void
cso_draw_arrays(struct cso_context *cso, uint mode, uint start, uint count)
{
struct pipe_draw_info info;
util_draw_init_info(&info);
info.mode = mode;
info.start = start;
info.count = count;
info.min_index = start;
info.max_index = start + count - 1;
cso_draw_vbo(cso, &info);
}
static void
st_indirect_draw_vbo(struct gl_context *ctx,
GLuint mode,
struct gl_buffer_object *indirect_data,
GLsizeiptr indirect_offset,
unsigned draw_count,
unsigned stride,
struct gl_buffer_object *indirect_params,
GLsizeiptr indirect_params_offset,
const struct _mesa_index_buffer *ib)
{
struct st_context *st = st_context(ctx);
struct pipe_index_buffer ibuffer = {0};
struct pipe_draw_info info;
/* Mesa core state should have been validated already */
assert(ctx->NewState == 0x0);
assert(stride);
/* Validate state. */
if ((st->dirty | ctx->NewDriverState) & ST_PIPELINE_RENDER_STATE_MASK ||
st->gfx_shaders_may_be_dirty) {
st_validate_state(st, ST_PIPELINE_RENDER);
}
if (st->vertex_array_out_of_memory) {
return;
}
util_draw_init_info(&info);
if (ib) {
if (!setup_index_buffer(st, ib, &ibuffer)) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "gl%sDrawElementsIndirect%s",
(draw_count > 1) ? "Multi" : "",
indirect_params ? "CountARB" : "");
return;
}
info.indexed = TRUE;
/* Primitive restart is not handled by the VBO module in this case. */
setup_primitive_restart(ctx, ib, &info);
}
info.mode = translate_prim(ctx, mode);
info.vertices_per_patch = ctx->TessCtrlProgram.patch_vertices;
info.indirect = st_buffer_object(indirect_data)->buffer;
info.indirect_offset = indirect_offset;
if (ST_DEBUG & DEBUG_DRAW) {
debug_printf("st/draw indirect: mode %s drawcount %d indexed %d\n",
u_prim_name(info.mode),
draw_count,
info.indexed);
}
if (!st->has_multi_draw_indirect) {
int i;
assert(!indirect_params);
info.indirect_count = 1;
for (i = 0; i < draw_count; i++) {
info.drawid = i;
cso_draw_vbo(st->cso_context, &info);
info.indirect_offset += stride;
}
} else {
info.indirect_count = draw_count;
info.indirect_stride = stride;
if (indirect_params) {
info.indirect_params = st_buffer_object(indirect_params)->buffer;
info.indirect_params_offset = indirect_params_offset;
}
cso_draw_vbo(st->cso_context, &info);
}
}
/**
* This function gets plugged into the VBO module and is called when
* we have something to render.
* Basically, translate the information into the format expected by gallium.
*/
void
st_draw_vbo(struct gl_context *ctx,
const struct _mesa_prim *prims,
GLuint nr_prims,
const struct _mesa_index_buffer *ib,
GLboolean index_bounds_valid,
GLuint min_index,
GLuint max_index,
struct gl_transform_feedback_object *tfb_vertcount,
struct gl_buffer_object *indirect)
{
struct st_context *st = st_context(ctx);
struct pipe_index_buffer ibuffer = {0};
struct pipe_draw_info info;
const struct gl_client_array **arrays = ctx->Array._DrawArrays;
unsigned i;
/* Mesa core state should have been validated already */
assert(ctx->NewState == 0x0);
/* Validate state. */
if (st->dirty.st || ctx->NewDriverState) {
st_validate_state(st);
#if 0
if (MESA_VERBOSE & VERBOSE_GLSL) {
check_uniforms(ctx);
}
#else
(void) check_uniforms;
#endif
}
if (st->vertex_array_out_of_memory) {
return;
}
util_draw_init_info(&info);
if (ib) {
/* Get index bounds for user buffers. */
if (!index_bounds_valid)
if (!all_varyings_in_vbos(arrays))
vbo_get_minmax_indices(ctx, prims, ib, &min_index, &max_index,
nr_prims);
if (!setup_index_buffer(st, ib, &ibuffer)) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glBegin/DrawElements/DrawArray");
return;
}
info.indexed = TRUE;
if (min_index != ~0 && max_index != ~0) {
info.min_index = min_index;
info.max_index = max_index;
}
/* The VBO module handles restart for the non-indexed GLDrawArrays
* so we only set these fields for indexed drawing:
*/
info.primitive_restart = ctx->Array._PrimitiveRestart;
info.restart_index = ctx->Array.RestartIndex;
}
else {
/* Transform feedback drawing is always non-indexed. */
/* Set info.count_from_stream_output. */
if (tfb_vertcount) {
st_transform_feedback_draw_init(tfb_vertcount, &info);
}
}
/* do actual drawing */
for (i = 0; i < nr_prims; i++) {
info.mode = translate_prim(ctx, prims[i].mode);
info.start = prims[i].start;
info.count = prims[i].count;
info.start_instance = prims[i].base_instance;
info.instance_count = prims[i].num_instances;
info.index_bias = prims[i].basevertex;
if (!ib) {
info.min_index = info.start;
info.max_index = info.start + info.count - 1;
}
if (ST_DEBUG & DEBUG_DRAW) {
debug_printf("st/draw: mode %s start %u count %u indexed %d\n",
u_prim_name(info.mode),
info.start,
info.count,
info.indexed);
}
if (info.count_from_stream_output) {
cso_draw_vbo(st->cso_context, &info);
}
else if (info.primitive_restart) {
/* don't trim, restarts might be inside index list */
cso_draw_vbo(st->cso_context, &info);
}
else if (u_trim_pipe_prim(prims[i].mode, &info.count)) {
cso_draw_vbo(st->cso_context, &info);
}
}
if (ib && st->indexbuf_uploader && !_mesa_is_bufferobj(ib->obj)) {
pipe_resource_reference(&ibuffer.buffer, NULL);
}
}
/**
* This function gets plugged into the VBO module and is called when
* we have something to render.
* Basically, translate the information into the format expected by gallium.
*/
void
st_draw_vbo(struct gl_context *ctx,
const struct _mesa_prim *prims,
GLuint nr_prims,
const struct _mesa_index_buffer *ib,
GLboolean index_bounds_valid,
GLuint min_index,
GLuint max_index,
struct gl_transform_feedback_object *tfb_vertcount)
{
struct st_context *st = st_context(ctx);
struct pipe_index_buffer ibuffer = {0};
struct pipe_draw_info info;
const struct gl_client_array **arrays = ctx->Array._DrawArrays;
unsigned i;
GLboolean new_array;
/* Mesa core state should have been validated already */
assert(ctx->NewState == 0x0);
/* Get Mesa driver state. */
st->dirty.st |= ctx->NewDriverState;
ctx->NewDriverState = 0;
new_array =
(st->dirty.st & (ST_NEW_VERTEX_ARRAYS | ST_NEW_VERTEX_PROGRAM)) ||
(st->dirty.mesa & (_NEW_PROGRAM | _NEW_BUFFER_OBJECT)) != 0;
/* Validate state. */
if (st->dirty.st) {
GLboolean vertDataEdgeFlags;
vertDataEdgeFlags = arrays[VERT_ATTRIB_EDGEFLAG]->BufferObj &&
arrays[VERT_ATTRIB_EDGEFLAG]->BufferObj->Name;
if (vertDataEdgeFlags != st->vertdata_edgeflags) {
st->vertdata_edgeflags = vertDataEdgeFlags;
st->dirty.st |= ST_NEW_EDGEFLAGS_DATA;
}
st_validate_state(st);
if (new_array) {
if (!st_validate_varrays(ctx, arrays)) {
/* probably out of memory, no-op the draw call */
return;
}
}
#if 0
if (MESA_VERBOSE & VERBOSE_GLSL) {
check_uniforms(ctx);
}
#else
(void) check_uniforms;
#endif
}
util_draw_init_info(&info);
if (ib) {
/* Get index bounds for user buffers. */
if (!index_bounds_valid)
if (!all_varyings_in_vbos(arrays))
vbo_get_minmax_indices(ctx, prims, ib, &min_index, &max_index,
nr_prims);
setup_index_buffer(st, ib, &ibuffer);
info.indexed = TRUE;
if (min_index != ~0 && max_index != ~0) {
info.min_index = min_index;
info.max_index = max_index;
}
/* The VBO module handles restart for the non-indexed GLDrawArrays
* so we only set these fields for indexed drawing:
*/
info.primitive_restart = ctx->Array.PrimitiveRestart;
info.restart_index = ctx->Array.RestartIndex;
}
else {
/* Transform feedback drawing is always non-indexed. */
/* Set info.count_from_stream_output. */
if (tfb_vertcount) {
st_transform_feedback_draw_init(tfb_vertcount, &info);
}
}
/* do actual drawing */
for (i = 0; i < nr_prims; i++) {
info.mode = translate_prim( ctx, prims[i].mode );
info.start = prims[i].start;
info.count = prims[i].count;
info.instance_count = prims[i].num_instances;
info.index_bias = prims[i].basevertex;
if (!ib) {
info.min_index = info.start;
info.max_index = info.start + info.count - 1;
}
if (info.count_from_stream_output) {
cso_draw_vbo(st->cso_context, &info);
}
else if (info.primitive_restart) {
/* don't trim, restarts might be inside index list */
cso_draw_vbo(st->cso_context, &info);
}
else if (u_trim_pipe_prim(info.mode, &info.count))
cso_draw_vbo(st->cso_context, &info);
}
if (ib && st->indexbuf_uploader && !_mesa_is_bufferobj(ib->obj)) {
pipe_resource_reference(&ibuffer.buffer, NULL);
}
}