diff options
Diffstat (limited to 'src/gallium/state_trackers/egl_g3d/x11/native_dri2.c')
-rw-r--r-- | src/gallium/state_trackers/egl_g3d/x11/native_dri2.c | 707 |
1 files changed, 707 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/egl_g3d/x11/native_dri2.c b/src/gallium/state_trackers/egl_g3d/x11/native_dri2.c new file mode 100644 index 0000000000..2192a1366d --- /dev/null +++ b/src/gallium/state_trackers/egl_g3d/x11/native_dri2.c @@ -0,0 +1,707 @@ +/* + * Mesa 3-D graphics library + * Version: 7.8 + * + * Copyright (C) 2009-2010 Chia-I Wu <olv@0xlab.org> + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#include "util/u_memory.h" +#include "util/u_math.h" +#include "util/u_format.h" +#include "pipe/p_compiler.h" +#include "pipe/p_screen.h" +#include "pipe/p_context.h" +#include "pipe/p_state.h" +#include "state_tracker/drm_api.h" +#include "egllog.h" + +#include "native_x11.h" +#include "x11_screen.h" + +enum dri2_surface_type { + DRI2_SURFACE_TYPE_WINDOW, + DRI2_SURFACE_TYPE_PIXMAP, + DRI2_SURFACE_TYPE_PBUFFER +}; + +struct dri2_display { + struct native_display base; + Display *dpy; + boolean own_dpy; + + struct drm_api *api; + struct x11_screen *xscr; + int xscr_number; + + struct dri2_config *configs; + int num_configs; +}; + +struct dri2_surface { + struct native_surface base; + Drawable drawable; + enum dri2_surface_type type; + enum pipe_format color_format; + struct dri2_display *dri2dpy; + + struct pipe_texture *pbuffer_textures[NUM_NATIVE_ATTACHMENTS]; + boolean have_back, have_fake; + int width, height; + unsigned int sequence_number; +}; + +struct dri2_config { + struct native_config base; +}; + +static INLINE struct dri2_display * +dri2_display(const struct native_display *ndpy) +{ + return (struct dri2_display *) ndpy; +} + +static INLINE struct dri2_surface * +dri2_surface(const struct native_surface *nsurf) +{ + return (struct dri2_surface *) nsurf; +} + +static INLINE struct dri2_config * +dri2_config(const struct native_config *nconf) +{ + return (struct dri2_config *) nconf; +} + +static boolean +dri2_surface_flush_frontbuffer(struct native_surface *nsurf) +{ + struct dri2_surface *dri2surf = dri2_surface(nsurf); + struct dri2_display *dri2dpy = dri2surf->dri2dpy; + + /* pbuffer is private */ + if (dri2surf->type == DRI2_SURFACE_TYPE_PBUFFER) + return TRUE; + + /* copy to real front buffer */ + if (dri2surf->have_fake) + x11_drawable_copy_buffers(dri2dpy->xscr, dri2surf->drawable, + 0, 0, dri2surf->width, dri2surf->height, + DRI2BufferFakeFrontLeft, DRI2BufferFrontLeft); + + return TRUE; +} + +static boolean +dri2_surface_swap_buffers(struct native_surface *nsurf) +{ + struct dri2_surface *dri2surf = dri2_surface(nsurf); + struct dri2_display *dri2dpy = dri2surf->dri2dpy; + + /* pbuffer is private */ + if (dri2surf->type == DRI2_SURFACE_TYPE_PBUFFER) + return TRUE; + + /* copy to front buffer */ + if (dri2surf->have_back) + x11_drawable_copy_buffers(dri2dpy->xscr, dri2surf->drawable, + 0, 0, dri2surf->width, dri2surf->height, + DRI2BufferBackLeft, DRI2BufferFrontLeft); + + /* and update fake front buffer */ + if (dri2surf->have_fake) + x11_drawable_copy_buffers(dri2dpy->xscr, dri2surf->drawable, + 0, 0, dri2surf->width, dri2surf->height, + DRI2BufferFrontLeft, DRI2BufferFakeFrontLeft); + + return TRUE; +} + +static boolean +dri2_surface_validate(struct native_surface *nsurf, + const enum native_attachment *natts, + unsigned num_natts, + unsigned int *seq_num, + struct pipe_texture **textures, + int *width, int *height) +{ + struct dri2_surface *dri2surf = dri2_surface(nsurf); + struct dri2_display *dri2dpy = dri2surf->dri2dpy; + unsigned int dri2atts[NUM_NATIVE_ATTACHMENTS]; + EGLint texture_indices[NUM_NATIVE_ATTACHMENTS]; + struct pipe_texture templ; + struct x11_drawable_buffer *xbufs; + int num_ins, num_outs, i; + + if (num_natts) { + memset(&templ, 0, sizeof(templ)); + templ.target = PIPE_TEXTURE_2D; + templ.last_level = 0; + templ.width0 = dri2surf->width; + templ.height0 = dri2surf->height; + templ.depth0 = 1; + templ.format = dri2surf->color_format; + templ.tex_usage = PIPE_TEXTURE_USAGE_RENDER_TARGET; + + if (textures) + memset(textures, 0, sizeof(*textures) * num_natts); + } + + /* create textures for pbuffer */ + if (dri2surf->type == DRI2_SURFACE_TYPE_PBUFFER) { + struct pipe_screen *screen = dri2dpy->base.screen; + + for (i = 0; i < num_natts; i++) { + enum native_attachment natt = natts[i]; + struct pipe_texture *ptex = dri2surf->pbuffer_textures[natt]; + + if (!ptex) { + ptex = screen->texture_create(screen, &templ); + dri2surf->pbuffer_textures[natt] = ptex; + } + + if (textures) + pipe_texture_reference(&textures[i], ptex); + } + + if (seq_num) + *seq_num = dri2surf->sequence_number; + if (width) + *width = dri2surf->width; + if (height) + *height = dri2surf->height; + + return TRUE; + } + + for (i = 0; i < NUM_NATIVE_ATTACHMENTS; i++) + texture_indices[i] = -1; + + /* prepare the attachments */ + num_ins = num_natts; + for (i = 0; i < num_natts; i++) { + unsigned int dri2att; + + switch (natts[i]) { + case NATIVE_ATTACHMENT_FRONT_LEFT: + dri2att = DRI2BufferFrontLeft; + break; + case NATIVE_ATTACHMENT_BACK_LEFT: + dri2att = DRI2BufferBackLeft; + break; + case NATIVE_ATTACHMENT_FRONT_RIGHT: + dri2att = DRI2BufferFrontRight; + break; + case NATIVE_ATTACHMENT_BACK_RIGHT: + dri2att = DRI2BufferBackRight; + break; + default: + assert(0); + dri2att = 0; + break; + } + dri2atts[i] = dri2att; + texture_indices[natts[i]] = i; + } + + dri2surf->have_back = FALSE; + dri2surf->have_fake = FALSE; + + /* remember old geometry */ + templ.width0 = dri2surf->width; + templ.height0 = dri2surf->height; + + xbufs = x11_drawable_get_buffers(dri2dpy->xscr, dri2surf->drawable, + &dri2surf->width, &dri2surf->height, + dri2atts, FALSE, num_ins, &num_outs); + if (!xbufs) + return FALSE; + + if (templ.width0 != dri2surf->width || templ.height0 != dri2surf->height) { + /* are there cases where the buffers change and the geometry doesn't? */ + dri2surf->sequence_number++; + + templ.width0 = dri2surf->width; + templ.height0 = dri2surf->height; + } + + for (i = 0; i < num_outs; i++) { + struct x11_drawable_buffer *xbuf = &xbufs[i]; + const char *desc; + enum native_attachment natt; + + switch (xbuf->attachment) { + case DRI2BufferFrontLeft: + natt = NATIVE_ATTACHMENT_FRONT_LEFT; + desc = "DRI2 Front Buffer"; + break; + case DRI2BufferFakeFrontLeft: + natt = NATIVE_ATTACHMENT_FRONT_LEFT; + desc = "DRI2 Fake Front Buffer"; + dri2surf->have_fake = TRUE; + break; + case DRI2BufferBackLeft: + natt = NATIVE_ATTACHMENT_BACK_LEFT; + desc = "DRI2 Back Buffer"; + dri2surf->have_back = TRUE; + break; + default: + desc = NULL; + break; + } + + if (!desc || texture_indices[natt] < 0 || + (textures && textures[texture_indices[natt]])) { + if (!desc) + _eglLog(_EGL_WARNING, "unknown buffer %d", xbuf->attachment); + else if (texture_indices[natt] < 0) + _eglLog(_EGL_WARNING, "unexpected buffer %d", xbuf->attachment); + else if (textures && textures[texture_indices[natt]]) + _eglLog(_EGL_WARNING, "both real and fake front buffers are listed"); + continue; + } + + if (textures) { + struct pipe_texture *ptex = + dri2dpy->api->texture_from_shared_handle(dri2dpy->api, + dri2dpy->base.screen, &templ, + desc, xbuf->pitch, xbuf->name); + if (ptex) { + /* the caller owns the textures */ + textures[texture_indices[natt]] = ptex; + } + } + } + + free(xbufs); + + if (seq_num) + *seq_num = dri2surf->sequence_number; + if (width) + *width = dri2surf->width; + if (height) + *height = dri2surf->height; + + return TRUE; +} + +static void +dri2_surface_wait(struct native_surface *nsurf) +{ + struct dri2_surface *dri2surf = dri2_surface(nsurf); + struct dri2_display *dri2dpy = dri2surf->dri2dpy; + + if (dri2surf->have_fake) { + x11_drawable_copy_buffers(dri2dpy->xscr, dri2surf->drawable, + 0, 0, dri2surf->width, dri2surf->height, + DRI2BufferFrontLeft, DRI2BufferFakeFrontLeft); + } +} + +static void +dri2_surface_destroy(struct native_surface *nsurf) +{ + struct dri2_surface *dri2surf = dri2_surface(nsurf); + int i; + + for (i = 0; i < NUM_NATIVE_ATTACHMENTS; i++) { + struct pipe_texture *ptex = dri2surf->pbuffer_textures[i]; + pipe_texture_reference(&ptex, NULL); + } + + if (dri2surf->drawable) + x11_drawable_enable_dri2(dri2surf->dri2dpy->xscr, + dri2surf->drawable, FALSE); + free(dri2surf); +} + +static struct dri2_surface * +dri2_display_create_surface(struct native_display *ndpy, + enum dri2_surface_type type, + Drawable drawable, + const struct native_config *nconf) +{ + struct dri2_display *dri2dpy = dri2_display(ndpy); + struct dri2_config *dri2conf = dri2_config(nconf); + struct dri2_surface *dri2surf; + + dri2surf = CALLOC_STRUCT(dri2_surface); + if (!dri2surf) + return NULL; + + if (drawable) + x11_drawable_enable_dri2(dri2dpy->xscr, drawable, TRUE); + + dri2surf->dri2dpy = dri2dpy; + dri2surf->type = type; + dri2surf->drawable = drawable; + dri2surf->color_format = dri2conf->base.color_format; + + dri2surf->base.destroy = dri2_surface_destroy; + dri2surf->base.swap_buffers = dri2_surface_swap_buffers; + dri2surf->base.flush_frontbuffer = dri2_surface_flush_frontbuffer; + dri2surf->base.validate = dri2_surface_validate; + dri2surf->base.wait = dri2_surface_wait; + + return dri2surf; +} + +static struct native_surface * +dri2_display_create_window_surface(struct native_display *ndpy, + EGLNativeWindowType win, + const struct native_config *nconf) +{ + struct dri2_surface *dri2surf; + + dri2surf = dri2_display_create_surface(ndpy, DRI2_SURFACE_TYPE_WINDOW, + (Drawable) win, nconf); + return (dri2surf) ? &dri2surf->base : NULL; +} + +static struct native_surface * +dri2_display_create_pixmap_surface(struct native_display *ndpy, + EGLNativePixmapType pix, + const struct native_config *nconf) +{ + struct dri2_surface *dri2surf; + + dri2surf = dri2_display_create_surface(ndpy, DRI2_SURFACE_TYPE_PIXMAP, + (Drawable) pix, nconf); + return (dri2surf) ? &dri2surf->base : NULL; +} + +static struct native_surface * +dri2_display_create_pbuffer_surface(struct native_display *ndpy, + const struct native_config *nconf, + uint width, uint height) +{ + struct dri2_surface *dri2surf; + + dri2surf = dri2_display_create_surface(ndpy, DRI2_SURFACE_TYPE_PBUFFER, + (Drawable) None, nconf); + if (dri2surf) { + dri2surf->width = width; + dri2surf->height = height; + } + return (dri2surf) ? &dri2surf->base : NULL; +} + +static struct pipe_context * +dri2_display_create_context(struct native_display *ndpy, void *context_private) +{ + struct dri2_display *dri2dpy = dri2_display(ndpy); + struct pipe_context *pctx; + + pctx = dri2dpy->api->create_context(dri2dpy->api, dri2dpy->base.screen); + if (pctx) + pctx->priv = context_private; + return pctx; +} + +static int +choose_color_format(const __GLcontextModes *mode, enum pipe_format formats[32]) +{ + int count = 0; + + switch (mode->rgbBits) { + case 32: + formats[count++] = PIPE_FORMAT_A8R8G8B8_UNORM; + formats[count++] = PIPE_FORMAT_B8G8R8A8_UNORM; + break; + case 24: + formats[count++] = PIPE_FORMAT_X8R8G8B8_UNORM; + formats[count++] = PIPE_FORMAT_B8G8R8X8_UNORM; + formats[count++] = PIPE_FORMAT_A8R8G8B8_UNORM; + formats[count++] = PIPE_FORMAT_B8G8R8A8_UNORM; + break; + case 16: + formats[count++] = PIPE_FORMAT_R5G6B5_UNORM; + break; + default: + break; + } + + return count; +} + +static int +choose_depth_stencil_format(const __GLcontextModes *mode, + enum pipe_format formats[32]) +{ + int count = 0; + + switch (mode->depthBits) { + case 32: + formats[count++] = PIPE_FORMAT_Z32_UNORM; + break; + case 24: + if (mode->stencilBits) { + formats[count++] = PIPE_FORMAT_S8Z24_UNORM; + formats[count++] = PIPE_FORMAT_Z24S8_UNORM; + } + else { + formats[count++] = PIPE_FORMAT_X8Z24_UNORM; + formats[count++] = PIPE_FORMAT_Z24X8_UNORM; + } + break; + case 16: + formats[count++] = PIPE_FORMAT_Z16_UNORM; + break; + default: + break; + } + + return count; +} + +static boolean +is_format_supported(struct pipe_screen *screen, + enum pipe_format fmt, boolean is_color) +{ + return screen->is_format_supported(screen, fmt, PIPE_TEXTURE_2D, + (is_color) ? PIPE_TEXTURE_USAGE_RENDER_TARGET : + PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0); +} + +static boolean +dri2_display_convert_config(struct native_display *ndpy, + const __GLcontextModes *mode, + struct native_config *nconf) +{ + enum pipe_format formats[32]; + int num_formats, i; + + if (!(mode->renderType & GLX_RGBA_BIT) || !mode->rgbMode) + return FALSE; + + /* skip single-buffered configs */ + if (!mode->doubleBufferMode) + return FALSE; + + nconf->mode = *mode; + nconf->mode.renderType = GLX_RGBA_BIT; + nconf->mode.rgbMode = TRUE; + /* pbuffer is allocated locally and is always supported */ + nconf->mode.drawableType |= GLX_PBUFFER_BIT; + /* the swap method is always copy */ + nconf->mode.swapMethod = GLX_SWAP_COPY_OML; + + /* fix up */ + nconf->mode.rgbBits = + nconf->mode.redBits + nconf->mode.greenBits + + nconf->mode.blueBits + nconf->mode.alphaBits; + if (!(nconf->mode.drawableType & GLX_WINDOW_BIT)) { + nconf->mode.visualID = 0; + nconf->mode.visualType = GLX_NONE; + } + if (!(nconf->mode.drawableType & GLX_PBUFFER_BIT)) { + nconf->mode.bindToTextureRgb = FALSE; + nconf->mode.bindToTextureRgba = FALSE; + } + + nconf->color_format = PIPE_FORMAT_NONE; + nconf->depth_format = PIPE_FORMAT_NONE; + nconf->stencil_format = PIPE_FORMAT_NONE; + + /* choose color format */ + num_formats = choose_color_format(mode, formats); + for (i = 0; i < num_formats; i++) { + if (is_format_supported(ndpy->screen, formats[i], TRUE)) { + nconf->color_format = formats[i]; + break; + } + } + if (nconf->color_format == PIPE_FORMAT_NONE) + return FALSE; + + /* choose depth/stencil format */ + num_formats = choose_depth_stencil_format(mode, formats); + for (i = 0; i < num_formats; i++) { + if (is_format_supported(ndpy->screen, formats[i], FALSE)) { + nconf->depth_format = formats[i]; + nconf->stencil_format = formats[i]; + break; + } + } + if ((nconf->mode.depthBits && nconf->depth_format == PIPE_FORMAT_NONE) || + (nconf->mode.stencilBits && nconf->stencil_format == PIPE_FORMAT_NONE)) + return FALSE; + + return TRUE; +} + +static const struct native_config ** +dri2_display_get_configs(struct native_display *ndpy, int *num_configs) +{ + struct dri2_display *dri2dpy = dri2_display(ndpy); + const struct native_config **configs; + int i; + + /* first time */ + if (!dri2dpy->configs) { + const __GLcontextModes *modes; + int num_modes, count; + + modes = x11_screen_get_glx_configs(dri2dpy->xscr); + if (!modes) + return NULL; + num_modes = x11_context_modes_count(modes); + + dri2dpy->configs = calloc(num_modes, sizeof(*dri2dpy->configs)); + if (!dri2dpy->configs) + return NULL; + + count = 0; + for (i = 0; i < num_modes; i++) { + struct native_config *nconf = &dri2dpy->configs[count].base; + if (dri2_display_convert_config(&dri2dpy->base, modes, nconf)) + count++; + modes = modes->next; + } + + dri2dpy->num_configs = count; + } + + configs = malloc(dri2dpy->num_configs * sizeof(*configs)); + if (configs) { + for (i = 0; i < dri2dpy->num_configs; i++) + configs[i] = (const struct native_config *) &dri2dpy->configs[i]; + if (num_configs) + *num_configs = dri2dpy->num_configs; + } + + return configs; +} + +static void +dri2_display_destroy(struct native_display *ndpy) +{ + struct dri2_display *dri2dpy = dri2_display(ndpy); + + if (dri2dpy->configs) + free(dri2dpy->configs); + + if (dri2dpy->base.screen) + dri2dpy->base.screen->destroy(dri2dpy->base.screen); + + if (dri2dpy->xscr) + x11_screen_destroy(dri2dpy->xscr); + if (dri2dpy->own_dpy) + XCloseDisplay(dri2dpy->dpy); + if (dri2dpy->api && dri2dpy->api->destroy) + dri2dpy->api->destroy(dri2dpy->api); + free(dri2dpy); +} + +/** + * Initialize DRI2 and pipe screen. + */ +static boolean +dri2_display_init_screen(struct native_display *ndpy) +{ + struct dri2_display *dri2dpy = dri2_display(ndpy); + const char *driver = dri2dpy->api->name; + struct drm_create_screen_arg arg; + int fd; + + if (!x11_screen_support(dri2dpy->xscr, X11_SCREEN_EXTENSION_DRI2) || + !x11_screen_support(dri2dpy->xscr, X11_SCREEN_EXTENSION_GLX)) { + _eglLog(_EGL_WARNING, "GLX/DRI2 is not supported"); + return FALSE; + } + + fd = x11_screen_enable_dri2(dri2dpy->xscr, driver); + if (fd < 0) + return FALSE; + + memset(&arg, 0, sizeof(arg)); + arg.mode = DRM_CREATE_NORMAL; + dri2dpy->base.screen = dri2dpy->api->create_screen(dri2dpy->api, fd, &arg); + if (!dri2dpy->base.screen) { + _eglLog(_EGL_WARNING, "failed to create DRM screen"); + return FALSE; + } + + return TRUE; +} + +static void +dri2_display_flush_frontbuffer(void *dummy, struct pipe_surface *surf, + void *context_private) +{ + /* TODO get native surface from context private, and remove the callback */ + _eglLog(_EGL_WARNING, "flush_frontbuffer is not supplied"); +} + +struct native_display * +x11_create_dri2_display(EGLNativeDisplayType dpy, + struct drm_api *api, + native_flush_frontbuffer flush_frontbuffer) +{ + struct dri2_display *dri2dpy; + + dri2dpy = CALLOC_STRUCT(dri2_display); + if (!dri2dpy) + return NULL; + + dri2dpy->api = api; + if (!dri2dpy->api) { + _eglLog(_EGL_WARNING, "failed to create DRM API"); + free(dri2dpy); + return NULL; + } + + dri2dpy->dpy = dpy; + if (!dri2dpy->dpy) { + dri2dpy->dpy = XOpenDisplay(NULL); + if (!dri2dpy->dpy) { + dri2_display_destroy(&dri2dpy->base); + return NULL; + } + dri2dpy->own_dpy = TRUE; + } + + dri2dpy->xscr_number = DefaultScreen(dri2dpy->dpy); + dri2dpy->xscr = x11_screen_create(dri2dpy->dpy, dri2dpy->xscr_number); + if (!dri2dpy->xscr) { + dri2_display_destroy(&dri2dpy->base); + return NULL; + } + + if (!dri2_display_init_screen(&dri2dpy->base)) { + dri2_display_destroy(&dri2dpy->base); + return NULL; + } + + if (!flush_frontbuffer) + flush_frontbuffer = dri2_display_flush_frontbuffer; + + dri2dpy->base.screen->flush_frontbuffer = + (void (*)(struct pipe_screen *, struct pipe_surface *, void *)) + flush_frontbuffer; + + dri2dpy->base.destroy = dri2_display_destroy; + dri2dpy->base.get_configs = dri2_display_get_configs; + dri2dpy->base.create_context = dri2_display_create_context; + dri2dpy->base.create_window_surface = dri2_display_create_window_surface; + dri2dpy->base.create_pixmap_surface = dri2_display_create_pixmap_surface; + dri2dpy->base.create_pbuffer_surface = dri2_display_create_pbuffer_surface; + + return &dri2dpy->base; +} |