static void codegen_declare_tmps(DynStr *ds, ListBase *nodes)
{
GPUNode *node;
GPUInput *input;
GPUOutput *output;
for (node=nodes->first; node; node=node->next) {
/* load pixels from textures */
for (input=node->inputs.first; input; input=input->next) {
if (input->source == GPU_SOURCE_TEX_PIXEL) {
if (codegen_input_has_texture(input) && input->definetex) {
BLI_dynstr_appendf(ds, "\tvec4 tex%d = texture2D(", input->texid);
BLI_dynstr_appendf(ds, "samp%d, gl_TexCoord[%d].st);\n",
input->texid, input->texid);
}
}
}
/* declare temporary variables for node output storage */
for (output=node->outputs.first; output; output=output->next)
BLI_dynstr_appendf(ds, "\t%s tmp%d;\n",
GPU_DATATYPE_STR[output->type], output->id);
}
BLI_dynstr_append(ds, "\n");
}
static void codegen_print_datatype(DynStr *ds, int type, float *data)
{
int i;
BLI_dynstr_appendf(ds, "%s(", GPU_DATATYPE_STR[type]);
for (i=0; i<type; i++) {
BLI_dynstr_appendf(ds, "%f", data[i]);
if (i == type-1)
BLI_dynstr_append(ds, ")");
else
BLI_dynstr_append(ds, ", ");
}
}
static char *bmp_slots_as_args(const BMOSlotType slot_types[BMO_OP_MAX_SLOTS], const bool is_out)
{
DynStr *dyn_str = BLI_dynstr_new();
char *ret;
int i = 0;
while (*slot_types[i].name) {
/* cut off '.out' by using a string size arg */
const int name_len = is_out ?
(strchr(slot_types[i].name, '.') - slot_types[i].name) :
sizeof(slot_types[i].name);
const char *value = "<Unknown>";
switch (slot_types[i].type) {
case BMO_OP_SLOT_BOOL: value = "False"; break;
case BMO_OP_SLOT_INT: value = "0"; break;
case BMO_OP_SLOT_FLT: value = "0.0"; break;
case BMO_OP_SLOT_PTR: value = "None"; break;
case BMO_OP_SLOT_MAT: value = "Matrix()"; break;
case BMO_OP_SLOT_VEC: value = "Vector()"; break;
case BMO_OP_SLOT_ELEMENT_BUF: value =
(slot_types[i].subtype.elem & BMO_OP_SLOT_SUBTYPE_ELEM_IS_SINGLE) ? "None" : "[]"; break;
case BMO_OP_SLOT_MAPPING: value = "{}"; break;
}
BLI_dynstr_appendf(dyn_str, i ? ", %.*s=%s" : "%.*s=%s", name_len, slot_types[i].name, value);
i++;
}
ret = BLI_dynstr_get_cstring(dyn_str);
BLI_dynstr_free(dyn_str);
return ret;
}
static char *gpu_generate_function_prototyps(GHash *hash)
{
DynStr *ds = BLI_dynstr_new();
GHashIterator *ghi;
GPUFunction *function;
char *name, *prototypes;
int a;
/* automatically generate function prototypes to add to the top of the
* generated code, to avoid have to add the actual code & recompile all */
ghi = BLI_ghashIterator_new(hash);
for (; !BLI_ghashIterator_done(ghi); BLI_ghashIterator_step(ghi)) {
name = BLI_ghashIterator_getValue(ghi);
function = BLI_ghashIterator_getValue(ghi);
BLI_dynstr_appendf(ds, "void %s(", name);
for (a = 0; a < function->totparam; a++) {
if (function->paramqual[a] == FUNCTION_QUAL_OUT)
BLI_dynstr_append(ds, "out ");
else if (function->paramqual[a] == FUNCTION_QUAL_INOUT)
BLI_dynstr_append(ds, "inout ");
if (function->paramtype[a] == GPU_TEX2D)
BLI_dynstr_append(ds, "sampler2D");
else if (function->paramtype[a] == GPU_SHADOW2D)
BLI_dynstr_append(ds, "sampler2DShadow");
else
BLI_dynstr_append(ds, GPU_DATATYPE_STR[function->paramtype[a]]);
# if 0
BLI_dynstr_appendf(ds, " param%d", a);
# endif
if (a != function->totparam-1)
BLI_dynstr_append(ds, ", ");
}
BLI_dynstr_append(ds, ");\n");
}
BLI_dynstr_append(ds, "\n");
prototypes = BLI_dynstr_get_cstring(ds);
BLI_dynstr_free(ds);
return prototypes;
}
static char *code_generate_vertex(ListBase *nodes)
{
DynStr *ds = BLI_dynstr_new();
GPUNode *node;
GPUInput *input;
char *code;
for (node=nodes->first; node; node=node->next) {
for (input=node->inputs.first; input; input=input->next) {
if (input->source == GPU_SOURCE_ATTRIB && input->attribfirst) {
BLI_dynstr_appendf(ds, "attribute %s att%d;\n",
GPU_DATATYPE_STR[input->type], input->attribid);
BLI_dynstr_appendf(ds, "varying %s var%d;\n",
GPU_DATATYPE_STR[input->type], input->attribid);
}
}
}
BLI_dynstr_append(ds, "\n");
BLI_dynstr_append(ds, datatoc_gpu_shader_vertex_glsl);
for (node=nodes->first; node; node=node->next)
for (input=node->inputs.first; input; input=input->next)
if (input->source == GPU_SOURCE_ATTRIB && input->attribfirst) {
if(input->attribtype == CD_TANGENT) /* silly exception */
{
BLI_dynstr_appendf(ds, "\tvar%d.xyz = normalize((gl_ModelViewMatrix * vec4(att%d.xyz, 0)).xyz);\n", input->attribid, input->attribid);
BLI_dynstr_appendf(ds, "\tvar%d.w = att%d.w;\n", input->attribid, input->attribid);
}
else
BLI_dynstr_appendf(ds, "\tvar%d = att%d;\n", input->attribid, input->attribid);
}
BLI_dynstr_append(ds, "}\n\n");
code = BLI_dynstr_get_cstring(ds);
BLI_dynstr_free(ds);
//if(G.f & G_DEBUG) printf("%s\n", code);
return code;
}
static void codegen_call_functions(DynStr *ds, ListBase *nodes, GPUOutput *finaloutput)
{
GPUNode *node;
GPUInput *input;
GPUOutput *output;
for (node = nodes->first; node; node = node->next) {
BLI_dynstr_appendf(ds, "\t%s(", node->name);
for (input = node->inputs.first; input; input = input->next) {
if (input->source == GPU_SOURCE_TEX) {
BLI_dynstr_appendf(ds, "samp%d", input->texid);
if (input->link)
BLI_dynstr_appendf(ds, ", gl_TexCoord[%d].st", input->texid);
}
else if (input->source == GPU_SOURCE_TEX_PIXEL) {
codegen_convert_datatype(ds, input->link->output->type, input->type,
"tmp", input->link->output->id);
}
else if (input->source == GPU_SOURCE_BUILTIN) {
if (input->builtin == GPU_VIEW_NORMAL)
BLI_dynstr_append(ds, "facingnormal");
else
BLI_dynstr_append(ds, GPU_builtin_name(input->builtin));
}
else if (input->source == GPU_SOURCE_VEC_UNIFORM) {
if (input->dynamicvec)
BLI_dynstr_appendf(ds, "unf%d", input->id);
else
BLI_dynstr_appendf(ds, "cons%d", input->id);
}
else if (input->source == GPU_SOURCE_ATTRIB) {
BLI_dynstr_appendf(ds, "var%d", input->attribid);
}
else if (input->source == GPU_SOURCE_OPENGL_BUILTIN) {
if (input->oglbuiltin == GPU_MATCAP_NORMAL)
BLI_dynstr_append(ds, "gl_SecondaryColor");
else if (input->oglbuiltin == GPU_COLOR)
BLI_dynstr_append(ds, "gl_Color");
}
BLI_dynstr_append(ds, ", ");
}
for (output = node->outputs.first; output; output = output->next) {
BLI_dynstr_appendf(ds, "tmp%d", output->id);
if (output->next)
BLI_dynstr_append(ds, ", ");
}
BLI_dynstr_append(ds, ");\n");
}
BLI_dynstr_append(ds, "\n\tgl_FragColor = ");
codegen_convert_datatype(ds, finaloutput->type, GPU_VEC4, "tmp", finaloutput->id);
BLI_dynstr_append(ds, ";\n");
}
static int codegen_print_uniforms_functions(DynStr *ds, ListBase *nodes)
{
GPUNode *node;
GPUInput *input;
const char *name;
int builtins = 0;
/* print uniforms */
for (node=nodes->first; node; node=node->next) {
for (input=node->inputs.first; input; input=input->next) {
if ((input->source == GPU_SOURCE_TEX) || (input->source == GPU_SOURCE_TEX_PIXEL)) {
/* create exactly one sampler for each texture */
if (codegen_input_has_texture(input) && input->bindtex)
BLI_dynstr_appendf(ds, "uniform %s samp%d;\n",
(input->textype == GPU_TEX2D) ? "sampler2D" : "sampler2DShadow",
input->texid);
}
else if (input->source == GPU_SOURCE_BUILTIN) {
/* only define each builting uniform/varying once */
if (!(builtins & input->builtin)) {
builtins |= input->builtin;
name = GPU_builtin_name(input->builtin);
if (gpu_str_prefix(name, "unf")) {
BLI_dynstr_appendf(ds, "uniform %s %s;\n",
GPU_DATATYPE_STR[input->type], name);
}
else {
BLI_dynstr_appendf(ds, "varying %s %s;\n",
GPU_DATATYPE_STR[input->type], name);
}
}
}
else if (input->source == GPU_SOURCE_VEC_UNIFORM) {
if (input->dynamicvec) {
/* only create uniforms for dynamic vectors */
BLI_dynstr_appendf(ds, "uniform %s unf%d;\n",
GPU_DATATYPE_STR[input->type], input->id);
}
else {
/* for others use const so the compiler can do folding */
BLI_dynstr_appendf(ds, "const %s cons%d = ",
GPU_DATATYPE_STR[input->type], input->id);
codegen_print_datatype(ds, input->type, input->vec);
BLI_dynstr_append(ds, ";\n");
}
}
else if (input->source == GPU_SOURCE_ATTRIB && input->attribfirst) {
BLI_dynstr_appendf(ds, "varying %s var%d;\n",
GPU_DATATYPE_STR[input->type], input->attribid);
}
}
}
BLI_dynstr_append(ds, "\n");
return builtins;
}
static PyObject *Euler_str(EulerObject *self)
{
DynStr *ds;
if (BaseMath_ReadCallback(self) == -1)
return NULL;
ds = BLI_dynstr_new();
BLI_dynstr_appendf(ds, "<Euler (x=%.4f, y=%.4f, z=%.4f), order='%s'>",
self->eul[0], self->eul[1], self->eul[2], euler_order_str(self));
return mathutils_dynstr_to_py(ds); /* frees ds */
}
static PyObject *Quaternion_str(QuaternionObject *self)
{
DynStr *ds;
if (BaseMath_ReadCallback(self) == -1)
return NULL;
ds = BLI_dynstr_new();
BLI_dynstr_appendf(ds, "<Quaternion (w=%.4f, x=%.4f, y=%.4f, z=%.4f)>",
self->quat[0], self->quat[1], self->quat[2], self->quat[3]);
return mathutils_dynstr_to_py(ds); /* frees ds */
}
static PyObject *Color_str(ColorObject *self)
{
DynStr *ds;
if (BaseMath_ReadCallback(self) == -1)
return NULL;
ds = BLI_dynstr_new();
BLI_dynstr_appendf(ds, "<Color (r=%.4f, g=%.4f, b=%.4f)>",
self->col[0], self->col[1], self->col[2]);
return mathutils_dynstr_to_py(ds); /* frees ds */
}
char *BPy_enum_as_string(EnumPropertyItem *item)
{
DynStr *dynstr = BLI_dynstr_new();
EnumPropertyItem *e;
char *cstring;
for (e = item; item->identifier; item++) {
if (item->identifier[0])
BLI_dynstr_appendf(dynstr, (e == item) ? "'%s'" : ", '%s'", item->identifier);
}
cstring = BLI_dynstr_get_cstring(dynstr);
BLI_dynstr_free(dynstr);
return cstring;
}
char *BKE_reports_string(ReportList *reports, ReportType level)
{
Report *report;
DynStr *ds;
char *cstring;
if (!reports || !reports->list.first)
return NULL;
ds= BLI_dynstr_new();
for (report=reports->list.first; report; report=report->next)
if (report->type >= level)
BLI_dynstr_appendf(ds, "%s: %s\n", report->typestr, report->message);
if (BLI_dynstr_get_len(ds))
cstring= BLI_dynstr_get_cstring(ds);
else
cstring= NULL;
BLI_dynstr_free(ds);
return cstring;
}
static char *code_generate_fragment(ListBase *nodes, GPUOutput *output)
{
DynStr *ds = BLI_dynstr_new();
char *code;
int builtins;
#if 0
BLI_dynstr_append(ds, FUNCTION_PROTOTYPES);
#endif
codegen_set_unique_ids(nodes);
builtins = codegen_print_uniforms_functions(ds, nodes);
#if 0
if (G.debug & G_DEBUG)
BLI_dynstr_appendf(ds, "/* %s */\n", name);
#endif
BLI_dynstr_append(ds, "void main(void)\n");
BLI_dynstr_append(ds, "{\n");
if (builtins & GPU_VIEW_NORMAL)
BLI_dynstr_append(ds, "\tvec3 facingnormal = (gl_FrontFacing)? varnormal: -varnormal;\n");
codegen_declare_tmps(ds, nodes);
codegen_call_functions(ds, nodes, output);
BLI_dynstr_append(ds, "}\n");
/* create shader */
code = BLI_dynstr_get_cstring(ds);
BLI_dynstr_free(ds);
#if 0
if (G.debug & G_DEBUG) printf("%s\n", code);
#endif
return code;
}
static void codegen_convert_datatype(DynStr *ds, int from, int to, const char *tmp, int id)
{
char name[1024];
BLI_snprintf(name, sizeof(name), "%s%d", tmp, id);
if (from == to) {
BLI_dynstr_append(ds, name);
}
else if (to == GPU_FLOAT) {
if (from == GPU_VEC4)
BLI_dynstr_appendf(ds, "dot(%s.rgb, vec3(0.35, 0.45, 0.2))", name);
else if (from == GPU_VEC3)
BLI_dynstr_appendf(ds, "dot(%s, vec3(0.33))", name);
else if (from == GPU_VEC2)
BLI_dynstr_appendf(ds, "%s.r", name);
}
else if (to == GPU_VEC2) {
if (from == GPU_VEC4)
BLI_dynstr_appendf(ds, "vec2(dot(%s.rgb, vec3(0.35, 0.45, 0.2)), %s.a)", name, name);
else if (from == GPU_VEC3)
BLI_dynstr_appendf(ds, "vec2(dot(%s.rgb, vec3(0.33)), 1.0)", name);
else if (from == GPU_FLOAT)
BLI_dynstr_appendf(ds, "vec2(%s, 1.0)", name);
}
else if (to == GPU_VEC3) {
if (from == GPU_VEC4)
BLI_dynstr_appendf(ds, "%s.rgb", name);
else if (from == GPU_VEC2)
BLI_dynstr_appendf(ds, "vec3(%s.r, %s.r, %s.r)", name, name, name);
else if (from == GPU_FLOAT)
BLI_dynstr_appendf(ds, "vec3(%s, %s, %s)", name, name, name);
}
else {
if (from == GPU_VEC3)
BLI_dynstr_appendf(ds, "vec4(%s, 1.0)", name);
else if (from == GPU_VEC2)
BLI_dynstr_appendf(ds, "vec4(%s.r, %s.r, %s.r, %s.g)", name, name, name, name);
else if (from == GPU_FLOAT)
BLI_dynstr_appendf(ds, "vec4(%s, %s, %s, 1.0)", name, name, name);
}
}
static char *code_generate_vertex(ListBase *nodes, const GPUMatType type)
{
DynStr *ds = BLI_dynstr_new();
GPUNode *node;
GPUInput *input;
char *code;
char *vertcode;
for (node = nodes->first; node; node = node->next) {
for (input = node->inputs.first; input; input = input->next) {
if (input->source == GPU_SOURCE_ATTRIB && input->attribfirst) {
BLI_dynstr_appendf(ds, "attribute %s att%d;\n",
GPU_DATATYPE_STR[input->type], input->attribid);
BLI_dynstr_appendf(ds, "varying %s var%d;\n",
GPU_DATATYPE_STR[input->type], input->attribid);
}
}
}
BLI_dynstr_append(ds, "\n");
switch (type) {
case GPU_MATERIAL_TYPE_MESH:
vertcode = datatoc_gpu_shader_vertex_glsl;
break;
case GPU_MATERIAL_TYPE_WORLD:
vertcode = datatoc_gpu_shader_vertex_world_glsl;
break;
default:
fprintf(stderr, "invalid material type, set one after GPU_material_construct_begin\n");
break;
}
BLI_dynstr_append(ds, vertcode);
for (node = nodes->first; node; node = node->next)
for (input = node->inputs.first; input; input = input->next)
if (input->source == GPU_SOURCE_ATTRIB && input->attribfirst) {
if (input->attribtype == CD_TANGENT) { /* silly exception */
BLI_dynstr_appendf(ds, "\tvar%d.xyz = normalize(gl_NormalMatrix * att%d.xyz);\n", input->attribid, input->attribid);
BLI_dynstr_appendf(ds, "\tvar%d.w = att%d.w;\n", input->attribid, input->attribid);
}
else
BLI_dynstr_appendf(ds, "\tvar%d = att%d;\n", input->attribid, input->attribid);
}
/* unfortunately special handling is needed here because we abuse gl_Color/gl_SecondaryColor flat shading */
else if (input->source == GPU_SOURCE_OPENGL_BUILTIN) {
if (input->oglbuiltin == GPU_MATCAP_NORMAL) {
/* remap to 0.0 - 1.0 range. This is done because OpenGL 2.0 clamps colors
* between shader stages and we want the full range of the normal */
BLI_dynstr_appendf(ds, "\tvec3 matcapcol = vec3(0.5, 0.5, 0.5) * varnormal + vec3(0.5, 0.5, 0.5);\n");
BLI_dynstr_appendf(ds, "\tgl_FrontSecondaryColor = vec4(matcapcol, 1.0);\n");
}
else if (input->oglbuiltin == GPU_COLOR) {
BLI_dynstr_appendf(ds, "\tgl_FrontColor = gl_Color;\n");
}
}
BLI_dynstr_append(ds, "}\n\n");
code = BLI_dynstr_get_cstring(ds);
BLI_dynstr_free(ds);
#if 0
if (G.debug & G_DEBUG) printf("%s\n", code);
#endif
return code;
}
