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-rw-r--r--src/mesa/drivers/common/driverfuncs.c5
-rw-r--r--src/mesa/main/api_exec.c6
-rw-r--r--src/mesa/main/bufferobj.c235
-rw-r--r--src/mesa/main/bufferobj.h17
-rw-r--r--src/mesa/main/dlist.c6
-rw-r--r--src/mesa/main/extensions.c5
-rw-r--r--src/mesa/main/mfeatures.h1
-rw-r--r--src/mesa/main/mtypes.h3
8 files changed, 265 insertions, 13 deletions
diff --git a/src/mesa/drivers/common/driverfuncs.c b/src/mesa/drivers/common/driverfuncs.c
index 56abdbdfcb..624ace058a 100644
--- a/src/mesa/drivers/common/driverfuncs.c
+++ b/src/mesa/drivers/common/driverfuncs.c
@@ -213,6 +213,11 @@ _mesa_init_driver_functions(struct dd_function_table *driver)
driver->UnmapBuffer = _mesa_buffer_unmap;
#endif
+#if FEATURE_ARB_map_buffer_range
+ driver->MapBufferRange = _mesa_buffer_map_range;
+ driver->FlushMappedBufferRange = _mesa_buffer_flush_mapped_range;
+#endif
+
#if FEATURE_EXT_framebuffer_object
driver->NewFramebuffer = _mesa_new_framebuffer;
driver->NewRenderbuffer = _mesa_new_soft_renderbuffer;
diff --git a/src/mesa/main/api_exec.c b/src/mesa/main/api_exec.c
index c714d177a2..2cc9a4323b 100644
--- a/src/mesa/main/api_exec.c
+++ b/src/mesa/main/api_exec.c
@@ -895,7 +895,11 @@ _mesa_init_exec_table(struct _glapi_table *exec)
SET_RenderbufferStorageMultisample(exec, _mesa_RenderbufferStorageMultisample);
#endif
+#if FEATURE_ARB_map_buffer_range
+ SET_MapBufferRange(exec, _mesa_MapBufferRange);
+ SET_FlushMappedBufferRange(exec, _mesa_FlushMappedBufferRange);
+#endif
+
/* GL_ARB_copy_buffer */
SET_CopyBufferSubData(exec, _mesa_CopyBufferSubData);
}
-
diff --git a/src/mesa/main/bufferobj.c b/src/mesa/main/bufferobj.c
index 3e011ef5b2..6b22881072 100644
--- a/src/mesa/main/bufferobj.c
+++ b/src/mesa/main/bufferobj.c
@@ -40,9 +40,9 @@
#ifdef FEATURE_OES_mapbuffer
-#define DEFAULT_ACCESS GL_WRITE_ONLY;
+#define DEFAULT_ACCESS GL_MAP_WRITE_BIT
#else
-#define DEFAULT_ACCESS GL_READ_WRITE;
+#define DEFAULT_ACCESS (GL_MAP_READ_BIT | GL_MAP_WRITE_BIT)
#endif
@@ -96,6 +96,24 @@ get_buffer(GLcontext *ctx, GLenum target)
/**
+ * Convert a GLbitfield describing the mapped buffer access flags
+ * into one of GL_READ_WRITE, GL_READ_ONLY, or GL_WRITE_ONLY.
+ */
+static GLenum
+simplified_access_mode(GLbitfield access)
+{
+ const GLbitfield rwFlags = GL_MAP_READ_BIT | GL_MAP_WRITE_BIT;
+ if ((access & rwFlags) == rwFlags)
+ return GL_READ_WRITE;
+ if ((access & GL_MAP_READ_BIT) == GL_MAP_READ_BIT)
+ return GL_READ_ONLY;
+ if ((access & GL_MAP_WRITE_BIT) == GL_MAP_WRITE_BIT)
+ return GL_WRITE_ONLY;
+ return GL_READ_WRITE; /* this should never happen, but no big deal */
+}
+
+
+/**
* Tests the subdata range parameters and sets the GL error code for
* \c glBufferSubDataARB and \c glGetBufferSubDataARB.
*
@@ -271,7 +289,7 @@ _mesa_initialize_buffer_object( struct gl_buffer_object *obj,
obj->RefCount = 1;
obj->Name = name;
obj->Usage = GL_STATIC_DRAW_ARB;
- obj->Access = DEFAULT_ACCESS;
+ obj->AccessFlags = DEFAULT_ACCESS;
}
@@ -410,6 +428,43 @@ _mesa_buffer_map( GLcontext *ctx, GLenum target, GLenum access,
/**
+ * Default fallback for \c dd_function_table::MapBufferRange().
+ * Called via glMapBufferRange().
+ */
+void *
+_mesa_buffer_map_range( GLcontext *ctx, GLenum target, GLintptr offset,
+ GLsizeiptr length, GLbitfield access,
+ struct gl_buffer_object *bufObj )
+{
+ (void) ctx;
+ (void) target;
+ (void) access;
+ (void) length;
+ assert(!bufObj->Pointer);
+ /* Just return a direct pointer to the data */
+ return bufObj->Data + offset;
+}
+
+
+/**
+ * Default fallback for \c dd_function_table::FlushMappedBufferRange().
+ * Called via glFlushMappedBufferRange().
+ */
+void
+_mesa_buffer_flush_mapped_range( GLcontext *ctx, GLenum target,
+ GLintptr offset, GLsizeiptr length,
+ struct gl_buffer_object *obj )
+{
+ (void) ctx;
+ (void) target;
+ (void) offset;
+ (void) length;
+ (void) obj;
+ /* no-op */
+}
+
+
+/**
* Default callback for \c dd_function_table::MapBuffer().
*
* The input parameters will have been already tested for errors.
@@ -845,7 +900,7 @@ _mesa_DeleteBuffersARB(GLsizei n, const GLuint *ids)
if (bufObj->Pointer) {
/* if mapped, unmap it now */
ctx->Driver.UnmapBuffer(ctx, 0, bufObj);
- bufObj->Access = DEFAULT_ACCESS;
+ bufObj->AccessFlags = DEFAULT_ACCESS;
bufObj->Pointer = NULL;
}
@@ -1004,7 +1059,7 @@ _mesa_BufferDataARB(GLenum target, GLsizeiptrARB size,
if (bufObj->Pointer) {
/* Unmap the existing buffer. We'll replace it now. Not an error. */
ctx->Driver.UnmapBuffer(ctx, target, bufObj);
- bufObj->Access = DEFAULT_ACCESS;
+ bufObj->AccessFlags = DEFAULT_ACCESS;
bufObj->Pointer = NULL;
}
@@ -1071,13 +1126,18 @@ _mesa_MapBufferARB(GLenum target, GLenum access)
{
GET_CURRENT_CONTEXT(ctx);
struct gl_buffer_object * bufObj;
+ GLbitfield accessFlags;
ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, NULL);
switch (access) {
case GL_READ_ONLY_ARB:
+ accessFlags = GL_MAP_READ_BIT;
+ break;
case GL_WRITE_ONLY_ARB:
+ accessFlags = GL_MAP_WRITE_BIT;
+ break;
case GL_READ_WRITE_ARB:
- /* OK */
+ accessFlags = GL_MAP_READ_BIT | GL_MAP_WRITE_BIT;
break;
default:
_mesa_error(ctx, GL_INVALID_ENUM, "glMapBufferARB(access)");
@@ -1104,7 +1164,10 @@ _mesa_MapBufferARB(GLenum target, GLenum access)
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glMapBufferARB(access)");
}
- bufObj->Access = access;
+ bufObj->AccessFlags = accessFlags;
+ bufObj->Offset = 0;
+ bufObj->Length = bufObj->Size;
+
if (access == GL_WRITE_ONLY_ARB || access == GL_READ_WRITE_ARB)
bufObj->Written = GL_TRUE;
@@ -1146,7 +1209,7 @@ _mesa_UnmapBufferARB(GLenum target)
}
#ifdef VBO_DEBUG
- if (bufObj->Access == GL_WRITE_ONLY_ARB) {
+ if (bufObj->AccessFlags & GL_MAP_WRITE_BIT) {
GLuint i, unchanged = 0;
GLubyte *b = (GLubyte *) bufObj->Pointer;
GLint pos = -1;
@@ -1166,8 +1229,10 @@ _mesa_UnmapBufferARB(GLenum target)
#endif
status = ctx->Driver.UnmapBuffer( ctx, target, bufObj );
- bufObj->Access = DEFAULT_ACCESS;
+ bufObj->AccessFlags = DEFAULT_ACCESS;
bufObj->Pointer = NULL;
+ bufObj->Offset = 0;
+ bufObj->Length = 0;
return status;
}
@@ -1198,7 +1263,7 @@ _mesa_GetBufferParameterivARB(GLenum target, GLenum pname, GLint *params)
*params = bufObj->Usage;
break;
case GL_BUFFER_ACCESS_ARB:
- *params = bufObj->Access;
+ *params = simplified_access_mode(bufObj->AccessFlags);
break;
case GL_BUFFER_MAPPED_ARB:
*params = (bufObj->Pointer != NULL);
@@ -1315,3 +1380,153 @@ _mesa_CopyBufferSubData(GLenum readTarget, GLenum writeTarget,
ctx->Driver.CopyBufferSubData(ctx, src, dst, readOffset, writeOffset, size);
}
+
+/**
+ * See GL_ARB_map_buffer_range spec
+ */
+void * GLAPIENTRY
+_mesa_MapBufferRange(GLenum target, GLintptr offset, GLsizeiptr length,
+ GLbitfield access)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ struct gl_buffer_object *bufObj;
+ ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, NULL);
+
+ if (!ctx->Extensions.ARB_map_buffer_range) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glMapBufferRange(extension not supported)");
+ return NULL;
+ }
+
+ if (offset < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glMapBufferRange(offset = %ld)", offset);
+ return NULL;
+ }
+
+ if (length < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glMapBufferRange(length = %ld)", length);
+ return NULL;
+ }
+
+ if ((access & (GL_MAP_READ_BIT | GL_MAP_WRITE_BIT)) == 0) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glMapBufferRange(access indicates neither read or write)");
+ return NULL;
+ }
+
+ if (access & GL_MAP_READ_BIT) {
+ if ((access & GL_MAP_INVALIDATE_RANGE_BIT) ||
+ (access & GL_MAP_INVALIDATE_BUFFER_BIT) ||
+ (access & GL_MAP_UNSYNCHRONIZED_BIT)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glMapBufferRange(invalid access flags)");
+ return NULL;
+ }
+ }
+
+ if ((access & GL_MAP_FLUSH_EXPLICIT_BIT) &&
+ ((access & GL_MAP_WRITE_BIT) == 0)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glMapBufferRange(invalid access flags)");
+ return NULL;
+ }
+
+ bufObj = get_buffer(ctx, target);
+ if (!bufObj || bufObj->Name == 0) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glMapBufferRange(target = 0x%x)", target);
+ return NULL;
+ }
+
+ if (offset + length > bufObj->Size) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glMapBufferRange(offset + length > size)");
+ return NULL;
+ }
+
+ if (bufObj->Pointer) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glMapBufferRange(buffer already mapped)");
+ return NULL;
+ }
+
+ ASSERT(ctx->Driver.MapBufferRange);
+ bufObj->Pointer = ctx->Driver.MapBufferRange(ctx, target, offset, length,
+ access, bufObj);
+
+ bufObj->Offset = offset;
+ bufObj->Length = length;
+ bufObj->AccessFlags = access;
+
+ return bufObj->Pointer;
+}
+
+
+/**
+ * See GL_ARB_map_buffer_range spec
+ */
+void GLAPIENTRY
+_mesa_FlushMappedBufferRange(GLenum target, GLintptr offset, GLsizeiptr length)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ struct gl_buffer_object *bufObj;
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (!ctx->Extensions.ARB_map_buffer_range) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glMapBufferRange(extension not supported)");
+ return;
+ }
+
+ if (offset < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glMapBufferRange(offset = %ld)", offset);
+ return;
+ }
+
+ if (length < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glMapBufferRange(length = %ld)", length);
+ return;
+ }
+
+ bufObj = get_buffer(ctx, target);
+ if (!bufObj) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glMapBufferRange(target = 0x%x)", target);
+ return;
+ }
+
+ if (bufObj->Name == 0) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glMapBufferRange(current buffer is 0)");
+ return;
+ }
+
+ if (!bufObj->Pointer) {
+ /* buffer is not mapped */
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glMapBufferRange(buffer is not mapped)");
+ return;
+ }
+
+ if ((bufObj->AccessFlags & GL_MAP_FLUSH_EXPLICIT_BIT) == 0) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glMapBufferRange(GL_MAP_FLUSH_EXPLICIT_BIT not set)");
+ return;
+ }
+
+ if (offset + length > bufObj->Length) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glMapBufferRange(offset %ld + length %ld > mapped length %ld)",
+ offset, length, bufObj->Length);
+ return;
+ }
+
+ ASSERT(bufObj->AccessFlags & GL_MAP_WRITE_BIT);
+
+ if (ctx->Driver.FlushMappedBufferRange)
+ ctx->Driver.FlushMappedBufferRange(ctx, target, offset, length, bufObj);
+}
diff --git a/src/mesa/main/bufferobj.h b/src/mesa/main/bufferobj.h
index 79c027aa4d..a8e2dcef93 100644
--- a/src/mesa/main/bufferobj.h
+++ b/src/mesa/main/bufferobj.h
@@ -79,6 +79,16 @@ extern void *
_mesa_buffer_map( GLcontext *ctx, GLenum target, GLenum access,
struct gl_buffer_object * bufObj );
+extern void *
+_mesa_buffer_map_range( GLcontext *ctx, GLenum target, GLintptr offset,
+ GLsizeiptr length, GLbitfield access,
+ struct gl_buffer_object *bufObj );
+
+extern void
+_mesa_buffer_flush_mapped_range( GLcontext *ctx, GLenum target,
+ GLintptr offset, GLsizeiptr length,
+ struct gl_buffer_object *obj );
+
extern GLboolean
_mesa_buffer_unmap( GLcontext *ctx, GLenum target,
struct gl_buffer_object * bufObj );
@@ -167,4 +177,11 @@ _mesa_CopyBufferSubData(GLenum readTarget, GLenum writeTarget,
GLintptr readOffset, GLintptr writeOffset,
GLsizeiptr size);
+extern void * GLAPIENTRY
+_mesa_MapBufferRange(GLenum target, GLintptr offset, GLsizeiptr length,
+ GLbitfield access);
+
+extern void GLAPIENTRY
+_mesa_FlushMappedBufferRange(GLenum target, GLintptr offset, GLsizeiptr length);
+
#endif
diff --git a/src/mesa/main/dlist.c b/src/mesa/main/dlist.c
index d3c1717a50..a9c2c306ec 100644
--- a/src/mesa/main/dlist.c
+++ b/src/mesa/main/dlist.c
@@ -8239,6 +8239,12 @@ _mesa_init_dlist_table(struct _glapi_table *table)
SET_ProgramLocalParameters4fvEXT(table, save_ProgramLocalParameters4fvEXT);
#endif
+ /* ARB 50. GL_ARB_map_buffer_range */
+#if FEATURE_ARB_map_buffer_range
+ SET_MapBufferRange(table, _mesa_MapBufferRange); /* no dlist save */
+ SET_FlushMappedBufferRange(table, _mesa_FlushMappedBufferRange); /* no dl */
+#endif
+
/* ARB 59. GL_ARB_copy_buffer */
SET_CopyBufferSubData(table, _mesa_CopyBufferSubData); /* no dlist save */
}
diff --git a/src/mesa/main/extensions.c b/src/mesa/main/extensions.c
index 490110a6d2..0d708fc246 100644
--- a/src/mesa/main/extensions.c
+++ b/src/mesa/main/extensions.c
@@ -1,8 +1,9 @@
/*
* Mesa 3-D graphics library
- * Version: 7.3
+ * Version: 7.6
*
* Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
+ * 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"),
@@ -53,6 +54,7 @@ static const struct {
{ OFF, "GL_ARB_framebuffer_object", F(ARB_framebuffer_object) },
{ OFF, "GL_ARB_half_float_pixel", F(ARB_half_float_pixel) },
{ OFF, "GL_ARB_imaging", F(ARB_imaging) },
+ { OFF, "GL_ARB_map_buffer_range", F(ARB_map_buffer_range) },
{ ON, "GL_ARB_multisample", F(ARB_multisample) },
{ OFF, "GL_ARB_multitexture", F(ARB_multitexture) },
{ OFF, "GL_ARB_occlusion_query", F(ARB_occlusion_query) },
@@ -199,6 +201,7 @@ _mesa_enable_sw_extensions(GLcontext *ctx)
#endif
ctx->Extensions.ARB_half_float_pixel = GL_TRUE;
ctx->Extensions.ARB_imaging = GL_TRUE;
+ ctx->Extensions.ARB_map_buffer_range = GL_TRUE;
ctx->Extensions.ARB_multitexture = GL_TRUE;
#if FEATURE_ARB_occlusion_query
ctx->Extensions.ARB_occlusion_query = GL_TRUE;
diff --git a/src/mesa/main/mfeatures.h b/src/mesa/main/mfeatures.h
index 62c3ead3e1..ef973314e3 100644
--- a/src/mesa/main/mfeatures.h
+++ b/src/mesa/main/mfeatures.h
@@ -61,6 +61,7 @@
#define FEATURE_ARB_occlusion_query _HAVE_FULL_GL
#define FEATURE_ARB_fragment_program _HAVE_FULL_GL
#define FEATURE_ARB_framebuffer_object _HAVE_FULL_GL
+#define FEATURE_ARB_map_buffer_range _HAVE_FULL_GL
#define FEATURE_ARB_pixel_buffer_object _HAVE_FULL_GL
#define FEATURE_ARB_vertex_buffer_object _HAVE_FULL_GL
#define FEATURE_ARB_vertex_program _HAVE_FULL_GL
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 46020eb210..71a85a9db8 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -1503,7 +1503,7 @@ struct gl_buffer_object
GLubyte *Data; /**< Location of storage either in RAM or VRAM. */
/** Fields describing a mapped buffer */
/*@{*/
- GLenum Access; /**< GL_READ_ONLY_ARB, GL_WRITE_ONLY_ARB, etc. */
+ GLbitfield AccessFlags; /**< Mask of GL_MAP_x_BIT flags */
GLvoid *Pointer; /**< User-space address of mapping */
GLintptr Offset; /**< Mapped offset */
GLsizeiptr Length; /**< Mapped length */
@@ -2443,6 +2443,7 @@ struct gl_extensions
GLboolean ARB_framebuffer_object;
GLboolean ARB_half_float_pixel;
GLboolean ARB_imaging;
+ GLboolean ARB_map_buffer_range;
GLboolean ARB_multisample;
GLboolean ARB_multitexture;
GLboolean ARB_occlusion_query;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-30 21:59:44 +0000