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[nostalgia] Break part of core out into Turbine and TeaGBA libraries

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This commit is contained in:
Gary Talent
2023-06-01 23:22:31 -05:00
parent 07284ac595
commit 8c43baedea
119 changed files with 1918 additions and 1873 deletions
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src/nostalgia/core/opengl/gfx.cpp
+505 -14
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@@ -2,13 +2,337 @@
* Copyright 2016 - 2023 Gary Talent (gary@drinkingtea.net). All rights reserved.
*/
#include <nostalgia/core/gfx.hpp>
#include <imgui_impl_opengl3.h>
#include <ox/std/array.hpp>
#include <ox/std/fmt.hpp>
#include <ox/std/vec.hpp>
#include <keel/media.hpp>
#include "gfx.hpp"
#include <nostalgia/glutils/glutils.hpp>
#include <nostalgia/core/context.hpp>
#include <nostalgia/core/gfx.hpp>
#include "context.hpp"
namespace nostalgia::core {
void draw(Context *ctx) noexcept;
namespace renderer {
void Drawer::draw(turbine::Context&) noexcept {
core::draw(m_ctx);
}
constexpr ox::StringView bgvshadTmpl = R"(
{}
in vec2 vTexCoord;
in vec2 vPosition;
out vec2 fTexCoord;
uniform float vXScale;
uniform float vTileHeight;
void main() {
float xScaleInvert = 1.0 - vXScale;
gl_Position = vec4(
vPosition.x * vXScale - xScaleInvert, vPosition.y,
0.0, 1.0);
fTexCoord = vTexCoord * vec2(1, vTileHeight);
})";
constexpr ox::StringView bgfshadTmpl = R"(
{}
out vec4 outColor;
in vec2 fTexCoord;
uniform sampler2D image;
uniform vec4 fPalette[256];
void main() {
int idx = int(texture(image, fTexCoord).rgb.r * 256);
outColor = fPalette[idx];
//outColor = vec4(0.0, 0.7, 1.0, 1.0);
})";
constexpr ox::StringView spritevshadTmpl = R"(
{}
in float vEnabled;
in vec2 vTexCoord;
in vec2 vPosition;
out vec2 fTexCoord;
uniform float vXScale;
uniform float vTileHeight;
void main() {
float xScaleInvert = 1.0 - vXScale;
gl_Position = vec4(
vPosition.x * vXScale - xScaleInvert, vPosition.y,
0.0, 1.0);
fTexCoord = vTexCoord * vec2(1, vTileHeight) * vec2(vEnabled, vEnabled);
})";
constexpr ox::StringView spritefshadTmpl = bgfshadTmpl;
[[nodiscard]]
static constexpr auto bgVertexRow(unsigned x, unsigned y) noexcept {
return y * TileRows + x;
}
static void setSpriteBufferObject(Context*,
unsigned vi,
float enabled,
float x, float y,
unsigned textureRow,
unsigned flipX,
float *vbo,
GLuint *ebo) noexcept {
// don't worry, this memcpy gets optimized to something much more ideal
constexpr float xmod = 0.1f;
constexpr float ymod = 0.1f;
x *= xmod;
y *= -ymod;
x -= 1.f;
y += 1.f - ymod;
const auto textureRowf = static_cast<float>(textureRow);
const float L = flipX ? 1 : 0;
const float R = flipX ? 0 : 1;
const ox::Array<float, SpriteVertexVboLength> vertices {
enabled, x, y, L, textureRowf + 1, // bottom left
enabled, x + xmod, y, R, textureRowf + 1, // bottom right
enabled, x + xmod, y + ymod, R, textureRowf + 0, // top right
enabled, x, y + ymod, L, textureRowf + 0, // top left
};
memcpy(vbo, vertices.data(), sizeof(vertices));
const ox::Array<GLuint, SpriteVertexEboLength> elms {
vi + 0, vi + 1, vi + 2,
vi + 2, vi + 3, vi + 0,
};
memcpy(ebo, elms.data(), sizeof(elms));
}
static void setTileBufferObject(Context*,
unsigned vi,
float x,
float y,
unsigned textureRow,
float *vbo,
GLuint *ebo) noexcept {
// don't worry, this memcpy gets optimized to something much more ideal
constexpr float ymod = 0.1f;
constexpr float xmod = 0.1f;
x *= xmod;
y *= -ymod;
x -= 1.0f;
y += 1.0f - ymod;
const auto textureRowf = static_cast<float>(textureRow);
const ox::Array<float, BgVertexVboLength> vertices {
x, y, 0, textureRowf + 1, // bottom left
x + xmod, y, 1, textureRowf + 1, // bottom right
x + xmod, y + ymod, 1, textureRowf + 0, // top right
x, y + ymod, 0, textureRowf + 0, // top left
};
memcpy(vbo, vertices.data(), sizeof(vertices));
const ox::Array<GLuint, BgVertexEboLength> elms {
vi + 0, vi + 1, vi + 2,
vi + 2, vi + 3, vi + 0,
};
memcpy(ebo, elms.data(), sizeof(elms));
}
static void initSpriteBufferObjects(Context *ctx, glutils::BufferSet *bs) noexcept {
for (auto i = 0u; i < SpriteCount; ++i) {
auto vbo = &bs->vertices[i * static_cast<std::size_t>(SpriteVertexVboLength)];
auto ebo = &bs->elements[i * static_cast<std::size_t>(SpriteVertexEboLength)];
setSpriteBufferObject(ctx, i * SpriteVertexVboRows, 0, 0, 0, 0, false, vbo, ebo);
}
}
static void initBackgroundBufferObjects(Context *ctx, glutils::BufferSet *bg) noexcept {
for (auto x = 0u; x < TileColumns; ++x) {
for (auto y = 0u; y < TileRows; ++y) {
const auto i = bgVertexRow(x, y);
auto vbo = &bg->vertices[i * static_cast<std::size_t>(BgVertexVboLength)];
auto ebo = &bg->elements[i * static_cast<std::size_t>(BgVertexEboLength)];
setTileBufferObject(ctx, i * BgVertexVboRows, static_cast<float>(x), static_cast<float>(y), 0, vbo, ebo);
}
}
}
static void initSpritesBufferset(Context *ctx, GLuint shader, glutils::BufferSet *bs) noexcept {
// vao
bs->vao = glutils::generateVertexArrayObject();
glBindVertexArray(bs->vao);
// vbo & ebo
bs->vbo = glutils::generateBuffer();
bs->ebo = glutils::generateBuffer();
initSpriteBufferObjects(ctx, bs);
glutils::sendVbo(*bs);
glutils::sendEbo(*bs);
// vbo layout
auto enabledAttr = static_cast<GLuint>(glGetAttribLocation(shader, "vEnabled"));
glEnableVertexAttribArray(enabledAttr);
glVertexAttribPointer(enabledAttr, 1, GL_FLOAT, GL_FALSE, SpriteVertexVboRowLength * sizeof(float), nullptr);
auto posAttr = static_cast<GLuint>(glGetAttribLocation(shader, "vPosition"));
glEnableVertexAttribArray(posAttr);
glVertexAttribPointer(posAttr, 2, GL_FLOAT, GL_FALSE, SpriteVertexVboRowLength * sizeof(float),
reinterpret_cast<void*>(1 * sizeof(float)));
auto texCoordAttr = static_cast<GLuint>(glGetAttribLocation(shader, "vTexCoord"));
glEnableVertexAttribArray(texCoordAttr);
glVertexAttribPointer(texCoordAttr, 2, GL_FLOAT, GL_FALSE, SpriteVertexVboRowLength * sizeof(float),
reinterpret_cast<void*>(3 * sizeof(float)));
}
static void initBackgroundBufferset(Context *ctx, GLuint shader, glutils::BufferSet *bg) noexcept {
// vao
bg->vao = glutils::generateVertexArrayObject();
glBindVertexArray(bg->vao);
// vbo & ebo
bg->vbo = glutils::generateBuffer();
bg->ebo = glutils::generateBuffer();
initBackgroundBufferObjects(ctx, bg);
glutils::sendVbo(*bg);
glutils::sendEbo(*bg);
// vbo layout
auto posAttr = static_cast<GLuint>(glGetAttribLocation(shader, "vPosition"));
glEnableVertexAttribArray(posAttr);
glVertexAttribPointer(posAttr, 2, GL_FLOAT, GL_FALSE, BgVertexVboRowLength * sizeof(float), nullptr);
auto texCoordAttr = static_cast<GLuint>(glGetAttribLocation(shader, "vTexCoord"));
glEnableVertexAttribArray(texCoordAttr);
glVertexAttribPointer(texCoordAttr, 2, GL_FLOAT, GL_FALSE, BgVertexVboRowLength * sizeof(float),
reinterpret_cast<void*>(2 * sizeof(float)));
}
static glutils::GLTexture loadTexture(GLsizei w, GLsizei h, const void *pixels) noexcept {
GLuint texId = 0;
glGenTextures(1, &texId);
glutils::GLTexture tex(texId);
tex.width = w;
tex.height = h;
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, tex.id);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tex.width, tex.height, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
return tex;
}
static void drawBackground(CBB *cbb) noexcept {
glBindVertexArray(cbb->vao);
if (cbb->updated) {
cbb->updated = false;
glutils::sendVbo(*cbb);
}
glBindTexture(GL_TEXTURE_2D, cbb->tex);
glDrawElements(GL_TRIANGLES, static_cast<GLsizei>(cbb->elements.size()), GL_UNSIGNED_INT, nullptr);
}
static void drawBackgrounds(GlContext *gctx) noexcept {
// load background shader and its uniforms
glUseProgram(gctx->bgShader);
const auto uniformXScale = static_cast<GLint>(glGetUniformLocation(gctx->bgShader, "vXScale"));
const auto uniformTileHeight = static_cast<GLint>(glGetUniformLocation(gctx->bgShader, "vTileHeight"));
const auto [wi, hi] = gl::getRenderSize(gctx);
const auto wf = static_cast<float>(wi);
const auto hf = static_cast<float>(hi);
glUniform1f(uniformXScale, hf / wf);
for (const auto &bg : gctx->backgrounds) {
if (bg.enabled) {
auto &cbb = gctx->cbbs[bg.cbbIdx];
const auto tileRows = cbb.tex.height / TileHeight;
glUniform1f(uniformTileHeight, 1.0f / static_cast<float>(tileRows));
drawBackground(&cbb);
}
}
}
static void drawSprites(GlContext *gctx) noexcept {
glUseProgram(gctx->spriteShader);
auto &sb = gctx->spriteBlocks;
const auto uniformXScale = static_cast<GLint>(glGetUniformLocation(gctx->bgShader, "vXScale"));
const auto uniformTileHeight = static_cast<GLint>(glGetUniformLocation(gctx->spriteShader, "vTileHeight"));
const auto [wi, hi] = gl::getRenderSize(gctx);
const auto wf = static_cast<float>(wi);
const auto hf = static_cast<float>(hi);
glUniform1f(uniformXScale, hf / wf);
// update vbo
glBindVertexArray(sb.vao);
if (sb.updated) {
sb.updated = false;
glutils::sendVbo(sb);
}
// set vTileHeight uniform
const auto tileRows = sb.tex.height / TileHeight;
glUniform1f(uniformTileHeight, 1.0f / static_cast<float>(tileRows));
// draw
glBindTexture(GL_TEXTURE_2D, sb.tex);
glDrawElements(GL_TRIANGLES, static_cast<GLsizei>(sb.elements.size()), GL_UNSIGNED_INT, nullptr);
}
static void loadPalette(GLuint shaderPgrm, const Palette &pal, bool firstIsTransparent = false) noexcept {
static constexpr std::size_t ColorCnt = 256;
ox::Array<GLfloat, ColorCnt * 4> palette{};
for (auto i = 0u; const auto c : pal.colors) {
palette[i++] = redf(c);
palette[i++] = greenf(c);
palette[i++] = bluef(c);
palette[i++] = 255;
}
if (firstIsTransparent) {
palette[3] = 0;
}
glUseProgram(shaderPgrm);
const auto uniformPalette = static_cast<GLint>(glGetUniformLocation(shaderPgrm, "fPalette"));
glUniform4fv(uniformPalette, ColorCnt, palette.data());
}
static void loadBgPalette(GlContext *gctx, const Palette &pal) noexcept {
loadPalette(gctx->bgShader, pal);
}
static void loadSpritePalette(GlContext *gctx, const Palette &pal) noexcept {
loadPalette(gctx->spriteShader, pal, true);
}
static void loadBgTexture(GlContext *gctx, unsigned cbbIdx, const void *pixels, int w, int h) noexcept {
oxTracef("nostalgia::core::gfx::gl", "loadBgTexture: { cbbIdx: {}, w: {}, h: {} }", cbbIdx, w, h);
gctx->cbbs[cbbIdx].tex = loadTexture(w, h, pixels);
}
static void loadSpriteTexture(GlContext *gctx, const void *pixels, int w, int h) noexcept {
oxTracef("nostalgia::core::gfx::gl", "loadSpriteTexture: { w: {}, h: {} }", w, h);
gctx->spriteBlocks.tex = loadTexture(w, h, pixels);
}
}
ox::Error initGfx(Context *ctx, const InitParams &initParams) noexcept {
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
const auto bgVshad = ox::sfmt(renderer::bgvshadTmpl, glutils::GlslVersion);
const auto bgFshad = ox::sfmt(renderer::bgfshadTmpl, glutils::GlslVersion);
const auto spriteVshad = ox::sfmt(renderer::spritevshadTmpl, glutils::GlslVersion);
const auto spriteFshad = ox::sfmt(renderer::spritefshadTmpl, glutils::GlslVersion);
const auto gctx = static_cast<GlContext*>(ctx);
oxReturnError(glutils::buildShaderProgram(bgVshad.c_str(), bgFshad.c_str()).moveTo(&gctx->bgShader));
oxReturnError(glutils::buildShaderProgram(spriteVshad.c_str(), spriteFshad.c_str()).moveTo(&gctx->spriteShader));
for (auto &bg : gctx->cbbs) {
initBackgroundBufferset(ctx, gctx->bgShader, &bg);
}
gctx->drawer.m_ctx = ctx;
if (initParams.glInstallDrawer) {
turbine::gl::addDrawer(*ctx->turbineCtx, &gctx->drawer);
initSpritesBufferset(ctx, gctx->spriteShader, &gctx->spriteBlocks);
}
ImGui_ImplOpenGL3_Init(glutils::GlslVersion);
return {};
}
void shutdownGfx(Context *ctx) noexcept {
const auto gctx = static_cast<GlContext*>(ctx);
turbine::gl::removeDrawer(*ctx->turbineCtx, &gctx->drawer);
}
ox::Error initConsole(Context *ctx) noexcept {
constexpr ox::FileAddress TilesheetAddr("/TileSheets/Charset.ng");
constexpr ox::FileAddress PaletteAddr("/Palettes/Charset.npal");
@@ -24,6 +348,7 @@ struct TileSheetData {
};
ox::Result<TileSheetData> loadTileSheet(Context *ctx, const CompactTileSheet &tilesheet) noexcept {
const auto gctx = static_cast<GlContext*>(ctx);
const unsigned bytesPerTile = tilesheet.bpp == 8 ? PixelsPerTile : PixelsPerTile / 2;
const auto tiles = tilesheet.pixels.size() / bytesPerTile;
constexpr int width = 8;
@@ -41,8 +366,7 @@ ox::Result<TileSheetData> loadTileSheet(Context *ctx, const CompactTileSheet &ti
pixels[i * 2 + 1] = tilesheet.pixels[i] >> 4;
}
}
const auto rd = ctx->rendererData<void>();
renderer::loadSpriteTexture(rd, pixels.data(), width, height);
renderer::loadSpriteTexture(gctx, pixels.data(), width, height);
return TileSheetData{std::move(pixels), width, height};
}
@@ -50,24 +374,26 @@ ox::Error loadBgTileSheet(Context *ctx,
unsigned cbb,
const ox::FileAddress &tilesheetAddr,
const ox::FileAddress &paletteAddr) noexcept {
oxRequire(tilesheet, readObj<CompactTileSheet>(ctx, tilesheetAddr));
oxRequire(palette, readObj<Palette>(ctx, paletteAddr ? paletteAddr : tilesheet->defaultPalette));
auto &kctx = *ctx->turbineCtx;
const auto gctx = static_cast<GlContext*>(ctx);
oxRequire(tilesheet, readObj<CompactTileSheet>(&kctx, tilesheetAddr));
oxRequire(palette, readObj<Palette>(&kctx, paletteAddr ? paletteAddr : tilesheet->defaultPalette));
oxRequire(tsd, loadTileSheet(ctx, *tilesheet));
const auto rd = ctx->rendererData<void>();
renderer::loadBgTexture(rd, cbb, tsd.pixels.data(), tsd.width, tsd.height);
renderer::loadBgPalette(rd, *palette);
renderer::loadBgTexture(gctx, cbb, tsd.pixels.data(), tsd.width, tsd.height);
renderer::loadBgPalette(gctx, *palette);
return {};
}
ox::Error loadSpriteTileSheet(Context *ctx,
const ox::FileAddress &tilesheetAddr,
const ox::FileAddress &paletteAddr) noexcept {
oxRequire(tilesheet, readObj<CompactTileSheet>(ctx, tilesheetAddr));
oxRequire(palette, readObj<Palette>(ctx, paletteAddr ? paletteAddr : tilesheet->defaultPalette));
auto &kctx = *ctx->turbineCtx;
const auto gctx = static_cast<GlContext*>(ctx);
oxRequire(tilesheet, readObj<CompactTileSheet>(&kctx, tilesheetAddr));
oxRequire(palette, readObj<Palette>(&kctx, paletteAddr ? paletteAddr : tilesheet->defaultPalette));
oxRequire(tsd, loadTileSheet(ctx, *tilesheet));
const auto rd = ctx->rendererData<void>();
renderer::loadSpriteTexture(rd, tsd.pixels.data(), tsd.width, tsd.height);
renderer::loadSpritePalette(rd, *palette);
renderer::loadSpriteTexture(gctx, tsd.pixels.data(), tsd.width, tsd.height);
renderer::loadSpritePalette(gctx, *palette);
return {};
}
@@ -77,5 +403,170 @@ void puts(Context *ctx, int column, int row, ox::CRStringView str) noexcept {
setTile(ctx, 0, static_cast<int>(col + i), row, static_cast<uint8_t>(charMap[static_cast<uint8_t>(str[i])]));
}
}
void setBgCbb(Context *ctx, unsigned bgIdx, unsigned cbbIdx) noexcept {
const auto gctx = static_cast<GlContext*>(ctx);
auto &bg = gctx->backgrounds[bgIdx];
bg.cbbIdx = cbbIdx;
}
uint8_t bgStatus(Context *ctx) noexcept {
const auto gctx = static_cast<GlContext*>(ctx);
uint8_t out = 0;
for (unsigned i = 0; i < gctx->cbbs.size(); ++i) {
out |= gctx->backgrounds[i].enabled << i;
}
return out;
}
void setBgStatus(Context *ctx, uint32_t status) noexcept {
const auto gctx = static_cast<GlContext*>(ctx);
for (unsigned i = 0; i < gctx->cbbs.size(); ++i) {
gctx->backgrounds[i].enabled = (status >> i) & 1;
}
}
bool bgStatus(Context *ctx, unsigned bg) noexcept {
const auto gctx = static_cast<GlContext*>(ctx);
return gctx->backgrounds[bg].enabled;
}
void setBgStatus(Context *ctx, unsigned bg, bool status) noexcept {
const auto gctx = static_cast<GlContext*>(ctx);
gctx->backgrounds[bg].enabled = status;
}
void draw(Context *ctx) noexcept {
gl::drawMainView(ctx);
}
void clearTileLayer(Context *ctx, unsigned bgIdx) noexcept {
const auto gctx = static_cast<GlContext*>(ctx);
auto &bg = gctx->cbbs[static_cast<std::size_t>(bgIdx)];
initBackgroundBufferObjects(ctx, &bg);
bg.updated = true;
}
void hideSprite(Context *ctx, unsigned idx) noexcept {
auto &gctx = *static_cast<GlContext*>(ctx);
auto vbo = &gctx.spriteBlocks.vertices[idx * renderer::SpriteVertexVboLength];
auto ebo = &gctx.spriteBlocks.elements[idx * renderer::SpriteVertexEboLength];
renderer::setSpriteBufferObject(ctx, idx * renderer::SpriteVertexVboRows, 0,
0, 0, 0, false, vbo, ebo);
gctx.spriteBlocks.updated = true;
}
void setSprite(Context *ctx,
unsigned idx,
int x,
int y,
unsigned tileIdx,
[[maybe_unused]] unsigned spriteShape,
[[maybe_unused]] unsigned spriteSize,
unsigned flipX) noexcept {
//oxTracef("nostalgia::core::gfx::gl", "setSprite(ctx, {}, {}, {}, {}, {}, {}, {})",
// idx, x, y, tileIdx, spriteShape, spriteSize, flipX);
// Tonc Table 8.4
static constexpr ox::Array<ox::Vec<unsigned>, 12> dimensions{
// col 0
{1, 1}, // 0, 0
{2, 2}, // 0, 1
{4, 4}, // 0, 2
{8, 8}, // 0, 3
// col 1
{2, 1}, // 1, 0
{4, 1}, // 1, 1
{4, 2}, // 1, 2
{8, 4}, // 1, 3
// col 2
{1, 1}, // 2, 0
{1, 4}, // 2, 1
{2, 4}, // 2, 2
{4, 8}, // 2, 3
};
const auto dim = dimensions[(spriteShape << 2) | spriteSize];
const auto uX = static_cast<int>(x) % 255;
const auto uY = static_cast<int>(y + 8) % 255 - 8;
auto &gctx = static_cast<GlContext&>(*ctx);
auto i = 0u;
const auto set = [&](int xIt, int yIt) {
const auto fX = static_cast<float>(uX + xIt * 8) / 8;
const auto fY = static_cast<float>(uY + yIt * 8) / 8;
const auto cidx = idx + i;
auto vbo = &gctx.spriteBlocks.vertices[cidx * renderer::SpriteVertexVboLength];
auto ebo = &gctx.spriteBlocks.elements[cidx * renderer::SpriteVertexEboLength];
renderer::setSpriteBufferObject(ctx, cidx * renderer::SpriteVertexVboRows, 1,
fX, fY, tileIdx + i, flipX, vbo, ebo);
++i;
};
if (!flipX) {
for (auto yIt = 0; yIt < static_cast<int>(dim.y); ++yIt) {
for (auto xIt = 0u; xIt < dim.x; ++xIt) {
set(static_cast<int>(xIt), static_cast<int>(yIt));
}
}
} else {
for (auto yIt = 0u; yIt < dim.y; ++yIt) {
for (auto xIt = dim.x - 1; xIt < ~0u; --xIt) {
set(static_cast<int>(xIt), static_cast<int>(yIt));
}
}
}
gctx.spriteBlocks.updated = true;
}
void setTile(Context *ctx, unsigned bgIdx, int column, int row, uint8_t tile) noexcept {
oxTracef(
"nostalgia::core::gfx::setTile",
"bgIdx: {}, column: {}, row: {}, tile: {}",
bgIdx, column, row, tile);
const auto gctx = static_cast<GlContext*>(ctx);
const auto z = static_cast<unsigned>(bgIdx);
const auto y = static_cast<unsigned>(row);
const auto x = static_cast<unsigned>(column);
const auto i = renderer::bgVertexRow(x, y);
auto &bg = gctx->cbbs[z];
auto vbo = &bg.vertices[i * renderer::BgVertexVboLength];
auto ebo = &bg.elements[i * renderer::BgVertexEboLength];
renderer::setTileBufferObject(
ctx, i * renderer::BgVertexVboRows,
static_cast<float>(x), static_cast<float>(y),
tile, vbo, ebo);
bg.updated = true;
}
namespace gl {
void drawMainView(core::Context *ctx) noexcept {
// clear screen
glClearColor(0, 0, 0, 1);
glClear(GL_COLOR_BUFFER_BIT);
const auto gctx = static_cast<GlContext*>(ctx);
renderer::drawBackgrounds(gctx);
if (gctx->spriteBlocks.tex) {
renderer::drawSprites(gctx);
}
}
void setRenderSize(core::Context *ctx, int width, int height) noexcept {
const auto gctx = static_cast<GlContext*>(ctx);
gctx->renderSize.emplace(width, height);
}
void clearRenderSize(core::Context *ctx) noexcept {
const auto gctx = static_cast<GlContext*>(ctx);
gctx->renderSize.reset();
}
ox::Size getRenderSize(core::Context *ctx) noexcept {
const auto gctx = static_cast<GlContext*>(ctx);
if (gctx->renderSize.has_value()) {
return gctx->renderSize.value();
} else {
return turbine::getScreenSize(*ctx->turbineCtx);
}
}
}
}