diff options
Diffstat (limited to 'mesalib/src/mesa/main/condrender.c')
-rw-r--r-- | mesalib/src/mesa/main/condrender.c | 297 |
1 files changed, 149 insertions, 148 deletions
diff --git a/mesalib/src/mesa/main/condrender.c b/mesalib/src/mesa/main/condrender.c index 2c5ed0269..57f371521 100644 --- a/mesalib/src/mesa/main/condrender.c +++ b/mesalib/src/mesa/main/condrender.c @@ -1,148 +1,149 @@ -/*
- * Mesa 3-D graphics library
- * Version: 7.8
- *
- * Copyright (C) 2009 VMware, Inc. 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, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- */
-
-/**
- * \file condrender.c
- * Conditional rendering functions
- *
- * \author Brian Paul
- */
-
-#include "glheader.h"
-#include "condrender.h"
-#include "enums.h"
-#include "mtypes.h"
-#include "queryobj.h"
-
-
-void GLAPIENTRY
-_mesa_BeginConditionalRender(GLuint queryId, GLenum mode)
-{
- struct gl_query_object *q;
- GET_CURRENT_CONTEXT(ctx);
-
- if (!ctx->Extensions.NV_conditional_render || ctx->Query.CondRenderQuery) {
- _mesa_error(ctx, GL_INVALID_OPERATION, "glBeginConditionalRender()");
- return;
- }
-
- ASSERT(ctx->Query.CondRenderMode == GL_NONE);
-
- switch (mode) {
- case GL_QUERY_WAIT:
- case GL_QUERY_NO_WAIT:
- case GL_QUERY_BY_REGION_WAIT:
- case GL_QUERY_BY_REGION_NO_WAIT:
- /* OK */
- break;
- default:
- _mesa_error(ctx, GL_INVALID_ENUM, "glBeginConditionalRender(mode=%s)",
- _mesa_lookup_enum_by_nr(mode));
- return;
- }
-
- q = _mesa_lookup_query_object(ctx, queryId);
- if (!q) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glBeginConditionalRender(bad queryId=%u)", queryId);
- return;
- }
- ASSERT(q->Id == queryId);
-
- if (q->Target != GL_SAMPLES_PASSED) {
- _mesa_error(ctx, GL_INVALID_OPERATION, "glBeginConditionalRender()");
- return;
- }
-
- ctx->Query.CondRenderQuery = q;
- ctx->Query.CondRenderMode = mode;
-
- if (ctx->Driver.BeginConditionalRender)
- ctx->Driver.BeginConditionalRender(ctx, q, mode);
-}
-
-
-void APIENTRY
-_mesa_EndConditionalRender(void)
-{
- GET_CURRENT_CONTEXT(ctx);
-
- FLUSH_VERTICES(ctx, 0x0);
-
- if (!ctx->Extensions.NV_conditional_render || !ctx->Query.CondRenderQuery) {
- _mesa_error(ctx, GL_INVALID_OPERATION, "glEndConditionalRender()");
- return;
- }
-
- if (ctx->Driver.EndConditionalRender)
- ctx->Driver.EndConditionalRender(ctx, ctx->Query.CondRenderQuery);
-
- ctx->Query.CondRenderQuery = NULL;
- ctx->Query.CondRenderMode = GL_NONE;
-}
-
-
-/**
- * This function is called by software rendering commands (all point,
- * line triangle drawing, glClear, glDrawPixels, glCopyPixels, and
- * glBitmap, glBlitFramebuffer) to determine if subsequent drawing
- * commands should be
- * executed or discarded depending on the current conditional
- * rendering state. Ideally, this check would be implemented by the
- * GPU when doing hardware rendering. XXX should this function be
- * called via a new driver hook?
- *
- * \return GL_TRUE if we should render, GL_FALSE if we should discard
- */
-GLboolean
-_mesa_check_conditional_render(struct gl_context *ctx)
-{
- struct gl_query_object *q = ctx->Query.CondRenderQuery;
-
- if (!q) {
- /* no query in progress - draw normally */
- return GL_TRUE;
- }
-
- switch (ctx->Query.CondRenderMode) {
- case GL_QUERY_BY_REGION_WAIT:
- /* fall-through */
- case GL_QUERY_WAIT:
- if (!q->Ready) {
- ctx->Driver.WaitQuery(ctx, q);
- }
- return q->Result > 0;
- case GL_QUERY_BY_REGION_NO_WAIT:
- /* fall-through */
- case GL_QUERY_NO_WAIT:
- return q->Ready ? (q->Result > 0) : GL_TRUE;
- default:
- _mesa_problem(ctx, "Bad cond render mode %s in "
- " _mesa_check_conditional_render()",
- _mesa_lookup_enum_by_nr(ctx->Query.CondRenderMode));
- return GL_TRUE;
- }
-}
+/* + * Mesa 3-D graphics library + * Version: 7.8 + * + * Copyright (C) 2009 VMware, Inc. 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, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +/** + * \file condrender.c + * Conditional rendering functions + * + * \author Brian Paul + */ + +#include "glheader.h" +#include "condrender.h" +#include "enums.h" +#include "mtypes.h" +#include "queryobj.h" + + +void GLAPIENTRY +_mesa_BeginConditionalRender(GLuint queryId, GLenum mode) +{ + struct gl_query_object *q; + GET_CURRENT_CONTEXT(ctx); + + if (!ctx->Extensions.NV_conditional_render || ctx->Query.CondRenderQuery || + queryId == 0) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glBeginConditionalRender()"); + return; + } + + ASSERT(ctx->Query.CondRenderMode == GL_NONE); + + switch (mode) { + case GL_QUERY_WAIT: + case GL_QUERY_NO_WAIT: + case GL_QUERY_BY_REGION_WAIT: + case GL_QUERY_BY_REGION_NO_WAIT: + /* OK */ + break; + default: + _mesa_error(ctx, GL_INVALID_ENUM, "glBeginConditionalRender(mode=%s)", + _mesa_lookup_enum_by_nr(mode)); + return; + } + + q = _mesa_lookup_query_object(ctx, queryId); + if (!q) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glBeginConditionalRender(bad queryId=%u)", queryId); + return; + } + ASSERT(q->Id == queryId); + + if (q->Target != GL_SAMPLES_PASSED || q->Active) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glBeginConditionalRender()"); + return; + } + + ctx->Query.CondRenderQuery = q; + ctx->Query.CondRenderMode = mode; + + if (ctx->Driver.BeginConditionalRender) + ctx->Driver.BeginConditionalRender(ctx, q, mode); +} + + +void APIENTRY +_mesa_EndConditionalRender(void) +{ + GET_CURRENT_CONTEXT(ctx); + + FLUSH_VERTICES(ctx, 0x0); + + if (!ctx->Extensions.NV_conditional_render || !ctx->Query.CondRenderQuery) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glEndConditionalRender()"); + return; + } + + if (ctx->Driver.EndConditionalRender) + ctx->Driver.EndConditionalRender(ctx, ctx->Query.CondRenderQuery); + + ctx->Query.CondRenderQuery = NULL; + ctx->Query.CondRenderMode = GL_NONE; +} + + +/** + * This function is called by software rendering commands (all point, + * line triangle drawing, glClear, glDrawPixels, glCopyPixels, and + * glBitmap, glBlitFramebuffer) to determine if subsequent drawing + * commands should be + * executed or discarded depending on the current conditional + * rendering state. Ideally, this check would be implemented by the + * GPU when doing hardware rendering. XXX should this function be + * called via a new driver hook? + * + * \return GL_TRUE if we should render, GL_FALSE if we should discard + */ +GLboolean +_mesa_check_conditional_render(struct gl_context *ctx) +{ + struct gl_query_object *q = ctx->Query.CondRenderQuery; + + if (!q) { + /* no query in progress - draw normally */ + return GL_TRUE; + } + + switch (ctx->Query.CondRenderMode) { + case GL_QUERY_BY_REGION_WAIT: + /* fall-through */ + case GL_QUERY_WAIT: + if (!q->Ready) { + ctx->Driver.WaitQuery(ctx, q); + } + return q->Result > 0; + case GL_QUERY_BY_REGION_NO_WAIT: + /* fall-through */ + case GL_QUERY_NO_WAIT: + return q->Ready ? (q->Result > 0) : GL_TRUE; + default: + _mesa_problem(ctx, "Bad cond render mode %s in " + " _mesa_check_conditional_render()", + _mesa_lookup_enum_by_nr(ctx->Query.CondRenderMode)); + return GL_TRUE; + } +} |