void st_destroy_context( struct st_context *st )
{
struct pipe_context *pipe = st->pipe;
struct cso_context *cso = st->cso_context;
GLcontext *ctx = st->ctx;
GLuint i;
/* need to unbind and destroy CSO objects before anything else */
cso_release_all(st->cso_context);
st_reference_fragprog(st, &st->fp, NULL);
st_reference_vertprog(st, &st->vp, NULL);
/* release framebuffer surfaces */
for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
pipe_surface_reference(&st->state.framebuffer.cbufs[i], NULL);
}
pipe_surface_reference(&st->state.framebuffer.zsbuf, NULL);
_mesa_delete_program_cache(st->ctx, st->pixel_xfer.cache);
_vbo_DestroyContext(st->ctx);
_mesa_free_context_data(ctx);
st_destroy_context_priv(st);
cso_destroy_context(cso);
pipe->destroy( pipe );
free(ctx);
}
void st_destroy_context( struct st_context *st )
{
struct pipe_context *pipe = st->pipe;
struct gl_context *ctx = st->ctx;
GLuint i;
_mesa_HashWalk(ctx->Shared->TexObjects, destroy_tex_sampler_cb, st);
st_reference_fragprog(st, &st->fp, NULL);
st_reference_geomprog(st, &st->gp, NULL);
st_reference_vertprog(st, &st->vp, NULL);
/* release framebuffer surfaces */
for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
pipe_surface_reference(&st->state.framebuffer.cbufs[i], NULL);
}
pipe_surface_reference(&st->state.framebuffer.zsbuf, NULL);
_mesa_delete_program_cache(st->ctx, st->pixel_xfer.cache);
_vbo_DestroyContext(st->ctx);
st_destroy_program_variants(st);
_mesa_free_context_data(ctx);
/* This will free the st_context too, so 'st' must not be accessed
* afterwards. */
st_destroy_context_priv(st);
st = NULL;
pipe->destroy( pipe );
free(ctx);
}
void
intelDestroyContext(__DRIcontext * driContextPriv)
{
struct brw_context *brw =
(struct brw_context *) driContextPriv->driverPrivate;
struct gl_context *ctx = &brw->ctx;
assert(brw); /* should never be null */
if (!brw)
return;
/* Dump a final BMP in case the application doesn't call SwapBuffers */
if (INTEL_DEBUG & DEBUG_AUB) {
intel_batchbuffer_flush(brw);
aub_dump_bmp(&brw->ctx);
}
_mesa_meta_free(&brw->ctx);
if (INTEL_DEBUG & DEBUG_SHADER_TIME) {
/* Force a report. */
brw->shader_time.report_time = 0;
brw_collect_and_report_shader_time(brw);
brw_destroy_shader_time(brw);
}
brw_destroy_state(brw);
brw_draw_destroy(brw);
drm_intel_bo_unreference(brw->curbe.curbe_bo);
free(brw->curbe.last_buf);
free(brw->curbe.next_buf);
drm_intel_gem_context_destroy(brw->hw_ctx);
if (ctx->swrast_context) {
_swsetup_DestroyContext(&brw->ctx);
_tnl_DestroyContext(&brw->ctx);
}
_vbo_DestroyContext(&brw->ctx);
if (ctx->swrast_context)
_swrast_DestroyContext(&brw->ctx);
intel_batchbuffer_free(brw);
drm_intel_bo_unreference(brw->first_post_swapbuffers_batch);
brw->first_post_swapbuffers_batch = NULL;
driDestroyOptionCache(&brw->optionCache);
/* free the Mesa context */
_mesa_free_context_data(&brw->ctx);
ralloc_free(brw);
driContextPriv->driverPrivate = NULL;
}
DHGLRC sw_CreateContext(struct wgl_dc_data* dc_data)
{
struct sw_context* sw_ctx;
struct sw_framebuffer* fb = dc_data->sw_data;
struct dd_function_table mesa_drv_functions;
TNLcontext *tnl;
/* We use the mesa memory routines for this function */
sw_ctx = CALLOC_STRUCT(sw_context);
if(!sw_ctx)
return NULL;
/* Set mesa default functions */
_mesa_init_driver_functions(&mesa_drv_functions);
/* Override */
mesa_drv_functions.GetString = sw_get_string;
mesa_drv_functions.UpdateState = sw_update_state;
mesa_drv_functions.GetBufferSize = NULL;
/* Initialize the context */
if(!_mesa_initialize_context(&sw_ctx->mesa,
fb->gl_visual,
NULL,
&mesa_drv_functions,
(void *) sw_ctx))
{
ERR("Failed to initialize the mesa context.\n");
free(sw_ctx);
return NULL;
}
/* Initialize the "meta driver" */
_mesa_meta_init(&sw_ctx->mesa);
/* Initialize helpers */
if(!_swrast_CreateContext(&sw_ctx->mesa) ||
!_vbo_CreateContext(&sw_ctx->mesa) ||
!_tnl_CreateContext(&sw_ctx->mesa) ||
!_swsetup_CreateContext(&sw_ctx->mesa))
{
ERR("Failed initializing helpers.\n");
_mesa_free_context_data(&sw_ctx->mesa);
free(sw_ctx);
return NULL;
}
/* Wake up! */
_swsetup_Wakeup(&sw_ctx->mesa);
/* Use TnL defaults */
tnl = TNL_CONTEXT(&sw_ctx->mesa);
tnl->Driver.RunPipeline = _tnl_run_pipeline;
/* To map the display into user memory */
sw_ctx->mesa.Driver.MapRenderbuffer = sw_MapRenderbuffer;
sw_ctx->mesa.Driver.UnmapRenderbuffer = sw_UnmapRenderbuffer;
return (DHGLRC)sw_ctx;
}
/**
* Destroy a GLcontext structure.
*
* \param ctx GL context.
*
* Calls _mesa_free_context_data() and frees the GLcontext structure itself.
*/
void
_mesa_destroy_context( GLcontext *ctx )
{
if (ctx) {
_mesa_free_context_data(ctx);
_mesa_free( (void *) ctx );
}
}
void
intelDestroyContext(__DRIcontext * driContextPriv)
{
struct intel_context *intel =
(struct intel_context *) driContextPriv->driverPrivate;
assert(intel); /* should never be null */
if (intel) {
GLboolean release_texture_heaps;
INTEL_FIREVERTICES(intel);
_mesa_meta_free(&intel->ctx);
meta_destroy_metaops(&intel->meta);
intel->vtbl.destroy(intel);
release_texture_heaps = (intel->ctx.Shared->RefCount == 1);
_swsetup_DestroyContext(&intel->ctx);
_tnl_DestroyContext(&intel->ctx);
_vbo_DestroyContext(&intel->ctx);
_swrast_DestroyContext(&intel->ctx);
intel->Fallback = 0x0; /* don't call _swrast_Flush later */
intel_batchbuffer_free(intel->batch);
intel->batch = NULL;
free(intel->prim.vb);
intel->prim.vb = NULL;
dri_bo_unreference(intel->prim.vb_bo);
intel->prim.vb_bo = NULL;
dri_bo_unreference(intel->first_post_swapbuffers_batch);
intel->first_post_swapbuffers_batch = NULL;
if (release_texture_heaps) {
/* Nothing is currently done here to free texture heaps;
* but we're not using the texture heap utilities, so I
* rather think we shouldn't. I've taken a look, and can't
* find any private texture data hanging around anywhere, but
* I'm not yet certain there isn't any at all...
*/
/* if (INTEL_DEBUG & DEBUG_TEXTURE)
fprintf(stderr, "do something to free texture heaps\n");
*/
}
driDestroyOptionCache(&intel->optionCache);
/* free the Mesa context */
_mesa_free_context_data(&intel->ctx);
FREE(intel);
driContextPriv->driverPrivate = NULL;
}
}
void GLAPIENTRY AMesaDestroyContext(AMesaContext context)
{
if (context) {
_swsetup_DestroyContext(context->GLContext);
_tnl_DestroyContext(context->GLContext);
_ac_DestroyContext(context->GLContext);
_swrast_DestroyContext(context->GLContext);
_mesa_free_context_data(context->GLContext);
free(context);
}
}
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;
}
void
intelDestroyContext(__DRIcontext * driContextPriv)
{
struct intel_context *intel =
(struct intel_context *) driContextPriv->driverPrivate;
struct gl_context *ctx = &intel->ctx;
assert(intel); /* should never be null */
if (intel) {
INTEL_FIREVERTICES(intel);
/* Dump a final BMP in case the application doesn't call SwapBuffers */
if (INTEL_DEBUG & DEBUG_AUB) {
intel_batchbuffer_flush(intel);
aub_dump_bmp(&intel->ctx);
}
_mesa_meta_free(&intel->ctx);
intel->vtbl.destroy(intel);
if (ctx->swrast_context) {
_swsetup_DestroyContext(&intel->ctx);
_tnl_DestroyContext(&intel->ctx);
}
_vbo_DestroyContext(&intel->ctx);
if (ctx->swrast_context)
_swrast_DestroyContext(&intel->ctx);
intel->Fallback = 0x0; /* don't call _swrast_Flush later */
intel_batchbuffer_free(intel);
free(intel->prim.vb);
intel->prim.vb = NULL;
drm_intel_bo_unreference(intel->prim.vb_bo);
intel->prim.vb_bo = NULL;
drm_intel_bo_unreference(intel->first_post_swapbuffers_batch);
intel->first_post_swapbuffers_batch = NULL;
driDestroyOptionCache(&intel->optionCache);
/* free the Mesa context */
_mesa_free_context_data(&intel->ctx);
_math_matrix_dtr(&intel->ViewportMatrix);
ralloc_free(intel);
driContextPriv->driverPrivate = NULL;
}
}
PUBLIC
void XMesaDestroyContext( XMesaContext c )
{
struct gl_context *mesaCtx = &c->mesa;
_mesa_meta_free( mesaCtx );
_swsetup_DestroyContext( mesaCtx );
_swrast_DestroyContext( mesaCtx );
_tnl_DestroyContext( mesaCtx );
_vbo_DestroyContext( mesaCtx );
_mesa_free_context_data( mesaCtx );
free( c );
}
/*
* Destroy an Off-Screen Mesa rendering context.
*
* Input: ctx - the context to destroy
*/
GLAPI void GLAPIENTRY
OSMesaDestroyContext( OSMesaContext ctx )
{
if (ctx) {
_swsetup_DestroyContext( &ctx->mesa );
_tnl_DestroyContext( &ctx->mesa );
_ac_DestroyContext( &ctx->mesa );
_swrast_DestroyContext( &ctx->mesa );
_mesa_destroy_visual( ctx->gl_visual );
_mesa_destroy_framebuffer( ctx->gl_buffer );
_mesa_free_context_data( &ctx->mesa );
FREE( ctx );
}
}
void st_destroy_context( struct st_context *st )
{
struct pipe_context *pipe = st->pipe;
struct cso_context *cso = st->cso_context;
struct gl_context *ctx = st->ctx;
GLuint i;
_mesa_HashWalk(ctx->Shared->TexObjects, destroy_tex_sampler_cb, st);
/* need to unbind and destroy CSO objects before anything else */
cso_release_all(st->cso_context);
st_reference_fragprog(st, &st->fp, NULL);
st_reference_geomprog(st, &st->gp, NULL);
st_reference_vertprog(st, &st->vp, NULL);
/* release framebuffer surfaces */
for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
pipe_surface_reference(&st->state.framebuffer.cbufs[i], NULL);
}
pipe_surface_reference(&st->state.framebuffer.zsbuf, NULL);
pipe->set_index_buffer(pipe, NULL);
for (i = 0; i < PIPE_SHADER_TYPES; i++) {
pipe->set_constant_buffer(pipe, i, 0, NULL);
}
_mesa_delete_program_cache(st->ctx, st->pixel_xfer.cache);
_vbo_DestroyContext(st->ctx);
st_destroy_program_variants(st);
_mesa_free_context_data(ctx);
/* This will free the st_context too, so 'st' must not be accessed
* afterwards. */
st_destroy_context_priv(st);
st = NULL;
cso_destroy_context(cso);
pipe->destroy( pipe );
free(ctx);
}
/**
* Destroy an Off-Screen Mesa rendering context.
*
* \param osmesa the context to destroy
*/
GLAPI void GLAPIENTRY
OSMesaDestroyContext( OSMesaContext osmesa )
{
if (osmesa) {
if (osmesa->rb)
_mesa_reference_renderbuffer(&osmesa->rb, NULL);
_swsetup_DestroyContext( &osmesa->mesa );
_tnl_DestroyContext( &osmesa->mesa );
_vbo_DestroyContext( &osmesa->mesa );
_swrast_DestroyContext( &osmesa->mesa );
_mesa_destroy_visual( osmesa->gl_visual );
_mesa_unreference_framebuffer( &osmesa->gl_buffer );
_mesa_free_context_data( &osmesa->mesa );
_mesa_free( osmesa );
}
}
void
intelDestroyContext(__DRIcontext * driContextPriv)
{
struct brw_context *brw =
(struct brw_context *) driContextPriv->driverPrivate;
struct gl_context *ctx = &brw->ctx;
assert(brw); /* should never be null */
if (brw) {
/* Dump a final BMP in case the application doesn't call SwapBuffers */
if (INTEL_DEBUG & DEBUG_AUB) {
intel_batchbuffer_flush(brw);
aub_dump_bmp(&brw->ctx);
}
_mesa_meta_free(&brw->ctx);
brw->vtbl.destroy(brw);
if (ctx->swrast_context) {
_swsetup_DestroyContext(&brw->ctx);
_tnl_DestroyContext(&brw->ctx);
}
_vbo_DestroyContext(&brw->ctx);
if (ctx->swrast_context)
_swrast_DestroyContext(&brw->ctx);
intel_batchbuffer_free(brw);
drm_intel_bo_unreference(brw->first_post_swapbuffers_batch);
brw->first_post_swapbuffers_batch = NULL;
driDestroyOptionCache(&brw->optionCache);
/* free the Mesa context */
_mesa_free_context_data(&brw->ctx);
ralloc_free(brw);
driContextPriv->driverPrivate = NULL;
}
}
void
glFBDevDestroyContext( GLFBDevContextPtr context )
{
GLFBDevContextPtr fbdevctx = glFBDevGetCurrentContext();
if (context) {
GLcontext *mesaCtx = &context->glcontext;
_swsetup_DestroyContext( mesaCtx );
_swrast_DestroyContext( mesaCtx );
_tnl_DestroyContext( mesaCtx );
_vbo_DestroyContext( mesaCtx );
if (fbdevctx == context) {
/* destroying current context */
_mesa_make_current(NULL, NULL, NULL);
}
_mesa_free_context_data(&context->glcontext);
free(context);
}
}
void st_destroy_context( struct st_context *st )
{
struct pipe_context *pipe = st->pipe;
struct cso_context *cso = st->cso_context;
GLcontext *ctx = st->ctx;
/* need to unbind and destroy CSO objects before anything else */
cso_release_all(st->cso_context);
st_reference_fragprog(st, &st->fp, NULL);
st_reference_vertprog(st, &st->vp, NULL);
_mesa_delete_program_cache(st->ctx, st->pixel_xfer.cache);
_mesa_free_context_data(ctx);
st_destroy_context_priv(st);
cso_destroy_context(cso);
pipe->destroy( pipe );
free(ctx);
}
BOOL sw_DeleteContext(DHGLRC dhglrc)
{
struct sw_context* sw_ctx = (struct sw_context*)dhglrc;
/* Those get clobbered by _mesa_free_context_data via _glapi_set{context,dispath_table} */
void* icd_save = IntGetCurrentICDPrivate();
const GLDISPATCHTABLE* table_save = IntGetCurrentDispatchTable();
/* Destroy everything */
_mesa_meta_free( &sw_ctx->mesa );
_swsetup_DestroyContext( &sw_ctx->mesa );
_tnl_DestroyContext( &sw_ctx->mesa );
_vbo_DestroyContext( &sw_ctx->mesa );
_swrast_DestroyContext( &sw_ctx->mesa );
_mesa_free_context_data( &sw_ctx->mesa );
free( sw_ctx );
/* Restore this */
IntSetCurrentDispatchTable(table_save);
IntSetCurrentICDPrivate(icd_save);
return TRUE;
}
/**
* 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;
}
/**
* Create a new XMesaContext.
* \param v the XMesaVisual
* \param share_list another XMesaContext with which to share display
* lists or NULL if no sharing is wanted.
* \return an XMesaContext or NULL if error.
*/
PUBLIC
XMesaContext XMesaCreateContext( XMesaVisual v, XMesaContext share_list )
{
static GLboolean firstTime = GL_TRUE;
XMesaContext c;
struct gl_context *mesaCtx;
struct dd_function_table functions;
TNLcontext *tnl;
if (firstTime) {
_glthread_INIT_MUTEX(_xmesa_lock);
firstTime = GL_FALSE;
}
/* Note: the XMesaContext contains a Mesa struct gl_context struct (inheritance) */
c = (XMesaContext) CALLOC_STRUCT(xmesa_context);
if (!c)
return NULL;
mesaCtx = &(c->mesa);
/* initialize with default driver functions, then plug in XMesa funcs */
_mesa_init_driver_functions(&functions);
xmesa_init_driver_functions(v, &functions);
if (!_mesa_initialize_context(mesaCtx, API_OPENGL_COMPAT, &v->mesa_visual,
share_list ? &(share_list->mesa) : (struct gl_context *) NULL,
&functions)) {
free(c);
return NULL;
}
/* Enable this to exercise fixed function -> shader translation
* with software rendering.
*/
if (0) {
mesaCtx->VertexProgram._MaintainTnlProgram = GL_TRUE;
mesaCtx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
}
_mesa_enable_sw_extensions(mesaCtx);
_mesa_enable_1_3_extensions(mesaCtx);
_mesa_enable_1_4_extensions(mesaCtx);
_mesa_enable_1_5_extensions(mesaCtx);
_mesa_enable_2_0_extensions(mesaCtx);
_mesa_enable_2_1_extensions(mesaCtx);
if (mesaCtx->Mesa_DXTn) {
mesaCtx->Extensions.EXT_texture_compression_s3tc = GL_TRUE;
mesaCtx->Extensions.ANGLE_texture_compression_dxt = GL_TRUE;
}
mesaCtx->Extensions.TDFX_texture_compression_FXT1 = GL_TRUE;
#if ENABLE_EXT_timer_query
mesaCtx->Extensions.EXT_timer_query = GL_TRUE;
#endif
/* finish up xmesa context initializations */
c->swapbytes = CHECK_BYTE_ORDER(v) ? GL_FALSE : GL_TRUE;
c->xm_visual = v;
c->xm_buffer = NULL; /* set later by XMesaMakeCurrent */
c->display = v->display;
c->pixelformat = v->dithered_pf; /* Dithering is enabled by default */
/* Initialize the software rasterizer and helper modules.
*/
if (!_swrast_CreateContext( mesaCtx ) ||
!_vbo_CreateContext( mesaCtx ) ||
!_tnl_CreateContext( mesaCtx ) ||
!_swsetup_CreateContext( mesaCtx )) {
_mesa_free_context_data(&c->mesa);
free(c);
return NULL;
}
/* tnl setup */
tnl = TNL_CONTEXT(mesaCtx);
tnl->Driver.RunPipeline = _tnl_run_pipeline;
/* swrast setup */
xmesa_register_swrast_functions( mesaCtx );
_swsetup_Wakeup(mesaCtx);
_mesa_meta_init(mesaCtx);
_mesa_compute_version(mesaCtx);
/* Exec table initialization requires the version to be computed */
_mesa_initialize_dispatch_tables(mesaCtx);
_mesa_initialize_vbo_vtxfmt(mesaCtx);
return c;
}
/**
* 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;
}