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authorRodrigo Locatti <reinuseslisp@airmail.cc>2020-06-24 06:51:15 +0200
committerGitHub <noreply@github.com>2020-06-24 06:51:15 +0200
commitb66ccaa37615352a5a8b97e20ce6e6751d136b18 (patch)
tree783967c26d0c5a4e2859a99bc8ca14ff160d2ec5 /src/video_core/renderer_opengl
parentMerge pull request #4138 from Morph1984/GyroscopeZeroDriftMode (diff)
parentgl_shader_decompiler: Enable GL_EXT_texture_shadow_lod if available (diff)
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Diffstat (limited to 'src/video_core/renderer_opengl')
-rw-r--r--src/video_core/renderer_opengl/gl_device.cpp2
-rw-r--r--src/video_core/renderer_opengl/gl_device.h5
-rw-r--r--src/video_core/renderer_opengl/gl_shader_decompiler.cpp50
3 files changed, 50 insertions, 7 deletions
diff --git a/src/video_core/renderer_opengl/gl_device.cpp b/src/video_core/renderer_opengl/gl_device.cpp
index b31d604e4..1011c7738 100644
--- a/src/video_core/renderer_opengl/gl_device.cpp
+++ b/src/video_core/renderer_opengl/gl_device.cpp
@@ -216,6 +216,7 @@ Device::Device()
has_shader_ballot = GLAD_GL_ARB_shader_ballot;
has_vertex_viewport_layer = GLAD_GL_ARB_shader_viewport_layer_array;
has_image_load_formatted = HasExtension(extensions, "GL_EXT_shader_image_load_formatted");
+ has_texture_shadow_lod = HasExtension(extensions, "GL_EXT_texture_shadow_lod");
has_astc = IsASTCSupported();
has_variable_aoffi = TestVariableAoffi();
has_component_indexing_bug = is_amd;
@@ -245,6 +246,7 @@ Device::Device(std::nullptr_t) {
has_shader_ballot = true;
has_vertex_viewport_layer = true;
has_image_load_formatted = true;
+ has_texture_shadow_lod = true;
has_variable_aoffi = true;
}
diff --git a/src/video_core/renderer_opengl/gl_device.h b/src/video_core/renderer_opengl/gl_device.h
index 145347943..c86e709b1 100644
--- a/src/video_core/renderer_opengl/gl_device.h
+++ b/src/video_core/renderer_opengl/gl_device.h
@@ -68,6 +68,10 @@ public:
return has_image_load_formatted;
}
+ bool HasTextureShadowLod() const {
+ return has_texture_shadow_lod;
+ }
+
bool HasASTC() const {
return has_astc;
}
@@ -110,6 +114,7 @@ private:
bool has_shader_ballot{};
bool has_vertex_viewport_layer{};
bool has_image_load_formatted{};
+ bool has_texture_shadow_lod{};
bool has_astc{};
bool has_variable_aoffi{};
bool has_component_indexing_bug{};
diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
index d6e30b321..2c49aeaac 100644
--- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
+++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
@@ -37,6 +37,7 @@ using Tegra::Shader::IpaMode;
using Tegra::Shader::IpaSampleMode;
using Tegra::Shader::PixelImap;
using Tegra::Shader::Register;
+using Tegra::Shader::TextureType;
using VideoCommon::Shader::BuildTransformFeedback;
using VideoCommon::Shader::Registry;
@@ -526,6 +527,9 @@ private:
if (device.HasImageLoadFormatted()) {
code.AddLine("#extension GL_EXT_shader_image_load_formatted : require");
}
+ if (device.HasTextureShadowLod()) {
+ code.AddLine("#extension GL_EXT_texture_shadow_lod : require");
+ }
if (device.HasWarpIntrinsics()) {
code.AddLine("#extension GL_NV_gpu_shader5 : require");
code.AddLine("#extension GL_NV_shader_thread_group : require");
@@ -909,13 +913,13 @@ private:
return "samplerBuffer";
}
switch (sampler.type) {
- case Tegra::Shader::TextureType::Texture1D:
+ case TextureType::Texture1D:
return "sampler1D";
- case Tegra::Shader::TextureType::Texture2D:
+ case TextureType::Texture2D:
return "sampler2D";
- case Tegra::Shader::TextureType::Texture3D:
+ case TextureType::Texture3D:
return "sampler3D";
- case Tegra::Shader::TextureType::TextureCube:
+ case TextureType::TextureCube:
return "samplerCube";
default:
UNREACHABLE();
@@ -1380,8 +1384,19 @@ private:
const std::size_t count = operation.GetOperandsCount();
const bool has_array = meta->sampler.is_array;
const bool has_shadow = meta->sampler.is_shadow;
+ const bool workaround_lod_array_shadow_as_grad =
+ !device.HasTextureShadowLod() && function_suffix == "Lod" && meta->sampler.is_shadow &&
+ ((meta->sampler.type == TextureType::Texture2D && meta->sampler.is_array) ||
+ meta->sampler.type == TextureType::TextureCube);
+
+ std::string expr = "texture";
+
+ if (workaround_lod_array_shadow_as_grad) {
+ expr += "Grad";
+ } else {
+ expr += function_suffix;
+ }
- std::string expr = "texture" + function_suffix;
if (!meta->aoffi.empty()) {
expr += "Offset";
} else if (!meta->ptp.empty()) {
@@ -1415,6 +1430,16 @@ private:
expr += ')';
}
+ if (workaround_lod_array_shadow_as_grad) {
+ switch (meta->sampler.type) {
+ case TextureType::Texture2D:
+ return expr + ", vec2(0.0), vec2(0.0))";
+ case TextureType::TextureCube:
+ return expr + ", vec3(0.0), vec3(0.0))";
+ }
+ UNREACHABLE();
+ }
+
for (const auto& variant : extras) {
if (const auto argument = std::get_if<TextureArgument>(&variant)) {
expr += GenerateTextureArgument(*argument);
@@ -2041,8 +2066,19 @@ private:
const auto meta = std::get_if<MetaTexture>(&operation.GetMeta());
ASSERT(meta);
- std::string expr = GenerateTexture(
- operation, "Lod", {TextureArgument{Type::Float, meta->lod}, TextureOffset{}});
+ std::string expr{};
+
+ if (!device.HasTextureShadowLod() && meta->sampler.is_shadow &&
+ ((meta->sampler.type == TextureType::Texture2D && meta->sampler.is_array) ||
+ meta->sampler.type == TextureType::TextureCube)) {
+ LOG_ERROR(Render_OpenGL,
+ "Device lacks GL_EXT_texture_shadow_lod, using textureGrad as a workaround");
+ expr = GenerateTexture(operation, "Lod", {});
+ } else {
+ expr = GenerateTexture(operation, "Lod",
+ {TextureArgument{Type::Float, meta->lod}, TextureOffset{}});
+ }
+
if (meta->sampler.is_shadow) {
expr = "vec4(" + expr + ')';
}