mirror of https://github.com/AxioDL/metaforce.git
448 lines
16 KiB
C++
448 lines
16 KiB
C++
#include "Specter/TextView.hpp"
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#include "Specter/ViewResources.hpp"
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#include "utf8proc.h"
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#include <freetype/internal/internal.h>
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#include <freetype/internal/ftobjs.h>
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namespace Specter
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{
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static LogVisor::LogModule Log("Specter::TextView");
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void TextView::Resources::init(boo::GLDataFactory* factory, FontCache* fcache)
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{
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m_fcache = fcache;
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static const char* VS =
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"#version 330\n"
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"layout(location=0) in vec3 posIn[4];\n"
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"layout(location=4) in mat4 mvMtx;\n"
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"layout(location=8) in vec3 uvIn[4];\n"
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"layout(location=12) in vec4 colorIn;\n"
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SPECTER_VIEW_VERT_BLOCK_GLSL
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"struct VertToFrag\n"
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"{\n"
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" vec3 uv;\n"
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" vec4 color;\n"
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"};\n"
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"out VertToFrag vtf;\n"
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"void main()\n"
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"{\n"
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" vtf.uv = uvIn[gl_VertexID];\n"
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" vtf.color = colorIn;\n"
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" gl_Position = mv * mvMtx * vec4(posIn[gl_VertexID], 1.0);\n"
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"}\n";
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static const char* FSReg =
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"#version 330\n"
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"uniform sampler2DArray fontTex;\n"
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"struct VertToFrag\n"
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"{\n"
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" vec3 uv;\n"
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" vec4 color;\n"
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"};\n"
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"in VertToFrag vtf;\n"
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"layout(location=0) out vec4 colorOut;\n"
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"void main()\n"
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"{\n"
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" colorOut = vtf.color;\n"
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" colorOut.a = texture(fontTex, vtf.uv).r;\n"
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"}\n";
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static const char* FSSubpixel =
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"#version 330\n"
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"uniform sampler2DArray fontTex;\n"
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"struct VertToFrag\n"
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"{\n"
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" vec3 uv;\n"
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" vec4 color;\n"
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"};\n"
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"in VertToFrag vtf;\n"
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"layout(location=0, index=0) out vec4 colorOut;\n"
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"layout(location=0, index=1) out vec4 blendOut;\n"
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"void main()\n"
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"{\n"
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" colorOut = vtf.color;\n"
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" blendOut = texture(fontTex, vtf.uv);\n"
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"}\n";
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static const char* BlockNames[] = {"SpecterViewBlock"};
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m_regular =
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factory->newShaderPipeline(VS, FSReg, 1, "fontTex", 1, BlockNames,
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boo::BlendFactor::SrcAlpha, boo::BlendFactor::InvSrcAlpha,
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false, false, false);
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m_subpixel =
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factory->newShaderPipeline(VS, FSSubpixel, 1, "fontTex", 1, BlockNames,
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boo::BlendFactor::SrcColor1, boo::BlendFactor::InvSrcColor1,
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false, false, false);
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}
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#if _WIN32
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void TextView::Resources::init(boo::ID3DDataFactory* factory, FontCache* fcache)
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{
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m_fcache = fcache;
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static const char* VS =
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"struct VertData\n"
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"{\n"
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" float3 posIn[4] : POSITION;\n"
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" float4x4 mvMtx : MODELVIEW;\n"
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" float3 uvIn[4] : UV;\n"
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" float4 colorIn : COLOR;\n"
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"};\n"
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SPECTER_VIEW_VERT_BLOCK_HLSL
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"struct VertToFrag\n"
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"{\n"
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" float4 position : SV_Position;\n"
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" float3 uv : UV;\n"
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" float4 color : COLOR;\n"
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"};\n"
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"VertToFrag main(in VertData v, in uint vertId : SV_VertexID)\n"
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"{\n"
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" VertToFrag vtf;\n"
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" vtf.uv = v.uvIn[vertId];\n"
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" vtf.color = v.colorIn;\n"
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" vtf.position = mul(mv, mul(v.mvMtx, float4(v.posIn[vertId], 1.0)));\n"
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" return vtf;\n"
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"}\n";
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static const char* FSReg =
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"Texture2DArray fontTex : register(t0);\n"
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"SamplerState samp : register(s0);\n"
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"struct VertToFrag\n"
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"{\n"
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" float4 position : SV_Position;\n"
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" float3 uv : UV;\n"
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" float4 color : COLOR;\n"
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"};\n"
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"float4 main(in VertToFrag vtf) : SV_Target0\n"
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"{\n"
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" float4 colorOut = vtf.color;\n"
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" colorOut.a = fontTex.Sample(samp, vtf.uv).r;\n"
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" return colorOut;\n"
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"}\n";
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static const char* FSSubpixel =
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"Texture2DArray fontTex : register(t0);\n"
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"SamplerState samp : register(s0);\n"
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"struct VertToFrag\n"
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"{\n"
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" float4 position : SV_Position;\n"
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" float3 uv : UV;\n"
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" float4 color : COLOR;\n"
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"};\n"
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"struct BlendOut\n"
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"{\n"
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" float4 colorOut : SV_Target0;\n"
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" float4 blendOut : SV_Target1;\n"
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"};\n"
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"BlendOut main(in VertToFrag vtf)\n"
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"{\n"
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" BlendOut ret;\n"
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" ret.colorOut = vtf.color;\n"
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" ret.blendOut = fontTex.Sample(samp, vtf.uv);\n"
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" return ret;\n"
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"}\n";
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boo::VertexElementDescriptor vdescs[] =
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{
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{nullptr, nullptr, boo::VertexSemantic::Position4 | boo::VertexSemantic::Instanced, 0},
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{nullptr, nullptr, boo::VertexSemantic::Position4 | boo::VertexSemantic::Instanced, 1},
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{nullptr, nullptr, boo::VertexSemantic::Position4 | boo::VertexSemantic::Instanced, 2},
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{nullptr, nullptr, boo::VertexSemantic::Position4 | boo::VertexSemantic::Instanced, 3},
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{nullptr, nullptr, boo::VertexSemantic::ModelView | boo::VertexSemantic::Instanced, 0},
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{nullptr, nullptr, boo::VertexSemantic::ModelView | boo::VertexSemantic::Instanced, 1},
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{nullptr, nullptr, boo::VertexSemantic::ModelView | boo::VertexSemantic::Instanced, 2},
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{nullptr, nullptr, boo::VertexSemantic::ModelView | boo::VertexSemantic::Instanced, 3},
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{nullptr, nullptr, boo::VertexSemantic::UV4 | boo::VertexSemantic::Instanced, 0},
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{nullptr, nullptr, boo::VertexSemantic::UV4 | boo::VertexSemantic::Instanced, 1},
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{nullptr, nullptr, boo::VertexSemantic::UV4 | boo::VertexSemantic::Instanced, 2},
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{nullptr, nullptr, boo::VertexSemantic::UV4 | boo::VertexSemantic::Instanced, 3},
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{nullptr, nullptr, boo::VertexSemantic::Color | boo::VertexSemantic::Instanced}
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};
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m_vtxFmt = factory->newVertexFormat(13, vdescs);
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ComPtr<ID3DBlob> blobVert;
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ComPtr<ID3DBlob> blobFrag;
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ComPtr<ID3DBlob> blobPipe;
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m_regular =
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factory->newShaderPipeline(VS, FSReg, blobVert, blobFrag, blobPipe, m_vtxFmt,
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boo::BlendFactor::SrcAlpha, boo::BlendFactor::InvSrcAlpha,
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false, false, false);
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blobFrag.Reset();
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blobPipe.Reset();
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m_subpixel =
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factory->newShaderPipeline(nullptr, FSSubpixel, blobVert, blobFrag, blobPipe, m_vtxFmt,
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boo::BlendFactor::SrcColor1, boo::BlendFactor::InvSrcColor1,
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false, false, false);
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}
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#elif BOO_HAS_METAL
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void TextView::Resources::init(boo::MetalDataFactory* factory, FontCache* fcache)
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{
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m_fcache = fcache;
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static const char* VS =
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"#include <metal_stdlib>\n"
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"using namespace metal;\n"
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"struct VertData\n"
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"{\n"
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" float3 posIn[4];\n"
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" float4x4 mvMtx;\n"
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" float3 uvIn[4];\n"
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" float4 colorIn;\n"
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"};\n"
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SPECTER_VIEW_VERT_BLOCK_METAL
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"struct VertToFrag\n"
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"{\n"
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" float4 position [[ position ]];\n"
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" float3 uv;\n"
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" float4 color;\n"
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"};\n"
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"vertex VertToFrag vmain(constant VertData* va [[ buffer(1) ]],\n"
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" uint vertId [[ vertex_id ]], uint instId [[ instance_id ]],\n"
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" constant SpecterViewBlock& view [[ buffer(2) ]])\n"
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"{\n"
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" VertToFrag vtf;\n"
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" constant VertData& v = va[instId];\n"
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" vtf.uv = v.uvIn[vertId];\n"
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" vtf.color = v.colorIn;\n"
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" vtf.position = view.mv * v.mvMtx * float4(v.posIn[vertId], 1.0);\n"
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" return vtf;\n"
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"}\n";
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static const char* FSReg =
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"#include <metal_stdlib>\n"
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"using namespace metal;\n"
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"constexpr sampler samp(address::repeat);\n"
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"struct VertToFrag\n"
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"{\n"
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" float4 position [[ position ]];\n"
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" float3 uv;\n"
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" float4 color;\n"
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"};\n"
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"fragment float4 fmain(VertToFrag vtf [[ stage_in ]], texture2d_array<float> fontTex [[ texture(0) ]])\n"
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"{\n"
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" float4 colorOut = vtf.color;\n"
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" colorOut.a = fontTex.sample(samp, vtf.uv.xy, vtf.uv.z).r;\n"
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" return colorOut;\n"
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"}\n";
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boo::VertexElementDescriptor vdescs[] =
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{
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{nullptr, nullptr, boo::VertexSemantic::Position4 | boo::VertexSemantic::Instanced, 0},
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{nullptr, nullptr, boo::VertexSemantic::Position4 | boo::VertexSemantic::Instanced, 1},
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{nullptr, nullptr, boo::VertexSemantic::Position4 | boo::VertexSemantic::Instanced, 2},
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{nullptr, nullptr, boo::VertexSemantic::Position4 | boo::VertexSemantic::Instanced, 3},
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{nullptr, nullptr, boo::VertexSemantic::ModelView | boo::VertexSemantic::Instanced, 0},
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{nullptr, nullptr, boo::VertexSemantic::ModelView | boo::VertexSemantic::Instanced, 1},
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{nullptr, nullptr, boo::VertexSemantic::ModelView | boo::VertexSemantic::Instanced, 2},
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{nullptr, nullptr, boo::VertexSemantic::ModelView | boo::VertexSemantic::Instanced, 3},
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{nullptr, nullptr, boo::VertexSemantic::UV4 | boo::VertexSemantic::Instanced, 0},
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{nullptr, nullptr, boo::VertexSemantic::UV4 | boo::VertexSemantic::Instanced, 1},
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{nullptr, nullptr, boo::VertexSemantic::UV4 | boo::VertexSemantic::Instanced, 2},
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{nullptr, nullptr, boo::VertexSemantic::UV4 | boo::VertexSemantic::Instanced, 3},
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{nullptr, nullptr, boo::VertexSemantic::Color | boo::VertexSemantic::Instanced}
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};
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m_vtxFmt = factory->newVertexFormat(13, vdescs);
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m_regular =
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factory->newShaderPipeline(VS, FSReg, m_vtxFmt, 1,
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boo::BlendFactor::SrcAlpha, boo::BlendFactor::InvSrcAlpha,
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false, false, false);
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}
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#endif
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TextView::TextView(ViewResources& system, View& parentView, const FontAtlas& font, size_t capacity)
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: View(system, parentView),
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m_capacity(capacity),
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m_fontAtlas(font)
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{
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m_glyphBuf =
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system.m_factory->newDynamicBuffer(boo::BufferUse::Vertex,
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sizeof(RenderGlyph), capacity);
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boo::IShaderPipeline* shader;
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if (font.subpixel())
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shader = system.m_textRes.m_subpixel;
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else
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shader = system.m_textRes.m_regular;
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if (!system.m_textRes.m_vtxFmt)
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{
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boo::VertexElementDescriptor vdescs[] =
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{
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{m_glyphBuf, nullptr, boo::VertexSemantic::Position4 | boo::VertexSemantic::Instanced, 0},
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{m_glyphBuf, nullptr, boo::VertexSemantic::Position4 | boo::VertexSemantic::Instanced, 1},
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{m_glyphBuf, nullptr, boo::VertexSemantic::Position4 | boo::VertexSemantic::Instanced, 2},
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{m_glyphBuf, nullptr, boo::VertexSemantic::Position4 | boo::VertexSemantic::Instanced, 3},
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{m_glyphBuf, nullptr, boo::VertexSemantic::ModelView | boo::VertexSemantic::Instanced, 0},
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{m_glyphBuf, nullptr, boo::VertexSemantic::ModelView | boo::VertexSemantic::Instanced, 1},
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{m_glyphBuf, nullptr, boo::VertexSemantic::ModelView | boo::VertexSemantic::Instanced, 2},
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{m_glyphBuf, nullptr, boo::VertexSemantic::ModelView | boo::VertexSemantic::Instanced, 3},
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{m_glyphBuf, nullptr, boo::VertexSemantic::UV4 | boo::VertexSemantic::Instanced, 0},
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{m_glyphBuf, nullptr, boo::VertexSemantic::UV4 | boo::VertexSemantic::Instanced, 1},
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{m_glyphBuf, nullptr, boo::VertexSemantic::UV4 | boo::VertexSemantic::Instanced, 2},
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{m_glyphBuf, nullptr, boo::VertexSemantic::UV4 | boo::VertexSemantic::Instanced, 3},
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{m_glyphBuf, nullptr, boo::VertexSemantic::Color | boo::VertexSemantic::Instanced}
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};
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m_vtxFmt = system.m_factory->newVertexFormat(13, vdescs);
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boo::ITexture* texs[] = {m_fontAtlas.texture()};
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m_shaderBinding = system.m_factory->newShaderDataBinding(shader, m_vtxFmt,
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nullptr, m_glyphBuf, nullptr, 1,
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(boo::IGraphicsBuffer**)&m_viewVertBlockBuf,
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1, texs);
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}
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else
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{
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boo::ITexture* texs[] = {m_fontAtlas.texture()};
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m_shaderBinding = system.m_factory->newShaderDataBinding(shader, system.m_textRes.m_vtxFmt,
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nullptr, m_glyphBuf, nullptr, 1,
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(boo::IGraphicsBuffer**)&m_viewVertBlockBuf,
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1, texs);
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}
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m_glyphs.reserve(capacity);
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commitResources(system);
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}
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TextView::TextView(ViewResources& system, View& parentView, FontTag font, size_t capacity)
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: TextView(system, parentView, system.m_textRes.m_fcache->lookupAtlas(font), capacity) {}
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TextView::RenderGlyph::RenderGlyph(int& adv, const FontAtlas::Glyph& glyph, const Zeus::CColor& defaultColor)
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{
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m_pos[0].assign(adv + glyph.m_leftPadding, glyph.m_verticalOffset + glyph.m_height, 0.f);
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m_pos[1].assign(adv + glyph.m_leftPadding, glyph.m_verticalOffset, 0.f);
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m_pos[2].assign(adv + glyph.m_leftPadding + glyph.m_width, glyph.m_verticalOffset + glyph.m_height, 0.f);
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m_pos[3].assign(adv + glyph.m_leftPadding + glyph.m_width, glyph.m_verticalOffset, 0.f);
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m_uv[0].assign(glyph.m_uv[0], glyph.m_uv[1], glyph.m_layerFloat);
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m_uv[1].assign(glyph.m_uv[0], glyph.m_uv[3], glyph.m_layerFloat);
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m_uv[2].assign(glyph.m_uv[2], glyph.m_uv[1], glyph.m_layerFloat);
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m_uv[3].assign(glyph.m_uv[2], glyph.m_uv[3], glyph.m_layerFloat);
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m_color = defaultColor;
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adv += glyph.m_advance;
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}
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static int DoKern(FT_Pos val, const FontAtlas& atlas)
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{
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if (!val) return 0;
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val = FT_MulFix(val, atlas.FT_Xscale());
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FT_Pos orig_x = val;
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/* we scale down kerning values for small ppem values */
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/* to avoid that rounding makes them too big. */
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/* `25' has been determined heuristically. */
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if (atlas.FT_XPPem() < 25)
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val = FT_MulDiv(orig_x, atlas.FT_XPPem(), 25);
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return FT_PIX_ROUND(val) >> 6;
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}
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void TextView::typesetGlyphs(const std::string& str, const Zeus::CColor& defaultColor)
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{
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size_t rem = str.size();
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const utf8proc_uint8_t* it = reinterpret_cast<const utf8proc_uint8_t*>(str.data());
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uint32_t lCh = -1;
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m_glyphs.clear();
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m_glyphs.reserve(str.size());
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int adv = 0;
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while (rem)
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{
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utf8proc_int32_t ch;
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utf8proc_ssize_t sz = utf8proc_iterate(it, -1, &ch);
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if (sz < 0)
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Log.report(LogVisor::FatalError, "invalid UTF-8 char");
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if (ch == '\n')
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break;
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const FontAtlas::Glyph* glyph = m_fontAtlas.lookupGlyph(ch);
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if (!glyph)
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{
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rem -= sz;
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it += sz;
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continue;
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}
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if (lCh != -1)
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adv += DoKern(m_fontAtlas.lookupKern(lCh, glyph->m_glyphIdx), m_fontAtlas);
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m_glyphs.emplace_back(adv, *glyph, defaultColor);
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lCh = glyph->m_glyphIdx;
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rem -= sz;
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it += sz;
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if (m_glyphs.size() == m_capacity)
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break;
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}
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m_valid = false;
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}
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void TextView::typesetGlyphs(const std::wstring& str, const Zeus::CColor& defaultColor)
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{
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uint32_t lCh = -1;
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m_glyphs.clear();
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m_glyphs.reserve(str.size());
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int adv = 0;
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for (wchar_t ch : str)
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{
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if (ch == L'\n')
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break;
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const FontAtlas::Glyph* glyph = m_fontAtlas.lookupGlyph(ch);
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if (!glyph)
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continue;
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if (lCh != -1)
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adv += DoKern(m_fontAtlas.lookupKern(lCh, glyph->m_glyphIdx), m_fontAtlas);
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m_glyphs.emplace_back(adv, *glyph, defaultColor);
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lCh = glyph->m_glyphIdx;
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if (m_glyphs.size() == m_capacity)
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break;
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}
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m_valid = false;
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}
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void TextView::colorGlyphs(const Zeus::CColor& newColor)
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{
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for (RenderGlyph& glyph : m_glyphs)
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glyph.m_color = newColor;
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m_valid = false;
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}
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void TextView::colorGlyphsTypeOn(const Zeus::CColor& newColor, float startInterval, float fadeTime)
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{
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}
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void TextView::think()
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{
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}
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void TextView::draw(boo::IGraphicsCommandQueue* gfxQ)
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{
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View::draw(gfxQ);
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if (m_glyphs.size())
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{
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if (!m_valid)
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{
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m_glyphBuf->load(m_glyphs.data(), m_glyphs.size() * sizeof(RenderGlyph));
|
|
m_valid = true;
|
|
}
|
|
gfxQ->setShaderDataBinding(m_shaderBinding);
|
|
gfxQ->setDrawPrimitive(boo::Primitive::TriStrips);
|
|
gfxQ->drawInstances(0, 4, m_glyphs.size());
|
|
}
|
|
}
|
|
|
|
|
|
}
|