glsl: New unary opcodes for ARB_shader_bit_encoding support.

The opcodes are bitcast_f2u, bitcast_f2i, bitcast_i2f and bitcast_u2f.

Signed-off-by: Olivier Galibert <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>

4 files changed, 84 insertions, 0 deletions

diff --git a/src/glsl/builtins/ir/floatBitsToInt.ir b/src/glsl/builtins/ir/floatBitsToInt.ir
new file mode 100644
index 00000000000..a5db4b3269a
--- /dev/null
+++ b/src/glsl/builtins/ir/floatBitsToInt.ir
@@ -0,0 +1,21 @@
+((function floatBitsToInt
+   (signature int
+     (parameters
+       (declare (in) float arg))
+     ((return (expression int bitcast_f2i (var_ref arg)))))
+
+   (signature ivec2
+     (parameters
+       (declare (in) vec2 arg))
+     ((return (expression ivec2 bitcast_f2i (var_ref arg)))))
+
+   (signature ivec3
+     (parameters
+       (declare (in) vec3 arg))
+     ((return (expression ivec3 bitcast_f2i (var_ref arg)))))
+
+   (signature ivec4
+     (parameters
+       (declare (in) vec4 arg))
+     ((return (expression ivec4 bitcast_f2i (var_ref arg)))))
+))
diff --git a/src/glsl/builtins/ir/floatBitsToUint.ir b/src/glsl/builtins/ir/floatBitsToUint.ir
new file mode 100644
index 00000000000..09463bd9a75
--- /dev/null
+++ b/src/glsl/builtins/ir/floatBitsToUint.ir
@@ -0,0 +1,21 @@
+((function floatBitsToUint
+   (signature uint
+     (parameters
+       (declare (in) float arg))
+     ((return (expression uint bitcast_f2u (var_ref arg)))))
+
+   (signature uvec2
+     (parameters
+       (declare (in) vec2 arg))
+     ((return (expression uvec2 bitcast_f2u (var_ref arg)))))
+
+   (signature uvec3
+     (parameters
+       (declare (in) vec3 arg))
+     ((return (expression uvec3 bitcast_f2u (var_ref arg)))))
+
+   (signature uvec4
+     (parameters
+       (declare (in) vec4 arg))
+     ((return (expression uvec4 bitcast_f2u (var_ref arg)))))
+))
diff --git a/src/glsl/builtins/ir/intBitsToFloat.ir b/src/glsl/builtins/ir/intBitsToFloat.ir
new file mode 100644
index 00000000000..cc6aafe1adc
--- /dev/null
+++ b/src/glsl/builtins/ir/intBitsToFloat.ir
@@ -0,0 +1,21 @@
+((function intBitsToFloat
+   (signature float
+     (parameters
+       (declare (in) int arg))
+     ((return (expression float bitcast_i2f (var_ref arg)))))
+
+   (signature vec2
+     (parameters
+       (declare (in) ivec2 arg))
+     ((return (expression vec2 bitcast_i2f (var_ref arg)))))
+
+   (signature vec3
+     (parameters
+       (declare (in) ivec3 arg))
+     ((return (expression vec3 bitcast_i2f (var_ref arg)))))
+
+   (signature vec4
+     (parameters
+       (declare (in) ivec4 arg))
+     ((return (expression vec4 bitcast_i2f (var_ref arg)))))
+))
diff --git a/src/glsl/builtins/ir/uintBitsToFloat.ir b/src/glsl/builtins/ir/uintBitsToFloat.ir
new file mode 100644
index 00000000000..1073d761898
--- /dev/null
+++ b/src/glsl/builtins/ir/uintBitsToFloat.ir
@@ -0,0 +1,21 @@
+((function uintBitsToFloat
+   (signature float
+     (parameters
+       (declare (in) uint arg))
+     ((return (expression float bitcast_u2f (var_ref arg)))))
+
+   (signature vec2
+     (parameters
+       (declare (in) uvec2 arg))
+     ((return (expression vec2 bitcast_u2f (var_ref arg)))))
+
+   (signature vec3
+     (parameters
+       (declare (in) uvec3 arg))
+     ((return (expression vec3 bitcast_u2f (var_ref arg)))))
+
+   (signature vec4
+     (parameters
+       (declare (in) uvec4 arg))
+     ((return (expression vec4 bitcast_u2f (var_ref arg)))))
+))