/**
* Free up everything allocated during split/replay.
*/
static void
replay_finish( struct copy_context *copy )
{
struct gl_context *ctx = copy->ctx;
GLuint i;
/* Free our vertex and index buffers:
*/
free(copy->translated_elt_buf);
free(copy->dstbuf);
free(copy->dstelt);
/* Unmap VBO's
*/
for (i = 0; i < copy->nr_varying; i++) {
struct gl_buffer_object *vbo = copy->varying[i].array->BufferObj;
if (_mesa_is_bufferobj(vbo) && _mesa_bufferobj_mapped(vbo, MAP_INTERNAL))
ctx->Driver.UnmapBuffer(ctx, vbo, MAP_INTERNAL);
}
/* Unmap index buffer:
*/
if (_mesa_is_bufferobj(copy->ib->obj) &&
_mesa_bufferobj_mapped(copy->ib->obj, MAP_INTERNAL)) {
ctx->Driver.UnmapBuffer(ctx, copy->ib->obj, MAP_INTERNAL);
}
}
void vbo_exec_vtx_destroy( struct vbo_exec_context *exec )
{
/* using a real VBO for vertex data */
struct gl_context *ctx = exec->ctx;
unsigned i;
/* True VBOs should already be unmapped
*/
if (exec->vtx.buffer_map) {
assert(exec->vtx.bufferobj->Name == 0 ||
exec->vtx.bufferobj->Name == IMM_BUFFER_NAME);
if (exec->vtx.bufferobj->Name == 0) {
_mesa_align_free(exec->vtx.buffer_map);
exec->vtx.buffer_map = NULL;
exec->vtx.buffer_ptr = NULL;
}
}
/* Drop any outstanding reference to the vertex buffer
*/
for (i = 0; i < ARRAY_SIZE(exec->vtx.arrays); i++) {
_mesa_reference_buffer_object(ctx,
&exec->vtx.arrays[i].BufferObj,
NULL);
}
/* Free the vertex buffer. Unmap first if needed.
*/
if (_mesa_bufferobj_mapped(exec->vtx.bufferobj, MAP_INTERNAL)) {
ctx->Driver.UnmapBuffer(ctx, exec->vtx.bufferobj, MAP_INTERNAL);
}
_mesa_reference_buffer_object(ctx, &exec->vtx.bufferobj, NULL);
}
/**
* Delete a set of buffer objects.
*
* \param n Number of buffer objects to delete.
* \param ids Array of \c n buffer object IDs.
*/
void GLAPIENTRY
_mesa_DeleteBuffersARB(GLsizei n, const GLuint *ids)
{
GET_CURRENT_CONTEXT(ctx);
GLsizei i;
ASSERT_OUTSIDE_BEGIN_END(ctx);
FLUSH_VERTICES(ctx, 0);
if (n < 0) {
_mesa_error(ctx, GL_INVALID_VALUE, "glDeleteBuffersARB(n)");
return;
}
_glthread_LOCK_MUTEX(ctx->Shared->Mutex);
for (i = 0; i < n; i++) {
struct gl_buffer_object *bufObj = _mesa_lookup_bufferobj(ctx, ids[i]);
if (bufObj) {
GLuint j;
ASSERT(bufObj->Name == ids[i] || bufObj == &DummyBufferObject);
if (_mesa_bufferobj_mapped(bufObj)) {
/* if mapped, unmap it now */
ctx->Driver.UnmapBuffer(ctx, bufObj);
bufObj->AccessFlags = default_access_mode(ctx);
bufObj->Pointer = NULL;
}
/* unbind any vertex pointers bound to this buffer */
for (j = 0; j < Elements(ctx->Array.VertexAttrib); j++) {
unbind(ctx, &ctx->Array.VertexAttrib[j].BufferObj, bufObj);
}
if (ctx->Array.ElementArrayBufferObj == bufObj) {
_mesa_BindBufferARB( GL_ELEMENT_ARRAY_BUFFER_ARB, 0 );
}
/* The ID is immediately freed for re-use */
_mesa_HashRemove(ctx->Shared->BufferObjects, ids[i]);
/* Make sure we do not run into the classic ABA problem on bind.
* We don't want to allow re-binding a buffer object that's been
* "deleted" by glDeleteBuffers().
*
* The explicit rebinding to the default object in the current context
* prevents the above in the current context, but another context
* sharing the same objects might suffer from this problem.
* The alternative would be to do the hash lookup in any case on bind
* which would introduce more runtime overhead than this.
*/
bufObj->DeletePending = GL_TRUE;
_mesa_reference_buffer_object(ctx, &bufObj, NULL);
}
}
_glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
}
/**
* Unmap the buffer object referenced by given array, if mapped.
*/
static void
unmap_array_buffer(struct gl_context *ctx, struct gl_client_array *array)
{
if (array->Enabled &&
_mesa_is_bufferobj(array->BufferObj) &&
_mesa_bufferobj_mapped(array->BufferObj)) {
ctx->Driver.UnmapBuffer(ctx, array->BufferObj);
}
}
/**
* A debug function that may be called from other parts of Mesa as
* needed during debugging.
*/
void
vbo_check_buffers_are_unmapped(struct gl_context *ctx)
{
struct vbo_context *vbo = vbo_context(ctx);
struct vbo_exec_context *exec = &vbo->exec;
/* 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));
}
/**
* 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,
"glFlushMappedBufferRange(extension not supported)");
return;
}
if (offset < 0) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glFlushMappedBufferRange(offset = %ld)", (long)offset);
return;
}
if (length < 0) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glFlushMappedBufferRange(length = %ld)", (long)length);
return;
}
bufObj = get_buffer(ctx, "glFlushMappedBufferRange", target);
if (!bufObj)
return;
if (!_mesa_bufferobj_mapped(bufObj)) {
/* buffer is not mapped */
_mesa_error(ctx, GL_INVALID_OPERATION,
"glFlushMappedBufferRange(buffer is not mapped)");
return;
}
if ((bufObj->AccessFlags & GL_MAP_FLUSH_EXPLICIT_BIT) == 0) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glFlushMappedBufferRange(GL_MAP_FLUSH_EXPLICIT_BIT not set)");
return;
}
if (offset + length > bufObj->Length) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glFlushMappedBufferRange(offset %ld + length %ld > mapped length %ld)",
(long)offset, (long)length, (long)bufObj->Length);
return;
}
ASSERT(bufObj->AccessFlags & GL_MAP_WRITE_BIT);
if (ctx->Driver.FlushMappedBufferRange)
ctx->Driver.FlushMappedBufferRange(ctx, offset, length, bufObj);
}
/* Translate indices to GLuints and store in VB->Elts.
*/
static void bind_indices( struct gl_context *ctx,
const struct _mesa_index_buffer *ib,
struct gl_buffer_object **bo,
GLuint *nr_bo)
{
TNLcontext *tnl = TNL_CONTEXT(ctx);
struct vertex_buffer *VB = &tnl->vb;
GLuint i;
const void *ptr;
if (!ib) {
VB->Elts = NULL;
return;
}
if (_mesa_is_bufferobj(ib->obj) &&
!_mesa_bufferobj_mapped(ib->obj, MAP_INTERNAL)) {
/* if the buffer object isn't mapped yet, map it now */
bo[*nr_bo] = ib->obj;
(*nr_bo)++;
ptr = ctx->Driver.MapBufferRange(ctx, (GLsizeiptr) ib->ptr,
ib->count * vbo_sizeof_ib_type(ib->type),
GL_MAP_READ_BIT, ib->obj,
MAP_INTERNAL);
assert(ib->obj->Mappings[MAP_INTERNAL].Pointer);
} else {
/* user-space elements, or buffer already mapped */
ptr = ADD_POINTERS(ib->obj->Mappings[MAP_INTERNAL].Pointer, ib->ptr);
}
if (ib->type == GL_UNSIGNED_INT && VB->Primitive[0].basevertex == 0) {
VB->Elts = (GLuint *) ptr;
}
else {
GLuint *elts = (GLuint *)get_space(ctx, ib->count * sizeof(GLuint));
VB->Elts = elts;
if (ib->type == GL_UNSIGNED_INT) {
const GLuint *in = (GLuint *)ptr;
for (i = 0; i < ib->count; i++)
*elts++ = (GLuint)(*in++) + VB->Primitive[0].basevertex;
}
else if (ib->type == GL_UNSIGNED_SHORT) {
const GLushort *in = (GLushort *)ptr;
for (i = 0; i < ib->count; i++)
*elts++ = (GLuint)(*in++) + VB->Primitive[0].basevertex;
}
else {
const GLubyte *in = (GLubyte *)ptr;
for (i = 0; i < ib->count; i++)
*elts++ = (GLuint)(*in++) + VB->Primitive[0].basevertex;
}
}
}
/**
* Check if the given vertex buffer object exists and is not mapped.
* If so, add it to the list of buffers we must map before executing
* an glArrayElement call.
*/
static void
check_vbo(AEcontext *actx, struct gl_buffer_object *vbo)
{
if (_mesa_is_bufferobj(vbo) && !_mesa_bufferobj_mapped(vbo)) {
GLuint i;
for (i = 0; i < actx->nr_vbos; i++)
if (actx->vbo[i] == vbo)
return; /* already in the list, we're done */
assert(actx->nr_vbos < VERT_ATTRIB_MAX);
actx->vbo[actx->nr_vbos++] = vbo;
}
}
/**
* Default fallback for \c dd_function_table::MapBufferRange().
* Called via glMapBufferRange().
*/
static void *
_mesa_buffer_map_range( struct gl_context *ctx, GLintptr offset,
GLsizeiptr length, GLbitfield access,
struct gl_buffer_object *bufObj )
{
(void) ctx;
assert(!_mesa_bufferobj_mapped(bufObj));
/* Just return a direct pointer to the data */
bufObj->Pointer = bufObj->Data + offset;
bufObj->Length = length;
bufObj->Offset = offset;
bufObj->AccessFlags = access;
return bufObj->Pointer;
}
/**
* All vertex buffers should be in an unmapped state when we're about
* to draw. This debug function checks that.
*/
static void
check_buffers_are_unmapped(const struct gl_client_array **inputs)
{
#ifdef DEBUG
GLuint i;
for (i = 0; i < VERT_ATTRIB_MAX; i++) {
if (inputs[i]) {
struct gl_buffer_object *obj = inputs[i]->BufferObj;
assert(!_mesa_bufferobj_mapped(obj));
(void) obj;
}
}
#endif
}
/**
* New in GL 3.2
* This is pretty much a duplicate of GetBufferParameteriv() but the
* GL_BUFFER_SIZE_ARB attribute will be 64-bits on a 64-bit system.
*/
void GLAPIENTRY
_mesa_GetBufferParameteri64v(GLenum target, GLenum pname, GLint64 *params)
{
GET_CURRENT_CONTEXT(ctx);
struct gl_buffer_object *bufObj;
ASSERT_OUTSIDE_BEGIN_END(ctx);
bufObj = get_buffer(ctx, "glGetBufferParameteri64v", target);
if (!bufObj)
return;
switch (pname) {
case GL_BUFFER_SIZE_ARB:
*params = bufObj->Size;
return;
case GL_BUFFER_USAGE_ARB:
*params = bufObj->Usage;
return;
case GL_BUFFER_ACCESS_ARB:
*params = simplified_access_mode(bufObj->AccessFlags);
return;
case GL_BUFFER_ACCESS_FLAGS:
if (!ctx->Extensions.ARB_map_buffer_range)
goto invalid_pname;
*params = bufObj->AccessFlags;
return;
case GL_BUFFER_MAPPED_ARB:
*params = _mesa_bufferobj_mapped(bufObj);
return;
case GL_BUFFER_MAP_OFFSET:
if (!ctx->Extensions.ARB_map_buffer_range)
goto invalid_pname;
*params = bufObj->Offset;
return;
case GL_BUFFER_MAP_LENGTH:
if (!ctx->Extensions.ARB_map_buffer_range)
goto invalid_pname;
*params = bufObj->Length;
return;
default:
; /* fall-through */
}
invalid_pname:
_mesa_error(ctx, GL_INVALID_ENUM, "glGetBufferParameteri64v(pname=%s)",
_mesa_lookup_enum_by_nr(pname));
}
/**
* Combine PBO-read validation and mapping.
* If any GL errors are detected, they'll be recorded and NULL returned.
* \sa _mesa_validate_pbo_access
* \sa _mesa_map_pbo_source
* A call to this function should have a matching call to
* _mesa_unmap_pbo_source().
*/
const GLvoid *
_mesa_map_validate_pbo_source(struct gl_context *ctx,
GLuint dimensions,
const struct gl_pixelstore_attrib *unpack,
GLsizei width, GLsizei height, GLsizei depth,
GLenum format, GLenum type,
GLsizei clientMemSize,
const GLvoid *ptr, const char *where)
{
ASSERT(dimensions == 1 || dimensions == 2 || dimensions == 3);
if (!_mesa_validate_pbo_access(dimensions, unpack, width, height, depth,
format, type, clientMemSize, ptr)) {
if (_mesa_is_bufferobj(unpack->BufferObj)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"%s(out of bounds PBO access)", where);
} else {
_mesa_error(ctx, GL_INVALID_OPERATION,
"%s(out of bounds access: bufSize (%d) is too small)",
where, clientMemSize);
}
return NULL;
}
if (!_mesa_is_bufferobj(unpack->BufferObj)) {
/* non-PBO access: no further validation to be done */
return ptr;
}
if (_mesa_bufferobj_mapped(unpack->BufferObj)) {
/* buffer is already mapped - that's an error */
_mesa_error(ctx, GL_INVALID_OPERATION, "%s(PBO is mapped)", where);
return NULL;
}
ptr = _mesa_map_pbo_source(ctx, unpack, ptr);
return ptr;
}
/**
* Tests the subdata range parameters and sets the GL error code for
* \c glBufferSubDataARB and \c glGetBufferSubDataARB.
*
* \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 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.
*
* \sa glBufferSubDataARB, glGetBufferSubDataARB
*/
static struct gl_buffer_object *
buffer_object_subdata_range_good( struct gl_context * ctx, GLenum target,
GLintptrARB offset, GLsizeiptrARB size,
const char *caller )
{
struct gl_buffer_object *bufObj;
if (size < 0) {
_mesa_error(ctx, GL_INVALID_VALUE, "%s(size < 0)", caller);
return NULL;
}
if (offset < 0) {
_mesa_error(ctx, GL_INVALID_VALUE, "%s(offset < 0)", caller);
return NULL;
}
bufObj = get_buffer(ctx, caller, target);
if (!bufObj)
return NULL;
if (offset + size > bufObj->Size) {
_mesa_error(ctx, GL_INVALID_VALUE,
"%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;
}
return bufObj;
}
/**
* Do error checking for a glGetCompressedTexImage() call.
* \return GL_TRUE if any error, GL_FALSE if no errors.
*/
static GLboolean
getcompressedteximage_error_check(GLcontext *ctx, GLenum target, GLint level,
GLvoid *img)
{
struct gl_texture_object *texObj;
struct gl_texture_image *texImage;
const GLuint maxLevels = _mesa_max_texture_levels(ctx, target);
if (maxLevels == 0) {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImage(target=0x%x)",
target);
return GL_TRUE;
}
if (level < 0 || level >= maxLevels) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glGetCompressedTexImageARB(bad level = %d)", level);
return GL_TRUE;
}
if (_mesa_is_proxy_texture(target)) {
_mesa_error(ctx, GL_INVALID_ENUM,
"glGetCompressedTexImageARB(bad target = %s)",
_mesa_lookup_enum_by_nr(target));
return GL_TRUE;
}
texObj = _mesa_get_current_tex_object(ctx, target);
if (!texObj) {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImageARB(target)");
return GL_TRUE;
}
texImage = _mesa_select_tex_image(ctx, texObj, target, level);
if (!texImage) {
/* probably invalid mipmap level */
_mesa_error(ctx, GL_INVALID_VALUE,
"glGetCompressedTexImageARB(level)");
return GL_TRUE;
}
if (!_mesa_is_format_compressed(texImage->TexFormat)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glGetCompressedTexImageARB(texture is not compressed)");
return GL_TRUE;
}
if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
GLuint compressedSize;
/* make sure PBO is not mapped */
if (_mesa_bufferobj_mapped(ctx->Pack.BufferObj)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glGetCompressedTexImage(PBO is mapped)");
return GL_TRUE;
}
compressedSize = _mesa_format_image_size(texImage->TexFormat,
texImage->Width,
texImage->Height,
texImage->Depth);
/* do bounds checking on PBO write */
if ((const GLubyte *) img + compressedSize >
(const GLubyte *) ctx->Pack.BufferObj->Size) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glGetCompressedTexImage(out of bounds PBO write)");
return GL_TRUE;
}
}
return GL_FALSE;
}
/**
* Do error checking for a glGetTexImage() call.
* \return GL_TRUE if any error, GL_FALSE if no errors.
*/
static GLboolean
getteximage_error_check(struct gl_context *ctx, GLenum target, GLint level,
GLenum format, GLenum type, GLsizei clientMemSize,
GLvoid *pixels )
{
struct gl_texture_object *texObj;
struct gl_texture_image *texImage;
const GLint maxLevels = _mesa_max_texture_levels(ctx, target);
const GLuint dimensions = (target == GL_TEXTURE_3D) ? 3 : 2;
GLenum baseFormat, err;
if (!legal_getteximage_target(ctx, target)) {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(target=0x%x)", target);
return GL_TRUE;
}
assert(maxLevels != 0);
if (level < 0 || level >= maxLevels) {
_mesa_error( ctx, GL_INVALID_VALUE, "glGetTexImage(level)" );
return GL_TRUE;
}
err = _mesa_error_check_format_and_type(ctx, format, type);
if (err != GL_NO_ERROR) {
_mesa_error(ctx, err, "glGetTexImage(format/type)");
return GL_TRUE;
}
texObj = _mesa_get_current_tex_object(ctx, target);
if (!texObj) {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(target)");
return GL_TRUE;
}
texImage = _mesa_select_tex_image(ctx, texObj, target, level);
if (!texImage) {
/* non-existant texture image */
return GL_TRUE;
}
baseFormat = _mesa_get_format_base_format(texImage->TexFormat);
/* Make sure the requested image format is compatible with the
* texture's format.
*/
if (_mesa_is_color_format(format)
&& !_mesa_is_color_format(baseFormat)) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
return GL_TRUE;
}
else if (_mesa_is_depth_format(format)
&& !_mesa_is_depth_format(baseFormat)
&& !_mesa_is_depthstencil_format(baseFormat)) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
return GL_TRUE;
}
else if (_mesa_is_ycbcr_format(format)
&& !_mesa_is_ycbcr_format(baseFormat)) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
return GL_TRUE;
}
else if (_mesa_is_depthstencil_format(format)
&& !_mesa_is_depthstencil_format(baseFormat)) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
return GL_TRUE;
}
else if (_mesa_is_dudv_format(format)
&& !_mesa_is_dudv_format(baseFormat)) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
return GL_TRUE;
}
if (!_mesa_validate_pbo_access(dimensions, &ctx->Pack, texImage->Width,
texImage->Height, texImage->Depth,
format, type, clientMemSize, pixels)) {
if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glGetTexImage(out of bounds PBO access)");
} else {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glGetnTexImageARB(out of bounds access:"
" bufSize (%d) is too small)", clientMemSize);
}
return GL_TRUE;
}
if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
/* PBO should not be mapped */
if (_mesa_bufferobj_mapped(ctx->Pack.BufferObj)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glGetTexImage(PBO is mapped)");
return GL_TRUE;
}
}
return GL_FALSE;
}
/*
* Execute glDrawPixels
*/
static void GLAPIENTRY
_mesa_DrawPixels( GLsizei width, GLsizei height,
GLenum format, GLenum type, const GLvoid *pixels )
{
GLenum err;
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
if (MESA_VERBOSE & VERBOSE_API)
_mesa_debug(ctx, "glDrawPixels(%d, %d, %s, %s, %p) // to %s at %d, %d\n",
width, height,
_mesa_lookup_enum_by_nr(format),
_mesa_lookup_enum_by_nr(type),
pixels,
_mesa_lookup_enum_by_nr(ctx->DrawBuffer->ColorDrawBuffer[0]),
IROUND(ctx->Current.RasterPos[0]),
IROUND(ctx->Current.RasterPos[1]));
if (width < 0 || height < 0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glDrawPixels(width or height < 0)" );
return;
}
/* We're not using the current vertex program, and the driver may install
* its own. Note: this may dirty some state.
*/
_mesa_set_vp_override(ctx, GL_TRUE);
/* Note: this call does state validation */
if (!_mesa_valid_to_render(ctx, "glDrawPixels")) {
goto end; /* the error code was recorded */
}
/* GL 3.0 introduced a new restriction on glDrawPixels() over what was in
* GL_EXT_texture_integer. From section 3.7.4 ("Rasterization of Pixel
* Rectangles) on page 151 of the GL 3.0 specification:
*
* "If format contains integer components, as shown in table 3.6, an
* INVALID OPERATION error is generated."
*
* Since DrawPixels rendering would be merely undefined if not an error (due
* to a lack of defined mapping from integer data to gl_Color fragment shader
* input), NVIDIA's implementation also just returns this error despite
* exposing GL_EXT_texture_integer, just return an error regardless.
*/
if (_mesa_is_enum_format_integer(format)) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glDrawPixels(integer format)");
goto end;
}
err = _mesa_error_check_format_and_type(ctx, format, type);
if (err != GL_NO_ERROR) {
_mesa_error(ctx, err, "glDrawPixels(invalid format %s and/or type %s)",
_mesa_lookup_enum_by_nr(format),
_mesa_lookup_enum_by_nr(type));
goto end;
}
/* do special format-related checks */
switch (format) {
case GL_STENCIL_INDEX:
case GL_DEPTH_COMPONENT:
case GL_DEPTH_STENCIL_EXT:
/* these buffers must exist */
if (!_mesa_dest_buffer_exists(ctx, format)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glDrawPixels(missing deest buffer)");
goto end;
}
break;
case GL_COLOR_INDEX:
if (ctx->PixelMaps.ItoR.Size == 0 ||
ctx->PixelMaps.ItoG.Size == 0 ||
ctx->PixelMaps.ItoB.Size == 0) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glDrawPixels(drawing color index pixels into RGB buffer)");
goto end;
}
break;
default:
/* for color formats it's not an error if the destination color
* buffer doesn't exist.
*/
break;
}
if (ctx->RasterDiscard) {
goto end;
}
if (!ctx->Current.RasterPosValid) {
goto end; /* no-op, not an error */
}
if (ctx->RenderMode == GL_RENDER) {
if (width > 0 && height > 0) {
/* Round, to satisfy conformance tests (matches SGI's OpenGL) */
GLint x = IROUND(ctx->Current.RasterPos[0]);
GLint y = IROUND(ctx->Current.RasterPos[1]);
if (_mesa_is_bufferobj(ctx->Unpack.BufferObj)) {
/* unpack from PBO */
if (!_mesa_validate_pbo_access(2, &ctx->Unpack, width, height,
1, format, type, INT_MAX, pixels)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glDrawPixels(invalid PBO access)");
goto end;
}
if (_mesa_bufferobj_mapped(ctx->Unpack.BufferObj)) {
/* buffer is mapped - that's an error */
_mesa_error(ctx, GL_INVALID_OPERATION,
"glDrawPixels(PBO is mapped)");
goto end;
}
}
ctx->Driver.DrawPixels(ctx, x, y, width, height, format, type,
&ctx->Unpack, pixels);
}
}
else if (ctx->RenderMode == GL_FEEDBACK) {
/* Feedback the current raster pos info */
FLUSH_CURRENT( ctx, 0 );
_mesa_feedback_token( ctx, (GLfloat) (GLint) GL_DRAW_PIXEL_TOKEN );
_mesa_feedback_vertex( ctx,
ctx->Current.RasterPos,
ctx->Current.RasterColor,
ctx->Current.RasterTexCoords[0] );
}
else {
ASSERT(ctx->RenderMode == GL_SELECT);
/* Do nothing. See OpenGL Spec, Appendix B, Corollary 6. */
}
end:
_mesa_set_vp_override(ctx, GL_FALSE);
if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH) {
_mesa_flush(ctx);
}
}
static void GLAPIENTRY
_mesa_Bitmap( GLsizei width, GLsizei height,
GLfloat xorig, GLfloat yorig, GLfloat xmove, GLfloat ymove,
const GLubyte *bitmap )
{
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
if (width < 0 || height < 0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glBitmap(width or height < 0)" );
return;
}
if (!ctx->Current.RasterPosValid) {
return; /* do nothing */
}
/* Note: this call does state validation */
if (!_mesa_valid_to_render(ctx, "glBitmap")) {
/* the error code was recorded */
return;
}
if (ctx->RasterDiscard)
return;
if (ctx->RenderMode == GL_RENDER) {
/* Truncate, to satisfy conformance tests (matches SGI's OpenGL). */
if (width > 0 && height > 0) {
const GLfloat epsilon = 0.0001F;
GLint x = IFLOOR(ctx->Current.RasterPos[0] + epsilon - xorig);
GLint y = IFLOOR(ctx->Current.RasterPos[1] + epsilon - yorig);
if (_mesa_is_bufferobj(ctx->Unpack.BufferObj)) {
/* unpack from PBO */
if (!_mesa_validate_pbo_access(2, &ctx->Unpack, width, height,
1, GL_COLOR_INDEX, GL_BITMAP,
INT_MAX, (const GLvoid *) bitmap)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glBitmap(invalid PBO access)");
return;
}
if (_mesa_bufferobj_mapped(ctx->Unpack.BufferObj)) {
/* buffer is mapped - that's an error */
_mesa_error(ctx, GL_INVALID_OPERATION,
"glBitmap(PBO is mapped)");
return;
}
}
ctx->Driver.Bitmap( ctx, x, y, width, height, &ctx->Unpack, bitmap );
}
}
#if _HAVE_FULL_GL
else if (ctx->RenderMode == GL_FEEDBACK) {
FLUSH_CURRENT(ctx, 0);
_mesa_feedback_token( ctx, (GLfloat) (GLint) GL_BITMAP_TOKEN );
_mesa_feedback_vertex( ctx,
ctx->Current.RasterPos,
ctx->Current.RasterColor,
ctx->Current.RasterTexCoords[0] );
}
else {
ASSERT(ctx->RenderMode == GL_SELECT);
/* Do nothing. See OpenGL Spec, Appendix B, Corollary 6. */
}
#endif
/* update raster position */
ctx->Current.RasterPos[0] += xmove;
ctx->Current.RasterPos[1] += ymove;
if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH) {
_mesa_flush(ctx);
}
}
/*
* Execute glDrawPixels
*/
static void GLAPIENTRY
_mesa_DrawPixels( GLsizei width, GLsizei height,
GLenum format, GLenum type, const GLvoid *pixels )
{
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
if (width < 0 || height < 0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glDrawPixels(width or height < 0" );
return;
}
/* We're not using the current vertex program, and the driver may install
* it's own.
*/
_mesa_set_vp_override(ctx, GL_TRUE);
if (ctx->NewState) {
_mesa_update_state(ctx);
}
if (!valid_fragment_program(ctx)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glDrawPixels (invalid fragment program)");
goto end;
}
if (_mesa_error_check_format_type(ctx, format, type, GL_TRUE)) {
/* the error was already recorded */
goto end;
}
if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
_mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
"glDrawPixels(incomplete framebuffer)" );
goto end;
}
if (!ctx->Current.RasterPosValid) {
goto end; /* no-op, not an error */
}
if (ctx->RenderMode == GL_RENDER) {
if (width > 0 && height > 0) {
/* Round, to satisfy conformance tests (matches SGI's OpenGL) */
GLint x = IROUND(ctx->Current.RasterPos[0]);
GLint y = IROUND(ctx->Current.RasterPos[1]);
if (ctx->Unpack.BufferObj->Name) {
/* unpack from PBO */
if (!_mesa_validate_pbo_access(2, &ctx->Unpack, width, height, 1,
format, type, pixels)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glDrawPixels(invalid PBO access)");
goto end;
}
if (_mesa_bufferobj_mapped(ctx->Unpack.BufferObj)) {
/* buffer is mapped - that's an error */
_mesa_error(ctx, GL_INVALID_OPERATION,
"glDrawPixels(PBO is mapped)");
goto end;
}
}
ctx->Driver.DrawPixels(ctx, x, y, width, height, format, type,
&ctx->Unpack, pixels);
}
}
else if (ctx->RenderMode == GL_FEEDBACK) {
/* Feedback the current raster pos info */
FLUSH_CURRENT( ctx, 0 );
_mesa_feedback_token( ctx, (GLfloat) (GLint) GL_DRAW_PIXEL_TOKEN );
_mesa_feedback_vertex( ctx,
ctx->Current.RasterPos,
ctx->Current.RasterColor,
ctx->Current.RasterIndex,
ctx->Current.RasterTexCoords[0] );
}
else {
ASSERT(ctx->RenderMode == GL_SELECT);
/* Do nothing. See OpenGL Spec, Appendix B, Corollary 6. */
}
end:
_mesa_set_vp_override(ctx, GL_FALSE);
}
static void GLAPIENTRY
_mesa_Bitmap( GLsizei width, GLsizei height,
GLfloat xorig, GLfloat yorig, GLfloat xmove, GLfloat ymove,
const GLubyte *bitmap )
{
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
if (width < 0 || height < 0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glBitmap(width or height < 0)" );
return;
}
if (!ctx->Current.RasterPosValid) {
return; /* do nothing */
}
if (ctx->NewState) {
_mesa_update_state(ctx);
}
if (!valid_fragment_program(ctx)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glBitmap (invalid fragment program)");
return;
}
if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
_mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
"glBitmap(incomplete framebuffer)");
return;
}
if (ctx->RenderMode == GL_RENDER) {
/* Truncate, to satisfy conformance tests (matches SGI's OpenGL). */
if (width > 0 && height > 0) {
const GLfloat epsilon = 0.0001F;
GLint x = IFLOOR(ctx->Current.RasterPos[0] + epsilon - xorig);
GLint y = IFLOOR(ctx->Current.RasterPos[1] + epsilon - yorig);
if (ctx->Unpack.BufferObj->Name) {
/* unpack from PBO */
if (!_mesa_validate_pbo_access(2, &ctx->Unpack, width, height, 1,
GL_COLOR_INDEX, GL_BITMAP,
(GLvoid *) bitmap)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glBitmap(invalid PBO access)");
return;
}
if (_mesa_bufferobj_mapped(ctx->Unpack.BufferObj)) {
/* buffer is mapped - that's an error */
_mesa_error(ctx, GL_INVALID_OPERATION,
"glBitmap(PBO is mapped)");
return;
}
}
ctx->Driver.Bitmap( ctx, x, y, width, height, &ctx->Unpack, bitmap );
}
}
#if _HAVE_FULL_GL
else if (ctx->RenderMode == GL_FEEDBACK) {
FLUSH_CURRENT(ctx, 0);
_mesa_feedback_token( ctx, (GLfloat) (GLint) GL_BITMAP_TOKEN );
_mesa_feedback_vertex( ctx,
ctx->Current.RasterPos,
ctx->Current.RasterColor,
ctx->Current.RasterIndex,
ctx->Current.RasterTexCoords[0] );
}
else {
ASSERT(ctx->RenderMode == GL_SELECT);
/* Do nothing. See OpenGL Spec, Appendix B, Corollary 6. */
}
#endif
/* update raster position */
ctx->Current.RasterPos[0] += xmove;
ctx->Current.RasterPos[1] += ymove;
}
void GLAPIENTRY
_mesa_ReadnPixelsARB( GLint x, GLint y, GLsizei width, GLsizei height,
GLenum format, GLenum type, GLsizei bufSize,
GLvoid *pixels )
{
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
FLUSH_CURRENT(ctx, 0);
if (MESA_VERBOSE & VERBOSE_API)
_mesa_debug(ctx, "glReadPixels(%d, %d, %s, %s, %p)\n",
width, height,
_mesa_lookup_enum_by_nr(format),
_mesa_lookup_enum_by_nr(type),
pixels);
if (width < 0 || height < 0) {
_mesa_error( ctx, GL_INVALID_VALUE,
"glReadPixels(width=%d height=%d)", width, height );
return;
}
if (ctx->NewState)
_mesa_update_state(ctx);
if (_mesa_error_check_format_type(ctx, format, type, GL_FALSE)) {
/* found an error */
return;
}
/* Check that the destination format and source buffer are both
* integer-valued or both non-integer-valued.
*/
if (ctx->Extensions.EXT_texture_integer && _mesa_is_color_format(format)) {
const struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer;
const GLboolean srcInteger = _mesa_is_format_integer_color(rb->Format);
const GLboolean dstInteger = _mesa_is_integer_format(format);
if (dstInteger != srcInteger) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glReadPixels(integer / non-integer format mismatch");
return;
}
}
if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
_mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
"glReadPixels(incomplete framebuffer)" );
return;
}
if (ctx->ReadBuffer->Name != 0 && ctx->ReadBuffer->Visual.samples > 0) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glReadPixels(multisample FBO)");
return;
}
if (!_mesa_source_buffer_exists(ctx, format)) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glReadPixels(no readbuffer)");
return;
}
if (width == 0 || height == 0)
return; /* nothing to do */
if (!_mesa_validate_pbo_access(2, &ctx->Pack, width, height, 1,
format, type, bufSize, pixels)) {
if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glReadPixels(out of bounds PBO access)");
} else {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glReadnPixelsARB(out of bounds access:"
" bufSize (%d) is too small)", bufSize);
}
return;
}
if (_mesa_is_bufferobj(ctx->Pack.BufferObj) &&
_mesa_bufferobj_mapped(ctx->Pack.BufferObj)) {
/* buffer is mapped - that's an error */
_mesa_error(ctx, GL_INVALID_OPERATION, "glReadPixels(PBO is mapped)");
return;
}
ctx->Driver.ReadPixels(ctx, x, y, width, height,
format, type, &ctx->Pack, pixels);
}
GLboolean GLAPIENTRY
_mesa_UnmapBufferARB(GLenum target)
{
GET_CURRENT_CONTEXT(ctx);
struct gl_buffer_object *bufObj;
GLboolean status = GL_TRUE;
ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
bufObj = get_buffer(ctx, "glUnmapBufferARB", target);
if (!bufObj)
return GL_FALSE;
if (!_mesa_bufferobj_mapped(bufObj)) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glUnmapBufferARB");
return GL_FALSE;
}
#ifdef BOUNDS_CHECK
if (bufObj->Access != GL_READ_ONLY_ARB) {
GLubyte *buf = (GLubyte *) bufObj->Pointer;
GLuint i;
/* check that last 100 bytes are still = magic value */
for (i = 0; i < 100; i++) {
GLuint pos = bufObj->Size - i - 1;
if (buf[pos] != 123) {
_mesa_warning(ctx, "Out of bounds buffer object write detected"
" at position %d (value = %u)\n",
pos, buf[pos]);
}
}
}
#endif
#ifdef VBO_DEBUG
if (bufObj->AccessFlags & GL_MAP_WRITE_BIT) {
GLuint i, unchanged = 0;
GLubyte *b = (GLubyte *) bufObj->Pointer;
GLint pos = -1;
/* check which bytes changed */
for (i = 0; i < bufObj->Size - 1; i++) {
if (b[i] == (i & 0xff) && b[i+1] == ((i+1) & 0xff)) {
unchanged++;
if (pos == -1)
pos = i;
}
}
if (unchanged) {
printf("glUnmapBufferARB(%u): %u of %ld unchanged, starting at %d\n",
bufObj->Name, unchanged, bufObj->Size, pos);
}
}
#endif
status = ctx->Driver.UnmapBuffer( ctx, bufObj );
bufObj->AccessFlags = default_access_mode(ctx);
ASSERT(bufObj->Pointer == NULL);
ASSERT(bufObj->Offset == 0);
ASSERT(bufObj->Length == 0);
return status;
}
/**
* 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;
void *map;
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)", (long)offset);
return NULL;
}
if (length < 0) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glMapBufferRange(length = %ld)", (long)length);
return NULL;
}
if (access & ~(GL_MAP_READ_BIT |
GL_MAP_WRITE_BIT |
GL_MAP_INVALIDATE_RANGE_BIT |
GL_MAP_INVALIDATE_BUFFER_BIT |
GL_MAP_FLUSH_EXPLICIT_BIT |
GL_MAP_UNSYNCHRONIZED_BIT)) {
/* generate an error if any undefind bit is set */
_mesa_error(ctx, GL_INVALID_VALUE, "glMapBufferRange(access)");
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) &&
(access & (GL_MAP_INVALIDATE_RANGE_BIT |
GL_MAP_INVALIDATE_BUFFER_BIT |
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, "glMapBufferRange", target);
if (!bufObj)
return NULL;
if (offset + length > bufObj->Size) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glMapBufferRange(offset + length > size)");
return NULL;
}
if (_mesa_bufferobj_mapped(bufObj)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glMapBufferRange(buffer already mapped)");
return NULL;
}
if (!bufObj->Size) {
_mesa_error(ctx, GL_OUT_OF_MEMORY,
"glMapBufferRange(buffer size = 0)");
return NULL;
}
/* Mapping zero bytes should return a non-null pointer. */
if (!length) {
static long dummy = 0;
bufObj->Pointer = &dummy;
bufObj->Length = length;
bufObj->Offset = offset;
bufObj->AccessFlags = access;
return bufObj->Pointer;
}
ASSERT(ctx->Driver.MapBufferRange);
map = ctx->Driver.MapBufferRange(ctx, offset, length, access, bufObj);
if (!map) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glMapBufferARB(map failed)");
}
else {
/* The driver callback should have set all these fields.
* This is important because other modules (like VBO) might call
* the driver function directly.
*/
ASSERT(bufObj->Pointer == map);
ASSERT(bufObj->Length == length);
ASSERT(bufObj->Offset == offset);
ASSERT(bufObj->AccessFlags == access);
}
return map;
}
static void
replay_init( struct copy_context *copy )
{
struct gl_context *ctx = copy->ctx;
GLuint i;
GLuint offset;
const GLvoid *srcptr;
/* Make a list of varying attributes and their vbo's. Also
* calculate vertex size.
*/
copy->vertex_size = 0;
for (i = 0; i < VERT_ATTRIB_MAX; i++) {
struct gl_buffer_object *vbo = copy->array[i]->BufferObj;
if (copy->array[i]->StrideB == 0) {
copy->dstarray_ptr[i] = copy->array[i];
}
else {
GLuint j = copy->nr_varying++;
copy->varying[j].attr = i;
copy->varying[j].array = copy->array[i];
copy->varying[j].size = attr_size(copy->array[i]);
copy->vertex_size += attr_size(copy->array[i]);
if (_mesa_is_bufferobj(vbo) &&
!_mesa_bufferobj_mapped(vbo, MAP_INTERNAL))
ctx->Driver.MapBufferRange(ctx, 0, vbo->Size, GL_MAP_READ_BIT, vbo,
MAP_INTERNAL);
copy->varying[j].src_ptr =
ADD_POINTERS(vbo->Mappings[MAP_INTERNAL].Pointer,
copy->array[i]->Ptr);
copy->dstarray_ptr[i] = ©->varying[j].dstarray;
}
}
/* There must always be an index buffer. Currently require the
* caller convert non-indexed prims to indexed. Could alternately
* do it internally.
*/
if (_mesa_is_bufferobj(copy->ib->obj) &&
!_mesa_bufferobj_mapped(copy->ib->obj, MAP_INTERNAL))
ctx->Driver.MapBufferRange(ctx, 0, copy->ib->obj->Size, GL_MAP_READ_BIT,
copy->ib->obj, MAP_INTERNAL);
srcptr = (const GLubyte *)
ADD_POINTERS(copy->ib->obj->Mappings[MAP_INTERNAL].Pointer,
copy->ib->ptr);
switch (copy->ib->type) {
case GL_UNSIGNED_BYTE:
copy->translated_elt_buf = malloc(sizeof(GLuint) * copy->ib->count);
copy->srcelt = copy->translated_elt_buf;
for (i = 0; i < copy->ib->count; i++)
copy->translated_elt_buf[i] = ((const GLubyte *)srcptr)[i];
break;
case GL_UNSIGNED_SHORT:
copy->translated_elt_buf = malloc(sizeof(GLuint) * copy->ib->count);
copy->srcelt = copy->translated_elt_buf;
for (i = 0; i < copy->ib->count; i++)
copy->translated_elt_buf[i] = ((const GLushort *)srcptr)[i];
break;
case GL_UNSIGNED_INT:
copy->translated_elt_buf = NULL;
copy->srcelt = (const GLuint *)srcptr;
break;
}
/* Figure out the maximum allowed vertex buffer size:
*/
if (copy->vertex_size * copy->limits->max_verts <= copy->limits->max_vb_size) {
copy->dstbuf_size = copy->limits->max_verts;
}
else {
copy->dstbuf_size = copy->limits->max_vb_size / copy->vertex_size;
}
/* Allocate an output vertex buffer:
*
* XXX: This should be a VBO!
*/
copy->dstbuf = malloc(copy->dstbuf_size * copy->vertex_size);
copy->dstptr = copy->dstbuf;
/* Setup new vertex arrays to point into the output buffer:
*/
for (offset = 0, i = 0; i < copy->nr_varying; i++) {
const struct gl_client_array *src = copy->varying[i].array;
struct gl_client_array *dst = ©->varying[i].dstarray;
dst->Size = src->Size;
dst->Type = src->Type;
dst->Format = GL_RGBA;
dst->Stride = copy->vertex_size;
dst->StrideB = copy->vertex_size;
dst->Ptr = copy->dstbuf + offset;
dst->Enabled = GL_TRUE;
dst->Normalized = src->Normalized;
dst->Integer = src->Integer;
dst->BufferObj = ctx->Shared->NullBufferObj;
dst->_ElementSize = src->_ElementSize;
offset += copy->varying[i].size;
}
/* Allocate an output element list:
*/
copy->dstelt_size = MIN2(65536,
copy->ib->count * 2 + 3);
copy->dstelt_size = MIN2(copy->dstelt_size,
copy->limits->max_indices);
copy->dstelt = malloc(sizeof(GLuint) * copy->dstelt_size);
copy->dstelt_nr = 0;
/* Setup the new index buffer to point to the allocated element
* list:
*/
copy->dstib.count = 0; /* duplicates dstelt_nr */
copy->dstib.type = GL_UNSIGNED_INT;
copy->dstib.obj = ctx->Shared->NullBufferObj;
copy->dstib.ptr = copy->dstelt;
}
void * GLAPIENTRY
_mesa_MapBufferARB(GLenum target, GLenum access)
{
GET_CURRENT_CONTEXT(ctx);
struct gl_buffer_object * bufObj;
GLbitfield accessFlags;
void *map;
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:
accessFlags = GL_MAP_READ_BIT | GL_MAP_WRITE_BIT;
break;
default:
_mesa_error(ctx, GL_INVALID_ENUM, "glMapBufferARB(access)");
return NULL;
}
bufObj = get_buffer(ctx, "glMapBufferARB", target);
if (!bufObj)
return NULL;
if (_mesa_bufferobj_mapped(bufObj)) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glMapBufferARB(already mapped)");
return NULL;
}
if (!bufObj->Size) {
_mesa_error(ctx, GL_OUT_OF_MEMORY,
"glMapBuffer(buffer size = 0)");
return NULL;
}
ASSERT(ctx->Driver.MapBufferRange);
map = ctx->Driver.MapBufferRange(ctx, 0, bufObj->Size, accessFlags, bufObj);
if (!map) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glMapBufferARB(map failed)");
return NULL;
}
else {
/* The driver callback should have set these fields.
* This is important because other modules (like VBO) might call
* the driver function directly.
*/
ASSERT(bufObj->Pointer == map);
ASSERT(bufObj->Length == bufObj->Size);
ASSERT(bufObj->Offset == 0);
bufObj->AccessFlags = accessFlags;
}
if (access == GL_WRITE_ONLY_ARB || access == GL_READ_WRITE_ARB)
bufObj->Written = GL_TRUE;
#ifdef VBO_DEBUG
printf("glMapBufferARB(%u, sz %ld, access 0x%x)\n",
bufObj->Name, bufObj->Size, access);
if (access == GL_WRITE_ONLY_ARB) {
GLuint i;
GLubyte *b = (GLubyte *) bufObj->Pointer;
for (i = 0; i < bufObj->Size; i++)
b[i] = i & 0xff;
}
#endif
#ifdef BOUNDS_CHECK
{
GLubyte *buf = (GLubyte *) bufObj->Pointer;
GLuint i;
/* buffer is 100 bytes larger than requested, fill with magic value */
for (i = 0; i < 100; i++) {
buf[bufObj->Size - i - 1] = 123;
}
}
#endif
return bufObj->Pointer;
}
/**
* Do error checking for a glGetCompressedTexImage() call.
* \return GL_TRUE if any error, GL_FALSE if no errors.
*/
static GLboolean
getcompressedteximage_error_check(struct gl_context *ctx, GLenum target,
GLint level, GLsizei clientMemSize, GLvoid *img)
{
struct gl_texture_object *texObj;
struct gl_texture_image *texImage;
const GLint maxLevels = _mesa_max_texture_levels(ctx, target);
GLuint compressedSize;
if (!legal_getteximage_target(ctx, target)) {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImage(target=0x%x)",
target);
return GL_TRUE;
}
assert(maxLevels != 0);
if (level < 0 || level >= maxLevels) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glGetCompressedTexImageARB(bad level = %d)", level);
return GL_TRUE;
}
texObj = _mesa_get_current_tex_object(ctx, target);
if (!texObj) {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImageARB(target)");
return GL_TRUE;
}
texImage = _mesa_select_tex_image(ctx, texObj, target, level);
if (!texImage) {
/* probably invalid mipmap level */
_mesa_error(ctx, GL_INVALID_VALUE,
"glGetCompressedTexImageARB(level)");
return GL_TRUE;
}
if (!_mesa_is_format_compressed(texImage->TexFormat)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glGetCompressedTexImageARB(texture is not compressed)");
return GL_TRUE;
}
compressedSize = _mesa_format_image_size(texImage->TexFormat,
texImage->Width,
texImage->Height,
texImage->Depth);
if (!_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
/* do bounds checking on writing to client memory */
if (clientMemSize < compressedSize) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glGetnCompressedTexImageARB(out of bounds access:"
" bufSize (%d) is too small)", clientMemSize);
return GL_TRUE;
}
} else {
/* do bounds checking on PBO write */
if ((const GLubyte *) img + compressedSize >
(const GLubyte *) ctx->Pack.BufferObj->Size) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glGetCompressedTexImage(out of bounds PBO access)");
return GL_TRUE;
}
/* make sure PBO is not mapped */
if (_mesa_bufferobj_mapped(ctx->Pack.BufferObj)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glGetCompressedTexImage(PBO is mapped)");
return GL_TRUE;
}
}
return GL_FALSE;
}
void GLAPIENTRY
_mesa_BufferDataARB(GLenum target, GLsizeiptrARB size,
const GLvoid * data, GLenum usage)
{
GET_CURRENT_CONTEXT(ctx);
struct gl_buffer_object *bufObj;
ASSERT_OUTSIDE_BEGIN_END(ctx);
if (MESA_VERBOSE & VERBOSE_API)
_mesa_debug(ctx, "glBufferData(%s, %ld, %p, %s)\n",
_mesa_lookup_enum_by_nr(target),
(long int) size, data,
_mesa_lookup_enum_by_nr(usage));
if (size < 0) {
_mesa_error(ctx, GL_INVALID_VALUE, "glBufferDataARB(size < 0)");
return;
}
switch (usage) {
case GL_STREAM_DRAW_ARB:
case GL_STREAM_READ_ARB:
case GL_STREAM_COPY_ARB:
case GL_STATIC_DRAW_ARB:
case GL_STATIC_READ_ARB:
case GL_STATIC_COPY_ARB:
case GL_DYNAMIC_DRAW_ARB:
case GL_DYNAMIC_READ_ARB:
case GL_DYNAMIC_COPY_ARB:
/* OK */
break;
default:
_mesa_error(ctx, GL_INVALID_ENUM, "glBufferDataARB(usage)");
return;
}
bufObj = get_buffer(ctx, "glBufferDataARB", target);
if (!bufObj)
return;
if (_mesa_bufferobj_mapped(bufObj)) {
/* Unmap the existing buffer. We'll replace it now. Not an error. */
ctx->Driver.UnmapBuffer(ctx, bufObj);
bufObj->AccessFlags = default_access_mode(ctx);
ASSERT(bufObj->Pointer == NULL);
}
FLUSH_VERTICES(ctx, _NEW_BUFFER_OBJECT);
bufObj->Written = GL_TRUE;
#ifdef VBO_DEBUG
printf("glBufferDataARB(%u, sz %ld, from %p, usage 0x%x)\n",
bufObj->Name, size, data, usage);
#endif
#ifdef BOUNDS_CHECK
size += 100;
#endif
ASSERT(ctx->Driver.BufferData);
if (!ctx->Driver.BufferData( ctx, target, size, data, usage, bufObj )) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glBufferDataARB()");
}
}
/**
* Do error checking for a glGetTexImage() call.
* \return GL_TRUE if any error, GL_FALSE if no errors.
*/
static GLboolean
getteximage_error_check(GLcontext *ctx, GLenum target, GLint level,
GLenum format, GLenum type, GLvoid *pixels )
{
struct gl_texture_object *texObj;
struct gl_texture_image *texImage;
const GLuint maxLevels = _mesa_max_texture_levels(ctx, target);
GLenum baseFormat;
if (maxLevels == 0) {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(target=0x%x)", target);
return GL_TRUE;
}
if (level < 0 || level >= maxLevels) {
_mesa_error( ctx, GL_INVALID_VALUE, "glGetTexImage(level)" );
return GL_TRUE;
}
if (_mesa_sizeof_packed_type(type) <= 0) {
_mesa_error( ctx, GL_INVALID_ENUM, "glGetTexImage(type)" );
return GL_TRUE;
}
if (_mesa_components_in_format(format) <= 0 ||
format == GL_STENCIL_INDEX) {
_mesa_error( ctx, GL_INVALID_ENUM, "glGetTexImage(format)" );
return GL_TRUE;
}
if (!ctx->Extensions.EXT_paletted_texture && _mesa_is_index_format(format)) {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
return GL_TRUE;
}
if (!ctx->Extensions.ARB_depth_texture && _mesa_is_depth_format(format)) {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
return GL_TRUE;
}
if (!ctx->Extensions.MESA_ycbcr_texture && _mesa_is_ycbcr_format(format)) {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
return GL_TRUE;
}
if (!ctx->Extensions.EXT_packed_depth_stencil
&& _mesa_is_depthstencil_format(format)) {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
return GL_TRUE;
}
if (!ctx->Extensions.ATI_envmap_bumpmap
&& _mesa_is_dudv_format(format)) {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
return GL_TRUE;
}
texObj = _mesa_get_current_tex_object(ctx, target);
if (!texObj || _mesa_is_proxy_texture(target)) {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(target)");
return GL_TRUE;
}
texImage = _mesa_select_tex_image(ctx, texObj, target, level);
if (!texImage) {
/* out of memory */
return GL_TRUE;
}
baseFormat = _mesa_get_format_base_format(texImage->TexFormat);
/* Make sure the requested image format is compatible with the
* texture's format. Note that a color index texture can be converted
* to RGBA so that combo is allowed.
*/
if (_mesa_is_color_format(format)
&& !_mesa_is_color_format(baseFormat)
&& !_mesa_is_index_format(baseFormat)) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
return GL_TRUE;
}
else if (_mesa_is_index_format(format)
&& !_mesa_is_index_format(baseFormat)) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
return GL_TRUE;
}
else if (_mesa_is_depth_format(format)
&& !_mesa_is_depth_format(baseFormat)
&& !_mesa_is_depthstencil_format(baseFormat)) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
return GL_TRUE;
}
else if (_mesa_is_ycbcr_format(format)
&& !_mesa_is_ycbcr_format(baseFormat)) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
return GL_TRUE;
}
else if (_mesa_is_depthstencil_format(format)
&& !_mesa_is_depthstencil_format(baseFormat)) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
return GL_TRUE;
}
else if (_mesa_is_dudv_format(format)
&& !_mesa_is_dudv_format(baseFormat)) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
return GL_TRUE;
}
if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
/* packing texture image into a PBO */
const GLuint dimensions = (target == GL_TEXTURE_3D) ? 3 : 2;
if (!_mesa_validate_pbo_access(dimensions, &ctx->Pack, texImage->Width,
texImage->Height, texImage->Depth,
format, type, pixels)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glGetTexImage(out of bounds PBO write)");
return GL_TRUE;
}
/* PBO should not be mapped */
if (_mesa_bufferobj_mapped(ctx->Pack.BufferObj)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glGetTexImage(PBO is mapped)");
return GL_TRUE;
}
}
return GL_FALSE;
}