#include "program/prog_statevars.h"
#include "program/prog_instruction.h"
+static struct gl_builtin_uniform_element gl_NumSamples_elements[] = {
+ {NULL, {STATE_NUM_SAMPLES, 0, 0}, SWIZZLE_XXXX}
+};
static struct gl_builtin_uniform_element gl_DepthRange_elements[] = {
{"near", {STATE_DEPTH_RANGE, 0, 0}, SWIZZLE_XXXX},
#define STATEVAR(name) {#name, name ## _elements, Elements(name ## _elements)}
static const struct gl_builtin_uniform_desc _mesa_builtin_uniform_desc[] = {
+ STATEVAR(gl_NumSamples),
STATEVAR(gl_DepthRange),
STATEVAR(gl_ClipPlane),
STATEVAR(gl_Point),
per_vertex_accumulator::per_vertex_accumulator()
- : num_fields(0)
+ : fields(),
+ num_fields(0)
{
}
this->fields[this->num_fields].name = name;
this->fields[this->num_fields].row_major = false;
this->fields[this->num_fields].location = slot;
+ this->fields[this->num_fields].interpolation = INTERP_QUALIFIER_NONE;
+ this->fields[this->num_fields].centroid = 0;
+ this->fields[this->num_fields].sample = 0;
this->num_fields++;
}
void generate_vs_special_vars();
void generate_gs_special_vars();
void generate_fs_special_vars();
+ void generate_cs_special_vars();
void generate_varyings();
private:
enum ir_variable_mode mode, int slot);
ir_variable *add_uniform(const glsl_type *type, const char *name);
ir_variable *add_const(const char *name, int value);
+ ir_variable *add_const_ivec3(const char *name, int x, int y, int z);
void add_varying(int slot, const glsl_type *type, const char *name,
const char *name_as_gs_input);
enum ir_variable_mode mode, int slot)
{
ir_variable *var = new(symtab) ir_variable(type, name, mode);
+ var->data.how_declared = ir_var_declared_implicitly;
- switch (var->mode) {
+ switch (var->data.mode) {
case ir_var_auto:
case ir_var_shader_in:
case ir_var_uniform:
case ir_var_system_value:
- var->read_only = true;
+ var->data.read_only = true;
break;
case ir_var_shader_out:
break;
break;
}
- var->location = slot;
- var->explicit_location = (slot >= 0);
- var->explicit_index = 0;
+ var->data.location = slot;
+ var->data.explicit_location = (slot >= 0);
+ var->data.explicit_index = 0;
/* Once the variable is created an initialized, add it to the symbol table
* and add the declaration to the IR stream.
ir_var_auto, -1);
var->constant_value = new(var) ir_constant(value);
var->constant_initializer = new(var) ir_constant(value);
- var->has_initializer = true;
+ var->data.has_initializer = true;
+ return var;
+}
+
+
+ir_variable *
+builtin_variable_generator::add_const_ivec3(const char *name, int x, int y,
+ int z)
+{
+ ir_variable *const var = add_variable(name, glsl_type::ivec3_type,
+ ir_var_auto, -1);
+ ir_constant_data data;
+ memset(&data, 0, sizeof(data));
+ data.i[0] = x;
+ data.i[1] = y;
+ data.i[2] = z;
+ var->constant_value = new(var) ir_constant(glsl_type::ivec3_type, &data);
+ var->constant_initializer =
+ new(var) ir_constant(glsl_type::ivec3_type, &data);
+ var->data.has_initializer = true;
return var;
}
*/
if (state->is_version(0, 300)) {
add_const("gl_MaxVertexOutputVectors",
- state->ctx->Const.VertexProgram.MaxOutputComponents / 4);
+ state->ctx->Const.Program[MESA_SHADER_VERTEX].MaxOutputComponents / 4);
add_const("gl_MaxFragmentInputVectors",
- state->ctx->Const.FragmentProgram.MaxInputComponents / 4);
+ state->ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxInputComponents / 4);
} else {
add_const("gl_MaxVaryingVectors",
state->ctx->Const.MaxVarying);
add_const("gl_MaxVaryingComponents", state->ctx->Const.MaxVarying * 4);
}
+ if (state->is_version(150, 0)) {
+ add_const("gl_MaxVertexOutputComponents",
+ state->Const.MaxVertexOutputComponents);
+ add_const("gl_MaxGeometryInputComponents",
+ state->Const.MaxGeometryInputComponents);
+ add_const("gl_MaxGeometryOutputComponents",
+ state->Const.MaxGeometryOutputComponents);
+ add_const("gl_MaxFragmentInputComponents",
+ state->Const.MaxFragmentInputComponents);
+ add_const("gl_MaxGeometryTextureImageUnits",
+ state->Const.MaxGeometryTextureImageUnits);
+ add_const("gl_MaxGeometryOutputVertices",
+ state->Const.MaxGeometryOutputVertices);
+ add_const("gl_MaxGeometryTotalOutputComponents",
+ state->Const.MaxGeometryTotalOutputComponents);
+ add_const("gl_MaxGeometryUniformComponents",
+ state->Const.MaxGeometryUniformComponents);
+
+ /* Note: the GLSL 1.50-4.40 specs require
+ * gl_MaxGeometryVaryingComponents to be present, and to be at least 64.
+ * But they do not define what it means (and there does not appear to be
+ * any corresponding constant in the GL specs). However,
+ * ARB_geometry_shader4 defines MAX_GEOMETRY_VARYING_COMPONENTS_ARB to
+ * be the maximum number of components available for use as geometry
+ * outputs. So we assume this is a synonym for
+ * gl_MaxGeometryOutputComponents.
+ */
+ add_const("gl_MaxGeometryVaryingComponents",
+ state->Const.MaxGeometryOutputComponents);
+ }
+
if (compatibility) {
/* Note: gl_MaxLights stopped being listed as an explicit constant in
* GLSL 1.30, however it continues to be referred to (as a minimum size
*/
add_const("gl_MaxTextureCoords", state->Const.MaxTextureCoords);
}
+
+ if (state->ARB_shader_atomic_counters_enable) {
+ add_const("gl_MaxVertexAtomicCounters",
+ state->Const.MaxVertexAtomicCounters);
+ add_const("gl_MaxGeometryAtomicCounters",
+ state->Const.MaxGeometryAtomicCounters);
+ add_const("gl_MaxFragmentAtomicCounters",
+ state->Const.MaxFragmentAtomicCounters);
+ add_const("gl_MaxCombinedAtomicCounters",
+ state->Const.MaxCombinedAtomicCounters);
+ add_const("gl_MaxAtomicCounterBindings",
+ state->Const.MaxAtomicBufferBindings);
+ add_const("gl_MaxTessControlAtomicCounters", 0);
+ add_const("gl_MaxTessEvaluationAtomicCounters", 0);
+ }
+
+ if (state->is_version(430, 0) || state->ARB_compute_shader_enable) {
+ add_const_ivec3("gl_MaxComputeWorkGroupCount",
+ state->Const.MaxComputeWorkGroupCount[0],
+ state->Const.MaxComputeWorkGroupCount[1],
+ state->Const.MaxComputeWorkGroupCount[2]);
+ add_const_ivec3("gl_MaxComputeWorkGroupSize",
+ state->Const.MaxComputeWorkGroupSize[0],
+ state->Const.MaxComputeWorkGroupSize[1],
+ state->Const.MaxComputeWorkGroupSize[2]);
+
+ /* From the GLSL 4.40 spec, section 7.1 (Built-In Language Variables):
+ *
+ * The built-in constant gl_WorkGroupSize is a compute-shader
+ * constant containing the local work-group size of the shader. The
+ * size of the work group in the X, Y, and Z dimensions is stored in
+ * the x, y, and z components. The constants values in
+ * gl_WorkGroupSize will match those specified in the required
+ * local_size_x, local_size_y, and local_size_z layout qualifiers
+ * for the current shader. This is a constant so that it can be
+ * used to size arrays of memory that can be shared within the local
+ * work group. It is a compile-time error to use gl_WorkGroupSize
+ * in a shader that does not declare a fixed local group size, or
+ * before that shader has declared a fixed local group size, using
+ * local_size_x, local_size_y, and local_size_z.
+ *
+ * To prevent the shader from trying to refer to gl_WorkGroupSize before
+ * the layout declaration, we don't define it here. Intead we define it
+ * in ast_cs_input_layout::hir().
+ */
+ }
+
+ if (state->is_version(420, 0) ||
+ state->ARB_shader_image_load_store_enable) {
+ add_const("gl_MaxImageUnits",
+ state->Const.MaxImageUnits);
+ add_const("gl_MaxCombinedImageUnitsAndFragmentOutputs",
+ state->Const.MaxCombinedImageUnitsAndFragmentOutputs);
+ add_const("gl_MaxImageSamples",
+ state->Const.MaxImageSamples);
+ add_const("gl_MaxVertexImageUniforms",
+ state->Const.MaxVertexImageUniforms);
+ add_const("gl_MaxTessControlImageUniforms", 0);
+ add_const("gl_MaxTessEvaluationImageUniforms", 0);
+ add_const("gl_MaxGeometryImageUniforms",
+ state->Const.MaxGeometryImageUniforms);
+ add_const("gl_MaxFragmentImageUniforms",
+ state->Const.MaxFragmentImageUniforms);
+ add_const("gl_MaxCombinedImageUniforms",
+ state->Const.MaxCombinedImageUniforms);
+ }
}
void
builtin_variable_generator::generate_uniforms()
{
+ add_uniform(int_t, "gl_NumSamples");
add_uniform(type("gl_DepthRangeParameters"), "gl_DepthRange");
add_uniform(array(vec4_t, VERT_ATTRIB_MAX), "gl_CurrentAttribVertMESA");
add_uniform(array(vec4_t, VARYING_SLOT_MAX), "gl_CurrentAttribFragMESA");
builtin_variable_generator::generate_gs_special_vars()
{
add_output(VARYING_SLOT_LAYER, int_t, "gl_Layer");
+ if (state->ARB_viewport_array_enable)
+ add_output(VARYING_SLOT_VIEWPORT, int_t, "gl_ViewportIndex");
+ if (state->ARB_gpu_shader5_enable)
+ add_system_value(SYSTEM_VALUE_INVOCATION_ID, int_t, "gl_InvocationID");
/* Although gl_PrimitiveID appears in tessellation control and tessellation
* evaluation shaders, it has a different function there than it has in
*/
ir_variable *var;
var = add_input(VARYING_SLOT_PRIMITIVE_ID, int_t, "gl_PrimitiveIDIn");
- var->interpolation = INTERP_QUALIFIER_FLAT;
+ var->data.interpolation = INTERP_QUALIFIER_FLAT;
var = add_output(VARYING_SLOT_PRIMITIVE_ID, int_t, "gl_PrimitiveID");
- var->interpolation = INTERP_QUALIFIER_FLAT;
+ var->data.interpolation = INTERP_QUALIFIER_FLAT;
}
if (state->is_version(150, 0)) {
ir_variable *var =
add_input(VARYING_SLOT_PRIMITIVE_ID, int_t, "gl_PrimitiveID");
- var->interpolation = INTERP_QUALIFIER_FLAT;
+ var->data.interpolation = INTERP_QUALIFIER_FLAT;
}
/* gl_FragColor and gl_FragData were deprecated starting in desktop GLSL
if (state->AMD_shader_stencil_export_warn)
var->warn_extension = "GL_AMD_shader_stencil_export";
}
+
+ if (state->ARB_sample_shading_enable) {
+ add_system_value(SYSTEM_VALUE_SAMPLE_ID, int_t, "gl_SampleID");
+ add_system_value(SYSTEM_VALUE_SAMPLE_POS, vec2_t, "gl_SamplePosition");
+ /* From the ARB_sample_shading specification:
+ * "The number of elements in the array is ceil(<s>/32), where
+ * <s> is the maximum number of color samples supported by the
+ * implementation."
+ * Since no drivers expose more than 32x MSAA, we can simply set
+ * the array size to 1 rather than computing it.
+ */
+ add_output(FRAG_RESULT_SAMPLE_MASK, array(int_t, 1), "gl_SampleMask");
+ }
+
+ if (state->ARB_gpu_shader5_enable) {
+ add_system_value(SYSTEM_VALUE_SAMPLE_MASK_IN, array(int_t, 1), "gl_SampleMaskIn");
+ }
+}
+
+
+/**
+ * Generate variables which only exist in compute shaders.
+ */
+void
+builtin_variable_generator::generate_cs_special_vars()
+{
+ /* TODO: finish this. */
}
const char *name,
const char *name_as_gs_input)
{
- switch (state->target) {
- case geometry_shader:
+ switch (state->stage) {
+ case MESA_SHADER_GEOMETRY:
this->per_vertex_in.add_field(slot, type, name);
/* FALLTHROUGH */
- case vertex_shader:
+ case MESA_SHADER_VERTEX:
this->per_vertex_out.add_field(slot, type, name);
break;
- case fragment_shader:
+ case MESA_SHADER_FRAGMENT:
add_input(slot, type, name);
break;
+ case MESA_SHADER_COMPUTE:
+ /* Compute shaders don't have varyings. */
+ break;
}
}
add_varying(loc, type, name, name "In")
/* gl_Position and gl_PointSize are not visible from fragment shaders. */
- if (state->target != fragment_shader) {
+ if (state->stage != MESA_SHADER_FRAGMENT) {
ADD_VARYING(VARYING_SLOT_POS, vec4_t, "gl_Position");
ADD_VARYING(VARYING_SLOT_PSIZ, float_t, "gl_PointSize");
}
if (compatibility) {
ADD_VARYING(VARYING_SLOT_TEX0, array(vec4_t, 0), "gl_TexCoord");
ADD_VARYING(VARYING_SLOT_FOGC, float_t, "gl_FogFragCoord");
- if (state->target == fragment_shader) {
+ if (state->stage == MESA_SHADER_FRAGMENT) {
ADD_VARYING(VARYING_SLOT_COL0, vec4_t, "gl_Color");
ADD_VARYING(VARYING_SLOT_COL1, vec4_t, "gl_SecondaryColor");
} else {
}
}
- if (state->target == geometry_shader) {
+ if (state->stage == MESA_SHADER_GEOMETRY) {
const glsl_type *per_vertex_in_type =
this->per_vertex_in.construct_interface_instance();
- ir_variable *var = add_variable("gl_in", array(per_vertex_in_type, 0),
- ir_var_shader_in, -1);
- var->init_interface_type(per_vertex_in_type);
+ add_variable("gl_in", array(per_vertex_in_type, 0),
+ ir_var_shader_in, -1);
}
- if (state->target == vertex_shader || state->target == geometry_shader) {
+ if (state->stage == MESA_SHADER_VERTEX || state->stage == MESA_SHADER_GEOMETRY) {
const glsl_type *per_vertex_out_type =
this->per_vertex_out.construct_interface_instance();
const glsl_struct_field *fields = per_vertex_out_type->fields.structure;
ir_variable *var =
add_variable(fields[i].name, fields[i].type, ir_var_shader_out,
fields[i].location);
+ var->data.interpolation = fields[i].interpolation;
+ var->data.centroid = fields[i].centroid;
+ var->data.sample = fields[i].sample;
var->init_interface_type(per_vertex_out_type);
}
}
gen.generate_varyings();
- switch (state->target) {
- case vertex_shader:
+ switch (state->stage) {
+ case MESA_SHADER_VERTEX:
gen.generate_vs_special_vars();
break;
- case geometry_shader:
+ case MESA_SHADER_GEOMETRY:
gen.generate_gs_special_vars();
break;
- case fragment_shader:
+ case MESA_SHADER_FRAGMENT:
gen.generate_fs_special_vars();
break;
+ case MESA_SHADER_COMPUTE:
+ gen.generate_cs_special_vars();
+ break;
}
}
projects / mesa.git / blobdiff