubleBuffer = GL_TRUE;
break;
case FXMESA_ALPHA_SIZE:
if ((alphaSize = attribList[++i])) {
aux = GL_TRUE;
}
break;
case FXMESA_DEPTH_SIZE:
if ((depthSize = attribList[++i])) {
aux = GL_TRUE;
}
break;
case FXMESA_STENCIL_SIZE:
stencilSize = attribList[++i];
break;
case FXMESA_ACCUM_SIZE:
accumSize = attribList[++i];
break;
/* XXX ugly hack here for sharing display lists */
case FXMESA_SHARE_CONTEXT:
shareCtx = (GLcontext *)attribList[++i];
break;
default:
fprintf(stderr, "fxMesaCreateContext: ERROR: wrong parameter (%d) passed\n", attribList[i]);
return NULL;
}
i++;
}
if (!fxQueryHardware()) {
str = "no Voodoo hardware!";
goto errorhandler;
}
grSstSelect(glbCurrentBoard);
/*grEnable(GR_OPENGL_MODE_EXT);*/ /* [koolsmoky] */
voodoo = &glbHWConfig.SSTs[glbCurrentBoard];
fxMesa = (fxMesaContext)CALLOC_STRUCT(tfxMesaContext);
if (!fxMesa) {
str = "private context";
goto errorhandler;
}
if (getenv("MESA_FX_INFO")) {
fxMesa->verbose = GL_TRUE;
}
fxMesa->type = voodoo->type;
fxMesa->HavePalExt = voodoo->HavePalExt && !getenv("MESA_FX_IGNORE_PALEXT");
fxMesa->HavePixExt = voodoo->HavePixExt && !getenv("MESA_FX_IGNORE_PIXEXT");
fxMesa->HaveTexFmt = voodoo->HaveTexFmt && !getenv("MESA_FX_IGNORE_TEXFMT");
fxMesa->HaveCmbExt = voodoo->HaveCmbExt && !getenv("MESA_FX_IGNORE_CMBEXT");
fxMesa->HaveMirExt = voodoo->HaveMirExt && !getenv("MESA_FX_IGNORE_MIREXT");
fxMesa->HaveTexUma = voodoo->HaveTexUma && !getenv("MESA_FX_IGNORE_TEXUMA");
fxMesa->Glide = glbHWConfig.Glide;
Glide = &fxMesa->Glide;
fxMesa->HaveTexus2 = Glide->txImgQuantize &&
Glide->txMipQuantize &&
Glide->txPalToNcc && !getenv("MESA_FX_IGNORE_TEXUS2");
/* Determine if we need vertex swapping, RGB order and SLI/AA */
sliaa = 0;
switch (fxMesa->type) {
case GR_SSTTYPE_VOODOO:
case GR_SSTTYPE_SST96:
case GR_SSTTYPE_Banshee:
fxMesa->bgrOrder = GL_TRUE;
fxMesa->snapVertices = (getenv("MESA_FX_NOSNAP") == NULL);
break;
case GR_SSTTYPE_Voodoo2:
fxMesa->bgrOrder = GL_TRUE;
fxMesa->snapVertices = GL_FALSE;
break;
case GR_SSTTYPE_Voodoo4:
case GR_SSTTYPE_Voodoo5:
/* number of SLI units and AA Samples per chip */
if ((str = Glide->grGetRegistryOrEnvironmentStringExt("SSTH3_SLI_AA_CONFIGURATION")) != NULL) {
sliaa = atoi(str);
}
case GR_SSTTYPE_Voodoo3:
default:
fxMesa->bgrOrder = GL_FALSE;
fxMesa->snapVertices = GL_FALSE;
break;
}
/* XXX todo - Add the old SLI/AA settings for Napalm. */
switch(voodoo->numChips) {
case 4: /* 4 chips */
switch(sliaa) {
case 8: /* 8 Sample AA */
numSLI = 1;
samplesPerChip = 2;
break;
case 7: /* 4 Sample AA */
numSLI = 1;
samplesPerChip = 1;
break;
case 6: /* 2 Sample AA */
numSLI = 2;
samplesPerChip = 1;
break;
default:
numSLI = 4;
samplesPerChip = 1;
}
break;
case 2: /* 2 chips */
switch(sliaa) {
case 4: /* 4 Sample AA */
numSLI = 1;
samplesPerChip = 2;
break;
case 3: /* 2 Sample AA */
numSLI = 1;
samplesPerChip = 1;
break;
default:
numSLI = 2;
samplesPerChip = 1;
}
break;
default: /* 1 chip */
switch(sliaa) {
case 1: /* 2 Sample AA */
numSLI = 1;
samplesPerChip = 2;
break;
default:
numSLI = 1;
samplesPerChip = 1;
}
}
fxMesa->fsaa = samplesPerChip * voodoo->numChips / numSLI; /* 1:noFSAA, 2:2xFSAA, 4:4xFSAA, 8:8xFSAA */
switch (fxMesa->colDepth = colDepth) {
case 15:
redBits = 5;
greenBits = 5;
blueBits = 5;
alphaBits = depthSize ? 1 : 8;
switch(fxMesa->fsaa) {
case 8:
pixFmt = GR_PIXFMT_AA_8_ARGB_1555;
break;
case 4:
pixFmt = GR_PIXFMT_AA_4_ARGB_1555;
break;
case 2:
pixFmt = GR_PIXFMT_AA_2_ARGB_1555;
break;
default:
pixFmt = GR_PIXFMT_ARGB_1555;
}
break;
case 16:
redBits = 5;
greenBits = 6;
blueBits = 5;
alphaBits = depthSize ? 0 : 8;
switch(fxMesa->fsaa) {
case 8:
pixFmt = GR_PIXFMT_AA_8_RGB_565;
break;
case 4:
pixFmt = GR_PIXFMT_AA_4_RGB_565;
break;
case 2:
pixFmt = GR_PIXFMT_AA_2_RGB_565;
break;
default:
pixFmt = GR_PIXFMT_RGB_565;
}
break;
case 24:
fxMesa->colDepth = 32;
case 32:
redBits = 8;
greenBits = 8;
blueBits = 8;
alphaBits = 8;
switch(fxMesa->fsaa) {
case 8:
pixFmt = GR_PIXFMT_AA_8_ARGB_8888;
break;
case 4:
pixFmt = GR_PIXFMT_AA_4_ARGB_8888;
break;
case 2:
pixFmt = GR_PIXFMT_AA_2_ARGB_8888;
break;
default:
pixFmt = GR_PIXFMT_ARGB_8888;
}
break;
default:
str = "pixelFormat";
goto errorhandler;
}
/* Tips:
* 1. we don't bother setting/checking AUX for stencil, because we'll decide
* later whether we have HW stencil, based on depth buffer (thus AUX is
* properly set)
* 2. when both DEPTH and ALPHA are enabled, depth should win. However, it is
* not clear whether 15bpp and 32bpp require AUX alpha buffer. Furthermore,
* alpha buffering is required only if destination alpha is used in alpha
* blending; alpha blending modes that do not use destination alpha can be
* used w/o alpha buffer.
* 3. `alphaBits' is what we can provide
* `alphaSize' is what app requests
* if we cannot provide enough bits for alpha buffer, we should fallback to
* SW alpha. However, setting `alphaBits' to `alphaSize' might confuse some
* of the span functions...
*/
fxMesa->haveHwAlpha = GL_FALSE;
if (alphaSize && (alphaSize <= alphaBits)) {
alphaSize = alphaBits;
fxMesa->haveHwAlpha = GL_TRUE;
}
fxMesa->haveHwStencil = (fxMesa->HavePixExt && stencilSize && depthSize == 24);
fxMesa->haveZBuffer = depthSize > 0;
fxMesa->haveDoubleBuffer = doubleBuffer;
fxMesa->haveGlobalPaletteTexture = GL_FALSE;
fxMesa->board = glbCurrentBoard;
fxMesa->haveTwoTMUs = (voodoo->nTexelfx > 1);
if ((str = Glide->grGetRegistryOrEnvironmentStringExt("FX_GLIDE_NUM_TMU"))) {
if (atoi(str) <= 1) {
fxMesa->haveTwoTMUs = GL_FALSE;
}
}
if ((str = Glide->grGetRegistryOrEnvironmentStringExt("FX_GLIDE_SWAPPENDINGCOUNT"))) {
fxMesa->maxPendingSwapBuffers = atoi(str);
if (fxMesa->maxPendingSwapBuffers > 6) {
fxMesa->maxPendingSwapBuffers = 6;
} else if (fxMesa->maxPendingSwapBuffers < 0) {
fxMesa->maxPendingSwapBuffers = 0;
}
} else {
fxMesa->maxPendingSwapBuffers = 2;
}
if ((str = Glide->grGetRegistryOrEnvironmentStringExt("FX_GLIDE_SWAPINTERVAL"))) {
fxMesa->swapInterval = atoi(str);
} else {
fxMesa->swapInterval = 0;
}
BEGIN_BOARD_LOCK();
if (fxMesa->HavePixExt) {
fxMesa->glideContext = Glide->grSstWinOpenExt((FxU32)win, res, ref,
GR_COLORFORMAT_ABGR, GR_ORIGIN_LOWER_LEFT,
pixFmt,
2, aux);
} else if (pixFmt == GR_PIXFMT_RGB_565) {
fxMesa->glideContext = grSstWinOpen((FxU32)win, res, ref,
GR_COLORFORMAT_ABGR, GR_ORIGIN_LOWER_LEFT,
2, aux);
} else {
fxMesa->glideContext = 0;
}
END_BOARD_LOCK();
if (!fxMesa->glideContext) {
str = "grSstWinOpen";
goto errorhandler;
}
/* screen */
fxMesa->screen_width = FX_grSstScreenWidth();
fxMesa->screen_height = FX_grSstScreenHeight();
/* window inside screen */
fxMesa->width = fxMesa->screen_width;
fxMesa->height = fxMesa->screen_height;
/* scissor inside window */
fxMesa->clipMinX = 0;
fxMesa->clipMaxX = fxMesa->width;
fxMesa->clipMinY = 0;
fxMesa->clipMaxY = fxMesa->height;
if (fxMesa->verbose) {
FxI32 tmuRam, fbRam;
/* Not that it matters, but tmuRam and fbRam change after grSstWinOpen. */
tmuRam = voodoo->tmuConfig[GR_TMU0].tmuRam;
fbRam = voodoo->fbRam;
BEGIN_BOARD_LOCK();
grGet(GR_MEMORY_TMU, 4, &tmuRam);
grGet(GR_MEMORY_FB, 4, &fbRam);
END_BOARD_LOCK();
fprintf(stderr, "Voodoo Using Glide %s\n", grGetString(GR_VERSION));
fprintf(stderr, "Voodoo Board: %d/%d, %s, %d GPU\n",
fxMesa->board + 1,
glbHWConfig.num_sst,
grGetString(GR_HARDWARE),
voodoo->numChips);
fprintf(stderr, "Voodoo Memory: FB = %ld, TM = %d x %ld\n",
fbRam,
voodoo->nTexelfx,
tmuRam);
fprintf(stderr, "Voodoo Screen: %dx%d:%d %s, %svertex snapping\n",
fxMesa->screen_width,
fxMesa->screen_height,
colDepth,
fxMesa->bgrOrder ? "BGR" : "RGB",
fxMesa->snapVertices ? "" : "no ");
}
sprintf(fxMesa->rendererString, "Mesa %s v0.63 %s%s",
grGetString(GR_RENDERER),
grGetString(GR_HARDWARE),
((fxMesa->type < GR_SSTTYPE_Voodoo4) && (voodoo->numChips > 1)) ? " SLI" : "");
fxMesa->glVis = _mesa_create_visual(GL_TRUE, /* RGB mode */
doubleBuffer,
GL_FALSE, /* stereo */
redBits, /* RGBA.R bits */
greenBits, /* RGBA.G bits */
blueBits, /* RGBA.B bits */
alphaSize, /* RGBA.A bits */
0, /* index bits */
depthSize, /* depth_size */
stencilSize, /* stencil_size */
accumSize,
accumSize,
accumSize,
alphaSize ? accumSize : 0,
1);
if (!fxMesa->glVis) {
str = "_mesa_create_visual";
goto errorhandler;
}
_mesa_init_driver_functions(&functions);
ctx = fxMesa->glCtx = _mesa_create_context(fxMesa->glVis, shareCtx,
&functions, (void *) fxMesa);
if (!ctx) {
str = "_mesa_create_context";
goto errorhandler;
}
if (!fxDDInitFxMesaContext(fxMesa)) {
str = "fxDDInitFxMesaContext";
goto errorhandler;
}
fxMesa->glBuffer = _mesa_create_framebuffer(fxMesa->glVis);
#if 0
/* XXX this is a complete mess :(
* _mesa_add_soft_renderbuffers
* driNewRenderbuffer
*/
GL_FALSE, /* no software depth */
stencilSize && !fxMesa->haveHwStencil,
fxMesa->glVis->accumRedBits > 0,
alphaSize && !fxMesa->haveHwAlpha);
#endif
if (!fxMesa->glBuffer) {
str = "_mesa_create_framebuffer";
goto errorhandler;
}
glbTotNumCtx++;
/* install signal handlers */
#if defined(__linux__)
/* Only install if environment var. is not set. */
if (!getenv("MESA_FX_NO_SIGNALS")) {
signal(SIGINT, cleangraphics_handler);
signal(SIGHUP, cleangraphics_handler);
signal(SIGPIPE, cleangraphics_handler);
signal(SIGFPE, cleangraphics_handler);
signal(SIGBUS, cleangraphics_handler);
signal(SIGILL, cleangraphics_handler);
signal(SIGSEGV, cleangraphics_handler);
signal(SIGTERM, cleangraphics_handler);
}
#endif
return fxMesa;
errorhandler:
if (fxMesa) {
if (fxMesa->glideContext) {
grSstWinClose(fxMesa->glideContext);
fxMesa->glideContext = 0;
}
if (fxMesa->state) {
FREE(fxMesa->state);
}
if (fxMesa->fogTable) {
FREE(fxMesa->fogTable);
}
if (fxMesa->glBuffer) {
_mesa_unreference_framebuffer(&fxMesa->glBuffer);
}
if (fxMesa->glVis) {
_mesa_destroy_visual(fxMesa->glVis);
}
if (fxMesa->glCtx) {
_mesa_destroy_context(fxMesa->glCtx);
}
FREE(fxMesa);
}
fprintf(stderr, "fxMesaCreateContext: ERROR: %s\n", str);
return NULL;
}
