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Merge branch 'master' into 'master'

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Fix glViewport()

See merge request simulant/GLdc!62
This commit is contained in:
Luke Benstead 2020-10-07 07:10:09 +00:00
commit 8c187f67de
1 changed files with 3 additions and 7 deletions
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10
GL/matrix.c
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@ -416,19 +416,15 @@ void APIENTRY glViewport(GLint x, GLint y, GLsizei width, GLsizei height) {
gl_viewport_width = width;
gl_viewport_height = height;
GLfloat rw = x + width;
GLfloat lw = x;
GLfloat tw = y + height;
GLfloat bw = y;
GLfloat hw = ((GLfloat) width) / 2.0f;
GLfloat hh = ((GLfloat) height) / 2.0f;
y *= -1; // Flip
SCREENVIEW_MATRIX[M0] = hw;
SCREENVIEW_MATRIX[M5] = -hh;
SCREENVIEW_MATRIX[M10] = 1;
SCREENVIEW_MATRIX[M12] = (rw + lw) / 2.0f;
SCREENVIEW_MATRIX[M13] = (tw + bw) / 2.0f;
SCREENVIEW_MATRIX[M12] = hw + x;
SCREENVIEW_MATRIX[M13] = vid_mode->height - hh + y;
}
/* Set the depth range */