diff options
author | José Fonseca <jfonseca@vmware.com> | 2010-01-08 15:42:57 +0000 |
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committer | José Fonseca <jfonseca@vmware.com> | 2010-01-08 15:42:57 +0000 |
commit | 080c40ab32b2abd6d8381b4a0cc143d36a1652b2 (patch) | |
tree | e173767ebc5a82d81b9fc086449d915e29348976 /src/mesa/main/condrender.c | |
parent | 9cdf6f025b2ed55cfb13dd09f870f01d0c7947d3 (diff) | |
parent | a1de400e8de06a80ab140bb0fa950e990607572d (diff) |
Merge remote branch 'origin/master' into lp-binning
Conflicts:
src/gallium/auxiliary/util/u_surface.c
src/gallium/drivers/llvmpipe/Makefile
src/gallium/drivers/llvmpipe/SConscript
src/gallium/drivers/llvmpipe/lp_bld_arit.c
src/gallium/drivers/llvmpipe/lp_bld_flow.c
src/gallium/drivers/llvmpipe/lp_bld_interp.c
src/gallium/drivers/llvmpipe/lp_clear.c
src/gallium/drivers/llvmpipe/lp_context.c
src/gallium/drivers/llvmpipe/lp_context.h
src/gallium/drivers/llvmpipe/lp_draw_arrays.c
src/gallium/drivers/llvmpipe/lp_jit.c
src/gallium/drivers/llvmpipe/lp_jit.h
src/gallium/drivers/llvmpipe/lp_prim_vbuf.c
src/gallium/drivers/llvmpipe/lp_setup.c
src/gallium/drivers/llvmpipe/lp_setup_point.c
src/gallium/drivers/llvmpipe/lp_state.h
src/gallium/drivers/llvmpipe/lp_state_blend.c
src/gallium/drivers/llvmpipe/lp_state_derived.c
src/gallium/drivers/llvmpipe/lp_state_fs.c
src/gallium/drivers/llvmpipe/lp_state_sampler.c
src/gallium/drivers/llvmpipe/lp_state_surface.c
src/gallium/drivers/llvmpipe/lp_tex_cache.c
src/gallium/drivers/llvmpipe/lp_tex_cache.h
src/gallium/drivers/llvmpipe/lp_tex_sample.h
src/gallium/drivers/llvmpipe/lp_tile_cache.c
Diffstat (limited to 'src/mesa/main/condrender.c')
-rw-r--r-- | src/mesa/main/condrender.c | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/src/mesa/main/condrender.c b/src/mesa/main/condrender.c new file mode 100644 index 0000000000..8d9a91d547 --- /dev/null +++ b/src/mesa/main/condrender.c @@ -0,0 +1,147 @@ +/* + * 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" + + +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(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; + } +} |