0,0 → 1,765 |
/* |
* Copyright 2008 George Sapountzis |
* |
* 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 (including the next |
* paragraph) 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 |
* THE AUTHORS OR COPYRIGHT HOLDERS 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. |
*/ |
|
#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) |
|
#include <X11/Xlib.h> |
#include "glxclient.h" |
#include <dlfcn.h> |
#include "dri_common.h" |
|
struct drisw_display |
{ |
__GLXDRIdisplay base; |
}; |
|
struct drisw_context |
{ |
struct glx_context base; |
__DRIcontext *driContext; |
|
}; |
|
struct drisw_screen |
{ |
struct glx_screen base; |
|
__DRIscreen *driScreen; |
__GLXDRIscreen vtable; |
const __DRIcoreExtension *core; |
const __DRIswrastExtension *swrast; |
const __DRItexBufferExtension *texBuffer; |
|
const __DRIconfig **driver_configs; |
|
void *driver; |
}; |
|
struct drisw_drawable |
{ |
__GLXDRIdrawable base; |
|
GC gc; |
GC swapgc; |
|
__DRIdrawable *driDrawable; |
XVisualInfo *visinfo; |
XImage *ximage; |
}; |
|
static Bool |
XCreateDrawable(struct drisw_drawable * pdp, |
Display * dpy, XID drawable, int visualid) |
{ |
XGCValues gcvalues; |
long visMask; |
XVisualInfo visTemp; |
int num_visuals; |
|
/* create GC's */ |
pdp->gc = XCreateGC(dpy, drawable, 0, NULL); |
pdp->swapgc = XCreateGC(dpy, drawable, 0, NULL); |
|
gcvalues.function = GXcopy; |
gcvalues.graphics_exposures = False; |
XChangeGC(dpy, pdp->gc, GCFunction, &gcvalues); |
XChangeGC(dpy, pdp->swapgc, GCFunction, &gcvalues); |
XChangeGC(dpy, pdp->swapgc, GCGraphicsExposures, &gcvalues); |
|
/* visual */ |
visTemp.visualid = visualid; |
visMask = VisualIDMask; |
pdp->visinfo = XGetVisualInfo(dpy, visMask, &visTemp, &num_visuals); |
|
if (!pdp->visinfo || num_visuals == 0) |
return False; |
|
/* create XImage */ |
pdp->ximage = XCreateImage(dpy, |
pdp->visinfo->visual, |
pdp->visinfo->depth, |
ZPixmap, 0, /* format, offset */ |
NULL, /* data */ |
0, 0, /* width, height */ |
32, /* bitmap_pad */ |
0); /* bytes_per_line */ |
|
/** |
* swrast does not handle 24-bit depth with 24 bpp, so let X do the |
* the conversion for us. |
*/ |
if (pdp->ximage->bits_per_pixel == 24) |
pdp->ximage->bits_per_pixel = 32; |
|
return True; |
} |
|
static void |
XDestroyDrawable(struct drisw_drawable * pdp, Display * dpy, XID drawable) |
{ |
XDestroyImage(pdp->ximage); |
free(pdp->visinfo); |
|
XFreeGC(dpy, pdp->gc); |
XFreeGC(dpy, pdp->swapgc); |
} |
|
/** |
* swrast loader functions |
*/ |
|
static void |
swrastGetDrawableInfo(__DRIdrawable * draw, |
int *x, int *y, int *w, int *h, |
void *loaderPrivate) |
{ |
struct drisw_drawable *pdp = loaderPrivate; |
__GLXDRIdrawable *pdraw = &(pdp->base); |
Display *dpy = pdraw->psc->dpy; |
Drawable drawable; |
|
Window root; |
unsigned uw, uh, bw, depth; |
|
drawable = pdraw->xDrawable; |
|
XGetGeometry(dpy, drawable, &root, x, y, &uw, &uh, &bw, &depth); |
*w = uw; |
*h = uh; |
} |
|
/** |
* Align renderbuffer pitch. |
* |
* This should be chosen by the driver and the loader (libGL, xserver/glx) |
* should use the driver provided pitch. |
* |
* It seems that the xorg loader (that is the xserver loading swrast_dri for |
* indirect rendering, not client-side libGL) requires that the pitch is |
* exactly the image width padded to 32 bits. XXX |
* |
* The above restriction can probably be overcome by using ScratchPixmap and |
* CopyArea in the xserver, similar to ShmPutImage, and setting the width of |
* the scratch pixmap to 'pitch / cpp'. |
*/ |
static inline int |
bytes_per_line(unsigned pitch_bits, unsigned mul) |
{ |
unsigned mask = mul - 1; |
|
return ((pitch_bits + mask) & ~mask) / 8; |
} |
|
static void |
swrastPutImage(__DRIdrawable * draw, int op, |
int x, int y, int w, int h, |
char *data, void *loaderPrivate) |
{ |
struct drisw_drawable *pdp = loaderPrivate; |
__GLXDRIdrawable *pdraw = &(pdp->base); |
Display *dpy = pdraw->psc->dpy; |
Drawable drawable; |
XImage *ximage; |
GC gc; |
|
switch (op) { |
case __DRI_SWRAST_IMAGE_OP_DRAW: |
gc = pdp->gc; |
break; |
case __DRI_SWRAST_IMAGE_OP_SWAP: |
gc = pdp->swapgc; |
break; |
default: |
return; |
} |
|
drawable = pdraw->xDrawable; |
|
ximage = pdp->ximage; |
ximage->data = data; |
ximage->width = w; |
ximage->height = h; |
ximage->bytes_per_line = bytes_per_line(w * ximage->bits_per_pixel, 32); |
|
XPutImage(dpy, drawable, gc, ximage, 0, 0, x, y, w, h); |
|
ximage->data = NULL; |
} |
|
static void |
swrastGetImage(__DRIdrawable * read, |
int x, int y, int w, int h, |
char *data, void *loaderPrivate) |
{ |
struct drisw_drawable *prp = loaderPrivate; |
__GLXDRIdrawable *pread = &(prp->base); |
Display *dpy = pread->psc->dpy; |
Drawable readable; |
XImage *ximage; |
|
readable = pread->xDrawable; |
|
ximage = prp->ximage; |
ximage->data = data; |
ximage->width = w; |
ximage->height = h; |
ximage->bytes_per_line = bytes_per_line(w * ximage->bits_per_pixel, 32); |
|
XGetSubImage(dpy, readable, x, y, w, h, ~0L, ZPixmap, ximage, 0, 0); |
|
ximage->data = NULL; |
} |
|
static const __DRIswrastLoaderExtension swrastLoaderExtension = { |
{__DRI_SWRAST_LOADER, __DRI_SWRAST_LOADER_VERSION}, |
swrastGetDrawableInfo, |
swrastPutImage, |
swrastGetImage |
}; |
|
static const __DRIextension *loader_extensions[] = { |
&systemTimeExtension.base, |
&swrastLoaderExtension.base, |
NULL |
}; |
|
/** |
* GLXDRI functions |
*/ |
|
static void |
drisw_destroy_context(struct glx_context *context) |
{ |
struct drisw_context *pcp = (struct drisw_context *) context; |
struct drisw_screen *psc = (struct drisw_screen *) context->psc; |
|
driReleaseDrawables(&pcp->base); |
|
free((char *) context->extensions); |
|
(*psc->core->destroyContext) (pcp->driContext); |
|
free(pcp); |
} |
|
static int |
drisw_bind_context(struct glx_context *context, struct glx_context *old, |
GLXDrawable draw, GLXDrawable read) |
{ |
struct drisw_context *pcp = (struct drisw_context *) context; |
struct drisw_screen *psc = (struct drisw_screen *) pcp->base.psc; |
struct drisw_drawable *pdraw, *pread; |
|
pdraw = (struct drisw_drawable *) driFetchDrawable(context, draw); |
pread = (struct drisw_drawable *) driFetchDrawable(context, read); |
|
driReleaseDrawables(&pcp->base); |
|
if (pdraw == NULL || pread == NULL) |
return GLXBadDrawable; |
|
if ((*psc->core->bindContext) (pcp->driContext, |
pdraw->driDrawable, pread->driDrawable)) |
return Success; |
|
return GLXBadContext; |
} |
|
static void |
drisw_unbind_context(struct glx_context *context, struct glx_context *new) |
{ |
struct drisw_context *pcp = (struct drisw_context *) context; |
struct drisw_screen *psc = (struct drisw_screen *) pcp->base.psc; |
|
(*psc->core->unbindContext) (pcp->driContext); |
} |
|
static void |
drisw_bind_tex_image(Display * dpy, |
GLXDrawable drawable, |
int buffer, const int *attrib_list) |
{ |
struct glx_context *gc = __glXGetCurrentContext(); |
struct drisw_context *pcp = (struct drisw_context *) gc; |
__GLXDRIdrawable *base = GetGLXDRIDrawable(dpy, drawable); |
struct drisw_drawable *pdraw = (struct drisw_drawable *) base; |
struct drisw_screen *psc; |
|
__glXInitialize(dpy); |
|
if (pdraw != NULL) { |
psc = (struct drisw_screen *) base->psc; |
|
if (!psc->texBuffer) |
return; |
|
if (psc->texBuffer->base.version >= 2 && |
psc->texBuffer->setTexBuffer2 != NULL) { |
(*psc->texBuffer->setTexBuffer2) (pcp->driContext, |
pdraw->base.textureTarget, |
pdraw->base.textureFormat, |
pdraw->driDrawable); |
} |
else { |
(*psc->texBuffer->setTexBuffer) (pcp->driContext, |
pdraw->base.textureTarget, |
pdraw->driDrawable); |
} |
} |
} |
|
static void |
drisw_release_tex_image(Display * dpy, GLXDrawable drawable, int buffer) |
{ |
#if __DRI_TEX_BUFFER_VERSION >= 3 |
struct glx_context *gc = __glXGetCurrentContext(); |
struct dri2_context *pcp = (struct dri2_context *) gc; |
__GLXDRIdrawable *base = GetGLXDRIDrawable(dpy, drawable); |
struct glx_display *dpyPriv = __glXInitialize(dpy); |
struct dri2_drawable *pdraw = (struct dri2_drawable *) base; |
struct dri2_screen *psc; |
|
if (pdraw != NULL) { |
psc = (struct dri2_screen *) base->psc; |
|
if (!psc->texBuffer) |
return; |
|
if (psc->texBuffer->base.version >= 3 && |
psc->texBuffer->releaseTexBuffer != NULL) { |
(*psc->texBuffer->releaseTexBuffer) (pcp->driContext, |
pdraw->base.textureTarget, |
pdraw->driDrawable); |
} |
} |
#endif |
} |
|
static const struct glx_context_vtable drisw_context_vtable = { |
drisw_destroy_context, |
drisw_bind_context, |
drisw_unbind_context, |
NULL, |
NULL, |
DRI_glXUseXFont, |
drisw_bind_tex_image, |
drisw_release_tex_image, |
NULL, /* get_proc_address */ |
}; |
|
static struct glx_context * |
drisw_create_context(struct glx_screen *base, |
struct glx_config *config_base, |
struct glx_context *shareList, int renderType) |
{ |
struct drisw_context *pcp, *pcp_shared; |
__GLXDRIconfigPrivate *config = (__GLXDRIconfigPrivate *) config_base; |
struct drisw_screen *psc = (struct drisw_screen *) base; |
__DRIcontext *shared = NULL; |
|
if (!psc->base.driScreen) |
return NULL; |
|
/* Check the renderType value */ |
if (!validate_renderType_against_config(config_base, renderType)) |
return NULL; |
|
if (shareList) { |
/* If the shareList context is not a DRISW context, we cannot possibly |
* create a DRISW context that shares it. |
*/ |
if (shareList->vtable->destroy != drisw_destroy_context) { |
return NULL; |
} |
|
pcp_shared = (struct drisw_context *) shareList; |
shared = pcp_shared->driContext; |
} |
|
pcp = calloc(1, sizeof *pcp); |
if (pcp == NULL) |
return NULL; |
|
if (!glx_context_init(&pcp->base, &psc->base, &config->base)) { |
free(pcp); |
return NULL; |
} |
|
pcp->base.renderType = renderType; |
|
pcp->driContext = |
(*psc->core->createNewContext) (psc->driScreen, |
config->driConfig, shared, pcp); |
if (pcp->driContext == NULL) { |
free(pcp); |
return NULL; |
} |
|
pcp->base.vtable = &drisw_context_vtable; |
|
return &pcp->base; |
} |
|
static struct glx_context * |
drisw_create_context_attribs(struct glx_screen *base, |
struct glx_config *config_base, |
struct glx_context *shareList, |
unsigned num_attribs, |
const uint32_t *attribs, |
unsigned *error) |
{ |
struct drisw_context *pcp, *pcp_shared; |
__GLXDRIconfigPrivate *config = (__GLXDRIconfigPrivate *) config_base; |
struct drisw_screen *psc = (struct drisw_screen *) base; |
__DRIcontext *shared = NULL; |
|
uint32_t minor_ver; |
uint32_t major_ver; |
uint32_t renderType; |
uint32_t flags; |
unsigned api; |
int reset; |
uint32_t ctx_attribs[2 * 4]; |
unsigned num_ctx_attribs = 0; |
|
if (!psc->base.driScreen) |
return NULL; |
|
if (psc->swrast->base.version < 3) |
return NULL; |
|
/* Remap the GLX tokens to DRI2 tokens. |
*/ |
if (!dri2_convert_glx_attribs(num_attribs, attribs, |
&major_ver, &minor_ver, &renderType, &flags, |
&api, &reset, error)) |
return NULL; |
|
/* Check the renderType value */ |
if (!validate_renderType_against_config(config_base, renderType)) { |
return NULL; |
} |
|
if (reset != __DRI_CTX_RESET_NO_NOTIFICATION) |
return NULL; |
|
if (shareList) { |
pcp_shared = (struct drisw_context *) shareList; |
shared = pcp_shared->driContext; |
} |
|
pcp = calloc(1, sizeof *pcp); |
if (pcp == NULL) |
return NULL; |
|
if (!glx_context_init(&pcp->base, &psc->base, &config->base)) { |
free(pcp); |
return NULL; |
} |
|
ctx_attribs[num_ctx_attribs++] = __DRI_CTX_ATTRIB_MAJOR_VERSION; |
ctx_attribs[num_ctx_attribs++] = major_ver; |
ctx_attribs[num_ctx_attribs++] = __DRI_CTX_ATTRIB_MINOR_VERSION; |
ctx_attribs[num_ctx_attribs++] = minor_ver; |
|
if (flags != 0) { |
ctx_attribs[num_ctx_attribs++] = __DRI_CTX_ATTRIB_FLAGS; |
|
/* The current __DRI_CTX_FLAG_* values are identical to the |
* GLX_CONTEXT_*_BIT values. |
*/ |
ctx_attribs[num_ctx_attribs++] = flags; |
} |
|
pcp->base.renderType = renderType; |
|
pcp->driContext = |
(*psc->swrast->createContextAttribs) (psc->driScreen, |
api, |
config->driConfig, |
shared, |
num_ctx_attribs / 2, |
ctx_attribs, |
error, |
pcp); |
if (pcp->driContext == NULL) { |
free(pcp); |
return NULL; |
} |
|
pcp->base.vtable = &drisw_context_vtable; |
|
return &pcp->base; |
} |
|
static void |
driswDestroyDrawable(__GLXDRIdrawable * pdraw) |
{ |
struct drisw_drawable *pdp = (struct drisw_drawable *) pdraw; |
struct drisw_screen *psc = (struct drisw_screen *) pdp->base.psc; |
|
(*psc->core->destroyDrawable) (pdp->driDrawable); |
|
XDestroyDrawable(pdp, pdraw->psc->dpy, pdraw->drawable); |
free(pdp); |
} |
|
static __GLXDRIdrawable * |
driswCreateDrawable(struct glx_screen *base, XID xDrawable, |
GLXDrawable drawable, struct glx_config *modes) |
{ |
struct drisw_drawable *pdp; |
__GLXDRIconfigPrivate *config = (__GLXDRIconfigPrivate *) modes; |
struct drisw_screen *psc = (struct drisw_screen *) base; |
Bool ret; |
const __DRIswrastExtension *swrast = psc->swrast; |
|
pdp = calloc(1, sizeof(*pdp)); |
if (!pdp) |
return NULL; |
|
pdp->base.xDrawable = xDrawable; |
pdp->base.drawable = drawable; |
pdp->base.psc = &psc->base; |
|
ret = XCreateDrawable(pdp, psc->base.dpy, xDrawable, modes->visualID); |
if (!ret) { |
free(pdp); |
return NULL; |
} |
|
/* Create a new drawable */ |
pdp->driDrawable = |
(*swrast->createNewDrawable) (psc->driScreen, config->driConfig, pdp); |
|
if (!pdp->driDrawable) { |
XDestroyDrawable(pdp, psc->base.dpy, xDrawable); |
free(pdp); |
return NULL; |
} |
|
pdp->base.destroyDrawable = driswDestroyDrawable; |
|
return &pdp->base; |
} |
|
static int64_t |
driswSwapBuffers(__GLXDRIdrawable * pdraw, |
int64_t target_msc, int64_t divisor, int64_t remainder, |
Bool flush) |
{ |
struct drisw_drawable *pdp = (struct drisw_drawable *) pdraw; |
struct drisw_screen *psc = (struct drisw_screen *) pdp->base.psc; |
|
(void) target_msc; |
(void) divisor; |
(void) remainder; |
|
if (flush) { |
glFlush(); |
} |
|
(*psc->core->swapBuffers) (pdp->driDrawable); |
|
return 0; |
} |
|
static void |
driswDestroyScreen(struct glx_screen *base) |
{ |
struct drisw_screen *psc = (struct drisw_screen *) base; |
|
/* Free the direct rendering per screen data */ |
(*psc->core->destroyScreen) (psc->driScreen); |
driDestroyConfigs(psc->driver_configs); |
psc->driScreen = NULL; |
if (psc->driver) |
dlclose(psc->driver); |
} |
|
#define SWRAST_DRIVER_NAME "swrast" |
|
static void * |
driOpenSwrast(void) |
{ |
void *driver = NULL; |
|
if (driver == NULL) |
driver = driOpenDriver(SWRAST_DRIVER_NAME); |
|
return driver; |
} |
|
static const struct glx_screen_vtable drisw_screen_vtable = { |
drisw_create_context, |
drisw_create_context_attribs |
}; |
|
static void |
driswBindExtensions(struct drisw_screen *psc, const __DRIextension **extensions) |
{ |
int i; |
|
__glXEnableDirectExtension(&psc->base, "GLX_SGI_make_current_read"); |
|
if (psc->swrast->base.version >= 3) { |
__glXEnableDirectExtension(&psc->base, "GLX_ARB_create_context"); |
__glXEnableDirectExtension(&psc->base, "GLX_ARB_create_context_profile"); |
|
/* DRISW version >= 2 implies support for OpenGL ES 2.0. |
*/ |
__glXEnableDirectExtension(&psc->base, |
"GLX_EXT_create_context_es2_profile"); |
} |
|
/* FIXME: Figure out what other extensions can be ported here from dri2. */ |
for (i = 0; extensions[i]; i++) { |
if ((strcmp(extensions[i]->name, __DRI_TEX_BUFFER) == 0)) { |
psc->texBuffer = (__DRItexBufferExtension *) extensions[i]; |
__glXEnableDirectExtension(&psc->base, "GLX_EXT_texture_from_pixmap"); |
} |
} |
} |
|
static struct glx_screen * |
driswCreateScreen(int screen, struct glx_display *priv) |
{ |
__GLXDRIscreen *psp; |
const __DRIconfig **driver_configs; |
const __DRIextension **extensions; |
struct drisw_screen *psc; |
struct glx_config *configs = NULL, *visuals = NULL; |
int i; |
|
psc = calloc(1, sizeof *psc); |
if (psc == NULL) |
return NULL; |
|
if (!glx_screen_init(&psc->base, screen, priv)) { |
free(psc); |
return NULL; |
} |
|
psc->driver = driOpenSwrast(); |
if (psc->driver == NULL) |
goto handle_error; |
|
extensions = dlsym(psc->driver, __DRI_DRIVER_EXTENSIONS); |
if (extensions == NULL) { |
ErrorMessageF("driver exports no extensions (%s)\n", dlerror()); |
goto handle_error; |
} |
|
for (i = 0; extensions[i]; i++) { |
if (strcmp(extensions[i]->name, __DRI_CORE) == 0) |
psc->core = (__DRIcoreExtension *) extensions[i]; |
if (strcmp(extensions[i]->name, __DRI_SWRAST) == 0) |
psc->swrast = (__DRIswrastExtension *) extensions[i]; |
} |
|
if (psc->core == NULL || psc->swrast == NULL) { |
ErrorMessageF("core dri extension not found\n"); |
goto handle_error; |
} |
|
psc->driScreen = |
psc->swrast->createNewScreen(screen, loader_extensions, |
&driver_configs, psc); |
if (psc->driScreen == NULL) { |
ErrorMessageF("failed to create dri screen\n"); |
goto handle_error; |
} |
|
extensions = psc->core->getExtensions(psc->driScreen); |
driswBindExtensions(psc, extensions); |
|
configs = driConvertConfigs(psc->core, psc->base.configs, driver_configs); |
visuals = driConvertConfigs(psc->core, psc->base.visuals, driver_configs); |
|
if (!configs || !visuals) |
goto handle_error; |
|
glx_config_destroy_list(psc->base.configs); |
psc->base.configs = configs; |
glx_config_destroy_list(psc->base.visuals); |
psc->base.visuals = visuals; |
|
psc->driver_configs = driver_configs; |
|
psc->base.vtable = &drisw_screen_vtable; |
psp = &psc->vtable; |
psc->base.driScreen = psp; |
psp->destroyScreen = driswDestroyScreen; |
psp->createDrawable = driswCreateDrawable; |
psp->swapBuffers = driswSwapBuffers; |
|
return &psc->base; |
|
handle_error: |
if (configs) |
glx_config_destroy_list(configs); |
if (visuals) |
glx_config_destroy_list(visuals); |
if (psc->driScreen) |
psc->core->destroyScreen(psc->driScreen); |
psc->driScreen = NULL; |
|
if (psc->driver) |
dlclose(psc->driver); |
glx_screen_cleanup(&psc->base); |
free(psc); |
|
CriticalErrorMessageF("failed to load driver: %s\n", SWRAST_DRIVER_NAME); |
|
return NULL; |
} |
|
/* Called from __glXFreeDisplayPrivate. |
*/ |
static void |
driswDestroyDisplay(__GLXDRIdisplay * dpy) |
{ |
free(dpy); |
} |
|
/* |
* Allocate, initialize and return a __DRIdisplayPrivate object. |
* This is called from __glXInitialize() when we are given a new |
* display pointer. |
*/ |
_X_HIDDEN __GLXDRIdisplay * |
driswCreateDisplay(Display * dpy) |
{ |
struct drisw_display *pdpyp; |
|
pdpyp = malloc(sizeof *pdpyp); |
if (pdpyp == NULL) |
return NULL; |
|
pdpyp->base.destroyDisplay = driswDestroyDisplay; |
pdpyp->base.createScreen = driswCreateScreen; |
|
return &pdpyp->base; |
} |
|
#endif /* GLX_DIRECT_RENDERING */ |