Mesa (master): glsl: Move functions into standalone_scaffolding. cpp for later reuse.
Paul Berry
stereotype441 at kemper.freedesktop.org
Fri Jul 22 16:49:11 UTC 2011
Module: Mesa
Branch: master
Commit: f129f618fe8a5397774484f1b7afb42d4be809a0
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=f129f618fe8a5397774484f1b7afb42d4be809a0
Author: Paul Berry <stereotype441 at gmail.com>
Date: Thu Jul 7 14:01:40 2011 -0700
glsl: Move functions into standalone_scaffolding.cpp for later reuse.
This patch moves the following functions from main.cpp (the main cpp
file for the standalone executable that is used to create the built-in
functions) to standalone_scaffolding.cpp, so that they can be re-used
in other standalone executables:
- initialize_context()*
- _mesa_new_shader()
- _mesa_reference_shader()
*initialize_context contained some code that was specific to main.cpp,
so it was split into two functions: initialize_context() (which
remains in main.cpp), and initialize_context_from_defaults() (which is
in standalone_scaffolding.cpp).
---
src/glsl/Makefile | 3 +-
src/glsl/main.cpp | 60 +----------------------
src/glsl/standalone_scaffolding.cpp | 91 +++++++++++++++++++++++++++++++++++
src/glsl/standalone_scaffolding.h | 54 +++++++++++++++++++++
4 files changed, 150 insertions(+), 58 deletions(-)
diff --git a/src/glsl/Makefile b/src/glsl/Makefile
index d1422c2..edfb35e 100644
--- a/src/glsl/Makefile
+++ b/src/glsl/Makefile
@@ -95,7 +95,8 @@ GLSL2_C_SOURCES = \
../mesa/program/hash_table.c \
../mesa/program/symbol_table.c
GLSL2_CXX_SOURCES = \
- main.cpp
+ main.cpp \
+ standalone_scaffolding.cpp
GLSL2_OBJECTS = \
$(GLSL2_C_SOURCES:.c=.o) \
diff --git a/src/glsl/main.cpp b/src/glsl/main.cpp
index 7952bb1..9f85096 100644
--- a/src/glsl/main.cpp
+++ b/src/glsl/main.cpp
@@ -29,80 +29,26 @@
#include "ir_print_visitor.h"
#include "program.h"
#include "loop_analysis.h"
-
-extern "C" struct gl_shader *
-_mesa_new_shader(struct gl_context *ctx, GLuint name, GLenum type);
-
-extern "C" void
-_mesa_reference_shader(struct gl_context *ctx, struct gl_shader **ptr,
- struct gl_shader *sh);
-
-/* Copied from shader_api.c for the stand-alone compiler.
- */
-void
-_mesa_reference_shader(struct gl_context *ctx, struct gl_shader **ptr,
- struct gl_shader *sh)
-{
- *ptr = sh;
-}
-
-struct gl_shader *
-_mesa_new_shader(struct gl_context *ctx, GLuint name, GLenum type)
-{
- struct gl_shader *shader;
-
- (void) ctx;
-
- assert(type == GL_FRAGMENT_SHADER || type == GL_VERTEX_SHADER);
- shader = rzalloc(NULL, struct gl_shader);
- if (shader) {
- shader->Type = type;
- shader->Name = name;
- shader->RefCount = 1;
- }
- return shader;
-}
+#include "standalone_scaffolding.h"
static void
initialize_context(struct gl_context *ctx, gl_api api)
{
- memset(ctx, 0, sizeof(*ctx));
-
- ctx->API = api;
-
- ctx->Extensions.ARB_ES2_compatibility = GL_TRUE;
- ctx->Extensions.ARB_draw_buffers = GL_TRUE;
- ctx->Extensions.ARB_draw_instanced = GL_TRUE;
- ctx->Extensions.ARB_fragment_coord_conventions = GL_TRUE;
- ctx->Extensions.EXT_texture_array = GL_TRUE;
- ctx->Extensions.NV_texture_rectangle = GL_TRUE;
- ctx->Extensions.EXT_texture3D = GL_TRUE;
+ initialize_context_to_defaults(ctx, api);
/* GLSL 1.30 isn't fully supported, but we need to advertise 1.30 so that
* the built-in functions for 1.30 can be built.
*/
ctx->Const.GLSLVersion = 130;
- /* 1.10 minimums. */
- ctx->Const.MaxLights = 8;
ctx->Const.MaxClipPlanes = 8;
- ctx->Const.MaxTextureUnits = 2;
+ ctx->Const.MaxDrawBuffers = 2;
/* More than the 1.10 minimum to appease parser tests taken from
* apps that (hopefully) already checked the number of coords.
*/
ctx->Const.MaxTextureCoordUnits = 4;
- ctx->Const.VertexProgram.MaxAttribs = 16;
- ctx->Const.VertexProgram.MaxUniformComponents = 512;
- ctx->Const.MaxVarying = 8;
- ctx->Const.MaxVertexTextureImageUnits = 0;
- ctx->Const.MaxCombinedTextureImageUnits = 2;
- ctx->Const.MaxTextureImageUnits = 2;
- ctx->Const.FragmentProgram.MaxUniformComponents = 64;
-
- ctx->Const.MaxDrawBuffers = 2;
-
ctx->Driver.NewShader = _mesa_new_shader;
}
diff --git a/src/glsl/standalone_scaffolding.cpp b/src/glsl/standalone_scaffolding.cpp
new file mode 100644
index 0000000..696ea75
--- /dev/null
+++ b/src/glsl/standalone_scaffolding.cpp
@@ -0,0 +1,91 @@
+/*
+ * Copyright © 2011 Intel Corporation
+ *
+ * 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.
+ */
+
+/* This file declares stripped-down versions of functions that
+ * normally exist outside of the glsl folder, so that they can be used
+ * when running the GLSL compiler standalone (for unit testing or
+ * compiling builtins).
+ */
+
+#include "standalone_scaffolding.h"
+
+#include <assert.h>
+#include <string.h>
+#include "ralloc.h"
+
+void
+_mesa_reference_shader(struct gl_context *ctx, struct gl_shader **ptr,
+ struct gl_shader *sh)
+{
+ *ptr = sh;
+}
+
+struct gl_shader *
+_mesa_new_shader(struct gl_context *ctx, GLuint name, GLenum type)
+{
+ struct gl_shader *shader;
+
+ (void) ctx;
+
+ assert(type == GL_FRAGMENT_SHADER || type == GL_VERTEX_SHADER);
+ shader = rzalloc(NULL, struct gl_shader);
+ if (shader) {
+ shader->Type = type;
+ shader->Name = name;
+ shader->RefCount = 1;
+ }
+ return shader;
+}
+
+void initialize_context_to_defaults(struct gl_context *ctx, gl_api api)
+{
+ memset(ctx, 0, sizeof(*ctx));
+
+ ctx->API = api;
+
+ ctx->Extensions.ARB_ES2_compatibility = true;
+ ctx->Extensions.ARB_draw_buffers = true;
+ ctx->Extensions.ARB_draw_instanced = true;
+ ctx->Extensions.ARB_fragment_coord_conventions = true;
+ ctx->Extensions.EXT_texture_array = true;
+ ctx->Extensions.NV_texture_rectangle = true;
+ ctx->Extensions.EXT_texture3D = true;
+
+ ctx->Const.GLSLVersion = 120;
+
+ /* 1.20 minimums. */
+ ctx->Const.MaxLights = 8;
+ ctx->Const.MaxClipPlanes = 6;
+ ctx->Const.MaxTextureUnits = 2;
+ ctx->Const.MaxTextureCoordUnits = 2;
+ ctx->Const.VertexProgram.MaxAttribs = 16;
+
+ ctx->Const.VertexProgram.MaxUniformComponents = 512;
+ ctx->Const.MaxVarying = 8; /* == gl_MaxVaryingFloats / 4 */
+ ctx->Const.MaxVertexTextureImageUnits = 0;
+ ctx->Const.MaxCombinedTextureImageUnits = 2;
+ ctx->Const.MaxTextureImageUnits = 2;
+ ctx->Const.FragmentProgram.MaxUniformComponents = 64;
+
+ ctx->Const.MaxDrawBuffers = 1;
+}
diff --git a/src/glsl/standalone_scaffolding.h b/src/glsl/standalone_scaffolding.h
new file mode 100644
index 0000000..8773320
--- /dev/null
+++ b/src/glsl/standalone_scaffolding.h
@@ -0,0 +1,54 @@
+/*
+ * Copyright © 2011 Intel Corporation
+ *
+ * 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.
+ */
+
+/* This file declares stripped-down versions of functions that
+ * normally exist outside of the glsl folder, so that they can be used
+ * when running the GLSL compiler standalone (for unit testing or
+ * compiling builtins).
+ */
+
+#pragma once
+#ifndef STANDALONE_SCAFFOLDING_H
+#define STANDALONE_SCAFFOLDING_H
+
+#include "main/mtypes.h"
+
+extern "C" void
+_mesa_reference_shader(struct gl_context *ctx, struct gl_shader **ptr,
+ struct gl_shader *sh);
+
+extern "C" struct gl_shader *
+_mesa_new_shader(struct gl_context *ctx, GLuint name, GLenum type);
+
+/**
+ * Initialize the given gl_context structure to a reasonable set of
+ * defaults representing the minimum capabilities required by the
+ * OpenGL spec.
+ *
+ * This is used when compiling builtin functions and in testing, when
+ * we don't have a connection to an actual driver.
+ */
+void initialize_context_to_defaults(struct gl_context *ctx, gl_api api);
+
+
+#endif /* STANDALONE_SCAFFOLDING_H */
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