mirror/opencv
1
0
Fork 0
mirror of https://github.com/opencv/opencv.git synced 2025-01-18 06:03:15 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

OpenGL: avoid losing precision in double-to-float conversion

Browse Source
This commit is contained in:
Hamdi Sahloul 2018-09-24 17:27:03 +09:00
parent d5d19a9f67
commit 47bb09bc4b
1 changed files with 8 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
modules/core/src/opengl.cpp
View File

@ -1434,14 +1434,14 @@ void cv::ogl::render(const ogl::Texture2D& tex, Rect_<double> wndRect, Rect_<dou
gl::TexParameteri(gl::TEXTURE_2D, gl::TEXTURE_MIN_FILTER, gl::LINEAR);
CV_CheckGlError();
const float vertex[] =
const double vertex[] =
{
wndRect.x, wndRect.y, 0.0f,
wndRect.x, (wndRect.y + wndRect.height), 0.0f,
wndRect.x + wndRect.width, (wndRect.y + wndRect.height), 0.0f,
wndRect.x + wndRect.width, wndRect.y, 0.0f
wndRect.x, wndRect.y, 0.0,
wndRect.x, (wndRect.y + wndRect.height), 0.0,
wndRect.x + wndRect.width, (wndRect.y + wndRect.height), 0.0,
wndRect.x + wndRect.width, wndRect.y, 0.0
};
const float texCoords[] =
const double texCoords[] =
{
texRect.x, texRect.y,
texRect.x, texRect.y + texRect.height,
@ -1454,7 +1454,7 @@ void cv::ogl::render(const ogl::Texture2D& tex, Rect_<double> wndRect, Rect_<dou
gl::EnableClientState(gl::TEXTURE_COORD_ARRAY);
CV_CheckGlError();
gl::TexCoordPointer(2, gl::FLOAT, 0, texCoords);
gl::TexCoordPointer(2, gl::DOUBLE, 0, texCoords);
CV_CheckGlError();
gl::DisableClientState(gl::NORMAL_ARRAY);
@ -1464,7 +1464,7 @@ void cv::ogl::render(const ogl::Texture2D& tex, Rect_<double> wndRect, Rect_<dou
gl::EnableClientState(gl::VERTEX_ARRAY);
CV_CheckGlError();
gl::VertexPointer(3, gl::FLOAT, 0, vertex);
gl::VertexPointer(3, gl::DOUBLE, 0, vertex);
CV_CheckGlError();
gl::DrawArrays(gl::QUADS, 0, 4);