#include "fbobject.h"
#include "mtypes.h"
#include "texobj.h"
+#include "teximage.h"
+#include "glformats.h"
+#include "texstore.h"
#include "transformfeedback.h"
#include "dispatch.h"
return &ctx->CopyReadBuffer;
case GL_COPY_WRITE_BUFFER:
return &ctx->CopyWriteBuffer;
+ case GL_DRAW_INDIRECT_BUFFER:
+ if (ctx->API == API_OPENGL_CORE &&
+ ctx->Extensions.ARB_draw_indirect) {
+ return &ctx->DrawIndirectBuffer;
+ }
+ break;
case GL_TRANSFORM_FEEDBACK_BUFFER:
if (ctx->Extensions.EXT_transform_feedback) {
return &ctx->TransformFeedback.CurrentBuffer;
* Get the buffer object bound to the specified target in a GL context.
* \param ctx the GL context
* \param target the buffer object target to be retrieved.
+ * \param error the GL error to record if target is illegal.
* \return pointer to the buffer object bound to \c target in the
* specified context or \c NULL if \c target is invalid.
*/
static inline struct gl_buffer_object *
-get_buffer(struct gl_context *ctx, const char *func, GLenum target)
+get_buffer(struct gl_context *ctx, const char *func, GLenum target,
+ GLenum error)
{
struct gl_buffer_object **bufObj = get_buffer_target(ctx, target);
}
if (!_mesa_is_bufferobj(*bufObj)) {
- _mesa_error(ctx, GL_INVALID_OPERATION, "%s(buffer 0)", func);
+ _mesa_error(ctx, error, "%s(no buffer bound)", func);
return NULL;
}
}
+/**
+ * Test if the buffer is mapped, and if so, if the mapped range overlaps the
+ * given range.
+ * The regions do not overlap if and only if the end of the given
+ * region is before the mapped region or the start of the given region
+ * is after the mapped region.
+ *
+ * \param obj Buffer object target on which to operate.
+ * \param offset Offset of the first byte of the subdata range.
+ * \param size Size, in bytes, of the subdata range.
+ * \return true if ranges overlap, false otherwise
+ *
+ */
+static bool
+bufferobj_range_mapped(const struct gl_buffer_object *obj,
+ GLintptr offset, GLsizeiptr size)
+{
+ if (_mesa_bufferobj_mapped(obj)) {
+ const GLintptr end = offset + size;
+ const GLintptr mapEnd = obj->Offset + obj->Length;
+
+ if (!(end <= obj->Offset || offset >= mapEnd)) {
+ return true;
+ }
+ }
+ return false;
+}
+
+
/**
* Tests the subdata range parameters and sets the GL error code for
- * \c glBufferSubDataARB and \c glGetBufferSubDataARB.
+ * \c glBufferSubDataARB, \c glGetBufferSubDataARB and
+ * \c glClearBufferSubData.
*
* \param ctx GL context.
* \param target Buffer object target on which to operate.
* \param offset Offset of the first byte of the subdata range.
* \param size Size, in bytes, of the subdata range.
+ * \param mappedRange If true, checks if an overlapping range is mapped.
+ * If false, checks if buffer is mapped.
+ * \param errorNoBuffer Error code if no buffer is bound to target.
* \param caller Name of calling function for recording errors.
* \return A pointer to the buffer object bound to \c target in the
* specified context or \c NULL if any of the parameter or state
- * conditions for \c glBufferSubDataARB or \c glGetBufferSubDataARB
- * are invalid.
+ * conditions are invalid.
*
- * \sa glBufferSubDataARB, glGetBufferSubDataARB
+ * \sa glBufferSubDataARB, glGetBufferSubDataARB, glClearBufferSubData
*/
static struct gl_buffer_object *
-buffer_object_subdata_range_good( struct gl_context * ctx, GLenum target,
- GLintptrARB offset, GLsizeiptrARB size,
- const char *caller )
+buffer_object_subdata_range_good(struct gl_context * ctx, GLenum target,
+ GLintptrARB offset, GLsizeiptrARB size,
+ bool mappedRange, GLenum errorNoBuffer,
+ const char *caller)
{
struct gl_buffer_object *bufObj;
return NULL;
}
- bufObj = get_buffer(ctx, caller, target);
+ bufObj = get_buffer(ctx, caller, target, errorNoBuffer);
if (!bufObj)
return NULL;
if (offset + size > bufObj->Size) {
_mesa_error(ctx, GL_INVALID_VALUE,
- "%s(offset %lu + size %lu > buffer size %lu)", caller,
+ "%s(offset %lu + size %lu > buffer size %lu)", caller,
(unsigned long) offset,
(unsigned long) size,
(unsigned long) bufObj->Size);
return NULL;
}
- if (_mesa_bufferobj_mapped(bufObj)) {
- /* Buffer is currently mapped */
- _mesa_error(ctx, GL_INVALID_OPERATION, "%s", caller);
- return NULL;
+
+ if (mappedRange) {
+ if (bufferobj_range_mapped(bufObj, offset, size)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "%s", caller);
+ return NULL;
+ }
+ }
+ else {
+ if (_mesa_bufferobj_mapped(bufObj)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "%s", caller);
+ return NULL;
+ }
}
return bufObj;
}
+/**
+ * Test the format and type parameters and set the GL error code for
+ * \c glClearBufferData and \c glClearBufferSubData.
+ *
+ * \param ctx GL context.
+ * \param internalformat Format to which the data is to be converted.
+ * \param format Format of the supplied data.
+ * \param type Type of the supplied data.
+ * \param caller Name of calling function for recording errors.
+ * \return If internalformat, format and type are legal the mesa_format
+ * corresponding to internalformat, otherwise MESA_FORMAT_NONE.
+ *
+ * \sa glClearBufferData and glClearBufferSubData
+ */
+static mesa_format
+validate_clear_buffer_format(struct gl_context *ctx,
+ GLenum internalformat,
+ GLenum format, GLenum type,
+ const char *caller)
+{
+ mesa_format mesaFormat;
+ GLenum errorFormatType;
+
+ mesaFormat = _mesa_validate_texbuffer_format(ctx, internalformat);
+ if (mesaFormat == MESA_FORMAT_NONE) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "%s(invalid internalformat)", caller);
+ return MESA_FORMAT_NONE;
+ }
+
+ /* NOTE: not mentioned in ARB_clear_buffer_object but according to
+ * EXT_texture_integer there is no conversion between integer and
+ * non-integer formats
+ */
+ if (_mesa_is_enum_format_signed_int(format) !=
+ _mesa_is_format_integer_color(mesaFormat)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "%s(integer vs non-integer)", caller);
+ return MESA_FORMAT_NONE;
+ }
+
+ if (!_mesa_is_color_format(format)) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "%s(format is not a color format)", caller);
+ return MESA_FORMAT_NONE;
+ }
+
+ errorFormatType = _mesa_error_check_format_and_type(ctx, format, type);
+ if (errorFormatType != GL_NO_ERROR) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "%s(invalid format or type)", caller);
+ return MESA_FORMAT_NONE;
+ }
+
+ return mesaFormat;
+}
+
+
+/**
+ * Convert user-specified clear value to the specified internal format.
+ *
+ * \param ctx GL context.
+ * \param internalformat Format to which the data is converted.
+ * \param clearValue Points to the converted clear value.
+ * \param format Format of the supplied data.
+ * \param type Type of the supplied data.
+ * \param data Data which is to be converted to internalformat.
+ * \param caller Name of calling function for recording errors.
+ * \return true if data could be converted, false otherwise.
+ *
+ * \sa glClearBufferData, glClearBufferSubData
+ */
+static bool
+convert_clear_buffer_data(struct gl_context *ctx,
+ mesa_format internalformat,
+ GLubyte *clearValue, GLenum format, GLenum type,
+ const GLvoid *data, const char *caller)
+{
+ GLenum internalformatBase = _mesa_get_format_base_format(internalformat);
+
+ if (_mesa_texstore(ctx, 1, internalformatBase, internalformat,
+ 0, &clearValue, 1, 1, 1,
+ format, type, data, &ctx->Unpack)) {
+ return true;
+ }
+ else {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "%s", caller);
+ return false;
+ }
+}
+
+
/**
* Allocate and initialize a new buffer object.
*
{
(void) ctx;
- free(bufObj->Data);
+ _mesa_align_free(bufObj->Data);
/* assign strange values here to help w/ debugging */
bufObj->RefCount = -1000;
{
void * new_data;
- (void) ctx; (void) target;
+ (void) target;
- new_data = _mesa_realloc( bufObj->Data, bufObj->Size, size );
+ if (bufObj->Data)
+ _mesa_align_free( bufObj->Data );
+
+ new_data = _mesa_align_malloc( size, ctx->Const.MinMapBufferAlignment );
if (new_data) {
bufObj->Data = (GLubyte *) new_data;
bufObj->Size = size;
}
+/**
+ * Clear a subrange of the buffer object with copies of the supplied data.
+ * If data is NULL the buffer is filled with zeros.
+ *
+ * This is the default callback for \c dd_function_table::ClearBufferSubData()
+ * Note that all GL error checking will have been done already.
+ *
+ * \param ctx GL context.
+ * \param offset Offset of the first byte to be cleared.
+ * \param size Size, in bytes, of the to be cleared range.
+ * \param clearValue Source of the data.
+ * \param clearValueSize Size, in bytes, of the supplied data.
+ * \param bufObj Object to be cleared.
+ *
+ * \sa glClearBufferSubData, glClearBufferData and
+ * dd_function_table::ClearBufferSubData.
+ */
+static void
+_mesa_buffer_clear_subdata(struct gl_context *ctx,
+ GLintptr offset, GLsizeiptr size,
+ const GLvoid *clearValue,
+ GLsizeiptr clearValueSize,
+ struct gl_buffer_object *bufObj)
+{
+ GLsizeiptr i;
+ GLubyte *dest;
+
+ if (_mesa_bufferobj_mapped(bufObj)) {
+ GLubyte *data = malloc(size);
+ GLubyte *dataStart = data;
+ if (data == NULL) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glClearBuffer[Sub]Data");
+ return;
+ }
+
+ if (clearValue == NULL) {
+ /* Clear with zeros, per the spec */
+ memset(data, 0, size);
+ }
+ else {
+ for (i = 0; i < size/clearValueSize; ++i) {
+ memcpy(data, clearValue, clearValueSize);
+ data += clearValueSize;
+ }
+ }
+ ctx->Driver.BufferSubData(ctx, offset, size, dataStart, bufObj);
+ return;
+ }
+
+ ASSERT(ctx->Driver.MapBufferRange);
+ dest = ctx->Driver.MapBufferRange(ctx, offset, size,
+ GL_MAP_WRITE_BIT |
+ GL_MAP_INVALIDATE_RANGE_BIT,
+ bufObj);
+
+ if (!dest) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glClearBuffer[Sub]Data");
+ return;
+ }
+
+ if (clearValue == NULL) {
+ /* Clear with zeros, per the spec */
+ memset(dest, 0, size);
+ ctx->Driver.UnmapBuffer(ctx, bufObj);
+ return;
+ }
+
+ for (i = 0; i < size/clearValueSize; ++i) {
+ memcpy(dest, clearValue, clearValueSize);
+ dest += clearValueSize;
+ }
+
+ ctx->Driver.UnmapBuffer(ctx, bufObj);
+}
+
+
/**
* Default fallback for \c dd_function_table::MapBufferRange().
* Called via glMapBufferRange().
_mesa_reference_buffer_object(ctx, &ctx->UniformBuffer,
ctx->Shared->NullBufferObj);
+ _mesa_reference_buffer_object(ctx, &ctx->DrawIndirectBuffer,
+ ctx->Shared->NullBufferObj);
+
for (i = 0; i < MAX_COMBINED_UNIFORM_BUFFERS; i++) {
_mesa_reference_buffer_object(ctx,
&ctx->UniformBufferBindings[i].BufferObject,
_mesa_reference_buffer_object(ctx, &ctx->UniformBuffer, NULL);
+ _mesa_reference_buffer_object(ctx, &ctx->DrawIndirectBuffer, NULL);
+
for (i = 0; i < MAX_COMBINED_UNIFORM_BUFFERS; i++) {
_mesa_reference_buffer_object(ctx,
&ctx->UniformBufferBindings[i].BufferObject,
driver->GetBufferSubData = _mesa_buffer_get_subdata;
driver->UnmapBuffer = _mesa_buffer_unmap;
+ /* GL_ARB_clear_buffer_object */
+ driver->ClearBufferSubData = _mesa_buffer_clear_subdata;
+
/* GL_ARB_map_buffer_range */
driver->MapBufferRange = _mesa_buffer_map_range;
driver->FlushMappedBufferRange = _mesa_buffer_flush_mapped_range;
_mesa_BindBuffer( GL_ELEMENT_ARRAY_BUFFER_ARB, 0 );
}
+ /* unbind ARB_draw_indirect binding point */
+ if (ctx->DrawIndirectBuffer == bufObj) {
+ _mesa_BindBuffer( GL_DRAW_INDIRECT_BUFFER, 0 );
+ }
+
/* unbind ARB_copy_buffer binding points */
if (ctx->CopyReadBuffer == bufObj) {
_mesa_BindBuffer( GL_COPY_READ_BUFFER, 0 );
return;
}
- bufObj = get_buffer(ctx, "glBufferDataARB", target);
+ bufObj = get_buffer(ctx, "glBufferDataARB", target, GL_INVALID_OPERATION);
if (!bufObj)
return;
struct gl_buffer_object *bufObj;
bufObj = buffer_object_subdata_range_good( ctx, target, offset, size,
+ false, GL_INVALID_OPERATION,
"glBufferSubDataARB" );
if (!bufObj) {
/* error already recorded */
GET_CURRENT_CONTEXT(ctx);
struct gl_buffer_object *bufObj;
- bufObj = buffer_object_subdata_range_good( ctx, target, offset, size,
- "glGetBufferSubDataARB" );
+ bufObj = buffer_object_subdata_range_good(ctx, target, offset, size,
+ false, GL_INVALID_OPERATION,
+ "glGetBufferSubDataARB");
if (!bufObj) {
/* error already recorded */
return;
}
+void GLAPIENTRY
+_mesa_ClearBufferData(GLenum target, GLenum internalformat, GLenum format,
+ GLenum type, const GLvoid* data)
+{
+ 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_bufferobj_mapped(bufObj)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glClearBufferData(buffer currently mapped)");
+ return;
+ }
+
+ mesaFormat = validate_clear_buffer_format(ctx, internalformat,
+ format, type,
+ "glClearBufferData");
+ if (mesaFormat == MESA_FORMAT_NONE) {
+ return;
+ }
+
+ clearValueSize = _mesa_get_format_bytes(mesaFormat);
+ if (bufObj->Size % clearValueSize != 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glClearBufferData(size is not a multiple of "
+ "internalformat size)");
+ return;
+ }
+
+ if (data == NULL) {
+ /* clear to zeros, per the spec */
+ ctx->Driver.ClearBufferSubData(ctx, 0, bufObj->Size,
+ NULL, 0, bufObj);
+ return;
+ }
+
+ if (!convert_clear_buffer_data(ctx, mesaFormat, clearValue,
+ format, type, data, "glClearBufferData")) {
+ return;
+ }
+
+ ctx->Driver.ClearBufferSubData(ctx, 0, bufObj->Size,
+ clearValue, clearValueSize, bufObj);
+}
+
+
+void GLAPIENTRY
+_mesa_ClearBufferSubData(GLenum target, GLenum internalformat,
+ GLintptr offset, GLsizeiptr size,
+ GLenum format, GLenum type,
+ const GLvoid* data)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ struct gl_buffer_object* bufObj;
+ mesa_format mesaFormat;
+ GLubyte clearValue[MAX_PIXEL_BYTES];
+ GLsizeiptr clearValueSize;
+
+ bufObj = buffer_object_subdata_range_good(ctx, target, offset, size,
+ true, GL_INVALID_VALUE,
+ "glClearBufferSubData");
+ if (!bufObj) {
+ 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 */
+ ctx->Driver.ClearBufferSubData(ctx, offset, size,
+ NULL, 0, bufObj);
+ return;
+ }
+
+ if (!convert_clear_buffer_data(ctx, mesaFormat, clearValue,
+ format, type, data,
+ "glClearBufferSubData")) {
+ return;
+ }
+
+ ctx->Driver.ClearBufferSubData(ctx, offset, size,
+ clearValue, clearValueSize, bufObj);
+}
+
+
void * GLAPIENTRY
_mesa_MapBuffer(GLenum target, GLenum access)
{
return NULL;
}
- bufObj = get_buffer(ctx, "glMapBufferARB", target);
+ bufObj = get_buffer(ctx, "glMapBufferARB", target, GL_INVALID_OPERATION);
if (!bufObj)
return NULL;
GLboolean status = GL_TRUE;
ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
- bufObj = get_buffer(ctx, "glUnmapBufferARB", target);
+ bufObj = get_buffer(ctx, "glUnmapBufferARB", target, GL_INVALID_OPERATION);
if (!bufObj)
return GL_FALSE;
GET_CURRENT_CONTEXT(ctx);
struct gl_buffer_object *bufObj;
- bufObj = get_buffer(ctx, "glGetBufferParameterivARB", target);
+ bufObj = get_buffer(ctx, "glGetBufferParameterivARB", target,
+ GL_INVALID_OPERATION);
if (!bufObj)
return;
GET_CURRENT_CONTEXT(ctx);
struct gl_buffer_object *bufObj;
- bufObj = get_buffer(ctx, "glGetBufferParameteri64v", target);
+ bufObj = get_buffer(ctx, "glGetBufferParameteri64v", target,
+ GL_INVALID_OPERATION);
if (!bufObj)
return;
return;
}
- bufObj = get_buffer(ctx, "glGetBufferPointervARB", target);
+ bufObj = get_buffer(ctx, "glGetBufferPointervARB", target,
+ GL_INVALID_OPERATION);
if (!bufObj)
return;
GET_CURRENT_CONTEXT(ctx);
struct gl_buffer_object *src, *dst;
- src = get_buffer(ctx, "glCopyBufferSubData", readTarget);
+ src = get_buffer(ctx, "glCopyBufferSubData", readTarget,
+ GL_INVALID_OPERATION);
if (!src)
return;
- dst = get_buffer(ctx, "glCopyBufferSubData", writeTarget);
+ dst = get_buffer(ctx, "glCopyBufferSubData", writeTarget,
+ GL_INVALID_OPERATION);
if (!dst)
return;
return NULL;
}
- bufObj = get_buffer(ctx, "glMapBufferRange", target);
+ bufObj = get_buffer(ctx, "glMapBufferRange", target, GL_INVALID_OPERATION);
if (!bufObj)
return NULL;
return;
}
- bufObj = get_buffer(ctx, "glFlushMappedBufferRange", target);
+ bufObj = get_buffer(ctx, "glFlushMappedBufferRange", target,
+ GL_INVALID_OPERATION);
if (!bufObj)
return;
* mapped by MapBuffer, or if the invalidate range intersects the range
* currently mapped by MapBufferRange."
*/
- if (_mesa_bufferobj_mapped(bufObj)) {
- const GLintptr mapEnd = bufObj->Offset + bufObj->Length;
-
- /* The regions do not overlap if and only if the end of the discard
- * region is before the mapped region or the start of the discard region
- * is after the mapped region.
- *
- * Note that 'end' and 'mapEnd' are the first byte *after* the discard
- * region and the mapped region, repsectively. It is okay for that byte
- * to be mapped (for 'end') or discarded (for 'mapEnd').
- */
- if (!(end <= bufObj->Offset || offset >= mapEnd)) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glInvalidateBufferSubData(intersection with mapped "
- "range)");
- return;
- }
+ if (bufferobj_range_mapped(bufObj, offset, length)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glInvalidateBufferSubData(intersection with mapped "
+ "range)");
+ return;
}
/* We don't actually do anything for this yet. Just return after
projects / mesa.git / blobdiff