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Make shaders work on OpenGL 2.1.

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This commit is contained in:
John Preston 2021-05-24 19:38:52 +04:00
parent 42baa3e1bc
commit df6f5d83d6
2 changed files with 44 additions and 37 deletions
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80
Telegram/SourceFiles/calls/group/calls_group_viewport_opengl.cpp
View File

@ -26,8 +26,8 @@ struct ShaderPart {
return ranges::accumulate(parts, QString(), std::plus<>(), proj);
};
return R"(
#version 130
in vec2 position;
#version 120
attribute vec2 position;
)" + accumulate(&ShaderPart::header) + R"(
void main() {
vec4 result = vec4(position, 0., 1.);
@ -42,13 +42,12 @@ void main() {
return ranges::accumulate(parts, QString(), std::plus<>(), proj);
};
return R"(
#version 130
out vec4 fragColor;
#version 120
)" + accumulate(&ShaderPart::header) + R"(
void main() {
vec4 result = vec4(0., 0., 0., 0.);
)" + accumulate(&ShaderPart::body) + R"(
fragColor = result;
gl_FragColor = result;
}
)";
}
@ -56,8 +55,8 @@ void main() {
[[nodiscard]] ShaderPart VertexPassTextureCoord() {
return {
.header = R"(
in vec2 texcoord;
out vec2 v_texcoord;
attribute vec2 texcoord;
varying vec2 v_texcoord;
)",
.body = R"(
v_texcoord = texcoord;
@ -68,11 +67,11 @@ out vec2 v_texcoord;
[[nodiscard]] ShaderPart FragmentSampleARGB32Texture() {
return {
.header = R"(
in vec2 v_texcoord;
varying vec2 v_texcoord;
uniform sampler2D s_texture;
)",
.body = R"(
result = texture(s_texture, v_texcoord);
result = texture2D(s_texture, v_texcoord);
result = vec4(result.b, result.g, result.r, result.a);
)",
};
@ -81,15 +80,15 @@ uniform sampler2D s_texture;
[[nodiscard]] ShaderPart FragmentSampleYUV420Texture() {
return {
.header = R"(
in vec2 v_texcoord;
varying vec2 v_texcoord;
uniform sampler2D y_texture;
uniform sampler2D u_texture;
uniform sampler2D v_texture;
)",
.body = R"(
float y = texture(y_texture, v_texcoord).r;
float u = texture(u_texture, v_texcoord).r - 0.5;
float v = texture(v_texture, v_texcoord).r - 0.5;
float y = texture2D(y_texture, v_texcoord).r;
float u = texture2D(u_texture, v_texcoord).r - 0.5;
float v = texture2D(v_texture, v_texcoord).r - 0.5;
result = vec4(y + 1.403 * v, y - 0.344 * u - 0.714 * v, y + 1.77 * u, 1);
)",
};
@ -214,8 +213,12 @@ Program LinkProgram(
return { v, f };
}
[[nodiscard]] QVector4D Uniform(const QRect &rect) {
return QVector4D(rect.x(), rect.y(), rect.width(), rect.height());
[[nodiscard]] QVector4D Uniform(const QRect &rect, GLfloat factor) {
return QVector4D(
rect.x() * factor,
rect.y() * factor,
rect.width() * factor,
rect.height() * factor);
}
[[nodiscard]] QVector4D Uniform(const QColor &color) {
@ -226,15 +229,15 @@ Program LinkProgram(
color.alphaF());
}
void FillRectVertices(GLfloat *coords, QRect rect) {
coords[0] = coords[10] = rect.x();
coords[1] = coords[11] = rect.y();
coords[2] = rect.x() + rect.width();
coords[3] = rect.y();
coords[4] = coords[6] = rect.x() + rect.width();
coords[5] = coords[7] = rect.y() + rect.height();
coords[8] = rect.x();
coords[9] = rect.y() + rect.height();
void FillRectVertices(GLfloat *coords, QRect rect, GLfloat factor) {
coords[0] = coords[10] = rect.x() * factor;
coords[1] = coords[11] = rect.y() * factor;
coords[2] = (rect.x() + rect.width()) * factor;
coords[3] = rect.y() * factor;
coords[4] = coords[6] = (rect.x() + rect.width()) * factor;
coords[5] = coords[7] = (rect.y() + rect.height()) * factor;
coords[8] = rect.x() * factor;
coords[9] = (rect.y() + rect.height()) * factor;
}
void FillTriangles(
@ -242,7 +245,7 @@ void FillTriangles(
gsl::span<const GLfloat> coords,
not_null<QOpenGLBuffer*> buffer,
not_null<QOpenGLShaderProgram*> program,
QSize viewport,
QSize viewportWithFactor,
const QColor &color,
Fn<void()> additional = nullptr) {
Expects(coords.size() % 6 == 0);
@ -254,7 +257,7 @@ void FillTriangles(
buffer->allocate(coords.data(), coords.size() * sizeof(GLfloat));
f->glUseProgram(program->programId());
program->setUniformValue("viewport", QSizeF(viewport));
program->setUniformValue("viewport", QSizeF(viewportWithFactor));
program->setUniformValue("s_color", Uniform(color));
GLint position = program->attributeLocation("position");
@ -289,6 +292,7 @@ void Viewport::RendererGL::free(const Textures &textures) {
void Viewport::RendererGL::init(
not_null<QOpenGLWidget*> widget,
not_null<QOpenGLFunctions*> f) {
_factor = widget->devicePixelRatio();
_frameBuffer.emplace();
_frameBuffer->setUsagePattern(QOpenGLBuffer::DynamicDraw);
_frameBuffer->create();
@ -352,13 +356,15 @@ void Viewport::RendererGL::resize(
not_null<QOpenGLFunctions*> f,
int w,
int h) {
_factor = widget->devicePixelRatio();
_viewport = QSize(w, h);
f->glViewport(0, 0, w, h);
f->glViewport(0, 0, w * _factor, h * _factor);
}
void Viewport::RendererGL::paint(
not_null<QOpenGLWidget*> widget,
not_null<QOpenGLFunctions*> f) {
_factor = widget->devicePixelRatio();
fillBackground(f);
for (const auto &tile : _owner->_tiles) {
paintTile(f, tile.get());
@ -379,7 +385,7 @@ void Viewport::RendererGL::fillBackground(not_null<QOpenGLFunctions*> f) {
_bgTriangles.resize((bg.end() - bg.begin()) * 12);
auto coords = _bgTriangles.data();
for (const auto rect : bg) {
FillRectVertices(coords, rect);
FillRectVertices(coords, rect, _factor);
coords += 12;
}
FillTriangles(
@ -387,7 +393,7 @@ void Viewport::RendererGL::fillBackground(not_null<QOpenGLFunctions*> f) {
_bgTriangles,
&*_bgBuffer,
&*_bgProgram,
_viewport,
_viewport * _factor,
st::groupCallBg->c);
}
@ -419,7 +425,7 @@ void Viewport::RendererGL::paintTile(
const auto top = (height - scaled.height()) / 2;
const auto right = left + scaled.width();
const auto bottom = top + scaled.height();
const auto radius = GLfloat(st::roundRadiusLarge * cIntRetinaFactor());
const auto radius = GLfloat(st::roundRadiusLarge);
auto dleft = float(left) / scaled.width();
auto dright = float(width - left) / scaled.width();
auto dtop = float(top) / scaled.height();
@ -442,10 +448,10 @@ void Viewport::RendererGL::paintTile(
texCoord.end());
}
const GLfloat coords[] = {
float(x), float(y), texCoord[0][0], texCoord[0][1],
float(x + width), float(y), texCoord[1][0], texCoord[1][1],
float(x + width), float(y + height), texCoord[2][0], texCoord[2][1],
float(x), float(y + height), texCoord[3][0], texCoord[3][1],
x * _factor, y * _factor, texCoord[0][0], texCoord[0][1],
(x + width) * _factor, y * _factor, texCoord[1][0], texCoord[1][1],
(x + width) * _factor, (y + height) * _factor, texCoord[2][0], texCoord[2][1],
x * _factor, (y + height) * _factor, texCoord[3][0], texCoord[3][1],
};
tile->ensureTexturesCreated(f);
@ -515,12 +521,12 @@ void Viewport::RendererGL::paintTile(
const auto program = rgba ? &*_argb32Program : &*_yuv420Program;
program->setUniformValue("viewport", QSizeF(_viewport));
program->setUniformValue("viewport", QSizeF(_viewport * _factor));
program->setUniformValue(
"frameBg",
Uniform(st::groupCallMembersBg->c));
program->setUniformValue("roundRadius", radius);
program->setUniformValue("roundRect", Uniform(geometry));
program->setUniformValue("roundRadius", radius * _factor);
program->setUniformValue("roundRect", Uniform(geometry, _factor));
program->setUniformValue("roundBg", Uniform(st::groupCallBg->c));
GLint position = program->attributeLocation("position");

1
Telegram/SourceFiles/calls/group/calls_group_viewport_opengl.h
View File

@ -50,6 +50,7 @@ private:
const not_null<Viewport*> _owner;
GLfloat _factor = 1.;
QSize _viewport;
std::optional<QOpenGLBuffer> _frameBuffer;
std::optional<QOpenGLBuffer> _bgBuffer;