+ GLintptr offset, GLsizeiptr size,
+ const GLvoid *clearValue,
+ GLsizeiptr clearValueSize,
+ struct gl_buffer_object *bufObj)
{
GLsizeiptr i;
GLubyte *dest;
@@ -1113,7 +1113,7 @@ _mesa_init_buffer_object_functions(struct
dd_function_table *driver)
driver->UnmapBuffer = _mesa_buffer_unmap;
/* GL_ARB_clear_buffer_object */
- driver->ClearBufferSubData = _mesa_buffer_clear_subdata;
+ driver->ClearBufferSubData = _mesa_ClearBufferSubData_sw;
/* GL_ARB_map_buffer_range */
driver->MapBufferRange = _mesa_buffer_map_range;
@@ -1671,57 +1671,77 @@ _mesa_GetBufferSubData(GLenum target, GLintptr offset,
ctx->Driver.GetBufferSubData( ctx, offset, size, data, bufObj );
}
-
-void GLAPIENTRY
-_mesa_ClearBufferData(GLenum target, GLenum internalformat, GLenum format,
- GLenum type, const GLvoid* data)
+/**
+ * \param subdata true if caller is *SubData, false if *Data
+ */
+void
+_mesa_clear_buffer_sub_data(struct gl_context *ctx,
+ struct gl_buffer_object *bufObj,
+ GLenum internalformat,
+ GLintptr offset, GLsizeiptr size,
+ GLenum format, GLenum type,
+ const GLvoid *data,
+ const char *func, bool subdata)
{
- GET_CURRENT_CONTEXT(ctx);
- struct gl_buffer_object* bufObj;
mesa_format mesaFormat;
GLubyte clearValue[MAX_PIXEL_BYTES];
GLsizeiptr clearValueSize;
- bufObj = get_buffer(ctx, "glClearBufferData", target, GL_INVALID_VALUE);
- if (!bufObj) {
- return;
- }
-
- if (_mesa_check_disallowed_mapping(bufObj)) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glClearBufferData(buffer currently mapped)");
+ /* This checks for disallowed mappings. */
+ if (!buffer_object_subdata_range_good(ctx, bufObj, offset, size,
+ subdata, func)) {
return;
}
mesaFormat = validate_clear_buffer_format(ctx, internalformat,
- format, type,
- "glClearBufferData");
+ format, type, func);
+
if (mesaFormat == MESA_FORMAT_NONE) {
return;
}
clearValueSize = _mesa_get_format_bytes(mesaFormat);
- if (bufObj->Size % clearValueSize != 0) {
+ if (offset % clearValueSize != 0 || size % clearValueSize != 0) {
_mesa_error(ctx, GL_INVALID_VALUE,
- "glClearBufferData(size is not a multiple of "
- "internalformat size)");
+ "%s(offset or size is not a multiple of "
+ "internalformat size)", func);
return;
}
if (data == NULL) {
/* clear to zeros, per the spec */
- ctx->Driver.ClearBufferSubData(ctx, 0, bufObj->Size,
- NULL, clearValueSize, bufObj);
+ if (size > 0) {
+ ctx->Driver.ClearBufferSubData(ctx, offset, size,
+ NULL, clearValueSize, bufObj);
+ }
return;
}
if (!convert_clear_buffer_data(ctx, mesaFormat, clearValue,
- format, type, data, "glClearBufferData")) {
+ format, type, data, func)) {
return;
}
- ctx->Driver.ClearBufferSubData(ctx, 0, bufObj->Size,
- clearValue, clearValueSize, bufObj);
+ if (size > 0) {
+ ctx->Driver.ClearBufferSubData(ctx, offset, size,
+ clearValue, clearValueSize, bufObj);
+ }
+}
+
+void GLAPIENTRY
+_mesa_ClearBufferData(GLenum target, GLenum internalformat, GLenum format,
+ GLenum type, const GLvoid *data)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ struct gl_buffer_object *bufObj;
+
+ bufObj = get_buffer(ctx, "glClearBufferData", target, GL_INVALID_VALUE);
+ if (!bufObj)
+ return;
+
+ _mesa_clear_buffer_sub_data(ctx, bufObj, internalformat, 0, bufObj->Size,
+ format, type, data,
+ "glClearBufferData", false);
}
@@ -1733,53 +1753,14 @@ _mesa_ClearBufferSubData(GLenum target, GLenum internalformat,
{
GET_CURRENT_CONTEXT(ctx);
struct gl_buffer_object* bufObj;
- mesa_format mesaFormat;
- GLubyte clearValue[MAX_PIXEL_BYTES];
- GLsizeiptr clearValueSize;
bufObj = get_buffer(ctx, "glClearBufferSubData", target, GL_INVALID_VALUE);
if (!bufObj)
return;
- if (!buffer_object_subdata_range_good(ctx, bufObj, offset, size,
- true, "glClearBufferSubData")) {
- return;
- }
-
- mesaFormat = validate_clear_buffer_format(ctx, internalformat,
- format, type,
- "glClearBufferSubData");
- if (mesaFormat == MESA_FORMAT_NONE) {
- return;
- }
-
- clearValueSize = _mesa_get_format_bytes(mesaFormat);
- if (offset % clearValueSize != 0 || size % clearValueSize != 0) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glClearBufferSubData(offset or size is not a multiple of "
- "internalformat size)");
- return;
- }
-
- if (data == NULL) {
- /* clear to zeros, per the spec */
- if (size > 0) {
- ctx->Driver.ClearBufferSubData(ctx, offset, size,
- NULL, clearValueSize, bufObj);
- }
- return;
- }
-
- if (!convert_clear_buffer_data(ctx, mesaFormat, clearValue,
- format, type, data,
- "glClearBufferSubData")) {
- return;
- }
-
- if (size > 0) {
- ctx->Driver.ClearBufferSubData(ctx, offset, size,
- clearValue, clearValueSize, bufObj);
- }
+ _mesa_clear_buffer_sub_data(ctx, bufObj, internalformat, offset, size,
+ format, type, data,
+ "glClearBufferSubData", true);
}
diff --git a/src/mesa/main/bufferobj.h b/src/mesa/main/bufferobj.h
index 7db5c98..5911270 100644
--- a/src/mesa/main/bufferobj.h
+++ b/src/mesa/main/bufferobj.h
@@ -156,11 +156,20 @@ _mesa_copy_buffer_sub_data(struct gl_context *ctx,
GLsizeiptr size, const char *func);
extern void
-_mesa_buffer_clear_subdata(struct gl_context *ctx,
- GLintptr offset, GLsizeiptr size,
- const GLvoid *clearValue,
- GLsizeiptr clearValueSize,
- struct gl_buffer_object *bufObj);
+_mesa_ClearBufferSubData_sw(struct gl_context *ctx,
+ GLintptr offset, GLsizeiptr size,
+ const GLvoid *clearValue,
+ GLsizeiptr clearValueSize,
+ struct gl_buffer_object *bufObj);
+
+extern void
+_mesa_clear_buffer_sub_data(struct gl_context *ctx,
+ struct gl_buffer_object *bufObj,
+ GLenum internalformat,
+ GLintptr offset, GLsizeiptr size,
+ GLenum format, GLenum type,
+ const GLvoid *data,
+ const char *func, bool subdata);
/*
* API functions
diff --git a/src/mesa/state_tracker/st_cb_bufferobjects.c
b/src/mesa/state_tracker/st_cb_bufferobjects.c
index 90f786c..b7096f7 100644
--- a/src/mesa/state_tracker/st_cb_bufferobjects.c
+++ b/src/mesa/state_tracker/st_cb_bufferobjects.c
@@ -477,8 +477,8 @@ st_clear_buffer_subdata(struct gl_context *ctx,
static const char zeros[16] = {0};
if (!pipe->clear_buffer) {
- _mesa_buffer_clear_subdata(ctx, offset, size,
- clearValue, clearValueSize, bufObj);
+ _mesa_ClearBufferSubData_sw(ctx, offset, size,
+ clearValue, clearValueSize, bufObj);
return;
}
