diff options
Diffstat (limited to 'src/gallium/state_trackers/egl/common/egl_g3d_st.c')
| -rw-r--r-- | src/gallium/state_trackers/egl/common/egl_g3d_st.c | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/egl/common/egl_g3d_st.c b/src/gallium/state_trackers/egl/common/egl_g3d_st.c new file mode 100644 index 0000000000..36094096d3 --- /dev/null +++ b/src/gallium/state_trackers/egl/common/egl_g3d_st.c @@ -0,0 +1,227 @@ +/* + * Mesa 3-D graphics library + * Version: 7.9 + * + * Copyright (C) 2010 LunarG Inc. + * + * 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. + * + * Authors: + * Chia-I Wu <olv@lunarg.com> + */ + +#include "util/u_memory.h" +#include "util/u_inlines.h" +#include "util/u_dl.h" +#include "eglimage.h" +#include "eglmutex.h" + +#include "egl_g3d.h" +#include "egl_g3d_st.h" + +struct egl_g3d_st_manager { + struct st_manager base; + _EGLDisplay *display; +}; + +static INLINE struct egl_g3d_st_manager * +egl_g3d_st_manager(struct st_manager *smapi) +{ + return (struct egl_g3d_st_manager *) smapi; +} + +struct st_api * +egl_g3d_create_st_api(enum st_api_type api) +{ + const char *stmod_name; + struct util_dl_library *lib; + const struct st_module *mod; + + switch (api) { + case ST_API_OPENGL: + stmod_name = ST_MODULE_OPENGL_SYMBOL; + break; + case ST_API_OPENGL_ES1: + stmod_name = ST_MODULE_OPENGL_ES1_SYMBOL; + break; + case ST_API_OPENGL_ES2: + stmod_name = ST_MODULE_OPENGL_ES2_SYMBOL; + break; + case ST_API_OPENVG: + stmod_name = ST_MODULE_OPENVG_SYMBOL; + break; + default: + stmod_name = NULL; + break; + } + if (!stmod_name) + return NULL; + + mod = NULL; + lib = util_dl_open(NULL); + if (lib) { + mod = (const struct st_module *) + util_dl_get_proc_address(lib, stmod_name); + util_dl_close(lib); + } + if (!mod || mod->api != api) + return NULL; + + return mod->create_api(); +} + +struct st_manager * +egl_g3d_create_st_manager(_EGLDisplay *dpy) +{ + struct egl_g3d_display *gdpy = egl_g3d_display(dpy); + struct egl_g3d_st_manager *gsmapi; + + gsmapi = CALLOC_STRUCT(egl_g3d_st_manager); + if (gsmapi) { + gsmapi->display = dpy; + + gsmapi->base.screen = gdpy->native->screen; + } + + return &gsmapi->base;; +} + +void +egl_g3d_destroy_st_manager(struct st_manager *smapi) +{ + struct egl_g3d_st_manager *gsmapi = egl_g3d_st_manager(smapi); + free(gsmapi); +} + +static boolean +egl_g3d_st_framebuffer_flush_front(struct st_framebuffer_iface *stfbi, + enum st_attachment_type statt) +{ + _EGLSurface *surf = (_EGLSurface *) stfbi->st_manager_private; + struct egl_g3d_surface *gsurf = egl_g3d_surface(surf); + + return gsurf->native->flush_frontbuffer(gsurf->native); +} + +static boolean +egl_g3d_st_framebuffer_validate(struct st_framebuffer_iface *stfbi, + const enum st_attachment_type *statts, + unsigned count, + struct pipe_texture **out) +{ + _EGLSurface *surf = (_EGLSurface *) stfbi->st_manager_private; + struct egl_g3d_surface *gsurf = egl_g3d_surface(surf); + struct pipe_texture *textures[NUM_NATIVE_ATTACHMENTS]; + uint attachment_mask = 0; + unsigned i; + + for (i = 0; i < count; i++) { + int natt; + + switch (statts[i]) { + case ST_ATTACHMENT_FRONT_LEFT: + natt = NATIVE_ATTACHMENT_FRONT_LEFT; + break; + case ST_ATTACHMENT_BACK_LEFT: + natt = NATIVE_ATTACHMENT_BACK_LEFT; + break; + case ST_ATTACHMENT_FRONT_RIGHT: + natt = NATIVE_ATTACHMENT_FRONT_RIGHT; + break; + case ST_ATTACHMENT_BACK_RIGHT: + natt = NATIVE_ATTACHMENT_BACK_RIGHT; + default: + natt = -1; + break; + } + + if (natt >= 0) + attachment_mask |= 1 << natt; + } + + if (!gsurf->native->validate(gsurf->native, attachment_mask, + &gsurf->sequence_number, textures, &gsurf->base.Width, + &gsurf->base.Height)) + return FALSE; + + for (i = 0; i < count; i++) { + struct pipe_texture *tex; + int natt; + + switch (statts[i]) { + case ST_ATTACHMENT_FRONT_LEFT: + natt = NATIVE_ATTACHMENT_FRONT_LEFT; + break; + case ST_ATTACHMENT_BACK_LEFT: + natt = NATIVE_ATTACHMENT_BACK_LEFT; + break; + case ST_ATTACHMENT_FRONT_RIGHT: + natt = NATIVE_ATTACHMENT_FRONT_RIGHT; + break; + case ST_ATTACHMENT_BACK_RIGHT: + natt = NATIVE_ATTACHMENT_BACK_RIGHT; + break; + default: + natt = -1; + break; + } + + if (natt >= 0) { + tex = textures[natt]; + + if (statts[i] == stfbi->visual->render_buffer) + pipe_texture_reference(&gsurf->render_texture, tex); + + if (attachment_mask & (1 << natt)) { + /* transfer the ownership to the caller */ + out[i] = tex; + attachment_mask &= ~(1 << natt); + } + else { + /* the attachment is listed more than once */ + pipe_texture_reference(&out[i], tex); + } + } + } + + return TRUE; +} + +struct st_framebuffer_iface * +egl_g3d_create_st_framebuffer(_EGLSurface *surf) +{ + struct egl_g3d_surface *gsurf = egl_g3d_surface(surf); + struct st_framebuffer_iface *stfbi; + + stfbi = CALLOC_STRUCT(st_framebuffer_iface); + if (!stfbi) + return NULL; + + stfbi->visual = &gsurf->stvis; + stfbi->flush_front = egl_g3d_st_framebuffer_flush_front; + stfbi->validate = egl_g3d_st_framebuffer_validate; + stfbi->st_manager_private = (void *) &gsurf->base; + + return stfbi; +} + +void +egl_g3d_destroy_st_framebuffer(struct st_framebuffer_iface *stfbi) +{ + free(stfbi); +} |