[Mesa-dev] [PATCH 3/3] glsl: Update builtin variables for GLSL 1.40.
Eric Anholt
eric at anholt.net
Fri Mar 9 13:27:21 PST 2012
Mostly this is a matter of removing variables that have been moved to
the compatibility profile. There's one addition: gl_InstanceID is
present in the core now.
This fixes the new piglit tests for GLSL 1.40 builtins.
---
src/glsl/builtin_variables.cpp | 259 +++++++++++++++++++++++-----------------
1 files changed, 150 insertions(+), 109 deletions(-)
diff --git a/src/glsl/builtin_variables.cpp b/src/glsl/builtin_variables.cpp
index 26deeeb..516a69c 100644
--- a/src/glsl/builtin_variables.cpp
+++ b/src/glsl/builtin_variables.cpp
@@ -528,25 +528,30 @@ generate_100ES_uniforms(exec_list *instructions,
static void
generate_110_uniforms(exec_list *instructions,
- struct _mesa_glsl_parse_state *state)
+ struct _mesa_glsl_parse_state *state,
+ bool add_deprecated)
{
glsl_symbol_table *const symtab = state->symbols;
- for (unsigned i = 0
- ; i < Elements(builtin_110_deprecated_uniforms)
- ; i++) {
- add_builtin_variable(instructions, symtab,
- & builtin_110_deprecated_uniforms[i]);
+ if (add_deprecated) {
+ for (unsigned i = 0
+ ; i < Elements(builtin_110_deprecated_uniforms)
+ ; i++) {
+ add_builtin_variable(instructions, symtab,
+ & builtin_110_deprecated_uniforms[i]);
+ }
}
- add_builtin_constant(instructions, symtab, "gl_MaxLights",
- state->Const.MaxLights);
- add_builtin_constant(instructions, symtab, "gl_MaxClipPlanes",
- state->Const.MaxClipPlanes);
- add_builtin_constant(instructions, symtab, "gl_MaxTextureUnits",
- state->Const.MaxTextureUnits);
- add_builtin_constant(instructions, symtab, "gl_MaxTextureCoords",
- state->Const.MaxTextureCoords);
+ if (add_deprecated) {
+ add_builtin_constant(instructions, symtab, "gl_MaxLights",
+ state->Const.MaxLights);
+ add_builtin_constant(instructions, symtab, "gl_MaxClipPlanes",
+ state->Const.MaxClipPlanes);
+ add_builtin_constant(instructions, symtab, "gl_MaxTextureUnits",
+ state->Const.MaxTextureUnits);
+ add_builtin_constant(instructions, symtab, "gl_MaxTextureCoords",
+ state->Const.MaxTextureCoords);
+ }
add_builtin_constant(instructions, symtab, "gl_MaxVertexAttribs",
state->Const.MaxVertexAttribs);
add_builtin_constant(instructions, symtab, "gl_MaxVertexUniformComponents",
@@ -562,65 +567,69 @@ generate_110_uniforms(exec_list *instructions,
add_builtin_constant(instructions, symtab, "gl_MaxFragmentUniformComponents",
state->Const.MaxFragmentUniformComponents);
- const glsl_type *const mat4_array_type =
- glsl_type::get_array_instance(glsl_type::mat4_type,
- state->Const.MaxTextureCoords);
+ if (add_deprecated) {
+ const glsl_type *const mat4_array_type =
+ glsl_type::get_array_instance(glsl_type::mat4_type,
+ state->Const.MaxTextureCoords);
- add_uniform(instructions, symtab, "gl_TextureMatrix", mat4_array_type);
- add_uniform(instructions, symtab, "gl_TextureMatrixInverse", mat4_array_type);
- add_uniform(instructions, symtab, "gl_TextureMatrixTranspose", mat4_array_type);
- add_uniform(instructions, symtab, "gl_TextureMatrixInverseTranspose", mat4_array_type);
+ add_uniform(instructions, symtab, "gl_TextureMatrix", mat4_array_type);
+ add_uniform(instructions, symtab, "gl_TextureMatrixInverse", mat4_array_type);
+ add_uniform(instructions, symtab, "gl_TextureMatrixTranspose", mat4_array_type);
+ add_uniform(instructions, symtab, "gl_TextureMatrixInverseTranspose", mat4_array_type);
+ }
add_uniform(instructions, symtab, "gl_DepthRange",
symtab->get_type("gl_DepthRangeParameters"));
- add_uniform(instructions, symtab, "gl_ClipPlane",
- glsl_type::get_array_instance(glsl_type::vec4_type,
- state->Const.MaxClipPlanes));
- add_uniform(instructions, symtab, "gl_Point",
- symtab->get_type("gl_PointParameters"));
-
- const glsl_type *const material_parameters_type =
- symtab->get_type("gl_MaterialParameters");
- add_uniform(instructions, symtab, "gl_FrontMaterial", material_parameters_type);
- add_uniform(instructions, symtab, "gl_BackMaterial", material_parameters_type);
-
- const glsl_type *const light_source_array_type =
- glsl_type::get_array_instance(symtab->get_type("gl_LightSourceParameters"), state->Const.MaxLights);
-
- add_uniform(instructions, symtab, "gl_LightSource", light_source_array_type);
-
- const glsl_type *const light_model_products_type =
- symtab->get_type("gl_LightModelProducts");
- add_uniform(instructions, symtab, "gl_FrontLightModelProduct",
- light_model_products_type);
- add_uniform(instructions, symtab, "gl_BackLightModelProduct",
- light_model_products_type);
-
- const glsl_type *const light_products_type =
- glsl_type::get_array_instance(symtab->get_type("gl_LightProducts"),
- state->Const.MaxLights);
- add_uniform(instructions, symtab, "gl_FrontLightProduct", light_products_type);
- add_uniform(instructions, symtab, "gl_BackLightProduct", light_products_type);
-
- add_uniform(instructions, symtab, "gl_TextureEnvColor",
- glsl_type::get_array_instance(glsl_type::vec4_type,
- state->Const.MaxTextureUnits));
-
- const glsl_type *const texcoords_vec4 =
- glsl_type::get_array_instance(glsl_type::vec4_type,
- state->Const.MaxTextureCoords);
- add_uniform(instructions, symtab, "gl_EyePlaneS", texcoords_vec4);
- add_uniform(instructions, symtab, "gl_EyePlaneT", texcoords_vec4);
- add_uniform(instructions, symtab, "gl_EyePlaneR", texcoords_vec4);
- add_uniform(instructions, symtab, "gl_EyePlaneQ", texcoords_vec4);
- add_uniform(instructions, symtab, "gl_ObjectPlaneS", texcoords_vec4);
- add_uniform(instructions, symtab, "gl_ObjectPlaneT", texcoords_vec4);
- add_uniform(instructions, symtab, "gl_ObjectPlaneR", texcoords_vec4);
- add_uniform(instructions, symtab, "gl_ObjectPlaneQ", texcoords_vec4);
-
- add_uniform(instructions, symtab, "gl_Fog",
- symtab->get_type("gl_FogParameters"));
+ if (add_deprecated) {
+ add_uniform(instructions, symtab, "gl_ClipPlane",
+ glsl_type::get_array_instance(glsl_type::vec4_type,
+ state->Const.MaxClipPlanes));
+ add_uniform(instructions, symtab, "gl_Point",
+ symtab->get_type("gl_PointParameters"));
+
+ const glsl_type *const material_parameters_type =
+ symtab->get_type("gl_MaterialParameters");
+ add_uniform(instructions, symtab, "gl_FrontMaterial", material_parameters_type);
+ add_uniform(instructions, symtab, "gl_BackMaterial", material_parameters_type);
+
+ const glsl_type *const light_source_array_type =
+ glsl_type::get_array_instance(symtab->get_type("gl_LightSourceParameters"), state->Const.MaxLights);
+
+ add_uniform(instructions, symtab, "gl_LightSource", light_source_array_type);
+
+ const glsl_type *const light_model_products_type =
+ symtab->get_type("gl_LightModelProducts");
+ add_uniform(instructions, symtab, "gl_FrontLightModelProduct",
+ light_model_products_type);
+ add_uniform(instructions, symtab, "gl_BackLightModelProduct",
+ light_model_products_type);
+
+ const glsl_type *const light_products_type =
+ glsl_type::get_array_instance(symtab->get_type("gl_LightProducts"),
+ state->Const.MaxLights);
+ add_uniform(instructions, symtab, "gl_FrontLightProduct", light_products_type);
+ add_uniform(instructions, symtab, "gl_BackLightProduct", light_products_type);
+
+ add_uniform(instructions, symtab, "gl_TextureEnvColor",
+ glsl_type::get_array_instance(glsl_type::vec4_type,
+ state->Const.MaxTextureUnits));
+
+ const glsl_type *const texcoords_vec4 =
+ glsl_type::get_array_instance(glsl_type::vec4_type,
+ state->Const.MaxTextureCoords);
+ add_uniform(instructions, symtab, "gl_EyePlaneS", texcoords_vec4);
+ add_uniform(instructions, symtab, "gl_EyePlaneT", texcoords_vec4);
+ add_uniform(instructions, symtab, "gl_EyePlaneR", texcoords_vec4);
+ add_uniform(instructions, symtab, "gl_EyePlaneQ", texcoords_vec4);
+ add_uniform(instructions, symtab, "gl_ObjectPlaneS", texcoords_vec4);
+ add_uniform(instructions, symtab, "gl_ObjectPlaneT", texcoords_vec4);
+ add_uniform(instructions, symtab, "gl_ObjectPlaneR", texcoords_vec4);
+ add_uniform(instructions, symtab, "gl_ObjectPlaneQ", texcoords_vec4);
+
+ add_uniform(instructions, symtab, "gl_Fog",
+ symtab->get_type("gl_FogParameters"));
+ }
/* Mesa-internal current attrib state */
const glsl_type *const vert_attribs =
@@ -650,20 +659,23 @@ generate_100ES_vs_variables(exec_list *instructions,
static void
generate_110_vs_variables(exec_list *instructions,
- struct _mesa_glsl_parse_state *state)
+ struct _mesa_glsl_parse_state *state,
+ bool add_deprecated)
{
for (unsigned i = 0; i < Elements(builtin_core_vs_variables); i++) {
add_builtin_variable(instructions, state->symbols,
& builtin_core_vs_variables[i]);
}
- for (unsigned i = 0
- ; i < Elements(builtin_110_deprecated_vs_variables)
- ; i++) {
- add_builtin_variable(instructions, state->symbols,
- & builtin_110_deprecated_vs_variables[i]);
+ if (add_deprecated) {
+ for (unsigned i = 0
+ ; i < Elements(builtin_110_deprecated_vs_variables)
+ ; i++) {
+ add_builtin_variable(instructions, state->symbols,
+ & builtin_110_deprecated_vs_variables[i]);
+ }
}
- generate_110_uniforms(instructions, state);
+ generate_110_uniforms(instructions, state, add_deprecated);
/* From page 54 (page 60 of the PDF) of the GLSL 1.20 spec:
*
@@ -686,12 +698,13 @@ generate_110_vs_variables(exec_list *instructions,
static void
generate_120_vs_variables(exec_list *instructions,
- struct _mesa_glsl_parse_state *state)
+ struct _mesa_glsl_parse_state *state,
+ bool add_deprecated)
{
/* GLSL version 1.20 did not add any built-in variables in the vertex
* shader.
*/
- generate_110_vs_variables(instructions, state);
+ generate_110_vs_variables(instructions, state, add_deprecated);
}
@@ -710,9 +723,10 @@ generate_130_uniforms(exec_list *instructions,
static void
generate_130_vs_variables(exec_list *instructions,
- struct _mesa_glsl_parse_state *state)
+ struct _mesa_glsl_parse_state *state,
+ bool add_deprecated)
{
- generate_120_vs_variables(instructions, state);
+ generate_120_vs_variables(instructions, state, add_deprecated);
for (unsigned i = 0; i < Elements(builtin_130_vs_variables); i++) {
add_builtin_variable(instructions, state->symbols,
@@ -751,22 +765,21 @@ initialize_vs_variables(exec_list *instructions,
generate_100ES_vs_variables(instructions, state);
break;
case 110:
- generate_110_vs_variables(instructions, state);
+ generate_110_vs_variables(instructions, state, true);
break;
case 120:
- generate_120_vs_variables(instructions, state);
+ generate_120_vs_variables(instructions, state, true);
break;
case 130:
- generate_130_vs_variables(instructions, state);
+ generate_130_vs_variables(instructions, state, true);
break;
case 140:
- generate_130_vs_variables(instructions, state);
+ generate_130_vs_variables(instructions, state, false);
break;
}
- if (state->ARB_draw_instanced_enable)
- generate_ARB_draw_instanced_variables(instructions, state, false,
- vertex_shader);
+ generate_ARB_draw_instanced_variables(instructions, state, false,
+ vertex_shader);
}
@@ -793,7 +806,8 @@ generate_100ES_fs_variables(exec_list *instructions,
static void
generate_110_fs_variables(exec_list *instructions,
- struct _mesa_glsl_parse_state *state)
+ struct _mesa_glsl_parse_state *state,
+ bool add_deprecated)
{
for (unsigned i = 0; i < Elements(builtin_core_fs_variables); i++) {
add_builtin_variable(instructions, state->symbols,
@@ -805,13 +819,16 @@ generate_110_fs_variables(exec_list *instructions,
& builtin_110_fs_variables[i]);
}
- for (unsigned i = 0
- ; i < Elements(builtin_110_deprecated_fs_variables)
- ; i++) {
- add_builtin_variable(instructions, state->symbols,
- & builtin_110_deprecated_fs_variables[i]);
+ if (add_deprecated) {
+ for (unsigned i = 0
+ ; i < Elements(builtin_110_deprecated_fs_variables)
+ ; i++) {
+ add_builtin_variable(instructions, state->symbols,
+ & builtin_110_deprecated_fs_variables[i]);
+ }
}
- generate_110_uniforms(instructions, state);
+
+ generate_110_uniforms(instructions, state, add_deprecated);
/* From page 54 (page 60 of the PDF) of the GLSL 1.20 spec:
*
@@ -872,7 +889,10 @@ generate_ARB_draw_instanced_variables(exec_list *instructions,
{
/* gl_InstanceIDARB is only available in the vertex shader.
*/
- if (target == vertex_shader) {
+ if (target != vertex_shader)
+ return;
+
+ if (state->ARB_draw_instanced_enable) {
ir_variable *inst =
add_variable(instructions, state->symbols,
"gl_InstanceIDARB", glsl_type::int_type,
@@ -880,17 +900,20 @@ generate_ARB_draw_instanced_variables(exec_list *instructions,
if (warn)
inst->warn_extension = "GL_ARB_draw_instanced";
+ }
+ if (state->ARB_draw_instanced_enable || state->language_version >= 140) {
/* Originally ARB_draw_instanced only specified that ARB decorated name.
* Since no vendor actually implemented that behavior and some apps use
* the undecorated name, the extension now specifies that both names are
* available.
*/
- inst = add_variable(instructions, state->symbols,
- "gl_InstanceID", glsl_type::int_type,
- ir_var_system_value, SYSTEM_VALUE_INSTANCE_ID);
+ ir_variable *inst =
+ add_variable(instructions, state->symbols,
+ "gl_InstanceID", glsl_type::int_type,
+ ir_var_system_value, SYSTEM_VALUE_INSTANCE_ID);
- if (warn)
+ if (state->language_version < 140 && warn)
inst->warn_extension = "GL_ARB_draw_instanced";
}
}
@@ -930,9 +953,10 @@ generate_AMD_shader_stencil_export_variables(exec_list *instructions,
static void
generate_120_fs_variables(exec_list *instructions,
- struct _mesa_glsl_parse_state *state)
+ struct _mesa_glsl_parse_state *state,
+ bool add_deprecated)
{
- generate_110_fs_variables(instructions, state);
+ generate_110_fs_variables(instructions, state, add_deprecated);
for (unsigned i = 0
; i < Elements(builtin_120_fs_variables)
@@ -943,13 +967,9 @@ generate_120_fs_variables(exec_list *instructions,
}
static void
-generate_130_fs_variables(exec_list *instructions,
- struct _mesa_glsl_parse_state *state)
+generate_fs_clipdistance(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state)
{
- generate_120_fs_variables(instructions, state);
-
- generate_130_uniforms(instructions, state);
-
/* From the GLSL 1.30 spec, section 7.2 (Fragment Shader Special
* Variables):
*
@@ -971,6 +991,27 @@ generate_130_fs_variables(exec_list *instructions,
}
static void
+generate_130_fs_variables(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state)
+{
+ generate_120_fs_variables(instructions, state, true);
+
+ generate_130_uniforms(instructions, state);
+ generate_fs_clipdistance(instructions, state);
+}
+
+
+static void
+generate_140_fs_variables(exec_list *instructions,
+ struct _mesa_glsl_parse_state *state)
+{
+ generate_120_fs_variables(instructions, state, false);
+
+ generate_130_uniforms(instructions, state);
+ generate_fs_clipdistance(instructions, state);
+}
+
+static void
initialize_fs_variables(exec_list *instructions,
struct _mesa_glsl_parse_state *state)
{
@@ -980,16 +1021,16 @@ initialize_fs_variables(exec_list *instructions,
generate_100ES_fs_variables(instructions, state);
break;
case 110:
- generate_110_fs_variables(instructions, state);
+ generate_110_fs_variables(instructions, state, true);
break;
case 120:
- generate_120_fs_variables(instructions, state);
+ generate_120_fs_variables(instructions, state, true);
break;
case 130:
generate_130_fs_variables(instructions, state);
break;
case 140:
- generate_130_fs_variables(instructions, state);
+ generate_140_fs_variables(instructions, state);
break;
}
--
1.7.9.1
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