This extension is a combination of AMD_vertex_shader_viewport_index and
AMD_vertex_shader_layer, making it rather trivial to implement.
For gallium I *think* this needs a new cap because of the addition of
support in tessellation evaluation shaders, and since I don't have any
hardware to test it on, I've left that for someone else to wire up.
Since this requires GL 4.1, this is only available on gen8+.
Signed-off-by: Dylan Baker <dylanx.c.ba...@intel.com>
---
docs/features.txt | 2 +-
docs/relnotes/12.1.0.html | 1 +
src/compiler/glsl/builtin_variables.cpp | 14 ++++++++++++--
src/compiler/glsl/glsl_parser_extras.cpp | 1 +
src/compiler/glsl/glsl_parser_extras.h | 2 ++
src/mesa/drivers/dri/i965/intel_extensions.c | 1 +
src/mesa/main/extensions_table.h | 1 +
src/mesa/main/mtypes.h | 1 +
8 files changed, 20 insertions(+), 3 deletions(-)
diff --git a/docs/features.txt b/docs/features.txt
index d6c3240..4b39a1c 100644
--- a/docs/features.txt
+++ b/docs/features.txt
@@ -296,7 +296,7 @@ Khronos, ARB, and OES extensions that are not part of any
OpenGL or OpenGL ES ve
GL_ARB_shader_draw_parameters DONE (i965, nvc0,
radeonsi)
GL_ARB_shader_group_vote DONE (nvc0)
GL_ARB_shader_stencil_export DONE (i965/gen9+,
radeonsi, softpipe, llvmpipe, swr)
- GL_ARB_shader_viewport_layer_array not started
+ GL_ARB_shader_viewport_layer_array DONE (i965/gen8+)
GL_ARB_sparse_buffer not started
GL_ARB_sparse_texture not started
GL_ARB_sparse_texture2 not started
diff --git a/docs/relnotes/12.1.0.html b/docs/relnotes/12.1.0.html
index bb20e4f..1a0177c 100644
--- a/docs/relnotes/12.1.0.html
+++ b/docs/relnotes/12.1.0.html
@@ -52,6 +52,7 @@ Note: some of the new features are only available with
certain drivers.
<li>GL_ARB_indirect_parameters on radeonsi</li>
<li>GL_ARB_shader_draw_parameters on radeonsi</li>
<li>GL_ARB_shader_group_vote on nvc0</li>
+<li>GL_ARB_shader_viewport_layer_array on i965/gen8+</li>
<li>GL_ARB_stencil_texturing on i965/hsw</li>
<li>GL_ARB_texture_stencil8 on i965/hsw</li>
<li>GL_EXT_window_rectangles on nv50, nvc0</li>
diff --git a/src/compiler/glsl/builtin_variables.cpp
b/src/compiler/glsl/builtin_variables.cpp
index 90278d6..8d6413e 100644
--- a/src/compiler/glsl/builtin_variables.cpp
+++ b/src/compiler/glsl/builtin_variables.cpp
@@ -1000,11 +1000,13 @@ builtin_variable_generator::generate_vs_special_vars()
add_system_value(SYSTEM_VALUE_BASE_INSTANCE, int_t,
"gl_BaseInstanceARB");
add_system_value(SYSTEM_VALUE_DRAW_ID, int_t, "gl_DrawIDARB");
}
- if (state->AMD_vertex_shader_layer_enable) {
+ if (state->AMD_vertex_shader_layer_enable ||
+ state->ARB_shader_viewport_layer_array_enable) {
var = add_output(VARYING_SLOT_LAYER, int_t, "gl_Layer");
var->data.interpolation = INTERP_MODE_FLAT;
}
- if (state->AMD_vertex_shader_viewport_index_enable) {
+ if (state->AMD_vertex_shader_viewport_index_enable ||
+ state->ARB_shader_viewport_layer_array_enable) {
var = add_output(VARYING_SLOT_VIEWPORT, int_t, "gl_ViewportIndex");
var->data.interpolation = INTERP_MODE_FLAT;
}
@@ -1066,6 +1068,8 @@ builtin_variable_generator::generate_tcs_special_vars()
void
builtin_variable_generator::generate_tes_special_vars()
{
+ ir_variable *var;
+
add_system_value(SYSTEM_VALUE_PRIMITIVE_ID, int_t, "gl_PrimitiveID");
add_system_value(SYSTEM_VALUE_VERTICES_IN, int_t, "gl_PatchVerticesIn");
add_system_value(SYSTEM_VALUE_TESS_COORD, vec3_t, "gl_TessCoord");
@@ -1073,6 +1077,12 @@ builtin_variable_generator::generate_tes_special_vars()
"gl_TessLevelOuter");
add_system_value(SYSTEM_VALUE_TESS_LEVEL_INNER, array(float_t, 2),
"gl_TessLevelInner");
+ if (state->ARB_shader_viewport_layer_array_enable) {
+ var = add_output(VARYING_SLOT_LAYER, int_t, "gl_Layer");
+ var->data.interpolation = INTERP_MODE_FLAT;
+ var = add_output(VARYING_SLOT_VIEWPORT, int_t, "gl_ViewportIndex");
+ var->data.interpolation = INTERP_MODE_FLAT;
+ }
}
diff --git a/src/compiler/glsl/glsl_parser_extras.cpp
b/src/compiler/glsl/glsl_parser_extras.cpp
index 436ddd0..a21ce50 100644
--- a/src/compiler/glsl/glsl_parser_extras.cpp
+++ b/src/compiler/glsl/glsl_parser_extras.cpp
@@ -608,6 +608,7 @@ static const _mesa_glsl_extension
_mesa_glsl_supported_extensions[] = {
EXT(ARB_shader_subroutine),
EXT(ARB_shader_texture_image_samples),
EXT(ARB_shader_texture_lod),
+ EXT(ARB_shader_viewport_layer_array),
EXT(ARB_shading_language_420pack),
EXT(ARB_shading_language_packing),
EXT(ARB_tessellation_shader),
diff --git a/src/compiler/glsl/glsl_parser_extras.h
b/src/compiler/glsl/glsl_parser_extras.h
index e146fe1..19bf265 100644
--- a/src/compiler/glsl/glsl_parser_extras.h
+++ b/src/compiler/glsl/glsl_parser_extras.h
@@ -632,6 +632,8 @@ struct _mesa_glsl_parse_state {
bool ARB_shader_texture_image_samples_warn;
bool ARB_shader_texture_lod_enable;
bool ARB_shader_texture_lod_warn;
+ bool ARB_shader_viewport_layer_array_enable;
+ bool ARB_shader_viewport_layer_array_warn;
bool ARB_shading_language_420pack_enable;
bool ARB_shading_language_420pack_warn;
bool ARB_shading_language_packing_enable;
diff --git a/src/mesa/drivers/dri/i965/intel_extensions.c
b/src/mesa/drivers/dri/i965/intel_extensions.c
index 0f28546..6573bc2 100644
--- a/src/mesa/drivers/dri/i965/intel_extensions.c
+++ b/src/mesa/drivers/dri/i965/intel_extensions.c
@@ -330,6 +330,7 @@ intelInitExtensions(struct gl_context *ctx)
*/
if (ctx->API == API_OPENGL_CORE) {
ctx->Extensions.ARB_shader_subroutine = true;
+ ctx->Extensions.ARB_shader_viewport_layer_array = true;
ctx->Extensions.ARB_viewport_array = true;
ctx->Extensions.AMD_vertex_shader_viewport_index = true;
}
diff --git a/src/mesa/main/extensions_table.h b/src/mesa/main/extensions_table.h
index 75cdcb8..38636b4 100644
--- a/src/mesa/main/extensions_table.h
+++ b/src/mesa/main/extensions_table.h
@@ -115,6 +115,7 @@ EXT(ARB_shader_storage_buffer_object ,
ARB_shader_storage_buffer_object
EXT(ARB_shader_subroutine , ARB_shader_subroutine
, x , GLC, x , x , 2010)
EXT(ARB_shader_texture_image_samples , ARB_shader_texture_image_samples
, GLL, GLC, x , x , 2014)
EXT(ARB_shader_texture_lod , ARB_shader_texture_lod
, GLL, GLC, x , x , 2009)
+EXT(ARB_shader_viewport_layer_array , ARB_shader_viewport_layer_array
, GLL, GLC, x , x , 2015)
EXT(ARB_shading_language_100 , dummy_true
, GLL, x , x , x , 2003)
EXT(ARB_shading_language_420pack , ARB_shading_language_420pack
, GLL, GLC, x , x , 2011)
EXT(ARB_shading_language_packing , ARB_shading_language_packing
, GLL, GLC, x , x , 2011)
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index df93446..4866e8b 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -3871,6 +3871,7 @@ struct gl_extensions
GLboolean ARB_shader_subroutine;
GLboolean ARB_shader_texture_image_samples;
GLboolean ARB_shader_texture_lod;
+ GLboolean ARB_shader_viewport_layer_array;
GLboolean ARB_shading_language_packing;
GLboolean ARB_shading_language_420pack;
GLboolean ARB_shadow;
--
2.9.3
_______________________________________________
mesa-dev mailing list
mesa-dev@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/mesa-dev
