/* * Context and render target management in wined3d * * Copyright 2007-2008 Stefan Dösinger for CodeWeavers * Copyright 2009-2011 Henri Verbeet for CodeWeavers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ #include "config.h" #include #ifdef HAVE_FLOAT_H # include #endif #include "wined3d_private.h" WINE_DEFAULT_DEBUG_CHANNEL(d3d); static DWORD wined3d_context_tls_idx; /* FBO helper functions */ /* GL locking is done by the caller */ void context_bind_fbo(struct wined3d_context *context, GLenum target, GLuint *fbo) { const struct wined3d_gl_info *gl_info = context->gl_info; GLuint f; if (!fbo) { f = 0; } else { if (!*fbo) { gl_info->fbo_ops.glGenFramebuffers(1, fbo); checkGLcall("glGenFramebuffers()"); TRACE("Created FBO %u.\n", *fbo); } f = *fbo; } switch (target) { case GL_READ_FRAMEBUFFER: if (context->fbo_read_binding == f) return; context->fbo_read_binding = f; break; case GL_DRAW_FRAMEBUFFER: if (context->fbo_draw_binding == f) return; context->fbo_draw_binding = f; break; case GL_FRAMEBUFFER: if (context->fbo_read_binding == f && context->fbo_draw_binding == f) return; context->fbo_read_binding = f; context->fbo_draw_binding = f; break; default: FIXME("Unhandled target %#x.\n", target); break; } gl_info->fbo_ops.glBindFramebuffer(target, f); checkGLcall("glBindFramebuffer()"); } /* GL locking is done by the caller */ static void context_clean_fbo_attachments(const struct wined3d_gl_info *gl_info, GLenum target) { unsigned int i; for (i = 0; i < gl_info->limits.buffers; ++i) { gl_info->fbo_ops.glFramebufferTexture2D(target, GL_COLOR_ATTACHMENT0 + i, GL_TEXTURE_2D, 0, 0); checkGLcall("glFramebufferTexture2D()"); } gl_info->fbo_ops.glFramebufferTexture2D(target, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, 0, 0); checkGLcall("glFramebufferTexture2D()"); gl_info->fbo_ops.glFramebufferTexture2D(target, GL_STENCIL_ATTACHMENT, GL_TEXTURE_2D, 0, 0); checkGLcall("glFramebufferTexture2D()"); } /* GL locking is done by the caller */ static void context_destroy_fbo(struct wined3d_context *context, GLuint *fbo) { const struct wined3d_gl_info *gl_info = context->gl_info; context_bind_fbo(context, GL_FRAMEBUFFER, fbo); context_clean_fbo_attachments(gl_info, GL_FRAMEBUFFER); context_bind_fbo(context, GL_FRAMEBUFFER, NULL); gl_info->fbo_ops.glDeleteFramebuffers(1, fbo); checkGLcall("glDeleteFramebuffers()"); } /* GL locking is done by the caller */ void context_attach_depth_stencil_fbo(struct wined3d_context *context, GLenum fbo_target, struct wined3d_surface *depth_stencil, BOOL use_render_buffer) { const struct wined3d_gl_info *gl_info = context->gl_info; TRACE("Attach depth stencil %p\n", depth_stencil); if (depth_stencil) { DWORD format_flags = depth_stencil->resource.format->flags; if (use_render_buffer && depth_stencil->current_renderbuffer) { if (format_flags & WINED3DFMT_FLAG_DEPTH) { gl_info->fbo_ops.glFramebufferRenderbuffer(fbo_target, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, depth_stencil->current_renderbuffer->id); checkGLcall("glFramebufferRenderbuffer()"); } if (format_flags & WINED3DFMT_FLAG_STENCIL) { gl_info->fbo_ops.glFramebufferRenderbuffer(fbo_target, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, depth_stencil->current_renderbuffer->id); checkGLcall("glFramebufferRenderbuffer()"); } } else { surface_prepare_texture(depth_stencil, gl_info, FALSE); if (format_flags & WINED3DFMT_FLAG_DEPTH) { gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_DEPTH_ATTACHMENT, depth_stencil->texture_target, depth_stencil->texture_name, depth_stencil->texture_level); checkGLcall("glFramebufferTexture2D()"); } if (format_flags & WINED3DFMT_FLAG_STENCIL) { gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_STENCIL_ATTACHMENT, depth_stencil->texture_target, depth_stencil->texture_name, depth_stencil->texture_level); checkGLcall("glFramebufferTexture2D()"); } } if (!(format_flags & WINED3DFMT_FLAG_DEPTH)) { gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, 0, 0); checkGLcall("glFramebufferTexture2D()"); } if (!(format_flags & WINED3DFMT_FLAG_STENCIL)) { gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_STENCIL_ATTACHMENT, GL_TEXTURE_2D, 0, 0); checkGLcall("glFramebufferTexture2D()"); } } else { gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, 0, 0); checkGLcall("glFramebufferTexture2D()"); gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_STENCIL_ATTACHMENT, GL_TEXTURE_2D, 0, 0); checkGLcall("glFramebufferTexture2D()"); } } /* GL locking is done by the caller */ static void context_attach_surface_fbo(const struct wined3d_context *context, GLenum fbo_target, DWORD idx, struct wined3d_surface *surface, DWORD location) { const struct wined3d_gl_info *gl_info = context->gl_info; TRACE("Attach surface %p to %u\n", surface, idx); if (surface && surface->resource.format->id != WINED3DFMT_NULL) { BOOL srgb; switch (location) { case SFLAG_INTEXTURE: case SFLAG_INSRGBTEX: srgb = location == SFLAG_INSRGBTEX; surface_prepare_texture(surface, gl_info, srgb); gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_COLOR_ATTACHMENT0 + idx, surface->texture_target, surface_get_texture_name(surface, gl_info, srgb), surface->texture_level); break; default: ERR("Unsupported location %s (%#x).\n", debug_surflocation(location), location); break; } checkGLcall("glFramebufferTexture2D()"); } else { gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, GL_COLOR_ATTACHMENT0 + idx, GL_TEXTURE_2D, 0, 0); checkGLcall("glFramebufferTexture2D()"); } } /* GL locking is done by the caller */ void context_check_fbo_status(struct wined3d_context *context, GLenum target) { const struct wined3d_gl_info *gl_info = context->gl_info; GLenum status; if (!FIXME_ON(d3d)) return; status = gl_info->fbo_ops.glCheckFramebufferStatus(target); if (status == GL_FRAMEBUFFER_COMPLETE) { TRACE("FBO complete\n"); } else { struct wined3d_surface *attachment; unsigned int i; FIXME("FBO status %s (%#x)\n", debug_fbostatus(status), status); if (!context->current_fbo) { ERR("FBO 0 is incomplete, driver bug?\n"); return; } FIXME("\tLocation %s (%#x).\n", debug_surflocation(context->current_fbo->location), context->current_fbo->location); /* Dump the FBO attachments */ for (i = 0; i < gl_info->limits.buffers; ++i) { attachment = context->current_fbo->render_targets[i]; if (attachment) { FIXME("\tColor attachment %d: (%p) %s %ux%u\n", i, attachment, debug_d3dformat(attachment->resource.format->id), attachment->pow2Width, attachment->pow2Height); } } attachment = context->current_fbo->depth_stencil; if (attachment) { FIXME("\tDepth attachment: (%p) %s %ux%u\n", attachment, debug_d3dformat(attachment->resource.format->id), attachment->pow2Width, attachment->pow2Height); } } } static struct fbo_entry *context_create_fbo_entry(struct wined3d_context *context, struct wined3d_surface **render_targets, struct wined3d_surface *depth_stencil, DWORD location) { const struct wined3d_gl_info *gl_info = context->gl_info; struct fbo_entry *entry; entry = HeapAlloc(GetProcessHeap(), 0, sizeof(*entry)); entry->render_targets = HeapAlloc(GetProcessHeap(), 0, gl_info->limits.buffers * sizeof(*entry->render_targets)); memcpy(entry->render_targets, render_targets, gl_info->limits.buffers * sizeof(*entry->render_targets)); entry->depth_stencil = depth_stencil; entry->location = location; entry->attached = FALSE; entry->id = 0; return entry; } /* GL locking is done by the caller */ static void context_reuse_fbo_entry(struct wined3d_context *context, GLenum target, struct wined3d_surface **render_targets, struct wined3d_surface *depth_stencil, DWORD location, struct fbo_entry *entry) { const struct wined3d_gl_info *gl_info = context->gl_info; context_bind_fbo(context, target, &entry->id); context_clean_fbo_attachments(gl_info, target); memcpy(entry->render_targets, render_targets, gl_info->limits.buffers * sizeof(*entry->render_targets)); entry->depth_stencil = depth_stencil; entry->location = location; entry->attached = FALSE; } /* GL locking is done by the caller */ static void context_destroy_fbo_entry(struct wined3d_context *context, struct fbo_entry *entry) { if (entry->id) { TRACE("Destroy FBO %d\n", entry->id); context_destroy_fbo(context, &entry->id); } --context->fbo_entry_count; list_remove(&entry->entry); HeapFree(GetProcessHeap(), 0, entry->render_targets); HeapFree(GetProcessHeap(), 0, entry); } /* GL locking is done by the caller */ static struct fbo_entry *context_find_fbo_entry(struct wined3d_context *context, GLenum target, struct wined3d_surface **render_targets, struct wined3d_surface *depth_stencil, DWORD location) { const struct wined3d_gl_info *gl_info = context->gl_info; struct fbo_entry *entry; if (depth_stencil && render_targets && render_targets[0]) { if (depth_stencil->resource.width < render_targets[0]->resource.width || depth_stencil->resource.height < render_targets[0]->resource.height) { WARN("Depth stencil is smaller than the primary color buffer, disabling\n"); depth_stencil = NULL; } } LIST_FOR_EACH_ENTRY(entry, &context->fbo_list, struct fbo_entry, entry) { if (!memcmp(entry->render_targets, render_targets, gl_info->limits.buffers * sizeof(*entry->render_targets)) && entry->depth_stencil == depth_stencil && entry->location == location) { list_remove(&entry->entry); list_add_head(&context->fbo_list, &entry->entry); return entry; } } if (context->fbo_entry_count < WINED3D_MAX_FBO_ENTRIES) { entry = context_create_fbo_entry(context, render_targets, depth_stencil, location); list_add_head(&context->fbo_list, &entry->entry); ++context->fbo_entry_count; } else { entry = LIST_ENTRY(list_tail(&context->fbo_list), struct fbo_entry, entry); context_reuse_fbo_entry(context, target, render_targets, depth_stencil, location, entry); list_remove(&entry->entry); list_add_head(&context->fbo_list, &entry->entry); } return entry; } /* GL locking is done by the caller */ static void context_apply_fbo_entry(struct wined3d_context *context, GLenum target, struct fbo_entry *entry) { const struct wined3d_gl_info *gl_info = context->gl_info; unsigned int i; context_bind_fbo(context, target, &entry->id); if (entry->attached) return; /* Apply render targets */ for (i = 0; i < gl_info->limits.buffers; ++i) { context_attach_surface_fbo(context, target, i, entry->render_targets[i], entry->location); } /* Apply depth targets */ if (entry->depth_stencil) surface_set_compatible_renderbuffer(entry->depth_stencil, entry->render_targets[0]); context_attach_depth_stencil_fbo(context, target, entry->depth_stencil, TRUE); entry->attached = TRUE; } /* GL locking is done by the caller */ static void context_apply_fbo_state(struct wined3d_context *context, GLenum target, struct wined3d_surface **render_targets, struct wined3d_surface *depth_stencil, DWORD location) { struct fbo_entry *entry, *entry2; LIST_FOR_EACH_ENTRY_SAFE(entry, entry2, &context->fbo_destroy_list, struct fbo_entry, entry) { context_destroy_fbo_entry(context, entry); } if (context->rebind_fbo) { context_bind_fbo(context, GL_FRAMEBUFFER, NULL); context->rebind_fbo = FALSE; } if (render_targets) { context->current_fbo = context_find_fbo_entry(context, target, render_targets, depth_stencil, location); context_apply_fbo_entry(context, target, context->current_fbo); } else { context->current_fbo = NULL; context_bind_fbo(context, target, NULL); } } /* GL locking is done by the caller */ void context_apply_fbo_state_blit(struct wined3d_context *context, GLenum target, struct wined3d_surface *render_target, struct wined3d_surface *depth_stencil, DWORD location) { if (location != SFLAG_INDRAWABLE || surface_is_offscreen(render_target)) { UINT clear_size = (context->gl_info->limits.buffers - 1) * sizeof(*context->blit_targets); context->blit_targets[0] = render_target; if (clear_size) memset(&context->blit_targets[1], 0, clear_size); context_apply_fbo_state(context, target, context->blit_targets, depth_stencil, location); } else { context_apply_fbo_state(context, target, NULL, NULL, location); } } /* Context activation is done by the caller. */ void context_alloc_occlusion_query(struct wined3d_context *context, struct wined3d_occlusion_query *query) { const struct wined3d_gl_info *gl_info = context->gl_info; if (context->free_occlusion_query_count) { query->id = context->free_occlusion_queries[--context->free_occlusion_query_count]; } else { if (gl_info->supported[ARB_OCCLUSION_QUERY]) { ENTER_GL(); GL_EXTCALL(glGenQueriesARB(1, &query->id)); checkGLcall("glGenQueriesARB"); LEAVE_GL(); TRACE("Allocated occlusion query %u in context %p.\n", query->id, context); } else { WARN("Occlusion queries not supported, not allocating query id.\n"); query->id = 0; } } query->context = context; list_add_head(&context->occlusion_queries, &query->entry); } void context_free_occlusion_query(struct wined3d_occlusion_query *query) { struct wined3d_context *context = query->context; list_remove(&query->entry); query->context = NULL; if (context->free_occlusion_query_count >= context->free_occlusion_query_size - 1) { UINT new_size = context->free_occlusion_query_size << 1; GLuint *new_data = HeapReAlloc(GetProcessHeap(), 0, context->free_occlusion_queries, new_size * sizeof(*context->free_occlusion_queries)); if (!new_data) { ERR("Failed to grow free list, leaking query %u in context %p.\n", query->id, context); return; } context->free_occlusion_query_size = new_size; context->free_occlusion_queries = new_data; } context->free_occlusion_queries[context->free_occlusion_query_count++] = query->id; } /* Context activation is done by the caller. */ void context_alloc_event_query(struct wined3d_context *context, struct wined3d_event_query *query) { const struct wined3d_gl_info *gl_info = context->gl_info; if (context->free_event_query_count) { query->object = context->free_event_queries[--context->free_event_query_count]; } else { if (gl_info->supported[ARB_SYNC]) { /* Using ARB_sync, not much to do here. */ query->object.sync = NULL; TRACE("Allocated event query %p in context %p.\n", query->object.sync, context); } else if (gl_info->supported[APPLE_FENCE]) { ENTER_GL(); GL_EXTCALL(glGenFencesAPPLE(1, &query->object.id)); checkGLcall("glGenFencesAPPLE"); LEAVE_GL(); TRACE("Allocated event query %u in context %p.\n", query->object.id, context); } else if(gl_info->supported[NV_FENCE]) { ENTER_GL(); GL_EXTCALL(glGenFencesNV(1, &query->object.id)); checkGLcall("glGenFencesNV"); LEAVE_GL(); TRACE("Allocated event query %u in context %p.\n", query->object.id, context); } else { WARN("Event queries not supported, not allocating query id.\n"); query->object.id = 0; } } query->context = context; list_add_head(&context->event_queries, &query->entry); } void context_free_event_query(struct wined3d_event_query *query) { struct wined3d_context *context = query->context; list_remove(&query->entry); query->context = NULL; if (context->free_event_query_count >= context->free_event_query_size - 1) { UINT new_size = context->free_event_query_size << 1; union wined3d_gl_query_object *new_data = HeapReAlloc(GetProcessHeap(), 0, context->free_event_queries, new_size * sizeof(*context->free_event_queries)); if (!new_data) { ERR("Failed to grow free list, leaking query %u in context %p.\n", query->object.id, context); return; } context->free_event_query_size = new_size; context->free_event_queries = new_data; } context->free_event_queries[context->free_event_query_count++] = query->object; } typedef void (context_fbo_entry_func_t)(struct wined3d_context *context, struct fbo_entry *entry); static void context_enum_surface_fbo_entries(struct wined3d_device *device, struct wined3d_surface *surface, context_fbo_entry_func_t *callback) { UINT i; for (i = 0; i < device->context_count; ++i) { struct wined3d_context *context = device->contexts[i]; const struct wined3d_gl_info *gl_info = context->gl_info; struct fbo_entry *entry, *entry2; if (context->current_rt == surface) context->current_rt = NULL; LIST_FOR_EACH_ENTRY_SAFE(entry, entry2, &context->fbo_list, struct fbo_entry, entry) { UINT j; if (entry->depth_stencil == surface) { callback(context, entry); continue; } for (j = 0; j < gl_info->limits.buffers; ++j) { if (entry->render_targets[j] == surface) { callback(context, entry); break; } } } } } static void context_queue_fbo_entry_destruction(struct wined3d_context *context, struct fbo_entry *entry) { list_remove(&entry->entry); list_add_head(&context->fbo_destroy_list, &entry->entry); } void context_resource_released(struct wined3d_device *device, struct wined3d_resource *resource, WINED3DRESOURCETYPE type) { if (!device->d3d_initialized) return; switch (type) { case WINED3DRTYPE_SURFACE: context_enum_surface_fbo_entries(device, surface_from_resource(resource), context_queue_fbo_entry_destruction); break; default: break; } } static void context_detach_fbo_entry(struct wined3d_context *context, struct fbo_entry *entry) { entry->attached = FALSE; } void context_resource_unloaded(struct wined3d_device *device, struct wined3d_resource *resource, WINED3DRESOURCETYPE type) { switch (type) { case WINED3DRTYPE_SURFACE: context_enum_surface_fbo_entries(device, surface_from_resource(resource), context_detach_fbo_entry); break; default: break; } } void context_surface_update(struct wined3d_context *context, struct wined3d_surface *surface) { const struct wined3d_gl_info *gl_info = context->gl_info; struct fbo_entry *entry = context->current_fbo; unsigned int i; if (!entry || context->rebind_fbo) return; for (i = 0; i < gl_info->limits.buffers; ++i) { if (surface == entry->render_targets[i]) { TRACE("Updated surface %p is bound as color attachment %u to the current FBO.\n", surface, i); context->rebind_fbo = TRUE; return; } } if (surface == entry->depth_stencil) { TRACE("Updated surface %p is bound as depth attachment to the current FBO.\n", surface); context->rebind_fbo = TRUE; } } static BOOL context_set_pixel_format(const struct wined3d_gl_info *gl_info, HDC dc, int format) { int current = GetPixelFormat(dc); if (current == format) return TRUE; if (!current) { if (!SetPixelFormat(dc, format, NULL)) { ERR("Failed to set pixel format %d on device context %p, last error %#x.\n", format, dc, GetLastError()); return FALSE; } return TRUE; } /* By default WGL doesn't allow pixel format adjustments but we need it * here. For this reason there's a Wine specific wglSetPixelFormat() * which allows us to set the pixel format multiple times. Only use it * when really needed. */ if (gl_info->supported[WGL_WINE_PIXEL_FORMAT_PASSTHROUGH]) { if (!GL_EXTCALL(wglSetPixelFormatWINE(dc, format, NULL))) { ERR("wglSetPixelFormatWINE failed to set pixel format %d on device context %p.\n", format, dc); return FALSE; } return TRUE; } /* OpenGL doesn't allow pixel format adjustments. Print an error and * continue using the old format. There's a big chance that the old * format works although with a performance hit and perhaps rendering * errors. */ ERR("Unable to set pixel format %d on device context %p. Already using format %d.\n", format, dc, current); return TRUE; } static BOOL context_set_gl_context(struct wined3d_context *ctx) { struct wined3d_swapchain *swapchain = ctx->swapchain; if (!pwglMakeCurrent(ctx->hdc, ctx->glCtx)) { WARN("Failed to make GL context %p current on device context %p, last error %#x.\n", ctx->glCtx, ctx->hdc, GetLastError()); ctx->valid = 0; WARN("Trying fallback to the backup window.\n"); if (!swapchain->backup_dc) { TRACE("Creating the backup window for swapchain %p.\n", swapchain); swapchain->backup_wnd = CreateWindowA(WINED3D_OPENGL_WINDOW_CLASS_NAME, "WineD3D fake window", WS_OVERLAPPEDWINDOW, 10, 10, 10, 10, NULL, NULL, NULL, NULL); if (!swapchain->backup_wnd) { ERR("Failed to create a window.\n"); goto fail; } swapchain->backup_dc = GetDC(swapchain->backup_wnd); if (!swapchain->backup_dc) { ERR("Failed to get a DC.\n"); goto fail; } if (!context_set_pixel_format(ctx->gl_info, swapchain->backup_dc, ctx->pixel_format)) { ERR("Failed to set pixel format %d on device context %p.\n", ctx->pixel_format, swapchain->backup_dc); goto fail; } } if (!pwglMakeCurrent(swapchain->backup_dc, ctx->glCtx)) { ERR("Fallback to backup window (dc %p) failed too, last error %#x.\n", swapchain->backup_dc, GetLastError()); context_set_current(NULL); return FALSE; } } return TRUE; fail: if (swapchain->backup_dc) { ReleaseDC(swapchain->backup_wnd, swapchain->backup_dc); swapchain->backup_dc = NULL; } if (swapchain->backup_wnd) { DestroyWindow(swapchain->backup_wnd); swapchain->backup_wnd = NULL; } context_set_current(NULL); return FALSE; } static void context_restore_gl_context(HDC dc, HGLRC gl_ctx) { if (!pwglMakeCurrent(dc, gl_ctx)) { ERR("Failed to restore GL context %p on device context %p, last error %#x.\n", gl_ctx, dc, GetLastError()); context_set_current(NULL); } } static void context_update_window(struct wined3d_context *context) { if (context->win_handle == context->swapchain->win_handle) return; TRACE("Updating context %p window from %p to %p.\n", context, context->win_handle, context->swapchain->win_handle); if (context->valid) { /* You'd figure ReleaseDC() would fail if the DC doesn't match the * window. However, that's not what actually happens, and there are * user32 tests that confirm ReleaseDC() with the wrong window is * supposed to succeed. So explicitly check that the DC belongs to * the window, since we want to avoid releasing a DC that belongs to * some other window if the original window was already destroyed. */ if (WindowFromDC(context->hdc) != context->win_handle) { WARN("DC %p does not belong to window %p.\n", context->hdc, context->win_handle); } else if (!ReleaseDC(context->win_handle, context->hdc)) { ERR("Failed to release device context %p, last error %#x.\n", context->hdc, GetLastError()); } } else context->valid = 1; context->win_handle = context->swapchain->win_handle; if (!(context->hdc = GetDC(context->win_handle))) { ERR("Failed to get a device context for window %p.\n", context->win_handle); goto err; } if (!context_set_pixel_format(context->gl_info, context->hdc, context->pixel_format)) { ERR("Failed to set pixel format %d on device context %p.\n", context->pixel_format, context->hdc); goto err; } context_set_gl_context(context); return; err: context->valid = 0; } /* Do not call while under the GL lock. */ static void context_destroy_gl_resources(struct wined3d_context *context) { const struct wined3d_gl_info *gl_info = context->gl_info; struct wined3d_occlusion_query *occlusion_query; struct wined3d_event_query *event_query; struct fbo_entry *entry, *entry2; HGLRC restore_ctx; HDC restore_dc; unsigned int i; restore_ctx = pwglGetCurrentContext(); restore_dc = pwglGetCurrentDC(); context_update_window(context); if (context->valid && restore_ctx != context->glCtx) context_set_gl_context(context); else restore_ctx = NULL; ENTER_GL(); LIST_FOR_EACH_ENTRY(occlusion_query, &context->occlusion_queries, struct wined3d_occlusion_query, entry) { if (context->valid && gl_info->supported[ARB_OCCLUSION_QUERY]) GL_EXTCALL(glDeleteQueriesARB(1, &occlusion_query->id)); occlusion_query->context = NULL; } LIST_FOR_EACH_ENTRY(event_query, &context->event_queries, struct wined3d_event_query, entry) { if (context->valid) { if (gl_info->supported[ARB_SYNC]) { if (event_query->object.sync) GL_EXTCALL(glDeleteSync(event_query->object.sync)); } else if (gl_info->supported[APPLE_FENCE]) GL_EXTCALL(glDeleteFencesAPPLE(1, &event_query->object.id)); else if (gl_info->supported[NV_FENCE]) GL_EXTCALL(glDeleteFencesNV(1, &event_query->object.id)); } event_query->context = NULL; } LIST_FOR_EACH_ENTRY_SAFE(entry, entry2, &context->fbo_destroy_list, struct fbo_entry, entry) { if (!context->valid) entry->id = 0; context_destroy_fbo_entry(context, entry); } LIST_FOR_EACH_ENTRY_SAFE(entry, entry2, &context->fbo_list, struct fbo_entry, entry) { if (!context->valid) entry->id = 0; context_destroy_fbo_entry(context, entry); } if (context->valid) { if (context->dst_fbo) { TRACE("Destroy dst FBO %d\n", context->dst_fbo); context_destroy_fbo(context, &context->dst_fbo); } if (context->dummy_arbfp_prog) { GL_EXTCALL(glDeleteProgramsARB(1, &context->dummy_arbfp_prog)); } if (gl_info->supported[ARB_OCCLUSION_QUERY]) GL_EXTCALL(glDeleteQueriesARB(context->free_occlusion_query_count, context->free_occlusion_queries)); if (gl_info->supported[ARB_SYNC]) { for (i = 0; i < context->free_event_query_count; ++i) { GL_EXTCALL(glDeleteSync(context->free_event_queries[i].sync)); } } else if (gl_info->supported[APPLE_FENCE]) { for (i = 0; i < context->free_event_query_count; ++i) { GL_EXTCALL(glDeleteFencesAPPLE(1, &context->free_event_queries[i].id)); } } else if (gl_info->supported[NV_FENCE]) { for (i = 0; i < context->free_event_query_count; ++i) { GL_EXTCALL(glDeleteFencesNV(1, &context->free_event_queries[i].id)); } } checkGLcall("context cleanup"); } LEAVE_GL(); HeapFree(GetProcessHeap(), 0, context->free_occlusion_queries); HeapFree(GetProcessHeap(), 0, context->free_event_queries); if (restore_ctx) { context_restore_gl_context(restore_dc, restore_ctx); } else if (pwglGetCurrentContext() && !pwglMakeCurrent(NULL, NULL)) { ERR("Failed to disable GL context.\n"); } ReleaseDC(context->win_handle, context->hdc); if (!pwglDeleteContext(context->glCtx)) { DWORD err = GetLastError(); ERR("wglDeleteContext(%p) failed, last error %#x.\n", context->glCtx, err); } } DWORD context_get_tls_idx(void) { return wined3d_context_tls_idx; } void context_set_tls_idx(DWORD idx) { wined3d_context_tls_idx = idx; } struct wined3d_context *context_get_current(void) { return TlsGetValue(wined3d_context_tls_idx); } /* Do not call while under the GL lock. */ BOOL context_set_current(struct wined3d_context *ctx) { struct wined3d_context *old = context_get_current(); if (old == ctx) { TRACE("Already using D3D context %p.\n", ctx); return TRUE; } if (old) { if (old->destroyed) { TRACE("Switching away from destroyed context %p.\n", old); context_destroy_gl_resources(old); HeapFree(GetProcessHeap(), 0, old); } else { old->current = 0; } } if (ctx) { if (!ctx->valid) { ERR("Trying to make invalid context %p current\n", ctx); return FALSE; } TRACE("Switching to D3D context %p, GL context %p, device context %p.\n", ctx, ctx->glCtx, ctx->hdc); if (!context_set_gl_context(ctx)) return FALSE; ctx->current = 1; } else if(pwglGetCurrentContext()) { TRACE("Clearing current D3D context.\n"); if (!pwglMakeCurrent(NULL, NULL)) { DWORD err = GetLastError(); ERR("Failed to clear current GL context, last error %#x.\n", err); TlsSetValue(wined3d_context_tls_idx, NULL); return FALSE; } } return TlsSetValue(wined3d_context_tls_idx, ctx); } void context_release(struct wined3d_context *context) { TRACE("Releasing context %p, level %u.\n", context, context->level); if (WARN_ON(d3d)) { if (!context->level) WARN("Context %p is not active.\n", context); else if (context != context_get_current()) WARN("Context %p is not the current context.\n", context); } if (!--context->level && context->restore_ctx) { TRACE("Restoring GL context %p on device context %p.\n", context->restore_ctx, context->restore_dc); context_restore_gl_context(context->restore_dc, context->restore_ctx); context->restore_ctx = NULL; context->restore_dc = NULL; } } static void context_enter(struct wined3d_context *context) { TRACE("Entering context %p, level %u.\n", context, context->level + 1); if (!context->level++) { const struct wined3d_context *current_context = context_get_current(); HGLRC current_gl = pwglGetCurrentContext(); if (current_gl && (!current_context || current_context->glCtx != current_gl)) { TRACE("Another GL context (%p on device context %p) is already current.\n", current_gl, pwglGetCurrentDC()); context->restore_ctx = current_gl; context->restore_dc = pwglGetCurrentDC(); } } } static void context_invalidate_state(struct wined3d_context *context, DWORD state, const struct StateEntry *state_table) { DWORD rep = state_table[state].representative; DWORD idx; BYTE shift; if (isStateDirty(context, rep)) return; context->dirtyArray[context->numDirtyEntries++] = rep; idx = rep / (sizeof(*context->isStateDirty) * CHAR_BIT); shift = rep & ((sizeof(*context->isStateDirty) * CHAR_BIT) - 1); context->isStateDirty[idx] |= (1 << shift); } /* This function takes care of WineD3D pixel format selection. */ static int WineD3D_ChoosePixelFormat(struct wined3d_device *device, HDC hdc, const struct wined3d_format *color_format, const struct wined3d_format *ds_format, BOOL auxBuffers, int numSamples, BOOL findCompatible) { int iPixelFormat=0; unsigned int matchtry; BYTE redBits, greenBits, blueBits, alphaBits, colorBits; BYTE depthBits=0, stencilBits=0; static const struct { BOOL require_aux; BOOL exact_alpha; BOOL exact_color; } matches[] = { /* First, try without alpha match buffers. MacOS supports aux buffers only * on A8R8G8B8, and we prefer better offscreen rendering over an alpha match. * Then try without aux buffers - this is the most common cause for not * finding a pixel format. Also some drivers(the open source ones) * only offer 32 bit ARB pixel formats. First try without an exact alpha * match, then try without an exact alpha and color match. */ { TRUE, TRUE, TRUE }, { TRUE, FALSE, TRUE }, { FALSE, TRUE, TRUE }, { FALSE, FALSE, TRUE }, { TRUE, FALSE, FALSE }, { FALSE, FALSE, FALSE }, }; int i = 0; int nCfgs = device->adapter->nCfgs; TRACE("ColorFormat=%s, DepthStencilFormat=%s, auxBuffers=%d, numSamples=%d, findCompatible=%d\n", debug_d3dformat(color_format->id), debug_d3dformat(ds_format->id), auxBuffers, numSamples, findCompatible); if (!getColorBits(color_format, &redBits, &greenBits, &blueBits, &alphaBits, &colorBits)) { ERR("Unable to get color bits for format %s (%#x)!\n", debug_d3dformat(color_format->id), color_format->id); return 0; } getDepthStencilBits(ds_format, &depthBits, &stencilBits); for (matchtry = 0; matchtry < (sizeof(matches) / sizeof(*matches)) && !iPixelFormat; ++matchtry) { for (i = 0; i < nCfgs; ++i) { const struct wined3d_pixel_format *cfg = &device->adapter->cfgs[i]; BOOL exactDepthMatch = TRUE; /* For now only accept RGBA formats. Perhaps some day we will * allow floating point formats for pbuffers. */ if(cfg->iPixelType != WGL_TYPE_RGBA_ARB) continue; /* In window mode we need a window drawable format and double buffering. */ if(!(cfg->windowDrawable && cfg->doubleBuffer)) continue; /* We like to have aux buffers in backbuffer mode */ if(auxBuffers && !cfg->auxBuffers && matches[matchtry].require_aux) continue; if(matches[matchtry].exact_color) { if(cfg->redSize != redBits) continue; if(cfg->greenSize != greenBits) continue; if(cfg->blueSize != blueBits) continue; } else { if(cfg->redSize < redBits) continue; if(cfg->greenSize < greenBits) continue; if(cfg->blueSize < blueBits) continue; } if(matches[matchtry].exact_alpha) { if(cfg->alphaSize != alphaBits) continue; } else { if(cfg->alphaSize < alphaBits) continue; } /* We try to locate a format which matches our requirements exactly. In case of * depth it is no problem to emulate 16-bit using e.g. 24-bit, so accept that. */ if(cfg->depthSize < depthBits) continue; else if(cfg->depthSize > depthBits) exactDepthMatch = FALSE; /* In all cases make sure the number of stencil bits matches our requirements * even when we don't need stencil because it could affect performance EXCEPT * on cards which don't offer depth formats without stencil like the i915 drivers * on Linux. */ if (stencilBits != cfg->stencilSize && !(device->adapter->brokenStencil && stencilBits <= cfg->stencilSize)) continue; /* Check multisampling support */ if(cfg->numSamples != numSamples) continue; /* When we have passed all the checks then we have found a format which matches our * requirements. Note that we only check for a limit number of capabilities right now, * so there can easily be a dozen of pixel formats which appear to be the 'same' but * can still differ in things like multisampling, stereo, SRGB and other flags. */ /* Exit the loop as we have found a format :) */ if(exactDepthMatch) { iPixelFormat = cfg->iPixelFormat; break; } else if(!iPixelFormat) { /* In the end we might end up with a format which doesn't exactly match our depth * requirements. Accept the first format we found because formats with higher iPixelFormat * values tend to have more extended capabilities (e.g. multisampling) which we don't need. */ iPixelFormat = cfg->iPixelFormat; } } } /* When findCompatible is set and no suitable format was found, let ChoosePixelFormat choose a pixel format in order not to crash. */ if(!iPixelFormat && !findCompatible) { ERR("Can't find a suitable iPixelFormat\n"); return FALSE; } else if(!iPixelFormat) { PIXELFORMATDESCRIPTOR pfd; TRACE("Falling back to ChoosePixelFormat as we weren't able to find an exactly matching pixel format\n"); /* PixelFormat selection */ ZeroMemory(&pfd, sizeof(pfd)); pfd.nSize = sizeof(pfd); pfd.nVersion = 1; pfd.dwFlags = PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER | PFD_DRAW_TO_WINDOW;/*PFD_GENERIC_ACCELERATED*/ pfd.iPixelType = PFD_TYPE_RGBA; pfd.cAlphaBits = alphaBits; pfd.cColorBits = colorBits; pfd.cDepthBits = depthBits; pfd.cStencilBits = stencilBits; pfd.iLayerType = PFD_MAIN_PLANE; iPixelFormat = ChoosePixelFormat(hdc, &pfd); if(!iPixelFormat) { /* If this happens something is very wrong as ChoosePixelFormat barely fails */ ERR("Can't find a suitable iPixelFormat\n"); return FALSE; } } TRACE("Found iPixelFormat=%d for ColorFormat=%s, DepthStencilFormat=%s\n", iPixelFormat, debug_d3dformat(color_format->id), debug_d3dformat(ds_format->id)); return iPixelFormat; } static inline DWORD generate_rt_mask(GLenum buffer) { /* Should take care of all the GL_FRONT/GL_BACK/GL_AUXi/GL_NONE... cases */ return buffer ? (1 << 31) | buffer : 0; } static inline DWORD generate_rt_mask_from_surface(const struct wined3d_surface *target) { return (1 << 31) | surface_get_gl_buffer(target); } /* Do not call while under the GL lock. */ struct wined3d_context *context_create(struct wined3d_swapchain *swapchain, struct wined3d_surface *target, const struct wined3d_format *ds_format) { struct wined3d_device *device = swapchain->device; const struct wined3d_gl_info *gl_info = &device->adapter->gl_info; const struct wined3d_format *color_format; struct wined3d_context *ret; PIXELFORMATDESCRIPTOR pfd; BOOL auxBuffers = FALSE; int numSamples = 0; int pixel_format; unsigned int s; int swap_interval; DWORD state; HGLRC ctx; HDC hdc; TRACE("swapchain %p, target %p, window %p.\n", swapchain, target, swapchain->win_handle); ret = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*ret)); if (!ret) { ERR("Failed to allocate context memory.\n"); return NULL; } if (!(hdc = GetDC(swapchain->win_handle))) { ERR("Failed to retrieve a device context.\n"); goto out; } color_format = target->resource.format; /* In case of ORM_BACKBUFFER, make sure to request an alpha component for * X4R4G4B4/X8R8G8B8 as we might need it for the backbuffer. */ if (wined3d_settings.offscreen_rendering_mode == ORM_BACKBUFFER) { auxBuffers = TRUE; if (color_format->id == WINED3DFMT_B4G4R4X4_UNORM) color_format = wined3d_get_format(gl_info, WINED3DFMT_B4G4R4A4_UNORM); else if (color_format->id == WINED3DFMT_B8G8R8X8_UNORM) color_format = wined3d_get_format(gl_info, WINED3DFMT_B8G8R8A8_UNORM); } /* DirectDraw supports 8bit paletted render targets and these are used by * old games like StarCraft and C&C. Most modern hardware doesn't support * 8bit natively so we perform some form of 8bit -> 32bit conversion. The * conversion (ab)uses the alpha component for storing the palette index. * For this reason we require a format with 8bit alpha, so request * A8R8G8B8. */ if (color_format->id == WINED3DFMT_P8_UINT) color_format = wined3d_get_format(gl_info, WINED3DFMT_B8G8R8A8_UNORM); /* D3D only allows multisampling when SwapEffect is set to WINED3DSWAPEFFECT_DISCARD. */ if (swapchain->presentParms.MultiSampleType && (swapchain->presentParms.SwapEffect == WINED3DSWAPEFFECT_DISCARD)) { if (!gl_info->supported[ARB_MULTISAMPLE]) WARN("The application is requesting multisampling without support.\n"); else { TRACE("Requesting multisample type %#x.\n", swapchain->presentParms.MultiSampleType); numSamples = swapchain->presentParms.MultiSampleType; } } /* Try to find a pixel format which matches our requirements. */ pixel_format = WineD3D_ChoosePixelFormat(device, hdc, color_format, ds_format, auxBuffers, numSamples, FALSE /* findCompatible */); /* Try to locate a compatible format if we weren't able to find anything. */ if (!pixel_format) { TRACE("Trying to locate a compatible pixel format because an exact match failed.\n"); pixel_format = WineD3D_ChoosePixelFormat(device, hdc, color_format, ds_format, auxBuffers, 0 /* numSamples */, TRUE /* findCompatible */); } /* If we still don't have a pixel format, something is very wrong as ChoosePixelFormat barely fails */ if (!pixel_format) { ERR("Can't find a suitable pixel format.\n"); goto out; } DescribePixelFormat(hdc, pixel_format, sizeof(pfd), &pfd); if (!context_set_pixel_format(gl_info, hdc, pixel_format)) { ERR("Failed to set pixel format %d on device context %p.\n", pixel_format, hdc); goto out; } ctx = pwglCreateContext(hdc); if (device->context_count) { if (!pwglShareLists(device->contexts[0]->glCtx, ctx)) { DWORD err = GetLastError(); ERR("wglShareLists(%p, %p) failed, last error %#x.\n", device->contexts[0]->glCtx, ctx, err); } } if(!ctx) { ERR("Failed to create a WGL context\n"); goto out; } if (!device_context_add(device, ret)) { ERR("Failed to add the newly created context to the context list\n"); if (!pwglDeleteContext(ctx)) { DWORD err = GetLastError(); ERR("wglDeleteContext(%p) failed, last error %#x.\n", ctx, err); } goto out; } ret->gl_info = gl_info; /* Mark all states dirty to force a proper initialization of the states * on the first use of the context. */ for (state = 0; state <= STATE_HIGHEST; ++state) { if (device->StateTable[state].representative) context_invalidate_state(ret, state, device->StateTable); } ret->swapchain = swapchain; ret->current_rt = target; ret->tid = GetCurrentThreadId(); ret->render_offscreen = surface_is_offscreen(target); ret->draw_buffers_mask = generate_rt_mask(GL_BACK); ret->valid = 1; ret->glCtx = ctx; ret->win_handle = swapchain->win_handle; ret->hdc = hdc; ret->pixel_format = pixel_format; if (device->shader_backend->shader_dirtifyable_constants()) { /* Create the dirty constants array and initialize them to dirty */ ret->vshader_const_dirty = HeapAlloc(GetProcessHeap(), 0, sizeof(*ret->vshader_const_dirty) * device->d3d_vshader_constantF); ret->pshader_const_dirty = HeapAlloc(GetProcessHeap(), 0, sizeof(*ret->pshader_const_dirty) * device->d3d_pshader_constantF); memset(ret->vshader_const_dirty, 1, sizeof(*ret->vshader_const_dirty) * device->d3d_vshader_constantF); memset(ret->pshader_const_dirty, 1, sizeof(*ret->pshader_const_dirty) * device->d3d_pshader_constantF); } ret->blit_targets = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, gl_info->limits.buffers * sizeof(*ret->blit_targets)); if (!ret->blit_targets) goto out; ret->draw_buffers = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, gl_info->limits.buffers * sizeof(*ret->draw_buffers)); if (!ret->draw_buffers) goto out; ret->free_occlusion_query_size = 4; ret->free_occlusion_queries = HeapAlloc(GetProcessHeap(), 0, ret->free_occlusion_query_size * sizeof(*ret->free_occlusion_queries)); if (!ret->free_occlusion_queries) goto out; list_init(&ret->occlusion_queries); ret->free_event_query_size = 4; ret->free_event_queries = HeapAlloc(GetProcessHeap(), 0, ret->free_event_query_size * sizeof(*ret->free_event_queries)); if (!ret->free_event_queries) goto out; list_init(&ret->event_queries); TRACE("Successfully created new context %p\n", ret); list_init(&ret->fbo_list); list_init(&ret->fbo_destroy_list); context_enter(ret); /* Set up the context defaults */ if (!context_set_current(ret)) { ERR("Cannot activate context to set up defaults\n"); context_release(ret); goto out; } switch (swapchain->presentParms.PresentationInterval) { case WINED3DPRESENT_INTERVAL_IMMEDIATE: swap_interval = 0; break; case WINED3DPRESENT_INTERVAL_DEFAULT: case WINED3DPRESENT_INTERVAL_ONE: swap_interval = 1; break; case WINED3DPRESENT_INTERVAL_TWO: swap_interval = 2; break; case WINED3DPRESENT_INTERVAL_THREE: swap_interval = 3; break; case WINED3DPRESENT_INTERVAL_FOUR: swap_interval = 4; break; default: FIXME("Unknown presentation interval %08x\n", swapchain->presentParms.PresentationInterval); swap_interval = 1; } if (gl_info->supported[WGL_EXT_SWAP_CONTROL]) { if (!GL_EXTCALL(wglSwapIntervalEXT(swap_interval))) ERR("wglSwapIntervalEXT failed to set swap interval %d for context %p, last error %#x\n", swap_interval, ret, GetLastError()); } ENTER_GL(); glGetIntegerv(GL_AUX_BUFFERS, &ret->aux_buffers); TRACE("Setting up the screen\n"); /* Clear the screen */ glClearColor(1.0f, 0.0f, 0.0f, 0.0f); checkGLcall("glClearColor"); glClearIndex(0); glClearDepth(1); glClearStencil(0xffff); checkGLcall("glClear"); glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE); checkGLcall("glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);"); glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT); checkGLcall("glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);"); glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR); checkGLcall("glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);"); glPixelStorei(GL_PACK_ALIGNMENT, device->surface_alignment); checkGLcall("glPixelStorei(GL_PACK_ALIGNMENT, device->surface_alignment);"); glPixelStorei(GL_UNPACK_ALIGNMENT, device->surface_alignment); checkGLcall("glPixelStorei(GL_UNPACK_ALIGNMENT, device->surface_alignment);"); if (gl_info->supported[APPLE_CLIENT_STORAGE]) { /* Most textures will use client storage if supported. Exceptions are non-native power of 2 textures * and textures in DIB sections(due to the memory protection). */ glPixelStorei(GL_UNPACK_CLIENT_STORAGE_APPLE, GL_TRUE); checkGLcall("glPixelStorei(GL_UNPACK_CLIENT_STORAGE_APPLE, GL_TRUE)"); } if (gl_info->supported[ARB_VERTEX_BLEND]) { /* Direct3D always uses n-1 weights for n world matrices and uses 1 - sum for the last one * this is equal to GL_WEIGHT_SUM_UNITY_ARB. Enabling it doesn't do anything unless * GL_VERTEX_BLEND_ARB isn't enabled too */ glEnable(GL_WEIGHT_SUM_UNITY_ARB); checkGLcall("glEnable(GL_WEIGHT_SUM_UNITY_ARB)"); } if (gl_info->supported[NV_TEXTURE_SHADER2]) { /* Set up the previous texture input for all shader units. This applies to bump mapping, and in d3d * the previous texture where to source the offset from is always unit - 1. */ for (s = 1; s < gl_info->limits.textures; ++s) { GL_EXTCALL(glActiveTextureARB(GL_TEXTURE0_ARB + s)); glTexEnvi(GL_TEXTURE_SHADER_NV, GL_PREVIOUS_TEXTURE_INPUT_NV, GL_TEXTURE0_ARB + s - 1); checkGLcall("glTexEnvi(GL_TEXTURE_SHADER_NV, GL_PREVIOUS_TEXTURE_INPUT_NV, ..."); } } if (gl_info->supported[ARB_FRAGMENT_PROGRAM]) { /* MacOS(radeon X1600 at least, but most likely others too) refuses to draw if GLSL and ARBFP are * enabled, but the currently bound arbfp program is 0. Enabling ARBFP with prog 0 is invalid, but * GLSL should bypass this. This causes problems in programs that never use the fixed function pipeline, * because the ARBFP extension is enabled by the ARBFP pipeline at context creation, but no program * is ever assigned. * * So make sure a program is assigned to each context. The first real ARBFP use will set a different * program and the dummy program is destroyed when the context is destroyed. */ const char *dummy_program = "!!ARBfp1.0\n" "MOV result.color, fragment.color.primary;\n" "END\n"; GL_EXTCALL(glGenProgramsARB(1, &ret->dummy_arbfp_prog)); GL_EXTCALL(glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, ret->dummy_arbfp_prog)); GL_EXTCALL(glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB, strlen(dummy_program), dummy_program)); } for (s = 0; s < gl_info->limits.point_sprite_units; ++s) { GL_EXTCALL(glActiveTextureARB(GL_TEXTURE0_ARB + s)); glTexEnvi(GL_POINT_SPRITE_ARB, GL_COORD_REPLACE_ARB, GL_TRUE); checkGLcall("glTexEnvi(GL_POINT_SPRITE_ARB, GL_COORD_REPLACE_ARB, GL_TRUE)"); } if (gl_info->supported[ARB_PROVOKING_VERTEX]) { GL_EXTCALL(glProvokingVertex(GL_FIRST_VERTEX_CONVENTION)); } else if (gl_info->supported[EXT_PROVOKING_VERTEX]) { GL_EXTCALL(glProvokingVertexEXT(GL_FIRST_VERTEX_CONVENTION_EXT)); } device->frag_pipe->enable_extension(TRUE); LEAVE_GL(); TRACE("Created context %p.\n", ret); return ret; out: HeapFree(GetProcessHeap(), 0, ret->free_event_queries); HeapFree(GetProcessHeap(), 0, ret->free_occlusion_queries); HeapFree(GetProcessHeap(), 0, ret->draw_buffers); HeapFree(GetProcessHeap(), 0, ret->blit_targets); HeapFree(GetProcessHeap(), 0, ret->pshader_const_dirty); HeapFree(GetProcessHeap(), 0, ret->vshader_const_dirty); HeapFree(GetProcessHeap(), 0, ret); return NULL; } /* Do not call while under the GL lock. */ void context_destroy(struct wined3d_device *device, struct wined3d_context *context) { BOOL destroy; TRACE("Destroying ctx %p\n", context); if (context->tid == GetCurrentThreadId() || !context->current) { context_destroy_gl_resources(context); TlsSetValue(wined3d_context_tls_idx, NULL); destroy = TRUE; } else { context->destroyed = 1; destroy = FALSE; } HeapFree(GetProcessHeap(), 0, context->draw_buffers); HeapFree(GetProcessHeap(), 0, context->blit_targets); HeapFree(GetProcessHeap(), 0, context->vshader_const_dirty); HeapFree(GetProcessHeap(), 0, context->pshader_const_dirty); device_context_remove(device, context); if (destroy) HeapFree(GetProcessHeap(), 0, context); } /* GL locking is done by the caller */ static inline void set_blit_dimension(UINT width, UINT height) { glMatrixMode(GL_PROJECTION); checkGLcall("glMatrixMode(GL_PROJECTION)"); glLoadIdentity(); checkGLcall("glLoadIdentity()"); glOrtho(0, width, 0, height, 0.0, -1.0); checkGLcall("glOrtho"); glViewport(0, 0, width, height); checkGLcall("glViewport"); } /***************************************************************************** * SetupForBlit * * Sets up a context for DirectDraw blitting. * All texture units are disabled, texture unit 0 is set as current unit * fog, lighting, blending, alpha test, z test, scissor test, culling disabled * color writing enabled for all channels * register combiners disabled, shaders disabled * world matrix is set to identity, texture matrix 0 too * projection matrix is setup for drawing screen coordinates * * Params: * This: Device to activate the context for * context: Context to setup * *****************************************************************************/ /* Context activation is done by the caller. */ static void SetupForBlit(struct wined3d_device *device, struct wined3d_context *context) { int i; const struct StateEntry *StateTable = device->StateTable; const struct wined3d_gl_info *gl_info = context->gl_info; UINT width = context->current_rt->resource.width; UINT height = context->current_rt->resource.height; DWORD sampler; TRACE("Setting up context %p for blitting\n", context); if(context->last_was_blit) { if(context->blit_w != width || context->blit_h != height) { ENTER_GL(); set_blit_dimension(width, height); LEAVE_GL(); context->blit_w = width; context->blit_h = height; /* No need to dirtify here, the states are still dirtified because they weren't * applied since the last SetupForBlit call. Otherwise last_was_blit would not * be set */ } TRACE("Context is already set up for blitting, nothing to do\n"); return; } context->last_was_blit = TRUE; /* TODO: Use a display list */ /* Disable shaders */ ENTER_GL(); device->shader_backend->shader_select(context, FALSE, FALSE); LEAVE_GL(); context_invalidate_state(context, STATE_VSHADER, StateTable); context_invalidate_state(context, STATE_PIXELSHADER, StateTable); /* Call ENTER_GL() once for all gl calls below. In theory we should not call * helper functions in between gl calls. This function is full of context_invalidate_state * which can safely be called from here, we only lock once instead locking/unlocking * after each GL call. */ ENTER_GL(); /* Disable all textures. The caller can then bind a texture it wants to blit * from * * The blitting code uses (for now) the fixed function pipeline, so make sure to reset all fixed * function texture unit. No need to care for higher samplers */ for (i = gl_info->limits.textures - 1; i > 0 ; --i) { sampler = device->rev_tex_unit_map[i]; GL_EXTCALL(glActiveTextureARB(GL_TEXTURE0_ARB + i)); checkGLcall("glActiveTextureARB"); if (gl_info->supported[ARB_TEXTURE_CUBE_MAP]) { glDisable(GL_TEXTURE_CUBE_MAP_ARB); checkGLcall("glDisable GL_TEXTURE_CUBE_MAP_ARB"); } glDisable(GL_TEXTURE_3D); checkGLcall("glDisable GL_TEXTURE_3D"); if (gl_info->supported[ARB_TEXTURE_RECTANGLE]) { glDisable(GL_TEXTURE_RECTANGLE_ARB); checkGLcall("glDisable GL_TEXTURE_RECTANGLE_ARB"); } glDisable(GL_TEXTURE_2D); checkGLcall("glDisable GL_TEXTURE_2D"); glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); checkGLcall("glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);"); if (sampler != WINED3D_UNMAPPED_STAGE) { if (sampler < MAX_TEXTURES) context_invalidate_state(context, STATE_TEXTURESTAGE(sampler, WINED3DTSS_COLOROP), StateTable); context_invalidate_state(context, STATE_SAMPLER(sampler), StateTable); } } GL_EXTCALL(glActiveTextureARB(GL_TEXTURE0_ARB)); checkGLcall("glActiveTextureARB"); sampler = device->rev_tex_unit_map[0]; if (gl_info->supported[ARB_TEXTURE_CUBE_MAP]) { glDisable(GL_TEXTURE_CUBE_MAP_ARB); checkGLcall("glDisable GL_TEXTURE_CUBE_MAP_ARB"); } glDisable(GL_TEXTURE_3D); checkGLcall("glDisable GL_TEXTURE_3D"); if (gl_info->supported[ARB_TEXTURE_RECTANGLE]) { glDisable(GL_TEXTURE_RECTANGLE_ARB); checkGLcall("glDisable GL_TEXTURE_RECTANGLE_ARB"); } glDisable(GL_TEXTURE_2D); checkGLcall("glDisable GL_TEXTURE_2D"); glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); glMatrixMode(GL_TEXTURE); checkGLcall("glMatrixMode(GL_TEXTURE)"); glLoadIdentity(); checkGLcall("glLoadIdentity()"); if (gl_info->supported[EXT_TEXTURE_LOD_BIAS]) { glTexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT, GL_TEXTURE_LOD_BIAS_EXT, 0.0f); checkGLcall("glTexEnvf GL_TEXTURE_LOD_BIAS_EXT ..."); } if (sampler != WINED3D_UNMAPPED_STAGE) { if (sampler < MAX_TEXTURES) { context_invalidate_state(context, STATE_TRANSFORM(WINED3DTS_TEXTURE0 + sampler), StateTable); context_invalidate_state(context, STATE_TEXTURESTAGE(sampler, WINED3DTSS_COLOROP), StateTable); } context_invalidate_state(context, STATE_SAMPLER(sampler), StateTable); } /* Other misc states */ glDisable(GL_ALPHA_TEST); checkGLcall("glDisable(GL_ALPHA_TEST)"); context_invalidate_state(context, STATE_RENDER(WINED3DRS_ALPHATESTENABLE), StateTable); glDisable(GL_LIGHTING); checkGLcall("glDisable GL_LIGHTING"); context_invalidate_state(context, STATE_RENDER(WINED3DRS_LIGHTING), StateTable); glDisable(GL_DEPTH_TEST); checkGLcall("glDisable GL_DEPTH_TEST"); context_invalidate_state(context, STATE_RENDER(WINED3DRS_ZENABLE), StateTable); glDisableWINE(GL_FOG); checkGLcall("glDisable GL_FOG"); context_invalidate_state(context, STATE_RENDER(WINED3DRS_FOGENABLE), StateTable); glDisable(GL_BLEND); checkGLcall("glDisable GL_BLEND"); context_invalidate_state(context, STATE_RENDER(WINED3DRS_ALPHABLENDENABLE), StateTable); glDisable(GL_CULL_FACE); checkGLcall("glDisable GL_CULL_FACE"); context_invalidate_state(context, STATE_RENDER(WINED3DRS_CULLMODE), StateTable); glDisable(GL_STENCIL_TEST); checkGLcall("glDisable GL_STENCIL_TEST"); context_invalidate_state(context, STATE_RENDER(WINED3DRS_STENCILENABLE), StateTable); glDisable(GL_SCISSOR_TEST); checkGLcall("glDisable GL_SCISSOR_TEST"); context_invalidate_state(context, STATE_RENDER(WINED3DRS_SCISSORTESTENABLE), StateTable); if (gl_info->supported[ARB_POINT_SPRITE]) { glDisable(GL_POINT_SPRITE_ARB); checkGLcall("glDisable GL_POINT_SPRITE_ARB"); context_invalidate_state(context, STATE_RENDER(WINED3DRS_POINTSPRITEENABLE), StateTable); } glColorMask(GL_TRUE, GL_TRUE,GL_TRUE,GL_TRUE); checkGLcall("glColorMask"); context_invalidate_state(context, STATE_RENDER(WINED3DRS_COLORWRITEENABLE), StateTable); context_invalidate_state(context, STATE_RENDER(WINED3DRS_COLORWRITEENABLE1), StateTable); context_invalidate_state(context, STATE_RENDER(WINED3DRS_COLORWRITEENABLE2), StateTable); context_invalidate_state(context, STATE_RENDER(WINED3DRS_COLORWRITEENABLE3), StateTable); if (gl_info->supported[EXT_SECONDARY_COLOR]) { glDisable(GL_COLOR_SUM_EXT); context_invalidate_state(context, STATE_RENDER(WINED3DRS_SPECULARENABLE), StateTable); checkGLcall("glDisable(GL_COLOR_SUM_EXT)"); } /* Setup transforms */ glMatrixMode(GL_MODELVIEW); checkGLcall("glMatrixMode(GL_MODELVIEW)"); glLoadIdentity(); checkGLcall("glLoadIdentity()"); context_invalidate_state(context, STATE_TRANSFORM(WINED3DTS_WORLDMATRIX(0)), StateTable); context->last_was_rhw = TRUE; context_invalidate_state(context, STATE_VDECL, StateTable); /* because of last_was_rhw = TRUE */ glDisable(GL_CLIP_PLANE0); checkGLcall("glDisable(clip plane 0)"); glDisable(GL_CLIP_PLANE1); checkGLcall("glDisable(clip plane 1)"); glDisable(GL_CLIP_PLANE2); checkGLcall("glDisable(clip plane 2)"); glDisable(GL_CLIP_PLANE3); checkGLcall("glDisable(clip plane 3)"); glDisable(GL_CLIP_PLANE4); checkGLcall("glDisable(clip plane 4)"); glDisable(GL_CLIP_PLANE5); checkGLcall("glDisable(clip plane 5)"); context_invalidate_state(context, STATE_RENDER(WINED3DRS_CLIPPING), StateTable); set_blit_dimension(width, height); device->frag_pipe->enable_extension(FALSE); LEAVE_GL(); context->blit_w = width; context->blit_h = height; context_invalidate_state(context, STATE_VIEWPORT, StateTable); context_invalidate_state(context, STATE_TRANSFORM(WINED3DTS_PROJECTION), StateTable); } /* Do not call while under the GL lock. */ static struct wined3d_context *FindContext(const struct wined3d_device *device, const struct wined3d_surface *target) { struct wined3d_context *current_context = context_get_current(); struct wined3d_context *context; if (current_context && current_context->destroyed) current_context = NULL; if (!target) { if (current_context && current_context->current_rt && current_context->swapchain->device == device) { target = current_context->current_rt; } else { struct wined3d_swapchain *swapchain = device->swapchains[0]; if (swapchain->back_buffers) target = swapchain->back_buffers[0]; else target = swapchain->front_buffer; } } if (current_context && current_context->current_rt == target) { context_update_window(current_context); return current_context; } if (target->container.type == WINED3D_CONTAINER_SWAPCHAIN) { TRACE("Rendering onscreen\n"); context = swapchain_get_context(target->container.u.swapchain); } else { TRACE("Rendering offscreen\n"); /* Stay with the current context if possible. Otherwise use the * context for the primary swapchain. */ if (current_context && current_context->swapchain->device == device) context = current_context; else context = swapchain_get_context(device->swapchains[0]); } context_update_window(context); return context; } static inline BOOL is_rt_mask_onscreen(DWORD rt_mask) { return rt_mask & (1 << 31); } static inline GLenum draw_buffer_from_rt_mask(DWORD rt_mask) { return rt_mask & ~(1 << 31); } /* Context activation and GL locking are done by the caller. */ static void context_apply_draw_buffers(struct wined3d_context *context, DWORD rt_mask) { if (!rt_mask) { glDrawBuffer(GL_NONE); checkGLcall("glDrawBuffer()"); } else if (is_rt_mask_onscreen(rt_mask)) { glDrawBuffer(draw_buffer_from_rt_mask(rt_mask)); checkGLcall("glDrawBuffer()"); } else { if (wined3d_settings.offscreen_rendering_mode == ORM_FBO) { const struct wined3d_gl_info *gl_info = context->gl_info; unsigned int i = 0; while (rt_mask) { if (rt_mask & 1) context->draw_buffers[i] = GL_COLOR_ATTACHMENT0 + i; else context->draw_buffers[i] = GL_NONE; rt_mask >>= 1; ++i; } if (gl_info->supported[ARB_DRAW_BUFFERS]) { GL_EXTCALL(glDrawBuffersARB(i, context->draw_buffers)); checkGLcall("glDrawBuffers()"); } else { glDrawBuffer(context->draw_buffers[0]); checkGLcall("glDrawBuffer()"); } } else { ERR("Unexpected draw buffers mask with backbuffer ORM.\n"); } } } /* GL locking is done by the caller. */ void context_set_draw_buffer(struct wined3d_context *context, GLenum buffer) { glDrawBuffer(buffer); checkGLcall("glDrawBuffer()"); context->draw_buffers_mask = generate_rt_mask(buffer); } static inline void context_set_render_offscreen(struct wined3d_context *context, const struct StateEntry *StateTable, BOOL offscreen) { if (context->render_offscreen == offscreen) return; context_invalidate_state(context, STATE_POINTSPRITECOORDORIGIN, StateTable); context_invalidate_state(context, STATE_TRANSFORM(WINED3DTS_PROJECTION), StateTable); context_invalidate_state(context, STATE_VIEWPORT, StateTable); context_invalidate_state(context, STATE_SCISSORRECT, StateTable); context_invalidate_state(context, STATE_FRONTFACE, StateTable); context->render_offscreen = offscreen; } static BOOL match_depth_stencil_format(const struct wined3d_format *existing, const struct wined3d_format *required) { BYTE existing_depth, existing_stencil, required_depth, required_stencil; if (existing == required) return TRUE; if ((existing->flags & WINED3DFMT_FLAG_FLOAT) != (required->flags & WINED3DFMT_FLAG_FLOAT)) return FALSE; getDepthStencilBits(existing, &existing_depth, &existing_stencil); getDepthStencilBits(required, &required_depth, &required_stencil); if(existing_depth < required_depth) return FALSE; /* If stencil bits are used the exact amount is required - otherwise wrapping * won't work correctly */ if(required_stencil && required_stencil != existing_stencil) return FALSE; return TRUE; } /* The caller provides a context */ static void context_validate_onscreen_formats(struct wined3d_device *device, struct wined3d_context *context, const struct wined3d_surface *depth_stencil) { /* Onscreen surfaces are always in a swapchain */ struct wined3d_swapchain *swapchain = context->current_rt->container.u.swapchain; if (context->render_offscreen || !depth_stencil) return; if (match_depth_stencil_format(swapchain->ds_format, depth_stencil->resource.format)) return; /* TODO: If the requested format would satisfy the needs of the existing one(reverse match), * or no onscreen depth buffer was created, the OpenGL drawable could be changed to the new * format. */ WARN("Depth stencil format is not supported by WGL, rendering the backbuffer in an FBO\n"); /* The currently active context is the necessary context to access the swapchain's onscreen buffers */ surface_load_location(context->current_rt, SFLAG_INTEXTURE, NULL); swapchain->render_to_fbo = TRUE; context_set_render_offscreen(context, device->StateTable, TRUE); } static DWORD generate_rt_mask_no_fbo(const struct wined3d_device *device, const struct wined3d_surface *rt) { if (!rt || rt->resource.format->id == WINED3DFMT_NULL) return 0; else if (rt->container.type == WINED3D_CONTAINER_SWAPCHAIN) return generate_rt_mask_from_surface(rt); else return generate_rt_mask(device->offscreenBuffer); } /* Context activation is done by the caller. */ void context_apply_blit_state(struct wined3d_context *context, struct wined3d_device *device) { DWORD rt_mask; if (wined3d_settings.offscreen_rendering_mode == ORM_FBO) { context_validate_onscreen_formats(device, context, NULL); if (context->render_offscreen) { surface_internal_preload(context->current_rt, SRGB_RGB); ENTER_GL(); context_apply_fbo_state_blit(context, GL_FRAMEBUFFER, context->current_rt, NULL, SFLAG_INTEXTURE); LEAVE_GL(); if (context->current_rt && context->current_rt->resource.format->id != WINED3DFMT_NULL) rt_mask = 1; else rt_mask = 0; } else { ENTER_GL(); context_bind_fbo(context, GL_FRAMEBUFFER, NULL); LEAVE_GL(); rt_mask = generate_rt_mask_from_surface(context->current_rt); } } else { rt_mask = generate_rt_mask_no_fbo(device, context->current_rt); } ENTER_GL(); if (rt_mask != context->draw_buffers_mask) { context_apply_draw_buffers(context, rt_mask); context->draw_buffers_mask = rt_mask; } if (wined3d_settings.offscreen_rendering_mode == ORM_FBO) { context_check_fbo_status(context, GL_FRAMEBUFFER); } LEAVE_GL(); SetupForBlit(device, context); } static BOOL context_validate_rt_config(UINT rt_count, struct wined3d_surface * const *rts, const struct wined3d_surface *ds) { unsigned int i; if (ds) return TRUE; for (i = 0; i < rt_count; ++i) { if (rts[i] && rts[i]->resource.format->id != WINED3DFMT_NULL) return TRUE; } WARN("Invalid render target config, need at least one attachment.\n"); return FALSE; } /* Context activation is done by the caller. */ BOOL context_apply_clear_state(struct wined3d_context *context, struct wined3d_device *device, UINT rt_count, struct wined3d_surface **rts, struct wined3d_surface *depth_stencil) { const struct StateEntry *state_table = device->StateTable; DWORD rt_mask = 0; UINT i; if (!context_validate_rt_config(rt_count, rts, depth_stencil)) return FALSE; if (wined3d_settings.offscreen_rendering_mode == ORM_FBO) { context_validate_onscreen_formats(device, context, depth_stencil); ENTER_GL(); if (!rt_count || surface_is_offscreen(rts[0])) { for (i = 0; i < rt_count; ++i) { context->blit_targets[i] = rts[i]; if (rts[i] && rts[i]->resource.format->id != WINED3DFMT_NULL) rt_mask |= (1 << i); } while (i < context->gl_info->limits.buffers) { context->blit_targets[i] = NULL; ++i; } context_apply_fbo_state(context, GL_FRAMEBUFFER, context->blit_targets, depth_stencil, SFLAG_INTEXTURE); glReadBuffer(GL_NONE); checkGLcall("glReadBuffer"); } else { context_apply_fbo_state(context, GL_FRAMEBUFFER, NULL, NULL, SFLAG_INDRAWABLE); rt_mask = generate_rt_mask_from_surface(rts[0]); } LEAVE_GL(); } else { rt_mask = generate_rt_mask_no_fbo(device, rts[0]); } ENTER_GL(); if (rt_mask != context->draw_buffers_mask) { context_apply_draw_buffers(context, rt_mask); context->draw_buffers_mask = rt_mask; } if (wined3d_settings.offscreen_rendering_mode == ORM_FBO) { context_check_fbo_status(context, GL_FRAMEBUFFER); } if (context->last_was_blit) { device->frag_pipe->enable_extension(TRUE); context->last_was_blit = FALSE; } /* Blending and clearing should be orthogonal, but tests on the nvidia * driver show that disabling blending when clearing improves the clearing * performance incredibly. */ glDisable(GL_BLEND); glEnable(GL_SCISSOR_TEST); checkGLcall("glEnable GL_SCISSOR_TEST"); LEAVE_GL(); context_invalidate_state(context, STATE_RENDER(WINED3DRS_ALPHABLENDENABLE), state_table); context_invalidate_state(context, STATE_RENDER(WINED3DRS_SCISSORTESTENABLE), state_table); context_invalidate_state(context, STATE_SCISSORRECT, state_table); return TRUE; } /* Context activation is done by the caller. */ BOOL context_apply_draw_state(struct wined3d_context *context, struct wined3d_device *device) { const struct StateEntry *state_table = device->StateTable; const struct wined3d_fb_state *fb = &device->fb; unsigned int i; DWORD rt_mask; if (!context_validate_rt_config(context->gl_info->limits.buffers, fb->render_targets, fb->depth_stencil)) return FALSE; /* Preload resources before FBO setup. Texture preload in particular may * result in changes to the current FBO, due to using e.g. FBO blits for * updating a resource location. */ device_update_tex_unit_map(device); device_preload_textures(device); if (isStateDirty(context, STATE_VDECL) || isStateDirty(context, STATE_STREAMSRC)) device_update_stream_info(device, context->gl_info); if (wined3d_settings.offscreen_rendering_mode == ORM_FBO) { context_validate_onscreen_formats(device, context, fb->depth_stencil); if (!context->render_offscreen) { ENTER_GL(); context_apply_fbo_state(context, GL_FRAMEBUFFER, NULL, NULL, SFLAG_INDRAWABLE); LEAVE_GL(); rt_mask = generate_rt_mask_from_surface(fb->render_targets[0]); } else { const struct wined3d_shader *ps = device->stateBlock->state.pixel_shader; DWORD rt_mask_bits; struct wined3d_surface **rts = fb->render_targets; ENTER_GL(); context_apply_fbo_state(context, GL_FRAMEBUFFER, fb->render_targets, fb->depth_stencil, SFLAG_INTEXTURE); glReadBuffer(GL_NONE); checkGLcall("glReadBuffer"); LEAVE_GL(); rt_mask = ps ? ps->reg_maps.rt_mask : 1; rt_mask &= device->valid_rt_mask; rt_mask_bits = rt_mask; i = 0; while (rt_mask_bits) { rt_mask_bits &= ~(1 << i); if (!rts[i] || rts[i]->resource.format->id == WINED3DFMT_NULL) rt_mask &= ~(1 << i); i++; } } } else { rt_mask = generate_rt_mask_no_fbo(device, fb->render_targets[0]); } ENTER_GL(); if (context->draw_buffers_mask != rt_mask) { context_apply_draw_buffers(context, rt_mask); context->draw_buffers_mask = rt_mask; } if (wined3d_settings.offscreen_rendering_mode == ORM_FBO) { context_check_fbo_status(context, GL_FRAMEBUFFER); } if (context->last_was_blit) { device->frag_pipe->enable_extension(TRUE); } for (i = 0; i < context->numDirtyEntries; ++i) { DWORD rep = context->dirtyArray[i]; DWORD idx = rep / (sizeof(*context->isStateDirty) * CHAR_BIT); BYTE shift = rep & ((sizeof(*context->isStateDirty) * CHAR_BIT) - 1); context->isStateDirty[idx] &= ~(1 << shift); state_table[rep].apply(rep, device->stateBlock, context); } LEAVE_GL(); context->numDirtyEntries = 0; /* This makes the whole list clean */ context->last_was_blit = FALSE; return TRUE; } static void context_setup_target(struct wined3d_device *device, struct wined3d_context *context, struct wined3d_surface *target) { BOOL old_render_offscreen = context->render_offscreen, render_offscreen; const struct StateEntry *StateTable = device->StateTable; if (!target) return; render_offscreen = surface_is_offscreen(target); if (context->current_rt == target && render_offscreen == old_render_offscreen) return; /* To compensate the lack of format switching with some offscreen rendering methods and on onscreen buffers * the alpha blend state changes with different render target formats. */ if (!context->current_rt) { context_invalidate_state(context, STATE_RENDER(WINED3DRS_ALPHABLENDENABLE), StateTable); } else { const struct wined3d_format *old = context->current_rt->resource.format; const struct wined3d_format *new = target->resource.format; if (old->id != new->id) { /* Disable blending when the alpha mask has changed and when a format doesn't support blending. */ if ((old->alpha_mask && !new->alpha_mask) || (!old->alpha_mask && new->alpha_mask) || !(new->flags & WINED3DFMT_FLAG_POSTPIXELSHADER_BLENDING)) context_invalidate_state(context, STATE_RENDER(WINED3DRS_ALPHABLENDENABLE), StateTable); /* Update sRGB writing when switching between formats that do/do not support sRGB writing */ if ((old->flags & WINED3DFMT_FLAG_SRGB_WRITE) != (new->flags & WINED3DFMT_FLAG_SRGB_WRITE)) context_invalidate_state(context, STATE_RENDER(WINED3DRS_SRGBWRITEENABLE), StateTable); } /* When switching away from an offscreen render target, and we're not * using FBOs, we have to read the drawable into the texture. This is * done via PreLoad (and SFLAG_INDRAWABLE set on the surface). There * are some things that need care though. PreLoad needs a GL context, * and FindContext is called before the context is activated. It also * has to be called with the old rendertarget active, otherwise a * wrong drawable is read. */ if (wined3d_settings.offscreen_rendering_mode != ORM_FBO && old_render_offscreen && context->current_rt != target) { /* Read the back buffer of the old drawable into the destination texture. */ if (context->current_rt->texture_name_srgb) surface_internal_preload(context->current_rt, SRGB_SRGB); surface_internal_preload(context->current_rt, SRGB_RGB); surface_modify_location(context->current_rt, SFLAG_INDRAWABLE, FALSE); } } context->current_rt = target; context_set_render_offscreen(context, StateTable, render_offscreen); } /* Do not call while under the GL lock. */ struct wined3d_context *context_acquire(struct wined3d_device *device, struct wined3d_surface *target) { struct wined3d_context *current_context = context_get_current(); struct wined3d_context *context; TRACE("device %p, target %p.\n", device, target); context = FindContext(device, target); context_setup_target(device, context, target); context_enter(context); if (!context->valid) return context; if (context != current_context) { if (!context_set_current(context)) { ERR("Failed to activate the new context.\n"); } else { ENTER_GL(); device->frag_pipe->enable_extension(!context->last_was_blit); LEAVE_GL(); } if (context->vshader_const_dirty) { memset(context->vshader_const_dirty, 1, sizeof(*context->vshader_const_dirty) * device->d3d_vshader_constantF); device->highest_dirty_vs_const = device->d3d_vshader_constantF; } if (context->pshader_const_dirty) { memset(context->pshader_const_dirty, 1, sizeof(*context->pshader_const_dirty) * device->d3d_pshader_constantF); device->highest_dirty_ps_const = device->d3d_pshader_constantF; } } else if (context->restore_ctx) { context_set_gl_context(context); } return context; }