[Mesa-dev] [PATCH 06/13] mesa: allow buffers mapped with the persistent flag to be used by the GPU
Marek Olšák
maraeo at gmail.com
Wed Jan 29 17:20:48 PST 2014
From: Marek Olšák <marek.olsak at amd.com>
---
src/mesa/main/api_validate.c | 2 +-
src/mesa/main/bufferobj.c | 12 ++++++++----
src/mesa/main/bufferobj.h | 8 ++++++++
src/mesa/main/drawpix.c | 4 ++--
src/mesa/main/pbo.c | 4 ++--
src/mesa/main/readpix.c | 2 +-
src/mesa/main/texgetimage.c | 4 ++--
src/mesa/vbo/vbo_exec_array.c | 4 ++--
8 files changed, 26 insertions(+), 14 deletions(-)
diff --git a/src/mesa/main/api_validate.c b/src/mesa/main/api_validate.c
index 6945584..50fd757 100644
--- a/src/mesa/main/api_validate.c
+++ b/src/mesa/main/api_validate.c
@@ -865,7 +865,7 @@ valid_draw_indirect(struct gl_context *ctx,
return GL_FALSE;
}
- if (_mesa_bufferobj_mapped(ctx->DrawIndirectBuffer)) {
+ if (_mesa_check_disallowed_mapping(ctx->DrawIndirectBuffer)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"%s(DRAW_INDIRECT_BUFFER is mapped)", name);
return GL_FALSE;
diff --git a/src/mesa/main/bufferobj.c b/src/mesa/main/bufferobj.c
index ca0b5dd..2a642fe 100644
--- a/src/mesa/main/bufferobj.c
+++ b/src/mesa/main/bufferobj.c
@@ -269,6 +269,9 @@ buffer_object_subdata_range_good(struct gl_context * ctx, GLenum target,
return NULL;
}
+ if (bufObj->AccessFlags & GL_MAP_PERSISTENT_BIT)
+ return bufObj;
+
if (mappedRange) {
if (bufferobj_range_mapped(bufObj, offset, size)) {
_mesa_error(ctx, GL_INVALID_OPERATION, "%s", caller);
@@ -1452,7 +1455,7 @@ _mesa_ClearBufferData(GLenum target, GLenum internalformat, GLenum format,
return;
}
- if (_mesa_bufferobj_mapped(bufObj)) {
+ if (_mesa_check_disallowed_mapping(bufObj)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glClearBufferData(buffer currently mapped)");
return;
@@ -1861,13 +1864,13 @@ _mesa_CopyBufferSubData(GLenum readTarget, GLenum writeTarget,
if (!dst)
return;
- if (_mesa_bufferobj_mapped(src)) {
+ if (_mesa_check_disallowed_mapping(src)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glCopyBufferSubData(readBuffer is mapped)");
return;
}
- if (_mesa_bufferobj_mapped(dst)) {
+ if (_mesa_check_disallowed_mapping(dst)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glCopyBufferSubData(writeBuffer is mapped)");
return;
@@ -2793,7 +2796,8 @@ _mesa_InvalidateBufferSubData(GLuint buffer, GLintptr offset,
* mapped by MapBuffer, or if the invalidate range intersects the range
* currently mapped by MapBufferRange."
*/
- if (bufferobj_range_mapped(bufObj, offset, length)) {
+ if (!(bufObj->AccessFlags & GL_MAP_PERSISTENT_BIT) &&
+ bufferobj_range_mapped(bufObj, offset, length)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glInvalidateBufferSubData(intersection with mapped "
"range)");
diff --git a/src/mesa/main/bufferobj.h b/src/mesa/main/bufferobj.h
index 174fd60..43795a9 100644
--- a/src/mesa/main/bufferobj.h
+++ b/src/mesa/main/bufferobj.h
@@ -44,6 +44,14 @@ _mesa_bufferobj_mapped(const struct gl_buffer_object *obj)
return obj->Pointer != NULL;
}
+/** Cannot we use this buffer while mapped? */
+static inline GLboolean
+_mesa_check_disallowed_mapping(const struct gl_buffer_object *obj)
+{
+ return _mesa_bufferobj_mapped(obj) &&
+ !(obj->AccessFlags & GL_MAP_PERSISTENT_BIT);
+}
+
/**
* Is the given buffer object a user-created buffer object?
* Mesa uses default buffer objects in several places. Default buffers
diff --git a/src/mesa/main/drawpix.c b/src/mesa/main/drawpix.c
index 096615c..63e5870 100644
--- a/src/mesa/main/drawpix.c
+++ b/src/mesa/main/drawpix.c
@@ -151,7 +151,7 @@ _mesa_DrawPixels( GLsizei width, GLsizei height,
"glDrawPixels(invalid PBO access)");
goto end;
}
- if (_mesa_bufferobj_mapped(ctx->Unpack.BufferObj)) {
+ if (_mesa_check_disallowed_mapping(ctx->Unpack.BufferObj)) {
/* buffer is mapped - that's an error */
_mesa_error(ctx, GL_INVALID_OPERATION,
"glDrawPixels(PBO is mapped)");
@@ -335,7 +335,7 @@ _mesa_Bitmap( GLsizei width, GLsizei height,
"glBitmap(invalid PBO access)");
return;
}
- if (_mesa_bufferobj_mapped(ctx->Unpack.BufferObj)) {
+ if (_mesa_check_disallowed_mapping(ctx->Unpack.BufferObj)) {
/* buffer is mapped - that's an error */
_mesa_error(ctx, GL_INVALID_OPERATION,
"glBitmap(PBO is mapped)");
diff --git a/src/mesa/main/pbo.c b/src/mesa/main/pbo.c
index 400cec3..4a39404 100644
--- a/src/mesa/main/pbo.c
+++ b/src/mesa/main/pbo.c
@@ -201,7 +201,7 @@ _mesa_map_validate_pbo_source(struct gl_context *ctx,
return ptr;
}
- if (_mesa_bufferobj_mapped(unpack->BufferObj)) {
+ if (_mesa_check_disallowed_mapping(unpack->BufferObj)) {
/* buffer is already mapped - that's an error */
_mesa_error(ctx, GL_INVALID_OPERATION, "%s(PBO is mapped)", where);
return NULL;
@@ -297,7 +297,7 @@ _mesa_map_validate_pbo_dest(struct gl_context *ctx,
return ptr;
}
- if (_mesa_bufferobj_mapped(unpack->BufferObj)) {
+ if (_mesa_check_disallowed_mapping(unpack->BufferObj)) {
/* buffer is already mapped - that's an error */
_mesa_error(ctx, GL_INVALID_OPERATION, "%s(PBO is mapped)", where);
return NULL;
diff --git a/src/mesa/main/readpix.c b/src/mesa/main/readpix.c
index e163468..9baea31 100644
--- a/src/mesa/main/readpix.c
+++ b/src/mesa/main/readpix.c
@@ -1033,7 +1033,7 @@ _mesa_ReadnPixelsARB( GLint x, GLint y, GLsizei width, GLsizei height,
}
if (_mesa_is_bufferobj(ctx->Pack.BufferObj) &&
- _mesa_bufferobj_mapped(ctx->Pack.BufferObj)) {
+ _mesa_check_disallowed_mapping(ctx->Pack.BufferObj)) {
/* buffer is mapped - that's an error */
_mesa_error(ctx, GL_INVALID_OPERATION, "glReadPixels(PBO is mapped)");
return;
diff --git a/src/mesa/main/texgetimage.c b/src/mesa/main/texgetimage.c
index 133fa53..b21aa2c 100644
--- a/src/mesa/main/texgetimage.c
+++ b/src/mesa/main/texgetimage.c
@@ -861,7 +861,7 @@ getteximage_error_check(struct gl_context *ctx, GLenum target, GLint level,
if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
/* PBO should not be mapped */
- if (_mesa_bufferobj_mapped(ctx->Pack.BufferObj)) {
+ if (_mesa_check_disallowed_mapping(ctx->Pack.BufferObj)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glGetTexImage(PBO is mapped)");
return GL_TRUE;
@@ -1004,7 +1004,7 @@ getcompressedteximage_error_check(struct gl_context *ctx, GLenum target,
}
/* make sure PBO is not mapped */
- if (_mesa_bufferobj_mapped(ctx->Pack.BufferObj)) {
+ if (_mesa_check_disallowed_mapping(ctx->Pack.BufferObj)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glGetCompressedTexImage(PBO is mapped)");
return GL_TRUE;
diff --git a/src/mesa/vbo/vbo_exec_array.c b/src/mesa/vbo/vbo_exec_array.c
index 16aee3b..67fe0d4 100644
--- a/src/mesa/vbo/vbo_exec_array.c
+++ b/src/mesa/vbo/vbo_exec_array.c
@@ -53,7 +53,7 @@ check_buffers_are_unmapped(const struct gl_client_array **inputs)
for (i = 0; i < VERT_ATTRIB_MAX; i++) {
if (inputs[i]) {
struct gl_buffer_object *obj = inputs[i]->BufferObj;
- assert(!_mesa_bufferobj_mapped(obj));
+ assert(!_mesa_check_disallowed_mapping(obj));
(void) obj;
}
}
@@ -73,7 +73,7 @@ vbo_check_buffers_are_unmapped(struct gl_context *ctx)
/* check the current vertex arrays */
check_buffers_are_unmapped(exec->array.inputs);
/* check the current glBegin/glVertex/glEnd-style VBO */
- assert(!_mesa_bufferobj_mapped(exec->vtx.bufferobj));
+ assert(!_mesa_check_disallowed_mapping(exec->vtx.bufferobj));
}
--
1.8.3.2
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