static void GLAPIENTRY
_mesa_GetnPixelMapuivARB( GLenum map, GLsizei bufSize, GLuint *values )
{
GET_CURRENT_CONTEXT(ctx);
GLint mapsize, i;
const struct gl_pixelmap *pm;
ASSERT_OUTSIDE_BEGIN_END(ctx);
pm = get_pixelmap(ctx, map);
if (!pm) {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetPixelMapuiv(map)");
return;
}
mapsize = pm->Size;
if (!validate_pbo_access(ctx, &ctx->Pack, mapsize, GL_INTENSITY,
GL_UNSIGNED_INT, bufSize, values)) {
return;
}
values = (GLuint *) _mesa_map_pbo_dest(ctx, &ctx->Pack, values);
if (!values) {
if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glGetPixelMapuiv(PBO is mapped)");
}
return;
}
if (map == GL_PIXEL_MAP_S_TO_S) {
/* special case */
memcpy(values, ctx->PixelMaps.StoS.Map, mapsize * sizeof(GLint));
}
else {
for (i = 0; i < mapsize; i++) {
values[i] = FLOAT_TO_UINT( pm->Map[i] );
}
}
_mesa_unmap_pbo_dest(ctx, &ctx->Pack);
}
static void
intel_get_tex_sub_image(struct gl_context *ctx,
GLint xoffset, GLint yoffset, GLint zoffset,
GLsizei width, GLsizei height, GLint depth,
GLenum format, GLenum type, GLvoid *pixels,
struct gl_texture_image *texImage)
{
struct brw_context *brw = brw_context(ctx);
bool ok;
DBG("%s\n", __func__);
if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
if (_mesa_meta_pbo_GetTexSubImage(ctx, 3, texImage,
xoffset, yoffset, zoffset,
width, height, depth, format, type,
pixels, &ctx->Pack)) {
/* Flush to guarantee coherency between the render cache and other
* caches the PBO could potentially be bound to after this point.
* See the related comment in intelReadPixels() for a more detailed
* explanation.
*/
brw_emit_mi_flush(brw);
return;
}
perf_debug("%s: fallback to CPU mapping in PBO case\n", __func__);
}
ok = intel_gettexsubimage_tiled_memcpy(ctx, texImage, xoffset, yoffset,
width, height,
format, type, pixels, &ctx->Pack);
if(ok)
return;
_mesa_meta_GetTexSubImage(ctx, xoffset, yoffset, zoffset,
width, height, depth,
format, type, pixels, texImage);
DBG("%s - DONE\n", __func__);
}
/**
* Examine the active arrays to determine if we have interleaved
* vertex arrays all living in one VBO, or all living in user space.
*/
static GLboolean
is_interleaved_arrays(const struct st_vertex_program *vp,
const struct st_vp_variant *vpv,
const struct gl_client_array **arrays)
{
GLuint attr;
const struct gl_buffer_object *firstBufObj = NULL;
GLint firstStride = -1;
const GLubyte *firstPtr = NULL;
GLboolean userSpaceBuffer = GL_FALSE;
for (attr = 0; attr < vpv->num_inputs; attr++) {
const GLuint mesaAttr = vp->index_to_input[attr];
const struct gl_client_array *array = arrays[mesaAttr];
const struct gl_buffer_object *bufObj = array->BufferObj;
const GLsizei stride = array->StrideB; /* in bytes */
if (attr == 0) {
/* save info about the first array */
firstStride = stride;
firstPtr = array->Ptr;
firstBufObj = bufObj;
userSpaceBuffer = !bufObj || !bufObj->Name;
}
else {
/* check if other arrays interleave with the first, in same buffer */
if (stride != firstStride)
return GL_FALSE; /* strides don't match */
if (bufObj != firstBufObj)
return GL_FALSE; /* arrays in different VBOs */
if (abs(array->Ptr - firstPtr) > firstStride)
return GL_FALSE; /* arrays start too far apart */
if ((!_mesa_is_bufferobj(bufObj)) != userSpaceBuffer)
return GL_FALSE; /* mix of VBO and user-space arrays */
}
}
return GL_TRUE;
}
/**
* Get texture image. Called by glGetTexImage.
*
* \param target texture target.
* \param level image level.
* \param format pixel data format for returned image.
* \param type pixel data type for returned image.
* \param bufSize size of the pixels data buffer.
* \param pixels returned pixel data.
*/
void GLAPIENTRY
_mesa_GetnTexImageARB( GLenum target, GLint level, GLenum format,
GLenum type, GLsizei bufSize, GLvoid *pixels )
{
struct gl_texture_object *texObj;
struct gl_texture_image *texImage;
GET_CURRENT_CONTEXT(ctx);
FLUSH_VERTICES(ctx, 0);
if (getteximage_error_check(ctx, target, level, format, type,
bufSize, pixels)) {
return;
}
if (!_mesa_is_bufferobj(ctx->Pack.BufferObj) && !pixels) {
/* not an error, do nothing */
return;
}
texObj = _mesa_get_current_tex_object(ctx, target);
texImage = _mesa_select_tex_image(ctx, texObj, target, level);
if (_mesa_is_zero_size_texture(texImage))
return;
if (MESA_VERBOSE & (VERBOSE_API | VERBOSE_TEXTURE)) {
_mesa_debug(ctx, "glGetTexImage(tex %u) format = %s, w=%d, h=%d,"
" dstFmt=0x%x, dstType=0x%x\n",
texObj->Name,
_mesa_get_format_name(texImage->TexFormat),
texImage->Width, texImage->Height,
format, type);
}
_mesa_lock_texture(ctx, texObj);
{
ctx->Driver.GetTexImage(ctx, format, type, pixels, texImage);
}
_mesa_unlock_texture(ctx, texObj);
}
/**
* Check that element 'j' of the array has reasonable data.
* Map VBO if needed.
* For debugging purposes; not normally used.
*/
static void
check_array_data(struct gl_context *ctx, struct gl_client_array *array,
GLuint attrib, GLuint j)
{
if (array->Enabled) {
const void *data = array->Ptr;
if (_mesa_is_bufferobj(array->BufferObj)) {
if (!array->BufferObj->Pointer) {
/* need to map now */
array->BufferObj->Pointer =
ctx->Driver.MapBufferRange(ctx, 0, array->BufferObj->Size,
GL_MAP_READ_BIT, array->BufferObj);
}
data = ADD_POINTERS(data, array->BufferObj->Pointer);
}
switch (array->Type) {
case GL_FLOAT:
{
GLfloat *f = (GLfloat *) ((GLubyte *) data + array->StrideB * j);
GLint k;
for (k = 0; k < array->Size; k++) {
if (IS_INF_OR_NAN(f[k]) ||
f[k] >= 1.0e20 || f[k] <= -1.0e10) {
printf("Bad array data:\n");
printf(" Element[%u].%u = %f\n", j, k, f[k]);
printf(" Array %u at %p\n", attrib, (void* ) array);
printf(" Type 0x%x, Size %d, Stride %d\n",
array->Type, array->Size, array->Stride);
printf(" Address/offset %p in Buffer Object %u\n",
array->Ptr, array->BufferObj->Name);
f[k] = 1.0; /* XXX replace the bad value! */
}
/*assert(!IS_INF_OR_NAN(f[k]));*/
}
}
break;
default:
;
}
}
}
/** Implements glGetnCompressedTexImageARB, glGetCompressedTexImage, and
* glGetCompressedTextureImage.
*
* texImage must be passed in because glGetCompressedTexImage must handle the
* target GL_TEXTURE_CUBE_MAP.
*/
void
_mesa_get_compressed_texture_image(struct gl_context *ctx,
struct gl_texture_object *texObj,
struct gl_texture_image *texImage,
GLenum target, GLint level,
GLsizei bufSize, GLvoid *pixels,
bool dsa)
{
assert(texObj);
assert(texImage);
FLUSH_VERTICES(ctx, 0);
if (getcompressedteximage_error_check(ctx, texImage, target, level,
bufSize, pixels, dsa)) {
return;
}
if (!_mesa_is_bufferobj(ctx->Pack.BufferObj) && !pixels) {
/* not an error, do nothing */
return;
}
if (_mesa_is_zero_size_texture(texImage))
return;
if (MESA_VERBOSE & (VERBOSE_API | VERBOSE_TEXTURE)) {
_mesa_debug(ctx,
"glGetCompressedTex%sImage(tex %u) format = %s, w=%d, h=%d\n",
dsa ? "ture" : "", texObj->Name,
_mesa_get_format_name(texImage->TexFormat),
texImage->Width, texImage->Height);
}
_mesa_lock_texture(ctx, texObj);
{
ctx->Driver.GetCompressedTexImage(ctx, texImage, pixels);
}
_mesa_unlock_texture(ctx, texObj);
}
static void GLAPIENTRY
_mesa_PixelMapfv( GLenum map, GLsizei mapsize, const GLfloat *values )
{
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
/* XXX someday, test against ctx->Const.MaxPixelMapTableSize */
if (mapsize < 1 || mapsize > MAX_PIXEL_MAP_TABLE) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapfv(mapsize)" );
return;
}
if (map >= GL_PIXEL_MAP_S_TO_S && map <= GL_PIXEL_MAP_I_TO_A) {
/* test that mapsize is a power of two */
if (!_mesa_is_pow_two(mapsize)) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapfv(mapsize)" );
return;
}
}
FLUSH_VERTICES(ctx, _NEW_PIXEL);
if (!validate_pbo_access(ctx, &ctx->Unpack, mapsize, GL_INTENSITY,
GL_FLOAT, INT_MAX, values)) {
return;
}
values = (const GLfloat *) _mesa_map_pbo_source(ctx, &ctx->Unpack, values);
if (!values) {
if (_mesa_is_bufferobj(ctx->Unpack.BufferObj)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glPixelMapfv(PBO is mapped)");
}
return;
}
store_pixelmap(ctx, map, mapsize, values);
_mesa_unmap_pbo_source(ctx, &ctx->Unpack);
}
void
intelReadPixels(struct gl_context * ctx,
GLint x, GLint y, GLsizei width, GLsizei height,
GLenum format, GLenum type,
const struct gl_pixelstore_attrib *pack, GLvoid * pixels)
{
struct brw_context *brw = brw_context(ctx);
bool dirty;
DBG("%s\n", __FUNCTION__);
if (_mesa_is_bufferobj(pack->BufferObj)) {
/* Using PBOs, so try the BLT based path. */
if (do_blit_readpixels(ctx, x, y, width, height, format, type, pack,
pixels)) {
return;
}
perf_debug("%s: fallback to CPU mapping in PBO case\n", __FUNCTION__);
}
/* glReadPixels() wont dirty the front buffer, so reset the dirty
* flag after calling intel_prepare_render(). */
dirty = brw->front_buffer_dirty;
intel_prepare_render(brw);
brw->front_buffer_dirty = dirty;
/* Update Mesa state before calling _mesa_readpixels().
* XXX this may not be needed since ReadPixels no longer uses the
* span code.
*/
if (ctx->NewState)
_mesa_update_state(ctx);
_mesa_readpixels(ctx, x, y, width, height, format, type, pack, pixels);
/* There's an intel_prepare_render() call in intelSpanRenderStart(). */
brw->front_buffer_dirty = dirty;
}
/**
* Find the max index in the given element/index buffer
*/
GLuint
_mesa_max_buffer_index(struct gl_context *ctx, GLuint count, GLenum type,
const void *indices,
struct gl_buffer_object *elementBuf)
{
const GLubyte *map = NULL;
GLuint max = 0;
GLuint i;
if (_mesa_is_bufferobj(elementBuf)) {
/* elements are in a user-defined buffer object. need to map it */
map = ctx->Driver.MapBufferRange(ctx, 0, elementBuf->Size,
GL_MAP_READ_BIT, elementBuf);
/* Actual address is the sum of pointers */
indices = (const GLvoid *) ADD_POINTERS(map, (const GLubyte *) indices);
}
if (type == GL_UNSIGNED_INT) {
for (i = 0; i < count; i++)
if (((GLuint *) indices)[i] > max)
max = ((GLuint *) indices)[i];
}
else if (type == GL_UNSIGNED_SHORT) {
for (i = 0; i < count; i++)
if (((GLushort *) indices)[i] > max)
max = ((GLushort *) indices)[i];
}
else {
ASSERT(type == GL_UNSIGNED_BYTE);
for (i = 0; i < count; i++)
if (((GLubyte *) indices)[i] > max)
max = ((GLubyte *) indices)[i];
}
if (map) {
ctx->Driver.UnmapBuffer(ctx, elementBuf);
}
return max;
}
static inline GLboolean
valid_draw_indirect_elements(struct gl_context *ctx,
GLenum mode, GLenum type, const GLvoid *indirect,
GLsizeiptr size, const char *name)
{
if (!valid_elements_type(ctx, type, name))
return GL_FALSE;
/*
* Unlike regular DrawElementsInstancedBaseVertex commands, the indices
* may not come from a client array and must come from an index buffer.
* If no element array buffer is bound, an INVALID_OPERATION error is
* generated.
*/
if (!_mesa_is_bufferobj(ctx->Array.VAO->IndexBufferObj)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"%s(no buffer bound to GL_ELEMENT_ARRAY_BUFFER)", name);
return GL_FALSE;
}
return valid_draw_indirect(ctx, mode, indirect, size, name);
}
/**
* Error checking for glMultiDrawElements(). Includes parameter checking
* and VBO bounds checking.
* \return GL_TRUE if OK to render, GL_FALSE if error found
*/
GLboolean
_mesa_validate_MultiDrawElements(struct gl_context *ctx,
GLenum mode, const GLsizei *count,
GLenum type, const GLvoid * const *indices,
GLuint primcount)
{
unsigned i;
FLUSH_CURRENT(ctx, 0);
for (i = 0; i < primcount; i++) {
if (count[i] < 0) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glMultiDrawElements(count)" );
return GL_FALSE;
}
}
if (!_mesa_valid_prim_mode(ctx, mode, "glMultiDrawElements")) {
return GL_FALSE;
}
if (!valid_elements_type(ctx, type, "glMultiDrawElements"))
return GL_FALSE;
if (!check_valid_to_render(ctx, "glMultiDrawElements"))
return GL_FALSE;
/* Not using a VBO for indices, so avoid NULL pointer derefs later.
*/
if (!_mesa_is_bufferobj(ctx->Array.VAO->IndexBufferObj)) {
for (i = 0; i < primcount; i++) {
if (!indices[i])
return GL_FALSE;
}
}
return GL_TRUE;
}
void GLAPIENTRY
_mesa_GetnCompressedTexImageARB(GLenum target, GLint level, GLsizei bufSize,
GLvoid *img)
{
struct gl_texture_object *texObj;
struct gl_texture_image *texImage;
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
if (getcompressedteximage_error_check(ctx, target, level, bufSize, img)) {
return;
}
if (!_mesa_is_bufferobj(ctx->Pack.BufferObj) && !img) {
/* not an error, do nothing */
return;
}
texObj = _mesa_get_current_tex_object(ctx, target);
texImage = _mesa_select_tex_image(ctx, texObj, target, level);
if (_mesa_is_zero_size_texture(texImage))
return;
if (MESA_VERBOSE & (VERBOSE_API | VERBOSE_TEXTURE)) {
_mesa_debug(ctx,
"glGetCompressedTexImage(tex %u) format = %s, w=%d, h=%d\n",
texObj->Name,
_mesa_get_format_name(texImage->TexFormat),
texImage->Width, texImage->Height);
}
_mesa_lock_texture(ctx, texObj);
{
ctx->Driver.GetCompressedTexImage(ctx, texImage, img);
}
_mesa_unlock_texture(ctx, texObj);
}
/* Could do better by copying the arrays and element list intact and
* then emitting an indexed prim at runtime.
*/
static void GLAPIENTRY _save_OBE_DrawElements(GLenum mode, GLsizei count, GLenum type,
const GLvoid *indices)
{
GET_CURRENT_CONTEXT(ctx);
GLint i;
if (!_mesa_validate_DrawElements( ctx, mode, count, type, indices, 0 ))
return;
_ae_map_vbos( ctx );
if (_mesa_is_bufferobj(ctx->Array.ElementArrayBufferObj))
indices = ADD_POINTERS(ctx->Array.ElementArrayBufferObj->Pointer, indices);
vbo_save_NotifyBegin( ctx, mode | VBO_SAVE_PRIM_WEAK );
switch (type) {
case GL_UNSIGNED_BYTE:
for (i = 0 ; i < count ; i++)
CALL_ArrayElement(GET_DISPATCH(), ( ((GLubyte *)indices)[i] ));
break;
case GL_UNSIGNED_SHORT:
for (i = 0 ; i < count ; i++)
CALL_ArrayElement(GET_DISPATCH(), ( ((GLushort *)indices)[i] ));
break;
case GL_UNSIGNED_INT:
for (i = 0 ; i < count ; i++)
CALL_ArrayElement(GET_DISPATCH(), ( ((GLuint *)indices)[i] ));
break;
default:
_mesa_error( ctx, GL_INVALID_ENUM, "glDrawElements(type)" );
break;
}
CALL_End(GET_DISPATCH(), ());
_ae_unmap_vbos( ctx );
}
/**
* For commands that write to a PBO (glReadPixels, glGetColorTable, etc),
* if we're writing to a PBO, map it write-only and return the pointer
* into the PBO. If we're not writing to a PBO, return \p dst as-is.
* If non-null return, must call _mesa_unmap_pbo_dest() when done.
*
* \return NULL if error, else pointer to start of data
*/
void *
_mesa_map_pbo_dest(struct gl_context *ctx,
const struct gl_pixelstore_attrib *pack,
GLvoid *dest)
{
void *buf;
if (_mesa_is_bufferobj(pack->BufferObj)) {
/* pack into PBO */
buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT,
GL_WRITE_ONLY_ARB,
pack->BufferObj);
if (!buf)
return NULL;
buf = ADD_POINTERS(buf, dest);
}
else {
/* pack to normal memory */
buf = dest;
}
return buf;
}
/**
* For commands that read from a PBO (glDrawPixels, glTexImage,
* glPolygonStipple, etc), if we're reading from a PBO, map it read-only
* and return the pointer into the PBO. If we're not reading from a
* PBO, return \p src as-is.
* If non-null return, must call _mesa_unmap_pbo_source() when done.
*
* \return NULL if error, else pointer to start of data
*/
const GLvoid *
_mesa_map_pbo_source(struct gl_context *ctx,
const struct gl_pixelstore_attrib *unpack,
const GLvoid *src)
{
const GLubyte *buf;
if (_mesa_is_bufferobj(unpack->BufferObj)) {
/* unpack from PBO */
buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
GL_READ_ONLY_ARB,
unpack->BufferObj);
if (!buf)
return NULL;
buf = ADD_POINTERS(buf, src);
}
else {
/* unpack from normal memory */
buf = src;
}
return buf;
}
/**
* Inner support for both _mesa_MultiDrawElements() and
* _mesa_MultiDrawRangeElements().
* This does the actual rendering after we've checked array indexes, etc.
*/
static void
vbo_validated_multidrawelements(struct gl_context *ctx, GLenum mode,
const GLsizei *count, GLenum type,
const GLvoid * const *indices,
GLsizei primcount,
const GLint *basevertex)
{
struct vbo_context *vbo = vbo_context(ctx);
struct vbo_exec_context *exec = &vbo->exec;
struct _mesa_index_buffer ib;
struct _mesa_prim *prim;
unsigned int index_type_size = vbo_sizeof_ib_type(type);
uintptr_t min_index_ptr, max_index_ptr;
GLboolean fallback = GL_FALSE;
int i;
if (primcount == 0)
return;
prim = calloc(1, primcount * sizeof(*prim));
if (prim == NULL) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glMultiDrawElements");
return;
}
vbo_bind_arrays(ctx);
min_index_ptr = (uintptr_t)indices[0];
max_index_ptr = 0;
for (i = 0; i < primcount; i++) {
min_index_ptr = MIN2(min_index_ptr, (uintptr_t)indices[i]);
max_index_ptr = MAX2(max_index_ptr, (uintptr_t)indices[i] +
index_type_size * count[i]);
}
/* Check if we can handle this thing as a bunch of index offsets from the
* same index pointer. If we can't, then we have to fall back to doing
* a draw_prims per primitive.
* Check that the difference between each prim's indexes is a multiple of
* the index/element size.
*/
if (index_type_size != 1) {
for (i = 0; i < primcount; i++) {
if ((((uintptr_t)indices[i] - min_index_ptr) % index_type_size) != 0) {
fallback = GL_TRUE;
break;
}
}
}
/* If the index buffer isn't in a VBO, then treating the application's
* subranges of the index buffer as one large index buffer may lead to
* us reading unmapped memory.
*/
if (!_mesa_is_bufferobj(ctx->Array.ArrayObj->ElementArrayBufferObj))
fallback = GL_TRUE;
if (!fallback) {
ib.count = (max_index_ptr - min_index_ptr) / index_type_size;
ib.type = type;
ib.obj = ctx->Array.ArrayObj->ElementArrayBufferObj;
ib.ptr = (void *)min_index_ptr;
for (i = 0; i < primcount; i++) {
prim[i].begin = (i == 0);
prim[i].end = (i == primcount - 1);
prim[i].weak = 0;
prim[i].pad = 0;
prim[i].mode = mode;
prim[i].start = ((uintptr_t)indices[i] - min_index_ptr) / index_type_size;
prim[i].count = count[i];
prim[i].indexed = 1;
prim[i].num_instances = 1;
prim[i].base_instance = 0;
if (basevertex != NULL)
prim[i].basevertex = basevertex[i];
else
prim[i].basevertex = 0;
}
check_buffers_are_unmapped(exec->array.inputs);
vbo_handle_primitive_restart(ctx, prim, primcount, &ib,
GL_FALSE, ~0, ~0);
} else {
/* render one prim at a time */
for (i = 0; i < primcount; i++) {
ib.count = count[i];
ib.type = type;
ib.obj = ctx->Array.ArrayObj->ElementArrayBufferObj;
ib.ptr = indices[i];
prim[0].begin = 1;
prim[0].end = 1;
prim[0].weak = 0;
prim[0].pad = 0;
prim[0].mode = mode;
prim[0].start = 0;
prim[0].count = count[i];
prim[0].indexed = 1;
prim[0].num_instances = 1;
prim[0].base_instance = 0;
if (basevertex != NULL)
prim[0].basevertex = basevertex[i];
else
prim[0].basevertex = 0;
check_buffers_are_unmapped(exec->array.inputs);
vbo_handle_primitive_restart(ctx, prim, 1, &ib,
GL_FALSE, ~0, ~0);
}
}
free(prim);
if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH) {
_mesa_flush(ctx);
}
}
/**
* Execute the buffer and save copied verts.
* \param keep_unmapped if true, leave the VBO unmapped when we're done.
*/
void
vbo_exec_vtx_flush(struct vbo_exec_context *exec, GLboolean keepUnmapped)
{
if (0)
vbo_exec_debug_verts( exec );
if (exec->vtx.prim_count &&
exec->vtx.vert_count) {
exec->vtx.copied.nr = vbo_copy_vertices( exec );
if (exec->vtx.copied.nr != exec->vtx.vert_count) {
struct gl_context *ctx = exec->ctx;
/* Before the update_state() as this may raise _NEW_ARRAY
* from _mesa_set_varying_vp_inputs().
*/
vbo_exec_bind_arrays( ctx );
if (ctx->NewState)
_mesa_update_state( ctx );
if (_mesa_is_bufferobj(exec->vtx.bufferobj)) {
vbo_exec_vtx_unmap( exec );
}
if (0)
printf("%s %d %d\n", __FUNCTION__, exec->vtx.prim_count,
exec->vtx.vert_count);
vbo_context(ctx)->draw_prims( ctx,
exec->vtx.inputs,
exec->vtx.prim,
exec->vtx.prim_count,
NULL,
GL_TRUE,
0,
exec->vtx.vert_count - 1,
NULL);
/* If using a real VBO, get new storage -- unless asked not to.
*/
if (_mesa_is_bufferobj(exec->vtx.bufferobj) && !keepUnmapped) {
vbo_exec_vtx_map( exec );
}
}
}
/* May have to unmap explicitly if we didn't draw:
*/
if (keepUnmapped &&
_mesa_is_bufferobj(exec->vtx.bufferobj) &&
exec->vtx.buffer_map) {
vbo_exec_vtx_unmap( exec );
}
if (keepUnmapped || exec->vtx.vertex_size == 0)
exec->vtx.max_vert = 0;
else
exec->vtx.max_vert = ((VBO_VERT_BUFFER_SIZE - exec->vtx.buffer_used) /
(exec->vtx.vertex_size * sizeof(GLfloat)));
exec->vtx.buffer_ptr = exec->vtx.buffer_map;
exec->vtx.prim_count = 0;
exec->vtx.vert_count = 0;
}
/**
* Map the vertex buffer to begin storing glVertex, glColor, etc data.
*/
void
vbo_exec_vtx_map( struct vbo_exec_context *exec )
{
struct gl_context *ctx = exec->ctx;
const GLenum accessRange = GL_MAP_WRITE_BIT | /* for MapBufferRange */
GL_MAP_INVALIDATE_RANGE_BIT |
GL_MAP_UNSYNCHRONIZED_BIT |
GL_MAP_FLUSH_EXPLICIT_BIT |
MESA_MAP_NOWAIT_BIT;
const GLenum usage = GL_STREAM_DRAW_ARB;
if (!_mesa_is_bufferobj(exec->vtx.bufferobj))
return;
assert(!exec->vtx.buffer_map);
assert(!exec->vtx.buffer_ptr);
if (VBO_VERT_BUFFER_SIZE > exec->vtx.buffer_used + 1024) {
/* The VBO exists and there's room for more */
if (exec->vtx.bufferobj->Size > 0) {
exec->vtx.buffer_map =
(GLfloat *)ctx->Driver.MapBufferRange(ctx,
exec->vtx.buffer_used,
(VBO_VERT_BUFFER_SIZE -
exec->vtx.buffer_used),
accessRange,
exec->vtx.bufferobj);
exec->vtx.buffer_ptr = exec->vtx.buffer_map;
}
else {
exec->vtx.buffer_ptr = exec->vtx.buffer_map = NULL;
}
}
if (!exec->vtx.buffer_map) {
/* Need to allocate a new VBO */
exec->vtx.buffer_used = 0;
if (ctx->Driver.BufferData(ctx, GL_ARRAY_BUFFER_ARB,
VBO_VERT_BUFFER_SIZE,
NULL, usage, exec->vtx.bufferobj)) {
/* buffer allocation worked, now map the buffer */
exec->vtx.buffer_map =
(GLfloat *)ctx->Driver.MapBufferRange(ctx,
0, VBO_VERT_BUFFER_SIZE,
accessRange,
exec->vtx.bufferobj);
}
else {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "VBO allocation");
exec->vtx.buffer_map = NULL;
}
}
exec->vtx.buffer_ptr = exec->vtx.buffer_map;
if (!exec->vtx.buffer_map) {
/* out of memory */
_mesa_install_exec_vtxfmt( ctx, &exec->vtxfmt_noop );
}
else {
if (_mesa_using_noop_vtxfmt(ctx->Exec)) {
/* The no-op functions are installed so switch back to regular
* functions. We do this test just to avoid frequent and needless
* calls to _mesa_install_exec_vtxfmt().
*/
_mesa_install_exec_vtxfmt(ctx, &exec->vtxfmt);
}
}
if (0)
printf("map %d..\n", exec->vtx.buffer_used);
}
/* TODO: populate these as the vertex is defined:
*/
static void
vbo_exec_bind_arrays( struct gl_context *ctx )
{
struct vbo_context *vbo = vbo_context(ctx);
struct vbo_exec_context *exec = &vbo->exec;
struct gl_client_array *arrays = exec->vtx.arrays;
const GLuint count = exec->vtx.vert_count;
const GLuint *map;
GLuint attr;
GLbitfield64 varying_inputs = 0x0;
/* Install the default (ie Current) attributes first, then overlay
* all active ones.
*/
switch (get_program_mode(exec->ctx)) {
case VP_NONE:
for (attr = 0; attr < VERT_ATTRIB_FF_MAX; attr++) {
exec->vtx.inputs[attr] = &vbo->legacy_currval[attr];
}
for (attr = 0; attr < MAT_ATTRIB_MAX; attr++) {
ASSERT(VERT_ATTRIB_GENERIC(attr) < Elements(exec->vtx.inputs));
exec->vtx.inputs[VERT_ATTRIB_GENERIC(attr)] = &vbo->mat_currval[attr];
}
map = vbo->map_vp_none;
break;
case VP_NV:
case VP_ARB:
/* The aliasing of attributes for NV vertex programs has already
* occurred. NV vertex programs cannot access material values,
* nor attributes greater than VERT_ATTRIB_TEX7.
*/
for (attr = 0; attr < VERT_ATTRIB_FF_MAX; attr++) {
exec->vtx.inputs[attr] = &vbo->legacy_currval[attr];
}
for (attr = 0; attr < VERT_ATTRIB_GENERIC_MAX; attr++) {
ASSERT(VERT_ATTRIB_GENERIC(attr) < Elements(exec->vtx.inputs));
exec->vtx.inputs[VERT_ATTRIB_GENERIC(attr)] = &vbo->generic_currval[attr];
}
map = vbo->map_vp_arb;
/* check if VERT_ATTRIB_POS is not read but VERT_BIT_GENERIC0 is read.
* In that case we effectively need to route the data from
* glVertexAttrib(0, val) calls to feed into the GENERIC0 input.
*/
if ((ctx->VertexProgram._Current->Base.InputsRead & VERT_BIT_POS) == 0 &&
(ctx->VertexProgram._Current->Base.InputsRead & VERT_BIT_GENERIC0)) {
exec->vtx.inputs[VERT_ATTRIB_GENERIC0] = exec->vtx.inputs[0];
exec->vtx.attrsz[VERT_ATTRIB_GENERIC0] = exec->vtx.attrsz[0];
exec->vtx.attrptr[VERT_ATTRIB_GENERIC0] = exec->vtx.attrptr[0];
exec->vtx.attrsz[0] = 0;
}
break;
default:
assert(0);
}
/* Make all active attributes (including edgeflag) available as
* arrays of floats.
*/
for (attr = 0; attr < VERT_ATTRIB_MAX ; attr++) {
const GLuint src = map[attr];
if (exec->vtx.attrsz[src]) {
GLsizeiptr offset = (GLbyte *)exec->vtx.attrptr[src] -
(GLbyte *)exec->vtx.vertex;
/* override the default array set above */
ASSERT(attr < Elements(exec->vtx.inputs));
ASSERT(attr < Elements(exec->vtx.arrays)); /* arrays[] */
exec->vtx.inputs[attr] = &arrays[attr];
if (_mesa_is_bufferobj(exec->vtx.bufferobj)) {
/* a real buffer obj: Ptr is an offset, not a pointer*/
assert(exec->vtx.bufferobj->Pointer); /* buf should be mapped */
assert(offset >= 0);
arrays[attr].Ptr = (GLubyte *)exec->vtx.bufferobj->Offset + offset;
}
else {
/* Ptr into ordinary app memory */
arrays[attr].Ptr = (GLubyte *)exec->vtx.buffer_map + offset;
}
arrays[attr].Size = exec->vtx.attrsz[src];
arrays[attr].StrideB = exec->vtx.vertex_size * sizeof(GLfloat);
arrays[attr].Stride = exec->vtx.vertex_size * sizeof(GLfloat);
arrays[attr].Type = GL_FLOAT;
arrays[attr].Format = GL_RGBA;
arrays[attr].Enabled = 1;
arrays[attr]._ElementSize = arrays[attr].Size * sizeof(GLfloat);
_mesa_reference_buffer_object(ctx,
&arrays[attr].BufferObj,
exec->vtx.bufferobj);
arrays[attr]._MaxElement = count; /* ??? */
varying_inputs |= VERT_BIT(attr);
ctx->NewState |= _NEW_ARRAY;
}
}
_mesa_set_varying_vp_inputs( ctx, varying_inputs );
}
static void brw_upload_indices(struct brw_context *brw)
{
struct gl_context *ctx = &brw->ctx;
const struct _mesa_index_buffer *index_buffer = brw->ib.ib;
GLuint ib_size;
drm_intel_bo *old_bo = brw->ib.bo;
struct gl_buffer_object *bufferobj;
GLuint offset;
GLuint ib_type_size;
if (index_buffer == NULL)
return;
ib_type_size = _mesa_sizeof_type(index_buffer->type);
ib_size = ib_type_size * index_buffer->count;
bufferobj = index_buffer->obj;
/* Turn into a proper VBO:
*/
if (!_mesa_is_bufferobj(bufferobj)) {
/* Get new bufferobj, offset:
*/
intel_upload_data(brw, index_buffer->ptr, ib_size, ib_type_size,
&brw->ib.bo, &offset);
} else {
offset = (GLuint) (unsigned long) index_buffer->ptr;
/* If the index buffer isn't aligned to its element size, we have to
* rebase it into a temporary.
*/
if ((ib_type_size - 1) & offset) {
perf_debug("copying index buffer to a temporary to work around "
"misaligned offset %d\n", offset);
GLubyte *map = ctx->Driver.MapBufferRange(ctx,
offset,
ib_size,
GL_MAP_READ_BIT,
bufferobj,
MAP_INTERNAL);
intel_upload_data(brw, map, ib_size, ib_type_size,
&brw->ib.bo, &offset);
ctx->Driver.UnmapBuffer(ctx, bufferobj, MAP_INTERNAL);
} else {
drm_intel_bo *bo =
intel_bufferobj_buffer(brw, intel_buffer_object(bufferobj),
offset, ib_size);
if (bo != brw->ib.bo) {
drm_intel_bo_unreference(brw->ib.bo);
brw->ib.bo = bo;
drm_intel_bo_reference(bo);
}
}
}
/* Use 3DPRIMITIVE's start_vertex_offset to avoid re-uploading
* the index buffer state when we're just moving the start index
* of our drawing.
*/
brw->ib.start_vertex_offset = offset / ib_type_size;
if (brw->ib.bo != old_bo)
brw->state.dirty.brw |= BRW_NEW_INDEX_BUFFER;
if (index_buffer->type != brw->ib.type) {
brw->ib.type = index_buffer->type;
brw->state.dirty.brw |= BRW_NEW_INDEX_BUFFER;
}
}
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;
}
/*
* Render a bitmap.
*/
static bool
do_blit_bitmap( struct gl_context *ctx,
GLint dstx, GLint dsty,
GLsizei width, GLsizei height,
const struct gl_pixelstore_attrib *unpack,
const GLubyte *bitmap )
{
struct intel_context *intel = intel_context(ctx);
struct gl_framebuffer *fb = ctx->DrawBuffer;
struct intel_renderbuffer *irb;
GLfloat tmpColor[4];
GLubyte ubcolor[4];
GLuint color;
GLsizei bitmap_width = width;
GLsizei bitmap_height = height;
GLint px, py;
GLuint stipple[32];
GLint orig_dstx = dstx;
GLint orig_dsty = dsty;
/* Update draw buffer bounds */
_mesa_update_state(ctx);
if (ctx->Depth.Test) {
/* The blit path produces incorrect results when depth testing is on.
* It seems the blit Z coord is always 1.0 (the far plane) so fragments
* will likely be obscured by other, closer geometry.
*/
return false;
}
intel_prepare_render(intel);
if (fb->_NumColorDrawBuffers != 1) {
perf_debug("accelerated glBitmap() only supports rendering to a "
"single color buffer\n");
return false;
}
irb = intel_renderbuffer(fb->_ColorDrawBuffers[0]);
if (_mesa_is_bufferobj(unpack->BufferObj)) {
bitmap = map_pbo(ctx, width, height, unpack, bitmap);
if (bitmap == NULL)
return true; /* even though this is an error, we're done */
}
COPY_4V(tmpColor, ctx->Current.RasterColor);
if (_mesa_need_secondary_color(ctx)) {
ADD_3V(tmpColor, tmpColor, ctx->Current.RasterSecondaryColor);
}
UNCLAMPED_FLOAT_TO_UBYTE(ubcolor[0], tmpColor[0]);
UNCLAMPED_FLOAT_TO_UBYTE(ubcolor[1], tmpColor[1]);
UNCLAMPED_FLOAT_TO_UBYTE(ubcolor[2], tmpColor[2]);
UNCLAMPED_FLOAT_TO_UBYTE(ubcolor[3], tmpColor[3]);
switch (irb->mt->format) {
case MESA_FORMAT_B8G8R8A8_UNORM:
case MESA_FORMAT_B8G8R8X8_UNORM:
color = PACK_COLOR_8888(ubcolor[3], ubcolor[0], ubcolor[1], ubcolor[2]);
break;
case MESA_FORMAT_B5G6R5_UNORM:
color = PACK_COLOR_565(ubcolor[0], ubcolor[1], ubcolor[2]);
break;
default:
perf_debug("Unsupported format %s in accelerated glBitmap()\n",
_mesa_get_format_name(irb->mt->format));
return false;
}
if (!intel_check_blit_fragment_ops(ctx, tmpColor[3] == 1.0F))
return false;
/* Clip to buffer bounds and scissor. */
if (!_mesa_clip_to_region(fb->_Xmin, fb->_Ymin,
fb->_Xmax, fb->_Ymax,
&dstx, &dsty, &width, &height))
goto out;
dsty = y_flip(fb, dsty, height);
#define DY 32
#define DX 32
/* Chop it all into chunks that can be digested by hardware: */
for (py = 0; py < height; py += DY) {
for (px = 0; px < width; px += DX) {
int h = MIN2(DY, height - py);
int w = MIN2(DX, width - px);
GLuint sz = ALIGN(ALIGN(w,8) * h, 64)/8;
GLenum logic_op = ctx->Color.ColorLogicOpEnabled ?
ctx->Color.LogicOp : GL_COPY;
assert(sz <= sizeof(stipple));
memset(stipple, 0, sz);
/* May need to adjust this when padding has been introduced in
* sz above:
*
* Have to translate destination coordinates back into source
* coordinates.
*/
int count = get_bitmap_rect(bitmap_width, bitmap_height, unpack,
bitmap,
-orig_dstx + (dstx + px),
-orig_dsty + y_flip(fb, dsty + py, h),
w, h,
(GLubyte *)stipple,
8,
_mesa_is_winsys_fbo(fb));
if (count == 0)
continue;
if (!intelEmitImmediateColorExpandBlit(intel,
irb->mt->cpp,
(GLubyte *)stipple,
sz,
color,
irb->mt->region->pitch,
irb->mt->region->bo,
0,
irb->mt->region->tiling,
dstx + px,
dsty + py,
w, h,
logic_op)) {
return false;
}
if (ctx->Query.CurrentOcclusionObject)
ctx->Query.CurrentOcclusionObject->Result += count;
}
}
out:
if (unlikely(INTEL_DEBUG & DEBUG_SYNC))
intel_batchbuffer_flush(intel);
if (_mesa_is_bufferobj(unpack->BufferObj)) {
/* done with PBO so unmap it now */
ctx->Driver.UnmapBuffer(ctx, unpack->BufferObj, MAP_INTERNAL);
}
intel_check_front_buffer_rendering(intel);
return true;
}
GLboolean
_mesa_validate_DrawElementsInstanced(struct gl_context *ctx,
GLenum mode, GLsizei count, GLenum type,
const GLvoid *indices, GLsizei numInstances,
GLint basevertex)
{
FLUSH_CURRENT(ctx, 0);
/* From the GLES3 specification, section 2.14.2 (Transform Feedback
* Primitive Capture):
*
* The error INVALID_OPERATION is also generated by DrawElements,
* DrawElementsInstanced, and DrawRangeElements while transform feedback
* is active and not paused, regardless of mode.
*/
if (_mesa_is_gles3(ctx) && _mesa_is_xfb_active_and_unpaused(ctx)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glDrawElements(transform feedback active)");
return GL_FALSE;
}
if (count <= 0) {
if (count < 0)
_mesa_error(ctx, GL_INVALID_VALUE,
"glDrawElementsInstanced(count=%d)", count);
return GL_FALSE;
}
if (!_mesa_valid_prim_mode(ctx, mode, "glDrawElementsInstanced")) {
return GL_FALSE;
}
if (!valid_elements_type(ctx, type, "glDrawElementsInstanced"))
return GL_FALSE;
if (numInstances <= 0) {
if (numInstances < 0)
_mesa_error(ctx, GL_INVALID_VALUE,
"glDrawElementsInstanced(numInstances=%d)", numInstances);
return GL_FALSE;
}
if (!check_valid_to_render(ctx, "glDrawElementsInstanced"))
return GL_FALSE;
/* Vertex buffer object tests */
if (_mesa_is_bufferobj(ctx->Array.ArrayObj->ElementArrayBufferObj)) {
/* use indices in the buffer object */
/* make sure count doesn't go outside buffer bounds */
if (index_bytes(type, count) > ctx->Array.ArrayObj->ElementArrayBufferObj->Size) {
_mesa_warning(ctx,
"glDrawElementsInstanced index out of buffer bounds");
return GL_FALSE;
}
}
else {
/* not using a VBO */
if (!indices)
return GL_FALSE;
}
if (!check_index_bounds(ctx, count, type, indices, basevertex))
return GL_FALSE;
return GL_TRUE;
}
/**
* Compute min and max elements by scanning the index buffer for
* glDraw[Range]Elements() calls.
* If primitive restart is enabled, we need to ignore restart
* indexes when computing min/max.
*/
static void
vbo_get_minmax_index(struct gl_context *ctx,
const struct _mesa_prim *prim,
const struct _mesa_index_buffer *ib,
GLuint *min_index, GLuint *max_index,
const GLuint count)
{
const GLboolean restart = ctx->Array._PrimitiveRestart;
const GLuint restartIndex = _mesa_primitive_restart_index(ctx, ib->type);
const int index_size = vbo_sizeof_ib_type(ib->type);
const char *indices;
GLuint i;
indices = (char *) ib->ptr + prim->start * index_size;
if (_mesa_is_bufferobj(ib->obj)) {
GLsizeiptr size = MIN2(count * index_size, ib->obj->Size);
indices = ctx->Driver.MapBufferRange(ctx, (GLintptr) indices, size,
GL_MAP_READ_BIT, ib->obj);
}
switch (ib->type) {
case GL_UNSIGNED_INT: {
const GLuint *ui_indices = (const GLuint *)indices;
GLuint max_ui = 0;
GLuint min_ui = ~0U;
if (restart) {
for (i = 0; i < count; i++) {
if (ui_indices[i] != restartIndex) {
if (ui_indices[i] > max_ui) max_ui = ui_indices[i];
if (ui_indices[i] < min_ui) min_ui = ui_indices[i];
}
}
}
else {
for (i = 0; i < count; i++) {
if (ui_indices[i] > max_ui) max_ui = ui_indices[i];
if (ui_indices[i] < min_ui) min_ui = ui_indices[i];
}
}
*min_index = min_ui;
*max_index = max_ui;
break;
}
case GL_UNSIGNED_SHORT: {
const GLushort *us_indices = (const GLushort *)indices;
GLuint max_us = 0;
GLuint min_us = ~0U;
if (restart) {
for (i = 0; i < count; i++) {
if (us_indices[i] != restartIndex) {
if (us_indices[i] > max_us) max_us = us_indices[i];
if (us_indices[i] < min_us) min_us = us_indices[i];
}
}
}
else {
for (i = 0; i < count; i++) {
if (us_indices[i] > max_us) max_us = us_indices[i];
if (us_indices[i] < min_us) min_us = us_indices[i];
}
}
*min_index = min_us;
*max_index = max_us;
break;
}
case GL_UNSIGNED_BYTE: {
const GLubyte *ub_indices = (const GLubyte *)indices;
GLuint max_ub = 0;
GLuint min_ub = ~0U;
if (restart) {
for (i = 0; i < count; i++) {
if (ub_indices[i] != restartIndex) {
if (ub_indices[i] > max_ub) max_ub = ub_indices[i];
if (ub_indices[i] < min_ub) min_ub = ub_indices[i];
}
}
}
else {
for (i = 0; i < count; i++) {
if (ub_indices[i] > max_ub) max_ub = ub_indices[i];
if (ub_indices[i] < min_ub) min_ub = ub_indices[i];
}
}
*min_index = min_ub;
*max_index = max_ub;
break;
}
default:
assert(0);
break;
}
if (_mesa_is_bufferobj(ib->obj)) {
ctx->Driver.UnmapBuffer(ctx, ib->obj);
}
}
/* XXX: Do this for TexSubImage also:
*/
static bool
try_pbo_upload(struct gl_context *ctx,
struct gl_texture_image *image,
const struct gl_pixelstore_attrib *unpack,
GLenum format, GLenum type, const void *pixels)
{
struct intel_texture_image *intelImage = intel_texture_image(image);
struct intel_context *intel = intel_context(ctx);
struct intel_buffer_object *pbo = intel_buffer_object(unpack->BufferObj);
GLuint src_offset;
drm_intel_bo *src_buffer;
if (!_mesa_is_bufferobj(unpack->BufferObj))
return false;
DBG("trying pbo upload\n");
if (intel->ctx._ImageTransferState ||
unpack->SkipPixels || unpack->SkipRows) {
DBG("%s: image transfer\n", __FUNCTION__);
return false;
}
ctx->Driver.AllocTextureImageBuffer(ctx, image);
if (!intelImage->mt) {
DBG("%s: no miptree\n", __FUNCTION__);
return false;
}
if (!_mesa_format_matches_format_and_type(intelImage->mt->format,
format, type, false)) {
DBG("%s: format mismatch (upload to %s with format 0x%x, type 0x%x)\n",
__FUNCTION__, _mesa_get_format_name(intelImage->mt->format),
format, type);
return false;
}
if (image->TexObject->Target == GL_TEXTURE_1D_ARRAY ||
image->TexObject->Target == GL_TEXTURE_2D_ARRAY) {
DBG("%s: no support for array textures\n", __FUNCTION__);
return false;
}
src_buffer = intel_bufferobj_source(intel, pbo, 64, &src_offset);
/* note: potential 64-bit ptr to 32-bit int cast */
src_offset += (GLuint) (unsigned long) pixels;
int src_stride =
_mesa_image_row_stride(unpack, image->Width, format, type);
struct intel_mipmap_tree *pbo_mt =
intel_miptree_create_for_bo(intel,
src_buffer,
intelImage->mt->format,
src_offset,
image->Width, image->Height,
src_stride, I915_TILING_NONE);
if (!pbo_mt)
return false;
if (!intel_miptree_blit(intel,
pbo_mt, 0, 0,
0, 0, false,
intelImage->mt, image->Level, image->Face,
0, 0, false,
image->Width, image->Height, GL_COPY)) {
DBG("%s: blit failed\n", __FUNCTION__);
intel_miptree_release(&pbo_mt);
return false;
}
intel_miptree_release(&pbo_mt);
DBG("%s: success\n", __FUNCTION__);
return true;
}
static GLboolean
valid_draw_indirect(struct gl_context *ctx,
GLenum mode, const GLvoid *indirect,
GLsizei size, const char *name)
{
const uint64_t end = (uint64_t) (uintptr_t) indirect + size;
/* OpenGL ES 3.1 spec. section 10.5:
*
* "DrawArraysIndirect requires that all data sourced for the
* command, including the DrawArraysIndirectCommand
* structure, be in buffer objects, and may not be called when
* the default vertex array object is bound."
*/
if (ctx->Array.VAO == ctx->Array.DefaultVAO) {
_mesa_error(ctx, GL_INVALID_OPERATION, "(no VAO bound)");
return GL_FALSE;
}
/* From OpenGL ES 3.1 spec. section 10.5:
* "An INVALID_OPERATION error is generated if zero is bound to
* VERTEX_ARRAY_BINDING, DRAW_INDIRECT_BUFFER or to any enabled
* vertex array."
*
* Here we check that for each enabled vertex array we have a vertex
* buffer bound.
*/
if (_mesa_is_gles31(ctx) &&
ctx->Array.VAO->_Enabled != ctx->Array.VAO->VertexAttribBufferMask) {
_mesa_error(ctx, GL_INVALID_OPERATION, "%s(No VBO bound)", name);
return GL_FALSE;
}
if (!_mesa_valid_prim_mode(ctx, mode, name))
return GL_FALSE;
/* OpenGL ES 3.1 specification, section 10.5:
*
* "An INVALID_OPERATION error is generated if
* transform feedback is active and not paused."
*/
if (_mesa_is_gles31(ctx) && !ctx->Extensions.OES_geometry_shader &&
_mesa_is_xfb_active_and_unpaused(ctx)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"%s(TransformFeedback is active and not paused)", name);
}
/* From OpenGL version 4.4. section 10.5
* and OpenGL ES 3.1, section 10.6:
*
* "An INVALID_VALUE error is generated if indirect is not a
* multiple of the size, in basic machine units, of uint."
*/
if ((GLsizeiptr)indirect & (sizeof(GLuint) - 1)) {
_mesa_error(ctx, GL_INVALID_VALUE,
"%s(indirect is not aligned)", name);
return GL_FALSE;
}
if (!_mesa_is_bufferobj(ctx->DrawIndirectBuffer)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"%s: no buffer bound to DRAW_INDIRECT_BUFFER", name);
return GL_FALSE;
}
if (_mesa_check_disallowed_mapping(ctx->DrawIndirectBuffer)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"%s(DRAW_INDIRECT_BUFFER is mapped)", name);
return GL_FALSE;
}
/* From the ARB_draw_indirect specification:
* "An INVALID_OPERATION error is generated if the commands source data
* beyond the end of the buffer object [...]"
*/
if (ctx->DrawIndirectBuffer->Size < end) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"%s(DRAW_INDIRECT_BUFFER too small)", name);
return GL_FALSE;
}
if (!check_valid_to_render(ctx, name))
return GL_FALSE;
return GL_TRUE;
}
void GLAPIENTRY
_mesa_ReadnPixelsARB( GLint x, GLint y, GLsizei width, GLsizei height,
GLenum format, GLenum type, GLsizei bufSize,
GLvoid *pixels )
{
GLenum err = GL_NO_ERROR;
struct gl_renderbuffer *rb;
GET_CURRENT_CONTEXT(ctx);
FLUSH_VERTICES(ctx, 0);
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 (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
_mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
"glReadPixels(incomplete framebuffer)" );
return;
}
rb = _mesa_get_read_renderbuffer_for_format(ctx, format);
if (rb == NULL) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glReadPixels(read buffer)");
return;
}
/* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
* combinations of format and type that can be used.
*
* Technically, only two combinations are actually allowed:
* GL_RGBA/GL_UNSIGNED_BYTE, and some implementation-specific internal
* preferred combination. This code doesn't know what that preferred
* combination is, and Mesa can handle anything valid. Just work instead.
*/
if (_mesa_is_gles(ctx)) {
if (ctx->API == API_OPENGLES2 &&
_mesa_is_color_format(format) &&
_mesa_get_color_read_format(ctx) == format &&
_mesa_get_color_read_type(ctx) == type) {
err = GL_NO_ERROR;
} else if (ctx->Version < 30) {
err = _mesa_es_error_check_format_and_type(format, type, 2);
if (err == GL_NO_ERROR) {
if (type == GL_FLOAT || type == GL_HALF_FLOAT_OES) {
err = GL_INVALID_OPERATION;
}
}
} else {
err = read_pixels_es3_error_check(format, type, rb);
}
if (err == GL_NO_ERROR && (format == GL_DEPTH_COMPONENT
|| format == GL_DEPTH_STENCIL)) {
err = GL_INVALID_ENUM;
}
if (err != GL_NO_ERROR) {
_mesa_error(ctx, err, "glReadPixels(invalid format %s and/or type %s)",
_mesa_lookup_enum_by_nr(format),
_mesa_lookup_enum_by_nr(type));
return;
}
}
err = _mesa_error_check_format_and_type(ctx, format, type);
if (err != GL_NO_ERROR) {
_mesa_error(ctx, err, "glReadPixels(invalid format %s and/or type %s)",
_mesa_lookup_enum_by_nr(format),
_mesa_lookup_enum_by_nr(type));
return;
}
if (_mesa_is_user_fbo(ctx->ReadBuffer) &&
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;
}
/* 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_enum_format_integer(format);
if (dstInteger != srcInteger) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glReadPixels(integer / non-integer format mismatch");
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_check_disallowed_mapping(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);
}
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);
}
}
static GLboolean
do_blit_readpixels(struct gl_context * ctx,
GLint x, GLint y, GLsizei width, GLsizei height,
GLenum format, GLenum type,
const struct gl_pixelstore_attrib *pack, GLvoid * pixels)
{
radeonContextPtr radeon = RADEON_CONTEXT(ctx);
const struct radeon_renderbuffer *rrb = radeon_renderbuffer(ctx->ReadBuffer->_ColorReadBuffer);
const gl_format dst_format = gl_format_and_type_to_mesa_format(format, type);
unsigned dst_rowstride, dst_imagesize, aligned_rowstride, flip_y;
struct radeon_bo *dst_buffer;
GLint dst_x = 0, dst_y = 0;
intptr_t dst_offset;
/* It's not worth if number of pixels to copy is really small */
if (width * height < 100) {
return GL_FALSE;
}
if (dst_format == MESA_FORMAT_NONE ||
!radeon->vtbl.check_blit(dst_format) || !radeon->vtbl.blit) {
return GL_FALSE;
}
if (ctx->_ImageTransferState || ctx->Color._LogicOpEnabled) {
return GL_FALSE;
}
if (pack->SwapBytes || pack->LsbFirst) {
return GL_FALSE;
}
if (pack->RowLength > 0) {
dst_rowstride = pack->RowLength;
} else {
dst_rowstride = width;
}
if (!_mesa_clip_copytexsubimage(ctx, &dst_x, &dst_y, &x, &y, &width, &height)) {
return GL_TRUE;
}
assert(x >= 0 && y >= 0);
aligned_rowstride = get_texture_image_row_stride(radeon, dst_format, dst_rowstride, 0);
dst_rowstride *= _mesa_get_format_bytes(dst_format);
if (_mesa_is_bufferobj(pack->BufferObj) && aligned_rowstride != dst_rowstride)
return GL_FALSE;
dst_imagesize = get_texture_image_size(dst_format,
aligned_rowstride,
height, 1, 0);
if (!_mesa_is_bufferobj(pack->BufferObj))
{
dst_buffer = radeon_bo_open(radeon->radeonScreen->bom, 0, dst_imagesize, 1024, RADEON_GEM_DOMAIN_GTT, 0);
dst_offset = 0;
}
else
{
dst_buffer = get_radeon_buffer_object(pack->BufferObj)->bo;
dst_offset = (intptr_t)pixels;
}
/* Disable source Y flipping for FBOs */
flip_y = (ctx->ReadBuffer->Name == 0);
if (pack->Invert) {
y = rrb->base.Height - height - y;
flip_y = !flip_y;
}
if (radeon->vtbl.blit(ctx,
rrb->bo,
rrb->draw_offset,
rrb->base.Format,
rrb->pitch / rrb->cpp,
rrb->base.Width,
rrb->base.Height,
x,
y,
dst_buffer,
dst_offset,
dst_format,
aligned_rowstride / _mesa_get_format_bytes(dst_format),
width,
height,
0, /* dst_x */
0, /* dst_y */
width,
height,
flip_y))
{
if (!_mesa_is_bufferobj(pack->BufferObj))
{
radeon_bo_map(dst_buffer, 0);
copy_rows(pixels, dst_rowstride, dst_buffer->ptr,
aligned_rowstride, height, dst_rowstride);
radeon_bo_unmap(dst_buffer);
radeon_bo_unref(dst_buffer);
}
return GL_TRUE;
}
if (!_mesa_is_bufferobj(pack->BufferObj))
radeon_bo_unref(dst_buffer);
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);
}
}
