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Squashed 'deps/nostalgia/' changes from 124c7029..f128664a

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f128664a [olympic/studio] Add ig::IndentStackItem
e84df780 [glutils] Add ProgramSource::vboLen
caa59f37 [nostalgia/core] Add functions for mapping tile idx to subsheet
1cf09433 [nostalgia/core/studio] Cleanup TileSheetEditor with new GlUtils helpers
9948346c [ox/model] Fix clangd false alarm
aa8200be [glutils] Add helper functions for setting up shaders

git-subtree-dir: deps/nostalgia
git-subtree-split: f128664a81b817aaf066de02cc3a09650958ace9
This commit is contained in:
Gary Talent
2024-01-27 23:55:20 -06:00
parent ae1f8ce11a
commit db978290f3
9 changed files with 185 additions and 43 deletions
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6
src/nostalgia/modules/core/include/nostalgia/core/tilesheet.hpp
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@@ -158,6 +158,12 @@ struct TileSheet {
[[nodiscard]]
std::size_t idx(TileSheet::SubSheet const&ss, ox::Point const&pt) noexcept;
[[nodiscard]]
TileSheet::SubSheet const*getSubsheet(TileSheet const&ts, SubSheetId const id) noexcept;
[[nodiscard]]
size_t getTileIdx(TileSheet const&ts, SubSheetId id) noexcept;
[[nodiscard]]
uint8_t getPixel4Bpp(TileSheet::SubSheet const&ss, std::size_t idx) noexcept;

55
src/nostalgia/modules/core/src/studio/tilesheeteditor/tilesheetpixels.cpp
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@@ -9,6 +9,37 @@
namespace nostalgia::core {
const glutils::ProgramSource TileSheetPixels::s_programSrc = {
.shaderParams = {
{
.len = 2,
.name = ox::String("vPosition"),
},
{
.len = 3,
.name = ox::String("vColor"),
},
},
.vertShader = ox::sfmt(R"(
{}
in vec2 vPosition;
in vec3 vColor;
out vec3 fColor;
uniform vec2 vScroll;
void main() {
gl_Position = vec4(vPosition + vScroll, 0.0, 1.0);
fColor = vColor;
})", core::gl::GlslVersion),
.fragShader = ox::sfmt(R"(
{}
in vec3 fColor;
out vec4 outColor;
void main() {
//outColor = vec4(0.0, 0.7, 1.0, 1.0);
outColor = vec4(fColor, 1.0);
})", core::gl::GlslVersion),
};
TileSheetPixels::TileSheetPixels(TileSheetEditorModel &model) noexcept: m_model(model) {
}
@@ -17,9 +48,7 @@ void TileSheetPixels::setPixelSizeMod(float sm) noexcept {
}
ox::Error TileSheetPixels::buildShader() noexcept {
auto const Vshad = ox::sfmt(VShad, gl::GlslVersion);
auto const Fshad = ox::sfmt(FShad, gl::GlslVersion);
return glutils::buildShaderProgram(Vshad, Fshad).moveTo(m_shader);
return glutils::buildShaderProgram(s_programSrc).moveTo(m_shader);
}
void TileSheetPixels::draw(bool update, ox::Vec2 const&scroll) noexcept {
@@ -40,14 +69,7 @@ void TileSheetPixels::initBufferSet(ox::Vec2 const&paneSize) noexcept {
m_bufferSet.vbo = glutils::generateBuffer();
m_bufferSet.ebo = glutils::generateBuffer();
update(paneSize);
// vbo layout
auto const posAttr = static_cast<GLuint>(glGetAttribLocation(m_shader, "vPosition"));
glEnableVertexAttribArray(posAttr);
glVertexAttribPointer(posAttr, 2, GL_FLOAT, GL_FALSE, VertexVboRowLength * sizeof(float), nullptr);
auto const colorAttr = static_cast<GLuint>(glGetAttribLocation(m_shader, "vColor"));
glEnableVertexAttribArray(colorAttr);
glVertexAttribPointer(colorAttr, 3, GL_FLOAT, GL_FALSE, VertexVboRowLength * sizeof(float),
std::bit_cast<void*>(uintptr_t{2 * sizeof(float)}));
glutils::setupShaderParams(m_shader, s_programSrc.shaderParams);
}
void TileSheetPixels::update(ox::Vec2 const&paneSize) noexcept {
@@ -78,14 +100,14 @@ void TileSheetPixels::setPixelBufferObject(
y += 1.0f - ymod;
auto const r = redf(color), g = greenf(color), b = bluef(color);
// don't worry, these memcpys gets optimized to something much more ideal
ox::Array<float, VertexVboLength> const vertices = {
std::array const vertices = {
x, y, r, g, b, // bottom left
x + xmod, y, r, g, b, // bottom right
x + xmod, y + ymod, r, g, b, // top right
x, y + ymod, r, g, b, // top left
};
memcpy(vbo, vertices.data(), sizeof(vertices));
ox::Array<GLuint, VertexEboLength> const elms = {
std::array const elms = {
vertexRow + 0, vertexRow + 1, vertexRow + 2,
vertexRow + 2, vertexRow + 3, vertexRow + 0,
};
@@ -99,7 +121,8 @@ void TileSheetPixels::setBufferObjects(ox::Vec2 const&paneSize) noexcept {
auto const width = subSheet.columns * TileWidth;
auto const height = subSheet.rows * TileHeight;
auto const pixels = static_cast<size_t>(width) * static_cast<size_t>(height);
m_bufferSet.vertices.resize(pixels * VertexVboLength);
auto const vboLen = static_cast<size_t>(s_programSrc.vboLen);
m_bufferSet.vertices.resize(pixels * vboLen);
m_bufferSet.elements.resize(pixels * VertexEboLength);
// set pixels
walkPixels(subSheet, m_model.img().bpp, [&](std::size_t i, uint8_t p) {
@@ -107,9 +130,9 @@ void TileSheetPixels::setBufferObjects(ox::Vec2 const&paneSize) noexcept {
auto const pt = idxToPt(static_cast<int>(i), subSheet.columns);
auto const fx = static_cast<float>(pt.x);
auto const fy = static_cast<float>(pt.y);
auto const vbo = &m_bufferSet.vertices[i * VertexVboLength];
auto const vbo = &m_bufferSet.vertices[i * vboLen];
auto const ebo = &m_bufferSet.elements[i * VertexEboLength];
if (i * VertexVboLength + VertexVboLength > m_bufferSet.vertices.size()) {
if (i * vboLen + vboLen > m_bufferSet.vertices.size()) {
return;
}
if (i * VertexEboLength + VertexEboLength > m_bufferSet.elements.size()) {

21
src/nostalgia/modules/core/src/studio/tilesheeteditor/tilesheetpixels.hpp
View File

@@ -18,28 +18,9 @@ class TileSheetPixels {
private:
static constexpr auto VertexVboRows = 4;
static constexpr auto VertexVboRowLength = 5;
static constexpr auto VertexVboLength = VertexVboRows * VertexVboRowLength;
static constexpr auto VertexEboLength = 6;
static constexpr auto VShad = R"(
{}
in vec2 vPosition;
in vec3 vColor;
out vec3 fColor;
uniform vec2 vScroll;
void main() {
gl_Position = vec4(vPosition + vScroll, 0.0, 1.0);
fColor = vColor;
})";
static constexpr auto FShad = R"(
{}
in vec3 fColor;
out vec4 outColor;
void main() {
//outColor = vec4(0.0, 0.7, 1.0, 1.0);
outColor = vec4(fColor, 1.0);
})";
static const glutils::ProgramSource s_programSrc;
float m_pixelSizeMod = 1;
glutils::GLProgram m_shader;
glutils::BufferSet m_bufferSet;

38
src/nostalgia/modules/core/src/tilesheet.cpp
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@@ -14,6 +14,44 @@ std::size_t idx(TileSheet::SubSheet const&ss, ox::Point const&pt) noexcept {
return ptToIdx(pt, ss.columns);
}
static TileSheet::SubSheet const*getSubsheet(TileSheet::SubSheet const&ss, SubSheetId const id) noexcept {
if (ss.id == id) {
return &ss;
}
for (auto const&child : ss.subsheets) {
if (auto out = getSubsheet(child, id)) {
return out;
}
}
return {};
}
TileSheet::SubSheet const*getSubsheet(TileSheet const&ts, SubSheetId const id) noexcept {
return getSubsheet(ts.subsheet, id);
}
static ox::Optional<size_t> getPixelIdx(
TileSheet::SubSheet const&ss,
SubSheetId const id,
size_t idx,
int8_t const bpp) noexcept {
for (auto const&child : ss.subsheets) {
if (child.id == id) {
return ox::Optional<size_t>(ox::in_place, idx);
}
if (auto out = getPixelIdx(child, id, idx, bpp)) {
return out;
}
idx += pixelCnt(ss, bpp);
}
return {};
}
size_t getTileIdx(TileSheet const&ts, SubSheetId const id) noexcept {
auto const out = getPixelIdx(ts.subsheet, id, 0, ts.bpp);
return out.or_value(0) / PixelsPerTile;
}
uint8_t getPixel4Bpp(TileSheet::SubSheet const&ss, std::size_t idx) noexcept {
if (idx & 1) {
return ss.pixels[idx / 2] >> 4;