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Added rounded borders.

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This commit is contained in:
vaxerski
2022-04-05 16:47:03 +02:00
parent 27c06758e4
commit 3385269dca
4 changed files with 95 additions and 17 deletions
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90
src/render/OpenGL.cpp
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@@ -235,4 +235,94 @@ void CHyprOpenGLImpl::renderTexture(const CTexture& tex, float matrix[9], float
glDisableVertexAttribArray(shader->texAttrib);
glBindTexture(tex.m_iTarget, 0);
}
void pushVert2D(float x, float y, float* arr, int& counter, wlr_box* box) {
// 0-1 space god damnit
arr[counter * 2 + 0] = x / box->width;
arr[counter * 2 + 1] = y / box->height;
counter++;
}
void CHyprOpenGLImpl::renderBorder(wlr_box* box, const CColor& col, int thick, int radius) {
RASSERT((box->width > 0 && box->height > 0), "Tried to render rect with width/height < 0!");
RASSERT(m_RenderData.pMonitor, "Tried to render rect without begin()!");
float matrix[9];
wlr_matrix_project_box(matrix, box, WL_OUTPUT_TRANSFORM_NORMAL, 0, m_RenderData.pMonitor->output->transform_matrix); // TODO: write own, don't use WLR here
float glMatrix[9];
wlr_matrix_multiply(glMatrix, m_RenderData.projection, matrix);
wlr_matrix_multiply(glMatrix, matrixFlip180, glMatrix);
wlr_matrix_transpose(glMatrix, glMatrix);
if (col.a == 255.f)
glDisable(GL_BLEND);
else
glEnable(GL_BLEND);
glUseProgram(m_shQUAD.program);
glUniformMatrix3fv(m_shQUAD.proj, 1, GL_FALSE, glMatrix);
glUniform4f(m_shQUAD.color, col.r / 255.f, col.g / 255.f, col.b / 255.f, col.a / 255.f);
// Sides are ONLY for corners meaning they have to be divisible by 4.
// 32 sides shouldn't be taxing at all on the performance.
const int SIDES = 32; // sides
const int SIDES34 = 24; // 3/4th of the sides
float verts[(SIDES + 8 + 1) * 4]; // 8 for the connections and 1 because last is doubled (begin/end)
int vertNo = 0;
// start from 0,0 tex coord space
float x = 0, y = 0, w = box->width, h = box->height;
pushVert2D(x + radius, y + h, verts, vertNo, box);
pushVert2D(x + w - radius, y + h, verts, vertNo, box);
float x1 = x + w - radius;
float y1 = y + h - radius;
for (int i = 0; i <= SIDES / 4; i++) {
pushVert2D(x1 + (sin((i * (360.f / (float)SIDES) * 3.141526f / 180)) * radius), y1 + (cos((i * (360.f / (float)SIDES) * 3.141526f / 180)) * radius), verts, vertNo, box);
}
// Right Line
pushVert2D(x + w, y + radius, verts, vertNo, box);
x1 = x + w - radius;
y1 = y + radius;
for (int i = SIDES / 4; i <= SIDES / 2; i++) {
pushVert2D(x1 + (sin((i * (360.f / (float)SIDES) * 3.141526f / 180)) * radius), y1 + (cos((i * (360.f / (float)SIDES) * 3.141526f / 180)) * radius), verts, vertNo, box);
}
// Top Line
pushVert2D(x + radius, y, verts, vertNo, box);
x1 = x + radius;
y1 = y + radius;
for (int i = SIDES / 2; i <= SIDES34; i++) {
pushVert2D(x1 + (sin((i * (360.f / (float)SIDES) * 3.141526f / 180)) * radius), y1 + (cos((i * (360.f / (float)SIDES) * 3.141526f / 180)) * radius), verts, vertNo, box);
}
// Left Line
pushVert2D(x, y + h - radius, verts, vertNo, box);
x1 = x + radius;
y1 = y + h - radius;
for (int i = SIDES34; i <= SIDES; i++) {
pushVert2D(x1 + (sin((i * (360.f / (float)SIDES) * 3.141526f / 180)) * radius), y1 + (cos((i * (360.f / (float)SIDES) * 3.141526f / 180)) * radius), verts, vertNo, box);
}
glVertexAttribPointer(m_shQUAD.posAttrib, 2, GL_FLOAT, GL_FALSE, 0, verts);
glEnableVertexAttribArray(m_shQUAD.posAttrib);
glLineWidth(thick);
glDrawArrays(GL_LINE_STRIP, 0, 41);
glDisableVertexAttribArray(m_shQUAD.posAttrib);
}