static GLboolean
dri_create_context(gl_api api,
const struct gl_config * visual,
__DRIcontext * cPriv,
unsigned major_version,
unsigned minor_version,
uint32_t flags,
unsigned *error,
void *sharedContextPrivate)
{
struct dri_context *ctx = NULL;
struct dri_context *share = (struct dri_context *)sharedContextPrivate;
struct gl_context *mesaCtx = NULL;
struct gl_context *sharedCtx = NULL;
struct dd_function_table functions;
TRACE;
/* Flag filtering is handled in dri2CreateContextAttribs.
*/
(void) flags;
if (api == API_OPENGL
&& (major_version > 2
|| (major_version == 2 && minor_version > 1))) {
*error = __DRI_CTX_ERROR_BAD_VERSION;
goto context_fail;
}
ctx = CALLOC_STRUCT(dri_context);
if (ctx == NULL) {
*error = __DRI_CTX_ERROR_NO_MEMORY;
goto context_fail;
}
cPriv->driverPrivate = ctx;
ctx->cPriv = cPriv;
/* build table of device driver functions */
_mesa_init_driver_functions(&functions);
swrast_init_driver_functions(&functions);
if (share) {
sharedCtx = &share->Base;
}
mesaCtx = &ctx->Base;
/* basic context setup */
if (!_mesa_initialize_context(mesaCtx, api, visual, sharedCtx, &functions, (void *) cPriv)) {
*error = __DRI_CTX_ERROR_NO_MEMORY;
goto context_fail;
}
/* do bounds checking to prevent segfaults and server crashes! */
mesaCtx->Const.CheckArrayBounds = GL_TRUE;
/* create module contexts */
_swrast_CreateContext( mesaCtx );
_vbo_CreateContext( mesaCtx );
_tnl_CreateContext( mesaCtx );
_swsetup_CreateContext( mesaCtx );
_swsetup_Wakeup( mesaCtx );
/* use default TCL pipeline */
{
TNLcontext *tnl = TNL_CONTEXT(mesaCtx);
tnl->Driver.RunPipeline = _tnl_run_pipeline;
}
_mesa_meta_init(mesaCtx);
_mesa_enable_sw_extensions(mesaCtx);
switch (api) {
case API_OPENGL_CORE:
/* XXX fix me, fall-through for now */
case API_OPENGL:
_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);
break;
case API_OPENGLES:
_mesa_enable_1_3_extensions(mesaCtx);
_mesa_enable_1_4_extensions(mesaCtx);
_mesa_enable_1_5_extensions(mesaCtx);
break;
case API_OPENGLES2:
InitExtensionsES2( mesaCtx);
break;
}
*error = __DRI_CTX_ERROR_SUCCESS;
return GL_TRUE;
context_fail:
FREE(ctx);
return GL_FALSE;
}
static GLboolean
dri_create_context(gl_api api,
const struct gl_config * visual,
__DRIcontext * cPriv,
unsigned major_version,
unsigned minor_version,
uint32_t flags,
unsigned *error,
void *sharedContextPrivate)
{
struct dri_context *ctx = NULL;
struct dri_context *share = (struct dri_context *)sharedContextPrivate;
struct gl_context *mesaCtx = NULL;
struct gl_context *sharedCtx = NULL;
struct dd_function_table functions;
TRACE;
/* Flag filtering is handled in dri2CreateContextAttribs.
*/
(void) flags;
ctx = CALLOC_STRUCT(dri_context);
if (ctx == NULL) {
*error = __DRI_CTX_ERROR_NO_MEMORY;
goto context_fail;
}
cPriv->driverPrivate = ctx;
ctx->cPriv = cPriv;
/* build table of device driver functions */
_mesa_init_driver_functions(&functions);
swrast_init_driver_functions(&functions);
if (share) {
sharedCtx = &share->Base;
}
mesaCtx = &ctx->Base;
/* basic context setup */
if (!_mesa_initialize_context(mesaCtx, api, visual, sharedCtx, &functions)) {
*error = __DRI_CTX_ERROR_NO_MEMORY;
goto context_fail;
}
/* do bounds checking to prevent segfaults and server crashes! */
mesaCtx->Const.CheckArrayBounds = GL_TRUE;
/* create module contexts */
_swrast_CreateContext( mesaCtx );
_vbo_CreateContext( mesaCtx );
_tnl_CreateContext( mesaCtx );
_swsetup_CreateContext( mesaCtx );
_swsetup_Wakeup( mesaCtx );
/* use default TCL pipeline */
{
TNLcontext *tnl = TNL_CONTEXT(mesaCtx);
tnl->Driver.RunPipeline = _tnl_run_pipeline;
}
_mesa_meta_init(mesaCtx);
_mesa_enable_sw_extensions(mesaCtx);
_mesa_compute_version(mesaCtx);
_mesa_initialize_dispatch_tables(mesaCtx);
_mesa_initialize_vbo_vtxfmt(mesaCtx);
*error = __DRI_CTX_ERROR_SUCCESS;
return GL_TRUE;
context_fail:
free(ctx);
return GL_FALSE;
}
MesaSoftwareRenderer::MesaSoftwareRenderer(BGLView* view, ulong options,
BGLDispatcher* dispatcher)
: BGLRenderer(view, options, dispatcher),
fBitmap(NULL),
fDirectModeEnabled(false),
fInfo(NULL),
fInfoLocker("info locker"),
fContext(NULL),
fVisual(NULL),
fFrameBuffer(NULL),
fFrontRenderBuffer(NULL),
fBackRenderBuffer(NULL),
fColorSpace(B_NO_COLOR_SPACE)
{
CALLED();
fClearColor[BE_RCOMP] = 0;
fClearColor[BE_GCOMP] = 0;
fClearColor[BE_BCOMP] = 0;
fClearColor[BE_ACOMP] = 0;
fClearIndex = 0;
fColorSpace = BScreen(GLView()->Window()).ColorSpace();
// We force single buffering for the time being
//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;
fOptions = options; // | BGL_INDIRECT;
struct dd_function_table functions;
fVisual = _mesa_create_visual(rgbFlag, dblFlag, stereoFlag, red, green,
blue, alpha, index, depth, stencil, accum, accum, accum,
alpha ? accum : 0, 1);
// Initialize device driver function table
_mesa_init_driver_functions(&functions);
functions.GetString = _GetString;
functions.UpdateState = _UpdateState;
functions.GetBufferSize = NULL;
functions.Error = _Error;
functions.Viewport = _Viewport;
functions.Flush = _Flush;
// create core context
fContext = _mesa_create_context(fVisual, NULL, &functions, this);
if (!fContext) {
_mesa_destroy_visual(fVisual);
return;
}
/* Initialize the software rasterizer and helper modules. */
_swrast_CreateContext(fContext);
_vbo_CreateContext(fContext);
_tnl_CreateContext(fContext);
_swsetup_CreateContext(fContext);
_swsetup_Wakeup(fContext);
// Use default TCL pipeline
TNL_CONTEXT(fContext)->Driver.RunPipeline = _tnl_run_pipeline;
_mesa_enable_sw_extensions(fContext);
_mesa_enable_1_3_extensions(fContext);
_mesa_enable_1_4_extensions(fContext);
_mesa_enable_1_5_extensions(fContext);
_mesa_enable_2_0_extensions(fContext);
_mesa_enable_2_1_extensions(fContext);
// create core framebuffer
fFrameBuffer = (struct msr_framebuffer*)_mesa_calloc(
sizeof(*fFrameBuffer));
_mesa_initialize_framebuffer(&fFrameBuffer->Base, fVisual);
fFrontRenderBuffer = (struct msr_renderbuffer*)_mesa_calloc(
sizeof(*fFrontRenderBuffer));
_mesa_init_renderbuffer(&fFrontRenderBuffer->Base, 0);
fFrontRenderBuffer->Base.AllocStorage = _FrontRenderbufferStorage;
fFrontRenderBuffer->Base.Data = NULL;
fFrontRenderBuffer->Base.InternalFormat = GL_RGBA;
fFrontRenderBuffer->Base._BaseFormat = GL_RGBA;
fFrontRenderBuffer->Base.DataType = GL_UNSIGNED_BYTE;
fFrontRenderBuffer->Base.RedBits = 8 * sizeof(GLubyte);
fFrontRenderBuffer->Base.GreenBits = 8 * sizeof(GLubyte);
fFrontRenderBuffer->Base.BlueBits = 8 * sizeof(GLubyte);
fFrontRenderBuffer->Base.AlphaBits = 8 * sizeof(GLubyte);
_SetSpanFuncs(fFrontRenderBuffer, fColorSpace);
_mesa_add_renderbuffer(&fFrameBuffer->Base, BUFFER_FRONT_LEFT,
&fFrontRenderBuffer->Base);
if (dblFlag) {
fBackRenderBuffer = (struct msr_renderbuffer*)_mesa_calloc(
sizeof(*fBackRenderBuffer));
_mesa_init_renderbuffer(&fBackRenderBuffer->Base, 0);
fBackRenderBuffer->Base.AllocStorage = _BackRenderbufferStorage;
fBackRenderBuffer->Base.Data = NULL;
fBackRenderBuffer->Base.Delete = _DeleteBackBuffer;
fBackRenderBuffer->Base.InternalFormat = GL_RGBA;
fBackRenderBuffer->Base._BaseFormat = GL_RGBA;
fBackRenderBuffer->Base.DataType = GL_UNSIGNED_BYTE;
fBackRenderBuffer->Base.RedBits = 8 * sizeof(GLubyte);
fBackRenderBuffer->Base.GreenBits = 8 * sizeof(GLubyte);
fBackRenderBuffer->Base.BlueBits = 8 * sizeof(GLubyte);
fBackRenderBuffer->Base.AlphaBits = 8 * sizeof(GLubyte);
_SetSpanFuncs(fBackRenderBuffer, fColorSpace);
_mesa_add_renderbuffer(&fFrameBuffer->Base, BUFFER_BACK_LEFT,
&fBackRenderBuffer->Base);
}
_mesa_add_soft_renderbuffers(&fFrameBuffer->Base, GL_FALSE,
fVisual->haveDepthBuffer, fVisual->haveStencilBuffer,
fVisual->haveAccumBuffer, alphaFlag, GL_FALSE);
BRect bounds = view->Bounds();
fWidth = fNewWidth = (GLint)bounds.Width();
fHeight = fNewHeight = (GLint)bounds.Height();
// some stupid applications (Quake2) don't even think about calling LockGL()
// before using glGetString and its glGet*() 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();
}
}