diff options
author | José Fonseca <jfonseca@vmware.com> | 2009-09-22 17:40:20 +0100 |
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committer | José Fonseca <jfonseca@vmware.com> | 2009-09-23 10:32:51 +0100 |
commit | f724036f0045bd28f323af3666c43b3ef03b6886 (patch) | |
tree | 53300e51e3c6267a651cfe45add379983c9f2a9f /src/gallium/state_trackers/wgl/stw_context.c | |
parent | 8d1af5991d739e33962e8ca52c6a5ce1c9204ce6 (diff) |
wgl: Flatten the source tree.
It is easier to have the WGL API on top of the ICD callbacks as
Microsoft's own implementation does, than to have a seperate shared
entity. This source reorganization is in antecipation of that.
Diffstat (limited to 'src/gallium/state_trackers/wgl/stw_context.c')
-rw-r--r-- | src/gallium/state_trackers/wgl/stw_context.c | 382 |
1 files changed, 382 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/wgl/stw_context.c b/src/gallium/state_trackers/wgl/stw_context.c new file mode 100644 index 0000000000..ead2c13cbf --- /dev/null +++ b/src/gallium/state_trackers/wgl/stw_context.c @@ -0,0 +1,382 @@ +/************************************************************************** + * + * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * 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, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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 <windows.h> + +#include "main/mtypes.h" +#include "main/context.h" +#include "pipe/p_compiler.h" +#include "pipe/p_context.h" +#include "state_tracker/st_context.h" +#include "state_tracker/st_public.h" + +#ifdef DEBUG +#include "trace/tr_screen.h" +#include "trace/tr_context.h" +#endif + +#include "stw_device.h" +#include "stw_winsys.h" +#include "stw_framebuffer.h" +#include "stw_pixelformat.h" +#include "stw_public.h" +#include "stw_context.h" +#include "stw_tls.h" + + +static INLINE struct stw_context * +stw_context(GLcontext *glctx) +{ + if(!glctx) + return NULL; + assert(glctx->DriverCtx); + return (struct stw_context *)glctx->DriverCtx; +} + +static INLINE struct stw_context * +stw_current_context(void) +{ + /* We must check if multiple threads are being used or GET_CURRENT_CONTEXT + * might return the current context of the thread first seen. */ + _glapi_check_multithread(); + + { + GET_CURRENT_CONTEXT( glctx ); + return stw_context(glctx); + } +} + +BOOL +stw_copy_context( + UINT_PTR hglrcSrc, + UINT_PTR hglrcDst, + UINT mask ) +{ + struct stw_context *src; + struct stw_context *dst; + BOOL ret = FALSE; + + pipe_mutex_lock( stw_dev->ctx_mutex ); + + src = stw_lookup_context_locked( hglrcSrc ); + dst = stw_lookup_context_locked( hglrcDst ); + + if (src && dst) { + /* FIXME */ + assert(0); + (void) src; + (void) dst; + (void) mask; + } + + pipe_mutex_unlock( stw_dev->ctx_mutex ); + + return ret; +} + +BOOL +stw_share_lists( + UINT_PTR hglrc1, + UINT_PTR hglrc2 ) +{ + struct stw_context *ctx1; + struct stw_context *ctx2; + BOOL ret = FALSE; + + pipe_mutex_lock( stw_dev->ctx_mutex ); + + ctx1 = stw_lookup_context_locked( hglrc1 ); + ctx2 = stw_lookup_context_locked( hglrc2 ); + + if (ctx1 && ctx2 && + ctx1->iPixelFormat == ctx2->iPixelFormat) { + ret = _mesa_share_state(ctx2->st->ctx, ctx1->st->ctx); + } + + pipe_mutex_unlock( stw_dev->ctx_mutex ); + + return ret; +} + +static void +stw_viewport(GLcontext * glctx, GLint x, GLint y, + GLsizei width, GLsizei height) +{ + struct stw_context *ctx = (struct stw_context *)glctx->DriverCtx; + struct stw_framebuffer *fb; + + fb = stw_framebuffer_from_hdc( ctx->hdc ); + if(fb) { + stw_framebuffer_update(fb); + stw_framebuffer_release(fb); + } +} + +UINT_PTR +stw_create_layer_context( + HDC hdc, + int iLayerPlane ) +{ + int iPixelFormat; + const struct stw_pixelformat_info *pfi; + GLvisual visual; + struct stw_context *ctx = NULL; + struct pipe_screen *screen = NULL; + struct pipe_context *pipe = NULL; + + if(!stw_dev) + return 0; + + if (iLayerPlane != 0) + return 0; + + iPixelFormat = GetPixelFormat(hdc); + if(!iPixelFormat) + return 0; + + pfi = stw_pixelformat_get_info( iPixelFormat - 1 ); + stw_pixelformat_visual(&visual, pfi); + + ctx = CALLOC_STRUCT( stw_context ); + if (ctx == NULL) + goto no_ctx; + + ctx->hdc = hdc; + ctx->iPixelFormat = iPixelFormat; + + screen = stw_dev->screen; + +#ifdef DEBUG + /* Unwrap screen */ + if(stw_dev->trace_running) + screen = trace_screen(screen)->screen; +#endif + + pipe = stw_dev->stw_winsys->create_context( screen ); + if (pipe == NULL) + goto no_pipe; + +#ifdef DEBUG + /* Wrap context */ + if(stw_dev->trace_running) + pipe = trace_context_create(stw_dev->screen, pipe); +#endif + + /* pass to stw_flush_frontbuffer as context_private */ + assert(!pipe->priv); + pipe->priv = hdc; + + ctx->st = st_create_context( pipe, &visual, NULL ); + if (ctx->st == NULL) + goto no_st_ctx; + + ctx->st->ctx->DriverCtx = ctx; + ctx->st->ctx->Driver.Viewport = stw_viewport; + + pipe_mutex_lock( stw_dev->ctx_mutex ); + ctx->hglrc = handle_table_add(stw_dev->ctx_table, ctx); + pipe_mutex_unlock( stw_dev->ctx_mutex ); + if (!ctx->hglrc) + goto no_hglrc; + + return ctx->hglrc; + +no_hglrc: + st_destroy_context(ctx->st); + goto no_pipe; /* st_context_destroy already destroys pipe */ +no_st_ctx: + pipe->destroy( pipe ); +no_pipe: + FREE(ctx); +no_ctx: + return 0; +} + +BOOL +stw_delete_context( + UINT_PTR hglrc ) +{ + struct stw_context *ctx ; + BOOL ret = FALSE; + + if (!stw_dev) + return FALSE; + + pipe_mutex_lock( stw_dev->ctx_mutex ); + ctx = stw_lookup_context_locked(hglrc); + handle_table_remove(stw_dev->ctx_table, hglrc); + pipe_mutex_unlock( stw_dev->ctx_mutex ); + + if (ctx) { + struct stw_context *curctx = stw_current_context(); + + /* Unbind current if deleting current context. */ + if (curctx == ctx) + st_make_current( NULL, NULL, NULL ); + + st_destroy_context(ctx->st); + FREE(ctx); + + ret = TRUE; + } + + return ret; +} + +BOOL +stw_release_context( + UINT_PTR hglrc ) +{ + struct stw_context *ctx; + + if (!stw_dev) + return FALSE; + + pipe_mutex_lock( stw_dev->ctx_mutex ); + ctx = stw_lookup_context_locked( hglrc ); + pipe_mutex_unlock( stw_dev->ctx_mutex ); + + if (!ctx) + return FALSE; + + /* The expectation is that ctx is the same context which is + * current for this thread. We should check that and return False + * if not the case. + */ + if (ctx != stw_current_context()) + return FALSE; + + if (stw_make_current( NULL, 0 ) == FALSE) + return FALSE; + + return TRUE; +} + + +UINT_PTR +stw_get_current_context( void ) +{ + struct stw_context *ctx; + + ctx = stw_current_context(); + if(!ctx) + return 0; + + return ctx->hglrc; +} + +HDC +stw_get_current_dc( void ) +{ + struct stw_context *ctx; + + ctx = stw_current_context(); + if(!ctx) + return NULL; + + return ctx->hdc; +} + +BOOL +stw_make_current( + HDC hdc, + UINT_PTR hglrc ) +{ + struct stw_context *curctx = NULL; + struct stw_context *ctx = NULL; + struct stw_framebuffer *fb = NULL; + + if (!stw_dev) + goto fail; + + curctx = stw_current_context(); + if (curctx != NULL) { + if (curctx->hglrc != hglrc) + st_flush(curctx->st, PIPE_FLUSH_RENDER_CACHE, NULL); + + /* Return if already current. */ + if (curctx->hglrc == hglrc && curctx->hdc == hdc) { + ctx = curctx; + fb = stw_framebuffer_from_hdc( hdc ); + goto success; + } + } + + if (hdc == NULL || hglrc == 0) { + return st_make_current( NULL, NULL, NULL ); + } + + pipe_mutex_lock( stw_dev->ctx_mutex ); + ctx = stw_lookup_context_locked( hglrc ); + pipe_mutex_unlock( stw_dev->ctx_mutex ); + if(!ctx) + goto fail; + + fb = stw_framebuffer_from_hdc( hdc ); + if(!fb) { + /* Applications should call SetPixelFormat before creating a context, + * but not all do, and the opengl32 runtime seems to use a default pixel + * format in some cases, so we must create a framebuffer for those here + */ + int iPixelFormat = GetPixelFormat(hdc); + if(iPixelFormat) + fb = stw_framebuffer_create( hdc, iPixelFormat ); + if(!fb) + goto fail; + } + + if(fb->iPixelFormat != ctx->iPixelFormat) + goto fail; + + /* Lazy allocation of the frame buffer */ + if(!stw_framebuffer_allocate(fb)) + goto fail; + + /* Bind the new framebuffer */ + ctx->hdc = hdc; + + /* pass to stw_flush_frontbuffer as context_private */ + ctx->st->pipe->priv = hdc; + + if(!st_make_current( ctx->st, fb->stfb, fb->stfb )) + goto fail; + +success: + assert(fb); + if(fb) { + stw_framebuffer_update(fb); + stw_framebuffer_release(fb); + } + + return TRUE; + +fail: + if(fb) + stw_framebuffer_release(fb); + st_make_current( NULL, NULL, NULL ); + return FALSE; +} |