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Refactor: Compositor: Use template instead of macros for compositor_parallel_reduction.glsl

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Rel #143582

This also adds support for C++ compilation of this shader.
See https://developer.blender.org/docs/features/gpu/tools/cpp_shader_compilation/

Pull Request: https://projects.blender.org/blender/blender/pulls/144904
This commit is contained in:
Clément Foucault
2025-10-17 18:38:07 +02:00
committed by Clément Foucault
parent e1ca851276
commit a003b27244
3 changed files with 437 additions and 109 deletions
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9
source/blender/compositor/shaders/CMakeLists.txt
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@@ -1,6 +1,7 @@
# SPDX-FileCopyrightText: 2024 Blender Authors
#
# SPDX-License-Identifier: GPL-2.0-or-later
set(INC_GLSL
.
..
@@ -11,6 +12,7 @@ set(INC_GLSL
../../gpu/shaders/common
../../gpu/shaders/infos
)
set(SRC_GLSL_COMP
# TODO: Port to C++ compilation
# compositor_alpha_crop.glsl
@@ -86,7 +88,7 @@ set(SRC_GLSL_COMP
# compositor_movie_distortion.glsl
# compositor_normalize.glsl
# compositor_pad.glsl
# compositor_parallel_reduction.glsl
compositor_parallel_reduction.glsl
# compositor_pixelate.glsl
# compositor_plane_deform_anisotropic.glsl
# compositor_plane_deform_mask.glsl
@@ -123,13 +125,16 @@ set(SRC_GLSL_COMP
# compositor_z_combine_simple_depth.glsl
# compositor_z_combine_simple_image.glsl
)
set(SRC_GLSL_LIB
library/gpu_shader_compositor_texture_utilities.glsl
)
# Compile shaders with shader code.
if(WITH_GPU_SHADER_CPP_COMPILATION)
with_shader_cpp_compilation_config()
#compile_sources_as_cpp(compositor_cpp_shaders_comp "${SRC_GLSL_COMP}" "GPU_COMPUTE_SHADER")
compile_sources_as_cpp(compositor_cpp_shaders_comp "${SRC_GLSL_COMP}" "GPU_COMPUTE_SHADER")
# Only enable to make sure they compile on their own.
# Otherwise it creates a warning about `pragma once`.
compile_sources_as_cpp(compositor_cpp_shaders_lib "${SRC_GLSL_LIB}" "GPU_LIBRARY_SHADER")

351
source/blender/compositor/shaders/compositor_parallel_reduction.glsl
View File

@@ -48,15 +48,229 @@
* expected to define the TYPE macro to be a float or a vec4, depending on the type of data being
* reduced. */
#include "infos/compositor_parallel_reduction_infos.hh"
COMPUTE_SHADER_CREATE_INFO(compositor_parallel_reduction_shared)
COMPUTE_SHADER_CREATE_INFO(compositor_parallel_reduction_output_float4)
#include "gpu_shader_compositor_texture_utilities.glsl"
#include "gpu_shader_math_base_lib.glsl"
#include "gpu_shader_math_vector_lib.glsl"
#include "gpu_shader_math_vector_reduce_lib.glsl"
#include "gpu_shader_utildefines_lib.glsl"
#define reduction_size (gl_WorkGroupSize.x * gl_WorkGroupSize.y)
shared TYPE reduction_data[reduction_size];
void main()
/* Operations */
template<typename T> struct Min {
static T identity()
{
return T(0);
}
static T initialize(T value)
{
return value;
}
static T reduce(T lhs, T rhs)
{
return min(lhs, rhs);
}
};
template struct Min<float>;
template<typename T> struct Max {
static T identity()
{
return T(0);
}
static T initialize(T value)
{
return value;
}
static T reduce(T lhs, T rhs)
{
return max(lhs, rhs);
}
};
template struct Max<float>;
template struct Max<float2>;
template struct Max<float4>;
template<typename T> struct Sum {
static T identity()
{
return T(0);
}
static T initialize(T value)
{
return value;
}
static T reduce(T lhs, T rhs)
{
return lhs + rhs;
}
};
template struct Sum<float>;
template struct Sum<float4>;
template<typename T> struct MaxVelocity {
static T identity()
{
return T(0);
}
static T initialize(T value)
{
return value;
}
static T reduce(T lhs, T rhs)
{
return float4(dot(lhs.xy, lhs.xy) > dot(rhs.xy, rhs.xy) ? lhs.xy : rhs.xy,
dot(lhs.zw, lhs.zw) > dot(rhs.zw, rhs.zw) ? lhs.zw : rhs.zw);
}
};
template struct MaxVelocity<float4>;
template<typename T> struct MaxInRange {
static T identity()
{
return T(0);
}
static T initialize(T value)
{
float max = push_constant_get(compositor_maximum_float_in_range, upper_bound);
float min = push_constant_get(compositor_maximum_float_in_range, lower_bound);
return ((value <= max) && (value >= min)) ? value : min;
}
static T reduce(T lhs, T rhs)
{
float max = push_constant_get(compositor_maximum_float_in_range, upper_bound);
return ((rhs > lhs) && (rhs <= max)) ? rhs : lhs;
}
};
template struct MaxInRange<float>;
template<typename T> struct MinInRange {
static T identity()
{
return T(0);
}
static T initialize(T value)
{
float max = push_constant_get(compositor_minimum_float_in_range, upper_bound);
float min = push_constant_get(compositor_minimum_float_in_range, lower_bound);
return ((value <= max) && (value >= min)) ? value : max;
}
static T reduce(T lhs, T rhs)
{
float min = push_constant_get(compositor_minimum_float_in_range, lower_bound);
return ((rhs < lhs) && (rhs >= min)) ? rhs : lhs;
}
};
template struct MinInRange<float>;
template<typename T> struct SumSquareDifference {
static T identity()
{
return T(0);
}
static T initialize(T value)
{
float sub = push_constant_get(compositor_sum_squared_difference_float_shared, subtrahend);
return square(value - sub);
}
static T reduce(T lhs, T rhs)
{
return lhs + rhs;
}
};
template struct SumSquareDifference<float>;
/* ChannelMix */
struct ChannelR {};
struct ChannelG {};
struct ChannelB {};
struct ChannelRG {};
struct ChannelRGBA {};
struct ChannelLuma {};
struct ChannelLogLuma {};
struct ChannelMax {};
template<typename T, typename ChannelMix> T channel_mix(float4 value)
{
return value;
}
template float4 channel_mix<float4, ChannelRGBA>(float4);
/* clang-format off */
template<> float channel_mix<float, ChannelR>(float4 value) { return value.r; }
template<> float channel_mix<float, ChannelG>(float4 value) { return value.g; }
template<> float channel_mix<float, ChannelB>(float4 value) { return value.b; }
template<> float channel_mix<float, ChannelMax>(float4 value) { return reduce_max(value.rgb); }
template<> float2 channel_mix<float2, ChannelRG>(float4 value) { return value.rg; }
/* clang-format on */
template<> float channel_mix<float, ChannelLuma>(float4 value)
{
float3 coefficients = push_constant_get(compositor_luminance_shared, luminance_coefficients);
return dot(value.rgb, coefficients);
}
template<> float channel_mix<float, ChannelLogLuma>(float4 value)
{
float3 coefficients = push_constant_get(compositor_luminance_shared, luminance_coefficients);
return log(max(dot(value.rgb, coefficients), 1e-5f));
}
/* clang-format off */
template<typename T> T load(float4 value) { return value; }
template float4 load<float4>(float4);
template<> float load<float>(float4 value) { return value.x; }
template<> float2 load<float2>(float4 value) { return value.xy; }
float4 to_float4(float value) { return float4(value); }
float4 to_float4(float2 value) { return value.xyyy; }
float4 to_float4(float4 value) { return value; }
/* clang-format on */
void load_shared_data(uint index, float &r_data)
{
r_data = shared_variable_get(compositor_parallel_reduction_float_shared, reduction_data)[index];
}
void load_shared_data(uint index, float2 &r_data)
{
r_data = shared_variable_get(compositor_parallel_reduction_float2_shared, reduction_data)[index];
}
void load_shared_data(uint index, float4 &r_data)
{
r_data = shared_variable_get(compositor_parallel_reduction_float4_shared, reduction_data)[index];
}
void store_shared_data(uint index, float data)
{
shared_variable_get(compositor_parallel_reduction_float_shared, reduction_data)[index] = data;
}
void store_shared_data(uint index, float2 data)
{
shared_variable_get(compositor_parallel_reduction_float2_shared, reduction_data)[index] = data;
}
void store_shared_data(uint index, float4 data)
{
shared_variable_get(compositor_parallel_reduction_float4_shared, reduction_data)[index] = data;
}
template<typename T, typename Operation, typename ChannelMix> void reduction()
{
int2 texel = int2(gl_GlobalInvocationID.xy);
@@ -65,7 +279,7 @@ void main()
* not affect the output of the reduction. For instance, sum reductions have an identity of 0.0,
* while max value reductions have an identity of FLT_MIN */
if (any(lessThan(texel, int2(0))) || any(greaterThanEqual(texel, texture_size(input_tx)))) {
reduction_data[gl_LocalInvocationIndex] = IDENTITY;
store_shared_data(gl_LocalInvocationIndex, Operation::identity());
}
else {
float4 value = texture_load_unbound(input_tx, texel);
@@ -82,8 +296,9 @@ void main()
* will be loaded directly and reduced without extra processing. So the developer is expected
* to define the INITIALIZE and LOAD macros to be expressions that derive the needed value from
* the loaded value for the initial reduction pass and latter ones respectively. */
reduction_data[gl_LocalInvocationIndex] = is_initial_reduction ? INITIALIZE(value) :
LOAD(value);
T data = is_initial_reduction ? Operation::initialize(channel_mix<T, ChannelMix>(value)) :
load<T>(value);
store_shared_data(gl_LocalInvocationIndex, data);
}
/* Reduce the reduction data by half on every iteration until only one element remains. See the
@@ -101,8 +316,11 @@ void main()
* lower index, as can be seen in the diagram above. The developer is expected to define the
* REDUCE macro to be a commutative and associative binary operator suitable for parallel
* reduction. */
reduction_data[gl_LocalInvocationIndex] = REDUCE(
reduction_data[gl_LocalInvocationIndex], reduction_data[gl_LocalInvocationIndex + stride]);
T lhs, rhs;
load_shared_data(gl_LocalInvocationIndex, lhs);
load_shared_data(gl_LocalInvocationIndex + stride, rhs);
T result = Operation::reduce(lhs, rhs);
store_shared_data(gl_LocalInvocationIndex, result);
}
/* Finally, the result of the reduction is available as the first element in the reduction data,
@@ -110,12 +328,117 @@ void main()
* it. */
barrier();
if (gl_LocalInvocationIndex == 0) {
/* If no WRITE macro is provided, we assume the reduction type can be passed to the float4
* constructor. If not, WRITE is expected to be defined to construct the output value. */
#if defined(WRITE)
imageStore(output_img, int2(gl_WorkGroupID.xy), WRITE(reduction_data[0]));
#else
imageStore(output_img, int2(gl_WorkGroupID.xy), float4(reduction_data[0]));
#endif
T data;
load_shared_data(0, data);
imageStore(output_img, int2(gl_WorkGroupID.xy), to_float4(data));
}
}
template void reduction<float, Min<float>, ChannelLuma>();
template void reduction<float, Min<float>, ChannelR>();
template void reduction<float, Max<float>, ChannelLuma>();
template void reduction<float, Max<float>, ChannelMax>();
template void reduction<float, Max<float>, ChannelR>();
template void reduction<float2, Max<float2>, ChannelRG>();
template void reduction<float, Sum<float>, ChannelR>();
template void reduction<float, Sum<float>, ChannelG>();
template void reduction<float, Sum<float>, ChannelB>();
template void reduction<float, Sum<float>, ChannelLuma>();
template void reduction<float, Sum<float>, ChannelLogLuma>();
template void reduction<float4, Sum<float4>, ChannelRGBA>();
template void reduction<float, SumSquareDifference<float>, ChannelR>();
template void reduction<float, SumSquareDifference<float>, ChannelG>();
template void reduction<float, SumSquareDifference<float>, ChannelB>();
template void reduction<float, SumSquareDifference<float>, ChannelLuma>();
template void reduction<float, MaxInRange<float>, ChannelR>();
template void reduction<float, MinInRange<float>, ChannelR>();
template void reduction<float4, MaxVelocity<float4>, ChannelRGBA>();
void reduce_sum_red()
{
reduction<float, Sum<float>, ChannelR>();
}
void reduce_sum_green()
{
reduction<float, Sum<float>, ChannelG>();
}
void reduce_sum_blue()
{
reduction<float, Sum<float>, ChannelB>();
}
void reduce_sum_luminance()
{
reduction<float, Sum<float>, ChannelLuma>();
}
void reduce_sum_log_luminance()
{
reduction<float, Sum<float>, ChannelLogLuma>();
}
void reduce_sum_color()
{
reduction<float4, Sum<float4>, ChannelRGBA>();
}
void reduce_sum_red_squared_difference()
{
reduction<float, SumSquareDifference<float>, ChannelR>();
}
void reduce_sum_green_squared_difference()
{
reduction<float, SumSquareDifference<float>, ChannelG>();
}
void reduce_sum_blue_squared_difference()
{
reduction<float, SumSquareDifference<float>, ChannelB>();
}
void reduce_sum_luminance_squared_difference()
{
reduction<float, SumSquareDifference<float>, ChannelLuma>();
}
void reduce_maximum_luminance()
{
reduction<float, Max<float>, ChannelLuma>();
}
void reduce_maximum_brightness()
{
reduction<float, Max<float>, ChannelMax>();
}
void reduce_maximum_float()
{
reduction<float, Max<float>, ChannelR>();
}
void reduce_maximum_float2()
{
reduction<float2, Max<float2>, ChannelRG>();
}
void reduce_maximum_float_in_range()
{
reduction<float, MaxInRange<float>, ChannelR>();
}
void reduce_minimum_luminance()
{
reduction<float, Min<float>, ChannelLuma>();
}
void reduce_minimum_float()
{
reduction<float, Min<float>, ChannelR>();
}
void reduce_minimum_float_in_range()
{
reduction<float, MinInRange<float>, ChannelR>();
}
void reduce_max_velocity()
{
reduction<float4, MaxVelocity<float4>, ChannelRGBA>();
}

184
source/blender/compositor/shaders/infos/compositor_parallel_reduction_infos.hh
View File

@@ -2,6 +2,12 @@
*
* SPDX-License-Identifier: GPL-2.0-or-later */
#pragma once
#ifdef GPU_SHADER
# include "gpu_shader_compat.hh"
#endif
#include "gpu_shader_create_info.hh"
GPU_SHADER_CREATE_INFO(compositor_parallel_reduction_shared)
@@ -11,62 +17,89 @@ SAMPLER(0, sampler2D, input_tx)
COMPUTE_SOURCE("compositor_parallel_reduction.glsl")
GPU_SHADER_CREATE_END()
GPU_SHADER_CREATE_INFO(compositor_luminance_shared)
PUSH_CONSTANT(float3, luminance_coefficients)
GPU_SHADER_CREATE_END()
GPU_SHADER_CREATE_INFO(compositor_parallel_reduction_float_shared)
GROUP_SHARED(float, reduction_data[gl_WorkGroupSize.x * gl_WorkGroupSize.y])
GPU_SHADER_CREATE_END()
GPU_SHADER_CREATE_INFO(compositor_parallel_reduction_float2_shared)
GROUP_SHARED(float2, reduction_data[gl_WorkGroupSize.x * gl_WorkGroupSize.y])
GPU_SHADER_CREATE_END()
GPU_SHADER_CREATE_INFO(compositor_parallel_reduction_float4_shared)
GROUP_SHARED(float4, reduction_data[gl_WorkGroupSize.x * gl_WorkGroupSize.y])
GPU_SHADER_CREATE_END()
GPU_SHADER_CREATE_INFO(compositor_parallel_reduction_half4_shared)
GROUP_SHARED(float4, reduction_data[gl_WorkGroupSize.x * gl_WorkGroupSize.y])
GPU_SHADER_CREATE_END()
GPU_SHADER_CREATE_INFO(compositor_parallel_reduction_output_float)
IMAGE(0, SFLOAT_32, write, image2D, output_img)
GPU_SHADER_CREATE_END()
GPU_SHADER_CREATE_INFO(compositor_parallel_reduction_output_float2)
IMAGE(0, SFLOAT_32_32, write, image2D, output_img)
GPU_SHADER_CREATE_END()
GPU_SHADER_CREATE_INFO(compositor_parallel_reduction_output_float4)
IMAGE(0, SFLOAT_32_32_32_32, write, image2D, output_img)
GPU_SHADER_CREATE_END()
GPU_SHADER_CREATE_INFO(compositor_parallel_reduction_output_half4)
IMAGE(0, SFLOAT_16_16_16_16, write, image2D, output_img)
GPU_SHADER_CREATE_END()
/* --------------------------------------------------------------------
* Sum Reductions.
*/
GPU_SHADER_CREATE_INFO(compositor_sum_shared)
ADDITIONAL_INFO(compositor_parallel_reduction_shared)
DEFINE_VALUE("REDUCE(lhs, rhs)", "lhs + rhs")
GPU_SHADER_CREATE_END()
GPU_SHADER_CREATE_INFO(compositor_sum_float_shared)
ADDITIONAL_INFO(compositor_sum_shared)
IMAGE(0, SFLOAT_32, write, image2D, output_img)
DEFINE_VALUE("TYPE", "float")
DEFINE_VALUE("IDENTITY", "0.0f")
DEFINE_VALUE("LOAD(value)", "value.x")
ADDITIONAL_INFO(compositor_parallel_reduction_shared)
ADDITIONAL_INFO(compositor_parallel_reduction_float_shared)
ADDITIONAL_INFO(compositor_parallel_reduction_output_float)
GPU_SHADER_CREATE_END()
GPU_SHADER_CREATE_INFO(compositor_sum_red)
COMPUTE_FUNCTION("reduce_sum_red")
ADDITIONAL_INFO(compositor_sum_float_shared)
DEFINE_VALUE("INITIALIZE(value)", "value.r")
DO_STATIC_COMPILATION()
GPU_SHADER_CREATE_END()
GPU_SHADER_CREATE_INFO(compositor_sum_green)
COMPUTE_FUNCTION("reduce_sum_green")
ADDITIONAL_INFO(compositor_sum_float_shared)
DEFINE_VALUE("INITIALIZE(value)", "value.g")
DO_STATIC_COMPILATION()
GPU_SHADER_CREATE_END()
GPU_SHADER_CREATE_INFO(compositor_sum_blue)
COMPUTE_FUNCTION("reduce_sum_blue")
ADDITIONAL_INFO(compositor_sum_float_shared)
DEFINE_VALUE("INITIALIZE(value)", "value.b")
DO_STATIC_COMPILATION()
GPU_SHADER_CREATE_END()
GPU_SHADER_CREATE_INFO(compositor_sum_luminance)
COMPUTE_FUNCTION("reduce_sum_luminance")
ADDITIONAL_INFO(compositor_sum_float_shared)
PUSH_CONSTANT(float3, luminance_coefficients)
DEFINE_VALUE("INITIALIZE(value)", "dot(value.rgb, luminance_coefficients)")
ADDITIONAL_INFO(compositor_luminance_shared)
DO_STATIC_COMPILATION()
GPU_SHADER_CREATE_END()
GPU_SHADER_CREATE_INFO(compositor_sum_log_luminance)
COMPUTE_FUNCTION("reduce_sum_log_luminance")
ADDITIONAL_INFO(compositor_sum_float_shared)
PUSH_CONSTANT(float3, luminance_coefficients)
DEFINE_VALUE("INITIALIZE(value)", "log(max(dot(value.rgb, luminance_coefficients), 1e-5f))")
ADDITIONAL_INFO(compositor_luminance_shared)
DO_STATIC_COMPILATION()
GPU_SHADER_CREATE_END()
GPU_SHADER_CREATE_INFO(compositor_sum_color)
ADDITIONAL_INFO(compositor_sum_shared)
IMAGE(0, SFLOAT_32_32_32_32, write, image2D, output_img)
DEFINE_VALUE("TYPE", "vec4")
DEFINE_VALUE("IDENTITY", "vec4(0.0f)")
DEFINE_VALUE("INITIALIZE(value)", "value")
DEFINE_VALUE("LOAD(value)", "value")
COMPUTE_FUNCTION("reduce_sum_color")
ADDITIONAL_INFO(compositor_parallel_reduction_shared)
ADDITIONAL_INFO(compositor_parallel_reduction_output_float4)
GROUP_SHARED(float4, reduction_data[gl_WorkGroupSize.x * gl_WorkGroupSize.y])
DO_STATIC_COMPILATION()
GPU_SHADER_CREATE_END()
@@ -76,36 +109,33 @@ GPU_SHADER_CREATE_END()
GPU_SHADER_CREATE_INFO(compositor_sum_squared_difference_float_shared)
ADDITIONAL_INFO(compositor_parallel_reduction_shared)
IMAGE(0, SFLOAT_32, write, image2D, output_img)
ADDITIONAL_INFO(compositor_parallel_reduction_float_shared)
ADDITIONAL_INFO(compositor_parallel_reduction_output_float)
PUSH_CONSTANT(float, subtrahend)
DEFINE_VALUE("TYPE", "float")
DEFINE_VALUE("IDENTITY", "0.0f")
DEFINE_VALUE("LOAD(value)", "value.x")
DEFINE_VALUE("REDUCE(lhs, rhs)", "lhs + rhs")
GPU_SHADER_CREATE_END()
GPU_SHADER_CREATE_INFO(compositor_sum_red_squared_difference)
COMPUTE_FUNCTION("reduce_sum_red_squared_difference")
ADDITIONAL_INFO(compositor_sum_squared_difference_float_shared)
DEFINE_VALUE("INITIALIZE(value)", "pow(value.r - subtrahend, 2.0f)")
DO_STATIC_COMPILATION()
GPU_SHADER_CREATE_END()
GPU_SHADER_CREATE_INFO(compositor_sum_green_squared_difference)
COMPUTE_FUNCTION("reduce_sum_green_squared_difference")
ADDITIONAL_INFO(compositor_sum_squared_difference_float_shared)
DEFINE_VALUE("INITIALIZE(value)", "pow(value.g - subtrahend, 2.0f)")
DO_STATIC_COMPILATION()
GPU_SHADER_CREATE_END()
GPU_SHADER_CREATE_INFO(compositor_sum_blue_squared_difference)
COMPUTE_FUNCTION("reduce_sum_blue_squared_difference")
ADDITIONAL_INFO(compositor_sum_squared_difference_float_shared)
DEFINE_VALUE("INITIALIZE(value)", "pow(value.b - subtrahend, 2.0f)")
DO_STATIC_COMPILATION()
GPU_SHADER_CREATE_END()
GPU_SHADER_CREATE_INFO(compositor_sum_luminance_squared_difference)
COMPUTE_FUNCTION("reduce_sum_luminance_squared_difference")
ADDITIONAL_INFO(compositor_sum_squared_difference_float_shared)
PUSH_CONSTANT(float3, luminance_coefficients)
DEFINE_VALUE("INITIALIZE(value)", "pow(dot(value.rgb, luminance_coefficients) - subtrahend, 2.0f)")
ADDITIONAL_INFO(compositor_luminance_shared)
DO_STATIC_COMPILATION()
GPU_SHADER_CREATE_END()
@@ -114,61 +144,45 @@ GPU_SHADER_CREATE_END()
*/
GPU_SHADER_CREATE_INFO(compositor_maximum_luminance)
COMPUTE_FUNCTION("reduce_maximum_luminance")
ADDITIONAL_INFO(compositor_parallel_reduction_shared)
IMAGE(0, SFLOAT_32, write, image2D, output_img)
PUSH_CONSTANT(float3, luminance_coefficients)
DEFINE_VALUE("TYPE", "float")
DEFINE_VALUE("IDENTITY", "FLT_MIN")
DEFINE_VALUE("INITIALIZE(value)", "dot(value.rgb, luminance_coefficients)")
DEFINE_VALUE("LOAD(value)", "value.x")
DEFINE_VALUE("REDUCE(lhs, rhs)", "max(lhs, rhs)")
ADDITIONAL_INFO(compositor_parallel_reduction_float_shared)
ADDITIONAL_INFO(compositor_parallel_reduction_output_float)
ADDITIONAL_INFO(compositor_luminance_shared)
DO_STATIC_COMPILATION()
GPU_SHADER_CREATE_END()
GPU_SHADER_CREATE_INFO(compositor_maximum_brightness)
COMPUTE_FUNCTION("reduce_maximum_brightness")
ADDITIONAL_INFO(compositor_parallel_reduction_shared)
IMAGE(0, SFLOAT_32, write, image2D, output_img)
DEFINE_VALUE("TYPE", "float")
DEFINE_VALUE("IDENTITY", "FLT_MIN")
DEFINE_VALUE("INITIALIZE(value)", "reduce_max(value.rgb)")
DEFINE_VALUE("LOAD(value)", "value.x")
DEFINE_VALUE("REDUCE(lhs, rhs)", "max(lhs, rhs)")
ADDITIONAL_INFO(compositor_parallel_reduction_float_shared)
ADDITIONAL_INFO(compositor_parallel_reduction_output_float)
DO_STATIC_COMPILATION()
GPU_SHADER_CREATE_END()
GPU_SHADER_CREATE_INFO(compositor_maximum_float)
COMPUTE_FUNCTION("reduce_maximum_float")
ADDITIONAL_INFO(compositor_parallel_reduction_shared)
IMAGE(0, SFLOAT_32, write, image2D, output_img)
DEFINE_VALUE("TYPE", "float")
DEFINE_VALUE("IDENTITY", "FLT_MIN")
DEFINE_VALUE("INITIALIZE(value)", "value.x")
DEFINE_VALUE("LOAD(value)", "value.x")
DEFINE_VALUE("REDUCE(lhs, rhs)", "max(rhs, lhs)")
ADDITIONAL_INFO(compositor_parallel_reduction_float_shared)
ADDITIONAL_INFO(compositor_parallel_reduction_output_float)
DO_STATIC_COMPILATION()
GPU_SHADER_CREATE_END()
GPU_SHADER_CREATE_INFO(compositor_maximum_float2)
COMPUTE_FUNCTION("reduce_maximum_float2")
ADDITIONAL_INFO(compositor_parallel_reduction_shared)
IMAGE(0, SFLOAT_32_32, write, image2D, output_img)
DEFINE_VALUE("TYPE", "vec2")
DEFINE_VALUE("IDENTITY", "vec2(FLT_MIN)")
DEFINE_VALUE("INITIALIZE(value)", "value.xy")
DEFINE_VALUE("LOAD(value)", "value.xy")
DEFINE_VALUE("REDUCE(lhs, rhs)", "max(rhs, lhs)")
DEFINE_VALUE("WRITE(value)", "vec4(value, vec2(0.0f))")
ADDITIONAL_INFO(compositor_parallel_reduction_float2_shared)
ADDITIONAL_INFO(compositor_parallel_reduction_output_float2)
DO_STATIC_COMPILATION()
GPU_SHADER_CREATE_END()
GPU_SHADER_CREATE_INFO(compositor_maximum_float_in_range)
COMPUTE_FUNCTION("reduce_maximum_float_in_range")
ADDITIONAL_INFO(compositor_parallel_reduction_shared)
IMAGE(0, SFLOAT_32, write, image2D, output_img)
ADDITIONAL_INFO(compositor_parallel_reduction_float_shared)
ADDITIONAL_INFO(compositor_parallel_reduction_output_float)
PUSH_CONSTANT(float, lower_bound)
PUSH_CONSTANT(float, upper_bound)
DEFINE_VALUE("TYPE", "float")
DEFINE_VALUE("IDENTITY", "lower_bound")
DEFINE_VALUE("INITIALIZE(v)", "((v.x <= upper_bound) && (v.x >= lower_bound)) ? v.x : lower_bound")
DEFINE_VALUE("LOAD(value)", "value.x")
DEFINE_VALUE("REDUCE(lhs, rhs)", "((rhs > lhs) && (rhs <= upper_bound)) ? rhs : lhs")
DO_STATIC_COMPILATION()
GPU_SHADER_CREATE_END()
@@ -177,38 +191,29 @@ GPU_SHADER_CREATE_END()
*/
GPU_SHADER_CREATE_INFO(compositor_minimum_luminance)
COMPUTE_FUNCTION("reduce_minimum_luminance")
ADDITIONAL_INFO(compositor_parallel_reduction_shared)
IMAGE(0, SFLOAT_32, write, image2D, output_img)
PUSH_CONSTANT(float3, luminance_coefficients)
DEFINE_VALUE("TYPE", "float")
DEFINE_VALUE("IDENTITY", "FLT_MAX")
DEFINE_VALUE("INITIALIZE(value)", "dot(value.rgb, luminance_coefficients)")
DEFINE_VALUE("LOAD(value)", "value.x")
DEFINE_VALUE("REDUCE(lhs, rhs)", "min(lhs, rhs)")
ADDITIONAL_INFO(compositor_parallel_reduction_float_shared)
ADDITIONAL_INFO(compositor_parallel_reduction_output_float)
ADDITIONAL_INFO(compositor_luminance_shared)
DO_STATIC_COMPILATION()
GPU_SHADER_CREATE_END()
GPU_SHADER_CREATE_INFO(compositor_minimum_float)
COMPUTE_FUNCTION("reduce_minimum_float")
ADDITIONAL_INFO(compositor_parallel_reduction_shared)
IMAGE(0, SFLOAT_32, write, image2D, output_img)
DEFINE_VALUE("TYPE", "float")
DEFINE_VALUE("IDENTITY", "FLT_MAX")
DEFINE_VALUE("INITIALIZE(value)", "value.x")
DEFINE_VALUE("LOAD(value)", "value.x")
DEFINE_VALUE("REDUCE(lhs, rhs)", "min(rhs, lhs)")
ADDITIONAL_INFO(compositor_parallel_reduction_float_shared)
ADDITIONAL_INFO(compositor_parallel_reduction_output_float)
DO_STATIC_COMPILATION()
GPU_SHADER_CREATE_END()
GPU_SHADER_CREATE_INFO(compositor_minimum_float_in_range)
COMPUTE_FUNCTION("reduce_minimum_float_in_range")
ADDITIONAL_INFO(compositor_parallel_reduction_shared)
IMAGE(0, SFLOAT_32, write, image2D, output_img)
ADDITIONAL_INFO(compositor_parallel_reduction_float_shared)
ADDITIONAL_INFO(compositor_parallel_reduction_output_float)
PUSH_CONSTANT(float, lower_bound)
PUSH_CONSTANT(float, upper_bound)
DEFINE_VALUE("TYPE", "float")
DEFINE_VALUE("IDENTITY", "upper_bound")
DEFINE_VALUE("INITIALIZE(v)", "((v.x <= upper_bound) && (v.x >= lower_bound)) ? v.x : upper_bound")
DEFINE_VALUE("LOAD(value)", "value.x")
DEFINE_VALUE("REDUCE(lhs, rhs)", "((rhs < lhs) && (rhs >= lower_bound)) ? rhs : lhs")
DO_STATIC_COMPILATION()
GPU_SHADER_CREATE_END()
@@ -217,17 +222,12 @@ GPU_SHADER_CREATE_END()
*/
GPU_SHADER_CREATE_INFO(compositor_max_velocity)
ADDITIONAL_INFO(compositor_parallel_reduction_float4_shared)
ADDITIONAL_INFO(compositor_parallel_reduction_output_half4)
COMPUTE_FUNCTION("reduce_max_velocity")
LOCAL_GROUP_SIZE(32, 32)
PUSH_CONSTANT(bool, is_initial_reduction)
SAMPLER(0, sampler2D, input_tx)
IMAGE(0, SFLOAT_16_16_16_16, write, image2D, output_img)
DEFINE_VALUE("TYPE", "vec4")
DEFINE_VALUE("IDENTITY", "vec4(0.0f)")
DEFINE_VALUE("INITIALIZE(value)", "value")
DEFINE_VALUE("LOAD(value)", "value")
DEFINE_VALUE("REDUCE(lhs, rhs)",
"vec4(dot(lhs.xy, lhs.xy) > dot(rhs.xy, rhs.xy) ? lhs.xy : rhs.xy,"
" dot(lhs.zw, lhs.zw) > dot(rhs.zw, rhs.zw) ? lhs.zw : rhs.zw)")
COMPUTE_SOURCE("compositor_parallel_reduction.glsl")
DO_STATIC_COMPILATION()
GPU_SHADER_CREATE_END()