diff options
Diffstat (limited to 'src/mesa/main')
| -rw-r--r-- | src/mesa/main/condrender.c | 143 | ||||
| -rw-r--r-- | src/mesa/main/condrender.h | 45 | ||||
| -rw-r--r-- | src/mesa/main/dd.h | 5 | ||||
| -rw-r--r-- | src/mesa/main/mtypes.h | 4 |
4 files changed, 197 insertions, 0 deletions
diff --git a/src/mesa/main/condrender.c b/src/mesa/main/condrender.c new file mode 100644 index 00000000000..52762133a0e --- /dev/null +++ b/src/mesa/main/condrender.c @@ -0,0 +1,143 @@ +/* + * 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 "queryobj.h" + + +GLAPI void GLAPIENTRY +_mesa_BeginConditionalRender(GLuint queryId, GLenum mode) +{ + struct gl_query_object *q; + GET_CURRENT_CONTEXT(ctx); + + if (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); +} + + +GLAPI void APIENTRY +_mesa_EndConditionalRender(void) +{ + GET_CURRENT_CONTEXT(ctx); + + if (!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 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(GLcontext *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; + } +} diff --git a/src/mesa/main/condrender.h b/src/mesa/main/condrender.h new file mode 100644 index 00000000000..d55e9805fe9 --- /dev/null +++ b/src/mesa/main/condrender.h @@ -0,0 +1,45 @@ +/* + * 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. + */ + +#ifndef CONDRENDER_H +#define CONDRENDER_H + + +#include "glheader.h" +#include "context.h" + + +extern void GLAPIENTRY +_mesa_BeginConditionalRender(GLuint queryId, GLenum mode); + +extern void APIENTRY +_mesa_EndConditionalRender(void); + +extern GLboolean +_mesa_check_conditional_render(GLcontext *ctx); + + +#endif /* CONDRENDER_H */ diff --git a/src/mesa/main/dd.h b/src/mesa/main/dd.h index 496b0d2ba8b..e99e87d9059 100644 --- a/src/mesa/main/dd.h +++ b/src/mesa/main/dd.h @@ -1016,6 +1016,11 @@ struct dd_function_table { GLbitfield, GLuint64); /*@}*/ #endif + + /** GL_NV_conditional_render */ + void (*BeginConditionalRender)(GLcontext *ctx, struct gl_query_object *q, + GLenum mode); + void (*EndConditionalRender)(GLcontext *ctx, struct gl_query_object *q); }; diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h index 849d1689c35..1a7f87897a1 100644 --- a/src/mesa/main/mtypes.h +++ b/src/mesa/main/mtypes.h @@ -1899,6 +1899,10 @@ struct gl_query_state struct _mesa_HashTable *QueryObjects; struct gl_query_object *CurrentOcclusionObject; /* GL_ARB_occlusion_query */ struct gl_query_object *CurrentTimerObject; /* GL_EXT_timer_query */ + + /** GL_NV_conditional_render */ + struct gl_query_object *CondRenderQuery; + GLenum CondRenderMode; }; |