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Add some initial widget functionality (prefs partly working)

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This commit is contained in:
elasota
2020-01-01 20:24:46 -05:00
parent d9b5dd20d6
commit 5fe6218c28
85 changed files with 2131 additions and 1074 deletions
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80
PortabilityLayer/FontRenderer.cpp
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@@ -7,6 +7,7 @@
#include "MacRoman.h"
#include "PLPasStr.h"
#include "RenderedFont.h"
#include "RenderedFontMetrics.h"
#include "RenderedGlyphMetrics.h"
#include <assert.h>
@@ -19,12 +20,14 @@ namespace PortabilityLayer
class RenderedFontImpl final : public RenderedFont
{
public:
bool GetGlyph(unsigned int character, const RenderedGlyphMetrics **outMetricsPtr, const void **outData) const override;
bool GetGlyph(unsigned int character, const RenderedGlyphMetrics *&outMetricsPtr, const void *&outData) const override;
const RenderedFontMetrics &GetMetrics() const override;
size_t MeasureString(const uint8_t *chars, size_t len) const override;
void Destroy() override;
void SetCharData(unsigned int charID, const void *data, size_t dataOffset, const RenderedGlyphMetrics &metrics);
void SetFontMetrics(const RenderedFontMetrics &metrics);
static RenderedFontImpl *Create(size_t glyphDataSize);
@@ -33,7 +36,9 @@ namespace PortabilityLayer
~RenderedFontImpl();
size_t m_dataOffsets[256];
RenderedGlyphMetrics m_metrics[256];
RenderedGlyphMetrics m_glyphMetrics[256];
RenderedFontMetrics m_fontMetrics;
void *m_data;
};
@@ -49,25 +54,31 @@ namespace PortabilityLayer
static FontRendererImpl ms_instance;
};
bool RenderedFontImpl::GetGlyph(unsigned int character, const RenderedGlyphMetrics **outMetricsPtr, const void **outData) const
bool RenderedFontImpl::GetGlyph(unsigned int character, const RenderedGlyphMetrics *&outMetricsPtr, const void *&outData) const
{
const size_t dataOffset = m_dataOffsets[character];
if (!dataOffset)
return false;
*outMetricsPtr = m_metrics + character;
*outData = static_cast<const uint8_t*>(m_data) + dataOffset;
outMetricsPtr = m_glyphMetrics + character;
outData = static_cast<const uint8_t*>(m_data) + dataOffset;
return true;
}
const RenderedFontMetrics &RenderedFontImpl::GetMetrics() const
{
return m_fontMetrics;
}
size_t RenderedFontImpl::MeasureString(const uint8_t *chars, size_t len) const
{
size_t measure = 0;
for (size_t i = 0; i < len; i++)
{
const RenderedGlyphMetrics &metrics = m_metrics[chars[i]];
const RenderedGlyphMetrics &metrics = m_glyphMetrics[chars[i]];
measure += metrics.m_advanceX;
}
@@ -83,14 +94,19 @@ namespace PortabilityLayer
void RenderedFontImpl::SetCharData(unsigned int charID, const void *data, size_t dataOffset, const RenderedGlyphMetrics &metrics)
{
m_dataOffsets[charID] = dataOffset;
m_metrics[charID] = metrics;
m_glyphMetrics[charID] = metrics;
memcpy(static_cast<uint8_t*>(m_data) + dataOffset, data, metrics.m_glyphDataPitch * metrics.m_glyphHeight);
}
void RenderedFontImpl::SetFontMetrics(const RenderedFontMetrics &metrics)
{
m_fontMetrics = metrics;
}
RenderedFontImpl *RenderedFontImpl::Create(size_t glyphDataSize)
{
size_t alignedPrefixSize = sizeof(RenderedFontImpl) + PL_SYSTEM_MEMORY_ALIGNMENT - 1;
alignedPrefixSize -= alignedPrefixSize % PL_SYSTEM_MEMORY_ALIGNMENT;
size_t alignedPrefixSize = sizeof(RenderedFontImpl) + GP_SYSTEM_MEMORY_ALIGNMENT - 1;
alignedPrefixSize -= alignedPrefixSize % GP_SYSTEM_MEMORY_ALIGNMENT;
if (SIZE_MAX - alignedPrefixSize < glyphDataSize)
return nullptr;
@@ -109,7 +125,8 @@ namespace PortabilityLayer
RenderedFontImpl::RenderedFontImpl(void *data)
: m_data(data)
{
memset(m_metrics, 0, sizeof(m_metrics));
memset(m_glyphMetrics, 0, sizeof(m_glyphMetrics));
memset(&m_fontMetrics, 0, sizeof(m_fontMetrics));
memset(m_dataOffsets, 0, sizeof(m_dataOffsets));
}
@@ -124,6 +141,10 @@ namespace PortabilityLayer
if (size < 1)
return nullptr;
int32_t lineSpacing;
if (!font->GetLineSpacing(size, lineSpacing))
return nullptr;
HostFontRenderedGlyph *glyphs[numCharacters];
for (unsigned int i = 0; i < numCharacters; i++)
@@ -138,7 +159,7 @@ namespace PortabilityLayer
glyphs[i] = font->Render(unicodeCodePoint, size);
}
size_t glyphDataSize = PL_SYSTEM_MEMORY_ALIGNMENT; // So we can use 0 to mean no data
size_t glyphDataSize = GP_SYSTEM_MEMORY_ALIGNMENT; // So we can use 0 to mean no data
size_t numUsedGlyphs = 0;
for (unsigned int i = 0; i < numCharacters; i++)
{
@@ -152,7 +173,7 @@ namespace PortabilityLayer
RenderedFontImpl *rfont = RenderedFontImpl::Create(glyphDataSize);
if (rfont)
{
size_t fillOffset = PL_SYSTEM_MEMORY_ALIGNMENT;
size_t fillOffset = GP_SYSTEM_MEMORY_ALIGNMENT;
size_t numUsedGlyphs = 0;
for (unsigned int i = 0; i < numCharacters; i++)
@@ -190,6 +211,41 @@ namespace PortabilityLayer
}
}
// Compute metrics
RenderedFontMetrics fontMetrics;
fontMetrics.m_linegap = lineSpacing;
fontMetrics.m_ascent = 0;
fontMetrics.m_descent = 0;
bool measuredAnyGlyphs = false;
for (char capChar = 'A'; capChar <= 'Z'; capChar++)
{
const RenderedGlyphMetrics *glyphMetrics;
const void *glyphData;
if (rfont->GetGlyph(static_cast<unsigned int>(capChar), glyphMetrics, glyphData) && glyphMetrics != nullptr)
{
const int32_t ascent = glyphMetrics->m_bearingY;
const int32_t descent = static_cast<int32_t>(glyphMetrics->m_glyphHeight) - ascent;
if (!measuredAnyGlyphs)
{
fontMetrics.m_ascent = ascent;
fontMetrics.m_descent = descent;
measuredAnyGlyphs = true;
}
else
{
if (ascent > fontMetrics.m_ascent)
fontMetrics.m_ascent = ascent;
if (descent > fontMetrics.m_descent)
fontMetrics.m_descent = descent;
}
}
}
rfont->SetFontMetrics(fontMetrics);
for (unsigned int i = 0; i < numCharacters; i++)
{
if (glyphs[i])